SUMMARY
UNCERTAINTY OF RAW DATA IN SYSTEMS
ENGINEERING
Prangishvili A.I., Namicheishvili
O.M., Zhghenti G.M. and Cholikidze L.G.
Georgian Technical University
The problem of choosing the law of probability
distribution of the random variable by the criterion of maximum entropy of this
quantity is examined as an isoperimetric problem of variational
calculus.
Keywords: parametric reliability,
differential entropy, principle of maximum entropy, Lagrange multiplier, isoperimetric
problem of variational calculus.
SUMMARY
FORMAL NEURON ADAPTATION USING THE WIDROW-HOFF
ALGORITHM
Prangishvili A.I., Namicheishvili O.M. and Gogiashvili M.A.
Georgian Technical University
St. Andrew the First-Called Georgian
University of the Patriarchate
of Georgia
The article deals with the study on the methods
of adaptation of the formal neuron paper when this neuron is used as a restoring device of the true value of the binary signal. It is
understood that, to the
formal neuron inputs different
versions of the same binary signal are fed with varying reliability, and the neuron
should restore the true value of the start signal in these versions. The
adaptation of the formal neuron becomes essential. The adaptation is inter-preted as the process that changes the weights of
formal neuron inputs for adjusting them
in accordance with the error probability of input channels. The task of the
control is to ensure the
higher impact of more reliable inputs on the accepted decision
(i.e. on the decoded signal) as compared to less reliable inputs. However, the adaptation can be implemented
in different ways, by means of different algorithms. In this article, we
consider the continuous adaptation. It is proved that, in the case of continuous
adaptation without feedback in accordance with the Widrow-Hoff
algorithm, the weights are formed in
proportion to those which deliver the maximum of Mahalanobis
distance.
Keywords: formal neuron, adaptation, continuous and cyclic
adaptation, Widrow-Hoff algorithm, Mahalanobis (generalized) distance, weight of the neuron
inputs.
TOTAL REVENUE FUNCTION AND INTEGRATED DEMAND MODEL
Demurashvili Sh.M., Macharadze T.D. and Milnikov A.A.
Georgian Technical University
Abstract. It is shown that the total revenue curve for a new nonlinear model of the
Demand-Price Relationship is piecewise differentiable, has no minimums, but
only maximums.The total revenue curve in backup
points xi, being continuous, has no derivatives. The notion of
Implicit and Explicit Maximums of the Total Revenue Function were introduced
and the criteria for determination whether the given maximum of Integrated
Total Revenue is explicit or implicit were elaborated.
Keywords: demand, price, total revenue, implicit maximum, explicit maximum.
ENERGY EXCHANGE IN THE HUMAN BODY
Kadagishvili L.G.
V.V. Chavchanidze Institute of Cybernetics,
Georgian Technical University
Georgian Engineering Academy
Abstract.The article deals with the energy
necessary for different vital processes in the human body gained as a result of
decomposition and oxidation of the organic substances contained in food;
substance and energy exchange between the body and the environment; processes
of ATP energy consumption needed for cell functioning. For analyzing the changes
in the phenomenon, we considered the example of the phenomenon of Zurab Bedia, who is unique with
his ability to light a bulb in the dark without any source of electricity. The
importance of ATP playing the primary role in the energy transformation is
shown by the example of the phenomenon.
Keywords: energy of the body, quantum
process, cell metabolism, energy transformation.
SUMMARY
RIVERBED PROCESSES AND STREAMFLOW
FEATURES ON SHARP MEANDERS
OF THE LOWER KURA
Abdurahimov S.G.
State Oil Academy, Azerbaijan
The article represents a brief analysis of riverbed formation properties of the streamflow on sharp meanders of the Lower Kura. The
analysis provides the guidance on practical importance of riverbed formation
issues. The basic features of the streamflow on sharp
meanders of the river are discussed.
Keywords: riverbed, formation, meander, streamflow.
