DETERMINATION OF THE
ESTIMATING ALGORITHM OF THE MATRIX OF
PARAMETRICAL FUNCTIONS FOR
DETERMINISIC DYNAMIC MODELS AND
ITS COMPUTER INVESTIGATION FOR STATIONARY CASES
Odisharia G.B., Kukhalashvili N.K., Kasoshvili K.N.
and Odisharia D.A.
I. Vekua Sukhumi Institute of Physics and Technology
Abstract. The results of the computer
analysis of the properties of the estimating algorithm of the parametric
functions matrix for the deterministic differential model of controlled
processes are presented. The investigation showed that the algorithm under
consideration was stably convergent.
Keywords: algorithm, matrix,
estimation, computer analysis.
DETERMINATION
OF THE OPTIMUM
CONDITION IN THE
DETERMINISTIC DIFFERENTIAL MODEL IDENTIFICATION TASKS
AND COMPUTER ANALYSIS OF THE
OBTAINED ALGORITHM FOR THE STATIONARY CASE
Odisharia G.B., Kukhalashvili N.K., Kasoshvili K.N.
and Odisharia D.A.
I. Vekua Sukhumi Institute of Physics and Technology
Abstract. The algorithm of estimation of the matrix of pulse-transitive functions
of the differential vector model of some multidimensional controlled process
was determined. The algorithm under study was obtained from the solution of the
corresponding optimization task minimizing the quadratic criterion, which
reflects the performance efficiency of
the synthesized control system. The computer modeling of the basic
characteristics of the obtained algorithm was performed. The investigation
demonstrated that, for the case of stationary deterministic processes, the
algorithm under study showed absolute convergence and exhibited good
adaptability when the trajectory was deliberately deviated – it rapidly
returned the perturbed process to the right path.
Keywords: identification,
algorithm, process control,
pulse-transitive matrix.
SUMMARY
THE ALGORITHM OF IMAGE
COMPRESSION BY THE EXAMPLE OF JPEG STANDARD
Khuntsaria J.M.,
Khiryanov Yu.A. and Khuntsaria L.J.
Georgian Technical
University
One of the options for compact representation
of still color images based on the JPEG Standard is considered. Individual
steps of the process of encoding and decoding in the JPEG algorithm are
discussed. These steps include the formation of a lumence and two chroma components of the color R, G and
B signals of the image; their representation in the binary form and their
division into separate blocks of 8x8; the block conversion of each component
based on the discrete cosine transform; the quantization of the transform coefficients; the representation
of the two-dimensional array of the transform coefficients as a one-dimensional
one by one-by-one zigzag-scanning; encoding by using the Huffman code; the
representation of the lime by the binary sequence of symbols. An example of
encoding and decoding of a fragment of the image is given.
Keywords: image compression, algorithm,
encoding, decoding, JPEG Standard.
SUMMARY
ON THE AUTOMATION OF COMPUTATION OF LINEAR SIGNAL ENERGY SPECTRA IN
DIGITAL FIBER-OPTICS TRANSMISSION SYSTEMS
Mestiashvili K.V., Chkhaidze M.T. and Svanidze R.G.
Georgian Technical University
Linear signals represent a subsystem
of modulation of the digital fiber-optics transmission system (DFOTS) and play
an important role in this operation. The present paper deals with the computation
of the energy spectrum (continuous component) of linear signal BI-L of the mBnB
class by the method of inverse matrices using the iteration process. The
obtained result is identical to the one obtained by using the analytical
expression, the process of computation being completely automated.
Keywords:
fiber-optics transmission system, energy spectra, linear signals, automated
computation.
AUTOMATION OF PROTECTIVE
INFORMATION
Kamkamidze K.N. and
Gogiberidze Z.A.
Georgian Technical University
Abstract.
The complexity of the process of decision-making and the absence of an adequate
body of mathematics lead to the fact that, when assessing and selecting the
alternatives, it is possible (and often just essential) to use and process
experts’ qualitative information. A linguistic approach based on the theory of
fuzzy sets and the linguistic variable is a promising way of development of the
methods of decision-making at initial experts’ information.
Keywords: information
resources, protective information, security, fuzzy set.
