SUMMARY
SUMMARY
Georgian Engineering Academy : The state of the art and prospect
Prangishvili I.V. and Makharashvili L.S.
Georgian Engineering Academy
General information about Georgian Engineering Academy (GEA) is presented. The basic tasks of GEA are considered. There is described the state of the art in the field of power engineering, machine- and instrument building, construction, transportation, metallurgy, pharmacochemistry, biotechnology, and wine-making. The achievements in the fields listed above are highlighted. Some promising works are considered.
Keywords : Georgian Engineering Academy, general information, state of the art, prospects.
SUMMARY
FUNDAMENTAL PROBLEMS OF GEORGIAN METALLURGY AT PRESENT
Zhordania I.S., Baratashvili I.B. and Kashakashvili G.V.
Georgian Engineering Academy
There are presented the state of the art and the prospects for development of Georgian mining-metallurgical works: Rustavi Metallurgical Works and Zestafoni Ferroalloy Works, and mining works: Chiatura Manganese and Madneuli Companies.
Keywords : metallurgy, Georgian mining-metallurgical works, prospects for development.
A BRIEF ANALYSIS OF THE PROBLEMS OF GAS SUPPLY, TANSIT, STORAGE AND CONSUMPTION: THEIR PROSPECTS IN GEORGIA
Eliashvili D.K.
The state of the art and the prospects for development of gas mains supplying Western and Southern Regions of the Black Sea are described. Considerable attention is given to underground gas storages in Transcaucasia. The problems of gas supply and consumption in Georgia, where considerable losses are observed, and the prospects of efficient gas consumption are considered.
Keywords : gas supply, consumption, storage, transit.
Summary
ON THE OIL - AND GAS-BEARING POTENTIAL OF THE CARBONIFEROUS SEDIMENTS
( West Georgia)
Suladze A.I.
Georgian Engineering Academy
Keywords : carboniferous sediments, oil-bearing potential, gas-bearing potential.
Summary
VARIABLE-Geometry rotor and its effective applications
T urmanidze R.S.
Georgian Technical University
Distinctively different requirements have been advanced to the rotor at the takeoff and cruise flight modes. Therefore, the use of rotors with the fixed geometry parameters significantly reduces the efficiency of the use of various air vehicles. The solution of this problem is possible by creation of variable-geometry rotors, the use of which will be especially effective in the case of the airplanes with vertical takeoff and landing. At the Georgian Technical University, together with Boeing Company (USA), the variable-geometry rotor was designed and manufactured. This design provides simultaneous changes in the rotor diameter, the pitch angle of each blade, and their twist during the flight. In the present work, the improvement possibilities of operation characteristics of the aircraft with variable-geometry rotors are analysed. The test results on a special stand are presented and the efficiency of their application in various fields of technology is shown.
Keywords: variable-geometry rotor, air vehicles, takeoff, application.
SUMMARY
Turmanidze R.S., Betaneli A.I. and Sanadze G.O.
Georgian Technical University
The bases of the theory of designing of the variable geometry rotor as classification and a procedural model of designing were developed. In the offered classification, possible versions of the rotor are considered. In the procedural model, the model of man-machine operations at designing of variable geometry rotor is considered.
Keywords: p ropeller, blade, diameter, twist, thrust, variable geometry rotor.
Fractal method of prediction of earthquake cycles
Kervalishvili P.J., Ediberidze A.G. and Gugushvili A.Sh.
Abstract . Application of the methods of nonlinear dynamics in seismology allows investigating the chaotic processes. Particularly, the motion of seismic spots in depth can be used as an index of changes in the tectonic strain in time. For determination of earthquakes, and not only earthquakes, the Hurst statistics is used. The motions of the Hurst index, the magnitude of deviation of acceleration, and the normed deviation of acceleration are introduced.
Keywords: earthquake, prediction, fractal method.
Sensors for measurement of energy carrier parameters
Kervalishvili P. J.
Georgian Technical University
Abstract. Some examples of designs and operation principles of high - quality sensors for precise flow, pressure and velocity measurements are described. These sensors and devices on their base look very promising for application as measuring elements for gas and oil pipeline management on their base and control systems.
