SUMMARY
INTEGRATING
METER OF SMALL CURRENTS
Babayan R.R. and Morozov V.P.
V. Trapeznikov Institute of Control Problems, RAN, Moscow
It is suggested that the microcircuit
integrator be used for measurement of small currents flowing onto test
semiconductor structures under the effect of the bipolar signal.This
will reduce the working hours of recording the weak-signal nonlinearities as
compared to recording the characteristics `by points~.
In
this case, the synchronization of the frequency of repetition of integration
steps with the network frequency will weaken significantly the effect of thr network interference on the test results.
Keywords: small currents,
nonlinear semiconductor structures, analog integration.
ON THE THEORY OF
DIFFRACTION OF THE PLANE ELECTROMAGNETIC WAVE
BY A THIN METALLIC
DISC
Asanidze A.B., Doborjginidze
D.D., Kevanishvili G.Sh., Sikmashvili
Z.I. and Chikhladze G.G.
Georgian Technical
University
Abstract. The paper deals
with the problem of diffraction of plane electromagnetic waves by a perfectly
conducting thin metal disc. Unlike previous classical works, the so-called "sharp
edge condition" ensuring the uniqueness of solutions of boundary problems
and satisfying the law of energy conservation is taken into account. The
radiation patterns of the disc (regarded as a transmitter) are presented.
Keywords:
diffraction,
disc, sharp edge condition, radiation pattern.
SOME PROPERIES OF THE
STRONG MEANS IN THE C AND L SPACES
Skhirtladze I.A. and Skhirtladze
N.I.
V. Chavchanidze Institute of Cybernetics of the Georgian
Technical University
Abstract.
Some
properties of the strong means of the Fourier series are defined.
Keywords: strong means,
strong summability, convergence, Fourier series.
Bosikashvili Z.V. and Archvadze G.V.
Georgian Technical
University
Abstract.
In
this paper the multiagent system, argumentation
framework and pattern recognition are briefly described. There are shown
different approaches to pattern recognition and different types of multiagent systems. When the agents communicate, they do
not necessarily use the same vocabulary or ontology. To interact successfully,
they must find correspondences between the terms used in their ontologies. We
are trying to explain what the pattern recognition is and how the agents can
interact successfully.
Keywords: argumentation framework, pattern recognition, multiagent system.
INCORRECT FIXATION OF THE STATE DURING PERCEPTION
Kadagishvili L.G.
V.V. Chavchanidze Institute of Cybernetics,
Georgian Technical University
Engineering Academy of Georgia
Abstract.
In
the study of the hierarchical structures of perception, the process of
cognition from the spots of perception to the assignment of the concept was an
important object of the study, during which the parameters typical for the
psychics were revealed. The cases of daltonism were
of importance. Daltonism is a deficiency of vision.
The daltonian finds it difficult to differentiate
between the colors, particularly between green and red (and their tones). This
is partially the color blindness having a great impact on the objectivity of
reasoning.
Keywords:
perception,
fixation of the state, image recognition, daltonism.
ENERGY CONSUMPTION IN
BUILDINGS AND FOR STREET LIGHTING IN TBILISI
Arabidze G.O. and Pkhaladze I.E.
Georgian Technical University
Abstract. The paper deals with the actions that are related to energy
saving in the sector of buildings.
Buildings in Tbilisi consume about 40% of all energy. The residential sector of Tbilisi accounts for 37 million
square meters and is represented by three subsectors: primarily
multi-flat buildings (60-65%) that were built during the Soviet era, individual
housing (constituting about 20-25%), and mixed-type flats (10-20%). The
improvements in the thermal insulation of the building envelope can reduce the
energy consumption of the heating system by 40-50%. The thermal
performance structure of existing buildings can be enhanced through
refurbishment, the use of efficient technologies, and changes in consumer behavior that will have contributed to the reduction in
emissions by 20% by 2020. All measures
are reflected in the framework of SEAP, namely:
the creation of the favorable environment,
provision of opportunities, setting up of the examples, generation of the
citizens’ support, direct engagement of the citizens in the actions, generation
of the support
and engagement of various parties in SEAP activities. The detailed analysis of
the number of street lighting points and their energy consumption is presented
in the paper. It is ascertained that, according to the reference scenario, the
energy consumption of the public lighting sector in the future will increase
and reach 52.78 thousand megawatt-hours in 2020. As for CO2 eq.
emissions, they will reach 21.11 thousand tones per
year. The trends of emissions from the Tbilisi public lighting sector according
to the BAU scenario for the period 2010-2020 is also presented.
