Summary
On the equivalency of measures for resolution of the equation with random disturbance
Sokhadze G.A.
Akaki Tsereteli State University, Kutaisi
For linear equations with unlimited operators and random disturbance, the conditions of equivalency of generated distributions were obtained, and the density of these measures was calculated.
Keywords: random element, linear equations, unlimited operator, equivalency of measures.
Summary
On a mathematical model of inflation
Bidjuk P.I., Gogoladze N.G. and Sokhadze G.A.
Kiev Technical University, Kiev, Ukraine
Akaki Tsereteli State University, Kutaisi, Georgia
A model of autoregression for the process of inflation in transitional economy is proposed. The developed model allows making predictions a few steps ahead.
Keywords: inflation, autoregression, model, prognosis.
Summary
On the problem of optimal control of the inflation process
Bidjuk P.I., Gogoladze N.G. and Sokhadze G.A.
Kiev Technical University, Kiev, Ukraine
Akaki Tsereteli State University, Kutaisi, Georgia
A model of the process of inflation in transitional economy is proposed. The proposed model is designed for making the optimal forecast of inflation and of the growth of money mass.
Keywords: inflation, model, autoregression, forecast.
Summary
Hilbert space of measures: WeAK AND strong divisibility of Gaussian statistic structures in this space
Aleksidze L.T. and Zerakidze Z.S.
Gori University
The Hilbert space of measures is considered as a direct sum of Hilbert subspaces. Necessary and sufficient conditions for the orthogonal homogeneous Gaussian statistic structure to be weakly divisible are given. The necessary and sufficient conditions for the Borelian homogeneous Gaussian statistic structure to be strongly divisible are also given.
Keywords: statistic structure, Hilbert space, orthogonal structure, Gaussian structure, divisibility.
Summary
The flow of conducting fluids in circular pipes with magnetoconducting walls in uniform transverse magnetic fields
Tsutskiridze V.N. and Jikidze L.A.
Georgian Technical University
The flow of conducting viscous fluids in circular pipes with magnetoconducting walls in uniform transverse magnetic fields was theoretically studied. The relationships among the Hartmann, the Poiseuille and the Reynolds numbers, the sensitivity and the conductivity of walls are considered.
Keywords: conducting fluid, circular pipe, magnetoconducting walls, uniform magnetic field.
Prognostication of a Phenomenon as a System
Kadagishvili L. G.
Institute of Cybernetics
Abstract. Phenomenon Z. Bedia, who can light a bulb of any capacity by touching, is examined. Each individual has a biofield, but, as a rule, its energy is sufficient only for satisfaction of needs of the own organism. The phenomenon has been investigated experimentally. The heuristic quest showed that, before the manifestation of this property, Z. Bedia experienced a tragedy. The crisis developed unconsciously. The biofield was disturbed, which resulted in energetic disturbance. According to the setting data, the process proceeding in the phenomenon is physical. The interaction between the Psychic and the Physical (physiological) might result in the ability of managing the inner energy. The dream played a special role in the case of the phenomenon. The individual became able to manage his inner energy, which resulted in lighting the bulb.
Keywords: phenomenon, examination, setting, biofield, inner energy, heuristic quest.
Prognostication of a Phenomenon as a System
Kadagishvili L. G.
Institute of Cybernetics
Abstract. Phenomenon Z. Bedia, who can light a bulb of any capacity by touching, is examined. Each individual has a biofield, but, as a rule, its energy is sufficient only for satisfaction of needs of the own organism. The phenomenon has been investigated experimentally. The heuristic quest showed that, before the manifestation of this property, Z. Bedia experienced a tragedy. The crisis developed unconsciously. The biofield was disturbed, which resulted in energetic disturbance. According to the setting data, the process proceeding in the phenomenon is physical. The interaction between the Psychic and the Physical (physiological) might result in the ability of managing the inner energy. The dream played a special role in the case of the phenomenon. The individual became able to manage his inner energy, which resulted in lighting the bulb.
Keywords: phenomenon, examination, setting, biofield, inner energy, heuristic quest.
SUMMARY
The kinetics of quenching of triplet exсiplexes with molecular oxygen
Kokrashvili T.A. and Dekanosidze Sh.V.
