summary
On a statistical problem in
the Hilbert space: PART 1
Buadze T.G. and Sokhadze G.A.
The
problem of determination of the measure with the help of weak distribution in
the Hulbert space is discussed Such a criterion for the sign-alternative
distribution is proposed.
Keywords: Hilbert space,
measure, weak distribution, sign-alternative measure.
SUMMARY
On the measures arisen from
the solutions to the hurs problem with random terms
Sokhadze G.A.
A. Tsereteli Kutaisi State University
The
Hurs problem is considered. There were found the conditions at which the
measure corresponding to the solution of this problem in the functional space
is absolutely continuous in reference to the solution of the corresponding
linear problem. The Radon-Nikodim density was calculated. The problem with
white noise was considered separately.
Keywords: hurs problem, equivalence of
measures, Radon-Nikodim derivative.
SUMMARY
Formulae of extrapolations
and filtrations of partially observed solutions of quasilinear functional
differential equations with random disturbance:
Part I
Sokhadze G.A.
A. Tsereteli Kutaisi State University
The
issues of derivation of explicit formulae of extrapolations and filtrations of
random elements observed in the subdomain are discussed. This task has been
accomplished for general quasilinear equations, and the obtained explicit
formulae allow deriving the exact prediction formulae. For obtaining the
desired formulae, the Radon-Nikodim method of density was used. This method
permits the substitution of nonlinear equations with random terms with the linear ones with the same
terms.
Keywords: extrapolation,
filtration, Radon-Nikodim density, quasilinear equations, random disturbance.
Summary
Kinetics and thermodynamics
of formation of polar triplet exciplexes
Kokrashvili T.A. and Chabukiani L.V.
Georgian Technical University
The
kinetic and thermodynamic parameters of formation of polar triplet exciplexes
were obtained. Most of the triplet exciplexes were formed in the irreversible
process proceeding at virtually every encounter of the triplet with the
molecule of the electron donor in the solution.
Keywords: triplet, polar
triplet exciplex, electron donor, formation, kinetics, thermodynamics.
Summary
Kinetics of dissociation of
triplet exciplexes
Kokrashvili T.A., Chabukiani L.V. and Kokrashvili G.T.
Georgian Technical University
The
kinetics of dissociation of triplet exciplexes (TE) into radical ions of medium
polarity is described adequately in the scope of a simple diffusion model if
the distance between the radical ions is taken as the empiric value which could
exceed significantly the sum of van der Waals radii of reagents and which is
rather sensitive to the existing specific interrelations among the radical ions
in TE or between TE and surrounding molecules.
Keywords: triplet exciplexes,
triplet state, radical ions,
dissociation, kinetics.
SUMMARY
Investigation on the N-Layer
Metallic-Dielectric Grating
Kokilashvili L.G., Kevanishvili G.Sh. and Kokilashvili
G.L.
Georgian Technical University
The
complex N-layer grating each of the layers of which consisted of infinitely
long metallic and dielectric cylinders of finite thickness was studied. Its
reflection and transmission coefficients after the incidence of the plane wave
on it were determined.
Keywords: metallic-dielectric
grating, dielectric function, reflection coefficient, transmission coefficient.
Summary
Diffraction
of the N-layer grating of dielectric cylinders
Kokilashvili L.G.,
Kevanishvili G.Sh. and Kokilashvili G.L.
Georgian Technical
University
The
sacttering of plane waves by the N-layer grating of dielectric cylinders is
discussed. The problem is similar to the one that we resolved in our earlier
work. In this case, the energy distribution is of other character, as the
coefficients of transmission (B) and reflection (R) include the dielectric
coefficient η(μ).
Keywords: diffraction, plane waves, n-layer grating, dielectric cylinder.
summary
On the
topological similarity of the velocity field and the magnetic field structures
in the stagnation zone in front of the magnetosphere
Khantadze A.G., Chkhitunidze M.S.
and Zhonzholadze N. I.
