Simplified Method for derivation of THE dispersion
equations for angular symmetric modes of THE circular multilayer
magnetodielectric waveguide
Abstract. A simplified method
for derivation of dispersion equations for finding the propagation constants
for angular symmetric modes of the circular multilayer magnetodielectric
waveguide is presented. The analysis is based on the use of the transmission
matrix of the cylindrical layer (TMCL), associating the tangential field
components of the angular symmetric modes of the structure at the cylindrical
boundaries of the layer. The efficiency of the method is due to the unified
notation of the dispersion equation, which includes the product of a few TMPL
according to the number of layers, which are unimodular. The recurrent notation of the dispersion
equations is also given.
Keywords: angular
symmetric modes, circular multilayer magnetodielectric waveguide, dispersion
equation, transmission matrix of cylindrical layer (TMCL).
A
PROGRAM FOR COMPUTATION OF THE NORMALIZED PATTERN OF THE EMITTER
Zurabishvili
V.I. and Svanidze T.S.
For
simplifying the computational process and minimizing the errors, a program for
computation of functions f(α) and f(φ) for the normalized pattern of the emitter on polar and rectangular
coordinates is proposed.
Keywords: emitter, pattern,
functions, computer program.
ON THE ELECTROMAGNETIC COMPATIBILITY OF THE CAGE
DIPOLE
Tabatadze G.D., Kokilashvili L.G. and Chikhladze G.G.
The
problem of electromagnetic compatibility of the cage dipole is considered. The
numerical data are presented. The examples of estimation of the degree of
electromagnetic compatibility of the cage dipole are given.
Keywords: cage dipole,
electromagnetic compatibility.
a new quantitative evaluation method in the quality
control of education process
Milnikova I.A., Prangishvili
A.I. and Shioshvili T.G.
Abstract. A new approach to numerical
evaluation of the quality of educational processess is suggested. To these
ends, new sums of squares, representing two criteria of evaluation of the
academic state of a given group of students were introduced: SSH - the
heterogeneous sum and SSM - the motivation sum. Also the
corresponding heterogeneity and motivation indices were introduced. The system
of criteria (sums of squares and indices) provides a possibility of evaluating
objectively the academic state of the group of students and the quality of the
educational process as a whole, which is very important for both teacher’s
self-appraisal and quality service officers.
Keywords: education, quality
control, quantitative evaluation, heterogeneity, motivation.
m-CENTERED SYSTEMS OF SETS AND THEIR APPLICATIONS
Kvekveskiri
M.M.
The m-centered systems of sets are considered. The
definitions of m-centrality and m-compactness of the systems are given.
Keywords: topology, m-centered systems, m-compactness,
generalization.
HARMONIC DRIVES WITH NONROUND GEARS
Varsimashvili R.Sh. and Kakhiani M.R.
The circuit designs of
single- and two-step harmonic drives with cylindrical and conical gears for
two-mode, three-mode and four-mode cases are presented. The equations for
computation of the transmission ratio and the geometric parameters of gears are
given. Their analysis showed that, if certain centrodes of nonround gears are
selected, at constant rotational speed of the driving shaft, the driven shaft
can carry out rotary motions at variable speed in the direction of rotation of
the driving shaft, in the direction opposite to that of the driving shaft, and
oscillatory and oscillatory-rotary motions with probable delays.
Keywords: harmonic drive, nonround gears,
cylindrical gear, conical gear, transmission ratio, centrode, driving shaft.
HARMONIC VARIABLE-SPEED DRIVES
Varsimashvili R.Sh. and Kakhiani M.R.
Circuit designs of harmonic variable-speed drives
which provide stepless regulation of speed and transmission ratio in a wide
range by using friction and gear modes. The equations for computation of the transmission
ratio and the regulation range are given. The conditions of normal operation of
the proposed designs are described.
Keywords: harmonic drive, variable-speed drive,
friction drive, gear, transmission ratio.
THE STUDY ON THE FORMATION AND DISTRIBUTION OF SLIP
STREAKS AND MICROCRACKS IN AUSTENITIC STEEL AFTER LOW-CYCLIC FATIGUE
DEFORMATION BY SCANNING ELECTRON MICROSCOPY: PART I
Eterashvili T.V.
