ON
THE SOLVABILITY OF TWO BASIC THREE-DIMENSIONAL DYNAMIC PROBLEMS OF THE
HEMITROPIC THEORY OF ELASTICITY
Bezhuashvili
Yu.A. and Rukhadze R.V.
Abstract. Two
basic three-dimensional dynamic problems are considered for a hemitropic
micropolar medium which is bounded by closed surfaces. Using the Fourier
method, the theorem on the existence and the uniqueness of the classical
solution is proved.
Keywords: three-dimensional
dynamic problems, hemitropic micropolar medium, classical solution, Fourier
method.
SIMULATION OF SOCIAL AND ECONOMIC
DEVELOPMENT OF THE
Khartishvili M.P. and Macharadze M.G.
The
article deals with the possibilities for application of simulation to the
realization of the complex analysis of a complex urban system taking into
consideration a set of factors and the elements of uncertainty and to the
prediction of social and economic development of the city.
Keywords: city,
social and economic development, simulation.
THE PROBLEMS OF SIMULATION OF A COMPLEX SOCIO-ECONOMIC
SYSTEM
Khartishvili M.P. and Macharadze M.G.
The article represents the
analysis of the problems of housing and communal services as the object of management.
The program documents on the branch reformation and the methods of decision-making, which allow to
generate a complex of actions and to
estimate their cost and expected efficiency, were generalized.
Keywords: housing and communal service, simulation, reformation,
decicion-making, estimated efficiency.
A
MODEL OF DEFINITION OF THE PRICES OF BASIC ASSETS
Magraqvelidze
D.G.
The
article deals with the theory of the capital market for definition of the
prices of basic assets. A known model of definition of the cost of assets,
namely the model of definition of the prices of basic assets (CAMP) is in the
center of attention. The CAMP
considers for the influence only of one factor – the behavior of the market as
a whole on the stock profitability. This influence is described by a market
model or a single-index model. Graphically
the market model is represented in the form of a so - called characteristic
straight line, approximating the "behavior" of the points presented
by the profitability in the pairs (the asset and the market). The described
model of definition of the prices of basic assets rate belongs to equilibrium
models. In other words, at the set assumptions on the behavior of investors and
capital markets, they define the
theoretical or equilibrium cost of the assets.
Keywords: market
model, basic assets, coefficient of determination,
single-index model,
homogeneous expectations.
the Problem of
portfolio choice
Magraqvelidze
D.G.
Technical
University of Georgia
Abstract. The
article deals with the optimal portfolio problem. The agent’s choice is
associated with random variables which represent the return of assets sold on
the market in the time t=0. The return
of the assets is given in terms of the dividend issued in t=1 which is
divided by the asset price at t=0. In the article the risk averse agent is
treated as the increasing function of profitability. The sufficient condition
is w*
, i.e. the risk
premium is not positive for at least one asset. If the function of
profitability is the decreasing relative risk aversion (DARA), the risky asset
is normal, and the agent’s demand is an increasing function of wealth. If the
function of profitability is the increasing relative risk aversion (IARA), the
risky asset is of low efficiency, and the agent’s demand is a decreasing
function of wealth. Eventually, the DARA function of profitability seems to be
the most probable hypothesis for most agents in economy.
Keywords: optimal portfolio, DARA, IARA, utility function, risk averse agent.
On the Optimization of SQL Queries
Kobiashvili
A.A. and Kutateladze K.G.
Technical
University of Georgia
Abstract.
An approach to the optimization of query blocks is presented. Two cases of
optimization are considered. The two methods: the nested loop method and the
sort/merge method for optimizing the joins are discussed. The statistics of the
optimization process estimate is given.
Keywords:
database, optimization, nested loop, sort/merge method.
rudder and the propeller
Sikharulidze
L.I.
Batumi State
Maritime Academy
The
paper deals with the development of a basic mathematical model of ship movement
which is controlled with the rudder and the
propeller on the basis of Matlab Simulink mathematical modeling system. The
priority of the presented model is the possibility of model change by means of
conversion of its separate components.
kaywords:
ship, movement, mathematical model. Matlab Simulink, rudder, propeller, dynamic
model.