Space Agency of Georgia
M. Nodia Institute of Geophysics
In previous works it was shown that, as a result of
splitting of the force line of interplanetary magnetic filed at a certain point
which is the edge of the magnetic configuration formed, it is possible to
obtain a magnetic surface similar to the conic surface approximating the
stagnation zone in front of the magnetosphere in space. The well-known Alven
solution for waves, which is valid for ideally conducting plasma, was obtained
under the condition of parallelism of velocity and magnetic field vectors. Such
orientation of the
frozen –in magnetic field in respect to the
velocity is likely to occur in
the solar wind before its
interaction with the
magnetosphere. Though.
such a condition could be
retained in the
stagnation zone in front of the magnetosphere as well. This possibility is demonstrated by using a
simple model of disturbance
when the plasma can
have both magnetic and
common viscosity. In
this case, the topological similarity of the
velocity and magnetic
fields could be retained
only if there are used some
restrictions which hardly affect the physical aspect of
the problem. It turns out that the topology of
current lines of the plasma
and the magnetic field could be identical not only in the ideal medium, but
also in the dissipative one, which is the plasma in the stagnation zone.
Keywords: magnetosphere, stagnation zone, magnetic
field, velocity field, structure, topological similarity.
Influence of the magnetic field on the transverse
runaway threshold
Bochorishvili B. G. and Metreveli N.K.
Iv. Javakishvili Tbilisi State University
Abstract. The
transverse runaway (TR) is a phenomenon when, for a certain combination of
energy and momentum scattering mechanisms of hot electrons and for a certain
threshold of the applied electric field, the internal (total) field tends to
infinity. In the work, the effect of the magnetic field on the transverse
runaway threshold is considered. It is shown that, with the increasing magnetic
field, the applied critical electric fields relevant to TR decrease.
The
obtained results are important for practical applications of the TR effect as
well as for investigation of possible nonlinear oscillations that may occur
near the TR threshold.
Keywords: galvanomagnetic effects, nonlinear effects, hot
electrons.
SUMMARY
INITIATION OF LOW-FREQUENCY PULSATIONS OF PRESSURE
UNDER THE CONDITIONS OF THE CRITICAL REGION
Gulua Yu.K.
Sukhumi Branch of Iv. Javakhishvili Tbilisi State
University
The
result of the model experiment under the conditions of critical region of the
flow along a semicylinder are presented. It is demonstrated that, under these
transient conditions, besides the periodic pulsations of pressure caused by
separation of vortexes, there occur periodic pulsations of pressure of lower
frequency which are caused by
periodic movement of the point of vortex separation on the semicylinder surface
under the conditions of the critical region.
Keywords: fluid, critical
region, vortex, separation point, low-frequency pulsation, pressure
SUMMARY
electrodinamic analysis of the system consisting of the
cylinder inserted in parallel with the narrow wall of rectangular waveguide and
the dielectric layer located behind
it
Kvatadze
Z.A., Kekelia G.V. and Kipiani D.O.
Georgian
Technical University
The electrodynamic properties of rectangular
waveguides with inserted obstacles, consisting of cylinders made of various materials
and a dielectric layer, are discussed. There is given an infinite set of linear
algebraic equations in reference to the coefficients of multifield spectrum
scattered by the field cylinder. The graphs of reflection index dependences on
the parameters of the problem were
plotted. The role of the load which is represented by the abovementioned system
at its insertion into the rectangular waveguide was analyzed. The advantages of
the suggested system over other well-known ones are emphasized.
Keywords: rectangular waveguide, cylinder, dielectric layer, electrodynamic
analysis.
influence of Thermo-mechanical and isothermal treatments
on the wear of ADI during dry friction
Khidasheli N.Z., Kutelia E.R., Bakhtiyarov S.I.,
Beradze G.V. and Demirkiran K.
New Mexico Institute of Mining
and Technology,
Abstract. The investigation on the
effect of combination of high-temperature thermo-mechanical treatment and
multistep austempering processes on the wear of austempered ductile iron (ADI)
during dry friction was conducted for two compositions of ADI: first –
high-silicon (2.2% Si), low-alloyed with
molybdenum and copper; second –low-silicon (0.5% Si), containing
aluminum (2% Al). The content of
sulfur was less than 0,002%. It was established that, for the investigated
compositions of ADI, there is the possibility of control of the transformation
of retained austenite by the degree and mechanism in the intermediate
temperature range; the optimum combination of high strength and good
wear-resistant properties of ADI is due to the ultrafine bainite structure
dispersion and the variable content of retained austenite.