Keywords: sensors, energy carriers, flow, pressure, velocity.
SUMMARY
Calculation of the stressed state of elastic and tough-elastic spherical shells
Dumbadze A.A.
Georgian Engineering Academy
Georgian Technical University
The set of basic equations for elastic spherical shells was reduced to a single equation containing the sought-for analytical function. The similar boundary problem for tough-elastic shells contains sought-for function forms. In both cases, the calculation is presented in the series form.
Keywords : spherical shells, stressed state, calculation.
SUMMARY
Elaboration of the conceptual Model of decreasing the wear of gears and bearings of automobile transmissions at gavitation by using oils containing highly dispersed amorphous carbon
Abramishvili G.S., Iosebidze D.S., Chkheidze A.P., Kutelia E.R., Kipiani G.O. and Zurabishvili L.A.
Georgian Technical University
The conceptual model of decreasing the wear of gears and bearings of automobile transmissions at cavitations by using oils containing highly dispersed amorphous carbon (HDAC) is presented. It is demonstrated that, in contrast to common commercial oils, the oils containing HDAC promote reduction of the roughness of the abovmentioned gears and bearings. Under vibration, the intensity of tribosynthesis of the secondary surface structure, including the diamond phase, increases significantly and provided high wear resistance of rubbing surfaces.
Keywords: gears, bearings, wear resistance, cavitations, oils highly dispersed amorphous carbon.
MONITORING OF STRUCTURAL INTEGRITY OF
RAILWAYS BY FIBER-OPTIC SENSORS
Bakhtadze J.A., Tavkhelidze D. D., Bliadze S.N, Seskuria Z.T.,
Lagundaridze G.O. and Tsikarishvili M. A.
Georgian Technical University
Abstract . There is presented a new diagnostic system for railways using fiber-optical sensors, which provide uninterrupted inspection not by the time resource, but according to the technical state. Within the frame work of the model of the sensor function, there has been found the analytical relation between the topological specifications describing the deformation area and the tensor parameters of the matrix of the complex and strained condition (that arises in the construction under a dynamic effect) as the response to the dynamic load at the optical- fiber sensor output.
Keywords: railway, rails, fiber-optic sensors, diagnostics.
Global System of Security of Power Systems
Bakhtadze J . A ., Zambakhidze L . Yu ., Lagundaridze G . O .,
Georgian Technical University
Abstract . For monitoring of the structures of the power system around the perimeter of the Enguri River, a global security system using fiber-optic sensors has been developed.
For construction of the united security system and determination of the most vulnerable places of the appearance of defects and determination of the parameters affecting the efficiency of the structures of the power system, the stressed-strained state of these structures was analyzed. Then the metrological properties of fiber-optic sensors were estimated; their new designs, methods of their mounting and fixing on the structures, and the units of their joining were developed; their compatibility was investigated; optic cables for receiving and transmission of information were chosen.
The application of the developed security system allows changing from the control of the power system structures by the “time resource” to the control by their “technical state”, and also monitoring of the structures in the process of both their construction and operation.
Some lay-outs of mounting of the fiber-optic sensors on the structures under study are presented.
Keywords : security system, energetic systems, fiber-optic sensors.
Summary
TRANSDISCIPLINE opportunities in simulation OF BIOENERGOINFORMATIONAL and energetical processes
Kamkamidze K.N.
Georgian Engineering Academy
Georgian Technical University
The problems of improvement of bioenergoinformational and energetical processes with the help of cybernetical methods are considered. It is demonstrated that computer simulation allows us to use the laws characteristic of the processes proceeding in living nature in development of new promising designs and projects.
Keywords: energetic processes, bioenergoinformational processes, simulation, transdiscipline methods, new computer systems
SUMMARY
Structurization Models in the Coding Theory
Ananiashvili G.G. and Kipshidze Z.Sh.
Institute of Cybernetics
N. Muskhelishvili Institute of Computation Mathematics
By mathematical tools of the information theory, essential parallels between the coding theory and synergetic structural models are shown. By introducing an adequate abundant structure in irreversible dynamical systems, there is realized dissipated information (energy) compensation and return of the irreversible system to the initial stable state, i.e. the error (deviations) correction and system transition in the reversible regime.