Georgian Technical University
Quenching of polar triplet exciplexes proceeds quite efficiently by means of acceleration of the transition from the triplet exciplex to the singlet one if the latter is located at a lower energy level. Othervise there are observed relatively low values of 
, as the energy transfer from the tripet exciplex onto 3O2 is a low-efficient process. The energy transfer from polar exciplexes onto aromatic hydrocarbons is low-efficinet too.
Keywords: triplet exciplexes, quenching, triplet state, singlet state
SUMMARY
ONE-DIMENSIONAL BIN PACKING CLASS: FAST ALGORITHMS TO FIND THE BOUNDS OF OBJECTIVE FUNCTIONS
Fedulov G.K.
Iv. Javakhishvili Tbilisi State University
We have studied a class of 14 combinatorial models that are semantically close to a known One-Dimensional Bin Packing task. All models have a large number of practical applications in different fields: one-dimensional stock cutting, placing of files on CDs, a schedule theory, placing of loads in containers and so on. A general description of the class consists in dividing the initial set of weights into a some number of disjoint subsets with the given properties, which are defined by using the model restrictions. Primary attention has been given to the estimation of quality of approximate solutions as a measure of closeness to the optimum solutions. With that purpose, we build the bounds of objective function, which the approximate solutions are compared with. To find the bounds, we use two blocks: a block to reduce the initial size of tasks and a block to build the estimation corridor of reasonable solutions. The first block removes the dominant groups of weights (the dominant pairs, triplets, quarters and so on) from the initial data. The second block estimates the existence of reasonable solutions for a given number of subsets. These blocks are closely interlinked. The results of the first block are used in the second block and vice versa. Our algorithms for finding the bounds can be used in practice for large-size tasks (the number of different weights may be 50,000 and more) as an alternative to other approaches when the time factor is important.
Keywords: bin packing, approximate solution, lower bound, upper bound, initial reduction, estimation corridor
Summary
On the stability of the rod made from idealized elastoplastic material
Mshvenieradze I.D., Partskhaladze G.G. and Chavleshvili G.N.
Shota Rustaveli State University, Batumi
Georgian Technical University, Tbilisi
The problem of finding the conditions of losing the stability by the rod made from idealized elastoplastic material is discussed. For deriving the basic relationships in terms of the parameters of deformed state of the center section, two hypotheses are used. One of them is the hypothesis of plane sections, and the other hypothesis consists in the approximation of the equation for the bent rod axis by a sinusoid. Each fiber of the section is assumed to have the s-e diagram in the form of Prandtl diagram. Based on these two hypotheses, the quantities of primary vector and primary moment are found. By setting the values of force and eccentricity, the critical parameter value is found, and the critical length of the rod is determined.
Keywords: elastoplastic material, rod, stability, deformation.
Summary
On homeostatic principles of robotics
Machavariani G.A. and Dekanozishvili G.G.
Institute of Cybernetics
It is demonstrated that walking robots designed according to the principles of collective behavior of automatic machines exhibit homeostatic properties.
Keywords: robotics, collective behavior, homeostatic systems.
Some Problems of Interaction between the Automatons (agents) in the Hexapod Walking Robot During the Locomotion Process
Machavariani G. A.
Institute of Cybernetics
Abstract. Different forms of interaction between the automations of hexapod walking robot are analyzed. Supposing that there could exist a wide range of such interactions, two opposite cases of interaction between the automations are discussed. In the first case, for achieving its aim, one automation hinders the achievement of the aim of the other automation and vice versa. Thus, the simultaneous operation of these automations is impossible. In the other case, the interaction between the automations consists in that one automation achieves its aim more successfully in the presence of the other automation occupied by resolving its “private” problem than it would in the absence of this other automation. Such an interaction between the automations bear similarities with the phenomenon of symbiosis, which occurs in the world of living organisms.
Keywords: robotics, walking robot, automation, interaction, collective behavior, multiagent system.
Friction and wear peculiarities of the brake lining based on nanoporous composition
Kutelia E.R., Gventsadze D.I., Tsurtsumia O.O., Datiashvili R.G. and Gventsadze L.D.