SUMMARY
THE OVERALL ECOLOGICAL STATUS OF
THE WATER QUALITY OF THE MASHAVERA,
THE KHRAMI AND THE DEBEDA RIVERS
Bakradze E.M., Kuchava
G.P., Arabidze M.A., Buachidze
N.S., Kordzaia I.B. and Papachashvili
L.V.
National Environmental Agency
Institute of Hydrometeorology, Georgian Technical
University
The article deals with the hydrobiological
assessment of the Mashavera, Khrami
and Debeda Rivers. The ecological status was assessed
by the EQR-mean. Depending on the hydrobiological
assessment, the following statuses were assigned: the Mashavera
- Kianeti point
- “not satisfactory”, the Mashavera – Khidiskuri and the Debeda – Sadakhlo points - “bad”, and the Khrami - Khramhesi and the Mashavera - Didi Dmanisi points - ”good”.
Keywords: ecological status, water
quality, hydrobiological assessment.
SUMMARY
DEVELOPMENT OF THE TREATMENT TECHNOLOGY FOR WASTE
WATERS POLLUTED WITH HEAVY METALS USING THE MEMBRANE METHOD
Chkhubianishvili N.G., Kavtaradze M.L.,
Mchedlishvili G.S. and Kurtskhalia
Ts.S.
The article deals with the technology of
treatment of acid pit water by electrodialysis. The
optimal conditions of waste water treatment were established. The technology is
recommended to be used in projecting the pilot production.
Keywords: waste water, water treatment, acid pit water, electrodialysis, membrane method, heavy metals pollution.
PERIODIC LIQUID-CRYSTAL
CANO-GRANDJEAN STRUCTURE
AS A DISTRIBUTED-FEEDBACK LASER
ELEMENT
Aronishidze M.N., Chanishvili
A.G., Chilaya G.S., Nakhutsrishvili
I.G.
Tavzarashvili S.P., Tevdorashvili K.G. and Wardosanidze Z.V.
V. Chavchanidze
Institute of Cybernetics of the
Abstract. The
periodic liquid-crystal Cano-Grandjean structure formed in a wedge-shaped cell is
investigated for its application as a distributed feedback element in
dye-doped liquid-crystal lasers.
Keywords: cholesteric
liquid crystals, distributed-feedback lasers.
SUMMARY
INVESTIGATION OF THE PROCESS OF PLATING WITH
GRAPHITE COPPER
Papava G.Sh., Sherozia V.A., Dokhturashvili N.S.,
Maisuradze N.A., Gurgenishvili M.B.
and Chitrekashvili I.A.
Petre Melikishvili Institute of Physical and
Organic Chemistry, Iv. Javakhishvili
Tbilisi State University
The article deals with the process of plating
with graphite powder copper by using copper salt. The process is three-stage.
The first stage consists in deposition of a copper dioxide layer on the
graphite powder surface, the second – in its transformation into copper oxide,
the third – in reduction of this oxide to crystalline copper. The results of
investigation of the effect of the parameters of abovementioned processes on the plating
quality are presented.
Keywords: graphite, copper, plating, plating
quality, copper sulfate, dispersion.
SUMMARY
INFLUENCE OF LANTHANIDES AND THEIR
COMPOUNDS ON THE LIVING ORGANISMS
Kikalishvili M.I., Khaburdzania
N.D. and Kukhaleishvili M.G.
The article deals with the analysis of the
influence exerted by lanthanides and their compounds on living organisms, which,
according to some researchers, is caused by their ability to substitute calcium
ions in biological systems. Since lanthanides and calcium ions have the same
range of ionic radii and are characterized by similar chemical properties, the
competition is observed between them for seizing the active centers in
biopolymers. The substitution of calcium ions with lanthanides ions may cause a
dramatic change in the properties and molecular conformation in biopolymers,
which in turn will have a great impact on their specific functions. Lanthanides
and their compounds are used in agriculture. They are essential for normal
development of some plants (radish, peas etc.). Besides, they are used in
medicine for treatment of a number of diseases. Their compounds are classified
as having low toxicity and being ecologically safe.