Keywords: ADI,
wear, dry friction, heat treatment, bainite.
On
the Calculation of oscillations of structurally inhomogeneous Laminated slabs
Danelia
R.V. and
The problem of oscillations of
structural-inhomogeneous slabs with elastic facing and a viscoelastic inner ply
has been resolved. The synergism effect of viscoelastic behavior is shown,
which allows resolving the optimization tasks at designing the laminated
mechanical systems. In this work, the structurally inhomogenous three-layered
melallic polymeric slab with elastic facing and a viscoelastic inner ply in
considered.
Keywords: laminated slabs,
structural inhomogeneity, oscillations, calculation.
SUMMARY
On
the construction of the line of intersection of the hyperbolic paraboloid
surface with the elipsoid of revolution
Chavleshvili G.N.
In
this work, the following problem has been solved: the surface of hyperbolic
paraboloid and the surface of revolution coaxial with it, for example the
ellipsoid of revolution, are given; the line of their intersection is to be
constructed. The problem was solved by using the quadratic transformation.
Keywords: hyperbolic paraboloid,
ellipsoid of revolution, line of intersection.
Summary
About
a particular problem of minimization of the lost profit
Burjanadze V.O. and Javakhadze G.S.
There
is considered a problem of formation of the program of development, i.e.
the choice of a set of projects
which realization provides achievement of the aims in view. The problem about
working out the planned schedule of realization of the program is put as well.
In conditions of deficiency of financial resources, there is no opportunity of
simultaneous realization of all projects of the program. The problem of minimization of losses
for lost profit is solved and analyzed by the given example.
Keywords: project,
particular problem, profit , minimization of losses..
Summary
Modern
conception of the possibility of fulfilment of inversion and the
absolute energoinformation principle of conservation in the nature
Khvedelidze M.A.
The conception of
energoinformation duality (CEID) allowed considering the phenomena of life and
death as a cyclic regularity of the process of restoration and destruction of their
duality, i.e. bound energy and structural information. Then there arose the
hypothesis that such a cyclic regularity could be of a more global scale in
relation to the circulation of energoinformation duality form the bound state
to the scattered state and again to the bound state in the system of the
Universe itself, via the physical vacuum being scantly known. This fact could
be, at the same time, the fulfillment of the absolute energoinformation
principle of conversation (AEIPC). This was admitted as the generalized law of
information conservation in the Universe reasoning from CEID and
informationology. Further still, the author realized that some analog of such a
global cyclic regularity in the macroworld on the Earth is the process of
photosynthesis proceeding in plants at the expense of the energoinformation
flow from the Sun. The task is to find experimentally the mysterious phenomenon
of energoinformation inversion having been sought for ages. Apparently, only in
such a way it would be possible to correlate the paradox of the regularity of classical physics with
the regularity of quantum physics. Only then there would emerge the principle
opportunity for the mankind to design artificially the most sophisticated
engine – the converter “invented” by the nature itself by
supreme Mind’s program!
Keywords: conception, energoinformation duality,
inversion, absolute energoinformation principle of conservation.
Summary
The forms of antimony in natural and technogenic objects in the
region of mining and processing of sulfide ores of arsenic
Guguchia M.M,
Loria N.V., Labartkava N.A. and Supatashvili G.D.
Iv.
The content of antimony in natural and technogenic
objects in the region of mining and processing of sulfide ores of arsenic (the
Lukhuni River Ravine) was studied. It varied in the range of 0.13-6.45 g/kg.
The distribution of the forms of antimony in the abovementioned objects was
also investigated. The sulfide ore slag contained oxide forms, the soils –
sulfide forms, and the bottom sediments - silicate forms of antimony.
Keywords: antimony, content,
arsenic, sulfide ores, mining, processing.
SUMMARY
Quantitative Analysis of Organochlorine Pesticides in various
objects by gas CHRomatogpraphy
Kutkhashvili
M.G. and Gonashvili M.V.
Iv.