Republic Center for Structure Researches of Georgian Technical University
R.Dvali Institute of Machine Mechanics
REDA Ltd, Kutaisi
Abstract: The present work deals with the study of the effect of introduction of the nanoporous ingredient the brake lining material composition on its frictional and wear behavior. The introduction of nanopores (200-500nm) occurred by using the diatomite particles. The investigation of samples of the elaborated porous composition and the peculiarities of wear and friction mechanisms showed that the microstructure and the thermo-stability (up to 900OC) of particles caused the high tribological parameters under both dry and wet friction conditions. The proposed material does not provoke the squeal during friction with brake disk and has more esthetical (non-black) and easily washable wear products. As the binding agent for the new-generation composition material of brake lining, there was used chemically modified phenol-formaldehyde resin, which provided the stability of tribological parameters of brake pads at working temperature up to 600OC and prolonged twice as much the brake pads lifetime. The variation of the content of barite and diatomite in the composition allows us to control the friction coefficient of the developed materials in the required range. The dry friction coefficient values for our material varies in the range of 0.3-0.45 and keeps the same friction coefficient values during wet friction as well. The obtained results of the laboratory and field tests give us reasons to infer that the developed new materials may serve as efficient substitutes for brake pad linings fabricated from conventional non-asbestos materials.
Keywords: automobile, brake pad, lining, nanoporous composition, friction, wear.
Physicomechanical properties of nanocrystalline Ti-8Ni-Ge - system Alloys
Mikaberidze M.P., Shuradze O.V., Darsavelidze G.Sh., Gachechiladze A.A., Gabunia V.M.,
Gozalishvili E.I., Gordeziani G.A. and Tavadze L.F.
F.Tavadze Institute of Metallurgy and Materials Science
Abstract. New titanium alloys of system Ti-8Ni-Ge were obtained by fast-quenching method. The structure, microhardness, internal friction, shear modulus and distribution of the alloying elements on the alloy surface were studied. The X-ray analysis revealed the nanocrystalline structure of all the alloys under study.
Keywords: еitanium, germanium, alloy, fast quenching, nanocrystalline structure, microhardness, X-ray analysis, internal friction, shear modulus.
SUMMARY
On the possibility of application of various carbon materials as solid deoxidizers of iron oxides in the process of electrocontact heating
Loladze N. T., Tserodze M.P., Zaslavski S.I,, Tabidze R.G. and Pkhaladze T.B.
Georgian Technical University
The work is dedicated to the identification of the possibility of performing the process of direct deoxidation of iron ore to metallic iron using the electrocontact heating method. The electric conductivity of various carbonic materials - deoxidizers both in the initial state and after their special thermochemical treatment was studied. It was revealed that, after technological treatment, a gamma of carbonic materials can be used in the reaction of iron deoxidation by using the electrocontact heating method.
Keywords: solid carbon, deoxidizer, iron ore, electrocontact heating.
SUMMARY
DEVELOPMENT OF a MATHEMATICAL MODEL OF THE TRIVIAL TRIGGER
Benashvili A.M. and Imnaishvili L.S.
Georgian Technical University
The functioning of trivial trigger in view of the dynamics of changes in the input signals is considered. The method based on the application of differential variables is proposed for the formal description of the character of change in the input signals of trivial trigger. The characteristic equations for trivial triggers have been derived.
Keywords: synthesis, mathematical model, difference elements, trivial trigger.
Summary
Correcting properties of linear code 3B4B
Nanobashvili D.V. and Nanobashvili V.V.
Georgian Technical University
An original method of correction of single errors in linear code 3B4B is proposed. It is demonstrated that the application of this method allows us to correct 44% of single errors, which improves significantly the quality indices of fiber-optic communication systems.
Keywords: linear code 3B4B, disparity, valid combination, forbidden combination, error detection, error correction.
summary
Investigation of the quality of sleeves and pipes by using statistic methods
Papava K.G., Chkartishvili I.V., Melashvili Z.N., Tutberidze A.I., Khundadze K.G. and Gamsakhurdia Dj.V.