The distribution of slip streaks and microcracks in
respect to the cycling axis was studied. The locations of formation of both
primary and secondary slip streaks were determined. The correlation between the
slip streaks and the structural components of the steel was revealed. The statistical
curves of distribution of the slip streaks by angles were plotted. The scatter
in slip streaks by angles and its link with both the crystallography and
anisotropy of the material was considered. The possibility of formation of
microcracks on the slip streaks was studied, and it was determined what kind of
slip streaks they could be formed in. Besides the slip streaks, other possible
locations and reasons of microcrack formation after the low-cyclic fatigue
deformation are discussed. It is explained why fewer microcracks are observed
on the sample surface than it could have been expected. It is demonstrated that
the directions of microcracks and the main mezocrack often coincide or are
close to coincidence. It is inferred that the mezocrack in the sample grows
through merging of microcracks.
Keywords: austenite,
slip streak, fatigue, microcrack, scanning election microscopy.
THE
STUDY ON THE FORMATION AND DISTRIBUTION OF SLIP STREAKS AND MICROCRACKS IN
AUSTENITIC STEEL AFTER LOW-CYCLIC FATIGUE DEFORMATION BY USING THE TRANSMISSION
ELECTRON MICROSCOPE: PART II
Eterashvili
T.V.
The
problems of nano- and micromechanics of destruction of thin foils of austenitic
steel after low-cyclic fatigue deformation (LCFD) are discussed. The
investigation was performed by using the transmission electron microscope
(TEM). The proposed technique consists in weathering of thin foil samples,
prepared for the TEM examination, for 1.5-2.0 hours. In this interval of time,
owing to the redistribution and relaxation of peak stresses, local changes in
the sample microstructure, including the formation of microcracks, take place. The
locations of microcrack formation, the interaction among the cracks and their
interaction with the structural elements of the steel and with inclusions were
studied. By the proposed technique, the crystallography of slip streaks,
microcracks and their distribution was studied. It is shown that merging or
stopping of microcracks depends on the angle of their joining within the
microarea of the grain. The effect of the grain anisotropy and the
inhomogeneity of stress distribution on the growth and trajectory of crack
propagation was studied.
Keywords: austenite,
low-cyclic fatigue deformation, slip streaks, microcrack, anisotropy,
transmission electron microscopy.
Decommissioning of the
Research Nuclear Reactor IRT-M Of the ANDRONIKASHVILI Institute of Physics and
designing of a New
Low-Power Nuclear
Facility on Its Basis
Abramidze Sh.P., Katamadze N.M., Kiknadze G.G., Nabakhtiani G.N.,
Razmadze M.T., Rostomashvili Z.I. and Saralidze Z.K.
Andronikashvili
Institute of Physics
Abstract.
The research nuclear reactor
IRT-M of Andronikashvili Institute of Physics was decommissioned by means of
covering the lower part of the reactor tank activated during the long-term
operation of the facility with concrete. The plan of decommissioning foresaw as
well the creation of a new low-power nuclear facility in the remained part of
the reactor tank, which would allow solving the scientific and applied problems
important for
Keywords: nuclear reactor,
decommissioning, low-power nuclear facility.
SUMMARY
ELECTRIC
FURNACES FOR REFINING OF
FERROALLOYS
Kldiashvili V.I., Tsirdava M.O., Melkadze J.G. and
Mebonia
A
technique of computation of electric parameters and technical-economical
indices of electric furnaces for
refining of ferroalloys for production of refined
ferrochrome, non-carbonic ferrochrome, low-carbonaceous ferromanganese, metallic ferromanganese and
other alloys is proposed. It is shown
that the computational technique for the electric furnaces for refining of
ferroalloys is similar to the one used for continuous reduction electric
furnaces.
Keywords: electric
refining furnace, ferroalloys, design technique.
MODELING
OF MOLECULAR FLOWS IN THE CHANNELS OF CRYOSORPTION PUMP NKS-1D
Dgebuadze
G.N., Mumladze M.G., Sordia T.D., Tsakadze L.M. and Chanturidze V.G.