Keywords: lanthanides, living organisms, lanthanide
compounds.
SUMMARY
BIOLOGICAL ASPECTS OF
HALOGENS
Kikalishvili M.I. and Chkhartishvili N.N.
Akaki Tsereteli State University,
Kutaisi
The article deals with the biological role of
halogens and their involvement in biochemical processes proceeding
in the human body. Fluorine
participates in the development of the bone tissue and the formation of tooth
enamel. Fluorine deficiency causes dental caries, whereas the excessive
exposure to high concentrations of fluorine may result in chronic poisoning
called fluorosis. Chlorine participates in the formation of the blood buffering
system, control of osmotic pressure and metabolic processes. Bromine
facilitates the inhibition processes in the central nervous system. Iodine is
important for the processes proceeding in the thyroid gland.
Keywords: halogens, biological role,
biochemical processes.
SUMMARY
NEW SAFE TECHNOLOGY OF MANUFACTURING THE SMOKED
STRONG DRINKS TO PREVENT GETTING OF CARCINOGENIC SUBSTANCES INTO THE FINISHED
PRODUCT
Tsivtsivadze T.I., Chigogidze
N.Sh., Gabrichidze Zh.Sh., Kldiashvili R.Sh., Skhiladze R.A.,
Sulakvelidze G.A. and Chigogidze E.N.
Research Center of Biologically Active Substances of the Georgian Technical
University
Technology of manufacturing the smoked drinks
with unique organoleptic indices belonging to soft table vodkas was elaborated.
The new safe technology chart of their manufacture that prevents getting of carcinogenic
substances into the finished product is proposed. Sanitary and hygienic
peculiarities of food safety for the proposed drinks are described. The factors
influencing the sharp decrease in the pro-carcinogenic substances in the
formation of smoke fume were revealed. Production of the special smoked water-concentrate
that is free of polycyclic aromatic hydrocarbons by removing the ballast and tarry substances is
envisaged. The issues of range expansion, competitiveness and production of
promising alcoholic products that are in high demand among the population are discussed.
Keywords: ethyl alcohol, alcoholic
fermentation, food concentrates, beverages, smoking, carcinogenic substances.
SUMMARY
APPLICATION OF GEORGIAN WINES FOR MEDICINAL
PURPOSES – ESSENTIAL COMPONENT OF A NEW TREND - PREVENTIVE MEDICINE
Tsivtsivadze T.I., Chigogidze N.Sh., Kldiashvili
R.Sh., Chigogidze E.N., Skhiladze R.À., Gabrichidze
Zh.Sh. and Sulakvelidze G.A.
Research Center of Biologically Active Substances of the
Georgian Technical University
The article deals with a new trend - preventive
medicine. Prevention of such serious and dangerous diseases as hypertension,
atherosclerosis, heart attack, and apoplexy, which in 70% of cases are the cause
of death, should be carried out as early as possible, even at a young age.
During aging, blood vessels inevitably accumulate unhealthy symptoms. The
concept of treatment without drugs on the basis of moderate consumption of aged Georgian
wines made of unique endemic grape varieties was developed. The data on the chemical composition of Georgian
wines and their unique bioactive components are considered. The prospects for
therapeutic and prophylactic use of Georgian wines in preventive medicine, reducing
the risk of serious diseases and their further development are discussed. As a
result of our long-term and wide-ranging research, a universal complex
non-alcoholic wine concentrate from Georgian red wines was elaborated. It is a source
of natural antioxidants - bioflavonoids, polyphenolic
compounds, stilbene, terpenoids,
plant steroids, lactones, etc. Furthermore, it comprises fructosyl
derivatives of amino acids and fructo-peptids that provide a stimulating effect on
progenitor cells of the spinal cord, which is especially important in cancer
radiotherapy. The concentrate is suitable for intensive children's nutrition as
it contains no alcohol. The product is very useful for athletes during their
physical training for a competition, because it is a natural stimulator and an energy
tonic. The protective action on blood vessels is a distinctive peculiarity of
natural red wines, which is expressed strongly by the Georgian varieties Saperavi, Dzvelshavi, Tavkveri, Ojaleshi, Akhasheni, Mukuzani, Teliani, Napareuli etc.