F. Tavadze Institute of Metallurgy and Materials Science
A mathematical model of tube rolling using a piercing mill has been constructed. The vast field of factors affecting the process has been restricted to those largely responsible for the quality (by nonuniform pipe wall thickness and skin). It was established that there was a strong relationship between the quality of pipes (by nonuniform wall thickness and skin) and the rotational speed of rolls.
Keywords: pipe rolling, pipe, sleeve, quality, piercing mill, statistic method.
Summary
Vibrations of the drill pipe string during drilling with cone drill bits
Gelashvili G.O.
Georgian Technical University
The vibrations of the drill pipe string during drilling with cone drill bits were studied. The stated problem was solved by using the expansion of the particular function, which was the solution to the problem without initial conditions, into the Fourier series. For studying the type of vibrations, their simulation was performed in the Matlab system.
Keywords: drill pipe string, vibrations, cone drill bit, Fourier series.
Microwave sensors as a tool for
nondestructive diagnostics
Chakhnakia Z., Didebashvili G., Khvitia B., Khuchua N., Sklarczyk Ch. and Melev V.
Research and Production Complex (RPC) “Electron Technology ”
Iv.Javakhishvili Tbilisi State University
Fraunhofer Institute for Nondestructive Testing,
Saarbruecken University, Germany
Abstract. In the present work different concepts of a hybrid microwave sensor (MS) design have been studied to select an optimal high performance, a relatively simple option, allowing further integration into a monolithic device. The theoretical and experimental investigations were carried out for two options of MS based on the quadrature principle for licensefree frequencies 2.4-2.5 GHz and 5,7-5,8 GHz to control parameters of industrial materials. The first, frequently used, heterodyne configuration includes two oscillators (RF and local), and the I-Q demodulation is carried out at an intermediate frequency which serves for signal transfer to a PC card performing data digitalization. The second, homodyne configuration, is based on the direct conversion of the reflected RF signal and differs from the other versions by containing a frequency synthesizer-based oscillator and other microwave building blocks which can be integrated into a chip. The comparison of RF characteristics and sensitivity of both types of MS made it possible to give preference to the homodyne configuration, especially with allowance for the simplicity of the original design. Commercial plastics (Sylomer) with different porosities were selected as the object under investigation (OUI). Suitable methods using special software for automatization of measurements and data processing were developed. Quite a satisfactory agreement between the simulation and the experiment, especially significant quasi-linear dependences of the signal amplitude on the OUI density, was demonstrated. In parallel, library elements for GaAs-based MMICs were developed, and the chip layout of the receiving part of the 5.8-GHz sensor was designed. Other possible applications of the results are discussed.
Keywords: microwave sensors, nondestructive diagnostics, industrial materials.
Summary
Proccesses of management of operational risks in the automated system
Kiknadze M.G., Petriashvili L.N. and Gvaramia E.G.
Georgian Technical University
A scheme of “proper” organization of the project for creating the system of management of operational risks in the bank is presented. The management system must provide a complex resolution of organizational, methodological and informational tasks.
Keywords: automated system, operational risks, management, bank.
MATHEMATICAL MODELING of FUNCTIONING OF the COMMERCIAL BANK
Obgadze T.A. and Giguashvili N.T.
Georgian Technical University
Abstract. On the base of common mathematical models, the model of functioning of the commercial bank has been constructed. In the case of definite values of ratios, the constructed mathematical model is reduced to the Lorenz model. The dynamics of bank operation was studied, and the financial interpretation of strange Lorenz attractor was given using Mathcad..
Keywords: commercial bank, operation, mathematical modeling, Lorenz model.
Summary
Forecasting of The optimal structure of electric power capacities with consideration for ecological aspects
Arabidze N.T. and Gudiashvili M.N.
Georgian Technical University
There is proposed a model of optimal structure of development of electric power capacities with consideration for ecological and economical conditions in the country. In 2012-2015, a number of hydroelectric stations and the stations fueled by nontraditional energy sources are to be put into operation in Georgia. According to the proposed model, it will be expedient to build the hydroelectric stations with controlling reservoirs of the capacity of 100MW, which will operate with peak load. It will also be expedient to construct thermal power stations with the capacity of 100 MW and 200 MW fueled by gas or biofuel.
