SUBJECT
ENTRIES
A1. State and Law. Jurisprudence
A3. Economy
À4. Education
À5. Informatics/Computer Science
B1. Mathematics. Mechanics. Physics. Cybernetics
B3. Geology.
Geodesy
B4. Geography. Cartography. Astronomy
B5. Other Natural
and Exact Sciences
C. TECHNICAL AND APPLIED SCIENCES. SECTORS OF ECONOMY
C1. Power Industry
C2. Electrical
Engineering. Electronics. Radio Engineering. Communications
C3. Automation & Telemetry.
Computer Engineering
C4. Mining.
Metallurgy. Chemical Industry
C5. Mechanical
Engineering. Instrument-making
C6. Light Industry
C7. Food Industry
C8. Construction. Architecture
C9. Agriculture
and Forestry. Fishery
C10. Water
Industry. Melioration
C11. Foreign and
Domestic Trade. Tourism
C12. Transport
C13. Medicine.
Healthcare
D1. Organization and Management
D2. Environmental Protection. Ecology
D3. Statistics
D4. Other Intersectoral Problems
A1. State and Law. Jurisprudence
6.A1.1.
Comparative analysis of political and legal aspects of national safety of
National safety has an absolute priority
compared to other problems of politics. Scientifically substantiated safety
system serves for preservation and strengthening of the basic values of the
country: State sovereignty, safety, territorial integrity, culture uniqueness
and applies to the special governance by higher state organs. One of the main
reasons of the specificity of Georgian state safety problems is its
geopolitical and geoeconomical location. One of the main directions and
priority of Georgian national safety problem is integration of
Auth.
6.A1.2.
International sources of banking law. /N.Sesadze,
T.Tamazashvili, S. Gurtsishvili/.Mermisi. – 2009. – III. – pp. 69-74. – geo.; res.:
eng.
The
present paper discusses the issue of bank legislative system and existing
problems in this sphere. The main attention is paid to the international legal
resources of bank regulation. The origin of international banking law is
connected with the economic and bank internationalized process, which is one of
the characteristic signs of the present.
Auth.
6.A1.3. The obligation to return the property
transferred on the ground of unjust enrichment. /T. Chitoshvili/.
Unjust enrichment is
one of the statutory obligations. Other statutory obligations are torts
(delictual obligations), management of the affair of another without mandate,
obligation deriving from rights in common and obligations deriving from other
grounds. Unjust enrichment is the civil relation, which arises when a person
saves or increases his property without any contractual or legal ground. This
may be done by transferring property to another person, by using another’s
property, by performing an action of another (as own obligation), etc. The rule
and the scope of the obligation to return the property received from unjust
enrichment is regulated by special provisions that envisage the obligation to
return the property and the profits and the fruits received from it, the
obligations to compensate for the damage, the grounds, when the revendication
claim shall be excluded, etc.
Auth.
6.A1.4. Point at issue in contractual
relations upon air transportation of passengers (luggage) and freight under Georgian legislation. /Sh.
Gabichvadze/.
The work deals with
peculiarities of judicial contests regulated by Georgian legislation flowing
from the contractual relations concerning air transportation; grounds for such
claims as a precondition of lawsuit; persons authorized for claiming; intervals
allowed for claims, and rules of their consideration; a commercial act as a
document evidencing amenability of the parties; grounds for lodging a claim and
general commentaries of its consideration. Analyzed is the necessity of
amending the Civil Code and the Air Code of Georgia, also of the drafting of a
bylaw determining the procedure for drawing up a commercial act.
Auth.
6.A1.5. Procedural preconditions for
analyzing the structure, dynamics and status of larceny. /M.
Jamalov/.
The criminological
character of larceny is given in this research paper implicating the following
procedural preconditions: status, structure and dynamics of larceny. The
comparative measure as crime rate (1987-2002) applied in the research helped to
define and correlate the certain number of urban population or population of
certain regions to the number of appropriation of moveable estate. On this basis it was possible to see the
modification of not only the status of larceny, i.e. the total number of
larceny, but of its structure. It is obvious that the appropriation of moveable
estate should be analyzed in a context of both the external factors and the
peculiarity of the criminal identity, but also considering the character of a victim.
Thus, the qualitative-quantitative characteristics of larceny are defined by
the following factors: a) number of committed crime and number of convicted for
larceny; b) number of registered crimes; c) structural characteristics of
crime; d) crime ratio; e) latency of
larceny; f) extent of damage. It is obvious that the crime rate in different
regions is different, depending on the different social conditions of the
population.
Auth.
6.A2.1.
Reasons of migration and urgent problems in
The
work shows that the demographic situation and the state of manpower employment
in
Auth.
6.A2.2. Acute demographic situation in
The
demographic situation in
Auth.
6.A3.1. National innovation systems of foreign
countries. /M. Kopaleishvili,
The work deals with
the innovation process structure, main factors influencing development of the
innovation process, general structure of national innovation systems; provides
an analysis of national innovation systems of foreign countries. World
countries are ranked according to known models on innovation development as
follows: (1) “traditional” – mainly the countries of the Euro-Atlantic region (
Auth.
6.A3.2.
Leasing – an effective form of assistance to small enterprises. /M.
Maghradze, K. Kutateladze, A. Burduladze/. Transactions of
The
paper deals with the use of leasing in
Auth.
6.A3.3.
Economic transformation in the countries of Central and
It
is for two decades as the world has entered a phase of new economic order. It
can be said that its success significantly depends on the process of economic
transformation going in countries of the former
Auth.
6.A3.4.
The innovation economy development prospects. /G. Jolia,
Innovation
economy is considered as an up-to-date model of socio-economic development of
highly-developed and successful countries. The main factors influencing the
innovation economy development are demonstrated; the necessity of creation,
propagation and targeted use of new knowledge is assessed together with the
role and significance of new human thinking and the maximum and proper use of its
potentialities for socio-economic development of a country.
Auth.
6.A3.5.
The characteristics of a state’s innovation development and its evaluation
criteria. /G.
Jolia,
The
cardinal changes taking place in the world economy that have created the
prospects for innovation economy development are highlighted. The said changes
influence all fields of social activities and are to significantly alter the
mechanisms of socio-economic functioning. The preference is given to the
creation of new knowledge, its propagation and reasonable use. The indicators
of innovation level evaluation of a country’s economy and the main directions
of its competitive capacity raising on the international arena are shown. It is
noted that in future special attention will be paid to the development of
hi-tech fields, the activation of scientific and engineering personnel,
increase of investments in research spheres, etc.
Auth.
6.A3.6.
Importance of small enterprise under conditions of a market economy. /L.
Chubinidze/. Georgian Scientific News. – 2009. - #4. – pp. 20-23. - rus.; res.: geo., eng., rus.
The
article deals with the importance of small enterprise under conditions of a
market economy. A special importance of small enterprise under conditions of
rapid individualization and differentiation of consumer demands, acceleration
of scientific and technological progress, increase of the nomenclature of
manufactured goods and services is shown. For successful development of small
enterprise in
Auth.
6.A3.7.
Stabilization programs of inflation. /T. Lazarashvili/. Mermisi. – 2009. – III. – pp. 43-49. – geo.; res.:
eng.
The
work deals with three main ways to regulate inflation processes: the
elaboration of antiinflation strategy, antiinflation tactics and the adjustment
to inflation. The strategic measures of antiinflation regulation and measures
necessary for their realization are analyzed. There is elucidated Keynesian and
monetary policy of antiinflation regulation.
Auth.
6.A3.8.
Bank innovations as a means of market competitiveness growth. /G. Gurgenidze, G. Bolokadze,
The
paper deals with newly introduced bank innovations, special attention being
paid to plastic cards as an effective and secure means of payment and market
competitiveness growth.
Auth.
6.A3.9.
The role of the National Bank of
The
paper deals with the role of the central bank in the national economy
development and analyzes the functions and problems of the central bank of
Auth.
6.A3.10.
The concept of environment in a bank management system. /M. Zubiashvili, T. Kortoshidze/. Mermisi. – 2009. – III. – pp. 66-68. –
geo.; res.: eng.
The
present paper deals with the bank management system’s “environment”
incorporating an aggregate of different factors (events, processes, parties,
societies, priorities), upon which the state of bank management and the
implementation of the set objectives is dependent. It is noted that in
accordance with the principle of hierarchy, two spheres can be identified in
the bank management “environment” - the
internal (endogenic, intra-system) sphere that encompasses the credit system by
levels, including bank supervision and regulation bodies, the consumer of bank
products, and partially the stock market; and the external (exogenic,
off-system) sphere, including state institutions: political and social
organizations, the business environment, social environment, and partially the
stock market.
Auth.
6.A3.11. Stability of commercial banks and the activities for
its restoring. /K.Tughushi, T. Chikadze/.
Mermisi. – 2009. – III. – pp. 75-81. – geo.; res.: eng.
The
present paper deals with the question of stability of commercial banks, analyzes
the necessary measures for the purpose of it strengthening. The authors note
insurance of deposits as a basis providing for stability of commercial banks.
The latter secures protection of depositors from the risk of losing the
deposited funds and/or minimizes such a risk in case the bank goes bankrupt.
Auth.
6.A3.12.
Rating evaluation of commercial banks. /A.
Maruashvili, M. Kenchoshvili/. Mermisi. – 2009. – III. – pp. 82-87. – geo.; res.:
eng.
The paper states that the more objective
rating evaluation of commercial banks is possible by organizations exercising
bank supervision (central bank, ministry of finance, tax agencies, etc.). The
central bank of
Auth.
6.A3.13. Proposals for perfection of pricing in the agrarian sector. /G.Dznelashvili/.
Agrarian-Economic Science and Technologies. – 2010. - #1. - pp. 66-69. – geo.; res.: eng.
Agricultural
producers are guided by market demands through continuous survey of production
marketing conditions, on which all their activities are based. The mechanism of
pricing according to the existing market price levels is also of importance.
One of the main elements for perfection of pricing is the compensatory relief.
The proper pricing strategy and determination of the real price precondition
the effective functioning of the agrarian sector, which will, in turn, ensure
the improvement of producers’ socio-economic conditions.
Auth.
6.A3.14. Recommendations on regulation of
prices for the agrarian sector. /L.Pitiurishvili/. Agrarian-Economic Science and Technologies. –
2010. - #1. - pp. 70-75. – geo.; res.:
eng.
The government
regulation of prices is of great importance. It can be carried out by means of
subsidies and/or compensation given to prime products, as well as through
starting price, allowing farmers to have a guaranteed price on farm products.
The government frequently resorts to subsidizing farmers for paying interest on
loan taken for purchasing farm inputs. The government should regulate 20-40% of
prices. This particularly concerns staple commodities: farm products, energy
carriers, construction materials, metal, and transport tariffs. This will
enable the State to control to a certain extent prices on other kinds of
commodities. To control prices and pricing in the country, it is necessary that
a special structural unit be set up at the Ministry of Finance to periodically
control the existing market prices. In addition, its main function will be the
drafting of price regulation recommendations and normative acts.
Auth.
6.A3.15. Root causes of world financial
crisis. /R.Ilashvili/.
Agrarian-economic Science and Technologies. – 2010. #1. – pp. 88-91. - rus.; res.:
geo., eng.
The
article identifies the following root causes of the world financial
crisis: (i) monetary policy; (ii) rise
in real estate prices; (iii) rise in raw material prices; (iv) real
estate/housing bubble; (v) financial bubble; (vi) toxic assets; (vii)
derivates. Trying to cope with the world economic problems, the leading
countries of the world started to carry out soft monetary policy to stimulate
activity in economy. For example, they reduced the bank interest to record
level (2003 - 1%), causing thus the converse effect and deepening of the
crisis. The real estate/housing bubble was caused by an increase in demand for
real estate and its prices. The subsequent decrease in real estate prices led
to reduced payback of credits on mortgages. The rise in raw material prices was
caused by devaluation of money. As a consequence, the price of crude oil
totaled in the 2008 summer $150 a barrel. A slump of raw material prices
affected many oil exporting countries, including
Auth.
6.A3.16. Synthesized economic parameters of justified risk and aspect ratios. /O.
Keshelashvili, M. Mechurchlishvili, E. Dzagania, N. Damenia, N. Keshelashvili/.
Agrarian-economic Science and Technologies. – 2009. - #4. - pp. 6-19. – geo.; res.: eng.
Based on an analysis
of the conducted survey it has been found that the lower the risk justification
economic limit and higher the level of return, the more justified will be the
risk run taking into account different factor positions. Also determined has
been the proportional dependence between the economic limits of risk expediency
and synthesized indicators of risk return level that has revealed regularity of
the dependence and a tendency of interrelation of these two indicators. In
general, the study has made it possible to establish for the first time under
conditions of
Auth.
6.A3.17. Insurance of
deposits for developing the Georgian banking system. /S.
Khundadze/. Agrarian-economic
Science and Technologies. – 2009. - #3. -
pp. 31-40. – eng.; res.: geo.
Analysis
of the official statistics of the NBG clearly shows how negatively is affected
the banking sector by instability. To better show the attitude of the Georgians
toward banking institutions, 200 respondents from various districts of
Auth.
6.A3.18. Review of changes in the bank system
of
Already before the
known 2008 August events the Georgian bank system had been faced with essential
problems. True, it managed somehow to resist the processes developed during the
combat actions, but they above events have further complicated the existing
problems. The August events have had a great impact on the bank system in
general and the economy in particular. In August-September, the bank system
assets decreased by GEL 1,026 million (13%). The conflict has actually revealed
all intraeconomic, as well as bank contradictions and disproportions that
existed earlier. And in September-November, the ongoing world economic crisis further
deepened these disproportions that have greatly affected the medium-term
development of the bank sector.
Auth.
6.A3.19. The bank sector and globalization. /L.
Khurtsia/.
Analysis of the
reasons of global changes in the bank sector is given. The raising speeds of
information transfer have greatly influenced the functionality of global and
local financial markets and effectiveness of bank financial operations. The
application of information technologies in financial organizations and industry
is a good opportunity to overcome time and space restrictions. The globalization
process conditions, in turn, consolidation of banks. Under conditions of
competition and expansion of markets will be absorbed in the process of bank
consolidation and globalization and replaced by universal banks and narrow
sectoral financial institutions that will best satisfy individual requirements
of the clientele.
Auth.
6.A3.20.
Post-communist capitalism and the modern world of dead economy. /V.
Papava/. Bulletin of the
After
the collapse of the Communist regimes and their command economies, the
countries of the former
Auth.
6.A3.21.
Genesis of innovation systems and the role of the state. /L.
Mindeli/. Bulletin of the
The
paper touches upon theoretical issues of co-evolution of national innovation
systems and the state institutions. The central problem of the discussion is
the state’s role in ensuring basic preconditions and the functioning of the
innovation complex. Besides, major aspects of the state contribution to the
innovation cooperation advancement are analyzed.
Auth.
6.A3.22. Features
of the modern economic crisis in
After the five-day Russian-Georgian war in August 2008, and in
consideration of the global financial crisis,
Auth.
6.A3.23. Banking
system of
The banking system of
Auth.
6.A3.24. Theory
of individual preferences: heterodoxy versus orthodoxy. /T. Arnania-Kepuladze/. Ekonomisti. - 2009. - #4.
– pp. 26-32. - rus.; res.:
eng.
The article describes two different approaches to
analyzing individual preferences: the traditional neoclassical economic theory
and the heterodox economics. Coming from small amount of basic assumptions,
such as selfish, self-interest, rationality, utility maximization, etc. and
being aware of the high level of conventions of own human behaviour model, the
orthodox preference theory is based on the assumptions of transitivity of
preference-indifference relations, strict convexity, completeness, reflexivity,
non-satiation, continuity and criticizes all other methods of investigations as
less scientific and strict..
6.A3.25. Bank
loans: tendency and regulation. /G. Lemonjava/. Ekonomisti. - 2009. - #4. – pp. 33-41. - geo.; res.: eng.
This article describes trends prevailing in development of the Georgian
banking sector. Specifically, dynamics in bank’s credit portfolio. Growth in risky
loans effected loan quality adversely. This paper discusses trends in quality
of loans and changes in the structure of credit portfolios. The analysis showed
that these changes increased significantly riskiness of bank’s credit
portfolio. Also discussed are control issues of credit risk. Regarding this,
described are the present rules of regulation and possible ways to improve
them, which is based on Basel II concept and align risk-based capital with the
economic risk. The issue is to find weights of loan’s risk for each type of
loan. These weights are to be then used to establish minimal capital
requirements.
Auth.
6.A3.26. The
state innovation policy in
The world experience shows that states that select the innovation model
of economic development efficiently use the government innovation policy. This
policy should be directed to: stirring up of innovation processes in all the
spheres of economy; improvement of investment climate; creation of favourable
conditions to efficiently use market mechanisms of stimulation of
scientific–technical skills and innovative activity; development of an innovative
infrastructure; study and efficient use of relevant skills of
scientific–technical staff, etc. The government has to create a favourable
environment for development of the innovation sphere: legislative, taxation,
credit, patent, exchange, license, export, import, etc. It should pursue such a
policy that would not only preserve the existing industrial–technical potential
but ensure its maximum stirring up and transformation in accordance with the
development conditions.
Auth.
6.A3.27. Agricultural
sector of
The existing undesirable feedback between the real and financial sectors
of economy brings heavy losses for national economy of most of the countries. The
financial crisis almost everywhere has dramatically reduced the value of assets,
affected well-being of the population and the consumer demand. Against the
background of growing uncertainty, experts believe that for the first time this
year the volume of production in the countries of developed economy will be
reduced by 2%. It is generally agreed that all main tendencies of the world economy
are in any event connected with the agrarian sphere. Most experts believe
agriculture to become in the foreseeable future the leading sector of economy
and a generator that could cope with the global crisis.
Auth.
6.A3.28. The
competitiveness of human capital in
The paper deals with the issues of use and management of human capital, how
Auth.
6.A3.29. Unemployment
and its causes in
In most countries, the post-communist transformation began with an economic
decrease. In
Auth.
6.A3.30. Problems
of
It is shown that to ensure increase of the rate of employment in
Auth.
6.A3.31. Nobel
Prize winner in economics Milton Friedmen and his views on the problem of unemployment
and ways of its overcoming. /N.
Davlasheridze/. Ekonomisti. - 2009. -
#5 – pp. 39-41. - rus.; res.: eng.
The problem of unemployment is deemed to be one of the most urgent
issues of the economic theory and the population employment and unemployment rates
are used as key indicators of macroeconomics (used for assessing the efficiency
and identifying main tendencies of functioning and development of market
relations with regard for general situation of the national economy). This
mentioned problem is the subject of many economists’ researches – beginning
with Keynes and including modern scientists. According to this, the ideas of Melton
Friedmåen’s (1976 Nobel
Prize winner in Economics) on the unemployment problem and the ways of its
overcoming are of a great interest.
Auth.
6.A3.32. Topical
issues of agricultural order policy. /.Z. Revishvili/. Ekonomisti. - 2009. - #5 – pp. 46-52. - geo.; res.: eng.
Experiences of some developing and developed countries in the formation
of a land market are considered together with the principles of government land
regulation, regulation of farm and land plot size allocation in land-poor countries;
land allocation governing laws, and opinions concerning the efficient
agricultural land allocation in Georgia that are to facilitate implementation
of successful experiences and improvement of government regulation of
agricultural land in the country.
Auth.
6.A3.33. Formation of a strong middle class in
The article analyses the changes in the number and percentage of the middle
class in total population and possibilities of its growth especially in
connection with small business development. Difficulties connected with
determination of the middle number because of law reliability of official
statistics and lack of precise criteria is considered. The role of the middle class
in the formation of conditions for sustainable economic development in Georgia
and the necessity of its further strengthening are emphasized; mistakes made in
the process of transition from the command to a market economy, connected with
the division go population into sections, bringing to the forefront of the
formation of the rich section of population, privatization shortcomings,
large-scale migration of population, wrong distribution of funds.
Auth.
6.A3.34. Foreign
investments in
The article analyzes the possibilities of rapid growth and development
of national economy with the help of local and foreign investments. In this
regard, the role of investments under globalization directed at revival of the
national economy is considered; reasons which stipulated the necessity of
attraction of investments for the country under transition, such as Georgia,
are emphasized; also, the investment
climate and its role on macro and micro levels is characterized.
Auth.
6.A3.35. Optimization
of tax and non-tax budget proceeds in
The formation of a budget needs that a balance between tax and non-tax
proceeds be maintained. It is ideal for a society when budget is mainly formed
from non-tax proceeds which are an indicator of high purchasing capacity of
population. Improvement of the investment environment should be prioritized because
this should promote the realization and expansion of local production and
international investment interests and it is the very source of national income
and wealth. The author’s views on the above issues are presented.
Auth.
6.A3.36. Influence
of developed countries on the world market. /R. Lortkipanidze/.
Ekonomisti. - 2009. - #5 – pp. 69-73. -
geo.; res.: eng.
The
computerized production that developed in the 20s in the
Auth.
6.A3.37. Stock
exchange – a guarantor of economic stability. /G. Maisuradze/. Ekonomisti. - 2009. - #5 –
pp. 74-77. - geo.; res.:
eng.
Stock exchange occupies the main place among market economic
infrastructures. It is one of the main guarantor of a stable market in a
country and existence of stable economy. Unfortunately, the Georgian stock
exchange is in initial stage of its development for a number of reasons. The
article investigates the world experience and the problems of formation of a
stock exchange in
Auth
6.A3.38.
On correlation of processes of globalization and regionalization in the
The
correlation of processes of globalization and regionalization in the
Auth.
6.A3.39.
An impact of the global financial crisis of 2008-2009 on the
The
publication covers some basic aspects of the harmful impact of the world
financial crisis of 2007-2008 on the development of the
Auth.
6.A3.40.
Gender aspects of employment in
From
the second half of the 20th century the issues of gender statistics have
become more and more significant in the system of sustainable development
conception. The article deals with quantitative and qualitative aspects of
gender equality, characterizes socio-psychological differences in gender
aspect, the influence of social and biological factors on the formation of
gender psychology, and also exposed is their influence on the employment
balance. On the basis of formal statistical data a done gender analysis of
employment is carried out.
Auth.
6.A3.41.
Labor resource management. /D. Sabashvili/. Ekonomisti. - 2010. - #1 – pp. 33-35. - geo.; res.: eng.
The
article deals with various aspects of management art and practice, such as how
select personnel, how to motivate workers to improve their skills and to earn
more and get pleasure from work. The role of a skillful manager in achieving
the above goals is emphasized.
Auth.
6.A3.42. Issues
of audit methods improvement. /N. Tsomaia/. Ekonomisti. - 2010. - #1 – pp. 47-49. - geo.; res.: eng.
At
present, audit in
Auth.
6.A3.43.
Ilia Chavchavadze and Ivane Javakhishvili on some peculiarities of national
economy formation. /M. Kvaratskhelia/. Ekonomisti. - 2010. - #1 – pp. 50-58. - geo.; res.: eng.
The
article deals with general sociological aspects of socio-economic formations,
historical peculiarities of their origin and development, the necessity of
modernizing old “law and order” to form a national state. The author justifies
the necessity of formation of a Georgian model of market relations and
considers that the existence of approved forms of economy in
Auth.
6.A3.44.
Legal ways and mechanisms of handling problems of a socially oriented market
economy under conditions of a pluralistic society. /A. Kuratashvili/.
Ekonomisti. - 2010. - #1 – pp. 59-62. -
rus.; res.: eng.
A
special attention in the work is given to the necessity of using the legal ways
and mechanisms proposed by the author that are aimed at promoting effective
functioning of a socially oriented market economy.
Auth.
6.A3.45.
The socio-economic policy of the state and its significance under conditions of
formation of civilized market relations. /N. Kuratashvili/.
Ekonomisti. - 2010. - #1 – pp. 63-66. -
geo.; res.: eng.
According
to the author, the socio-economic policy of the state in a truly human society
represents a complex social and economic approach. As an aggregate considered
are: social – as the purpose, and economic – as a means to implement the social
purpose.
Auth
6.A3.46. Business
information reliability and statistical methods of measuring its quality. /D.
Kbiladze,
In
business, as well as in other spheres of economy, no correct managerial decisions
can be made without reliable information. When developing businessmen behavior
tactics and strategy, attention should be given not only to personal intuition
but also to available quantitative methods, meaning, in itself, the application
of such methods as: influence diagrams, decision alternatives, statistical data
and probable calculations, discounts, etc. All the above are applicable under
availability of the correct and reliable information for businessmen and
managers. The information reliability analysis and improvement of its quality are
directly related to the effectiveness of managerial decisions to be made.
Auth.
6.À4.1. Interrelation of mathematics
and physics in studying of the average speed. /M. Buchukhishvili,
T. Ghvinianidze/. Khandzta. – #2(7). – pp. 134-136. – geo.; res.:
eng., rus.
For the
successful solution of an inter-subject relation between mathematics,
physics, chemistry, biology and other disciplines, a considerable increase
in the scientific level of the instruction of mathematics at schools
is the prerequisite. When students at the lesson of mathematics become
acquainted with the arithmetic mean, geometric mean and median, also
with the average speed during the linear uniform motion, they may be
offered to solve such a physical problem, where the said mathematical
concepts should be applied. The article offers several versions of the
specific problem solution for calculation of the average speed, by standard
physical formulas and their specific mathematical interpretation.
Auth.
6.À4.2. Increase of interest in the teaching
of the math course in the professional direction. /K. Shvangiradze/. Khandzta. – #2(7). – pp. 144-146. – geo.; res.:
eng., rus.
The article
gives a number of concrete examples of applications being examined in the
course of mathematics. It is shown that in the course professionalism attention
is to be given to applications that are professionally directed. The formulation
of each application must be brief with the use of mathematical conclusions
and based on the concepts known to students. It is indicated that the
number of applications on each topic has to be strictly regulated so that
the course would not become a collection of applied problems. Te course
of mathematics for engineering students is noted to have a distinct professional
directivity that gives a visual idea about the role of mathematical
methods in their engineering training.
The professional directivity of teaching is shown to be the
most important mean of an increase in the interest of students in the
study of mathematics and as a means of an improvement in their mathematical
preparation.
Auth.
6.A4.3. On the problem of teaching mathematics: once again on logical and set-theoretical approach. /T.
Tetunashvili/. Science and Technologies. – 2009. - #7-9. – pp.19-28. – geo., res.:
eng., rus.