I.
Vekua Sukhumi Institute of Physics and Technology
Modeling of the molecular flow in three-dimensional
structures of cryosorption pump NKS-1D was performed by Monte-Carlo method. The
speed of operation of the cryosorption pump at vapor and gas pumping was
computed. The design values of the coefficients of conductivity, backward
scattering and capture for gases and vapors at the number of tracked molecules
N=106 are given.
Keywords: cryosorption pump, molecular flow, modeling,
Monte-Carlo method.
SUMMARY
ENGINEERING DESIGNS OF THIN-WALLED CRYOGENIC PUMPS
Dgebuadze G.N., Mumladze M.G., Sordia T.D., Tsakadze L.M. and
Chanturidze V.G.
I. Vekua Sukhumi Institute of Physics and Technology
Based on engineering computations,
cryosorption pump NKS-1D was designed. The pump is cylindrical, and it is of
dismountable design. By comparing the physical, mechanical and technological
properties with consideration for operational conditions of the cryosorption
pump, suitable constructional materials and geometric dimensions of the pump
units were specified.
Keywords: cryosorption
pump, design, constructional materials.
THE SUBJECT MATTER OF CYBERNETICS
Lezhava G.G., Kamkamidze I.Sh. and Berikishvili Z.I.
Abstract. The
subject matter of cybernetics as a natural science is discussed. Some notions
are considered. On their basis, the definitions of the cybernetic system and
cybernetics are given.
Keywords: cybernetics,
cybernetic system, form, stability, entropy.
ASSESSMENT OF RISKS IN THE IMPLEMENTATION OF
INVESTMENT PROJECTS BY THE METHOD OF MATHEMATICAL EXPECTATION – THE DISPERSION
Magrakvelidze D.G.
As
investments are one of the basic factors of economy, the estimation of risks of
investment projects is very important. Such estimation will promote the
attraction of investments to the priority fields of economy. For this purpose
we used a method of mathematical expectation – the dispersion, with the help of
which the expected risks are calculated. By using this method, it is possible
to estimate beforehand the risk level in one or other project.
Keywords: investments,
project, risks, assessment, mathematical expectation, dispersion.
ON THE MULTIDIMENSIONAL MODEL OF THE UNIVERSE
Sepiashvili D.P.
The time-space
structure of the Universe is multidimensional. In vacuum, virtual doubles or,
more exactly, multiplicates of real bodies and, cosequently, the information
field controlling the movement of these bodies (particles) could exist. For
describing the multidimensional structure of matter and its complex inner
time-space relations, a new systems approach is necessary. In the process of
development of the Universe, the transition of multiplicates into the past
takes place, their number in the future decreases continuously and the
inhomogeneity and the entropy increase. The available information might be more
and more fragmentary. Hence, the time in the Universe will pass quicker and
quicker. In vacuum, the entropy decreases, whereas the latent energy increases.
In the terminal phase, the repeat genesis of the Universe from vacuum cannot be
ruled out.
Keywords: accelerated expansion of the
Universe, entropy, energy, matter, systems approach, Einstein-Rosen-Podolski
paradox.
HEURISTIC SEARCH FOR PATTERN RECOGNITION
Kadagishvili
L.M.
Abstract.The article deals with the heuristic search of the possibilities of phenomenon
Nazi Khaniashvili. The Phenomenon is distinguished by high intuitive
ability. She manifests uncommon abilities. The nature granted the man the
ability of perception of the world only at definite advance. The study
becomes more complicated when it concerns rare phenomena. Specific abilities of
the eyes and brain of the phenomenon are in conceptual interrelation, that is why the ability of pattern
recognition (prognosis) revealed by her is of great interest.
Keywords: pattern recognition, eye receptors, coded information, phenomenon.
ON THE CHOICE OF A RATIONAL SYSTEM OF WATER ECONOMY OF
THE INDUSTRIAL
Tsikhelashvili Z.I., Khatiuri Kh.N., Verulava G.Y. and
Zakutashvili G.G.