SIMULATION OF
THE PROCESS OF LIGHTING OF THE LOW-TEMPERATURE FLUIDIZED BED AND THE CONTROL
ALGORITHM
Kevkhishvili N.A.,
Invia N.S. and Chubinidze Z.R.
Technical
University of Georgia
Proportioned
solid fuel feed
in the lighting mode and the corresponding selection of the temperature of
switching-off of the lighting burner allow increasing the fluidized bed
temperature smoothly to the design value. The thermal lag of temperature
sensors affects the operation of the automatic control system. The decrease in
the thermal lag of the temperature sensors is achieved by the corresponding
selection of protective covers.
Keywords:
solid fuel, fluidized bed, simulation, control
algorithm.
ESTIMATION OF THE STEAMING TIME IN CASE
OF ENGINE ROOM FLOODING
Gomidze Z. A.
and Sikharulidze L.I.
Batumi State
Maritime Academy
The
paper deals with the issues of constructive elements which provide
unsinkability. Special attention is paid to operative information, emergency
floatability and stability. The problem of determination of the flooding time
is discussed.
Keywords: ship,
unsinkability, operative information, emergency stability.
THE DETERMINATION OF THE SHIP PATH IN
REVERSE BY CALCULATION
Gomidze Z. A.
and Sikharulidze L.I.
The
presented paper deals with the issues of the hull load distribution which is
caused by the reverse stream in the case of a controllable pitch propeller and
a fixed-pitch propeller.
Keywords:
ship
path, reverse, propulsive-steering
gear, stern.
The tribological efficiency
and the mechanism of action of
nano-porous composition-baseD brake lining materials
Kutelia E.R., Gventsadze D.I., Eristavi B.G.,
Maisuradze N.I., Tsurtsumia O.O.,
Gventsadze L.D,
Olofsson U., Wahlström J. and Olander L.
R. Dvali Institute of Machine Mechanics,
The Royal
Abstract. Based on the comparative analysis of the experimental
values determined for the mean concentration of airborne wear particles (C DustTrac),
the mass loss of the disc (ΔMdisc), the mean coefficient of
friction (μ) and the pin temperature (T pin), which where
measured under the same conditions for three novel nano-porous and two
conventional brake lining materials while friction with the grey cast iron disc,
considerably high tribological efficiency of the novel nano-porous
compositions in comparison with the
conventional brake lining materials (from the EU and USA markets) was revealed.
By the methods of SEM and AES interface phenomena between brake pad
materials based on nano-porous
composition and brake disc surfaces worn in the tribo-pair were studied, and
there was revealed an advantageous role of the so-called “third phase” formed
as a result of friction in the form of a sticking “film” of the nano-powder on
the both tribo-pair surfaces as the flowing component between the disc and a
nano-porous lining material. The explanation is given on the mechanism of
operation of the brake lining material based on the porous composition and its
tribological efficiency based on the “triple-phase” tribo-pair model.
Keywords: brake pad lining, friction, wear, disk, pin,
nano-porous composition, scuffing, scratching, third phase, SEM, AES
THE
WAY OF MEASUREMENT OF THE GROUNDING ROD
RESISTANCE AND THE DEVICE FOR ITS REALIZATION
Karasiev
B.V., Tugushi M.A. and Loria M.D.
The problems of
electrosafety of networks with the solidly grounded neutral are discussed. A device
for measuring the grounding resistance over the basic range (0.1-10 Ohm) is
proposed. The proposed device (a bridge circuit) allows determining the
resistance of the grounding rod with the desired accuracy.
Keywords: electrosafety, solidly grounded neutral, grounding rod, bridge
circuit.
CRYOSORPTION PUMP NKS-0.5D
WITH SOLID NITROGEN AS A COOLING AGENT
Dgebuadze G.N., Bendeliani
B.G., Bokuchava L.D., Mumladze M.G., Mumladze G.N.,
Mumladze N.A., Sordia T.D.,
Tsakadze L.M., Chanturidze V.G. and Chochia M.R.