This article is concerned with the concept of teaching
contemporary mathematics and demonstrates the necessity of inclusion into the
teaching process with a higher dose and intensity of the material from set theory,
mathematical logic and discrete mathematics. It establishes basic principles
and approaches, the implementation of which will contribute to both better
mastering of the teaching material and effective use of the received knowledge
by students. The article considers some typical examples illustrating
significance of the aforementioned principles and approaches for the
mathematics study process.
Auth.
6.A4.4. Teaching of linear differential equations
with constant rates in mathematics. /K. Shvangiradze/. Novation. – 2009. – #5
– pp. 153-157. – geo., res.: geo., rus., eng.
The exercises solution methods under the theme “Linear Differential
Equations with Constant Rates” are described. Based on the proved rules, it is
shown that the problem of partial differentiation is reduced to the finding of
a fundamental system. In case the degree of equations is low and the type
of a partial solution is comparatively simple, the undetermined coefficient
method with direct embedding into initial equation is used. If the partial
solution is complicated and the degree of equations is high, the method of reducing
to a simplified equation is used. It is mentioned that the method of
variation of any constants will make it possible to easily find a partial
solution of an undetermined equation, although it is not always reasonable.
True, in all the cases when it is possible to easily find a partial solution
of undetermined equation, the general solution of the undetermined equation can
be easily obtained. For this purpose, the cases when the practical finding of a
partial solution of undetermined equation is possible have been studied. The
given method of the lecture and practical training course makes it possible
to restore the polynomial root order properties as well as complex number
operations when considering properties of the polynomial and its derivations.
Auth.
6.A4.5. Modern information technologies in
education. /M. Tsertsvadze/.
The concept of
electronic learning (e-learning) was created in the 90s of the 20th century,
together with the development of information and communications technologies. It
was a great demand for remote learning that conditioned the intensive
development of electronic learning. The first stage of electronic learning was
identified with technically “improved” form of remote learning, and electronic
learning was considered as a technological support to remote learning
(multimedia learning). The next stage of electronic learning was conditioned by
an increased demand for corporate learning that was connected with great financial
expenses, for it implied the on-spot training of the staff of companies and
corporations. At that stage, not only numerous learning materials and
electronic educational courses but also various electronic learning management
models were developed. The third stage of electronic learning is connected with
the elaboration of software systems and complex solution of electronic learning
problems. These systems include: teaching and methodological materials management
systems, testing systems, learning management systems, etc.
Auth.
5. Informatics/Computer
Science
6.A5.1. Highly stable
cryptographic system. /Z. Kipshidze, A.
Chaduneli, M. Chorkhauli/.Transactions of Technical University of
Georgia. - 2009. - #1(471). – pp. 63-67.
– geo.; res.: geo., eng., rus.
A
new method for cryptographic systems design has been elaborated. The nonlinear
element being used therein is almost devoid of any linearity sign. In applying
the system, its linearity degree reduces down to 0, 0003%, which is absolutely
neglected within further rounds of processing. This, in turn, highly increases the
system’s stability against all known cryptographic attacks. The system has adopted
all major advantages of the American standards DES and RIJNDAEL. The system’s ciphering
and deciphering process is identical and includes no symmetry to additions,
which significantly reduces the work spent on deciphering.
Auth.
6.A5.2.
Representation of orthogonal functions as uninterrupted signals. /T.
Giorkhelidze/. Transactions of
Issues
of generation of the orthogonal functions (polynomial functions) in the form of
uninterrupted signals are often raised when solving various scientific research
tasks, particularly those of mathematical physics. Orthogonal polynomial
functions are topical and widely applied in the case of approximation of
signals represented in various analogous and discrete forms. Laguerre,
Legendre, Hermite, Chebyshev and other orthogonal polynomials are widely
applied in practice. Our objective is to elaborate simple and relatively
precise methods of simultaneous generation of orthogonal polynomials as
uninterrupted signals. This is discussed in detail on the example of the
Hermite polynomials. The obtained result allows constructing a simpler and more
precise scheme on integrating operational amplifier, different from the
existing ones. This scheme requires application of only a single operational amplifier
to generate the next orthogonal polynomial.
Auth.
6.À6.1. The cultural-political transformation
under the conditions of transitional dynamicity. /T. Gogberashvili/.
Khandzta. – #2(7). – pp. 67-71. – geo.;
res.:
eng., rus.
The realization
of contemporary democratic transit depends on the transformation of
political culture. The elements of political culture are formed
over a long historical period. They represent a traditionally formed
way of life and include stereotypes. Their changing requires certain
time. The cultural-value transit is a change of epochal importance,
which implies substantial changes in mentality, thinking and behavior.
The goal of the cultural-political transformation is to realize political
changes, the task of which consists in the strengthening of the democratic
political culture.
Auth.
6.À6.2. The role of language in intercultural communication. /M. Bakradze/. Khandzta.
– #2(7). – pp. 81-84. – geo.; res.:
eng., rus.
The purpose
of this article is to define the role and function of a language in
intercultural communication, where the interaction of language and
culture is clearly outlined. As already
known, common cultural values facilitate communication, while the uncommon
ones complicate it. This is especially evident during communication
between people of different cultural background, being known as intercultural
communication. The role of language in intercultural communication
is understood as a tool realizing forms of lingual activity through which
information is being communicated to the native or foreign language. Recent
researches tend to frequently use the notion of ‘mentality’ instead that of
‘national character’, which definition in the German language differs from the
Georgian equivalent. Thought, sensation and wish are the tree components that
define the meaning of this word. The present article briefly describes such
terms as ‘lacuna’, ‘egsotism’, ‘ethnographism’, which symbolize a
foreign culture, whereas the ‘lexical
background’ is treated as a peculiar ambit between language and culture.
Auth.
B1.
Mathematics. Mechanics. Physics. Cybernetics
6.B1.1. On one algorithm of transformation of
qualitative parameter values into quantitative values in the pattern
recognition problems. /N. Tkemaladze, G. Mamulashvili/. Science and
Technologies. – 2009. - #7-9. – pp.4-7. – geo., res.: eng., rus.
The algorithm of transformation of qualitative
parameter values into quantitative values is proposed. Four characteristics of qualitative
parameter (feature) values are determined. The measures of self-descriptiveness
of these features and consequently parameter quantitative values are determined
on the basis of these characteristics. Importance of this transformation in
the pattern recognition problems is indicated.
Auth.
6.B1.2. Study of natural phenomenon of Zurab
Bedia as a basis of study of future high technologies. /T.
Tsivtsivadze, V. Chavchanidze, N. Chigogidze, R. Kldiashvili, R. Skhiladze, G.
Sulakvelidze, L. Kadagishvili/. Science and Technologies. – 2009. - #7-9. –
pp.8-12. – geo., res.: eng., rus.
The article is dedicated to the theoretical and
applied aspects of research of the natural phenomenon of people like Zurab
Bedia. Earlier attempts to study bioelectrical fields of live systems are considered.
Studied are the mechanisms of generation of these fields and their
characteristics and parameters that are of great scientific and practical
importance. The obtained results can be used to design a portable device - the
analyzer of external fields of live organisms, so-called biometer. The making of
such a device will be of invaluable assistance in medical forecasting of
pathologies of a particular organism.
Auth.
6.B1.3.
Study of distribution of an electric field in a rotary ionizer. /G.
Tskhomelidze/. Transactions of
The
distribution of an electric field of high intensity in a rotary ionizer is
considered. The effect of the applied voltage values and of polarity on the
critical electric field voltage is studied. It is shown that distribution of a
field in the given ionizer is distinctly not uniform and required further
research, the expediency of which is outlined and corroborated in the articles.
Auth.
6.B1.4. Determination
of the maximum hook speed of hoisting gear. /M. Tsereteli,
The
work deals with the determination of the maximum hook speed of hoisting gear. Based
on technological processes, a method enabling to determine the length of
hoisting cycle, the most suitable weight of the cargo to be hoisted, the speed
multiplier value and the optimal maximum speed of the cargo movement has been
given according to the preliminary known yearly performance and the hoisting
height.
Auth.
6.B1.5. On
the concept of relativistic mass. /V. Meladze, V. Kvintradze/.
Transactions of
Based
on fundamental formulas of classical physics, proposed is the solution of the
well-known formula of relativistic mass – mass of a moving body, as a function
of velocity, earlier introduced into the theory of relativity by theoretical
reasons. It is shown that any mass, independently of its origin, should change
according to this formula. This formula has been found to become the basis of
the theory, according to which the mass of a body depends on its velocity. In
contrast to Faynman formula, the authors’ derivation of the formula is based on
deep physical content.
Auth.
6.B1.6.
Methods of calculation of axisymmetric vibrations of plates. /Z.
Bichiashvili, J. Bichiashvili, G. Sichinava/. Transactions of
This
work is dedicated to the development of methods of calculation of round and
circular plates for axisymmetric vibrations. Discussed is the problem of
calculation of own axisymmetric harmonious vibrations of plates located on both
free and Winkler elastic bases, taking into account the movement along the
symmetry axis of a plate, gyrating mass inertia, tensile, (compressive deformation),
shear and bend strains, also the longitudinal strain effect. The methods are
based on the Kirchhoff's hypothesis
with the difference that the straight-line elements of a plate may, after the
plate’s deformation, no longer be normally deformed in respect of the
intermediate surface. The plate’s material is elastic and obeys the Hooke’s law.
The plate deformation being insignificant, the approximate expressions for the
curvature can be used. The methods are designated for computer-aided application.
Auth.
6.B1.7.
The conflict of basic laws of thermodynamics in isolated systems and kinetic
energy of relative motion. /A. Aptsiauri/. Georgian Scientific News. –
2009. - #3. – pp. 7-13. - rus.; res.: geo., eng., rus.
By
an analysis of processes taking place in isolated systems with real physical
properties it is shown that the known principle of steady growth of entropy and
disorder owing to internal dissipation processes leads infringement of the law
of energy conservation and, conversely, the meeting of the requirements of the
First Law runs contrary to the Second Law that reveals itself in a reduction of
entropy in certain processes. It is shown that explanation of such strange
phenomena requires that the kinetic energy of relative motion, which plays the
role of energy accumulator, be taken into account in the first and second laws.
Auth.
6.B1.8. Efficiency
paradox of thermodynamic cycles interfaced by intermediate heat storage. /A.
Aptsiauri/. Georgian Scientific
News. – 2009. - #1. – pp. 8-15. - eng.; res.: geo., eng., rus.
Based
on an analysis of direct and reversible cycles of thermal installations, it is
shown that if the body cooling process in a thermal pump cycle is associated
with temperature and the taken off heat accumulates in the intermediate body at
a temperature exceeding the average temperature according to gas entropy in the
course of cooling, then, together with the thermal engine cycle, the possibility
of taking of thermal or mechanical energy from the environment is created. Practical
implementation of the said processes in accordance with the given man-made
assumption requires that the thermal and mechanical resistance of physical
bodies be overcome, which is quite realizable.
Auth.
6.B1.9. Iononspheric
glow caused by electronic beams. /T. Adeishvili, J. Lominadze, G.
Managadze/. Georgian Scientific
News. – 2009. - #1. – pp. 15-19. - eng.; res.: geo., eng., rus.
The
work discusses photometric results of the ionosphere glow at a line λ=5577 Å occurred
at the moment of the electron beam injection from the rocket into the earth
ionosphere. The gradual increase of the glow intensity during impulses was conditioned
due to accumulation of the energy of excited states of N2(A3Σ+u), O2(C'Σ−u) and O('S) during
their lifetime. The large disturbed zone in the near-rocket environment
(size≥500m) is connected via the interaction of ions accelerated in the
rocket potential field with ionospheric components. The glow intensity
modulation is observed at a height of ~ 98,9km during the beam-plasma discharge
(BPD). The height profile of the glow intensity revealed two maxima of heights
of ~103 km and ~115 km.
Auth.
6.B1.10. Calibration
of building materials’ humidity and density meter and two-frequency method
error estimation. /A. Khurtsilava, K. Tukhareli, M. Maisashvili/.
Georgian Scientific News. – 2009. - #1. – pp. 33-37. - rus.; res.: geo., eng., rus.
The
work deals with an experimental design method for calibrating a humidity and
density meter and the attempt of error estimation of two-frequency method while
determining humidity and density of building materials. The method is shown to
provide for reducing the calibration labor-intensiveness and obtaining a generalized
dependence for a specific material, independently from the humidity meter and
its transducer. It is established that in order to increase accuracy,
measurement is to be limited to two channels with frequency division of the channels
into optimum frequencies and compensation for the material’s through
conductivity.
Auth.
6.B1.11.
Equivalent circuit of physical model of high-frequency transmission lines. /O.
Zivzivadze, L. Zivzivadze/. Georgian Scientific News. – 2009. - #1. – pp.
54-57. - rus.; res.: geo., eng., rus.
Questions
related to problems of physical simulation of high-frequency power transmission
lines are discussed. A circle of tasks, the solution of which is possible on
such class models, is considered. An equivalent circuit of the model, in which by
certain parameter (GRC – radiation conductivity) the radiating ability of the model
provided for and the circuit is considered fit for calculating the processes
taking place in the model, has been developed. The radiation conductivity expressions
are deduced for the most complex (difficult) in terms of radiation idle mode. To
obtain analogous parameters under load conditions, it is necessary that the
expressions of radiant power for load conditions rather than those of the idle
mode be taken into consideration. The proposed equivalent circuit s universal
and allows calculating steady-state conditions of high-frequency lines adjusted
for radiation
Auth.
6.B1.12.
Maxwell’s Demon and groundlessness of its criticism. /A.
Aptsiauri/. Georgian Scientific News. – 2009. - #2. – pp. 7-14. - rus.; res.: geo., eng., rus.
The
article deals with the basic works in which authors try to prove groundlessness
of Maxwell’s well- known idea on sorting fast and slow molecules of gas without
physical energy consumption and about the possible thermodynamic imbalance in
of violation the Second Law of Thermodynamics. It is shown that the opposing
views of the above are incorrect. Moreover, the elementary model of a thermal
heat converter is referred to as an example that contradicts the Second Law in
support of Maxwell’s Demon.
Auth.
6.B1.13. On
dynamic solutions of boundary-value problems of the generalized theory of
couple-stress thermodiffusion solved in quadratures. /M.
Chumburidze/. Georgian Scientific News. – 2009. - #2. – pp. 46-49. - eng.; res.: geo., eng., rus.
The
work considers the basic dynamic homogeneous system of partial differential
equations of generalized Green-Lindsay couple-stress thermo-diffusion on the
plane for homogeneous, isotropic elastic media with the centre of symmetry.
Effective solutions of boundary problems for a half plane when on border are
given: the component of normal displacement vector, the touching component of
vector of tension, rotations, flow of heat and flow of diffusion
Auth.
6.B1.14. Boundedness criterion
for the Cauchy singular integral operator and maximal functions in weighted
grand Lebesgue spaces. /V. Kokilashvili/.
The necessary and sufficient condition for the Cauchy
singular integral and Hardy-Littlewood maximal function defined on the Carleson
curves to be bounded in weighted Grand Lebesgue Spaces are presented.
Auth.
6.B1.15. On a probability
problem of Lewis Carroll. /N. Vakhania/.
The solution of the general version of Lewis Carroll’s
probability problem No. 72 for any number of black or white counters initially
in the bag, and any number of non-random black or white counters that could be
put into the bag in addition are given. The result for the general version is
given as formula (4).
Auth.
6.B1.16. On the almost
everywhere convergence and partial sum’s majorant of series with respect to
block-orthonormal systems. /G. Nadibaidze/.
In the present paper the behaviour of partial sum’s
majorant of series with respect to blockorthonormal systems is considered and
the estimates for partial sum’s majorant are established.
Auth.
6.B1.17. Convergence
properties of φ -summing operators. /V. Tarieladze,
Ricardo Vidal/.
By means of a sequence φ⋅=(φn )nªN of square-integrable functions, not necessarily
orthonormal, on a positive measure space (Ω ,v ) a notion of a φ⋅
-summing operator can be defined. We show that the
class Πφ. ( X, Y) of all
φ⋅ -summing
operators acting between Banach spaces X,
Y is non-trivial iff φ⋅ is a 2-
dominated sequence. It is shown also that if φ⋅
is a 2-dominated sequence, then every 2-summing
operator is φ. *-summing.
Auth.
6.B1.18. On the investigation
of one-dimensional models for thermoelastic beams. /G. Avalishvili, M. Avalishvili/.
In the present paper an initial-boundary value problem
for thermoelastic beam is considered. Three-dimensional dynamical problem for
beam with clamped upper butt end and surface forces given along the remaining
part of the boundary is reduced to a hierarchy of one-dimensional problems. The
obtained problems are investigated in suitable function spaces, the convergence
of the sequence of vector-functions of three space variables, restored from the
solutions of one-dimensional problems, to the solution of the original
three-dimensional problem is proved and the rate of approximation is estimated.
Auth.
6.B1.19. On one mathematical
model of the linear oscillator. /G.
Gabrichidze, D. Giorgadze, G. Kapanadze/.
One mathematical model of the oscillator analysis is
given in the paper, which is based on the assumption that under the pulse force
(impulse) action on the oscillator, excitation of the reaction force in the
spring (linkage) occurs with an insignificant delay in time. The oscillator
motion is represented by differential equations with delayed argument. It is
established that the oscillator motion is complex mechanical vibration with
damping feature.
Auth.
6.B1.20. Pattern of changes in
equivalent rigidity of nonlinear mechanical systems. /L. Gavasheli/.
The theoretically predicted and experimentally
determined regularity of change of the equivalent rigidity of nonlinear
elements, when connected in series in static and dynamic systems is studied.
Auth.
6.B1.21. Magnetic field
dependence of A → B phase transition
temperature in superfluid 3He. /G. Baramidze, G. Kharadze/.
The magnetic field dependence of the A→B transition
temperature TAB in
superfluid 3He is
considered in order to take into account the linear-in-field contribution. In
the high field region, where the quadratic-in-field contribution prevails, the
well-known answer is restored. On the other hand, it is pointed out that the
Fermi liquid effects shift the observability of the linear-in-field region to
rather low magnetic fields.
Auth.
6.B1.22. Determination of the
laws and mechanisms of degradation of thermoelectric properties of
silicon-germanium alloys during irradiation in reactor. /G. Bokuchava, A. Guldamashvili, V. Gverdtsiteli, G. Darsavelidze, T.
Nebieridze, A. Sichinava/.
Experimental results of relative growth of specific
electric resistance and of thermo-emf coefficient in highly phosphorus- and
boron-doped silicon-germanium alloys during their irradiation in a reactor were
analyzed and generalized. The mechanism and generalized description of the laws
of thermoelectric parameters degradation in reactor-irradiated n- and
p-Si0.7Ge0.3 alloys are offered. The study is conducted within the bounds of
the model of various damaging irradiation doses and changes in the target
composition, and thus within the framework of various damage abilities and
degradation of the alloy parameters.
Auth.
6.B1.23. Temperature
dependence of hydrogen mobility in ordering rare-earth dihydrides. /I. Ratishvilii,
The rare-earth ordering dihydrides are considered. The
influence of ordering processes on the mobility of interstitial H-atoms is
investigated. It is shown that those H-H interactions which induce formation of
ordered superstructures in the hydrogen sublattice, provide as well the
increment of the dwell time of the moving particles. The latter effect can be
interpreted as a “weighting” of mobile H-atoms. The influence of the
“particle-weighting effect” on the temperature dependence of the dipole-dipole
interaction induced nuclear spin-lattice relaxation time is examined. It is
shown that although the corresponding changes in the T1d(T) curve
are remarkable, their influence on the total T1(T) dependence,
determined as well by interactions of nuclear spins with conduction electrons,
is negligibly small.
Auth.
6.B1.24. Thermophysical
calculation of cryosorption pumps. /G.
Dgebuadze, L. Tsakadze/. Georgian National Academy of Sciences. – 2009. – v. 3.
- # 3. - pp. 70-75. – eng., res.: geo.
A physico-mathematical model of the process of
evacuation by means of a cryosorption pump CSP-0.25D is developed. It includes modelling
of exchange processes in heat removing elements and adsorption space,
mass-exchange processes in the grains of the adsorbent and molecular flows in
the canals of the pump.
Auth.
6.B1.25. Configuration spaces of planar
polygonal linkages. /E. Elerdashvili/.
We present several observations about the critical
points of the signed area function on configuration spaces (module spaces) of
planar quadrilateral linkages. An effective method of counting critical points
in question is described which yields comprehensive results for generic
quadrilaterals and reveals a number of curious phenomena. In particular, it
turns out that critical points of area are typically provided by the so-called
circular (cyclic) configurations of quadrilaterals. Our approach permits to
effectively calculate the number of circular configurations of a given quadrilateral
linkage as well.
Auth.
6.B1.26. Nonequlibrium treatment of ZnO layers implanted by N. /T. Butkhuzi, M. Sharvashidze, T. Khulordava,
E. Kekelidze, N. Gapishvili, L. Aptsiauri, N. Bukhsianidze,
L. Trapaidze, R. Melkadze, Sh. Mirianashvili, T. Qamishadze, L. Gapishvili,
M. Tigishvili/. Nano Studies. –
2010. - #1. – pp.5‑9. – eng., abs. eng.
In order to obtain the p‑type impurity
conduction, ZnO layers were implanted by N+ ions with concentration
1019 cm−3 at energy 110 keV, implantation
dose 1015 cm−2, and current density 15 mA / cm2.
Healing of the radiation defects created in implanted ZnO crystals was carried
out by radical beam quasi-epitaxy (RBQE) in the atmosphere of active oxygen
radicals (
oC, 
h, 
cm−3). As a result we obtained ZnO:N
epitaxial layers. According to the measurements with van der Pauw
method the holes mobility, their concentration, and layers’ resistivity were
found as 23 cm2 / V × s,
5 × 1016 cm−3
and 5.4 W × cm,
respectively. In photoluminescence (PL) spectra of ZnO:N, the maxima were
observed at 371.5, 381.2, and 387.4 nm. Analysis shows that 371.5 nm
links to acceptor-bound exciton (AoX) related to the nitrogen acceptor,
381.2 and 387.4 nm link to NO and donor–acceptor pear (DAP)
emissions, respectively.
Auth.
6.B1.27. Regulation of defect creation in ZnO p‑type films by RBQE method. /T. Butkhuzi, M. Sharvashidze,
T. Khulordava, E. Kekelidze, N. Gapishvili, L. Aptsiauri,
N. Bukhsianidze, L. Trapaidze, R. Melkadze, L. Gapishvili,
M. Tigishvili, Sh. Mirianashvili,
T. Qamushadze/. Nano Studies. –
2010. - #1. – pp.11-18. – eng., abs. eng.
We have investigated
ZnO layers obtained by the radical beam quasi-epitaxy (RBQE) method. By the
RBQE technological method p‑type ZnO epitaxial layers were obtained at ºC. Hall measurements performed at T=77 and
300 K. Resistivity was measured as 5 × 10−2 and
3.1 × 10−3 Ω × cm at 77
and 300 K, respectively. At 77 K, the holes concentration and
mobility was 5 × 1018 cm−3 and
22 cm2 / V × s becoming
8 × 1018 cm−3 and
250 cm2 / V × s at
300 K. In the photoluminescence (PL) spectrum of p‑type ZnO layers
at λ=369.1, 374.5, 383.5, 392.5
and 401 nm, bands are observed and identified (at 70 K). Here we show
that the RBQE technology gives to control electrical and optical properties of
ZnO samples.
Auth.
6.B1.28. Originality of technological processes of RBQE method. /T. Butkhuzi, T. Khulordava, M. Sharvashidze,
E. Kekelidze, N. Gapishvili, L. Trapaidze, L. Aptsiauri/.
Nano Studies. – 2010. - #1. – pp.19-25. – eng., abs. eng.
Original method,
which enable us to create new quasiepitaxial layers on the surface of binary
compound like that on the basic crystal have been elaborated. This method was
called radical beam quasi-epitaxy (RBQE). In our case RBQE method enables us to
obtain single crystalline layers of ZnO on the basic crystal of ZnSe. But
generally it might be use for other binary compounds. For the confirmation of
mechanism of defects creation under RBQE we carried out following experiment.
We have obtained new layers of ZnO on the ZnSe basic crystal preliminary
implanted by oxygen under RBQE (300-800oC). Then, we studied
electrical and optical properties of new quasiepitaxial ZnO layers and of ZnSe
basic crystals. New quasiepitaxial layers of ZnO are characterized by n‑type,
stoichiometric, or p‑type conductivity, which depends on the treatment’s
temperature. According to thermo-EMF measurements of ZnSe basic crystal, pre-surface
layers always have p-type conductivity after RBQE treatment. In the PL spectra
of implanted and nonimplanted ZnSe basic crystals it was observed identical
bands, with one difference: in the PL spectrum of implanted ZnSe additionally λ=580
nm bands were observed, which must be connected to the existence of oxygen in
the ZnSe.
Auth.
6.B1.29. Characters of native defects in p‑type ZnO. /T. Butkhuzi, M. Sharvashidze,
T. Khulordava, N. Gapishvili, E. Kekelidze, Kh. Gelovani,
L. Aptsiauri, N. Bukhsianidze, Sh. Mirianashvili,
T. Qamushadze L. Trapaidze, R. Melkadze, L. Gapishvili,
M. Tigishvili/. Nano Studies. –
2010. - #1. – pp.27-33. – eng., abs. eng.
This paper reports on
a new original method of radical beam quasi-epitaxy (RBQE), which enables us to
obtain purest monocrystalline ZnO with p‑type conductivity. We
investigated electrical and optical properties of the p‑type ZnO crystals
obtained with the RBQE method. The photoluminescence (PL) spectrum of p‑type
basic sample of ZnO contains exciton area (367 – A‑exciton, 369 – bound
exciton, 374 nm – phonon replicas of A‑exciton); 385 and 395 nm
lines; and a non-structural line with maximum on 510 nm. In the PL spectra
of new grown layers of ZnO was observed the peaks at 395 and 460 nm, while
intensity of 510 nm lines was significantly reduced.
Van der Pauw method was used for investigation of electrical
properties of p‑type ZnO layers. The basic p‑type ZnO had holes
concentration of 1012 cm−3, mobility
3.4 cm2 / V × s and resistivity 1.8 × 106 W × cm. The new p‑type
ZnO layers had parameters 1015 cm−3,
14 cm2 / V × s and 4.5 × 102 W × cm,
respectively.
Auth.