Organochlorine pesticides have greatest impact on
human health, and it is very important to study their content in the
environment. By the United Nations Stockholm Convention, they have been
classified as “Persistent Organic Pollutants” by their
environmental persistence, long half-lives and their potential of bioaccumulation in the organism.
Solid-phase
extraction gas-chromatographic method was developed for determination of
pesticides in soil, water and vegetable samples. The method permits the determination of
17 different pesticides. Individual detection limits were 0.0001 µg/ml.
Keywords: pesticides, quantitative
analysis, gas chromatography.
Summary
The Study of Separation of Some Amino Acids by Capillary
Gas Chromatography
Amirkhanashvili K.D.,
Nadiradze N.A., Vardiashvili R.O., Sidamonidze N.N. and Gagua Sh.G.
P. Melikishvili Institute of
Physical and Organic Chemistry
Iv.
A new method of transformation of amino acids into
methyl esters was studied. It is shown that methyl esters of studied amino
acids are better elueted at 165-170 oC. The use of CO2 as
an eluent reduces the analysis time and the asymmetry of the chromatographic
zone, and, at the same time, increases the column efficiency.
Keywords: amino acids, capillary
chromatography, methyl ester, eluent.
STUDY OF
THE KINETICS OF
TRIAMYLARSENITE
TRANSESTERIFICATION WITH HYDROQUINONE
Sulaberidze K.T., Bezarashvili G.S., Tsirekidze S.V.,
Dzotsenidze Z.G. and Gigauri R.D.
Iv.
Abstract. The
reaction between triamylarsenite and
1,4-dioxibenzene under nonisothermal conditions and with significant excess of
arsenite was studied by
means of kinetic experiment realization. The
process was observed using a
volumetric method via
distillation of the
by-product (amyl alcohol). The reaction rate values were determined by
the method of
graphical
differentiation of the kinetic curve. Specific kinetic equations describing the
dependence of the
depth of chemical conversion on
time under the
given experimental conditions are
presented.
Keywords:
kinetic experiment, kinetic equations, triamylarsenite,
hydroquinone, transesterification,
volumetric method.
Summary
Biologically Active Compounds of Asteraceae
Family:
Sesquiterpene Lactones of Two Species of the Plants of Jurinea Genus
Zakirov S.X.,
Abdusamatov A., Kupatashvili N.N., Kelbakiani L.V. and Tsakadze D.M.
Iv.
Two species Jurinea
Shachimardanica and Jurinea kokanica
of the plant Jurinea (Asteraceae) were studied on the content
of biologically active compounds. From the mentioned species, for the first
time, seven sesquiterpene lactones, including two new lactones of germacrane
row, were isolated: shachimardon C15H18O4
8-keto, 15-hydroxy-6β,7α(H), germacr-1(10), 4(5), 11(3) –
triene, 6, 12 – olide and lactones with the content of C15H20O4
8-keto,15 hydroxy - 6β, 7α(H), germacr-1(10), 4(5), – diene, 6,
12 – olide.
Three known lactones were identified.
Keywords: biologically active
substances, lactone, identification, isolation, sesquiterpenes.
SUMMARY
Extraction of biostimulantS
from the GRAPE-processing secondary products
Kalatozishvili E.I. and Mujiri
Scientific Research Institute of Horticulture,
Viticulture and Wine-Making
The biostimulants are produced from stems – the secondary
products of wine-making. The optimal
conditions of their production were established: reduction range - 2-5 mm; time
of hydrolysis - 2-3 hours; temperature - 90-950 C; concentration of
alkali - 1%. Indigenous vine varieties were subjected to experiment:
Rkatsiteli, Goruli Mtsvane, Tavkveri, and Kartlis Tita. Lopped shoots on 2-3
buds were processed by the solutions of different concentration: 1/10; 1/15;
1/30; 1/40 in 5 iterations.
Keywords: vine,wine-making, secondary products, processing, biostimulant.
SUMMARY
Combinational usage and effectiveness of Seduxen, Trental
and Aquagen Oxygen after a severe mechanical trauma
Research
Institute of Experimental and Clinical Medicine
Baratashvili
G.G., Kevlishvili O.Sh. and Megrelishvili N.Z.