I.Vekua Sukhumi Institute of
Physics and Technology
The article deals with a physical-mathematical model of the process
of cryosorption pumping. It involves
modeling of heat-exchange processes in heat-removal elements and adsorption
cavities, of mass-exchange processes in adsorbent grains and molecular flows in
pump channels. Based on the computation performed, cryosorption pump NKS-0.5D
with solid nitrogen as a cooling agent was designed. Basic specifications of
the pump are discussed.
Keywords: cryosorption pump, cryocondenser, adsorption cavity, nitrogen
vessel, heat-removal elements, heat-protective elements.
THE CIRCUIT DESIGN FOR REDUCTION OF ERRORS OF DIFFERENTIAL
TRANSDUCERS
Hazarkhanov
A.T. and Neymatli V.A.
National Aviation Academy,
Baku, Azerbaijan
Article
is devoted to the problems of reduction of static errors of differential
transducers. The versions of bridge
circuits of connections for differential transducers are considered. The
equations for output voltage for counterbalanced and unbalanced states under
the conditions of changes in the errors were derived. It was revealed that, for
improving the accuracy of the differential transducer with the bridge circuit
in the presence of errors in the resistance of shoulders, and also in the
presence of errors in the resistance of
sensing elements, it is expedient to apply the compensation circuit identical
to the bridge circuit of the differential transducer with the counterbalanced
state. As a result of comparison of the output voltage of both bridges, the
zero output voltage of the counterbalanced bridge is provided, and the accuracy
of measurements improves.
Keywords: differential transducer, bridge circuit, counterbalanced
state, unbalanced states, linearly changing error, output voltage, compensation
circuit.
THE DEPENDENCE
OF THE CONTACT RESISTANCE OF MICROWELDING ON THE HEAD FORCE
Sulamanidze
A.K., Neverov A.P., Metreveli A.B. and Vatitadze G.Z.
Technical
University of Georgia
The article
presents the results of investigation of the variations in the contact
resistance of microwelding over the range of head force from 1 to 50 newtons.
From the experimental data, they chose several functional ratios between the
contact resistance and the head force. The values of relevant coefficients were
calculated by the method of least squares. The correlation between the values
calculated by the formula derived and the experimental ones was within the
admissible limits. Thus, there was determined the character of variations of
the contact resistance for the head force less than 50 newtons.
Keywords:
microwelding,
resistance, head, voltage, circle.
THE
CONCENTRATION OF TOXIC GASES WHEN EXPLODING THE WARHEADS OF UTILIZED AMMUNITION
Khomeriki
S.K., Mikhelson R.V., Kukuladze N.D. and Supatashvili D.G.
LEPL
Grigol Tsulukidze Mining Institute
Georgian
Military Research-Engineering Center ,,Delta’’
It was revealed
that, in the center of explosion of pyroxylin gunpowder 9/7, ballistic
gunpowder NDT-3-19/1 and rocket fuel
«RST-4Ê, in 3 minutes after the end of detonation, the concentration of toxic
gases in the atmosphere was tens thousand times higher than the maximum
permissible concentration. At explosion of mixtures of these gunpowders with
ammonia saltpeter in the proportion providing the zero oxygen balance, the
concentration of CO decreased by a factor of
4-80, whereas the concentration of NO2 – by a factor of 2-50.
Keywords:
explosives,
utilized ammunition, ballistite powder, pyroxylin powder, toxic gases, nitrate
oxides.
THE EFFICIENCY OF APPLICATION OF UTILIZED PROPELLANT TO
CHAMBER CHARGES
Khomeriki S.K., Kukuladze N.D., Mikhelson R.V., Khomeriki
D.G., Apriashvili A.G. and Kuchukhidze
Z.K.
LEPL Grigol Tsulukidze Mining Institute
By the examples of
the Dologan Andesite, Kinkishi Andesite-Basalt and Akhalsheni Tuff-Breccia Open
Cuts, the high efficiency and seismic safety of application of utilized solid
propellant to destruction of hard rocks by exploding the chamber charges is
demonstrated.
Keywords: utilized propellant, industrial explosion, efficiency,
destruction of rocks, seismic waves.
THE THECHNOLOGY
OF DIRECT COMBUSTION OF BIOFUEL
Arabidze N.T.
and Grigalashvili A.Sh.