Keywords: preventive medicine, Georgian
wines, bioactive substances, wine concentrate.
SUMMARY
NANOSILVER
IN RED WINE TECHNOLOGY AND THE INHIBITION OF OXIDATION OF PHENOLIC COMPOUNDS
Ebelashvili N.V., Shubladze L.P., Shatirishvili Sh.I., Bibiluri N.Sh., Okruashvili D.Sh.
and Mdinaradze M.B.
Georgian Agrarian University, Institute of Viticulture
and Oenology
The content of cathechols,
flavonols, phenolcarbonic
acids and vanilin aldehyde was determined in red wine
at defferent stages of the production process by
high-performance liquid chromatography (HPLC). It was revealed that, after
apple-milk fermentation and removal of the wine material from the residue,
during storage the inhibition of oxidation of phenolic compounds was more
efficient when the wine
material had been treated with 0.6 mg/dm3 nanosilver.
Keywords: red wine, phenolc
compounds, nanosilver.
SUMMARY
INVESTIGATION OF THE IMPACT OF THE APPLICATION OF
NANOSTRUCTURED SILVER DURING THE PROCESS OF DRAWING OVER THE WHITE WINE
MATERIAL ON WINE CHARACTERISTICS
Ebelashvili N.V., Melikishvili M.V.
And Mikadze G.V.
Georgian Agrarian University, Institute of
Viticulture and Oenology
Cadifite and different doses of
nanostructured silver were used during the process of drawing over the wine
material produced from the Chinuri grape cultivar.
Two months later the following parameters were determined in the wine material:
basic conditional characteristics, total content of phenolic compounds, and
concentrations of tartaric, malic and lactic acids. It was revealed that,
during the process of drawing over the wine material, 50 mg/l cadifite (sulfur dioxide) and 0.6 mg/l had identical effect
on the characteristics of the wine material.
Keywords: wine material, drawing over,
nanostructured silver, characteristics.
SUMMARY
SELECTION OF CHROMATOGRAPHIC
COLUMNS AND DETERMINATION OF THE OPERATIONAL CHARACTERISTICS FOR DETECTION OF
TERPENE COMPOUNDS IN GRAPES AND WINE
Khositashvili M.L., Okropiridze Z.M. and Kituashvili T.Z.
Georgian Agrarian University, Institute of Viticulture and Oenology
Jakob Gogebashvili State University, Telavi
The article deals with the
selection of gas-liquid chromatographic columns and the determination of the operational
characteristics for quantitative and qualitative analyses of terpene compounds in grapes and wine.
Keywords:
terpenes, gas-liquid chromatography,
chromatographic column, grapes, wine.
SUMMARY
IDENTIFICATION OF VOLATILE COMPONENTS OF GRAPES
AND WINE AND THEIR QUANTITATIVE CALCULATION
Khositashvili M.L., Okropiridze Z.M.
and Kituashvili T.Z.
Institute of Viticulture and
Oenology, Georgian Agrarian University
Jakob Gogebashvili
State University, Telavi
The article deals with the identification of
volatile substances in grapes and wine and their quantitative determination by
gas-liquid chromatography. The Kovach index was determined for some of volatile
aromatic components.
Keywords: volatile substances, gas-liquid chromatography, grapes, wine.
SUMMARY
ON THE ISSUE OF IMPROVING THE SOIL
FERTILITY AND RAISING THE LEVEL OF CROP YIELD ON LAND-POOR FARMS
Purtskhvanidze G.N., Chabukiani R.R.,
Uriadmkopeli T.D., Kheladze
G.V. and Purtseladze I.G.
Akaki Tsereteli
State University, Kutaisi
The article deals with the problem of an adverse
effect of the tractor undercarriage on soil fertility. The ways of reducing
this effect are discussed. The authors designed and made in metal a vehicle
bridge unit with separate drives for self-rolling and executing the
technological operations, for lifting and lowering the work members, movement
of working vehicles after halt of the bridge mechanism with the perpendicular
direction of rolling.