In the experiment on rats with
crush syndrome there was established very high effectivness of Seduxen, Trental
and Aquagen Oxygen at their combinational intravenous injection after
decompression. The explanation of the phenomenon of significant increase in the Seduxen
effectivness caused by the combination of Seduxen with uneffective Trental
after a severe mechanical trauma was presented. This phenomenon is correlated
with intensification of the blood coagulative system after isolative injecton
of Seduxen.
Keywords: effectivness, mechanical trauma, Seduxen,
decompression, combinational injection, crush syndrome, Trental, Aquagen
Oxygen.
Summary
On the history Of silver and gold Mining in
Badzoshvili
T.V., Inanishvili G.V. and Chagunava R.V.
Tavadze
Institute of Metallurgy and Materials Science
The inventory of annual silver and gold revenues of
Akhtala Silver Plant for the period from 1784 to 1790 is discussed. The real
downtime after destructive invasion of Omar-Khan’s troops has been
refined. It made up one year instead of two years as it was believed before. It
is demonstrated that, after forced one-year downtime, the gold and silver
production tended to growth.
Keywords: gold, silver, mining,
historical inventory.
Transport of Pollutants in the
Estuarine System
on the
Chikviladze Kh.N., Dassenakis M. and Botsou F.
Ministry of Environmental Protection and Natural Resources of
Department of Chemistry,
Abstract. In this study
we tried to define the effects of the disposal of pollutants on the water
quality of the estuarine system on the Georgian coast of the Black Sea:
Keywords: environment protection,
estuary, pollution, lake
SUMMARY
Some problems of the geological hazard to the Baku-Tbilisi-Gayhan
main in the central part of Trialeti morphostructure (
Tsereteli
E.D., Gobechia G.N., Gobedzishvili
R.G., Gaprindashvili M.V. and Tsereteli N.E.
V. Bagrationi
Institute of Geography
Centre for
Studying the Productive Forces and Natural Resources
From the standpoint of the geological hazard to the
Baku-Tbilisi-Gayhan Main, of
primary interest is the activity of landsliding processes in the central part
of Trialeti morphostructure (
For providing the secure
operation of the Baku-Tbilisi- Gayhan Main, it would be expedient to organize continuous
geomonitoring of particularly hazardous geodynamic areas using terrestrial and
aerospace observations and geophysical studies and to create the relevant
database for due and reliable prediction of the state of hazardous landslides.
Keywords: main, Baku-Tbilisi-Gayhan
, geological hazard, landslide, geomonitoring, prediction.
Summary
Assessment
of the degree of pollution of surface water sources in the united state
monitoring system
tsikhelashvili z.i., chkheidze n.v. and japaridze
v.k.
the protection of water ecosystems against pollution
and, thus, the guarantee of environmental safety of population is a topical and
urgent problem. in this paper,
the problem of establishment of the united state monitoring system is
discussed. There are defined normal, crisis and disastrous situations in
reference to the environmental state of surface water sources and the degrees
and zones of risks for the population. The block diagram of information control
system for environmental monitoring is presented.
keywords:
environment protection, monitoring, surface water, pollution, environmental
Summary
On the Structure of Waste-Water Control System
Dolidze A.V.,
Dolidze V.A. and Makhashvili K.A.
The system of controlling the
waste water quality is described. The system includes a set of portable
instruments with wide possibilities, the instruments for continuous measurements in the mode of “instrumental guard” and
automated measurement systems. The indices to be measured and the measurement
ranges of portable instruments are given.
There are discussed the prospects for development of
automated analytical systems with the use of two computers operating in the following modes: the first one
deals with the tasks resolved in real time, while the second one deals with the
tasks which cannot be resolved in real time (long-term data storage, data
processing by the methods of mathematical statistics, the access to the
Internet and processing of measurement results from the objects which are not
controlled by measurement systems etc.).
Keywords: waste waters, quality
control, control system, portable instruments, monitoring.
Energy
Efficiency Assessment for Binary Steam and Gas Cogeneration Plants Using The
Proportional Method
Chitashvili
G.P., Arabidze G.O. and Khetaguri A.G.