Keywords: correcting code, structure, synergetics, enthropy, generalized information-energetic channel.
SUMMARY
A system approach to regional management
Tskhakaia K . Sh .
Tbilsystemotechnika Ltd at Mayor’s Office of Tbilisi
A system approach to regional management is considered. There are listed 16 conditions essential for realization of the system approach to the management of municipal facilities. This work is one of the first attempts to consider the regional management in the system aspect, and, thus, it must be interesting for the specialists working in management, including regional administration.
Keywords : regional management, system approach, municipal facilities.
Thermoelectric generators of current for SPACE, terrestrial and underwater applications
Kashia V.G, Bokuchava G.V and Sherozia V.A.
I.Vekua Sukhumi Institute of Physics and Technology
The thermoelectric generators designed for space, terrestrial and underwater applications at Sukhumi Institute of Physics and Technology (SIPT) are briefly described. The role of SIPT in the development of instrument-making in the country is emphasized.
Keywords: thermoelectricity, thermoelectric generator, thermobattery, reactor-transformer, thermoelement, current, energetic plant.
On Mathematical Modeling of the Weaving process
Tvalchrelidze A.K. and Bakuradze E.I.
Kutaisi Technical University
The basic dynamic equations of the flexible elastic thread are presented. For the boundary problem the numerical algorithm and program for the PC were composed. As an example, the process of taking-up of the thread from the bobbin is studied.
Keywords : flexible elastic thread, mathematical model, numerical algorithm, taking-up of the thread.
Computing e xperiment of coastal waves in the area of Poti:
Part 2. Results of modeling
Saginadze I. S.
In the second part of the work devoted to mathematical modeling of the wave mode in Poti Coastal Zone, some results of computing experiments are presented.
Keywords : coastal waves, computing experiments, modeling.
Computing e xperiment of coastal waves in the area of Poti:
Part 2. Results of modeling
Saginadze I. S.
In the second part of the work devoted to mathematical modeling of the wave mode in Poti Coastal Zone, some results of computing experiments are presented.
Keywords : coastal waves, computing experiments, modeling.
Porous Permeable Sintered Materials for Filtration of Liquids and Gases
Sharashenidze J.A.
Georgian Engineering Academy
The process of compaction of metallic powders for production of porous permeable sintered materials (PPSM) with specified properties was developed. There are suggested new designs of filtration devices and technological schemes of filtration of liquids and gases using PPSM, which promote simplification of the filtration process and improvemnts in the filtration medium, quality.
Keywords : metallic powder, compaction, porosity, permeability, filtration.
Summary
STUDY OF THE APPROACH AND LANDING CAPABILITIES OF AIRPLANE TU–154M IN LOW WEATHER
Tepnadze S.A. and Tavadze N.G.
Georgian Engineering Academy
Georgian Technical University
The approach and landing capabilities of airplane TU-154M under showers and wind shear were studied. At speed loss as a result of entering the wind shear or the shower area, the center-of-gravity shift of the airplane reduces the reserve time of its handling. It is demonstrated that, in dry atmosphere at entering the wind shear of the same intensity, the reserve time of the crew is less in the case of the Katabatic wind, i.e. it is more dangerous. However, the tail wind shear becomes more dangerous under the shower.
Keywords: airplane, approach, landing, shower, wind shear, time reserve.
SUmmARy
Improvement of the Process of Resistance Welding
Sulamanidze A.K.
Georgian Engineering Academy
Basic problems of resistance welding are analyzed. New criteria for estimation of the thermal state of the interelectrode zone are suggested. The aim is to provide a symmetrically located cast nucleus in relation to the contact plane of the parts to be welded together independent of their thickness and materials.
Keyw o rds : resistance welding, improvement.
SUmmARy
Improvement of the Process of Resistance Welding
Sulamanidze A.K.