Keywords: power industry, ecology, electric power capacity, optimal structure, forecasting, biofuel.
Summary
Aerial tramway system for gripping and transportation of piece load of different dimensions
Iashvili N.G. and Iashvili G.N.
Iv. Javakhishvili Tbilisi State University
There was designed an aerial tramway system for gripping and transportation of piece load of different dimensions: cases, barrels, sacks, boxes, rolls, bales etc. The proposed design extends the capabilies of the system and eliminates the probability of load damage during gripping. Applications include cargo handling at railway stations, sea and river cargo ports, industrial construction sites, warehouses, in food and processing industry, etc.
Keywords: cargo, gripping, transportation, aerial tramway.
Summary
Interwheel differential with variable transmission ratio
Varsimashvili R.Sh. and Kakhiani M.R.
Georgian Technical University
Georgian Engineering Academy
There is discussed the automobile differential gear with variable transmission ratio with using the elliptic conical wheels which have a higher blocking coefficient than the one that could be achieved by increasing the angular velocity and the turning moment of wheels. The use of such a gear gives the vehicle higher practicability, good turning ability, better monoeureability and improves its running efficiency.
Keywords: vehicle, interwheel differential, variable transmission ratio, blocking coefficient, practicability, turning ability.
Nonferrous Metal Production in Georgia (II millennium B.C.)
Japaridze I.G., Inanishvili G.V. and Hauptmann A.
National Museum of Georgia
O. Lortkipanidze Center for Archaeological Research of Georgia
Abstract.The results of chemical-technological research of Georgian archaeological bronze dated back to the Middle Bronze Age. The new data completely correspond to common traditional schemes of manufacture of nonferrous metals used in the II millennium B.C.
Keywords: metallurgy, alloy, Middle Bronze Age, trace elements, arsenical copper, tin bronze.
SUMMARY
Structure of hexaaquanickel (II) dichloride bis(hexamethylenetetramine) tetrahydrate
Miminoshvili E.B., Vardosanidze T.O., Ediberidze D.A. and Beridze L.A.
Georgian Technical University
The University of Georgia
Tbilisi State Medical University
There is investigated the structure of hexaaquanickel (II) dichloride bis(hexamethylenetetramine) tetrahydrate ([Ni(OH2)6]Cl2(Ur)2∙4H2O) at 153(2)K; (а=9.2845(7)Å; b=9.3074(7)Å; с=9.3940(7)Å; a=119.476(2)º; b=94.312(2)º; g=101.053(2)º; V=679.80(9)Å3; P-1; Z=1; R= 0.0386).
Keywords: crystal structure, hexamethylenetetramine, nickel, X-ray structure analysis.
Summary
Silicate enamel coatings for protection of pipelines against internal corrosion
Berdzenishvili I.G.
Georgian Technical University
The basic factors causing the corrosion and the character of local failures of pipelines are discussed. The expediency of using the pipes with protective silicate enamel coatings is justified. The results of experimental-service testing of such coatings under severe corrosive conditions are presented.
Keywords: pipeline, internal corrosion, enamel coatings, protection.
Summary
Protective Action of Reused motor oil
Kandelaki A.Sh., Kvavadze M.G. and Kandelaki Sh.A.
Akaki Tsereteli State University, Kutaisi
The atricle deals with the method of protection of metals from corrosion. It also concerns with the method of conservation of accurate controlling equipment, i.e. covering its surfaces, with used motor oil . It is proved that the reused oils by their structural characteristics, as well as by their composing substances active on the surface, are quite efficient isolating means for protecting the equipment against agressive action of the environment.
Keywords: reused motor oil, equipment, corrosion, protective action.
Summary
Determination of Heavy Metals in the soils of Tbilisi and Rustavi
Guguchia M.M., Supatashvili G.D., Loria N.V. and Gurjia Z.G.
Iv. Javakhishvili Tbilisi State University
The content of heavy metals in the soils and dust in Tbilisi and Rustavi is discussed. It was determined that the amount of lead and zinc in the soils of those cities was higher by an order of magnitude than the background. The anthropogenic impact in reference to the content of cadmium, vanadium, arsenic and nickel in those soils was less significant. In the upper layer of the soil in Tbilisi, the annual aeolian arrival of lead and zinc made up 1.1-1.2% of their total amount.