Georgian
Technical University
Abstract. The proportional method of assessment of energy
efficiency of binary steam and gas cogeneration plants was developed. The
International Energy Agency has recommended the application of this method for
cogeneration plants. The proportional method differs from the physical one in
that the fuel saving is distributed between electricity and heat generation of
the cogeneration plant. Therefore, based on the proportional method, the
specific consumption of fuel on electricity generation is by 7-10% higher than
in the case of the physical method and vice versa: the specific consumption of
fuel on heat generation is even lower than the physical equivalent of thermal
energy (coefficient of efficiency >100%). This can be explained by the
conventional nature of the parameter – it is needed only for comparison
of the combined energy generation with its alternative separate method.
The tariffs for heat and
electricity generated by the steam
and gas cogeneration plant (as well as by any other type of cogeneration plant)
should be set only based on the market structure.
Keywords: steam and gas cogeneration plant, energy efficiency, assessment,
proportional method.
SUMMARY
Application
of the method of electromechanical analogy to the investigation of
Gelashvili
G.O.
The procedure of investigation
of electric drive systems, the mechanical part of which is characterized by
distributed parameters, using the proposed method of electrochemical alanogy.
By this method, the drill pipe string of the deep drilling rig is considered as
a ladder circuit consisting of an array of sequentially connected quadripoles.
There are given the equations of the ladder circuit, the analog models and the
results of investigation of the electric drive of the drilling rig.
Keywords: electric drive,
elecromechanical analogy, drilling rig, ladder circuit.
Summary
Analysis of ElectromagnetiC couplings and forces of the differential
linear pulse motor
Jikhvadze I.J.
The electromagnetic and electromechanical features
of the designs of linear pulse motors are analyzed. It is demonstrated that,
for calculation of the induction, the forces and the utilization factors,
well-known relations for rotary pulse motors can be used. The estimation of
radial forces of one-side magnetic attraction of the armature is presented. It
was established that under the action of these forces, the friction in supports
is the function of current in motor phases at significant eccentricities. The
recommendations on the choice of supports are given.
Keywords: linear pulse, motor,
electromagnetic coupling, electromagneric forces.
Summary
A New Kinetic equation for the scale formation at the reaction
surface diminution
Nakhutsrishvili
I.G.
There were derived implicit kinetic equations of the
gain in weight (m) of the metal
(alloy)/scale system at gradual diminishing of the effective oxidation area:
,
where k is
the coefficient of change in the effective area; k1 and k2
are the rectilinear and the parabolic constants, respectively; m0 is the initial weight of
scale; t is the time of oxidation.
Particular limiting cases of this equation at k1=¥ and/or m0=0 are considered.
Keywords: oxidation, kinetic
parameters, specific weight gain, effective reaction area, equation of scale
formation.
MATHEMATICAL
MODELING OF THE DATA TRAFFIC IN OPTICAL
PACKET SWITCHED NETWORKS
Mirtskhulava
L.G., Mirtskhulava E.G. and
Gugunashvili G.N.
Abstract: The optical burst switching
(OBS) analysis is given with the use of the mathematical model of optical
packet data traffic. The queuing theory is applied to modeling the flow
aggregation process in the edge router, using the model with Poisson distribution of
interarrival time between IP packets.
Keywords: Optical Burst Switching
(OBS) traffic, analytical modeling, Poisson distribution
On
Page Management in Database Access
Kobiashvili A. A. and
Kutateladze R.G.
Abstract. The information access
process in databases is considered. The page management algorithm for creation
and initial loading of databases, as well as for database updating, is offered.
Keywords: database, access, page
management.
SUMMARY
The
study on the mathematical model of the drill pipe string
Machabeli G.G.,
Mchedlishvili N.P. and Gelashvili G.O.
Wave processes occurring in the drill pipe
string exert a profound effect on
the efficiency of drilling. The analysis of these processes is related to the
solution of a quotient derivative eqation. In the paper, the method of
mechanical analogs was used. The obtained simulator of the drill pipe string
was analyzed by means of the method of computational mathematics Matlab.
Keywords: drill pipe string,
simulation, wave equation.
Summary
NOmograms for CALCULATION of thermophysical characteristics of tea
Khvedelidze
V.G., Gordeladze D.J., Tabagari T.B. and Mikeltadze Sh.O.