6.B1.30. Investigation of ZnS and ZnO compounds implanted by S ions. /T. Butkhuzi, M. Sharvashidze,
T. Khulordava, N. Gapishvili, E. Kekelidze, Kh. Gelovani,
L. Aptsiauri, N. Bukhsianidze, Sh. Mirianashvili,
T. Qamushadze, L. Trapaidze, R. Melkadze, L. Gapishvili,
M. Tigishvili/.
Nano Studies. – 2010. - #1. – pp.35-41. – eng., abs. eng.
The obtaining of p‑type
conductivity in ZnS and ZnO semiconductors depends on the critical temperature
Tct. By treatment above this temperature it is impossible to obtain
p‑type conductivity. The doping of ZnS and ZnO samples was carried out
with S+ ions. Unfortunately, the temperature of annealing the
radiation defects exceeds Tct, due to which the effect can not be
obtained (in ZnO). In our experiment we took into account factor of Tct.
Both Ar+ inert gas and S+ ions were implanted in ZnS and
ZnO n‑type samples (ρ=102-103 W × cm) at energy
150 keV and dose of implantation from 1014 to 1016 cm−2.
The range of current density was from 0.3 to 5 mA / cm2. The subsequent heat
treatment of doped samples was carried out over the temperature range from 300
to 500 ºC in vacuum and saturated S2 vapor. The p‑type
ZnS samples were obtained by implantation of Ar+ and S+
ions (current density (0.3 − 5) mA / cm2) under subsequent heat
treatment at (420 − 460) °C in S2 saturated vapor. When ZnO was
implanted with Ar+ and S+ ions (with heat treatment in O2
atmosphere at temperature from 300 to 350 °C) n‑type samples were obtained with resistivity
(109 − 1010) and (1010 − 1011) W × cm,
respectively.
Auth.
6.B1.31. Preparation of Ho5Sb3 thin films and
their electro-physical properties. /Z.Jabua, I.Kupreishvili, A.Gigineishvili, T.Bzhalava/. Nano Studies. –
2010. - #1. – pp.43-46 – eng., abs. eng.
The technology for
preparation of Ho5Sb3 thin films was developed. The
samples were prepared by vacuum thermal evaporation from two independent
sources of Ho and Sb. Films had a hexagonal lattice with parameters a=8.85 and 6.24
Å. Temperature dependence of the specific resistivity, Hall constant and
thermo-EMF coefficient of these samples were measured in the temperature
interval from 100 to 700 K. Based on these measurements the basic
electro-physical parameters carriers mobility and concentration were determined
in the one-band approximation. Obtained results reveal that Nd5Sb3
is a semi-metallic compound.
Auth.
6.B1.32. Physical nature of size-dependence of nano-particles
properties. /A. Gerasimov/. Nano
Studies. – 2010. - #1. – pp.47-96. – geo., abs. eng.
Here we suggest novel
conceptions argued both theoretically and experimentally those are possible to
give us an explanation of any experimental fact obtained in solids. In present
work based on above mentioned conceptions there are explained mechanism of
changes in size-dependent lattice constant, Debye and melting temperatures,
mechanical properties, diffusion coefficient, heat capacity and heat
conductivity of nano-particles.
Auth.
6.B1.33. Scattering of electrons in n‑Si
crystals irradiated with protons by nanoscale inclusions. /T.Paghava, N.Maisuradze/. Nano Studies. – 2010. - #1. – pp.97-102. – eng., abs. eng.
The aim of this study
was to gain insight into the effect of irradiation with 25 MeV protons on
the Hall mobility of electrons in n‑Si crystals. Irradiated crystals with
an initial electron concentration 6 × 1013 cm−3
were studied using the Hall method in the range of temperatures
(77 − 300) K. The studies showed that, in crystals
irradiated with the proton dose Φ=8.1·1012 cm−2,
the effective mobility of conduction electrons μeff increases
drastically. This effect is direct evidence that nanoscale inclusions with
relatively high conductivity and with nonrectifying junction at interfaces with
semiconductor matrix are predominantly formed in n‑Si crystals under
these conditions. Agglomerations of interstitial atoms or their associations
can represent such nanoscale inclusions.
Auth.
6.B1.34. Atoms constituting nanosystems:
Quasi-classical parameterization for binding energy and electronic structure
calculations. /L. Chkhartishvili, T. Berberashvili/. Nano
Studies. – 2010. - #1. – pp.103-144. – eng., abs. eng.
Within the
semiclassical approach, intra-atomic electric-charge-densities and
electric-field-potentials are parameterized and tabulated in form of radial
step-like functions. In binding energy and electronic structure calculations
performed for nanosystems, their superpositions serve as good initial
approximations of the inner charge-density and potential distributions.
Auth.
6.B1.35. Large enhancement of the
thermoelectric figure of merit in a ridged quantum well.
/A. Tavkhelidze/. Nano Studies. – 2010. - #1. – pp.145-154. – eng., abs.
eng
Recently, new quantum
features have been observed and studied in the area of ridged quantum wells
(RQWs). Periodic ridges on the surface of the quantum well layer impose
additional boundary conditions on electron wave function and reduce the quantum
state density. As a result, the chemical potential of RQW increases and becomes
ridge height dependent. Here, we propose a system composed of RQW and an
additional layer on the top of the ridges forming periodic series of p+−n+
junctions (or metal−n+ junctions). In such systems, charge
depletion region develops inside the ridges and effective ridge height reduces,
becoming a rather strong function of temperature T. Consequently, T‑dependence
of chemical potential magnifies and Seebek coefficient S increases. We
investigate S in the system of semiconductor RQW having abrupt p+−n+
junctions or metal−n+ junctions on the top of the ridges.
Analysis made on the basis of Boltzmann transport equations shows dramatic
increase in S for both the cases. At the same time, other transport
coefficients remain unaffected by the junctions. Calculations show one order of
magnitude increase in thermoelectric figure of merit ZT relative to the bulk
material.
Auth.
6.B1.36. Observation of new quantum
interference effect in solids. /A. Tavkhelidze,
A. Bibilashvili, L. Jangidze, A. Shimkunas, Ph. Mauger, G.F. Rempfer, L. Almaraz, T. Dixon,
M.E. Kordesch, N. Katan, H. Walitzki/. Nano Studies. – 2010.
- #1. – pp.155-160. – eng., abs. eng
In order to achieve
quantum interference of free electrons inside a solid, we have modified the
geometry of the solid so that de Broglie waves interfere destructively
inside the solid. Quantum interference of de Broglie waves leads to a
reduction in the density of possible quantum states of electrons inside the
solid and increases the Fermi energy level. This effect was studied
theoretically within the limit of the quantum theory of free electrons inside
the metal. It has been shown that if a metal surface is modified with patterned
indents, the Fermi energy level will increase and consequently the electron
work function will decrease. This effect was studied experimentally in both Au
and SiO2 thin films of special geometry and structure. Work function
reductions of
Auth.
6.B1.37. On the non-thermal mechanism of
melting of thin layers of semiconductors. /N.Dolidze, Z.Jibuti, B.Tsekvava/. Nano Studies. – 2010. - #1. –
pp.161-165. – eng., abs. eng
This paper presents a
theoretical model of low temperature melting of a crystal at pulse laser
annealing as the electronic mechanism of attenuation and isotropization of
chemical bonds between its atoms. The formula is derived for critical concentration
of anti-bonding quasi-particles – electrons in the conduction band and holes in
the valence band, under the increase of which a low temperature melting of the
semiconductor on the electronic mechanism must be occurred.
Auth.
6.B1.38.
In this paper the
effect of ion implantation on the exciton absorption in n‑Ge thin layers
was studied. It is shown that the observed decrease in the absorption
coefficient, broadening of the exciton peak, and its shift toward higher
energies are caused by the electric and compression fields generated by the
radiation-induced defects.
Auth.
6.B1.39. Analysis and
synthesis of vibrational processes in machines with many degrees of freedom
with allowance for nonlinearity of elastic properties of nonlinear friction
links and forces. /R. Adamia, B. Bandzeladze, Z. Nadiradze/.
Novation. – 2009. –
#5 – pp. 11-20. – geo., res.: geo., rus., eng.
Problems
of analysis and optimization synthesis of vibration transients in twisters
with many degrees of freedom with allowance for nonlinearity of elastic
linkages of machines and nonlinear friction forces are given and handled. For
analysis and solution of non-linear differential equations depicting
the movement of mechanical systems, asymptotic methods of the theory of
nonlinear vibrations are employed. As a result of the solution of the first
approximation of systems of nonlinear differential equations, criteria
determining stability regions of self-oscillating modes are obtained. The obtained
results allow several stationary solutions: 1) a trivial solution when
the vibrational amplitude is of minimum value and there are no self-excited
oscillations; 2) one-frequency self-oscillating modes and conditions of
their onset; 3) double-frequency oscillatory modes and expressions to
determine their onset.
Auth.
6.B1.40. Mathematical model of field
tests conducting. /M. Buchukhishvili, T. Ghvinianidze,
V. Kvantidze/. Novation. –
2009. – #5 – pp. 68-73. – geo., res.:
geo., rus., eng.
In the technological
processes and generally in any scientific sphere there are known several
types of field tests and besides some of them can be conducted under the
artificial conditions wherein we can control the factors being investigated.
There is presented in a given article on a concrete example the mathematical
vision of testing conducted under the field conditions. In particular,
the task has been set as follows: “it is necessary to determine the distribution
of plants over the specific area in compliance with their heights”. The
method of solution of indicated problem was developed analytically
relying on concrete data. In particular, number of tested plants was
classified in compliance with their heights, determines their medium
height and number of them in each class, mean deviation and the method
of solution of the problem indicated was developed analytically,
relying on concrete given. In particular, a quantity of tested plants
was distributed to the classes on their increase, was determined their
medium height and quantity according to the class, standard and quadratic
deviation. Using the well-known formulas we have performed mathematical
data processing. Accordingly, there was determined the constant of variation
V% and testing accuracy m%. By means of such calculations
we have determined the optimum possibility of distributing the
plants over the specific area and concluded that it can be carried to the
area of any size.
Auth.
6.B1.41.
On general solutions of first-order nonlinear matrix and scalar ordinary
differential equations. /G. Kharatishvili/. Bulletin of the
This
article contains the formulae of general solutions for particular classes of
first-order nonlinear matrix and scalar ordinary differential equations.
Auth.
6.B1.42. On some goodness-of-fit tests based
on kernel type wolverton-wagner estimates. /E. Nadaraia, P.
Babilua, G. Sokhadze/. Bulletin of the
A
goodness-of-fit test is constructed by using a Wolverton-Wagner distribution
density estimate.
The
question as to its consistency is studied. The power asymptotics of the
constructed goodness-of-fit test is also studied for certain types of close
alternatives.
Auth.
6.B1.43. Cyclic configurations of spherical
quadrilaterals. /G. Giorgadze, G. Khimshiashvili/.Bulletin of the
Georgian National Academy of Sciences. – 2009. – vol.3. - # 2. – pp. 19-22. –
eng.; res.: eng., geo.
We
investigate cyclic configurations and moduli spaces of spherical
quadrilaterals. For nondegenerate quadrilateral linkage, we establish that
cyclic configurations are critical points of the signed area function on moduli
space and their number is determined by the topology of moduli space. We also
find the maximal value of the signed area on moduli space.
Auth.
6.B1.44.
Constructive method for the recognition of patterns. /Z.
Kipshidze, A. Chaduneli, G. Ananiashvili, G. Ghlonti/. Bulletin of the
On
the basis of Coding theory universal methods for recognition of patterns and
clustering are elaborated, providing an adoption of realization of patterns to
the set of target class, i.e. recognition of patterns and division of the set
of realization into clusters.
Auth.
6.B1.45.
Analysis of priority queuing system for replacements and renewals. /R.
Khurodze, R. Kakubava, D. Gulua/. Bulletin of the
The
article considers a closed queuing system for service of replacement and
renewal operations. Replacement has absolute priority regarding renewal.
Replacement time and renewal time are exponential random variables. Graphic
system is constructed for two-dimensional random processes, hence the linear
system of algebraic equation expressing the final state of the system is
written directly. With the help of the proposed graphic scheme the calculation
formulas of final probabilities of system states are received in explicit form.
Auth.
6.B1.46.
On one iteration algorithm of investigation of the nonlinear problem of
oscillation of a system of constrained particles under strong dynamic load. /G.
Gabrichidze/. Bulletin of the
The
solution of the problem mentioned in the title demands that the formation of a
defining system of algebraic equations and its solution be repeated at each
discrete time interval. The paper proposes a special iteration algorithm by
which the formulated equation can be solved by a simple operation of
multiplication of matrices and vectors. The conditions for the iteration
process convergence are formulated. The proposed iteration algorithm can be
considered as the description of the process of motion of a system of particles
in a medium in which the position and motion of particles obey non-stationary
geometrical conditions, in particular with time delay.
Auth.
6.B1.47. A
new express monitoring method and diagnostic device for determining the
efficiency of an automotive brake system. /R. Chabukiani, T.
Dvalishvili/. Bulletin of the
The
paper deals with a new express monitoring method and a respective diagnostic
device
designed
for efficient performance of an automotive brake system which ensures in a
short period of time, 20-25 seconds, determination of the serviceability of the
brake system. The method and the device make it possible to establish and
exercise regular monitoring of the brake system and exclude the putting in
operation of an automobile with a faulty brake.
Auth.
6.B1.48.
Study of the absorption signal in the flame of the burner with ring-shaped slot
for atomic-absorption spectrometry. /A. Rcheulishvili, Z.
Rostomashvili, K. Tsakadze/. Bulletin of the
In
this article, the original structure of a burner with ring-shaped slot for
atomic-absorption spectrometer (AAS) is considered. This burner forms the
lateral cylindrical flame with the length limited by the screen and the air
stream. The beam from the light source to the monochromator passes through the
ringshaped slot and coincides with the symmetry axis of the cylinder, formed by
the flame. We offer the method of calculation of the absorption signal (the
number of studied atoms in the absorption zone) at raying of the flame parallel
to the velocity of air flame, when the process is stationary and the transverse
shift of the absorbing atoms in the flame takes place only due to diffusion.
The absorption signal dependence on such parameters as ring-shaped slot radius,
flame length, the flame air velocity and the distance between the light beam
and the center of the ring-shaped slot was studied. It is shown that absorption
signal increases with increase of the flame length, decrease of the ring-shaped
slot radius and the flame air velocity. From the obtained results, we may
conclude that the design offered by us allows effective concentration of
absorbing atoms in the absorption zone. The absorption signal (sensitivity)
sharply increases compared with common slot burners in the same conditions. The
device has reserves for further increase of the absorption signal. The burner
also allows increase of the absorption signal, when it is used as a “pulsed
vaporizer-flame” type atomizer. At this, it is possible to detect hardly
atomized elements as there is no need of application of nickel or quartz tube,
which is successfully replaced by cylindrical flame.
Auth.
6.B1.49.
Electrical prospecting in Dmanisi settlement area of the oldest Eurasian
hominids. /T.
Chelidze, M. Jakhutashvili, G. Kutelia, G. Tabaghua/. Bulletin of the
The
purpose of the study was to establish the efficiency of electrical prospecting
methods on the
Auth.
6.B1.50. Non-Linear sums of mathematic
programming. /G. Kirmelashvili, L. Beridze/. Building. – 2010. - #1.
- pp. 36-44. – geo.; res.: geo., rus.,
eng.
Mathematic models of
appropriate linear and non-linear programming are applied in performing
construction activity, repair work, production manufacturing, metallurgic and
chemical industry, solving transport problems and in other cases, which may be
performed graphically by using the derive of function and Lagrangian method of
multipliers.
Auth.
6.B2.1. Quantum-chemical research of electron structure,
complex-formation ability of paradimethylaminobenzaldehyde’s
paranitrobenzoylhydrazine. /M.Tsintsadze, M. Mamiseishvili,
D. Lochosvili, N. Gegeshidze,
By means of quantum-chemical
semi-empirical method AM1 the bond lengths, valence angles, electron density of
atomic orbitals of paradimethylaminobenzaldehyde’s paranitrobenzoylhydrazine
and effective charges on the atoms of this molecule have been calculated.
Potential donor atoms – oxygen atom O(14) of carboxylic group and nitrogen atom
N(12) of hydrazide group are ascertained.
Auth.
6.B2.2. S isonicotinoilhydrazones (painh) molecule study of
propionicaldehyd electronic structure and ability of complex-formation by
quantum-chemical semiempirical AM1 method. /M. Tsintsadze, D. Lochoshvili, N. Kilasonia, T. Tsintsadze, I. Sharia,
M. Chanturia, G. Manvelidze, J. Kereselidze/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 303-305 . – geo.; res.: geo., eng.
Effect of study of propionicaldehyd's isonicotinoilhydrazones molecule
electronic structure and ability of complex-formation is offered in the
article. Valency angles, interatomic distances, setting of electrons and
effective charges on the atomic orbital are rendered an account. Potential
donor atoms (atoms of heterocycle and hydrazin nitrogen N(1) and N(9), and
carbonyle group oxygen atom O(13)) have been revealed.
Auth.
6.B2.3. Research of complex-formation of zirconium (IV) in mixed-ligand
systems with the purpose of application in analytical chemistry. /G. Tsintsadze, R. Aliyeva, A. Abdallah, F. Chiraghov, M. Tsintsadze,
T. Tusiashvili/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 308-311. – geo.; res.: geo., eng.
Complex-formation of zirconium (IV) with
2,2',3,4-tetrahydroxy-3'-sulpho-5'-nitroazobenzene in the presence of
diantipyrilmethane (DAM) and its homologues has been investigated and the
conditions of for-mation of mixed-ligand complexes are found. By the method of
curves crossing stochiometry and constants of stability of mixed-ligand
complexes have been determined. It is established, that in the presence of the
DAM and its homologues molar factor of light-absorbance raises and the
selectivity of reaction is considerably increased. Developed technique of
photometric definition zirconium (IV) as mixed-ligand complex of zirconium
(IV)-R-DAM is applied for its determination in alloys on a copper basis.
Auth.
6.B2.4. Sinthesis of some derivatives of indolobenzo[b]tiofen and study
of their bioactivity. /M. Maisuradze,
The derivatives of indolobenzotiophen have been synthezed. Substitute
position towards the sulphur atom, atomic composition and influence of
disposition on products biological activity have been studied.
Auth.
6.B2.5. Hydrosilylation N-allyllactams with methyldichlorsilane. /L. Janiashvili, G. Andronikashvili,
The α- and β-addition products of hydrosilylation of N-allyllactams with
methyldichlorsilanes have been obtained. The hydrolytic condensation of
-addition products has been carried out.a
Auth.
6.B2.6. Analysis of kinetic data of enzymatic reactions. /I. Berdzenishvili, M. Siradze/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 321-323. – geo.; res.: geo., eng.
It is shown that for the analysis of kinetic constants of classical
Michaelis-Menten equation several methods can be used. In the paper, based on
two graphic methods Lineweaver-Burk and Eadie-Hofstee and statistically
independent method it possible to identife important kinetic terms of enzymatic
reactions. These KM and Vmax constants received upon three ways match good.
Auth.
6.B2.7. Calculation of standard molar enthalpies of olivine group
minerals formation. /E. Matsaberidze,
A. Sarukhanishvili, M. Mshvildadze, M. Kapanadze/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 324-328. – geo.; res.: geo., eng.
In the article there is offered the method for calculation method of
standard molar enthalpies of olivine crystallo-chemical group minerals by means
of application of only their thermodynamical data and taking into account the
structural properties of island silicates. The deviation of calculation results
in comparison with known values does not exceed 1%.
Auth.
6.B2.8. Alternative or new direction of chain reactions theory. /T. Tsivtsivadze/. Georgia
Chemical Journal. – 2009. - V.9.- #4. – pp. 329-332. – geo.; res.: geo., eng.
In the article scientific works of Professor I.N.Tavartkiladze, devoted
to mathematical modeling and identification of chain reactions and phase
transition processes kinetics are considered. Professor Tavartkiladze on the
basis of the physical and mathematical analysis chemical reaction and processes
of phase transformations deduced the fundamental kinetics equation for
evolutionary development (FKE ED) of structure which differs from the physical
kinetics of the basic equation. On the basis of analytical solutions of FKE ED
in essence new methods of mathematical modeling, identification and the
analysis of chemical reactions and processes of phase transitions kinetics and
dynamics are offered. These elaborated methods can be considered as a new
direction in development of theoretical basic analysis of chemical reactions
and the processes of phase transitions.
Auth.
6.B2.9. Correlation equations. /M. Gverdtsiteli, M. Karchkhadze/.
Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 333-334. – geo.; res.: geo., eng.
The main correlation equations (Brönsted’s, Hammet’s, Tapt’s, etc.)
and the areas of their application are considered.
Auth.
6.B2.10. Hammet’s correlation equation and pseudo-ANB-matrices method. /M. Gverdstiteli, M. Êarchkhadze,
Within the scope of pseudo-ANB-matrices method the parameter of Hammet’s
correlation equation (the relative velocity constant of hydrogen chloride
elimination reaction) has been calculated.
Auth.
6.B2.11. Examining of dry volcano muds from the viewpoint of
applicability in medical-prophylactic purposes. /N. Bokuchava, L. Ebanoidze, D. Jincharadze/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 336-338. – geo.; res.: geo., eng.
Comparative study of physical-chemical indices of dry and liquid volcano
muds of Akhtala has been accomplished for the first time, which reveals their
practical identity and possibility to apply dry volcano muds for
medical-prophylactic purposes. As a result, their application will increase the
mud resource, transporting, packaging, storing and delivery up to end user in
case of home usage will be simplified.
Auth.
6.B2.12. Stabilization of foams by special additives. /I. Berdzenishvili, M. Siradze, Kh. Dididze/. Georgia Chemical
Journal. – 2009. - V.9.- #4. – pp. 339-340. – geo.; res.: geo., eng.
The questions of stabilization of foams by special additives are
discussed. The classification of stabilizers on their hardening action is
given. It is shown that the efficiency of the use of the stabilizer of a group
depends on the direction of usage of the final product.
Auth.
6.B2.13. Membrane technology and installation for wine final sterile
filtration. /G.Bibileishvili,
V.Bibileishvili, N.Mumladze/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 341-344. – geo.; res.: geo., eng.
Unique possibilities of tangential microfiltration, possibilities of
their usage during purification and cold sterilization of wine are discussed in
the article. The issues of practical application of microfiltration technology
for final sterile filtration of wine are also discussed. On the basis of
experimental studies micro-filtration technology is developed and the relevant
two-stage membrane installation for final sterile filtration of wine has been
created ensuring the receipt of ecologically clean, absolutely transparent
stable product.
Auth.
6.B2.14. Technology of reception of hydrogen from water with help of
solar energy. /V.Shvelidze, R. Gakhokidze, L.
Tabatadze/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 345-346 . – geo.; res.: geo., eng.
The purpose of the work is in search of economically and ecological
solar power engineering installation and systems of new generation, working
out, research and designing of power installation for thermal reception of
hydrogen by the method of water splitting.
Auth.
6.B2.15. Technology of preparation of high-efficiency light-absorbers. /V. Shvelidze, R. Gakhokidze, L.Tabatadze/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 346-348. – geo.; res.: geo., eng.
Îriginal technology of preparation of high-efficiency light-absorber
which plays considerable important role in creation of solar power engineering
devices hàs been developed.
Auth.
6.B2.16. Metallic plastic – the new type of hybrid composition material. /M. Kezherashvili,
Cross-linking of polyethylene with peroxide, siliceous and radiation
methods are discussed. Cross-linked polyethylene of siliceous technology and
presumptive mechanism with this chemical reaction have been studied. The
structure of polyethylene cross-linked with peroxide, siliceous and radiation
technology is established. On the basis of cross-linked polyethylene, the
hybrid composition materials of new type – metallic-plastic pipes have been
obtained. By testing methods the basic physical-mechanical and technical characteristic
of metallic-plastics pipes were determined.
Auth.
6.B2.17. Solar thermal collector of a new generation and perspectives of
its large-scale implantation. /V.Shvelidze,
R.Gakhokidze, L.Tabatadze/. Georgia
Chemical Journal. – 2009. - V.9.- #4. – pp. 355-357. – geo.; res.: geo., eng.
This work is devoted to the perspectives of large scale development of
solar power engineering. There are considered problems of designing and large
production technologies of solar thermal collectors of new generation. Great
attention is paid to the construction simplicity, cost of used materials and
the manufacturing details and blocks by not power consuming, ecologic
acceptable technologies and also to the cost of obtained thermal energy there
are considered concrete ways of overcoming of above-mentioned problems.
Parallelly there was investigated solar annual activity in the region, are also
considered application perspectives of a solar collector in the analogous sunny
regions.
Auth.
6.B2.18. On the mineralogical composition of open-hearth slags of
Experimental verification of theoretically assumed possibility of
Auth.
6.B2.19. Use of secondary raw materials for purification of acid quarry
waters of madneuli ore mining and processing enterprise. /Sh. Andguladze, V. Gaphrindashvili, À. Ñhankotadze, T. Kvinikadze, B. Manning/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 362-364. – geo.; res.: geo., eng.
The use of elaborated technology enables to use low-graded barite ore by
processing of which there are obtained an independent product blanfix and
sodium sulfide used as a reagent of non-solvent for deep purification of acid
quarry waters from ions of heavy metals leading to formation of sulfide copper
containing compounds fully useful for subsequent application.
Auth.
6.B2.20. Project on regulation of ecological problems for Madneuli
deposit. /A. Tsilosani, Z. Okrostsvaridze, T. Tsilosani/. Georgia Chemical Journal. – 2009. - V.9.- #4. – pp. 365-369 . – geo.; res.: geo., eng.
The goal of the project is to remove heavy toxic metals flown down from
Madneuli (Georgia) ore of non-ferrous metals, created during the process of
development and enrichment of ore, which is an acute ecological problem. The
situation has been complicated by group leaching of gold quartzite ore by means
of cyanide solvent and receiving of Dore alloy and during at the same time by
the heavy toxic metals is polluted not only Bolnisi region, but the territories
in vicinity as well. The Project offers the possibility of purification of
polluted soil and waters, the method of removing of toxic elements from water
solvents have been selected.
Auth.
6.B2.21. Simulation of man-caused contamination of natural environment
by products of methane combustion and prognosis by means of thermodynamic
computer analysis. /A. Gogishvili, D.