Technical
University of Georgia
Direct
combustion of biofuel is one of the oldest and most developed thechnologies.
The article deals with the analysis of the advantages and drawbacks of direct
combustion of biofuel executed by different methods.
Keywords:
biofuel,
gasification, pyrolysis, direct combustion.
Radiant entropy of the Biofield
Kadagishvili
L.G.
V.
Chavchanidze Institute of Cybernetics,Technical University of Georgia
Engineering
Academy of Georgia
Abstract. The article
deals with the energy levels of the biological field, which are subject to the
Laws of Thermodynamics. It is demonstrated that one kind of energy is
transformed into other kind of energy, while the total quantity of energy
remains the same. Respiratory experiments proved that the living being is
inevitably subject to the Law of Eternal Energy. As for the change in the
energy envisaged by the Second Law of Thermodynamics, implying that one kind of
energy is transformed into other kind of energy, the Law defines the relation
between the quantities of free and bound energy in the system. The energy
change is characterized by the change of entropy. The biological field of a
healthy man is closed and his body does not irradiate energy. If the man’s
biological field irradiates the energy, it means that the equilibrium state of
some cell of the body is disturbed. In such a case, the body irradiates the
energy.
Keywords: biological
field, energy, entropy, laws of thermodynamics.
THE
EFFECT OF THE HEIGHTS OF SUSPE NDED AND PROTECTIVE LAYERS ON THE
EFFICIENCY OF CLARIFIER OPERATION
Zalikashvili Z.O. and Zalikashvili G.O.
The
paper deals with height of water clarifiers with a suspended layer. The effect
of the heights of suspended and protective layers on the efficiency of
operation of clarifiers was studied. The recommendations on controlling the
clarifier operation were worked out. It is shown that the restoration of the
suspended layer in the given time could be achieved by automatic control of the
concentration of activated sludge in the water to be clarified. The permissible
decrease in the height of the suspended layer could be provided by permissible
decreasing the water flow fed to the clarifiers. The permissible decrease in
the water flow, in its turn, must be considered for at the stage of designing.
At the concentration of suspended substances in the clarified water equal
to200mg/l, the optimal height of the suspended layer is equal to 1.5 m and of
the protective layer – to 1.3 m.
Keywords: water clarifier, suspended layer, protective
layer, height of the layer, efficiency.
INVESTIGATION
OF CHEMICAL AND THERMAL STABILITY OF ION-EXCHANGE MEMBRANES IN THE MINE WATER
OF COPPER-CONTAINING ORES
Kurtskhalia
Ts.S., Enukidze N.E., Simonia Z.Sh., Nadirashvili M.V., Chkheidze N.V., Chkhubianishvili
N.G., Makhashvili K.A. and Kavtaradze M.L.
Technical
University of Georgia
The chemical and
thermal stability of ion-exchange membranes MA-40 and MK-40 in the mining water
of copper-containing ores was studied. It was revealed that the chemical
stability of ion-exchange membranes under stationary conditions does not differ
from that under electrodialysis. That is why it is recommended to perform
preliminary testing of ion-exchange membranes in the above-mentioned medium
under stationary conditions.
Keywords: copper-containing
ores, mine water, ion-exchange membranes, ion-exchange membranes, thermal stability.
STUDY OF THE
INTERACTION AT THE GLASS ENAMEL - STEEL INTERFACE
Berdzenishvili
I.G. and Siradze M.G.
Abstract.
The paper deals with the
analysis of physical-chemical processes at the phase boundary between the
single-layer coating and the steel substrate. It is shown that, in the result
of heterogeneous interaction at the coufact zone, a transition layer, being a
characteristic feature of adhesion, is formed.
Keywords:
enamel, melt, steel,
interface, transition layer, adhesion.
PHOTOCHROMIC LIQUID-CRYSTAL POLYMERIC SENSORY MATERIALS
Japaridze K.G., Devadze L.V., Maisuradze J.P., Zurabishvili Ts.I.,
Petriashvili G.Sh.,
Sepashvili N.O., Mzhavanadze I.A., Akhobadze Sh.A. and Gugava M.T.