Georgian Engineering Academy
Basic problems of resistance welding are analyzed. New criteria for estimation of the thermal state of the interelectrode zone are suggested. The aim is to provide a symmetrically located cast nucleus in relation to the contact plane of the parts to be welded together independent of their thickness and materials.
Keyw o rds : resistance welding, improvement.
REPLACEMENT OF Au, Pd AND Ag WITH NONPRECIOUS METALS AND NEW NANOTECHNOLOGIES
Khoperia T.N., Zedginidze T.I., Khoperia N.T. and Maisuradze L.G.
E.Andronikashvili Institute of Physics
Abstract. The results of the investigation of electroless metallization, which enable us to carry out micro- and nanominiaturization of electronic devices and to increase their reliability, are presented. The technologies developed allow obtaining coatings with desired properties, replacing adequately Au and Ag coatings with Ni alloy ones, excluding application of toxic substances, reducing time and labor intensity of device production, and excluding application of expensive equipment in production of piezoquartz resonators and filters, molnolitic piezoquartz filters, piezoceramic devices, photomasks, ICs, capacitors, etc. There is also presented a new nanotechnology. This nanotechnology allows one to produce photomasks and microdevices with nano-sized adjacent elements of different thickness made of various materials by single conventional UV photolithography. These advantages significantly extend functional capabilities of the device and simplify removal of undesirable gases and heat dissipation. The proposed technology allow one to exclude application of very expensive e-beam exposure equipment, X-ray masks with gold masking elements and photomasks with a light phase shift.
Keywords: microelectronics, nanotechnology, electroless metallization, nano-sized particles.
SUMMARY
The hydrodynamic method of removal of bottom sediments from gravity sewage collectors
Tabukashvili K.F. and Makatsaria K.A.
Georgian Technical University
The hydroaerodynamic method of cleaning the sewage collectors is suggested. The method differs from the existing ones in that, for formation of self-cleaning bottom velocities, neither a rise in the maximum water flow rate nor a collector slope is needed. The essence of the method consists in the effect obtained by the action of the air stream on the water flow resulting in artificial redistribution of its velocity field. It is demonstrated that structural changes in the velocity field of the liquid flow facilitate the increase in the active load on the solid particles settled on the collector bottom. The amount of bottom sediments carried out by the flow increases 5-13 times under wave conditions as compared with the everyday conditions.
Keywords : sewage collectors, bottom sediments, cleaning, hydrodynamic method.
SUMMARY
BASIC INVESTIGATION RESULTS ON THE MODE OF OPERATION OF PRESSURE HYDRAUL IC TRANSPORTING SYSTEMS
Ìakharadze L.I.
G. Tsulukidze Mining Institute
Basic results of the studies on the m o de of operation of pressure hydraulic transporting systems work regimes are presented. They iclude transient regimes in hydraulic transporting systems; hydraulic shocks in pipeline during polyphase hydraulic mixture movement; abrasive wear of pipelines and centrifugal pumps; methods and means for reducing the hydroabrasive wear; protection of the hydraulic transporting systems against hydraulic shocks; measures for increasing the reliability and effectiveness etc.
Keywords : pressure hydraulic transport, transient regime, hydraulic shock, hydroabrasive wear, pipeline, pump, hydraulic mixture, mode of operation, reliability, longevity.
SUMMARY
ELECTRON INJECTOR
Dgebuadze G.N.
I. Vekua Sukhumi Institute of Physics and Technology
The problem of development of electron injectors (electron guns) is considered. The analysis of electron-optical systems was performed. As a result, the circular end configuration was recognized as optimum. The experimental results are briefly described, and their analysis is presented.
Keywords : electron injector, cathode block, millisecond beams, plasma, electron-optical system.
Summary
” Logistics – Service” – a Promising
Information system of management of orders and servicing the consumers Tsikhelashvili Z.I. and Tsikhelashvili I.Z.
Georgian Technical University
It is suggested to construct the prototype of promising in formation-logistic system “Logistics – Service” for management of orders and servicing the consumers. The basis for this system is the structural scheme of description of action at servicing the demands, approved in the international practice, and the parts of the artificial intellect for description of logistic procedures, designed by the author.