Eristavi,
A great series of computer experiments have been carried out to
determine the composition of combustion products in methane-oxygen systeme at
various ratios of fuel and oxidizer. The process of combus-tion of natural gas
is led to thermodynamic study of "C-H-N-O" system, which is based on
the Gibbs energy minimization method within temperature interval 1000-3000K. On
the basis of obtained results the tem-perature cut diagrams have been
constructed, which are close to temperatures of the processes going on in
industry. We also offer the data of main components of the exhaust gas as a
result of natural gas burn-ing obtained by theoretical computation on the
computer, when α=2, and experimentally. Due to the fact that theoretical and
experimental results differ insignificantly and don't contradict each other, we
conclude that the offered method enables us to study combustion processes for
any type of natural fuel.
Auth.
6.B2.22. Gamma-radiation background of the environìent and generàl beta-radioactivity
of plants in Shida Kartli region. /K.
Goginashvili, Z. Chankseliani/. Georgia
Chemical Journal. – 2009. - V.9.- #4. – pp. 374-376 . – geo.; res.: geo., eng.
According to the results of the researches carried out the size of the
background of gamma-radiation in Shida Kartli (
Auth.
6.B2.23. Dynamics of nitrogen quantity in superficial waters in Shida
Kartli. /N.
Goginashvili, K. Goginashvili/. Georgia
Chemical Journal. – 2009. - V.9.- #4. – pp. 377-379. – geo.; res.: geo., eng.
Superficial waters in Shida Kartli (
Auth.
6.B2.24. Ringcycle of some element organogenes in the nature. /E. Kipiani, M. Kikalishvili,
The paper discusses circulation of some element organogens: carbohydrate,
nitrogen, phosphorus and sulfur in the nature; the substantial influence of
practical activities of men on self-operating processes of organogens;
adaptability of plant and animal organisms as a result of long-lasting
evolution with certain amount of chemical organisms that are involved in the
biological circulation. Continuous circulation of the organogenes takes place
in the nature.
Auth.
6.B2.25. Biological role of S elements of the periodic system in the
vitality process of the organisms. /E. Kipiani,
M. Kikalishvili,
The paper presents the biological role of S elements of Ia and IIa
groups. Discussed is the participation of these elements in forming buffer systems
of the living organisms and providing osmotic pressure and membrane potential.
Sodium and potassium participate in the transmission of nerve impulses, while
magnesium and calcium take part in corresponding structural formations.
Auth.
6.B2.26. Drugstore, the center of chemical discoveries. Letter 2. /R. Skhiladze, T. Tsivtsivadze/. Georgia Chemical Journal. – 2009. - V.9.- #6. – pp. 584-589. – geo.; res.: geo., eng.
The letter deals with the historical development od pharmacy and gives a
detailed account of the famous pharmacist and chemists and of their
contribution to the development of the chemical and pharmaceutical industry.
Auth.
6.B2.27. Live organisms as biological systems and thermodynamics.
/M.
Tsirekidze,
The article deals with the phenomena taking place in
the process of growth and development of the live organism. The system live
organism-environment is considered, in the live part of which increment of free
energy and decrement of the entropy take place. The high order characteristic
of live organisms is achieved by the absorption of energy. The entire energetic
machine of live organisms is essentially driven excited electrons.
Auth.
6.B2.28. Investigation of saprophytic bacteria microflora of some salty soils of the
Microflora of saprophytic bacteria of salty soils of
the
Auth.
6.B2.29. Results of introduction and
adaptation of North-American arborous plants in
The growth and development of 40 species of the arborous
plants - the North-American flora representatives introduced in
Auth.
6.B2.30. Pathology of harmful entomofauna of pine trees in the suburbs of
The work deals with the manifestations of latent
diseases of the harmful entomofauna of pine trees in the suburbs of
Auth.
6.B2.31. New interpretation of Michelson’s
experiment and restoration of the ather’s hypothesis. /G.
Togonidze,V. Shvelidze/. Georgia Chemical Journal. – 2009. – v. 9. - #6. – pp.
598-602. – eng.; res.: eng., geo., rus.
The article concerns
the error made almost 120 years ago during the interpretation of Michelson’s
experiment which caused the great damage to the development of theoretical
physics because the aether’s hypothesis was denied. As the Michelson’s
experiment took into the consideration the alternation of the light’s velocity C,
its mathematical interpretation was accordingly projected. But the experiment
didn’t show the alternation of C. So the formula 
and 
, doesn’t correspond to the elementary laws of physics:
Because of this error the electrodynamics’ law opposites the
Auth.
6.B2.32. Novel corotinoid concentrates from
subtropical plants. /D. Chikovani,
M. Kobakhidze/. Proceedings of the
Chemical composition
of pressed mandarin (Citrus Laus unshiu mau) fruits and fallen leaves of the Caucasian
persimmon (Diospyrus kaki L.) were determined. The carotenoid concentrates were
obtained from these raw materials. These concentrates may be used in food
industry as yellow food colorants as well as food additives for vitaminization
of products.
Auth.
6.B2.33.
Comparison of screening methods for reliable detection of genetically modified
organisms. /N. Datukishvili, T. Kutateladze , M. Karseladze,
Three
PCR primer pairs suitable for common regulatory elements of genetically
modified organisms (GMOs) were compared for selection of the most effective
screening method for GMO. Two of the primer pairs 35S1/35S2 and 35S-cf3/35S-cr4
are specific to 35S promoter from Cauliflower Mosaic virus and NOS1/NOS2 is
specific to the NOS terminator from Agrobacterium tumefaciens. The Roundup
Ready soybean was used as GM material. The comparison of the primer pairs was
carried out in two different PCR conditions PCR1 and PCR2. The results obtained
exhibited 35S promoter specific primer pair 35S-cf3/35S-cr4 as the most
specific, sensitive and efficient tool for GMO screening in the both PCR
conditions applied.
Auth.
6.B2.34.
Natural food red colorant with radioprotective properties. /N.
Mchedlishvili, M. Nikolaishvili,
The
chemical composition, antioxidant activity and radioprotective properties of a natural
red colorant obtained from green tea and pokeberry were investigated. The
colorant was found to consist of phenolic compounds (15.8%), pectin substances
(18.0%), free aminoacids (16.3%), reducing sugars (27.0%), organic acids
(7.8%), minerals (8.0%). It contains small amounts of radionuclides and toxic
elements. The natural colorant revealed high antioxidant activity and showed
only about 4 times less antioxidant potential than ascorbic acid. The factor of
doze changing was found to be equal to 1.25 indicating the high radioprotective
activity of the natural food red colorant. It was shown that the natural red
colorant from pokeberry and green tea may be successfully used in food
industry.
Auth.
6.B2.35.
New records of Geastrum persoon (gasteromycetes) for
The
paper presents diversity of the genus Geastrum in
Auth.
6.B2.36.
Effect of seed stratification on embryo growth dynamics and dormancy break in
taxus baccata L. /N. Shakarishvili/. Proceedings of the
Georgian Academy of Sciences. Biological Series B. - 2009. - #3-4. – pp. 18-23. – eng.; res.: geo., eng.
Seeds
of English yew (Taxus baccata L.) germinate in the second or even the third
year after ripening due to shift to dormant stage soon after maturation. In
order to break dormancy, seeds were warm (25° C, 90 days) and cold (5° C, 90
d.) stratified under moist conditions. At the end of cold stratification, the embryo
size increased 3 times; the embryo reached the full length of the seed; the seed
coat spitted along the ridges; soon after sowing, the embryo became green and the
early germination phase occurred. Over 60% of the stratified seeds had a
pregermination potential. The data obtained make it possible to suggest that the
most practical and simple method of yew seeds germination is to stop their
dormancy as a result of warm and cold stratification under damp conditions. The
adoption of this technique might be useful for yew conservation strategies.
Auth.
6.B2.37.
Dynamics and species composition of phyto- and zooplankton of the
Three
multifunctional water reservoirs in the vicinity of
Auth.
6.B2.38.
Antagonistic activity in the natural populations of Ajara (Western Georgia) and
Kakheti (
The
antagonistic activity of wine yeast strains isolated from natural populations
of ecologically distinct regions of
Auth.
6.B2.39.
Association between seropositivity for cytomegalovirus (Cmv) and Cd4+ cytotoxic
T cells expansions in patients with B-cell chronic lymphocyte leukaemia (B-Cll)
and healthy controls. /N. Kulikova, T. Tsertsvadze, P.
Tsagareishvili, L. Sereda, M. Tevzadze , L. Kardava, N. Gachechiladze, M.
Lukhumaidze, M. Ghirdaladze, N. Amaglobeli, N. Porakishvili/. Proceedings of
the
B
cell chronic lymphocytic leukaemia (B-CLL) is characterized by the clonal
expansion of CD5+CD19+CD23+ B cells. During the course of B-CLL, the expansion
of neoplastic clone is accompanied by a disbalance between CD4+/CD8+ T cells
and by deficiency of T cell function. We have previously shown an expansion of
CD4+ perforin (PF)+ cytotoxic T cells (cytT) with undefined specificity in patients
with B–CLL. It has been demonstrated by others that the expansion of CD4+PF+ T
cells in control individuals is often associated with chronic viral infections.
Taking into consideration that B-CLL patients are immunocompromised, with
frequent viral infections, we investigated the role of CD4+PF+ cytotoxic T
cells in immune responses to one of the most common chronic viral infections –
human cytomegalovirus (hCMV). We studied an association of cytT cell
frequencies with the chronic CMV infection in 32 B-CLL patients and 18
age-matched healthy controls. Peripheral blood mononuclear cells (PBMCs) were
immunostained with anti-CD4~PerCP monoclonal antibodies (mAb), fixed,
permeabilised and immunostained with anti-PF~FITC mAb. Cells were fixed and
analyzed by flow cytometry. Serum samples were routinely tested for anti-IgG
antibodies to CMV. Here we show that CD4+PF+ T cell expansions appeared to be
strongly associated with CMV seropositivity in healthy individuals, and,
particularly, in B-CLL patients. The immunocompromised status of the majority
of B-CLL patients may facilitate expansion of this unusual population of
cytotoxic cells to combat reactivation of a chronic CMV infection.
Auth.
6.B2.40.
Crown gall disease of grapevine in
Elimination
of the thick stand of vineyards caused by diseases, and particularly by crown
gall, is one of the considerable potentials for increasing the vineyard
capacity. During long term investigations, it was established that crown gall
is widespread in the main vine growing regions of
Auth.
6.B2.41.
Creation and study of antimicrobial-antifungal composite against mixed
infection using biodegradable polymer as a matrix. /M. Goderdzishvili,
Z.Alavidze, A. Meiphariani, I. Chkonia, L.
Dzidzishvili, N. Kvatadze, D. Zhghenti, S. Rigvava, T. Dvalidze, I.
Kusradze, N. Karumidze, N. Nadirashvili, R. Katsarava/. Proceedings of
the
Application
of bacteriophages in complex with antifungal preparations for treatment of
associated bacterial and fungal infections is being considered as a novel
approach to deal with this problem. A biocomposite film was created by using
the biodegradable polymer containing new bacteriophage combination (Pyobacteriophage+Klebsiella,
Enterococcus, Acinetobacter bacteriophages), Pimafucin and Trypsin. Among the
antifungal substances pimafucin was chosen, because it is less toxic in
comparison with other antifungal remedies and it does not cause phage
inactivation. At a certain stage trypsin contributes to the wound healing
process and does not decrease phage activity significantly in laboratory
conditions. Therefore this enzyme was chosen for incorporation into the
complex. The biocomposite film is characterized by high activity towards
bacterial and fungal flora and appeared to work according to the controllable
phage release principle provided by the enzyme used in its composition.
Auth.
6.B2.42.
Quantitative and qualitative content of microscopical fungi in Kumisi alkaline
soils (
The
qualitative and quantitative content of microscopical fungi in alkaline soils
of
Auth.
6.B2.43.
The study of DNA synthesis in functionally distinct flight muscles of locust. /G.
Papidze, Ts. Sumbadze,
DNA
synthesis in functionally different monofunctional (MOF) and bifunctional (BIF)
flight muscles (dorsal longitudinal 112, tergosternal 113, tergocoxal 119,120)
of the locust in the process of imago development (one-day and mature locust)
has been investigated. Using H3-timidin as a marker it has been determined that
the intensity of DNA synthesis in the locust functionally different MOF and BIF
flight muscles of one-day imago (the wings are not functioning yet) is 2-4
times higher than that of mature locust. It indicates that up to this period of
development the process of formation of flight apparatus is not finished yet.
In MOF muscle 112 of one-day imago as well as in the case of mature locust the
level of DNA synthesis was low. The differences among DNA synthesis in other
muscles (113,119,120) were not observed.
Auth.
6.B2.44.
Preliminary results of effect of different water volumes on conidial mass
production of beauveria bassiana. /M.Burjanadze/.
Proceedings of the
Mass
production of entomopathogenic fungi is an important component of successful
microbial insecticide program. The objective of this study was to evaluate the conidia production of strain Beauveria
bassiana (CA-603) on millet growing media at different water volumes (substrate
: water 1:0.25; 1:0.5; 1:0.75 and 1:1). The results showed that there were
significant differences in conidia production at the water volume of cooking.
Conidia production of B. bassiana was significantly higher (3.4 x107 /g millet)
at 1:1 water ration and spore viability achieved 90.3%. Although, higher
(94.7%) spore viability was observed too in the variant 1:0.25.
Auth.
6.B2.45.
Villafranchian vertebrate fauna of
The
paper deals with Villafranchian vertebrate fauna of
Auth.
6.B2.46.
Effect of coniothyrium minitans conidial suspension concentrations on mortality
of sclerotinia sclerotiorum sclerotia under controlled conditions. /.N.Bitsadze/. Proceedings of the
Coniothyrium
minitans is a biological control agent of white mould causing plant fungal
disease sclerotinios. Different concentrations of C. minitans were tested
against sclerotia of Sclerotinia sclerotium. Increasing of the concentration of
the mycoparasite caused increasing of sclerotia mortality. Very low
concentration of C. minitans was enough to kill sclerotia, but for killing them
in a shorter time it was more effective to use higher concentrations (107-108
sp/ml).
Auth.
6.B2.47.
Reproductive potential of entomopathogenic nematode steinernema feltiae on
different hosts (galleria mellonella, hyphantria cunea and leptinotarsa
decemlineata). /N.Mikaia/. Proceedings of the
The
study deals with the efficiency of comparative reproduction of entomopathogenic
nematode Steinernema feltiae larvae in the following insects: the wax moth -
Galleria mellonella, the fall webworm - Hyphantria cunea and Colorado potato
beetle imago - Leptinotarsa decemlineata. An emphasis is placed on the control
of parasitic insects number by means of entomopathogenic nematode S. Feltiae.
New nutrient media for cultivation of nematode S. Feltiae have been revealed.
High indices of S. Feltiae reproduction occur at the 7th day from the invasion
on larvae H. cunea - 94.5 %, on L. decemlineata - 98.4 %, on G. Mellonella -
91.8 %. The obtained data make it possible to cultivate S. Feltiae against
pests of agricultural crops.
Auth.
6.B2.48.
Study of biodiversity of Svaneti (Georgia) nematodes. /E.
Tskitishvili, M. Kuchava, T. Tskitishvili/. Proceedings of the
In
order to study nematode inhabitants of Svaneti region several natural
ecosystems were investigated. 45 forms of nematodes were recorded. Among them
Mesodorylaimus paetzoldi Altherr, 1965 is new for the fauna of
Auth.
6.B2.49.
New lichen species for
The
paper presents descriptions of 3 species new to the lichen flora of
Auth.
6.B2.50.
Some notes on fungus stigmina obtecta (petrak & esfandiari) M.B. ellis
associated with dead twigs of cultivated and wild woody plants in
The
paper deals with nomenclature and host range of Stigmina obtecta associated
with dead stems and twigs of different woody plants including mulberry and fig
trees.
Auth.
6.B2.51. Alkaloids of
Georgian endemic plant of buxus colchica pojark. and the anatomy of vegetative
bodies of overground parts. /N. Vachnadze, J. Aneli, E. Jakeli, V.
Vachnadze, D. Tsakadze/. I. Kutateladze Pharmacochemistry Institute. Collected
Scientific Works. - 2009. - #1 (17). – pp. 7-11. – rus.; res.: geo., eng., rus.
Investigation
of Georgian biologically active compounds of plant and mineral origin dring
phytochemical investigations Buxus ñolchica Pojark. 8 individual compounds were
isolated and structurally identified, two alkaloids appeared to be new and the
next structures were offered: 3b -
dimetylamin- 20a
-methylamin- 4b, 4a,14a - trimethyl - 9b,19a - cycloprotobuxin-C
and (-)N-3-O-16-hydroxi-3a,20a-monomethylamino-4-methylen,14a-methyl-9b19cyclopseudobuxin-D.
Jointly with the Department of Pharmacobotany for the first time is described
the anatomy of vegetative bodies of Buxus overground parts, which is necessary
for identification of raw material and obligatory for reference documentation.
Auth.
6.B2.52. Alkaloids of Galanthus latifolius Rupr., grown in
Galanthus
latifolius
Rupr. grown in
Auth.
6.B2.53. Alkaloids of the growing in Georgia Veratrum lobelianum Bernh. /T.Suladze/. I. Kutateladze
Pharmacochemistry Institute. Collected Scientific Works. -
2009. - #1 (17). – pp. 16-21.
– geo.; res.: geo., eng., rus.
During phytochemical
investigations of Veratrum
lobelianum Bernh., 10 individual compounds were isolated, 9 alkaloids were
structurally identified, 8 of which - iervin, veralozin, veralozinin,
veralozidin, veratroilzigadenin, psevdoiervin,
veralodin – were found in the plant for first time, whereas O–acetil iervin and 12α,13β- digidroiervin
for the first time are described.
Auth.
6.B2.54. Preliminary researches of the growing
in
Research of separate parts of owo species of the genus
Auth.
6.B2.55.
Research of separate parts of the growing in
It is found that flavonoids accumulate basically in the leaves
and flowers, less in stalks, and are absent in the roots. A significant content
of cycloartans is observed in stalks and roots.
Auth.
6.B2.56. Triterpene glycosides from the roots
and leaves of Phytolacca americana L.
/M.
Getia, M. Gabelaia, V. Mshvildadze, B. Tabidze, N. Tabatadze, G. Dekanosidze/. I.
Kutateladze Pharmacochemistry Institute. Collected Scientific Works. -
2009. - #1 (17). – pp. 30-36.
– rus.; res.: geo., eng., rus.
Triterpene glycosides
of the roots and leaves of the American pokeweed Phytolacca
Auth.
6.B2.57. Lipids of Medicago sativa growing in
The chemical composition
of neutral lipids of the seeds of Medicago sativa are studied The class and fatty acidal
composition of them are determined and the qualitative and quantitative analysis of phospholipids is carried out.
Auth.
6.B2.58. Annual wormwood Artemisia annua L. growing in
It is established that the annual wormwood Artemisia annual L. cultivated at I.
Kutateladze Institute of
Pharmacochemistry’s experimental station for medicinal plants (
Auth.
6.B2.59. Preliminary investigation of some plants
growing in
A preliminary phytochemical investigation of glycosides, flavonoids and
saponines of 52 plants growing in
Auth.
6.B2.60. Preliminary investigation of
leaves of some higher plants introduced in Georgia for the content of biologically active compounds. /T.Sagareishvili,
M.Alania, K, Shalashvili/. I. Kutateladze Pharmacochemistry
Institute. Collected Scientific Works. - 2009. - #1 (17). – pp. 58-65. – rus.; res.: geo., eng., rus.
A preliminary
phytochemical analysis of leaves of some higher plants introduced in
Auth.
6.B2.61. Development of a standardization
method for a new dosage form of the drug colchicine. /P.Iavich,
L. Churadze,
Investigations of a new
dosage form of the drug colchicin - gastric soluble capsules - have been
carried out. A new method of standardization has been developed. The quantitative
analysis precision has been proved by validated characteristics. The capsules’
content of colchicin makes 0,00085-0,00115 g and 0,00051-0,00069 g.
Auth.
6.B2.62. Obtaining of
pure tannin. /M.Mghebrishvili, A. Sarabunovich, L. Churadze, P. Iavich,
The method
of purification of the pharmacopeial tannin from the low molecular mass
compounds is described. As model systems: tannin, galic acid, rutin, arbutin,
hydroquinone, qvercetin. The ionchange purification on ÊÓ-2, (H+form),
ÝÄÝ-10Ï (OH-form), ÈÀ-2 (CL- form) has been found to the
most advisable technique. As a result, tannin being practically free from low-molecular
admixtures is obtained .
Auth.
6.B2.63. Technological and biopharmaceutical
aspects of development on the cacao oil base of suppositories with piophages. /M.
Orjonikidze, G. Tsagareishvili,
The biological
phenomenon of bacteriophage represents an alternative of antiboticotherapy. The
objective of the study is to investigate the compatibility of phages with cacao
oil and the possibility of development of suppositories with bacteriophages for
the treatment of paraproctitis, vaginitis, cervical erosion, the treatment of
which is very complicated due to the antibiotic resistance of claimers. On the
basis of complex physico-chemical, technological and biopharmaceutical studies,
the possibility of development of suppositories with piophages has been
determined, the technology and composition of suppositories with piophages
developed, and the physico-chemical and structural-mechanical parameters of
quality studied; it is determined that they are in compliance with the standard
documentations on suppositories. A method of analysis of specific activity for
5 components of piophage has been developed. It is determined that piophage is
released fully from the base and the cacao oil does not affect its specific
activity.
Auth.
6.B2.64. Technical characteristics and method
of standardization of a potential radio protective dosage form and substance. /P. Iavich,
L. Churadze,
Different
technological characteristics (breakup, volume weight, residual humidity,
friction slope) of a potential radio protective form based on plant extracts
and organic acids have been investigated. A relationship between these
parameters is found. Based on the State Pharmacopoeia requirements, different
tests of the substance and packet dosage forms have been performed. A method of
standardization for both the substance and the granulated dosage form has been
developed.
Auth.
6.B2.65. Study of the liberation of
biologically active compounds from dosage forms containing radioprotective
ingredients. /P. Iavich, Z. Chankseliani, T. Rukhadze, N. Gagua, V.
Khositashvili, L. Khositashvili/. I. Kutateladze Pharmacochemistry
Institute. Collected Scientific Works. - 2009. - #1 (17). – pp. 91-95. – rus.; res.: geo., eng., rus.
New dosage forms of
the drugs tkis nobati and menjuni as well as of the of a radio
protective drug IF-stomach soluble capsules and suppositories have been
developed. Investigated are their characteristics, which determine assimilation
of biologically active compounds by the organism. These data make it possible
to suppose a rather high pharmacological activity of the drug.
Auth.
6.B2.66. Development of common oak bark and
wood extraction technology. /V. Khositashvili, D. Abzianidze, L.
Khositashvili, M. Sutiashvili/. I. Kutateladze Pharmacochemistry
Institute. Collected Scientific Works. - 2009. - #1 (17). – pp. 96-100. – rus.; res.: geo., eng., rus.
In studying the chemical
composition of common oak bark and wood, the content of the tanning matter,
lignin’s, grass acids, and iron in the plant was determined. The extraction
process sheets have been developed.
Auth.
6.B2.67. Chemical modification of a complex
of papaya enzymes by polymeric ligands. /G. Erkomaishvili, L.
Nadirashvili, D. Chanturia, L. Vadachkoria,
A complex
of papaya protease (CPP) obtained from the latex of unripe fruits of papaya
(Carica papaya), possessing high proteolytic, antipyretic and necrolitic
properties, is rather effective in the treatment of many diseases that are
related to the degenerative changes in the tissues; however, its application is
comparatively limited due to its allergenic action. For the purpose of
elimination of these undesirable properties, the strengthening of
thermostability in the solutions, the chemical modification of the CPP by
polyamide ligands with the molecular weight from 30 to 88 kDa, representing by-products
of polycondensation of lysine with the adipic or sebacic acid (4- Lys and 8-
Lys, respectively), was carried out. The modified preparations preserved 80-95%
of the initial proteolytic activity of the CPP, with a sharp increase in the
stability in solutions at 500Ñ.
Auth.
6.B2.68. Apparatus and method for in vitro study of iontophoretic
permeation of proteolytic enzymes in animals skin. /G. Erkomaishvili, L.
Vadachkoria, L. Nadirashvili, D. Chanturia/. I. Kutateladze
Pharmacochemistry Institute. Collected Scientific Works. -
2009. - #1 (17). – pp.
107-114. – geo.; res.: geo., eng., rus.
The simple apparatus
and method for in vitro study of
electrophoresis regulations of proteolytic enzymes through the membranes of
animal skin have been developed. It has been shown that papaya proteases fail
to penetrate into the frozen chicken skin rather than overcome this barrier
without electric current. During electromigration, a certain part of papaya
proteases accumulates in the skin structure. By the experiments on the frozen
chicken skin and “alive” rat skin it has been shown that dimethylsulfoxide (2-3
drops by 10 ml of anodic solution) strengthens the permeability of papaya
proteases up to 12-14%. The negative influence of the “parasitic” ions of
physiological solution on the electrophoresis of papaya proteases has been
confirmed, which prejudices the application of the solution in the procedures
of electrophoretic treatment with karipazim.
Auth.
6.B2.69. Method of determination of the
proteolitic activity of karipazim. / G. Erkomaishvili, L.
Vadachkoria, L. Nadirashvili, D. Chanturia /. I. Kutateladze
Pharmacochemistry Institute. Collected Scientific Works. -
2009. - #1 (17). – pp.
115-122. – geo.; res.: geo., eng., rus.
A method for
determining the proteolytic activity of karipazim - the medicine containing the complex of papaya
proteases, has been developed taking into account the requirements of
Auth.
6.B2.70. Development of suppository base
containing ticha-ascanae. /M. Orjonikidze,
The studies for the
development of a new suppository base containing specially processed bentonite clay
- ticha-ascanae, and cacao butter have been carried out. It is established that
the introduction of up to 3% of ticha-ascanae in the cacao butter improves the structural-mechanical,
rheological and physical-chemical properties of the cacao- butter as the suppository
base. The stability of the proposed suppository base in the course of long-term
storage (1 year – observation term) under conditions of room temperature and at
+3-5ºC has been determined.
Auth.
6.B2.71. On the development of an ointment
containing Akhtala mud. /T. Rukhadze,
Osmotic and colloid
characteristics of an ointment containing 10-20% of Akhtala curative mud have
been investigated. Different emulsifiers have been used. It has been shown that
the best result is achieved when a wax emulgator and 10-20% Akhtala mud are
applied. The optimal formula of the oinment has been developed.