V. Chavchanidze Institute of Cybernetics, Technical University of Georgia
Abstract. The work deals with novel photochromic liquid-crystal (LC)
polymeric films consisting of the nematic-chiral LC matrix doped with
spiropyrans. The obtained films are characterized by heat indicator properties
and efficient photosensitivity. They could be used as sensory materials for
designing of dosimeters of a new type.
Keywords: polymeric films, nematic-chiral liquid crystals,
spiropyrans, sensory material.
the Electronic Structure and Chemical Bond in TlInSe2
Asadov Kh.A.,
Kerimov U.A. and Aliyev V.A.
Abstract.
Taking into
consideration the peculiarities of the structure of tetragonal body-centered
TlInSe2 monocrystals, the authors advance the suppositions about
high anisotropy of electric conductivity, considerable mobility of thallium
ions and their tendency to ordering. For verification of these suppositions,
electronic and ionic conductivity was studied. The conductivity by Tl+
and TlInSe2 ions and unusual pseudoinductive, stepwise and
self-oscillatory relaxation processes in them were revealed. The proportion of
the ionic conductivity of the crystal was assessed by the EMF method. The
pseudoinductive character of the low-frequency impedance and current relaxation
in the crystals under study was explained by the fact that the redistribution
of thallium along the sample in the result of its electron transfer caused the
formation of electronic defects with shallow levels of internode atoms nearby
the cathode and of the vacancies nearby the anode.
Keywords: thallium, tetragonal body-centered crystals,
electronic structure, chemical bond, electric conductivity
Nanostructural
Study of the
[Cu3(μ-3,5-dnb)6(OHCH3)2]·H2O Compound
Miminoshvili E.B., Kutelia
E.R., Miminoshvili K. E., Dzigrashvili T.A. and
Beridze L.A.
Technical University of
Georgia
The structural study of the C44H28N12O39Cu3
compound (P-1, à = 11.4960(7); b =
11.9684(7); c =
12.6639(8)Å; a = 73.247(2); β=71.760(1); g = 62.185(1)°, V = 1442.53(15)Å3; T = 153(2)K, Z = 1; R(F) = 0,043;
Dcalc. = 1,77g/cm3, m(MoÊα) = 1,215mm-1) was perfomed.
The structural formula of the compound was determined as [Cu3(μ-3,5-dnb)6(OHCH3)2]·H2O. The structure of the
investigated compound belongs to the type of
molecular-polymeric structures.
Keywords: X-ray diffraction analysis, complex
compounds, transition metals, dinitrobenzoic acid, nanostructure.
THE
KINETICS OF RECOMBINATION OF RADICALS IN
LIQUID POLYMERS
Kokrashvili
T.A., Padiurashvili V.N., Cirekidze M.A., Kolomikovi S.G. and Managadze A.S.
The transition from
conventional solvents to much more viscous polymer systems is not always
accompanied by an increase in the cellular
effect. If a non-viscous liquid plasticizer is present in the system, the
opposite situation is more likely to occur: low cellular effects owing to fast
yield of the radicals of radical pairs from the cells with subsequent rapid
recombination in the volume.
Keywords: triplet state,
radical pairs, intercombination transitions, magnetic effects.
Kinetics of
formation and destruction of TRIPLET TRIPLEXES
Kokrashvili T.A., Padiurashvili V.N., Cirekidze M.A., Kolomikovi
S.G. and Managadze A.S.
Technical University of Georgia
It was found that quenching of the triplet state of chloranil with
naphthalene and anthracene in low-polarity solvents resulted in the formation
of the triplet exciplexes of two types -
those involving the radical cation of the donor and the ones involving the
radical cation of the donor dimer. The addition of the second donor molecule to
the triplet exciplex leads to significant changes in its spectral kinetic
characteristics.
Keywords:
triplet state, radical pairs, intercombination transitions.
SYNTHESES
OF NOVEL 24-MEMBERED MACROCYCLIC POLYAZOMETHINES
Topuria
Kh.D., Obolashvili N.Z. and Geliashvili Z.E.
A method of preparative synthesis was developed and novel
24-membered macrocyclic azomethines were synthesized. Their chemical and
physical properties were investigated.