Keywords:
urban energy consumption,
street lighting.
SUMMARY
CLASSIFICATION
OF TRANSPORT LOGISTIC CENTERS AND THE METHOD OF ESTABLISHMENT OF THEIR OPTIMAL
LOCATION
Kervalishvili G.P., Gasitashvili
Z.A., Khutsishvili S.A., Mchedlishvili
N.F. and Khartishvili M.P.
Georgian
Technical University
The paper deals with the basic activities of
the Transport Logistic Center (TLC) and focuses on modern forms of
organization, classification models and tasks to be solved. A multicriterial
expert method of establishment of the location of TLC, estimation index
system and a result - analyzing algorithm are proposed.
Keywords: transport logistic
center, logistics, transportability, storage thrift, service, expert system,
index system.
SUMMARY
DETERMINATION
OF CURRENTS WITH ASYMMETRY IN LONGITUDINAL PHASE PARAMETERS
Turkia N.G. and Pipia T.R.
Georgian
Technical University
When designing the power system, it is
assumed that the parameters of all its units are symmetric or maximum close to
that. To attain these ends, certain measures must be taken. For instance, it is
necessary to calculate the necessity in or at least the number of transpositions
in power lines. Despite the abovementioned, the phase parameters could be
asymmetric. In case of asymmetry of phases, it is impossible to calculate the
parameters of the mode by a conventional method, i.e. by using an equivalent
circuit set up for one phase, because in this case all three phases are under
different conditions. Hence the equivalent circuit set up for one phase does
not represent the parameters of the mode of all phases. The method suggested in
this work allows resolving the above-described problems.
Keywords: power system,
phase parameters, asymmetry.
SUMMARY
ASSESSMENT
OF THE CONDITION OF THE MAIN PIPELINE BEING IN SERVICE FOR A LONG TIME
Mrevlishvili T.G. and Lomidze I.B.
Georgian
Technical University
The paper deals with the methods of
diagnostics of the condition of pipelines being in service for a long time with
the specific conditions of operation of pipelines in mind. The types of defects
of pipelines and the problems caused are considered. The principles of the
technological process of diagnostics of the pipeline are explained, and the
need for such diagnostics is justified.
Keywords: main pipeline,
diagnostics, assessment.
SUMMARY
ISSUES OF THE RELIABILITY AND
EFFICIENCY OF MAIN GAS PIPELINES BY USING THE CLUSTER METHOD IN THE PHASE SPACE
Namgaladze D.P. and Pirveli I.Z.
Georgian Technical University
The paper deals with the reliability and efficiency of the main
gas pipelines
by using the cluster method in the phase space. Statistical processing of individual
clusters was
developed and the approximation
functions of the
probability distribution density were determined. Finally, the probability density function describing the stochastic process of failures and recoveries of the main gas pipeline was obtained. With this function, it is possible to determine all statistical
moments of the process.The obtained characteristics
enable the process
management and direct intervention in the process, which obviously will enhance the reliability and efficiency of the
main gas pipelines.
Keywords: main gas
pipeline, reliability,
efficiency, cluster method, phase space.
SUMMARY
SYATEMS ASPECTS OF THE DESIGN OF
LABORATORY EXPERIMENTAL TESTING OF THE COMPLEX OF CHAIN MODELS OF FLOATING
WAVE-SOFTENING HYDROTECHNICAL STRUCTURES
Tsikhelashvili Z.I., Gvelesiani T.L., Mchedlidze M.G. and
Margalitadze I.N.