Auth.
6.B2.72. Herbarium of
Iovel Kutateladze Institute of Pharmacochemistry. /M. Churadze, J.
Aneli, L. Takidze/. I. Kutateladze Pharmacochemistry Institute. Collected
Scientific Works. - 2009. - #1 (17). – pp. 131-136. – rus.; res.: geo., eng., rus.
The 77-year history
of the establishment and development of the herbarium of Iovel Kutateladze
Institute of Pharmacochemistry is considered. The role of collaborators in the
formation of the herbarium is mentioned. Since 2007, the herbarium has been registered
in a Global Directory of Public Herbaria and Associated Staff - Index
Herbariorum, 9th volume under the acronym TBPH.
Auth.
6.B2.73. Cariogeographical
analysis of rare and endemic calcifilous plants of
The calcefilous cariogeography of the
Auth.
6.B2.74.
Determination of the content of microelements in some Georgian mineral waters. /B.
Gogichaishvili, R. Kavzinadze,
It
is shown that among the chemical elements found in mineral waters in small
quantity, worthy of notice are microelements of definite biological activity,
such as Cu, Zn, Ni, Co, Cr, and Mn. By using a preliminarily developed
chromatography concentration method, the above elements have been fixed in some
of the Georgian mineral waters, including those of Tskaltubo. For the first
time, the content of these elements in mineral waters has been determined
Auth.
6.B2.75.
Hydrogen bonds in crystal structures of some phseudohydroacetates. /G.
Tsintsadze, N. Endeladze, B. Gogichaishvil, A. Chubinidze, R. Kavzinadze/.
Georgian Scientific News. – 2009. - #2. – pp. 15-18. - rus.; res.: geo., eng., rus
In
the work the hydrogen bonds in crystal structures of phseudohydroacetates are
studied. The structures of hydroacetates of alkali and alkali earth metals are
analyzed and shown that at transition from compounds of metals with small ion
radius to the compounds of larger-size cations changes occur in yjr structure
which is related to isolation of infinite columns and layers from exygenic
polyhedrons of atoms of metals. The analysis of geometric characteristics of
hydrogen bonds in structures revealed that formations of dimmers and trimmers
are carried out by strong hydrogen bonds when the distance O.... O is less than
2,5Å
Auth.
6.B2.76.
Reduction of albumin loss upon ultrafiltrative concentration with application
of the pulsative flow of solutions of biologically active substances. /R.
Lomaia, Sh. Rukhadze/. Georgian Scientific News. – 2009. - #2. – pp. 39-41. -
rus.; res.: geo., eng., rus.
The
reasons of albumin loss upon ultrafiltrative concentration are shown. For
reducing albumin loss, the optimum type of the membrane UPM-100 according to
selectivity is chosen. The advantage of pulsative mode of divided solution and
optimum mode parameters of the division process in the view of the optimal
constructive parameter, the height of the channel of division are experimentally
established. For ultrafiltrative concentration the flow pulsative mode of divided
solution is chosen which is more effective than turbulent mode. The optimum
frequency of pulsation (1.1 pulses per second) and the height of channel of
division (1,5 mm) are established. It is proved that with application of the abovementioned
parameters upona ultrafiltrative concentration the loss of albumin decreases in 5-6 times.
Auth.
6.B2.77. Membrane phospholipid
ratio and cell stability. /M.Gordeziani,
M.Tabatadze,
The results of quantitative description of 11 5(1) y Nocardiopsis
dassonvillei cells phospholipids exposed to different doses of UV
irradiation are presented. Spectral methods are applied to measure the amount
of total, amino and choline comprising phospholipids. Additionally, stability
of 11 5(1) y Nocardiopsis
dassonvillei cells irradiated with the same doses was examined. Different
pattern of quantitative changes of amino and choline comprising phospholipids
was detected. Functional relationship between phospholipid composition and cell stability is discussed.
Auth.
6.B2.78. Some
perennial herb representatives of the Asteraceae family in
The article presents
the description of some perennial herbs from the Asteraceae family,
mainly Achillea filipendulina
Lam. cv Parke`s variety, Leucanthemum maximum (Ramond) DC. cv '
Auth.
6.B2.79.
The prospects of cultivating jujube (Ziziphus
jujuba Mill) in
Jujube is the best
medicinal plant for cultivating under conditions of
Auth.
6.B2.80. Mineral composition of a
biologically active additive (BAA) produced tea and medicinal plants. /S.
Kostava/. Novation. – 2009. – #5 – pp. 236-240. – geo., res.: geo., rus., eng.
For determining the
microelement composition of a BAA, a desktop energy-dispersive X-ray-fluorescence (EDXPF) analyzer ElvaX Spectrometer was used.
On the basis of the analysis carried out, it has been established that the BAA
is rich in all the microelements necessary for the human organism, especially in
the “protective” (Se, Zn, I) and essential (important for the life) K, Ca, Cr,
Mn, Cu, Fe, Co and other minerals, which makes it especially promising for use
in the normalization of various vital processes, as well as in the treatment
and prevention of diseases and enhancing the natural immunity to different
environmental artifacts.
Auth.
6.B2.81.
Phenol-formaldehyde type polymers on the basis of bisphenols. /N. Gelashvili,
G. Papava, M. Gurgenishvili,
Methylol
derivative on the basis of adamantane type bisphenols was obtained. Some
kinetic regularities of reaction of interaction of polycyclic bisphenols and
formaldehyde were studied. Bisphenol III is taken as an example.
Auth.
6.B2.82.
The regularities of electrolytic dissociation of phthalic acid. /E.
Kvaratskhelia, R. Kvaratskhelia, R.
Kurtanidze/. Bulletin of the
An
analysis of the regularities of the dissociation of phthalic
(benzenedicarboxylic) acid was carried out with the aid of a method previously
described by the authors. The values of the degrees of dissociation for both
steps, and the concentrations of various ionized and non-ionized forms of this
acid were determined. Empirical equations are also suggested for easy
approximate calculation of the degrees of dissociation and pH values of dilute
solutions of phthalic acid.
Auth.
6.B2.83.
Amplitude dependence of internal friction and shear modulus of tin-doped
monocrystalline silicon. /G. Darsavelidze, I. Kurashvili, G.
Bokuchava, T. Mkheidze,
Internal
friction and shear modulus amplitude dependences of tin-doped monocrystalline
silicon were investigated. Values of critical strain amplitudes of dislocation
segments breakaway, absolute shear modulus and elastic limit were determined.
Internal friction, shear modulus and elastic limit are measured. Internal
friction and shear modulus hysteretic type variations mechanism were analyzed.
Auth.
6.B2.84.
Characteristics of the frequency distribution of some immunogenic markers in
the population of the mountain region (Khulo) of Ajara. /M.
Nagervadze, R. Khukhunaishvili, A. Diasamidze, M. Koridze, G. Dumbadze, L.
Akhvlediani/. Bulletin of the
Red
blood group antigens represent a genetically stably determined trait, being of
many-sided biological and clinical significance. The indigenous Ajarian
population (105 subjects) was investigated for ABO, Rh-Hr,
Auth.
6.B3.1. Optimal
methods of the static and dynamic breakdown of rocks. /.G.Baliashvili,
F.Bezhanov, L.Gurchumelia, N.Sarjveladze, T.Rukhadze/. Transactions of
Samples
of marble, sandstone and tuff broken down by the action of static and dynamic
forces are given when tested in the dried, water saturated, SAS saturated
state in the air, water and SAS environment. The mechanism of rocks breakdown, causes
of the variation of the value of specific work, and the optimal methods are
given.
Auth.
6.B3.2.
The geological policy of the country and rational use of the mineral resources.
/.N.
Kajaia,
The
optimal use of the country’s mineral resources raises the level of the state
independence.
Auth.
6.B3.3. Gold
deposits prospecting criteria. /.D.Bluashvili, N.Japaridze/.Transactions
of Technical University of Georgia. - 2009. - #1(471). – pp. 43-46. – geo.;
res.:
geo., eng., rus.
The
results of gold prospecting carried out since the second part of the last
century and up to now are discussed. Three comparative information groups are
picked out and the necessary criteria for prospecting gold deposits in the 21st
century are considered.
Auth.
6.B3.4. Iron in the Early Oligocene sediments
of the Georgian block. /A.Makharadze/. Novation. – 2009. – #5 – pp. 256-259. – rus., res.: geo., rus., eng.
Iron mineralogy in
the volcanogenic sedimentary silico-manganese formation and its spread regularities
are considered. The formation is shown to contain a low percentage of iron and to
create small accumulations thereof. Iron in the formation is mainly met in the
form of glauconite and iron-montmorollonite. Rarely iron hydro-oxides, oxides
and carbon compounds are met.
Auth.
6.B3.5. Facies analysis of the
volcano-sedimentary host rocks of the Cretaceous Madneuli massive sulphide
deposit,
The
Cretaceous Madneuli barite-gold-copper-pollymetallic deposit is a major deposit
of the
Georgian
Bolnisi mining district, located in the Artvin-Bolnisi zone. This contribution
presents a detailed lithofacies analysis of volcanic host rocks of the Madneuli
deposit, including detailed mapping of six outcrop sections, hand samples
studies and thin section observations. The rhyolitic volcanoclastic host rocks
can be divided into three groups: (1) massive breccias interpreted as massive
breccia flows, (2) stratified tuff and lapilli tuff (including ignimbrites,
rhyolite and rhyodacite pyroclastic flows), and (3) turbiditic tuff. On the
northern level of the deposit two ignimbrite horizons were singled out. One of
them (columnar jointed ignimbrite) was first seen and described by the authors.
The same should be said about the association of ignimbrite with rhyolitic
pyroclastic lava flows and dacitic hyaloclastic rocks.
Auth.
6.B3.6.
Zonal dissection of Aalenian deposits by ammonites of the
The
author, on the ground of his own materials on the characteristic complexes of
ammonites from various geological sections of the Caucasus, together with all
available data on the present-day biostratigraphy, has worked out a detailed
scheme of zonal dissection of the Aalenian deposits of the Caucasus which is
correlated with the standard zone scale of Western Europe.
Auth.
B4. Geography.
Cartography. Astronomy
6.B4.1.
Climatic conditions on the ancient Earth surface. /R. Kiladze/.
Bulletin of the
Taking
into account the greenhouse effect and contemporary surface temperature of
Venus, the value 352°C is taken as the ancient Earth’s surface temperature. A
model of the atmosphere is beuilt; its principal components are CO2
and H2O. The obtained results radically change the traditional
notions on the climatic conditions dominating on the Earth in the epoch of the
origin of life on it. The above fact should be taken into consideration when
investigating the problem of the origin of life on the planet.
Auth.
6.B4.2.
Thermal balance of the Earth and global warming. /M. Jibladze, A.
Mikaberidze, Z. Razmadze/. Bulletin of the
By
calculations of the thermal balance of the Earth it is shown that about half of
the solar energy falling on the terrestrial surface is spent on evaporation of
water from the surfaces of oceans, seas and the land. Part of it is absorbed by
green plants, but thermal energy emitted because of human activity is by four
orders less than the energy received by the Earth from the Sun. It is also
noted that an increase in the concentration of CO2, which is
considered to be the principal cause of the greenhouse effect, has a very poor
influence on the average-annual temperature of the Earth, and the infrared radiation
of the terrestrial surface absorbed by molecules of CO2 cannot evoke
the greenhouse effect.
Auth.
B5. OTHER
NATURAL AND EXACT SCIENCES
6.B5.1.The first Georgian space object. /E.
Medzmariashvili/. Science and Technologies. – 2009. - #7-9. – pp.13-18. – geo.,
res.: eng., rus.
The article deals with the first Georgian space
object, its orbiting and successful experiment. This event is referred to in astronautics
encyclopedia as a beginning of new technologies and the date of its
implementation is recorded in the chronicles of the outstanding events in world
astronautics.
Auth.
C. TECHNICAL AND APPLIED SCIENCES. SECTORS OF ECONOMY
6.C1.1.The
questions of rational using of Georgian water resources from the standpoint of
sustainable economic development. /G. Gobechia, K. Makharadze, R. Phirtskhalava/. Science and Technologies. – 2009. - #7-9. – pp.46-49.
geo., res.: eng., rus.
The questions of rational nature management, in
particular using of water resources in
Auth.
6.C1.2.
Energy balance of
Study
of energy of
Auth.
6.C1.3.
Simplified calculating models of controlled power transmission lines. /O.
Zivzivadze, L. Zivzivadze, Sh. Pkhakadze/.
Georgian Scientific News. – 2009. - #2. – pp. 42-45. - rus.; res.: geo., eng., rus.,
The
article is devoted to application problems of new methods of electric energy
transmission to long distances, in
particular the development of calculating model for controlled transmission
lines. Controlled lines are lines of a new generation which can change
equivalent parameters depending on a mode. In terms of design, a controlled
line is a system structured with homonymous phase wires of two chain lines
arranged in pairs in which lines are approached to each other on minimal
admitted distance, creating maximal electromagnetic interaction between
circuits of the line. Due to such design of a line, the equivalent inductive
resistance significantly decreases, increasing throughput of the line. In the
article calculating method of a controlled line is developed. It is shown that
each circuit of such line can be considered as a four-terminal network,
transmission constant of which, together with wave parameters, are depended on
the angle of shift between voltages of circuits. In contrast to the circuits that
are not dependant on the shift angle, particular equivalent circuits are
relatively simple. They facilitate calculations and analysis of controlled power
transmission lines for the established modes.
Auth.
C2.
Electrical Engineering. Electronics. Radio Engineering. Communications
6.C2.1.New generation network (NGN) transport platform development trends. /K.
Khoshtaria,
The significant feature of today’s telecommunication
is the trend to create packet based multi service networks. The base of
transport infrastructure link layer for them is the Ethernet. Therefore, the
main task for transport in mentioned networks is transmission of Ethernet
traffic, providing all requests concerning to transport layer. In the article
there is shown the evolution from TDM to packet switching oriented systems, and
briefly considering different transport technologies (SDH, DWDM, MPLS, T-MPLS,
PBT) and is suggested opinion, for implementing “perfect” NGN, it is necessary
to create full optical transport infrastructure.
Auth.
6.C2.2. Analysis of the process of
two-way
The
analysis of operation of welding transformers in a consecutive mode during
welding has allowed to reveal welding defects by measurement of secondary
currents and comparison of their rating values.
Auth.
6.C2.3.
Increase of reliability of electrothermal ore alloy furnaces with application
of composite materials. /K. Bakuradze, E. Buadze,
In
the work the question of replacement of copper pipes serving for cooling
electro-contact «jaw» of ore alloy furnaces is considered for the purpose of
increasing reliability and duration of their work. An alternative method of
preparation the «jaw» with application of composite materials by use of a
metal-textile composition is offered. The technology of preparation of a
composite pipe is given and the tests for its reliability are carried out. Testing
of a composite pipe formed by the offered method has shown that the electro-contact
“jaw” and its cooling channel completely meet the requirements to the ore alloy
furnace. Moisture existing in the composite pipe and the combustible gases are
intensively and forced out from the form. The produced «jaw» is of a uniform
structure and the performance increases 2-2.5 times. The application of the composite
pipe in the electro-contact unit – “jaw” - has decreased their weight by 65kg
Auth.
6.C2.4.
The simplified calculation of power interaction of conducting bodies in pulsed
magnetic field. /B. Mamikonyan, Kh. Mamikonyan/. Novation. –
2009. – #5 – pp. 32-39. – rus., res.:
geo., rus., eng.
A laboratory model of bobbin-type
electromagnetic accelerator is studied. The research aim is the experimental
specification of the simplified principles of research processes
occurring in the device. The simplified theory of the results of the
device’s experimental research on alternative and direct currents
is given and the coincidence accuracy of theoretical and experimental
curves of the dependence of short-circuited ring kickback height from
the pressure stimulation enclosed to the bobbin is assessed.
Auth.
C4. Mining.
Metallurgy. Chemical Industry
6.C4.1.
Development of silicomanganese smelting technologies, studies and industrial
development by using high iron-content low-quality manganese ores in the charge
at the ferroalloys miniplant “Meteks” Ltd. /Z. Simongulashvili,
T. Sharashidze, M. Tsirdava, B. Maisuradze, S. Nebieridze/. Transactions of
The
possibilities of developing new techniques and technologies under conditions of
the Ferroalloys Miniplant “Meteks” LTD, the plant’s flexibility to change the
technology and the segment of the produced production in the shortest period of
time, taking into consideration market demands, have been discussed. The
advantages of such miniplants over large plants have been analyzed. The new
technology of producing silicomanganese in the charge using high iron-content low-quality
manganese ores has been developed for the first time.
Auth.
6.C4.2.Rational design of a gear
for replacement of
automatic mill mandrels. /J.
Melkadze, M. Mikautadze,
A
new design of the gear for replacement of mandrels of automatic mill providing
for the operation of the automatic mill of tube-rolling installation “140’’ work
with two mandrels is proposed. The gear is so designed as to exclude idling and
provide for the conservation of high rate of rolling on the automatic mill of
installation “140’’. The introduction of the gear in industry will ensure the
mechanization of mandrels replacement, improvement of quality of the manufactured
products, especially upon rolling of light-wall tubing, expansion of the range of
manufactured products, safe working conditions of the service staff.
Auth.
6.C4.3. Preparation of activated manganese dioxide. /J. Shengelia, T. Agladze, L. Kapanadze, J. Gvelesiani,
The
optimal conditions for preparation of the activated manganese dioxide by
treatment of the Chiatura second-grade peroxide and first-grade metallurgical
concentrates were studied. It was shown that the electrochemical activity of
the peroxide concentrate is close to the correspondent activity of the
electrolytic manganese dioxide, while the electrochemical activity of the
material produced by treatment of the metallurgical grade concentrate is about
87% of the activity of the electrolytic manganese dioxide.
Auth.
6.C4.4. Diagnostics
of the copper-phosphorous solder fusion by a thermophysical technique. /B. Schukin, G. Jandieri,
Peculiarities of the
copper-phosphorous solder fusion control and management are considered.
Advantages of the thermophysical technique in the process diagnostics are
grounded. By interpolation of the thermograms and copper-phosphorous
constitution diagrams, a mathematical expression of the fusion diagnostics, in
particular, for analytical phosphorus testing in the melt is obtained.
Auth.
6.C4.5. Adhesion strength of secondary
dispersion-reinforced thermoplastics at different testing temperatures. /N.
Kheladze, D. Kiria/. Novation. –
2009. – #5 – pp. 138-143. – rus., res.: geo., rus., eng.
The adhesion strength
of secondary polyolefin compositions against the filler in the binder-fiber model
system has been studied. Measurements were carried out from the liquid nitrogen
temperature (-1950) up to +1200. It is determined that,
close to the vitrification temperature and above, the adhesion strength in the
polymeric material-fiber system does not practically depend on the specimen
size, both in respect of the primary and secondary thermoplastics. The
temperature dependence of the adhesion strength of different systems has an
extreme character, its maximum being observed in the polyolefin vitrification
temperature range. An increase in temperature leads to a gradual decrease in
the adhesive strength, being especially notable in the polymer softening
temperature section, verging to zero. Other
examples of adhesion strength changes are given.
Auth.
6.C4.6.
Study of the outcomes of the permanent effect of copper ions on natural
populations of wine yeast. /A. Shatirishvili,
Resistance
of natural populations of Anaga (Kakheti) and Surebi (Guria) wine yeast to
copper ions has been studied. 250 strains of each population have been
investigated. Both populations have been found polymorphic to the investigated
trait. The Anaga population, in contrast to the Surebi population, has been
subjected to the effect of copper ions for decades. As a result of natural
selection, a great number of resistant strains have been accumulated in the
Anaga population. A genetic analysis has established that out of 10 strains of
the Anaga population 6 contain two resistance determining SMF1 and SMF2
dominant genes. The studied strains of the Surebi population have only one
active locus.
Auth.
C5. Mechanical
Engineering. Instrument-making
6.C5.1.
Construction of surfaces using first-order tangent transformations. /N.Abuladze,
M.Chelidze, T.Shukakidze/. Transactions of
Surfaces
are constructed on the basis of the first-order tangent transformations by
means of a direction vector equation. Here the surfaces, which are supposed to
be variety of the tangential elements, are chosen as a prototype and basic
figures. The device allows us to construct surfaces according to specified
positional and differential – geometric conditions, which are the prerequisite
for machining parts of an irregular shape on a machine–tool.
Auth.
6.C5.2. Kinematics of an improved brake rigging of electric
train’s motor car. /G. Sharashenidze,
M. Dolidze,
The
ideal kinematical parameters of the given brake rigging are determined. The respective formulas necessary for
analytical study of kinematics of any brake rigging are obtained.
Auth.
6.C5.3.
Research of the influence of backlashes on dynamic parameters of the main drive
of machine units. /R. Adamia,
The general method of calculation of dynamic characteristics
of the rolling mills on different stages of machine starting, taking into
account the co-existence of gaps in the drive transmissions is proposed.
The analytic dependence between the values of gaps and additional
forces (of impact character) influenced by tem is established.
Auth.
6.C5.4. Peculiarities of analysis and design
of washing machine drums. /T. Uriadmkopeli, M. Gurgenidze, O.
Purtskhvanidze/. Novation.
– 2009. – #5 – pp. 110-114. – eng., res.: geo.,
rus., eng.
The work deals with
the issues of analysis, design and modernization of washing machine drums,
gives the methods of determination of the main technological parameters of the
running drums. The necessity of rational analysis and calculation of the
technological parameters of the drums and their science-based planning is
experimentally justified and grounded.
Auth.
6.C5.5. Terminal ballistics of smoothbore
firearms. /A. Khurtsilava, Z.
Mardaleishvili,
This article considers
the issues of terminal (final) ballistics of some types of bullets designated
for smoothbore weapons with the application of a mockup target, being an
effective substitution of soft tissue of a biological object in terms of its
physical-technical characteristics; the issues of the theory of interactions of
physical processes are considered.
Auth.
6.C5.6.
Design of alternative combustion chambers for a multijet sprayer. /V. Gvetadze, G. Purtskhvanidze, D. Chogovadze, L. Gogisvanidze/. Novation.
– 2009. – #5 – pp. 228-231.
– rus., res.: geo., rus., eng.
In designing a combustion
chamber for a multijet sprayer, the basic attention is given to expanded
chambers. They can be classified by several chief features. The first essential
feature shall be the combustion chamber’s ability to intensify carburetion at
the expense of the toroidal vortex displacement. Another essential feature is
the shape of the forming lateral wall of the combustion chamber. Out of the
existing combustion chambers, 4 principal types are considered: open, closed
and combined.
Auth.
6.C6.1. Lengthening of the boxcalf leather
for the footwear upper. /M. Karkashadze,
T. Maghlakelidze, L. Shanidze/. Khandzta. – #2(7). – pp. 173-176. – geo.; res.:
eng., rus.
Among the
mechanical properties of leather, lengthening is of a special importance.
On the basis of the carried out research, it is established that the boxcalf
leather lengthening standard upon 10 MPa
load should be replaced with the standard upon rupture or constant load (10
kn/m) according to the width. The determination of such lengthening should
be organized at all leather dressing enterprises during a year, one of
the indicators be fixed on the basis of the obtained data, and standards be
recommended. Similarly, the uniformity factor for leather lengthening in all
directions should be fixed.
Auth.
6.C6.2.
Theoretical and manufacturing bases of computer design of ready-made garments. /O.
Kardash/. Georgian Scientific News. – 2009. - #3. – pp. 14-18. - rus.; res.: geo., eng., rus.
Directions
of computer software development in the clothing manufacture are shown and
their disadvantages are defined. Classification of computer software directions
in computer design is developed. The objective and principles of computer
design are formulated. The achievement of this objective is shown by examples.
Auth.
6.C6.3.
Development of basic criteria of sex and age related classification system
formation of footwear. /M. Grdzelidze, A. Katamadze, M.
Shalamberidze/. Georgian Scientific News. – 2009. - #3. – pp. 22-26. - rus.; res.: geo., eng., rus.
The
importance of standardization of the differentiation of the juvenile population
according to the foot size is shown. From this point of view: current situation
and existing sex and age related classification system have been analyzed.
Anthropometric research of 10-17 year old teenagers have been carried out; as a
result of the obtained information, the basic statistical parameters and
regulations of size differentiation have been revealed; the base and basic
criteria for formation sex and age related classification system by the new
method have been developed.
Auth.
6.C6.4.
New methods of sex-age specific classification formation to provide juveniles with
convenient footwear. /M. Grdzelidze, A. Katamadze, M.
Shalamberidze/. Georgian Scientific News. – 2009. - #3. – pp. 26-29. - rus.; res.: geo., eng., rus.
The
importance of standardization of the differentiation of juveniles in
Auth.
6.C6.5.
Structural-logical model for formation footwear assortment. /S.
Garkavenko/. Georgian Scientific News. – 2009. - #3. – pp. 32-37. - rus.; res.: geo., eng., rus.
The
structural-logical model of the footwear assortment formation is given. As a result of the carried out research, the structural-logical
model of the range of footwear made of leather and other materials is designed,
for manufacture of which enterprises are being specialized based on a complex
analysis of the portfolio of the subjects of monopolistic competitive market. The
assortment so analyzed requires further detailing, taking into account the
stochastic environmental factors that influence the demand for the enterprise’s
products. A follow-up study for perfecting the assortment formation methods
should take into account other factors, such as seasonality and uncertainty, as
well as additive components on the basis of the models of dispersive and covariance
analyses. The major stages of the company trade portfolio formation process are
determined. On the basis of a complex portfolio analysis, a logical model of the
assortment formation is offered.
Auth.
6.C6.6.
Research of a possibility of technological parameters improvement for flat knitting machines. /Z.
Vadachkoria/. Georgian Scientific News. – 2009. - #3. – pp. 38-40. - rus.; res.: geo., eng., rus.
The
possibility of technological parameters’ improvement for flat knitting machines
is discussed. A stretching device of set loops for flat knitting machines of
the type ÏÂÊÌ and ÏÂÐÊ is developed, which exceeds by its technical parameters
the existing ones. It enables improving the loop setting process and quality of
the produced knitted garments. The device does not complicate the machine’s
design and service or affect its technological possibilities; on the contrary, using
of a supplementary feeder, enhances the patterning possibilities of the
machine.
Auth.
6.C6.7.