Keywords: tractor undercarriage, bridge
mechanism, self-rolling, soil fertility, crop yield.
SUMMARY
CELL TECHNOLOGY AND TISSUE ENGINEERING: INDUCED PLURIPOTENTIAL STEM
CELLS
Jinjolia Sh.R.
The article deals with the issues of cell
technology and tissue engineering. It is shown that reprogramming of induced pluripotential stem cells is a promising trend in tissue
engineering.
Keywords: stem cells, induced pluripotential cells, tissue engineering.
SUMMARY
CELL TECHNOLOGY: STEM CELLS.
PROGRESS AND PROSPECTS
Jinjolia Sh.R.
The article represents a brief overview of the
progress in the field of development and introduction of the methods of
production of stem cells in experimental biology, which opens up new vista for
development of essentially new efficient biomedical technologies. The discovery
of stem cells is the third most important achievement in biology after decoding
of the DNA helix and the human genome program.
Keywords: stem cells, experimental biology, biomedical
technology.
SUMMARY
BASIC TECHNICAL CHARACTERISTICS OF
THE CRUISE LINER
Putkaridze N.M.
The cruise is not simply a type of trips, but
also the industry uniting the companies engaged in cruise business, ship
building, delivery of goods and services for cruise ships and their passengers,
promotion and realization of the cruise product etc. For cruise liners, the
following characteristics are important: dimensions and draught. This set of
parameters determines cruise routes, as not any port can receive a liner more
than 300 m in length, 30 m in width and of draught more than 8 m. For providing
the maximum comfort for passengers and low fuel consumption, the liners usually
sail at the velocity of no more than 15-20 knots.
Keywords: cruise liner, technical
characteristics.
SUMMARY
INVESTIGATION OF THE POSSIBILITIES FOR
REINFORCEMENT OF BUILDING STRUCTURES WITH TEXTILES FROM UNTWISTED YARN
Moseshvili T.V. and Meparishvili
N.M.
The article deals with the application of textile
reinforcement of various types to concrete building structures. The advantages
of the textile reinforcement in light and thin structures over the metallic one
are demonstrated. The structure of knitted fabrics from untwisted yarn and the
theoretical aspects of their use as reinforcement in concrete structures are
discussed.
Keywords: textiles, untwisted
yarn, reinforcement, building
structure.
SUMMARY
ON THE
PROPHYLACTIC AND ECONOMIC EFFICIENCY OF THE ANTIHYPODYNAMIC MASSAGER
Purtskhvanidze G.N., Chabukiani R.R.
and Kharatishvili A.G.
Akaki Tsereteli
State University, Kutaisi
The effect of massage on the human organism is
discussed. Massage is a complex physiological process, involving many systems
and organs, the nervous system playing the primary role. The offered antihypodynamic massager is a visual object, which the
driver’s conscious perceives. By mental interpretation and the energy generated
by the subconscious, the recovery of the diseased organ takes place. Just this
is the manifestation of the medical-prophylactic and economic efficiency of the
massager proposed.
Keywords: massager, hypodynamia,
prophylactic efficacy, economic efficiency.
.
SUMMARY
THE DEVELOPMENT OF THE CONCEPT OF THE DUMMY WITH NON-STATISTICAL
ELEMENTS OF THE SURFACE
Datuashvili M.V. and Charkviani
I.D.
Akaki Tsereteli
State University, Kutaisi
The article deals with the problems of the use of
dummies in the process of manufacturing the garments for individual production.
The process of fitting is a rather difficult and tedious process for both the manufacturer
and the consumer. Analyzing the results of the study, the task was to design a
universal dummy with non-statistical elements of the surface and the motion segments
that can take on the shapes identical to those of the object, and successfully replace
him/her in the
process of making custom-tailored clothes.
Keywords: clothes, tailoring, dummy,
non-statistical elements.