Georgian Engineering Academy
The paper
deals with the systems aspects of designing the laboratory experimental testing
of the complex of chain models of floating wave-softening hydrotehnical
structures by using a wave-generator. To attain these ends, it is offered to
use descriptive models, which enables the specialists designing the experiment to
use actively the psycho-physical logical “implicit judgements”
of experts reflecting the multiplicity of designed-real states in the process
of testing the chain models at the dimensionless qualitative-criterial scale according to the following rankings: “bad
condition”, “medium condition”, “good condition”.
Keywords:
floating wave-softening hydrotechnical structures,
chain models, wave-generator, laboratory experimental testing, design, assessment.
SUMMARY
PHOTOSENSITIVE HYBRID COMPOUNDS
Maisuradze
J.P., Devadze L.V., Akhobadze
Sh.A., Zurabishvili Ts.I. and Sepashvili
N.O.
V. Chavchanidze Institute of Cybernetics of the Georgian Technical University
A novel hybrid bifunctional photochromic compound (SPAZ) was synthesized from spiropyran
(SP) and azobenzene
(AZ) by coupling reaction and investigated. Photoconvertion
of the hybrid compound incorporated in a polymer matrix took place at room
temperature. Spectral data indicated complete intramolecular
conjugation.
Keywords: photochromism,
spiropyran, azobenzene, hybrid molecule.
SUMMARY
URBAN
BUILDING DOCUMENTATION AS A GUARANTEE OF HERITAGE PROTECTION
Kuridze Sh.F.
Georgian
Technical University
The protection and preservation of cultural
heritage goes for beyond the national interests, the problem has become of a world
dimension. Every country having signed the International Convention or Charter
is responsible for implementation of these legal acts. According to these
International Documents, relevant amendmends and
alternations are to be made in national legislation. The heritage system is to
be reformed. Thus, the formation of the global legal space in the field of
cultural and natural heritage
began a long time ago. In order to comply with the principles of
the European Union, all laws and other legal documents adopted by the Georgian
Parliament since September 1, 1998, must conform to EU Standards and Norms. The
countries having signed the Architectural Heritage Convention are responsible
to adopt the integrated conservation policy according to which the preservation
of architectural heritage in urban planning is an important task. Thus, urban
planning must guarantee the preservation of cultural heritage.
Keywords:
urban
building, cultural heritage, preservation, International Convention.
SUMMARY
INVESTIGATION
OF THE PROCESS OF EXTRACTION IN THE LIQUID-LIQUID SYSTEM
Berdzenishvili I.G. and Kamkamidze K.N.
Georgian
Technical University
The experimental data on the
distribution of iodine between two liquid phases are presented. It is shown
that, the more the distribution coefficient differs from 1 in favor of the
solvent added, the more efficient is the extraction. The calculation of the
extraction process in
the liquid-liquid system is described.
Keywords: distribution
law, extraction, liquid, solvent.
SUMMARY
ELECTROPHILIC ADDITION OF METHYLENECYCLOBUTANE AND
1-METHYLENECYCLOBUTENE TO ALCOHOLS USING H2SO4 AS A CATALYST
Eremeishvili
M.G.
Akaki Tsereteli State University, Kutaisi
The electrophilic addition
of methylenecyclobutane and 1-methylenecyclobutene
using H2SO4 as a catalyst produces an ethers. The reaction of 1-methylcyclobutane with alcohols yieids 1-methyl 1-methoxy cyclobutane.
Keywords: electrophilic
addition, alcohol, catalyst, ether.
SUMMARY
SYNTHESIS
AND BIOLOGICAL ACTIVITY OF THE DERIVATIVES OF 2-DEOXYSUGARS
Gakhokidze
R.A., Sidamonidze N.N., Vardiashvili
R.O., Lomtatidze Z.Sh.
and Koiava
N.A.
Iv.
Javakhishvili Tbilisi State University
Tbilisi
State Medical University
By molecular rearrangement of the derivatives
of aldoses (xylose, arabinose and glucose), 1,4-lacton
and calcium salts of 2-deoxy-D-xylonic acid, 2-deoxy-L-ribonic acid and 2-deoxy-D-gluconic
acid were synthesized. Biological activity of synthesized products was tested.