Development of knitted filters for technical purposes. /Z. Vadachkoria/. Georgian Scientific
News. – 2009. - #3. – pp. 40-42. - rus.; res.: geo., eng., rus.
The
materials for development of technical textile, in particular technical
stockinet are given. An analysis of the existing woven filters with their
positive and negative aspects is made. The requirements to the technical
filters are shown. An analysis of knitted loops is made and the knitted loop
which best meets the set requirements are chosen. The advantages of using
stockinet against the existing woven filters are given and the corresponding
conclusions are made.
Auth.
6.C6.8.
Research of operation of a filling thread compensator of a pneumatic rapier weaving
machine ÀÒÏÐ-120
upon lapping of rotor spinning cotton yarn ÁÄ-200. /O. Purtskhvanidze,
M. Gurgenidze, T. Uriadmkopeli/. Georgian Scientific News. – 2009. - #3. – pp.
43-46. - rus.; res.: geo., eng., rus.
The
principle of operation of the filling thread compensator of the loom ÀÒÏÐ -120 upon one shaft revolution is
analyzed. The thread movement speed through the eye of the compensator, angles
of bending, loop length, tension of the lapped filling thread at various
distances are formulated. It is established that the angles of bending of
lapping yarn reach the maximum value in the lowermost position of the
compensator that gradually reaches the minimum value upon initial lapping of the
filling thread through the mouth. It is shown that the loop length in the
compensator’s eye is also maximal in the lowermost position and minimal upon
meeting of the right and left rapiers. The maximum lapping speed of the filling
thread corresponds to the movement of the left rapier through the mouth.
Auth.
6.C6.9.
Study of factors influencing shrinkage of textiles. /N.
Ghintibidze,
It
is shown that quality improvement of textile materials depends on many factors
and first of all requires the knowledge of textile material properties, their
correct and accurate estimation, objective appreciation and control of their
quality parameters, the influence of deteriorative factors on the product quality.
As it is known, textile materials tend to change a linear dimension which is
conditioned by a number of factors. First of all, it is swelling, relaxation
and friction between fibers and threads. All these factors are interconnected, which
enables additional study of their impacts on the shrinkage. 22 samples of
clothes and fabrics are chosen for studying. They are grouped according to the fibrous
structure in the following order: cotton - 33.3%, wool – 22.2%, flax – 11%,
silk – 28.5%. The shrinkage of surface fabrics is determined by a new technique
developed by the authors. The dependence of the set of wrap and the set of weft
on shrinkage and air permeability is determined. The comparison of the obtained
result demonstrated that the shrinkage studied by our technique decreased in the
samples 2, 3, 5, 6, 7, 9, 13, 15, 16, 18, 19, 22 and increased in the samples
1, 4, 5, 8, 10, 11. However, such differences cannot be considered as
deterioration of properties, as the difference is not big and it does not
depend only on conditions of operation. For the purpose of establishing a regulation
between the above-mentioned parameters, the obtained results are processed by
methods of mathematical statistics, using two-factor and multifactor analyses. The
coefficients of correlation and regression equations are calculated, and the regression
equations are constructed for both the normalized and natural variables.
Auth.
6.C6.10.
Measurement of humidity for fibrous materials. /A. Khurtsilava, N.
Kanteladze,
The
peculiarities of measurement of specific humidity of fibrous materials by means
of electrical method are shown. It is indicated that fibrous materials have
both the active and reactive conductance and are characterized of the
polarization current at the dc voltage, which is associated with the
measurement error. For measuring humidity at the alternating voltage, the
capacity method is recommended. An analysis of the design of condensers is
given, on the basis of which it is established that capacitor transducers
cannot provide input and removal of materials in the gauge and cannot ensure accuracy
upon non-uniform distribution of moisture in the materials. For reducing the
measurement error caused by non-uniform distribution of humidity in the
material and density changes and for preserving the transducer operation
condition, it is recommended that the capacitor transducer be designed as a
plane-arranged electrode condenser.
Auth.
6.C6.11. The
diabetic foot and requirements to diabetic footwear. /A.
Katamadze, M. Grtzelidze, M.
Shalamberidze/. Georgian Scientific News. – 2009. - #4. –
pp. 11-14. - rus.; res.: geo., eng., rus.
The
forces affecting the human foot and hence the peculiarities of a rational
design of diabetic footwear are discussed. The causes of the foot and the whole
organism pathologies are analyzed and the flat-foot causing symptoms are shown.
The importance of diabetic footwear in the prevention of diabetes mellitus is
given. Proposed are five characteristics developed as a result of the study
that should be taken into consideration when choosing and wearing diabetic footwear,
especially orthotics. The importance of collaboration of podiatrists,
endocrinologists and diabetic footwear makers for manufacturing such therapeutic
footwear is underlined.
Auth.
6.C6.12.
Device and technique of string friction coefficient at movement on thread guide
surface. /M.
Gogoladze, A. Badzgaradze,
The
dependence of the constant of friction on the thread speed and pressure on the thread
guide surface, in particular in the yarn removal device of a pheumomechanical
spinning machine is established. It is shown that an increase in the yarn
tension upon increase of the radius of funnel inlet hole occurs at the expense
of pressure reduction and, consequently, upon increase in the constant of
friction. It is established that the application of a spiral leads to an
increase in the yarn tension, of the yarn speed and, consequently, of the
constant of friction.
Auth.
6.C6.13.
Importance of special footwear for diabetics. /A. Katamadze, M.
Grtzelidze, L. Schalamberidze, L. Chubinidze/. Georgian Scientific News. –
2009. - #4. – pp. 17-20. - rus.; res.: geo., eng., rus.
An
information survey of the state of diabetic people, whose number has
dramatically increased all over the world, is given. A similar situation is observed
in
Auth.
6.C6.14.
Influence of the electrostatic charge in clothes on children’s health. /N.
Ghintibidze,
The
value of electrostatic charge is determined on the device HB 3-2 offered by the
authors. The electrostatic charge value is measured in the textile materials used
in children’s clothes. The recommendation of the materials to be used in the manufacture
of baby clothes is given. The existence of human being in any environment is
connected with the influence of electromagnetic fields. In the case of
motionless electrical charges we deal with electrostatic fields. Together with
natural static electrical fields under condition of technosphere and in life,
people are subjected to the effects of artificial electrostatic charges. They
affect the nervous and cardiovascular systems. According to the charge value,
the studied samples have been grouped in the following order: cotton yarn, silk
thread, viscose thread, viscose staple fiber yarn, acetate staple fiber yarn,
wool yarn, Capron staple yarn, Capron complex thread. The most undesirable in
manufacturing children’s clothing is the Capron complex thread.
Auth.
6.C6.15.
Improvement of construction method of dummy surface development. /M.
Datuashvili,
The
question of dummy surface development by means of an arch notch method is
discussed. The process of breadboarding obtained by the existing method has
shown complete discrepancy of development details to the form and sizes of the
dummy. For elimination of the mentioned discrepancy, a special dummy surface
investigation device has been developed (making it possible to determine a distance
between two points on both the dummy and any curved surface), as well as a
technique of a dummy surface construction. The surface development obtained by
means of the developed technique is characterized by high accuracy and
completely corresponds with the surface of the object under study.
Auth.
6.C6.16. On
a new method for studying the exterior of a human body. /M.
Datuashvili,
The
questions of research of the exterior of a human body, body frame and
construction are discussed. The issues of the exterior form research of a human
body deserve special attention in the improvement of military uniform design
methods. On the basis of the research analysis, a new type of gadget is
developed for researching the human body build. On the basis of a comparative
analysis of the human body build carried out by the existing and developed
methods, the degree indicators of the angle between the straight spots in the
upper parts of the backbone are established; recommendations on establishment
of the type of body build of military personnel are developed on the basis of the
carried out research.
Auth.
6.C6.17. Distribution of appendages on
different parts of clothing depending on the item’s shape and the material
applied.
/L. Lursmanashvili,
When
designing clothes, attention should be paid to appendages, the sizes of which
should be in line with the shapes, patterns, materials, outfit, and design of
clothes, the person’s body build features, etc., so that a rational clothing
design is obtained.
Auth.
6.C6.18.
Determining the thread form and tension in the feeder of a spinning and
twisting device. /M. Gogoladze, I. Khurtsilava,
Analytic
dependences determining the form of a cylinder and thread tension in the feeder
of a rotary spinning and twisting device upon manufacture of twisted core-spun
yarn are obtained. A substantial growth of the twisted thread tension in the feeder
and the cylinder shape of the fed thread are established.
Auth
6.C6.19.
Study of the structure of a thickener modified with bentonites. /E.
Buadze, M. Sharabidze, R. Bochorishvili/. Georgian Scientific News. – 2009. -
#1. – pp. 37-43. - eng.; res.: geo., eng., rus.
The
aim of the present work was to study the structure of a thickening agent having
been modified with bentonites by means of X-ray phase analysis. According to
the outcome of X-ray phase analysis, the following conclusion is made: manutex
and bentonites form a polymeric system, in which montmorollonite is set on the
polymeric structure of manutex that causes its chemical modification. It is
determined that after printing, the thickener-contained bentonite remains on the
amorphous parts of the fibroin (manutex being completely washed). Being a perfect
sorbent, the remained bentonite absorbs additional amount of dye, as a
consequence of which the coloring power increases
Auth.
6.C6.20.
Weaving looms with flexible foil and their use for producing decorative fabrics
for furniture. /N. Abesadze,
The
work gives characteristics of weaving looms with flexible foil and kinematic
scheme of its preparation. We have researched the driving peculiarities of high
density weft yarn, including fashion yarn, also conditions of convolutions of
the fashion yarn from two different types of weft bobbins. Recommendations for
using “rocket” shaped bobbins for weaving is given.
Auth.
6.C6.21.
Development of knitted fabric for technical purposes. /Z.
Vadachkoria/. Georgian Scientific
News. – 2009. - #2. – pp. 50-52. - rus.; res.: geo., eng., rus.
The
possibility of obtaining knitted fabric for technical purposes on the loom with
a shutdown press is discussed. Six variants of knitted fabrics have been
developed which differ from one another in thread laying and applied raw
materials. The pieces of knitted fabric have been studied for the following
parameters: longitudinal and transverse breaking tension, durability,
hygroscopic property, air permeability. The cotton-yarn knitted samples are
characterized of high hygienic properties – high hygroscopic property and air
permeability, but have very law durability. But the stretch-thread knitted
samples are characterized of high physical and mechanical properties and low
hygienic parameters. The cotton-yarn knitted variants combined with stretch
thread have been found to possess the best properties of both raw materials. It
is shown that for knitting fabric for technical purposes is expedient to use
combination of cotton yarn and stretch thread.
Auth.
6.C6.22. Research of the process of yarn winding
on ÁÄ-200 and ÏÊ-100 spinning machines. /O.
Purtskhvanidze, T. Uriadmkopeli, M. Gurgenidze/. Novation. – 2009. – #5 – pp. 120-123. – rus.,
res.: geo., rus., eng.
The article deals which
research of a mathematical model of the yarn winding process
with the help of first-order differential equation of drawing of a uniform and
perfectly elastic product. The formula, worked out as a result of the research,
defines the product drawing on the machine; the process of yarn winding is followed
by the first-order drawing.
Auth.
6.C6.23. Research of balloon parameters during
the winding of twist yarn from cylindrical bobbins of the PK-100 machine. /O.
Purtskhvanidze, T. Uriadmkopeli, M. Gurgenidze/. Novation. – 2009. – #5
– pp. 124-128. – rus., res.:
geo., rus., eng.
The article deals with variation of the balloon parameters during rewinding
of yarn from the cylindrical bobbin of the PK-100 spinning and twisting machine. Cotton yarn of 15, 4
text×2, 178, 5 text×2 and 37 text×2 has been used in the full-scale
experiment. Four types of variable winding speed have been selected for each
yarn: 10; 13,3; 16,6 and 20 m/second. Strain-gage recording, study of the balloon
shape variations across the different diameters of the bobbin, and other processes were carried out during the
experiment. As a result, the balloon parameters during winding of the
twist cotton yarn on the PK-100 machine have
been experimentally determined. The theoretical and experimental dependences of
the thread tension have been compared.
Auth.
6.C6.24. Research of an analytical method of
conditions of manufacture of an accidental bed of rotor yarn in the course of twisting. /M.
Gogoladze, Z. Maglaferidze/. Novation. –
2009. – #5 – pp. 129-133. – geo.,
res.: geo., rus., eng.
For
reducing a share of blanket fibers of a rotor yarn, it is necessary that
the yarn rigidity during twisting be increased. Although, it not so efficient
and insignificantly influences the yarn durability.
Auth.
6.C6.25. Analysis of the properties of a pure yarn produced by a
pneumomechanical way of spinning. /M.
Gogoladze/. Novation. – 2009. – #5 – pp.
134-137. – geo., res.: geo., rus., eng.
The paraffining
of the pneumomechanical yearn leads to a reduction of durability parameters,
with the concurrent reduction of the yarn hairiness. In order to increase the
number of fibers in the cross section and preserve elasticity, fibers of low
linear density are used. This has a positive effect on the yarn quality,
increasing its durability and reducing irregularity along the linear density.
Auth.
6.C7.1. Food safety and market formation
principles and peculiarities. /N. Jabnidze/. Khandzta. – #2(7). – pp. 122-125. – geo.; res.:
eng., rus.
The
article deals with food safety problems and the current state of the agricultural
products market functioning in
Auth.
6.C7.2. Experimental grounding of parameters
of dry tea selective breaking. /Z.Japaridze/. Khandzta. – #2(7). – pp. 137-139. – geo.; res.: eng., rus.
The
optimal values of parameters of dry tea selective breaking are experimentally
grounded. A roller tea breaking machine has been designed
as a laboratory device, which makes it possible to change the operating
factors in the given intervals. The
criterion determining technological efficiency of separation of a two-component
blend in two fractions is accepted as a criterion for estimating the
experiments, the extreme value of which is being found by using the simplex method.
As a result, it is concluded that the highly effective selective breaking
of dry tea is achieved under conditions of the minimum values of the rollers’
diameter of the breaking machine and low solidity of its elastic surface.
Auth.
6.C7.3. Utilization of wine production waste
in the making of rum. /T.
Rukhadze, P. Toroshelidze/. Science and Technologies. – 2009. - #7-9. –
pp.111-114. geo., res.: eng., rus.
The
utilization of wine production waste in the rum-making technology is a rather
important subject and presents a technology novelty. A new strain of yeast and
was used and the sugar-cane raw material was fermented with wine production
waste, in particular the grape seeds and skins. Hence it means that the
endogenic alcoholic yeasts have been substituted with natural yeasts of the
endogenic wine. The wine aroma and flavor can easily be perceived in the drink
so made.
Auth.
6.C7.4.
Concentration of extracts by reverse osmosis in the production of non-alcoholic
drinks. /Sh.
Rukhadze, R. Lomaia, A. Aptsiauri,
The
work deals with the possibility of concentration of vegetable extracts (eleuterococcus,
St.-John's wort, and liquorice) by means of a reverse osmosis. Technological
processes of the preparation of extractive and flavor components of the non-alcohol
drink are described. The osmotic pressures of vegetable extracts and regime
parameters of the processes of concentration by reverse osmosis are determined.
Auth.
6.C7.5.
Technology of a new kind of vegetable aromatizer
remedy and bioproduct from the feijoa fruit (Feijoa sellowiana Berg).
/G.Ghvaladze/. Novation. – 2009. –
#5 – pp. 90-95. – geo., res.: geo., rus., eng.
The
feijoa fruits are rich in essential oil, iodine microelements and pectin. The feijoa fruits are characterized by high flavouring qualities, taste of
exotic banana and pineapple aroma. Proceeding from this, the technology of
production of a new aromatizer by using the feijoa fruits, known as “feijoa”
and “feialcol” has been worked out. The aromatizer is used in the production of
various products, including alcoholic drinks, new kinds of liqueur, fruit
drinks, wines, etc. In addition, the feijoa fruits were used to make a new
biopreparation, which contains iodine microelements and can treat the thyroid
gland dysfunctions and the concomitant pathologies. The proposed product has
good prospects for introduction in the food and pharmaceutical industry with
the resulting social and economic effect.
Auth.
6.C7.6. Microwave drying of the secondary grape
processing products. /E. Pruidze, G. Khetsuriani, A. Ghvinepadze/. Novation. – 2009. – #5 – pp. 101-104. – geo.,
res.: geo., rus., eng.
The work
considers the convective and microvawe drying of the grape processing waste
– husks of various white grapes. The microvawe
drying has been found to considerably increase the drying speed and reduce its
duration by 3-4 times.
Auth.
6.C7.7. A new range of cookies using the
secondary grape processing products. /G. Khetsuriani, E.
Pruidze,
The main
tendency of contemporary confectionary industry is wide application of natural
ingredients and orientation to the concept of healthy diet. A dry white powder is
produced from the blend of squeezed skins of various white sorts of grapes to
be added to the reference formulas of ship’s biscuit and cracker in the amount
of 5, 10, and 15% of the flour weight. The reference samples are made in
compliance with the traditional technology. An analysis of the half-finished and
finished products has shown that the optimum quantity of the added powder is
10%. The obtained product is in full compliance with the relevant standards.
Auth.
6.C7.8.
Storage of finished tea under conditions of reduced atmospheric pressure in the
presence of inert gas. /K. Kintsurashvili,
R. Melkadze/. Novation. – 2009. – #5 – pp. 241-245. – geo., res.: geo., rus., eng.
The
storage of finished black tea under conditions of the reduced atmospheric
pressure and in the presence of an inert gas (nitrogen) is investigated. It is
shown that during 12 months, the quality indicators of the test tea remain unchanged,
whereas under ordinary storage conditions the tea quality worsens by 1-2
categories. The obtained results allow considering of the proposed method of
tea storage as an effective and secure means of preserving the initial chemical
and quality indicators of the product.
Auth.
C8. Construction. Architecture
6.C8.1. Definition
of optimum parameters of three-rod truss. /B. Gvasalia, D.
Jankarashvili, T. Sherazadishvili/. Transactions of
A
mathematical model of a three-rod truss is determined. A problem of optimal
selection and design of sections of a three-rod truss is set to minimize the
truss weight and to comply with the requirements to rod durability, hardness
and stability the truss. A set of applied programs using the random search
algorithm for searching for the global extremum has been developed.
Auth.
6.C8.2.
Testing of a reinforced concrete construction element for bending, vibration
and identification of its initial rigidity. /I. Kvaraia,
The
development of modem computer technologies allows controlling the constructions
in an uninterrupted automatic regime. This requires that the information on
test results is to be obtained through the existing converters and transformed
in a form that is easy to process. Therefore, during any test, it is necessary
that, first of all, the test parameters be identified and the methodology for
their identification selected. In order to identify the parameters in their
entirety, which are important at any stage of the strained deformed
state of bending reinforced concrete constructions, a simple methodology has
been developed. In addition, the initial dynamic and static rigidities have
been established and compared with the theoretical value of the rigidity.
Auth.
6.C8.3.
Deformation of light concrete at cyclic pressing tension.
/I.Kvaraia,
Auth.
6.C8.4.
Questions of formation of the architectural environment and interior of family
hotels in high mountainous
regions of
The
role of tourism as one of the leading directions in terms of socio-economic development
in the 21st century world economy is considered. Tourism is an
important source of economic wellbeing and the creation of a competitive
network of family hotels in the resort areas of Georgian is a priority task. Pshav-Khevsureti
– the most scenic and original region, located on a complex mountainous natural
landscape and rich in architectural and historical monuments, represents the
most promising region for the purpose. The article deals with the urgency,
objectives, problems, the ways of their handling, as well as the outcomes of
familiarization with and analysis of the tourist–recreational resources of the
region and their implementation for
developing specific planning proposals and recommendations on the construction
in the region of appropriate family hotels and adapt the available housing for
the purpose.
Auth.
6.C8.5.
Determination of factors influencing operation regimes of machines and their
importance for fracturing asphalt-concrete pavements. /M.
Baratashvili/. Georgian Scientific News. – 2009. - #4. – pp. 57-62. - rus.; res.: geo., eng., rus.
The
necessity of determination of effective methods and specific operation regimes
for machines designated for asphalt-concrete pavements regeneration is
substantiated. The results of theoretical and experimental investigations of
asphalt-concrete pavement cutting processes are considered and analyzed. The
nature of basic factors influencing the cutting process of paving materials is
defined The substantiation of specific geometrical properties of the cutting
elements and values of indices, such as warming-up optimal temperature and
speed of cutting of asphalt-concrete pavements, obtained on the base of
analysis of the concrete experimental investigations, are given. The specific
mathematical dependences for determination of operation regimes of machines
repairing the road pavements are given. The dependence of stress value
calculation directed to the cutting element of the machine’s operating unit is
given together with the specific values of basic calculating parameters
conditioning the loads on the machine’s operating units.
Auth.
6.C8.6. The
tunnel building experience using the New Austrian Tunneling Method. /M. Grdzelishvili, A.
Tskvitinidze/. Science and Technologies. – 2009. - #7-9. – pp.82-85. geo., res.:
eng., rus.
The
New Austrian Tunneling Method (NATM) is widely used in construction of
underground structures. The article considers in detail the advantages of this
method and the examples of its application in many countries of the world.
Auth.
6.C8.7. Does the country need construction managers?
/A.
Sokhadze, J. Chogovadze, R. Makhviladze/. Building.
– 2010. - #1. - pp. 6-10. – geo.; res.:
geo., rus., eng.
Under
conditions of modern market economy, the creation of the investment environment
and its provision with labor and material resources in the construction sector are
managed by qualified staff having obtained the knowledge in the spheres of
construction economy, marketing and management. The local building and
developing companies lack qualified personnel in this respect, which greatly
affects their financial standing and goodwill. The authors think it necessary
that the
Auth.
6.C8.8. Peculiarities of foundation, computer
simulation and design of drinking water
reservoirs in Salibauri. /J. Gigineishvili,
The article deals with the results of a comprehensive study carried out
by means of the up-to-date hardware and software facilities necessary for
reliable foundation and construction of buildings and structures under
conditions of complicated geological and hydrogeological conditions, given the
static and seismic loads. To analyze the mode of deformation and stability of
the slopes and the reservoir, different software has been applied, including
the software complex LIRA 9.4.
Auth.
6.C8.9. Simplified method of continuous beam
analysis. /Z.
Madzagua, R. Tskhvedadze, D. Tabatadze, D. Jankarashvili/. Building. – 2010. - #1. - pp. 17-21. – geo.; res.: geo., rus., eng.
A new approach
to the analysis of continuous beams by force method is given, which consists in
the application of image patterns in determining coefficients of canonical
equations set and free terms of the method.
Auth.
6.C8.10. Preparation of inexpensive concrete using
ground limestone. /G. Baliashvili, L. Gurgenidze, N.
Gureshidze, A. Meburishvili, R. Samadashvili/. Building. – 2010. - #1. -
pp. 30-35. – geo.; res.: geo., rus., eng.
The efficiency of
using ground limestone in the preparation of concrete is discussed. By adding ground
dolomitic limestone (from Tskaltubo), the strength of concrete increases by
40%. The use of the same material instead of quartz sand increases the strength
of concrete by 50%, reducing the cost of 1 cu m of concrete decrease
by GEL 8-10.
Auth.
6.C8.11. The basic principles of spatial planning
of the town of
The article deals
with the necessity of the conduct of reconstruction and planning work in the
town of
Auth.
6.C8.12. Heredity in Georgian architecture. /M.
Begiashvili/. Building. – 2010. - #1. -
pp. 51-59. – geo.; res.: geo., rus., eng.
General tendencies of generation and
development of Georgian orthodox, religious cross-domelike architectural
monuments from the 4th to the 13th century inclusive are reviewed in the
article. The main stages of Georgian architecture development, beginning from
the architectural construction art of the early Christian period and ending
with the Middle Ages monuments are presented. Also presented are the creative
regularities worked out in the architecture by the use of which the composite
structure of Georgian national monuments was formulated. The accumulated
creative experience was transferred from generation to generation serving as the
basis for the Georgian-national architectural-artistic unity and for creating
diversity in this unity.
Auth.
6.C8.13. Kaspi zeolitic tuff as a building
material. /Z. Karumidze, A. Chikovani, G.
Bokhashvili, M. Kiknadze/. Building.
– 2010. - #1. - pp. 65-68. – geo.; res.:
geo., rus., eng.
The possibilities of
using the zeolitic tuff located in Kaspi district as a building material are
investigated. The tuff has been found to posses perfect heat-insolating properties.
Auth.
6.C8.14. Specification of probable zones of damaging factors for
the purpose of ensuring the security of oil terminals. /M. Tsikarishvili, G. Eragia/. Building.
– 2010. - #1. - pp. 69-74. – geo.; res.:
geo., rus., eng.
The
emergencies having taken place in oil terminals within the last decades are
reviewed and analyzed with the specification of the probable zones of damaging
factors.
Auth.
6.C8.15. Night city illumination history. /G.
Abuladze/. Building. – 2010. - #1.
- pp. 75-79. – geo.; res.: geo., rus.,
eng.
During many years,
the night-time illumination has assumed an important function, given that urban
life remains to be active in the evening and night hours as well. The
full-value night-illumination of the city requires the creation of
comprehensive and many-sided systems. The constituent elements of these systems
have of a special influence on the people and hence the study of this sphere
acquires a special importance in the formation of the city’ artistic appearance.
The issues of nigh-illumination history of the City of
Auth.
C9.
Agriculture and Forestry. Fishery
6.C9.1. Genetic peculiarities of splitting
of separate signs of the tea plant depending on the action of anthropogenic
factors. /D.
Baratashvili/. Khandzta. – #2(7). – pp. 118-121. – geo.; res.:
eng., rus.
The genetic peculiarities of splitting some signs of
the tea plant natural mutant forms in M2, depending on the pollution
of the ecological zone by the ionizing radiation and heavy metals
are considered. It is shown that the inheritance of the tea plant separate
mutant signs depends on the ecological zone of cultivation.
Auth.
6.C9.2. Hazelnut productivity in the Black
Sea subtropical zone of Georgia. /N. Jabnidze/. Khandzta. – #2(7). – pp. 126-130. – geo.; res.: eng., rus.
The problems
of promotion on the part of the state of the production of hazelnut crop in
West Georgia, one of the most priority directions in the country’s agriculture,
as well as the species composition of the crop are considered.
Auth.