Keywords : information system, management of orders, service, logistics.
SUMMARY:
ON THE issue of technical and geological grounds for construction and service of hydraulic reclamation systems
Gobechia G.N. and Varazashvili N.G.
Georgian Engineering Academy
The important role of engineering geology in construction and service of hydraulic reclamation systems is considered. The intensity of the effect of reclamation systems on the environment is higher than that of other types of constructions. Hence, the character of technical-geological investigations for reclamation systems should differ essentially from those performed for other technogenic systems. Adverse processes can be prevented at the initial stages of service of hydrologic systems if the specific features of technical-geological factors have been taken into consideration in a proper way.
Keywords : reclamation, hydrosystems, engineering geology, construction, service.
SUBSTANTIATION OF THE PARAMETERS OF HOLE DIGGERS
Chalaganidze Sh.I.
Georgian Engineering Academy
There is presented the substantiation of the parameters of hole diggers. In forestry, one of the most labor-consuming procedures is hole digging for planting young trees. It is more difficult in mountainous regions, where application of available mobile hole diggers is impeded or even impossible. So, designing of highly efficient small-sized hole diggers is a topical problem. With that in mind, a special series of machines on the small-sized self-propelled chassis of class 0.2 has been designed. The series includes the hole digger designed for hole digging for planting young trees and other perennial plants in mountainous regions.
Keywords: hole diggers, parameters, substantiation, mountainous regions.
Summary
Theoretical Basis for Designing a slot-type Vine-Planting Machine
Lepsveridze Sh.I.
Georgian Research Institute of Mechanization and Electrification of Agriculture
For designing an effective version of the basic working part (furrower) of a vine-planting machine, the following parameters of the open furrow were studied: the zone of deformation expansion after the furrower has passed along; the depth and width of the open furrow; the height and inner and outer slopes of the crown etc. The design formula for the furrow filling coefficient and the empirical equation for soil deformation by furrower were derived. Basing on the obtained results, there were designed and produced 70 vine-planting machines, which passed state testing and were introduced into practice in basic vine-growing regions of the country.
Keywords : vine-planting machine, furrower, designing, theoretical basis.
THE USE OF BIORAG IN SERICULTURE
Gakhokidze R.A. and Kimutsadze E.V.
Iv. Javakhishvili Tbilisi State University
Abstract. At the treatment of mulberry with biorag, the resistance of the plant to the mycoplasmic disease – leaf rugosity increases. At a single treatment of diseased mulberry roots with biorag the immunity of the plant increases, and the prevalence of leaf rugosity decreases. After the treatment of the seeds with the biorag, the stimulation of germination capacity was revealed. At the same time, the biometric indices of the obtained seeds increased. It has been established that the use of the biorag increases biological and technological indices of the mulberry silkworm to a considerable extent.
Keywords : biorag, mulberry, leaf rugosity, silkworm.
Phages - Antibiotics of the 21 st Century
Kalandarishvili L.L.
Joint Stock Company BIOPHARM L
Abstract . Bacteria resistant to most or all available antibiotics cause more and more serous problems. So, there is a risk of going back to the problems having faced the humanity in the past when there were no antibiotics, and when uncurable infections and epidemics were widely spread. Despite the activities of pharmaceutical companies for recent 30 years, there have not been found any new classes of antibiotics. It is expected that the discovered possibilities of complete sequencing of microbial genomes and determination of molecular bases of pathogenesis will open new avenues of treatment of infectious diseases. With more and more zeal, they are seeking for other approaches to this problem. One of the results of such search in the revived interest in the therapeutic abilities of bacteriophages - specific viruses that attack only harmful bacteria and destroy pathogenic microorganisms.
Keywords : biotechnology, phage therapy, bacteriophages, preparations, prospects.
Simulation of the Process of Ethnogenesis
Dadunashvili S.A.
Georgian Technical University
The block diagram of an ethnic system was developed. The model of ethnogenesis adequate to it was investigated. The concept of an ethnic field is considered and classification of ethnic conflicts is offered.
Keywords : ethnogenesis, block-diagram, simulation, ethnic field, ethnic conflict.