Rational
systems and projects of water economy of the industrial enterprise (allowing
for the development of waste-free production processes, industrial water
recycling with water treatment or without it, and cooling water recycling) are
discussed. The analysis of rational systems is of primary importance when
designing and/or reconstructing the industrial water economy. Such systems and
projects must account for all local conditions determining the advantage of
their employment from the sanitary and economic viewpoints.
Keywords: water
economy, industrial enterprise, rational system, industrial water recycling.
ON THE INVESTIGATION INTO THE EFFICIENCY OF THE
AUTOMATED WATER SUPPLY CONTROL SYSTEM ON THE BASIS OF EXPERTS՚ OPINIONS
Tsikhelashvili Z.I., Khatiuri Kh.N., Verulava G.Y. and
Zakutashvili G.G.
An approach to studying the efficiency of the
automated water supply control system (AWSCS) based on experts՚ opinions is discussed. Delphi’s method of experts’ estimations, which
involves thorough development of the program of quests by using questionnaires,
is proposed to use for justifying and choosing the generalized indices of the efficiency of AWSCS (in contrast to the
traditional method of agreement of experts’ opinions during the discussion).
Keywords: water
supply, automated control system, efficiency, experts’ opinion,
HYDROCHEMICAL RESEARCH OF THE RIVER ARAGVI AND ITS FILTRATES
Sharashidze T.A., Khargelia
R.G., Gverdtsiteli L.V., Andguladze S.N. and Chikhladze B. T.
Alexander Janelidze Geological Institute
Scientific Research Company “Gamma”
Abstract. The River
Aragvi, its influxes and filtrates are the main source for water supply of
Keywords: potable water, hydrochemical analysis, microbiological pollution, heavy
metals, biogenic parameters.
EXPERIMENTAL INVESTIGATIONS OF THE INTERACTION BETWEEN
THE GROUND BASE AND THE ABSOLUTELY FLEXIBLE AND RIGID LOAD
Vacharadze V.V. and Vacharadze I.V.
An
original design of the absolutely flexible die was developed. A set of
experimental field tests of the interaction between the ground base and the
absolutely flexible and rigid dies was performed. The values of deformation of
the clay base surface within the area under loading and outside it as well as
the distribution of contact pressure on the base of the absolutely rigid die
were determined. The diagrams of sedimentary indentations and contact pressure
for different steps of external load were plotted.
Keywords: ground,
base, flexible die, rigid die, influence function.
SOME MAIN DEPOSITS OF NATURAL ZEOLITES: PART II. DEPOSITS
OF SEDIMENTARY ZEOLITES IN THE FORMER
SOVIET
Andronikashvili T.G., Kordzakhia T.N., Eprikashvili
L.G., Pirtskhalava N.V. and Kakhidze N.A.
P. Melikishvili Institute of Physical and Organic
Chemistry
Some
deposits of zeolite-containing sedimentary rocks on the territory of the former
Keywords: natural zeolites,
commercial deposit, sedimentary rocks.
TECHNICAL-ECONOMIC ASSESSMENT OF THE USE OF
BIOFUEL
Arabidze N.T. and Gudiashvili M.N.
The problems of
application of biomass as an energy source instead of fossil fuel are
discussed. The biomass potential in
Keywords:
nontraditional energy resources,
biomass, greenhouse gas emission, reduction of
greenhouse emissions, biomass potential.
Assessment of the Energy
Potential of Farm Animal
Waste Biomass for
Arabidze
G.O., Jishkariani T.S. and Arabidze M.T.
Georgian
Tehcnial Unviersity
Abstract. One
of the prerequisites for
Keywords: biomass, energy
potential, thermal capacity of biomass, equivalent fuel, farm animal waste.
OLD ASPHALT CONCRETE
REGENERATION TECHNOLOGIES IN THE DEVELOPED
COUNTRIES OF THE WORLD
Shishinashvili M.T.,
Jgamaia V.T. and Chubinidze G.A.
Old asphalt concrete
regeneration technologies used in the developed countries of the world are
discussed. The prospects of the use of the materials obtained by these technologies
for production of new asphalt concrete mixes are considered.