6.C9.3. The tea leaf P factor activity depending
on the leaf age and sort of sprouts. /M. Imnaishvili,
A. Kipiani, N. Oragvelidze/. Khandzta.
– #2(7). – pp. 131-133. – geo.; res.:
eng., rus.
The tea
leaf phenol compounds are studied as a quantitative indicator of the vitaminous
activity change, depending on the leaf age, sort and softness of the sprouts.
It is shown that the high vitaminous activity is observed in the beginning
and middle of the season, especially in the green tea made from the upper
1-2 leaf soft sprouts.
Auth.
6.C9.4. Sericulture development and review
of cocoon processing. /Z. Vadachkoria, N.
Idadze/. Khandzta.
– #2(7). – pp. 177-179. – geo.; res.:
eng., rus.
Silk is a
natural fiber characterized by the best consumer properties. In spite
of this, the silk has failed to hold its worthy place in knitting industry.
The goal of this work is to define the reasons that hinder the application
of silk in the manufacture of knitwork. For this purpose, the sericulture
development and cocoon processing history is surveyed.
Auth.
6.C9.5. Some agro-ecological properties
of roses. /I.
Mikeladze/. Khandzta. – #2(7). – pp. 183-184. – geo.; res.:
eng., rus.
On the basis of experiments and observations conducted
in Batumi Botanical Garden, the agro-ecological rules and norms (place
selection, planting, soil fertilization, scraping, etc.), which are
necessary for shaping rose bushes and cutting roses for rose bouquets
have been developed.
Auth.
6.C9.6. New
organizational forms of
Georgian forestry management. /A.
Zedginidze, T. Patarkalashvili, L. Zedginidze/. Science and Technologies. –
2009. - #7-9. – pp.115-117. geo., res.: eng., rus.
The
organizational structure of the forest management before and after its
reforming is considered. Both positive and negative aspects of the new
management structure are discussed. It is pointed out that the new
organizational structure of the Georgian forestry management does not meet the requirements
to forest sector under the present market economy conditions.
Auth.
6.C9.7. Peculiarities of seed production in
mountain beech stands in connection with selective cuttings. /K. Makhauri/. Science and Technologies. – 2009. - #7-9. –
pp.118-121. geo., res.: eng., rus.
The
beech begins good seed production at the age of 50-60 years and produces seeds
once in 3-5 years periodically. The beech seed production sharply differs in
even-aged and all-aged stands. In an even-aged stand, according to the Kraft’s
classification, only trees of a high class produce seeds. Unlike the even-aged
stand, in an all-aged stand, the trees of the first- and second-age generations
produce seeds, while the trees of the third-age generation do not participate
in the process. Both in the first and in the second case, thanks to selective
cutting of crowns and the creation of favorable conditions of illumination,
according to the Kraft, the trees of the
third-fourth class of the even-aged stand, and the trees of the third
generation - in the all-aged stand start to produce seeds. According to the
Kraft’s classification, the best seed production is characteristic of the trees
of the second class and the second-age generation.
Auth.
6.C9.8. A historical review of bee-keeping
and its development prospects in
Georgian bee–keeping
dates back to the 6th B.C. Some regions of
Auth.
6.C9.9. The effect of precursors and varietal
origin on winter wheat grain quality. /G. Bolgashvili/. Scientific Works of I. Lomouri Farming Institute of
The
varietal origin and precursors are very important to secure the winter wheat
grain quality. In the scientific-production experimental stations of the Georgian
Farming Institute (Magharo, Ulianovka, Shiraki), the effects of the varietal
origin and precursors on the winter wheat grain quality were studied.
Auth.
6.C9.10. To sow
annual and perennial grasses. /V. Rukhadze, K. Popkhadze, K.
Koranashvili,
Perennial
grasses are very important during crop-rotation. They are able to restore soil
productivity and improve its physical and chemical properties. We can restore
soil structure by sowing a mixture of perennial legume and cereal grasses. Therefore,
the right selection of perennial grasses is very important under diverse
natural conditions of
Auth.
6.C9.11. Increasing
soil productivity by modern agrobiological technologies. /N.
Bendianishvili, V. Rukhadze, K. Popkhadze, K. Koranashvili, E. Razmadze, J.
Saralidze/. Scientific Works of I. Lomouri Farming Institute of
The restoration
of soil productivity is possible only by using a mixture of perennial legumes
and cereal grasses with filamentous roots and rare bushes. The ratio of
components and soil cultivation technologies must be chosen correctly.
Auth.
6.C9.12. Study of the
production of high yield of green and seed material of alfalfa by a simplified
technique under irrigated conditions of Shida Kartli. /Q.
Popkhadze, T. Akhaladze, N. Bendianisvili,
At
present, alfalfa is cultivated using deep and repeated tillage before sowing,
which is connected with high expenses. The authors have set a goal to work out a
simplified technique for producing alfalfa hay and seeds under irrigated conditions
of Shida Kartli. Based on the three-year study results, its has been found that
a high yield of alfalfa can be achieved without the pre-sowing cultivation
through direct sowing in the disk-tilled or rotary tilled soil.
Auth.
6.C9.13. Alfalfa-ryegrass
mixture cultivation technology with minimum tillage under dryland conditions of
Shua (Inner) Kartli. /K. Popkhadze, T. Akhaladze A. Devidze, N. Bendianashvil/. Scientific Works of I. Lomouri Farming Institute of Georgia. – 2009. –
XXXXVI – pp. 28 -31. – geo., res.: rus., eng.
The experiment was carried out in 2001-2005 on non-irrigated
meadow-cinnamon soils of the research institute’s experimental station. The early
spring sowing of an alfalfa-ryegrass mixture on the said soils with minimal
tillage produced a full-value sprouting and high crop of green material. The preceding
crops were wheat, kidney beans and maize. As a result of two mowing a year on
the minimally tilled beans stubble field, 13.3 t\ha of green material was
produced. The method is rather cost-effective.
Auth.
6.C9.14. The effect of
mineral fertilizers on the productivity of winter wheat variety “Koper” on
meadow brown soils in long-term experiments. /K. Koranashvili, B.
Rukhadze, Q. Fofkhadze, N. Devdariani, N. Bendianishvili/. Scientific Works of I. Lomouri Farming Institute of
In
long-term trials, given the right crop rotation system and optimal fertilizer rates,
the application of
Auth.
6.C9.15. The
coefficient of utilization of primary nutrient elements by haricot bean, maize
and winter wheat from the soil and applied fertilizers. /K.
Koranashvili, V. Rukhadze, K. Popkhadze,
N. Bendianishvili. N. Modzgvrishvili/. Scientific Works of I. Lomouri Farming Institute of
The
coefficient of utilization of nutrient elements by haricot bean, maize and
winter wheat from the soil and applied fertilizer on the meadow brown soils
rich in potassium after application of the potash fertilizer has grouped as
follows: N>P>K; N>P. With an increase in the fertilizer rate, the coefficient
of utilization of nutrient elements (nitrogen and phosphorus) from the soil and
the applied fertilizer decreases; the potassium utilization coefficient from
the ground equals 5.9% for maize, 2.2% for winter wheat, and 1.4% for haricot
bean.
Auth.
6.C9.16. Intermediary
oat-mixed vetch and pure-sown vetch in grass arable rotation and under
conditions of sowing in succession in the
In
order to perfect the cultivation of an intermediary oat-mixed vetch and pure-sown
vetch, experiments were held and are being at the Ajameti experimental station.
The intermediary oat-mixed vetch and pure-sown vetch may be cultivated in the
late autumn, when the crop area is comparatively vacant. The role of intermediary
crops in intensive farming is very important and is a source of extra harvest
during the year.
Auth.
6.C9.17. The yield
capacity of haricot bean varieties and their suitability as a winter wheat
precursor in the wheat-growing regions of
The work
deals with the results of a study carried out at the Kakheti-based experimental
station of the Georgian Farming Institute to investigate the yield capacity of
haricot bean varieties and the possibility of their use as a winter wheat
precursor. Presented are the high-yielding haricot bean varieties and the
amount of organic remains in the soil together with nutrient elements according
to the varieties, as well as the study results concerning the early-ripening
varieties that ensure the accumulation of soil moisture and high yield of the
winter wheat harvest.
Auth.
6.C9.18. The
variety-dependent symbiotic activity of haricot bean in the cereals-groeing
regions of
The work
deals with the 2007-2008 study results concerning the symbiotic activity of haricot
bean varieties species carried out at the Kakheti-based experimental station. The
symbiotic activity variation is presented according to the haricot bean varieties
and the phases of their growth and development. The best haricot bean varieties
(Jvari, Porumbitsa, Mukhranela, etc.) and the phases of their growth and
development are identified and other. On display there are also those growing
periods (flowering, fill of grain) that under conditions of the zone provide
for the highly active symbiotic potential and intensive accumulation of molecular
nitrogen in the soil.
Auth.
6.C9.19. Buckwheat
cultivation under conditions of Gare (Outer) Kakheti. /D.
Kusikashvili, G. Bolgashvili/. Scientific Works of I. Lomouri Farming Institute of
The
experiments conducted at the Magharo-based experimental station in 1993-1996
have demonstrated that a relatively higher yield of buckwheat (by 1.0 and 1.7
c/ha, respectively) is achieved in case the inter-row sowing, with the
recommended sowing density of 2-3 million seeds/ha when the inter-row space
makes 45 cm, and 3 million seeds/ha, when the inter-row space is 30 cm. The
study results can be introduced in Sighnaghi, Dedoplistskaro, Sagarejo,
Gurjaani and other Georgian districts with similar soil and climatic
conditions.
Auth.
6.C9.20. Production
of ecologically safe tomatoes by green manuring under conditions of Mukhrani-Saguramo
plain. /A.
Saralidze, L. Nozadze, Ts. Bichiashvili,
N. Chobadze/. Scientific Works of
I. Lomouri Farming Institute of Georgia. – 2009. – XXXXVI –
pp. 59- 61. – geo., res.: rus., eng.
Against
the background of application of an organic fertilizer and green manuring, the plowing
down of vetch into soil significantly increases the quantity of hydrolysable
nitrogen, labile phosphorus and exchangeable potassium. The high yield of
tomatoes in the trial variants 1, 2, 8 and 9 sharply increased the taking up of
nutrient elements and their washout from the soil. In the case of green
manuring, the amount of nitrate nitrogen in tomatoes decreases, making about 36.0-104.0
mg/kg according to the trial variants.
Auth.
6.C9.21. Production
of virus free seed potato in the Georgian lowland. /L. Nozadze, Ts.
Bichiashvili, T. Tavadze/. Scientific Works of
I. Lomouri Farming Institute of Georgia. – 2009. – XXXXVI –
pp. 61- 63. – geo., res.: rus., eng.
According
to the conducted research, preference is given to the virus free seed material
of the Felicitas potato variety. The variety is early ripening; tubers sprout in
two weeks and can produce two harvests during one vegetation period. The harvest is almost virus free. The production
technique can be introduced almost on the whole irrigated lowland area of
Georgia up to 400-
Auth.
6.C9.22. Perfection
and specification of cultivation of dill
(Anethum graveolens) in Imereti lowland. /N. Chaganava, N. Nishnianidze, N. Chkhobadze/. Scientific Works of I. Lomouri Farming Institute of Georgia. – 2009. –
XXXXVI – pp. 64- 66. – geo., res.: rus., eng.
The work
deals with the results of an experiment on the perfection and specification of dill
cultivation carried out at the Tskaltubo-based experimental station. The
experiment was conducted on clay alluvial soils, where the maternal rock was
sandstone. To produce seed material, the
sowing is recommended to be made in the early spring – before the first of
April. A double-row band sowing is preferable. The distances shall be: 60 cm
between strips, 30 cm between rows, and 10-15 cm between plants.
Auth.
6.C9.23. The role of
mineral fertilizers in white head cabbage productivity raising. /N.
Chaganava, N. Nishnianidze, N. Chkhobadze/. Scientific Works of I. Lomouri Farming Institute of Georgia. – 2009. –
XXXXVI – pp. 67- 69. – geo., res.: rus., eng.
The
experiments held at the Tskaltubo-based experimental station have demonstrated
the following: (1) the obtaining of a high yield of white head cabbage on
average-yielding alluvial soils of Imereti lowland requires the application of
the NPK mineral fertilizers; (2) the optimum mineral fertilizer rates for the early-season
white heed cabbage variety “Kharisgula”
are N120P120K60 kg/ha; (3) the optimal mineral
fertilizer rates for the mid-ripening “Braunschweig Goruli” variety of the
white cabbage are N150P120K60 kg/ha; (4) in
the case of both varieties, the full rate of phosphorous and potash fertilizers
must be applied during the main soil cultivation, whereas nitrogenous
fertilizers should be applied fractionally: 1/3 - before planting, 1/3 - at the
first feeding the second feeding.
Auth.
6.C9.24. Study of the
effect of intercropping on the yield capacity of tomatoes. /N.
Nishnianidze, N. Chaganava, N. Chkhobadze/.Scientific Works of I. Lomouri Farming Institute of Georgia. – 2009. –
XXXXVI – pp. 70-73. – geo., res.: rus., eng.
Taking
into account the current deficiency of organic fertilizers in the country, the
study’s aim was to apply local organic fertilizers, or green manure, together
with mineral fertilizers to obtain a high yield of tomatoes under the lowland
Imereti conditions. The best results are obtained in the trial variant where
the green material of the oat-mixed vetch
experiment is plowed under as a green manure. The average yield of
tomatoes in the given variant totaled 238 c/ha, outyielding the check variant
by 68.9 c/ha, or 40%.
Auth.
6.C9.25. The
biological, economic and biochemical indicators of F2 generation eggplant. /Z.
Sapatov. E. Motiashvili, Z. Liparteliani/.
Scientific Works of I. Lomouri Farming Institute of
It
is experimentally shown that earlier hybrids are mostly obtained in the hybrid
combinations, where early parental forms participate in breeding. If one parent
in the combination is early and another one mid-early, most hybrids will be earlier
than their parents. The high-yielding hybrids are obtained from that
combination where the mother form outperforms the father form in yielding.
Auth.
6.C9.26. Fixing
chickpea sowing dates and their effect on chickpea grain yield. /P.
Vacheishvili, L. Kirikashvili/. Scientific Works of
I. Lomouri Farming Institute of
The article
considers the 2006-2007 results of a study of chickpea sowing dates. According
to the results, the best sowing date for 10 varieties can be considered the
pre-winter sowing, from the second half of November to the first half of March.
Auth.
6.C9.27.
Investigation of
The article
presents the results of a study concerning edible mushrooms and attempts of
artificial cultivation of the introduced and local mushrooms in
Auth.
6.C9.28. The effect
of the bacterial-organic-mineral fertilizer BOMS upon the kernel yield and
quality of the maize variety “Kartuli Krugi” and soil fertility under
irrigation conditions of Samgori Plain. /L. Sakhvadze, G.
Jamburia, A. Tkeshelashvili, L. Chachava, N.
Devdariani, T. Ghlonti/. Scientific Works of I. Lomouri Farming Institute of
Georgia. – 2009. – XXXXVI – pp. 82-84.
– geo., res.: rus., eng.
The effect
of the bacterial-organic-mineral fertilizer BOMS on the maize variety “Kartuli
Krugi” is discussed. The economic indicators concerning the advantages of the
BOMS against mineral fertilizers are given.
Auth.
6.C9.29. New germplasm
obtained by crossing a mutant form of the wheat variety “Lagodekhi
Long-stalked” with “Makha”. /P. Naskhidashvili, G. Ckhutiashvili, M.
Chokheli, G. Khutsishvili,
The hybrid
forms produced by crossing mutant forms of the variety “Lagodekhis Long-stalked”
with the old Georgian variety “Makha” represent valuable germplasm and are
kept in the institute’s gene bank. The
germplasm can be used in breeding new crop-intensive wheat varieties.
Auth.
6.C9.30. The results
of genetic and selection study of Georgian maize varieties. /O.
Liparteliani, G. Jamburia, A. Tavadze, F. Begoidze/. Scientific Works of I. Lomouri Farming Institute of
The work
deals with the results of a long-term genetic and selection study of 246
varieties and populations in all the wheat regions of
Auth.
6.C9.31. Breeding of
high-yielding hybrids of barley. /Z. Saralidze, L. Kirikashvili, N. Lominadze, N. Sokhashvili/. Scientific Works of I. Lomouri Farming Institute of
The correlation
of productivity elements in the barley hybrids obtained has a positive
character.
Auth.
6.C9.32. Study of new
early-season and mid-early-season maize hybrids. /M. Tusiashvili,
L.Kirikashvili, A. Mumladze, T. Kodua, T. Tavadze/. Scientific Works of I. Lomouri Farming Institute of
The article
presents the results of developing and testing of early-season and
mid-early-season high-yielding hybrids with positive economic properties. The experimental
hybrids have been developed based on new self-pollinated lines from the hybrids
introduced from
Auth.
6.C9.33. Early-ripening
forms of haricot bean chosen from collection nurseries. /T. Kodua,
L. Kirikashvili, Z. Saralidze,
Haricot
bean is widely spread in
Auth.
6.C9.34. The lentil
world collection study results. /P. Vacheishvili/. Scientific Works of I. Lomouri Farming Institute of
Georgia. – 2009. – XXXXVI – pp. 100-102.
– geo., res.: rus., eng.
The article
deals with lentil as a high-protein legume crop, its food and agrotechnical
significance. The work on the selection of lentil has been in progress at Mtskheta
breeding station of the Georgian Farming Institute since 1998 based on the
selection material received from the
Auth.
6.C9.35. Hybrid maize
seed breeding and improvement in
To obtain
high yield and quality seed per hectare, the following maize hybrids have been
developed: Ulevi, Kvirila, Modinakhe and Mtskheta-2004. As the maternal forms were
used the high-yielding single-cross hybrids Enguri - (B73XMo17),
Tserovani 1 - (B73XMo17-2426), Tserovani 2 - (B73-1161XMo17-2426).
The paternal forms were Abashuri Kviteli, Geguturi Kviteli and Kartuli Krugi.
All the four hybrids are high yielders, producing 8-10 ton/ha. It is possible
to receive 5-6 tons of F1 seeds per 1 hectare.
Auth.
6.C9.36. Seed
production of bulb onion “Pink
The sampling
technique and seed production of a new bulb onion variety “Pink-32” are
considered and its biological and economic traits are studied.
Auth.
6.C9.37. Virus-free potato
seed production and obtaining of stress resistant forms. /F.
Bakradze, A. Zubiashvili, R.
Gamkrelidze,
Microclonal
propagation of potato plants in vitro
has shown that stress conditions, when the day length reduces by 50% and light
intensity - by 33.4%, provoke accelerated transfer of clones to the formation
of micro-tubers without vegetation. In spite of the restricting factors, the resistant
forms managed to completely reconstruct plants and started forming micro-tubers
in test-tubes. This method enables to find the
stress-resistant forms in a short period of time.
Auth.
6.C9.38. Collection,
conservation, documentation and use of genetic resources of grain (dry) and
green common bean. /N. Kakabadze/. Scientific Works of I. Lomouri Farming Institute of
The common
bean species being cultivated in
Auth.
6.C9.39. Collection,
conservation, documentation and utilization of plant genetic resources. /A. Gulbani, M. Chokheli, T. Akhaladze, A. Devidze, T. Koshadze/. Scientific Works of
I. Lomouri Farming Institute of
Auth.
6.C9.40. Grain yield
and gluten content in wheat forms selected from international nurseries. /.G.
Chkhutiashvili, M. Barisashvili, B. Tsereteli/. Scientific Works of I. Lomouri Farming Institute of
The work
deals with the wheat accessions from international nurseries distinguished by the content of
gluten and grain yield.
Auth.
6.C9.41. Wet gluten
and yield indices of winter wheat. /M. Barisashvili, B.
Tsereteli/. Scientific Works of I. Lomouri Farming Institute of
The winter
wheat gluten and yield indices are given in the article. According to the study
data, the studied wheat varieties do not differ much by these indices.
Auth.
6.C9.42. Immunologic
study of new wheat endemic varieties. /N. Sulamanidze, G.
Chkutiashvili, M. Chokheli/. Scientific Works of
I. Lomouri Farming Institute of
The Georgian
endemic wheat varieties are noted for high immunity to the diseases widely
spread in the country. The immunity of endemic varieties is conditioned by their
content of disease-resistant genes, which enables their active inclusion into
the existing breeding programs.
Auth.
6.C9.43. Immunologic
study of eggplant selection material. /N. Sulamanidze, E.
Motiashvili, Z. Liparteliani, N. Modzgvrishvili, M. Girsiashvili/. Scientific Works of I. Lomouri Farming Institute of
During the
last (2007-2008) years, the following eggplant diseases have been widely
spread: Phomopsis blight, Alternaria blight, Werticillium wilt, etc. The
conducted immunologic studied have shown that the accessions 31 and 37 from the
eggplant collection nursery are resistant to the above-mentioned bacterial
diseases. The accessions GarX18 and OiX30 from the variety trial on a farm
scale are characterized by both high productivity and resistance to bacterial
diseases.
Auth.
6.C9.44. Potato scab causing
fungi. /B. Akhobadze, N. Zhvania,
The
research carried out in
Auth.
6.C9.45. Immunologic
study of new inbred maize lines. /N. Zhvania, L. Kirikashvili, K.
Niauri, T. Tavadze, M. Berishvili/. Scientific
Works of I. Lomouri Farming Institute of
The
immunologic study of new inbred maize lines conducted in 2007-2008 revealed prevalence
of such fungal diseases as helmintosporiosis and corn smut. The corn borer (Pyrausta nubilalis) is one of the
greatest potential insect enemies of the maize crop. As a result of the study, the
lines with high and medium resistance to the above diseases and pests and
susceptible genotypes have been revealed. The promising lines will be used in the
breeding of new high-yielding resistant hybrids.
Auth.
6.C9.46. Immunologic
evaluation of maize lines developed from the local variety “Abashuri Kviteli”. /N.
Zhvania, K. Niauri, T. Kodua, L. Kirikashvili,
Resistance
to the deceases and pests is one of the most important qualities of plants. The
immunologic evaluation carried out in 2007-2008 revealed some promising maize
lines with complex resistance to diseases and pests.
Auth.
6.C9.47. The main principles of assessing the
efficiency of agro-forestry systems. /M. Khutsishvili/.
Agrarian-economic Science and Technologies. – 2009. - #3. - pp. 106-109. – geo.; res.: eng.
Researches have
proved that for enhancement of yield capacity of agricultural crops and
stock–breeding products the main reserve is the stopping of wind erosion and
decrement of draught effects by means of agro-reclamation methods. A diversity
of natural–economic characteristics of
Auth.
6.C9.48. The changeability of teaflavines and
tearubigines in the production of Georgian black tea. /R.
Melkadze, R. Melkadze-Jurchadze,
The accumulation and
changeability character of black tea “pigments” – teaflavines and tearubigines
are studied during the fermentation process. The primary dependence of relative
teaflavines/tearubigines on the manufactured black tea semiproduct has been
established, making 1:(8,38-8,87) for the first-roll fraction 1:(7,90-8,04) for
the third-roll fraction. This can be recommended as a supplement to
organoleptic methods of black tea tasting.
Auth.
6.C9.49. The effect of planting sweet bay
planting stock on the permanent place on its growth and development under
conditions of Imeteri (
The bay laurel
cultivation is one of the oldest fields of Georgian agriculture. The planting
of bay planting stock is carried out according to several methods: rootball planting;
bare-root slush planting. All these processes affect the growth and development
and of bay laurel.
Auth.
6.C9.50. Rehabilitation of bay laurel
plantation under conditions of Imereti (
The article deals
with the rehabilitation of bay plantations that tend to be thin under conditions
of
Auth.
C10.
Water Industry. Melioration
6.C10.1. Socio-economic aspects of
land-reclamation systems (according to a
The article deals
with the socio-economic aspects in connection with the infrastructure
rehabilitation of land-reclamation systems in
Auth.
6.C10.2. Estimation of water supply to
consumers upon weater-pipe fault. /V. Nachkebia, E.
Gvaramadze/. Building. – 2010. - #1. - pp. 60-64. – geo.; res.: geo., rus., eng.
In case a water-pipe
fails, water supply to consumers can be secured through the arrangement of
switchovers between water-supply lines. The switchover effect will be different
depending on the water supply duty (under constant or live pressure). The
article informs how to estimate the given effect depending on necessary costs
and the number of switchovers upon the water-pipe fault.
Auth.
C11. Foreign
and Domestic Trade. Tourism
6.C11.1. Economic
and mathematical
model of the sustainable use of a landscape as of a tourist recreational resource. /B.
Barkalaia/.Transactions of Technical University of Georgia. - 2009. - #1(471). – pp. 101-103. – geo.; res.: geo., eng., rus.
The
economic and mathematical model of
the sustainable use of a landscape as of a tourist recreational
resource is considered, where the main emphasis is made on long-term use of
this resource under conditions of stable economic gain.
Auth.
6.C11.2. The role of climatic factors in tourism and agroecology.
/L.
Kartvelishvili, K. Rokva/. Science and Technologies. – 2009. - #7-9. –
pp.50-54. geo., res.: eng., rus.
Local climatic conditions should be taken into account
when planning a number of economic branches. Especially important is to study climatic
factors for the sectors susceptible to climate change, such, for example, as
tourism and ecology. The work considers the principal climatic factors, in
particular the air temperature and precipitation in the
Auth.
6.C11.3. Proposals on regulation of the export-import
regime and free trade between Georgia and EU. /G. Doghonadze/. Agrarian-economic Science and
Technologies. – 2009. - #3. - pp. 26-30.
– geo.; res.: eng.
The development of
Auth.
6.C11.4.
Tourism is the priority
branch of the national economy development. Based on the above, the following
tourist products can be offered: a package of adventure tours; cultural
tours, religious and pilgrimage tours; winter sport tours; hunting and fishing
tours. As to the sale of a tourist product, travel companies can do it
themselves or through tourist agencies or trade networks. To introduce a new
product on the market and to revive demand therefore, various motivation tools
are applied. These tools can be directed to the company personnel, trade
agents and clients. The motivation will condition increased sales and,
therefore, increased revenues of travel companies.
Auth.
6.C11.5. A perspective design of a recreational
complex "Dolphin" for population and tourists. /A.
Prangishvili, Z. Tsikhelashvili, T. Batsikadze, T.
Gvelesiani,
A perspective design
of a recreational complex "Dolphin" for population and tourists is
proposed. It is to be constructed on floating coast-protecting structures. The design
is recommended for application in the corresponding innovation projects both in
Georgia (
Auth.