Keywords: polyazomethine,
macrocycle, luminescence, synthesis.
Mathematical-chemical
Investigation of Halides of Alkali Metals within the Scope of ANB-matrices
Method
Rusia M.Sh., Giorgadze
K.P. and Gverdtsiteli M.I.
Iv.
The halides of alkali metals were
studied within the scope of ANB-matrices method. Five correlation equations of
the type „structure-properties” were derived and investigated. The correlations
were good.
Keywords: alkali metals, halides, ANB-matrix,
correlation equations.
Mathematical-Chemical
Investigation of Boron Halides
Chachava G. N., Giorgadze K.P. and Gverdtsiteli M.I.
Iv.
Javakhishvili Tbilisi state University
Boron halides were studied within the scope
of the ANB-matrices
method. Two correlation equations of the
type ,,structure-properties” were derived and investigated. The calculations
showed that the correlations were good.
Keywords: boron halides,
ANB-matrix, mathematical-chemical investigation.
Mathematical-chemical
Investigation of Perchlorates of alkali
metals
Chachava
G.N., Kvernadze M.S., Gverdtsiteli M.I.
Iv.
Javakhishvili Tbilisi State University
Perchlorates of alkali metals were studied within the scope
of the pseudo-ANB-matrices method. Three correlation equations of the type
,,structure properties” were derived and investigated. The calculations
show, that correlations – according
Jaffe’s criterion – are satisfactory.
Keywords: perchlorates, alkali metals,
pseudo-ANB-matrix, correlation equations.
Application of Ion-Selective Electrodes
Dolidze V.A. and
Arabidze I.R.
Technical
University of Georgia
The paper deals
with electrochemical analytical methods, in particular with ionometry. The
emphasis is made on the application of various ion-selective electrodes.
Keywords: ionometry,
ion-selective electrodes, ion activity.
ENVIRONMENTAL
PROTECTION AGAINST MINERAL FERTULIZER POLLUTION
Papava G.Sh., Gurgenishvili M.B., Chitrekashvili
I.A., Dokhturishvili N.S., Maisuradze N.A., Khotenashvili N.Z. and Tabukashvili
Z.Sh.
P.Melikishvili
Institute of Physical and Organic Chemistry, Iv. Javakhishvili Tbilisi State
University
Abstract. A
method of production of nitrogenous fertilizers of a prolonged action with the
aim of environmental protection was developed. Such fertilizers are highly
efficient, they facilitate taking up of the nutrients by plants, hinder their
washing out of the soil and protect the environment from pollution. The
obtained nitrogenous fertilizer of a new type – cross-linked carbamide holds certain advantages over
unstructurized carbamide. The application of such a fertilizer allows achieving
savings of 50%.
Keywords: nitrogenous fertilizers, cross-linked carbamide, environmental protection.
CHROMATOGRAPHIC ANALYSIS OF THE CHEMICAL
CONTENT OF AROMATIZED WINE AND
CORRESPONDING ALCOHOL
Bedianidze L.M.
A
plant ingredient was entered in the fermentation process of European-type wine.
After fermentation, the wine was cleaned and distilled. As a result, brandy alcohol was obtained. The
content of aromatic substances was studied in both wine and brandy alcohol was
studied by the method of gas chromatography. It was revealed that, in the
result of distillation of the aromatized wine, 5 substances from 13 substances
found in the wine transferred to the alcohol. The obtained wine material had
the almond taste and the flower aroma, which was due to the added plant
ingredient. The brandy alcohol obtained in the result of distillation of the
wine material was a colorless liquid with the pleasant aroma of quince and
vanilla. It seems that the strong pleasant smell of propanol suppressed the
unpleasant sharp smell and taste characteristic of isobutanol and isoamyl. The
obtained alcohol represents the best raw material for production of a new brand
of brandy.
Keywords: wine,
alcohol, brandy, chemical content, gas
chromatography.
PHENOLS IN WINE
AND THEIR IMPORTANCE
Dakishvili G.T.,
Javakhishvili M.L. and Buishvili G.T.