Keywords: soil, city, heavy metals, content.
Summary
A new method of production of schweinfurth green
Gigauri N.D., Mitaishvili G.E., Gugauri R.I. and Bagaturia L.V.
Iv. Javakhishvili Tbilisi State University
R. Agladze Institute of Inorganic Chemistry and Electrochemistry
It is demonstrated that arsenic is almost completely isolated from cinder by higher monobasic aliphatic alcohol (the degree of isolation is As>99%) if solid mass is subjected to azeotropic drying. The obtained alcohol extracts can be used as raw materials for commercial production of Schweinfurth green 3Cu(AsO2)2× (CH3COO)2Cu. Schweinfurth green is widely used as an insecticide in agriculture.
Keywords: Schweinfurth green, production process, insecticide, aliphatic alcohol, agriculture.
SUMMARY
Dioxa- and dithiacylcloalkyl azodyes
Gagolashvili M.Sh.
J. Gogebashvili Telavi State University
Considerable recent attention has been focused on the chemistry of diheterocycloalcanes. Due to their high reactivity, dioxa-, dithio-, diozo- and other cycloalkanes are used in various fields of industry. The availability of initial products, mainly the products of oil refining, allowed us to synthesize azodyes of different structure, namely 1,3 dioxane-, 1,3 dithiane- and 1,3 dithiephan-containing azodyes. There were obtained 12 new azodyes, their structure was studied and their UV and IR spectra were examined. The stability of the obtained dyes under different physical-chemical influence was tested.
Keywords: azodyes, dioxacycloalkyl, dithiacycloalkyl, synthesis.
Summary
A bioelemental method of determination of zinc, copper, manganese and nickel in human hair
Rcheulishvili A.N. and Chikobava E.A.
E. Andronikashvili Institute of Physics
GPC Ltd.
The content of zinc, copper, manganese and nickel in the hair of people’s of both sexes and of different age was determined by atomic absorption spectrometry. The method allows using the easily available biological material for examining the organism in normal state and at probable metallic intoxication. The regularity of dependence of the content of these microelements on the sex and the age was revealed. The content of zinc and copper decreased with ageing; the content of these microelements was higher in women’s hair. Thus, this method could be used for screening the population with the aim of determining the norms of essential microelement content. The content of zinc, copper, nickel and manganese in children living in Chiatura City, which is a biogeochemical province, was also studied. Our investigation justified a regular increase in the content of manganese in the organisms of Chiatura citizens’. The changes in the content of three other microelements (Zn, Cu and Ni) were observed. These changes were more distinct in boys than in girls. The proposed method can be recommended for controlling the biogeochemical endemia due to its simplicity.
Keywords: bioelemental analysis, atomic absorption spectrometry, hair, zinc, copper, manganese, nickel.
Summary
Basic methods of biological treatment of waste waters
Dolidze A.V.
Georgian Technical University
Basic methods of biological treatment of waste waters are discussed. The stages of waste treatment by using the anaerobic decomposition and the groups of industrial wastes are described. Much attention has been given to synthetic surface-active compounds, pesticides and oil discharge or spilling on the ground, which cause the pollution of ground waters and potable water sources.
Keywords: waste waters, water pollution, biological treatment, basic methods.
Summary
Investigation of the process of microbiological leaching of metals from technogenic wastes
Tsabadze S.Z., Mchedlishvili M.V. and Khvedelidze N.M.
Scientific-Practical Ecotechnology Center Ltd.
Model tests of biological leaching of metals from mining wastes of three types (sulfide tailings, barite tailings and carbonate dumps) were performed. For this purpose, bacteria Thiobacillus ferrooxidans isolated from the water running from the dumps were used. The changes in the pH value during the process of bioleaching were studied. The model tests showed that it was possible to use the proposed method for removal of heavy metals from polluted areas. In total, at tank bioleaching, the content of Cu2+ decreased by 85% in sulfide tailings, by 70% in carbonate dumps, and by 30% in barite tailings, At secondary bioleaching of barite tailings by using the cluster leaching, the transition of copper ions increased and made up 95%.