Keywords: asphalt concrete, regeneration, prospects.
NEW
PHOTOSENSITIVE LIQUID-CRYSTAL POLYMER FILM
Japaridze
K.G., Zurabishvili Ts.I. and
Petriashvili G.Sh.
A new kind of photosensitive liquid-crystal polymer film consisting of
optically active photochemical and liquid crystal compositions was prepared. The
obtained polymer film can find wide application in different fields of science
and technology such as thermo-, electro- and
photooptics.
Keywords: photosensitivity, liquid crystal, polymer film.
PHOTONIC STRUCTURES BASED ON
INORGANIC OPTICAL FIBER
Chanturia
G.F., Karakozov K.G., Kutaladze L.M., Myasnikov I.M., Tatarashvili R.A. and
Tsaturov A.M.
The physical characteristics of discrete
periodically-ordered photonic structures were investigated. The experimental
samples of a completely optical switch, an inverter of the optical image
contrast and a “photonic lens” were made. A new phenomenon of linear optics –
the effect of optical switching was discovered.
Keywords: photonic structures, optical fiber, optical
switching.
Investigation of the multipole of the 192Os
201.29 keV g-transition
Mikava Z.B., Metskhvarishvili M.R. and Metskhvarishvili R.I.
Iv.
Abstract. By high-resolution (0.04%) magnetic-prism
beta-spectrometer, the internal
conversion electron spectrum of the 192Os 201.29 keV g-transition was measured. the
K-, LI-, LIII- and LIII-conversion lines were separated and
the values of their relative enlargement were measured. The relative and
absolute internal conversion coefficients of this g-transition on the LI-, LII-, LIII-subshells
were determined. It was established that the g-transition is a mixture of electric quadrupole and
magnetic dipole multipoles. The average value of the proportion of the magnetic
dipole admixture was determined as 
.
Keywords: multipole, g-transition,
high-resolution beta-spectrometer, internal conversion coefficient, conversion
lines.
Investigation of the ICE spectrum of the 154
Gd 123.07 keV g-transition
Metskhvarishvili M.R., Mikava Z.B. and
Metskhvarishvili R.I.
Iv.
Abstract. The internal
conversion spectrum of the 154Gd 123.07 keV g-transition
was investigated. It was found that K, LI, LII and LIII
conversion lines have different half-width. The ratios of internal conversation
coefficients were determined experimentally.
Keywords: b- spectrometer,
radioactive source, conversion spectrum, subshell.
THE INTERRELATION BETWEEN CHROMATOGRAPHIC PARAMETERS
OF HOLDING AND THERMODYNAMIC CHARACTERISTICS OF ADSORPTION
Berdzenishvili I.G.
Under
the conditions of equilibrium chromatography, the relation between the
thermodynamic characteristics of adsorption such as Gibbs energy, and sorption
enthalpy and entropy and the held volume on the adsorbent is considered. It is
shown that the analysis of thermodynamic characteristics of the system makes an
important contribution to the investigation of adsorption and promotes the
development of chromatography.
Keywords: chromatography,
adsorption, held volume, holding time, thermodynamic characteristics.
INVESTIGATION OF THE INFLUENCE OF HClO4 ON
THE ATOMIC ABSORPTION SIGNAL OF CHROME
Rcheulishvili A.N., Tsibakhashvili N.J., Rcheulishvili
O.A., Abashidze A.I. and Janjalia M.M.
E. Andronikashvili Institute of Physics
J.
The
influence of various factors on the sensitivity of atomic absorption and atomic
fluorescence measurements of the concentration of Cr (VI) and Cr (III) has been
studied. The results of such investigations allow studying the chemical
processes proceeding in the flame during nebulization of chromic compounds. These
results enable us to account for and/or to reduce the measurement errors. Among
various factors, the influence of perchloric acid HClO4 on the
atomic absorption signal of chrome was studied. The obtained results pointed to
the possibility of selective determination of the Cr (III) compounds in
biological samples by using perchloric acid.