Jakob Gogebashvili Telavi State University
Abstract. The research results showed that the
Kakhetian dry wine produced from Rkatsiteli grapes is rich in antioxidants,
which is of great importance for human health. Thus, it can be inferred
that the use of definite doses of wine
would favor prolonging the human life.
Keywords: phenols, wine, human health.
DEVELOPMENT OF THE METHOD OF REDUCTION
OF THE AMOUNT OF ISOAMYL ALCOHOL IN WINE MATERIALS
Matiashvili
Sh.I., Shildelashvili I.I., Gagolishvili M.Sh. and Megrelishvili T.D.
Jakob Gogebashvili Telavi State
University
The
paper deals with the control of alcoholic fermentation under pressure with
controlling the temperature by means of pressure under common conditions
without expensive equipment, and water cooling and heating. For this purpose,
we equipped reservoirs with manometers for measuring pressure and for controlling
the temperature with the outer tap of CO2. This gives us an
opportunity of producing high-quality wine materials. Besides, controlling the
fermentation under pressure allows us to obtain wine materials with low
volatile acidity.
Keywords:
wine materials, alcoholic fermentation, isoamyl alcohol, temperature, pressure,
ethyl alcohol.
THE
STUDY ON THE NITROGEN-CONTAINING COMPOUNDS IN
WILD FRUIT AND BERRIES WITH THE AIM OF THEIR INDUSTRIAL APPLICATION
Mamardashvili
N.G., Guliashvili M.A., Kandelaki N.D., Gigilashvili Sh.K., Mujiri L.A. and
Khositashvili M.L.
Abstract. Wild
fruit and berries growing in
Keywords: wild
berries, wild Fruit,extracts, total nitrogen, amino nitrogen, proteins,
peptides.
CONTROLLABLE FERMENTATION
Matiashvili Sh.I., Shildelashvili I.I.,
Gagolishvili M.Sh. and Megrelishvili T.D.
Jakob Gogebashvili Telavi State
University
Under
controllable fermentation are meant the methods which allow a wine-maker to interfere in the process of
fermentation and control it. We have
elaborated a production process which allows us to obtain wine materials of
high quality. The technological scheme is as follows: grapes Rkatsiteli 
crusher-stemmer drainage-press gravity feed + I
fraction of press, cold settling at -30C
for 18-24 hours, removal of the sediment, the use of yeast adapted with cold,
controlled alcoholic fermentation under press at 17-180C. At the
moment of vigorous fermentation, the
pressure is removed and the fermentation becomes still. This happens
under common conditions without expensive equipment, water cooling and heating;
the temperature is controlled by means of pressure.
Keywords: wine
materials, alcoholic fermentation, higher alcohols, temperature, pressure,
ethyl alcohol.
The place and the part of
Tsivtsivadze T.I., Chigogidze N.Sh.,
Kldiashvili R.Sh., Skhiladze R.A. and
Sulaqvelidze G.A.
Research Centre of Biologically Active
Compounds, Technical University of Georgia
The
work is devoted to the problem of providing the population with food in the
circumstances of the global climate change. The reserves of high-quality
vegetable cultures as the most promising sources of food raw materials are
discussed. A premium is placed upon the
production of new food products and food additives of high biological
value. It is topical to produce enriched
long-keeping food products, and diabetic and dietary products.
Keywords: food,
feed, food concentrates, production, global climate change.
A NEW KIND OF CANDY MADE OF NONTRADITIONAL RAW
MATERIALS
Minadze N.M., Tavdidishvili D.R . and Pkhakadze M.D.
Akaki Tsereteli State University, Kutaisi
Currently
the basic trend in the confectionery industry is a wide application of natural
ingredients. In this connection, a new kind of candy was developed. This is
brandied cherry-laurel in chocolate, which is characterized by especial flavor.
Keywords: candy, brandied cherry, cherry-laurel, flavor.
THE DYNAMICS AND THE STRUCTURE OF WALKING
Grdzelidze M.G.
The article deals
with the dynamics and the structure of walking, and the response of the
support. The consideration for these parameters when designing the inside shape
and the structure of shoes, and selecting the materials for footwear will make
shoes much more comfortable and will relieve the foot when walking.
Keywords: footwear, walking,
dynamics, structure.