Keywords: metals, technogenic wastes, microbiological leaching, sulfide tailings, barite tailings, carbonate dumps.
Summary
COMPARATIVE STUDY OF POTATO BACTERIOSIS DEFIANCE
Davitashvili M.D.
J. Gogebashvili Telavi State University
A study on 105 potato pathogenic bacterial strains isolated in different regions of Georgia has been performed. On the basis of morphological and cultural-physiological, as well as of pathogenic features, 68 strains out of 105 tested were identified as Erwinia sp., and 24 strains – as Pseudomonas sp. Potato pathogenic bacterial strains sensitivity towards specific bacteriophages has been researched. Part of tested phytopathogenic strains contained temperate phages having the features characteristic of the Syphoviridae family.
Keywords: potato, bacteriosis, pathogenic bacterial strains, comparative analysis.
SUMMARY
On the prospects of application of natural antiseptic to production of juice and wine
Bibiluri N.Sh., Ebelashvili N.V., Salia E.Sh., Chkhartishvili N.N. and Shubladze L.A.
Georgian Technical University
Institute of Horticulture, Viticulture and Wine –Making
Preliminary data on the use of colloid silver as a preserving agent for juice and wine are presented. It is demonstrated that colloid silver is promising as a preservative for production of juice and wine.
Keywords: production process, juice, wine, colloid silver, preservation.
Summary
Application of highly efficient enzymic preparations to wine production
Godabrelidze A.A., Kalatozishvili E.I., Ormotsadze M.L. and Mujiri L.A.
Institute of Horticulture, Viticulture and Wine-Making
It is demonstrated that the application of enzyme Inozyme +YOC 902, an endogenous enzymic complex and laser radiation promotes the alcoholic fermentation at relatively low temperature (16-180C). Their application is recommended for production of high-quality wines. It is expedient to use them for treatment of wine materials at late harvest and/or unfavorable weather conditions. It is noteworthy that the wine materials retain their variety aroma and yield harmonic and high-quality products.
Keywords: wine production, enzymes, endogenous enzymic complex, alcoholic fermentation, wine materials.
Summary
isolation of endemic pure wine yeast of killer phenotype for production of red table wines
Salia E.Sh., Ebelashvili N.V., Shubladze L.A. and Chkhartishvili N.N.
Institute of Horticulture, Viticulture and Wine-Making
From wild endemic populations of wine yeast, pure cultures of killer phenotype were isolated. Their morphological, physiological and biochemical properties were studied. By their properties and by the degree of decreasing activity, three promising strains Saccharimyces vini, GIM 7 and GIM 100 were selected for production of red wines.
Keywords: red wines, wine yeast, endemic pure cultures, isolation.
SUMMARY
spontaneous spread of wine yeast of killer phenotypes in production populations of Georgia
Salia E.Sh., Ebelashvili N.V., Shubladze L.A. and Chkartishvili N.N.
Institute of Horticulture, Viticulture and Wine-Making.
The composition of production populations of wine yeast in main wine-making provinces of Georgia in the wine-making seasons of 2005-2007 was studied for the content of yeast of phenotypes K(Killer), N (neutral) and S (sensitive). It was revealed that low content (2-3%) of killer yeast facilitated the favorable conditions for pure cultures of wine yeast of killer phenotype to manifest high competitive power.
Keywords: wine yeast, phenotype, killer, production population.
Summary
Priority Issues of the Legislative Basis for the Urban Heritage Protection in Georgia
Tumanishvili L.P.
Georgian Technical University
The overview of the development of the legislative basis for performing the work associated with the cultural heritage protection is presented. The author is focused on the issues of the historical urban building protection, as well as on the regulations elaborated alongside these activities at different stages of development of modern Georgia. The article provides the references to particular projects and studies concerning the safeguard plans, which gave firm foundation to the amendments and additions to the legislative basis for the urban heritage protection in the historic cities of Georgia.
Keywords: urban heritage, protection, legislative basis, Georgian cities.
Summary
Methodology of Identification of Cultural Heritage Protection Zones
Tumanishvili L.P.