Keywords: atomic absorption
spectrometry, atomic fluorescence spectrometry, chrome, perchloric acid,
selective measurement.
APPLICATION
OF THE METHOD OF SPIN LABELING TO THE INVESTIGATION OF RECONSTRUCTION OF THE
TOBACCO MOSAIC VIRUS
Kalichava
G.S. and Lipartia K.D.
Agricultural
Various amino acids of the tobacco mosaic virus protein (TMV) were
modified by specific spin labels. The analysis of the rotation parameters of
the label demonstrated the absence of essential conformational changes during
the aggregation. The analysis of the rotation parameters in the area of lysine
53 and tryptophan 52 before and after the reconstruction into TMV enables us to
assume that RNA contacts the protein precisely in this area.
Keywords: tobacco mosaic virus, protein, spin label,
reconstruction.
X-Ray Characterization of Superpure Gallium Nitrate
Miminoshvili E.P., Kutelia E.R. and Beridze
Abstract. Superpure gallium
nitrate was obtained. For isolation of superpure 7N+ gallium,
membrane technology of purification was used. The elemental and X-ray
diffraction analyses showed that the composition of the obtained compound was
determined by the formula Ga(NO3)3×4H2O
instead of expected Ga (NO3)3×8H2O.
Keywords: superpure gallium,
gallium nitrate, X-ray phase analysis.
Investigation of the optical parameters of water solutions of
milk by the method of scattering channel
Beridze J.K. and Beridze T.J.
Shota Rustaveli State University, Batumi
multiple scattering
regularities in the optically infinite light-scattering channel filled with
water solutions of milk were investigated. The exponent of scattering and the
absorption of water solutions of milk were determined in a wide range of
concentrations by the measured values of extinction index of multiply scattered light in the channel. It
was shown that the conclusions of P1 –approximation of spherical harmonics
can be applied for investigation of multiple light scattering by the method of
light-scattering channel if the optical radius of the channel is sr³3,5.
Keywords: optical parameters, milk, water solution, light-scattering channel.
NOVOLACS BASED ON
OXIBENZENE AND ITS ALKYL-SUBSTITUTED DERIVATIVES
Chitrekashvili I.A., Molodinashvili Z.F., Papava
G.Sh., Gurgenishvili M.B.,
Khotenashvili N.Z. and Tabukashvili Z.Sh.
P. Melikishvili Institute of Physical and Organic
Chemistry
Mixed
novolac-type oligomers were synthesized in the melt on the basis of oxibenzene
and its alkyl-substituted derivatives. The content of dioxibenzene changed in
the range of 0.1-0.5 mol. The influence of temperature and the duration of the
reaction on the transformation of initial components was studied.
Keywords: novolac,
oligomers, oxibenzene, synthesis, melt, formaldehyde.
SIGNIFICANCE OF ZINC FOR VITAL FUNCTIONS OF THE
ORGANISM
Kipiani E.J., Kikalishvili M.I. and Bakradze-Guruli
M.Sh.
Akaki Tsereteli State University, Kutaisi
The
biological significance of zinc for vital functions of the organism is
discussed. It is stated that zinc is a metal of life. It is one of
irreplaceable microelements. Zink is a component of numerous enzymes such as
carbonic anhydrase, carboxypeptidase, alcohol dehydrogenase, etc. Zinc
participates in the formation of the enzyme-substrate complex, mineral
metabolism, exerts influence upon lipid metabolism, concentration of glucose in
blood etc. Besides, it appears to be one of the components of insulin and to
suppress the activity of some enzymes. Zink exerts specific influence upon
reproduction, increasing the quantity of posterity. Its deficiency may result
in short stature and late sexual maturity.
Keywords: enzyme,
zinc, carbonic anhydrase, complex, coordination.
THE
EFFECT OF ENZYMATIC PREPARATIONS ON THE COMPOSITION OF PHENOLIC COMPOUNDS IN
RED WINES
Godabrelidze
A.A.