Keywords: molecular
rearrangement, derivatives of deoxysugars, calcium
salts of 2-deoxy-D-aldonic acids, biological activity.
Keywords: citrates,
chelates, biocoordination compounds, fodder, chicken,
broiler.
SUMMARY
WINE AGING ON LEE
Datukishvili G.A., Chanturia
I.G., Khomasuridze M.B. and Geliashvili
Z.E.
Georgian
Technical University
The experiment was arranged by combination of the mentods applied in Champagne technology and production of
white wine by batonnage. During designing of the
experiment, the good and negative points of both methods were considered. Lee
aging was carried out in bottles for 3, 6 and 9 months. After completion of malolactic
fermentation, wine was poured in bottles and different amounts of lee were added -1, 2,
and 3%. Based on the results obtained by laboratory analyses and sensory
evaluation, the optimal technological operations and
conditions of aging of the wine on lee in bottles were worked out. The experiment confirmed that, during aging
the wine on lee in bottles at 10-12 ◦C in accordance with the developed
technological processes, there is no risk of either formation of hydrogen
sulfide and merkaptan or the wine oxidation.
Keywords: wine technology,
aging on lee, Champagne technology, batonnage.
RED DESSERT WINE ENRICHED WITH
PHENOLIC COMPOUNDS
Kekelidze I.A., Ebelashvili
N.V. and Japaridze M.Sh.
Institute of Viticulture and Oenology, Agricultural
University of Georgia
Abstract.
Numerous scientific investigations confirm that, among phenolic
compounds of red wines, catechins, flavonols, phenolcarbonic acids
and resveratrol are characterized by high antioxidant activity and sharply reduce
the risk of numerous diseases. Nowadays an increasing demand for
red wines on the world market is conditioned by their antioxidant effect.
However, according to the antioxidant activity, those red wines are
distinguished which are characterized by high content of phenolic compounds.
Their concentration in wine depends on the location of vine growth, the grape
cultivar and techniques of fermentative maceration. We have developed
fermentative maceration technology for red dessert wine with the aim of its
enrichment with phenolic compounds (our “know-how”). The purpose of this
work is to investigate flavonoids and non-flavonoids of red dessert wines: control - prepared
by the existing technology and test - prepared by the technology we
elaborated – enriched with phenolic
compounds. For the preparation of the research objects, local grape Saperavi was used. The
objects of research were: 1. Test sample of red dessert wine prepared by our
technology; 2. Control sample prepared by the existing technology. By the HPLC
analysis we determined the amount of phenolic compounds using
the apparatus Infinity 1200, USA with UV-VIS detector.
The separation of components was performed on the chromatographic
column with reversed-phase sorbent Microsorb 100-S
C18. The detection was performed at the
wavelengths: 280 nm; 360 nm; 310 nm. The results of the study showed that, in comparison with the control the test dessert wine sample had higher phenolic
content: total quantity of catechins 2.9 times as
much; flavonols – 4.9 times as much; phenolic acids –
by 55.8 %; phenolic aldehydes by 14%.
Keywords: flavonoids,
non-flavonoids, red dessert wine.
SUMMARY
APPLICATION
OF PERSIMMON TO THE PRODUCTION OF HONEY WINE
Khositashvili M.L., Buishvili
G.T., Ardzenadze M.D. and Oshakmashvili
Ts.Z.
Jakob Gogebashvili State University, Telavi
Shota Rustaveli State University, Batumi
Georgian
Technical University
The paper deals with the application of persimmom juice to the production of alcoholic beverages.
Volatile substances and pectins transfer from the persimmon juice to the honey
mixture. Being oxidized, they give the beverage a mild velvety flavor.
Keywords: fruit juice,
persimmon, alcoholic beverage, honey wine, flavor
SUMMARY
APPLICATION
OF FRUIT JUICE TO THE PRODUCTION OF ALCOHOLIC BEVERAGES
Khositashvili M.L., Buishvili
G.T., Ardzenadze M.D. and Oshakmashvili
T.Z.