The trial-and-error mathematical models for
determination of thermophysical characteristics of tea with the confidence
coefficient of 0.95 were obtained depending on the humidity, the temperature
and the density of the material. The applicable nomograms for the analysis and
practical calculations were constructed.
Keywords: tea, thermophysical
characteristics, nomograms.
Summary
Study
of the antimicrobial properties of biopolymers and Medical textiles
Pailodze N.O., Buadze E.P.
and Sharabidze M.R.
A.
In the present work we have studied antimicrobial
properties of medical towels and of the biopolymer composition which the
aforesaid towels are impregnated with. For this purpose, we developed several
combinations of the composition, namely the pure bentonite composition, the
suspension with a softener and another one with glycerin. The presence of
microbes was checked on the day of preparation, and in 7 and 10 days after
preparation of the composition. As the analysis showed, the bentonite-softener
composition appeared to be the best one; the number of microbes in it was much
less than in two other compositions.
So, we may conclude that, for production of medical towels, it is better
to use the fresh bentonite-softener composition.
We prepared medical towels impregnated with three
combinations of the composition and then dried them at high temperature. High
temperature drying appeared to improve the antimicrobial properties of medical
towels. The bentonite-softener composition can be recommended as the most
suitable one in this case as well.
Keywords: biopolymer, medical
textiles, softeners, antimicrobial properties.
Summary
PREDICTION
OF THE YIELD of BIOLOGICALLY
ACTIVE substances FROM TEA RAW
MATERIAL
Khvedelidze
V.G., Gordeladze D.J., Mikeltadze Sh.O. and Tabagari T.B.
As a result of statistical handling of the
perennial data of mechanical composition of economic tea raw material, the
relation of the content of tender, coarse and rough fractions in tea raw
material was established. Mathematical expressions for prediction of the yield
of biologically active substances from any tea raw material were obtained.
Keywords:
tea, raw material, biologically active substances, prediction of the yield
SUMMARY
Production of beer wort dry
concentrate
Dzekonskaya M.L.
Georgian Technical University
Beer
wort dry concentrate is light or dark powder produced from hopped wort by its
drying in the vacuum spray drier. By the technological scheme, the hopped wort
of concentration 14-17% is fed from the hop extraction vessel into the
collector, where it is cooled up to 60-900C, and then it passes to
the nozzle of the drying tower. The wort is sprayed by compressed air under the
pressure of 6-7 atm. and dried. The dried powder deposits in filter sacks,
pours out into the cyclone collector and is packed in packages. The beer wort
dry concentrate is easy to store and to transport. We simply dissolve it in water, and the
wort is ready for fermentation. This allows saving the expenses on electric
power, hot steam and gas, which, in its turn, reduces the cost of beer
production. The beer wort dry concentrate provides the production of stable
beer without colloidal fog.
Keywords: brewing, beer wort,
dry concentrate, hopped wort, fermentation.
Summery
agroclimatic conditions of cultivation of
the tangerine of UnshYu VarEty in Ajara
Vasadze
Yu.Sh. and Gogitidze G.M.
Georgian
Institute of Tea, Subtropical Cultures and Tea Industry
The
issues concerning agroclimatic conditions of cultivation of the tangerine of
Unshyu variety in Ajara, Georgia, are discussed. The total response of the
culture to low temperatures including frosts were studied. The areas of
spreading of the tangerine of Unshyu variety by vertical zonality in the
fruit-production zone of Ajara were established.
Keywords: tangerine, Unshyu variety, cultivation, area of spreading, vertical
zonality.
Summary
Rational Using of Bean Flour in the Baking of BreAd
Pruidze
E.G., Silagadze M.A. and
Tavdidishvili D.R
A.
Tsereteli Kutaisi State University
The
favorable effect of using the flour of vicia Faba beans on the quality of
white bread is demonstrated. The optimal quantity of added unroasted bean flour
is 10%, and roasted - 15% to the mass of flour. At the use of bean flour in the baking
of bread, slowing down of hardening to 6-10 hours is observed.
Keywords: bread baking, bean
flour, rational additive.