Institute
of Horticulture, Viticulture and Wine-Making
Dry enzymatic preparations of different make were
added to the wine material produced from local grape variety Saperavi. The
reference was the wine material obtained by spontaneous fermentation. The
physical-chemical and organoleptic characteristics of the obtained materials
were studied. It is demonstrated that the use of dry enzymatic preparations
yields high-quality dry table wine, which satisfies the requirements imposed on
such products.
Keywords: red
wine, phenolic compounds, enzymatic
preparations, yeast, quality
ISOLATION
OF TOTAL COMPLEX BIOPOLYMERS FROM CLOUDY RED WINES
Mamardashvili
N.G., Mujiri L.A., Guliashvili M.A., Khositashvili M.L. and Bagashvili I.A.
Institute
of Horticulture, Viticulture and Wine-Making
Total complex biopolymers responsible for haze were
isolated from cloudy red wines and fractionated using different organic
solvents. It was established that the cloudy wines contain polymeric compounds
of different classes such as proteins, polysaccharides, phenolic compounds,
lipids and other. The solid phase of such a wine is a complex of interrelated
substances of a similar type.
Keywords: red wine,
cloudiness, complex biopolymers, fractionation, phenolic compounds.
FRUIT AND BERRY EXTRACTS
CONCENTRATED WITH POLYPHENOLS
Ebelashvili N.V.,
Chkhartishvili N.N., Jorjikia N.G. and Melikishvili M.V.
Institute of Horticulture,
Viticulture and Wine-Making
Abstract. It was established that the fruit and berry extracts
produced by the technology involving the concentration of polypenols, developed
by the authors, were characterized by a high content of biologically active
substances. It is inferred that these extracts are rather promising materials
for production of tonic alcohol-free beverages.
Keywords: fruit and berry extracts, polyphenols, titratable
acidity, sugars.
ISOLATION OF SHERRY YEAST FROM THE SPONTANEOUS
MICROFLORA OF GEORGIA AND THE INVESTIGATION OF ITS SPIRIT RESISTANCE AND
FERMENTATION PROPERTIES
Salia E.S., Kortava T.T., Vashakmadze M.B. and Khositashvili
M.L.
Institute of Horticulture, Viticulture and Wine-Making
From
the film formed on the surface of the wine material with specific sherry
flavor, produced by spontaneous fermentation of grape must of the Rkatsiteli
variety, 27 local strains were isolated. Their spirit resistance and
fermentation activity were studied. Out of these strains, five most promising
ones were selected.
Keywords: sherry yeast,
strain, spirit resistance, fermentation activity, wine material.
AGROBIOLOGICAL PECULIARITIES OF OLIVE GROWING AND CULTIVATION
Goginava L.P., Dzeria K.T. and Mikadze N.G.
Institute of Horticulture, Viticulture and Wine-Making
Abstract. The
state of the art in the field of olive growing in Georgia is reviewed. The
peculiarities of blooming, reproduction, lifetime and crop capacity of the
olive culture are discussed. It is demonstrated that, in Georgia, there are
favorable conditions for commercial growing of the olive.
Keywords: olive
tree, cultivation, cultivar, crop
capacity, biological properties.
ON THE MORPHOLOGICAL
CHARACTERISTICS AND QUALITY OF THE APPLE FRUIT
Shapatava Z.G., Dzeria
K.T. and Machaberidze A.T.
Institute of
Horticulture, Viticulture and Wine-Making
Abstract. The data on the
morphological characteristics of the apple fruit according to apple varieties
and their values are presented. It is demonstrated that the quality of the
fruit may be evaluated preliminarily by its weight and diameter. In regard to the diameter, there is a
correlation relationship between the data obtained at the initial stage of
fruit growth and the data obtained at the moment of picking. The correlation
relation ship established between the weight of the fruit and the content of
dry substances, sugars and ash was establishered as well. The amount of the
fruit, having the weight and diameter that are characteristic of the given variety was determined.
Keywords: apple fruit,
weight, diameter, dry substance, sugar, ash,
quality, correlation.
FUNCTIONAL
DISEASES OF FRUIT TREES
Kanchaveli
Sh.S. and Keshelava R.P.
L.