Georgian Technical University
Identification of urban heritage protection zones is one of the significant issues of the cultural heritage protection. The article is focused on the methodology of identification of the heritage protection zones. Based on the study of historical cities of Georgia – Tbilisi, Batumi, Gori, Poti and Kobuleti, as well as on the results of the recent studies, the methodological sequence of works and the profile of each stage are described.
Keywords: urban development, historical cities, heritage protection zone, methodology
SUMMARY
Identification of the Cultural Heritage Protection Zones in Batumi CITY
Tumanishvili L.P.
Georgian Technical University
The article deals with the identification-verification of the heritage protection zones of Batumi City. The description of the sequence of works undertaken with the author’s participation is presented. Based on the analysis of the extant documentation and the study of the urban heritage in situ, the protection zone system of Batumi was elaborated – the state protection zone was verified from the standpoint of its enlargement; the regulated construction zone and the historical landscape protection zone were identified.
Keywords: urban building, historical landscape, protection zone, cultural heritage, Batumi City.
Some Aspects of Formation of Rustavi as a CITY
Papuashvili E.A.
Georgian Technical University
Abstract. The reasons for formation and establishment of Rustavi as a city from the ancient time till now are discussed. . Major emphasis is made on current socio-economic state of the town, which raises the question on the necessity in preparing and realizing the concept of prospective development of Rustavi City.
Keywords: Rustavi City, formation, perspectives.
How to Breathe New Life into the City
Papuashvili E.A.
Georgian Technical University
Abstract. The article deals with the city, namely Rustavi City, which has lost its function. The major issue foresees responsibilities on accomplishing reconstruction and planning activities in order to improve living conditions of the city inhabited districts.
Pursuant to the new concept for city development fundamental measures should be developed for solution of a number of problems.
Keywords: city, development, reconstruction, dwelling conditions.
Summary
Processing of the data On consumer properties of the products of textile and light industry by methods of mathematical statistics (paretto’s method)
Tkhelidze N.N. and Gintibidze N.G.
Akaki Tsereteli State University, Kutaisi
The data on consumer properties of the products of textile and light industry are presented by using Paretto’s diagrams, which provides high efficiency when it is necessary to compare and to rank by importance a number of factors causing the deterioration of product quality. Paretto’s diagram on outward defects of clothes and fabrics was constructed, and the most common defects were revealed.
Keywords: light industry, products, consumer properties, defects, mathematical statistics, Paretto’s method, data processing.
SUMMARY
determination of the coefficient of loss of quality and price of the product By its Consumer Properties
Tkhelidze N.N. and Gintibidze N.G.
Akaki Tesreteli State University, Kutaisi
A method of determination of the coefficient of loss of quality and price of the product by its consumer properties is considered. The coefficients of loss of quality are entered into the corresponding database and are used for recomputation of the product price.
Keywords: product quality, coefficient of loss of quality, consumer properties, price recomputation
The Importance of Venture Capital for Georgia
Bebiashvili N. D. and Magradze M.D.
Georgian Technical University
Abstract. World experience shows that accelerated formation of scientific-technical progress and investment potential of the developed countries is supported by venture financing. Basic means for supporting the venture project is the foundation of business-incubators. The resources needed for project financing may be accumulated with the help of creation of guaranteeing funds with participation of state organs and business. In our opinion, such a kind of investments will prove in Georgia too, namely , for starting and small businessmen, inventors, scientists and engineers, which try to realize independently new original ideas and prospective plans. Consequently, one of the most prior objectives of Georgian economical development must be the investment of venture capital, the development of small and middle-scaled businesses and the establishment of new, promising enterprises.
Keywords: venture capital, venture financing, investments.
Summary
New size-stoutness assortment of footwear with account for three size factors
Grdzelidze M.G.
Akaki Tsereteli State University, Kutaisi
Production of footwear with account for three size parameters, i.e. foot length, bundle part circumference and external bundle width, would meet the demand for comfortable shoes. In its turn, this would bring profit to footwear producers. We propose a new scale of size-stoutness assortment of footwear with account for the abovementioned size parameters, which would promote the resolution of the problem of the market and the consumer.