Summary:
ON QUANTUM Magnetism, Polarization of physical vacuum and
psichophysical features of brain
Baazov N.G.
E. Andronikashvili Institute of Physics
An attempt is made to explain some energy-information phenomena by means of application of the theories of superstrings and supersymmetry on the basis of one of the models of physical vacuum considered as a dense package of its constituent elements – polarized phytons. The article is based on the oral paper presented by the author at 26-th International Symposium on Spin Waves held at A. Ioffe Institute of Physics and Technology, Saint-Petersburg, in 2002.
Keywords : quantum magnetism, physical vacuum, polarized phytons, psychophysical features of brain.
S UMMARY
Symbiosis as an Opportunity of Reaching a Compromise
in the Struggle for Existence
Dvalishvili E.S. and Khvedelidze M.A.
Georgian Engineering Academy
Institute of Cybernetics
International Informatization Academy
There is presented an overview of the phenomenon of life and contemporary data of natural science from the standpoint of the concept of duality of energy-information (CDEI). This concept allowed us 1) To extend the notion of self-organization of the energy-information work of matter. 2) To define Darwin’s law of natural selection as a specific manifestation of the global cyclic law of formation of structural levels of matter on the Earth. 3) To make certain that the principle of division of labour, which was realized as the principle of formation of the social society, had actually worked much earlier, at the stage of self-organization of the living cell via division of the unified working process into its components: metabolism – self-destruction and self-creation. 4) To make clearer the following notion: the man was created by the cyclic mechanism of self-organization of the work of matter.
Keywords: symbiosis, struggle for existence, duality of energy-information, concept, self-organization of the work of matter, o v erview.
SUMMARY
visualizatin of the "invisible" as a diagnostic method
Megrelishvili I.A.
G eorgian Engineering Academy
Aurology is one of the trends of medicine which combines ancient knowledge about man ’s "energetics" and contemporary technical methods of visualization of man’s aura. At present the basic task is extraction of maximum diagnostic information from the images obtained by instrumental methods. The aim of the present work is to reveal the links between the shape, color and intensity of the aura and various deseases. It is demonstrated that the dynamics of changes in the color and shape of the aura represents invaluable information about the changes in the man’s condition. Aurology can be efficiently used by physicians for both diagnostics and estimation of the treatment effectiveness.
Keywords : aurology, man’s aura visualization, diagnostics.
SUMMARY
Psyche Is a permanent Phenomenon
Kadagishvili L.G.
Institute of Cybernetics
There were conducted the experiments in which one of the possibilities of the exposure of unconscious psyche was given in perception. Found in the hierarchy of the cognition obtained by perception, the maximum exposure, typical to the moment of the cognition, is used as the initial moment of the irritation by which the effect of dream is achieved. The experiments have proved that the dream is the form of the unconscious, which allows us to say that psyche is a permanent phenomenon.
Keywords : cognition, consciousness, the unconscious, dream, model.
SUMMARY
The Role of Intuition in the Current of consciousness
Kadagishvili L.G. and Zakutashvili M.M.
Institute of Cybernetics
Georgian Engineering Academy
There are described the experiments which have proved, the fact that intuition terrifies the purposed information and enters the current of consciousness as an eidetic icon of the truth.
Keywords : intuition, purpose, consciousness, subsensoric perception.
SUMMARY
On the Ecology of the man
Melitauri G.N., Sudov B . A ., Khazaradze R.E. and Khazaradze K.R.
Caucasian Institute of Mineral Raw Materials
Institute of Sanitation and Hygienics
The problems of the dependence of man’s health on the environment pollution are briefly described. The conclusions drawn are based on long-term investigations performed by the authors in various regions of Georgia.
Keywords : ecology, environment, pollution, hygiene.
On the possibility Of measurement of the non - material substance parameter
Melkadze G. Yu.
Georgian Engineering Academy
The possibility of measurement of the non-material substance parameter is considered. The substantiation of the possibility of the effect of non-material substance on matter in general, and on the measuring instrument in particular, is suggested on the basis of the laws of dialectics.
Keywords : non-material substance, parameters, measurement .