Kanchaveli Institute of Plant Protection
Functional
diseases of fruit trees appear as a result of
disturbance of metabolism under the influence of environmental
conditions which do not satisfy the needs of the plant. Among the functional diseases,
chlorosis, necrosis of plant tissues and organs, rosette diseases and other are
distinguished according to their harmfulness.
Keywords: functional diseases, fruit trees, chlorosis,
necrosis.
ON THE NECESSITY IN TAKING INTO CONSIDERATION OF THE
AGE FACTOR IN THE
AGE-SEX CLASSIFICATION OF FOOTWEAR
Grdzelidze M.G., Katamadze A.G. and Shalamberidze M.M.
Akaki Tsereteli State University, Kutaisi
In
the age-sex classification of potential consumers of footwear, it is essential
to differentiate a group of people whose feet differ from typical ones because
of their deformation associated with age. In the present article the necessity
in working out a new size-stoutness scale for production of footwear with
account for the peculiarities of such feet is justified.
Keywords: footwear,
foot deformation, age-sex classification, size-stoutness scale.
ON THE PROBLEM OF
AGE DEFORMATIONS OF THE FOOT IN THE DEVELOPMENT OF THE SIZE-STOUTNESS
SCALE OF FOOTWEAR
Grdzelidze M.G., Katamadze A.G. and Shalamberidze M.M.
The
article deals with the problems associated with age deformations of the foot
and their consideration in the size-stoutness scale of footwear. It is shown
that, in the age-sex classification of potential footwear consumers, the group
of old (60-80) and senile (older than 80) age must be separated out. The size
typology of the feet of the people of the abovementioned age, as well as the
statistical and biochemical characteristics of such feet, should thoroughly be
studied. It is emphasized that, because of age deformations, the aged people
have more individual sizes of feet, which must be accounted for in the
size-stoutness scale in the production of footwear for old people.
Keywords: footwear, foot, old
people, size-stoutness scale.
CHANGES IN THE ANTHROPOMETRIC SIZE FEATURES OF THE
MALE
POPULATION OF
Dolidze N.A., Datuashvili M.V., Lursmanashvili L.G.,
Chirgadze K.A. and Ugrekhelidze I.I.
Akaki Tsereteli State University, Kutaisi
The
issues of construction of size typology of the male population of Georgia are
discussed. For determining the changes in anthropometric features,
anthropometric measurements of Georgian servicemen were performed. The analysis
of investigation results has shown that the basic size features changed: the
average height grew by 6 cm; in the scale a new VII height was added – more
than 194 cm, while the average height made up 173.15 cm. The number of
stoutness groups increased for all size groups. These changes will be taken into
consideration when working out new size typology of the male population of
Georgia.
Keywords: anthropometric features, size typology,
anthropometric measurements.
CHANGES IN THE SIZES AND SHAPE OF HUMAN՚ S BODY DEPENDING ON THE BEARING
Datuashvili M.V., Dolidze N.A. and Charkviani I. D.
Akaki
Tsereteli State University, Kutaisi
The issue of dependence of man’s bearing on
some specific features of his body is considered. The analysis of research
results showed that the bearing is influenced by such size features as the
inclination of shoulders, the external and internal shape of the body, and also
the shape and position of hands. On the basis of studying the given question
and the available anthropometric tools, a device for more exact measurement of
the bearing is offered.
Keywords: anthropometric
measurements, bearing, shape of the body, anthropometric tools.
ON A
HYPOTHETIC MODEL OF PARTICIPATION OF THE IMMUNE SYSTEM IN METASTASIZATION OF
TUMORS
Sepiashvili
D.P.
Oncologic
Health Center, Ltd.
Tumor cells lose their capability of
self-destruction at the hazard of their transformation; they are actually
immortal. The macrophages phagocyting the oncogenous cell (its nucleus or
fragment) may not manage to destroy it. Under such conditions, the transformation
of the macrophage itself into the oncogenous cell could not be ruled out. In
the present work, a new hypothesis for the participation of the immune system
in the metastasization of tumors is proposed. The extensive investigation of
this mechanism would help to find new ways of cancer forecast and treatment.
Keywords:
immune system, tumor,
metastasis, hypothesis.