Jakob Gogebashvili State University, Telavi
Shota Rustaveli State University, Batumi
Georgian
Technical University
The paper deals with the application of fruit
juice to the production of alcoholic beverages. Plum (tkemali)
iuice is used in combination with the water solution
of honey. It enriches the beverage with natural sourness and desired chemical
composition.
Keywords: fruit juice,
alcoholic beverage chemical composition, flavor.
SUMMARY
PROPHYLACTIC
EFFICIENCY OF DIABETIC-PURPOSE CONFECTIONERY
Karchava M.S., Silagadze M.A. and Berulava I.O.
Akaki Tsereteli State University,
Kutaisi
The paper deals with the indexes determining the prophylactic efficiency
of diabetic-purpose products. The glycaemic indexes
of developed diabetic products and alcohol-free beverages were determined. The
results of their clinical testing are given. It is shown that the developed
diabetic products are characterized by a low glycaemic
index and their inclusion in the food ration of diabetics does not worsen their
glycaemic index. The level of the concentration of
the glycosylated hemoglobin in the blood reduces by 20-25%.
Keywords: diabetic-purpose products, prophylactics, efficiency, glycaemic index.
SUMMARY
NEW-GENERATION DIABETIC-PURPOSE PRODUCTS – RADICALLY NEW PRODUCTS ON THE GEORGIAN MARKET
Karchava M.S., Silagadze M.A. and Berulava I.O.
Akaki Tsereteli State University, Kutaisi
The
paper deals with the basic scientific aspects of the production of developed
diabetic products The efficiency of the use of natural albuminous,
fibrous, vitamin, antioxidant supplements rich in biologically active substances,
medicinal plants and Georgian mineral waters for their production with the
purpose of giving them additional therapeutic-preventive and health-improving
properties is justified. Due to this fact, the resultant products are considered as radically
new for the Georgian market.
Keywords: diabetic products, efficiency, natural raw materials.
SUMMARY
FLOUR
CONFECTIONERY PRODUCTS FROM GERMINATING WHEAT GRAIN
Khutsidze Ts.Z., Pruidze E.G. and Dzneladze E.S.
Akaki Tsereteli State University, Kutaisi
The objective of the work is the development
of flour confectionery of a functional purpose of new generation on the basis
of biochemical and technological research of the germinating wheat grain. The object
of research is the germinating grain and the flour produced from this wheat,
which was used in the form of functional additives. The best organoleptic
indicators characterized the product in which 15-20% of wheat flour was
replaced with the flour from the germinating grain.
Keywords:
flour
confectionery, wheat, germinating grain.
SUMMARY
KNITTED FABRIC STRUCTURE SELECTED FOR TREATMENT OF
DIABEETIC ULCERS
Pailodze N.O.
Akaki Tsereteli State University,
Kutaisi
The paper deals
with the selection of the dressing for treatment of diabrtic
ulcers. The requirements
imposed on such a dressing are considered. It is offered to use the knitted
cotton fabric with interlacement 2:2 as a dressing for treatment of diabetic
ulcers. The fabric can be used in combination with medicinal and antibacterial
substances. The advantages of the offered dressing stemming from its structure
and properties are demonstrated.
Keywords: diabetic ulcer, dressing, treatment, knitted
fabric.
SUMMARY
DEVELOPMENT OF AN EXPERIMENTAL MODEL OF THE DIABETIC WOUND
Buadze
E.P., Pailodze N.O. and Abuladze N.B.
Akaki
Tsereteli State University,
Kutaisi
The paper deals with the problem of treatment of the diabetic
wound and with the development of the
wound model. It was established that a chemiluminescent model (model CL), initiated by low-temperature oxidation of cumene at T = 370C, can serve as a model
reaction simulating a wound in terms of the radical process. It
is shown that the steady-state concentration of peroxide radicals is provided
by the standard initiator Azobisisobutyronitrile -
AIBN. It was found that the generation of radicals in the reaction
corresponded to the generation of radicals in the pathogenic "wound"
as a response to damage.
Keywords: textile materials, reaction model, pharmaceutical
substance, diabetic wound.