C12. Transport and Machine-building
6.C12.1. Vibrational load of the truck driver’s
seat.
/M. Tkeshelasvili, G. Lekveishvili,
The main attention in the work is given to horizontal
vibrations acting on the driver’s seat. Also given are the transfer ratios from
the truck frame to the cabin and the spectral distribution of accelerations on the
driver’s seat. Over-the-road tests evidenced that the horizontal loads are less
dependent upon speed fluctuations (constituting approximately 3–5%) and make
60–80% of the vertical fluctuations. The rate of loads in the longitudinal
direction is 20–25% less for the experimental suspension compared with the
commercially made one, and the transfer ratio is improved by 18–23%. The vertical
load acting on the driver’s seat is especially disturbing in the 1,5–2,5 Hz frequency
span. The rate of spectral distribution in the longitudinal direction is 16–20%
less for the experimental embodiment as compared with the commercially made one
in the 1,5–2,5 Hz frequency span, and makes 26-50% in the 4-6 Hz frequency
span. In the high frequency span, the difference is insignificant.
Auth.
6.C12.2.
The pneumatic tyre-ground interaction test-bench. /T. Morchadze, D. Kbilashvili, G. Gogitidze/. Science
and Technologies. – 2009. - #7-9. – pp.63-69.
geo., res.: eng., rus.
The work presents a test-bench design for determining
the pneumatic tire-ground interaction and the bench testing methods. The
test-bench design enables investigation of the roadability parameters of the
oscillating and non-oscillating tires upon rolling in the dirty road track in
both the driving and driven modes. For this purpose, an inertia vibrator of
rotations is used in the wheel fixing device of the test-bench, which ensures
the wheel’s sinusoidal vibration of different frequency and amplitude during
its rolling on the ground surface. To assess the impact of vertical vibrations
of different frequency and amplitude on the coefficient of resistance to the
wheel rolling, the so-called relative characteristic is introduced. It
represents a ratio of rolling resistance coefficients being determined for the
cases of switched-on and switched-off vibrators under identical test conditions.
Auth.
6.C12.3.
Geostrategic factors of combined service development. /P.
Kenkadze, L. Lomsadze, Z. Goletiani, G. Gogmechadze, V. Beraia/. Science and Technologies. – 2009. - #7-9. – pp.67-69.
geo., res.: eng., rus.
The conditions of functioning of modern combined
services against traditional traffic are discussed. The significance of geostrategic
factors for combined service in transport networks of
Auth.
6.C12.4. Basic directions of Georgian railway development. /Z. Tevzadze,
The
current state of the Georgian railway network is analyzed and the necessity of
its further development is justified. The basic directions of the Georgian
Railway’s perspective development and the ways and methods of perfection of the
transportation process on the Georgian Railway are proposed.
Auth.
6.C12.5. Specifics of hydraulic calculation of hydraulic deposition tailing pond and dam distribution pipeline. /V.
Silagadze, M. Jangidze/. Science and Technologies. –
2009. - #7-9. – pp.86-90. geo., res.: eng., rus.
The
article concerns the issue of hydraulic calculation of hydraulic deposition
(distribution) pipeline; the necessity of considering specification of movement
in silting regime during determination of hydrodynamic parameters is proven; the
methodological sequence of hydraulic calculation (distribution) of hydraulic
deposition pipeline is presented.
Auth.
6.C12.6. Modern ways of improvement of
high-speed diesel engines /V. Gvetadze, G.
Purtshvanidze, A. Lomidze, L. Gogisvanidze/. Novation. – 2009. – #5
– pp. 224-227. – geo., res.: geo., rus., eng.
The
combustion process intensification in diesel engines with the chamber in the
piston is connected first of all with the generation of an air charge
at the inlet. Another modern trend is increasing a share of volumetric fuel
mixing until full suppression of a film component. Comparative researches of
various ways of the mix preparation process with air charge regulation made it
possible to obtain full information on the possibilities of each combination of
the applied compression chambers and fueling equipment.
Auth.
6.C13.1.
Our experience of surgical treatment of the abdominal wall obturator hernia. /V.
Tedoradze, D. Menabde, A. Beridze, K. Kashibadze/. Georgian Scientific News. –
2009. - #4. – pp. 62-64. - rus.; res.: geo., eng., rus.
The
treatment results of 378 patients with the obturator abdominal wall hernia of
different localization are analyzed. Methods of alloplasty with the application
of synthetic polypropylene mesh with the rational selection of anesthesiology,
antibiotic therapy, adequate drainage, the degree of disease and the selection
of patient according to concomitant diseases are characterized by the minimal
number of postoperative complications. During operations with traditional
methods, relapses occurred in seven cases (2.3%) and were not recorded in
plasty with polypropylene mesh. Specific complications during plasty of local
tissues occurred in 21 cases (6.5%), during alloplasty - in 4 cases (4.9%).
Non-specific complications during autoplasty occurred in 9 cases (3.1%) cases, during
alloplasty - in 2 cases (2.7%). The fatal outcome during traditional treatment
was observed in 4 cases (1%) and was not recorded during alloplasty.
Auth.
6.C13.2. The
structural and functional organization of the somatosensory impulses’ travel
from the superior limbs to brain structures. /R. Sakandelidze, A.
Shalamberidze, T. Lomsianidze/. Georgian
Scientific News. – 2009. - #2. – pp. 21-23.
- rus.; res.: geo., eng., rus.,
The
work comes out with the suggestion about the functional importance of
contralateral and ipsilateral somatosensory afferent projections of the
superior limb and of the character of the participation of these projections in
the compensatory-restoratory reorganization of the central nervous system upon
injury of the musculocutaneous analyzer. The work results significantly
supplement theoretical conceptions of the structural and functional
organization of the somatosensory inpulses’ travel towards the central nervous
system in general, and from the superior limb to the brain structures, in
particular
Auth.
6.C13.3. Endotheliocytes of
placenta at primary hypothyreosis and its subclinical form. /N. Lomitashvili/.
The placental endothelium at primary hypothyreosis has
been studied by the method of light and electron microscopy, 10 cases in total.
It was revealed that endothelial cells were mostly broken. Their forms are
often changed, slots between cells, through which fibrocytes penetrate into
deeper layers of placenta, appear; the forms of erythrocytes are changed, forming
“sharp angles” in them; the structure of endotheliocytes changes, haemorrhage
nuclei grow, mitochondria are mostly broken, and the capillary endoplasmic
reticulum dominates.
Auth.
6.C13.4. Patient-centric web 2.0 technologies for health
care. /C. Andreescu, I.
Kopaliani/. Novation. –
2009. – #5 – pp. 40-51. – eng., res.:
geo., rus., eng.
The
health care industry in the
Auth.
6.C13.5. Computer vision syndrome: development
of a new medicinal-preventive product. /V. Khvedelidze/. Novation. –
2009. – #5 – pp. 74-80. – geo., res.:
geo., rus., eng.
On the basis of
tealeaf catechin complex and antocyanides of bilberry fruit, a natural
antioxidant complex – adaptogenic vegetable preparation has been developed. The
preparation, as a biologically active additive, is capable of improving
the functional state of visual organs, of complex prophylaxis of eye diseases
and twilight vision. Due to its antioxidant qualities, the preparation is highly
effective in treating asthenopia, especially during regular work with computers.
Auth.
6.C13.6. Peculiarities iron absorption and
transport in human body. /M. Tatvidze, V. Khvedelidze, B.
Butskhrikidze/. Novation. – 2009. – #5 –
pp. 96-100. – geo., res.: geo., rus., eng.
The article deals with the role of iron in the human body functioning, provides the information about the iron-containing animal and plant products,
describes the
peculiarities of iron absorpation and transport, considers the role of iron activators
and inhibitors in iron absorption efficiency.
Auth.
6.C13.7. Investigation of the possibility of
using untwisted yarn as retraction thread. /T. Moseshvili,
The retraction thread/cord is widely used in dentistry for rapid and
effective retraction of gums. The available knitting and woven threads may be
impregnated with styptic mater. The untwisted yarn is formed at pasting of
separate fibers as a result of interaction of binding substance with fibers.The structure of the untwisted yarn enable to apply them as the
retraction thread. As researches have shown, fibers on all length are
extended in parallel of the yarn axis to be located close to the product axis. Investigation of water adsorption and capillarity of untwisted yarn has
shown that epinephrine absorption speed in the untwisted yarn is higher by 40%
than in standard Gingi-Pak retraction threads.
Auth.
6.C13.8. The role of fluorine
in the development and prevention of caries in childhood.
/I. Kldiashvili, T. Kutateladze, O. Asatiani/. Novation.
– 2009. – #5 – pp. 144-147. – geo., res.: geo., rus., eng.
The factor for the
development of caries is a scarcity of fluoride ions. The human organism
obtains them through the drinking water. The standard is within 0,8-1,2
mg/l. The amount of fluoride ions in the drinking water in
Auth.
6.C13.9.
The
influence of some pesticides on human body.
/N. Khazaradze, L. Gobejishvili,
A new generation
of pesticides enables their safe use. However, some pesticide residua may
affect the human health. Their existence in the organism is greatly dependent
on the metabolic processes taking place in the environment. Most substances
that create hydrophilic particles during metabolism are incapable of
accumulation in the in human organism.
Auth.
6.C13.10.
Dual inhibition of cholesterol synthesis and absorption by statins and
ezetimibe: a new approach to dyslipidemia treatment. /N.
Kipshidze, K. Nadaraia/. Bulletin of
the
In
clinical practice, clinicians may not increase statin dose levels out of
concern for potential adverse events or because titration of statin doses
provides only limited additional effectiveness. Ezetimibe, a novel agent
inhibiting cholesterol absorption, can be effectively and safely
co-administered with any dose of any statin and, compared with the single
inhibition of cholesterol production, afforded by statins alone, provides
consistently greater reductions in LDL-C through dual inhibition of both
cholesterol production and absorption. The aim of our study was to evaluate the
additional effectiveness and safety of Ezetimibe in high risk patients with
documented coronary heart disease who were not at goal with starting doses of a
statin. The including criteria of 127 patients, enrolled in the study were the
presence of established CHD plus type 2 diabetes of at least 3 months duration
and/or other major risk factors, LDL-C > 100 mg/dl and < 250 mg/dl, high
triglycerides (TG) ≥200 mg/dl and <400 mg/dl. Patients had to have
been receiving therapy with a stable dose of baseline statin, either
simvastatin 20 mg or atorvastatin 10 mg, for at least 4 weeks. At
randomization, patients were assigned to switch to ezetimibe/atorvastatin
10mg/10mg (Gr. 1) or to continue baseline statin at double the dose:
simvastatin 40mg or atorvastatin 20 mg (Gr. 2). After 12 week follow up
analysis of the study showed that 72.6% of patients (45 from 62) in Gr. 1
achieved LDL-C < 100 mg/dl vs 27.7% of patients (18 from 65) in Gr. 2 (P<0.001).
29.0% of patients (18 from 62) from Gr. 1 reached More lower LDL-C goal of
below 70 mg/dl vs 4.6% (3 from 65) of patients in Gr. 2 (P<0.01). Patients from Gr. 1 experienced an additional mean
LDL-C reduction of 29.2% after 12 weeks vs 12.3% in Gr. 2 (P<0.001). No statistically significant differences were observed
between the 2 treatment groups with respect to musculoskeletal or overall
adverse experiences. Conclusions. According to our study we conclude that for
high risk patients with CHD who did not achieve LDL-C goal on their starting
dose of statin therapy, ezetimibe/atorvastatin combination provided superior
lipid-lowering efficacy vs doubling the dose of the baseline statin after 12
weeks of study. Therapy with ezetimibe/atorvastatin was generally well
tolerated. Dual inhibition of hepatic cholesterol synthesis and intestinal
cholesterol absorption may be a new and practical approach to today’s treatment
for dyslipidemia.
Auth.
6.C13.11. Georgian-English-Russian-Latin
explanatory dictionary of medical terminology. /G. Gogichadze, A. Gedenidze, J. Chumburidze/. –
2009. – pp.495. – geo.
The dictionary
reflects both the vocabulary of medical thought as well as the diversity of the
contemporary scientific or practical subjects. Together with the medical
issues, the dictionary describes the definitions and terms of molecular
biology, genetics, medical parasitology, and main diseases of the bacterial,
viral and other etiology. It explains up to 5,400 widespread notions, word
combinations and terms, their etymology, providing, in some cases, their
synonyms. In addition, the dictionary pays a special attention to biological
peculiarities of some infectious agents.
Auth.
6.C13.12. Application
of natural zeolites for medicinal purposes. /T. Andronikashvili,
K. Paghava, T. Kurashvili, L. Eprikashvili/. Bulletin of the
This
paper discusses the effects of natural zeolites (particularly
clinoptilolite-containing tuffs from various deposits) on the living organism,
both animal and human. It is shown that natural zeolites are harmless, possess
the metabolism-normalizing, bactericidal, immunostimulatory and antioxidative properties.
They diminish mortality and morbidity with regard to many diseases and
disorders affecting cattle, sheep and goats, swine and poultry. Hence, it is
rational to utilize zeolites in animal husbandry. They are used successfully in
the treatment of different human diseases. The zeolite efficacy in gastroenterology
merits particular attention. It is established that zeolites can be used both
in human and veterinary medicine as biologically active food additives (dietic
additives), drugs, drug carriers, adjuvants in anticancer therapy and
antimicrobial agents as well. The data fully substantiate the expediency of
further research in terms of studying natural zeolites and their biological and
medicinal effects.
Auth.
6.C13.13. The
cell protective manifestations in the organism interrelated with the nervous and immune systems /N. Khvitia,
E. Khvedelidze, Z. Topuria, S. Zurabashvili, B. Kochlamazashvili/. Bulletin of
the
Heterogeneous
interest of blood corpuscles taking place in protective manifestations points
to the existence of the immune centre in the cortex, the function of which is
broken at the moment. The clinical material demonstrates that the protection of
the immune system during oncological diseases takes place improperly, which
conditions the patient’s state deterioration. Concurrently, the authors state
that in any case cells can be found where the proper direction is seen.
However, the number of such cells is insignificant. Hence, it may be concluded that the linkage
of the immune and nervous systems is broken.
Auth.
6.C13.14.
Aging and salt sensitivity. /G. Simonia,
Salt
sensitivity was assessed in normotensive 48 young and 62 elderly males. Salt
sensitivity was assessed by the difference of mean arterial pressure (MAP) on
high (200 µmol Na/day) vs. low (40 µmol Na/day) sodium diet. Plasma rennin activity
(PRA) was assessed during both diets. High salt diet led to significant
increase in systolic blood pressure and MAP only in salt-sensitive subjects
with peak levels in the elderly. Only salt-resistant subjects responded
adequately during high salt diet by decrease in PRA which was significantly
lower compared to basal levels. In salt-sensitive groups, especially in the
elderly, PRA decreased to a lesser extent. Final clarification of mechanisms of
salt-sensitivity in normotensive elderly calls for further investigations.
Auth.
D1.
Organization and Management
6.D1.1. Obligations,
responsibilities, risk and received profit of cooperative members. /T.
Dudauri/. Science And Technologies. – 2009. - #7-9. – pp.122-126. geo., res.:
eng., rus.
Based on an analysis of the experience of cooperatives
of the developed countries in the world, the
article discusses advantages and profitability of agricultural cooperatives. On
the basis of individual examples, the co-op members’ obligations and
responsibilities are established; the risk to be allocated among the co-op
members in the course of their economic activity is analyzed; the technique of
product purchase pricing in the process of calculation of the co-op members’
revenue is given by specific examples; a method of selection of the desirable
option is analyzed and its advantages are substantiated.
Auth.
6.D1.2. Risk management mechanism in farms. /O.
Keshelashvili/. Agrarian-economic Science and
Technologies. – 2010. - #1. - pp. 6-11.
– geo.; res.: eng.
A completely new mechanism
(system) for agricultural risk appreciation and management has been worked out
for the first time. It is based on specific risk factors and puts in order the
entire risk setting, criteria selection, assessment and management process. The
selected indicators help prove the reasonability of risking in the taking of
any economic- organizational or technological measure, in the realization or any
direction or activity in order to ensure a better economic effect.
Auth.
6.D1.3. Agrarian production optimization
problem. /O.
Keshelashvili, M. Nikoleishvili/. Agrarian-economic
Science and Technologies. – 2010. #1. – pp. 92-95. - geo.; res.: geo., eng.
The science-based
handling of the set problem should contribute to the development of Georgian
agriculture, specialization of agroproduction, effective use of the economic
and technological environment and proper determination of scopes of farming
activities, agricultural inputs and revenues. This is the current and future
strategic task to be coped by the state. Given that a model ensuring the
optimization and sustainable development of agricultural production based on
the conservation of the industrial-resource potential and its implementation
mechanism in the form of economic-organizational recommendations has not been
worked out in Georgia, it is evident that studies in the matter are rather
urgent and of great practical significance.
Auth.
6.D1.4.
Organizational culture and its role in strategic management of an organization.
/S.
Zhorzholiani/. Georgian Scientific News. – 2009. - #1. – pp. 66-70. - rus.; res.: geo., eng., rus.
The
article analyzes the role of organizational culture in the strategic management
of an organization is considered. Definitions of corporate and organizational
culture are given; an analysis of the organizational culture of enterprises
from the former USSR up to now is done; a number of major functions implementable
in respect of the organization of culture is determined, as well as components of
the organizational culture.. The article considers the major elements of the
modern conception of management, shows that the development of the strategic objectives
of a company is necessary in order to be competitive and provides ways of their
fulfillment.
Auth.
6.D1.5 Entrepreneurial
(economic) risk evaluation and
management in farms. /O. Keshelashvili, J. Bazhunaishvili/. Agrarian-economic Science and Technologies. –
2009. - #4. - pp. 20-41. – geo.; res.:
eng.
The entrepreneurial risk
management should be carried out on a stage-by-stage basis. The following stages are of importance: risk
analysis, risk control, risk management, and risk financing; The entire
spectrum of risk (individual and social) importance is divided, according to
the so-called “traffic light” principle, into three areas: the unacceptable risk area – “red” area; the acceptable risk area – “yellow”
area; and the ignorable risk area – “green” area. Based on the conducted
research and generalization of the data on farms, it may be concluded that the
risk management mechanism in Georgian farms should be of a clear-cut hierarchic
character in order to reduce the negative risk impact and where necessary to
adjust it as a result of the implementation of the set activities.
Auth.
6.D1.6. Proposals on the
economic-organizational perfection of agro-tech service /T.
Tavidashvili/. Agrarian-economic Science and Technologies. – 2009. - #4. - pp. 42-46. – geo.; res.: eng.
Auth.
6.D1.7. Game theory; decision-making and
economic behavior. /O. Keshelashvili/. Agrarian-economic
Science and Technologies. – 2009. - #3. -
pp. 6-12. – geo.; res.: eng.
One of the main tasks
of the game theory is the determination of conflict situations and the type and
degree of a conflict for the purpose of its further regulation and control. Based
on this theory, one can investigate the decision-making process under
conditions of interaction of the interests of the conflicting parties. The game
theory is the most complex and promising applied science for studying the decision-making
process and analyzing the economic behavior. The game theory has brought to the
forefront new approaches, implying that the decision-making is directly
connected the risk taking and management. It should be clearly stated that any
decision should be made only on the basis of determination of the risk
(economic risk) reasonability and profitability levels. Otherwise the
decision-making will be unjustified and unprofitable.
Auth.
6.D1.8. Risk management as a prerequisite of
the sustainable development of the agrarian sector and its strategic programs. /O.
Keshelashvili, J. Bazhunaishvili, E .Dzagania, M.Mechurchlishvili/.
Agrarian-economic Science and Technologies. – 2009. - #3. - pp. 13-19. – geo.; res.: eng.
In managing risk in
the agrarian sector, the subject can apply different tools. Depending on the
application purposes and conditions, the following the three main groups of such
tools can be distinguished: managerial decisions; private sector service/instruments;
and state programs. These instruments can be used separately as well as in
combination. To reduce risks in the management of agricultural enterprises, it
is necessary that a correct, managerial decision is taken on the basis of the
following factors: cost-benefit analysis, risk assessment, production marketing
strategies (specialization, diversification, integration, stock management, making
production and marketing contracts, development of the infrastructure, product
quality/safety management, observing legal norms, etc.) It is underlined that
the main instrument in the risk management and distribution is the ensuring by
the state of an adequate degree of competition in any link of the “production,
processing, distribution and consumption” chain.
Auth.
6.D1.9. Simulation of the optimal and sustainable
development of agriculture to ensure food safety/.O. Keshelashvili,
M. Nikoleishvili/.Agrarian-economic Science and Technologies. – 2009. - #3.
- pp. 20-25. – geo.; res.: eng.
The optimal and
sustainable management of agriculture development processes requires that the
agricultural production, the functionally associated with it food processing
industry, the market demands, and export-imports issues be considered in the
aggregate. The problem may be set as follows: the optimal reconstruction of the
national agricultural production, coordination and specialization of its
branches with account for the outlet markets and export-import volume, the
population’s demands for safe farm produce and securing maximum revenues. The economic-mathematical
model includes the criterion function and restrictions. The restrictions
reflect the current economic conditions and possibilities in agriculture, while
the maximum, profit, maximum output, maximum commodities, minimum expenses,
etc. can be taken as the criterion.
Auth.
6.D1.10.
Social responsibility and target marketing. /Kh. Todua/.
Novation. – 2009. – #5 – pp. 232-235. –
geo., res.: geo., rus., eng.
Target marketing helps
companies in more efficient running of business and better satisfaction of
their customers’ demands for products they prefer. However, there are cases when
potentially harmful products enter the undefended market segment.
Auth.
6.D1.11. Organization of marketing activity of
a hauler on the transport service market. /T. Kochadze,
A market is a polysemantic
concept comprising in addition to its economic content also the political,
social and ethical issues. In other words, market is a method of society’s
economic interrelations, whose main components include the individual’s rights,
obligations and freedoms. The transport service market consists of three main
elements: free production, free demand, and free service price-forming on the
transport market. Disregard of any of these elements will mean the absence of a
real transport market. It should be mentioned that the principal driving force
of a civilized transport service market is competition among haulers (transport
service companies) that prevails in two forms: price competition; and new
technology competition. In order to be competitive, transport service companies
should have a well-organized marketing service.
Auth.
D2.
Environmental Protection. Ecology
6.D2.1.
Increasing ecological compatibility of motor vehcles by the use of waste oils
as the new oils base. /J. Iosebidze, G. Abramishvili, T. Apakidze,
L. Zurabishvili, A. Chkheidze/. Transactions of
The
so-called waste oils of M-8B1 and M-8Ã2Ê brand are used as a base for new
automotive transmission oils, the utilization of which in
Auth.
6.D2.2. The
effect of knock characteristics of gasoline on ecological compatibility of an
automobile. /J. Iosebidze, G. Abramishvili, T. Apakidze, L.
Zurabishvili, A. Chkheidze/. Transactions of
The
effect of the factors acting on the knock properties of gasoline (octane
number, carbon monoxide formation, aromatic hydrocarbons, soluble gums, sulfur
content, breakdown time, etc.) on the toxicity of waste gases of an automobile
engine is analyzed; a conceptual dependence between these indicators and
ecological safety of automobiles is established; it is proved that out of the
indicators determining the anti-knock properties of gasoline, the octane number
and the content of soluble gums and aromatic hydrocarbons significantly affect
the ecological compatibility of automobiles.
Auth.
6.D2.3. Environmental protection problems
in agriculture. /B. Rukhadze,
The strategic objectives of the state for
securing a safe environment for human health are considered in the article. The
role of scientific research in the successful implementation of the national
environmental protection program is outlined.
Auth.
6.D2.4.
Changes in the ecosystem and food products as a result of application of increased
rates of nitrate nitrogen. /I. Lomsianidze, V. Vashakmadze/. Georgian
Scientific News. – 2009. - #2. – pp. 53-55. - eng.; res.: geo., eng., rus.
Regular
and careless application of excessive rates of ammonium nitrate as a fertilizer
can misbalance nutrient substances and their circulation in the nature,
increase the content of nitrates in food products which, in turn, will lead to
the deterioration of health and many complications. The work analyzes the effect
of growing rates of ammonium nitrate on the content of nitrates in corn growing
on Ajameti podzol soils, during the three phases of its ripeness - milky, wax
and complete ripeness. In
Auth.
6.D2.5.
Investigation of ozone concentration variability under different weather
conditions in the clean surface air as exemplified by
A
study of surface ozone concentration variations under various weather
conditions was conducted in Ruispiri village. It has been established that if
the weather forecast is known, the SOC value during the daytime for Ruispiri
and its adjoining territory can be predicted, which is of great practical
significance for human health and agriculture, given that an excessive concentration
or lack of ozone in the air is detrimental to the biosphere.
Auth.
6.D2.6. On the creation of a uniform system
of estimation-forecasting and monitoring of the degree of pollution of
territorial river waters of the Black Sea basin countries and the working out of
ecological and prevention activities. /A. Prangishvili,
Z. Tsikhelashvili, T. Gvelesiani/.
Building. – 2010. - #1. - pp.
22-25. – geo.; res.: geo., rus., eng.
The possibility of designing
a uniform information system of estimation-forecasting and monitoring-control
of the degree of pollution of river waters as well as the working out of
necessary ecological and preventive activities to be applied (in case the
problem is stated) for the above purposes in the countries of the Black Sea
basin (Bulgaria, Georgia, Romania, Turkey, and Ukraine) is considered.
Auth.
D4. Other
Intersectoral Problems
6.D4.1. The age factor and comfort footwear.
/M
Grdzelidze, L. Chubinidze, M Shalamberidze.
À. Katamadze/. Khandzta. – #2(7). – pp. 168-172. – geo.; res.:
eng., rus.
The availability of comfort footwear for people of any age
is rather problematic. However, in terms of the age factor, the problem of
comfort footwear is approached differently. For teenagers, whose musculoskeletal
system has not been yet formed, orthopedic footwear can give good results in
the prevention of undesirable complications. Therefore, parents should timely
consult podiatrists in order to select for their children the most suitable and
comfortable footwear.
Auth.
6.D4.2.
Study of possible interaction of a softener, bio-polymer and fabric in manufacturing
medical bandages and napkins. /E. Buadze,
The
work attempts to study possible interaction of components of a medicinal
bio-composition, in particular fabric, bio-polymer, and softener. All the
bio-composition components are found to be practically inert.
Auth.