FUNDAMENTALS OF
HYPOTHESIS TESTING
American university
for humanities, Tbilisi Campus
Georgian Technical University
Abstract. The
methods of testing of parametric hypotheses are discussed. The parametric
hypothesis is a statistical hypothesis concerning the numerical value of some
parameter. When testing the parametric hypothesis, along with the null
hypothesis H0, an alternative hepothesis H1 is
considered. There is formed such a test that, based on the population sample x1,
x2, ...xn, will allow making the decision: either to
reject the null hypothesis or to decide that the obtained data do not give
grounds for such rejection.
Keywords: hypothesis testing, population,
sample, confidence level, significance.
NONPARAMETRIC
STATISTICS
American University for Humanities, Tbilisi
Campus
Georgian Technical University
NONPARAMETRIC
STATISTICS
American University for Humanities, Tbilisi
Campus
Georgian Technical University
SUMMARY
THE SOLUTION TO THE
THREE-DIMENSIONAL DYNAMIC PROBLEM OF THE THEORY OF ELASTOTHERMODIFFUSION WITH
MIXED BOUNDARY CONDITIONS
Bezhuashvili Yu.A. and
Rukhadze R.V.
Georgian Technical
University
A three-dimensional dynamic problem for a set
of non-stationary equations of the conjugate theory of elastothermodiffusion is
considered. The theorems of the existence and uniqueness of regular solutions
are proved by using the method of potentials, singular integral equations and
Laplace transform.
Keywords: elastothermodiffusion, conjugate
theory, three-dimensional dynamic problem, mixed boundary conditions, regular
solution.
SUMMARY
RIGOROUS COMPUTATION
OF THE FOUR-PORT WAVEGUIDE JUNCTION
Alavidze M.V., Kekelia
G.V., Shavlakadze N.N., Kobiashvili P.G. and Kipiani G.O.
D. Guramishvili
Georgian-Ukranian International University “Iberia”
The aim of the present work is the rigorous
electrodynamic computation of the four-port waveguide junction with
non-intersecting resonator parts. The side ports could be connected as from one
wall, so from the opposite walls of the main waveguide. The problem is solved
by the method of partial areas. Having applied the conditions of continuity of
the tangent component vector of electric field strength, all the coefficients
of the scattered field are expressed in terms of the field amplitudes in side
ports. After the realization of the conditions of continuity of the tangent
component vector of magnetic field strength on pseudointerfaces between the
side ports and the main waveguide, a dual infinite set of linear algebraic
equations in respect to the coefficients of the scattered field in the side
ports was derived.
Keywords: waveguide, four-port junction, non-
intersecting resonator parts, scattered field.
SUMMARY
IDENTIFICATION OF THE
STRUCTURES OF NONLINEAR MULTILINK OBJECTS WITH DISTRIBUTED PARAMETERS
Narimanashvili N.I.
and Narimanashvili D.N.
Georgian Technical
University
An experimental method of selecting the
structure of the nonlinear two-link dynamic object with distributed parameters
was developed. Block-oriented models, the elements of which are the Hammerstein
and Wiener simple models with sine input actions, were used. The nonlinear
stochastic link of the model is defined by a quadratic parabola, whereas the
linear dynamic links – by differential equations in partial derivatives of the
first order.
Keywords: identification, model structure,
distributed objects, multilink dynamic systems.
Preparation and Characterization of Carbon Nanoparticles
Doped with Magnetic Clusters
Rukhadze
L.G., Kutelia E.R., Maisuradze N.I., Eristavi B.G.
and Bakhtiyarov S.I.
Georgian
Technical University
New
Mexico Institute of Mining and Technology, Socorro, NM, USA
Abstract.
Carbon nanoparticles were, with ferromagnetic
iron oxide and clusters of cobalt atoms, were synthesized via a novel
technology which combines the method of pyrolysis of ethanol vapors and the
chemical vapor deposition (CVD) process in a horizontal continuous reactor with
certain temperature gradients and controlled partial oxygen pressure. Scanning
Electron Microscopic (SEM) and Auger Electron Spectroscopic (AES) studies of
synthesized magnetic carbon nanopowders showed that, in the free-deposited
state, in the absence of the external magnetic field, the nanopowder consisted
of randomly distributed carbon nanoparticle aggregations 200 nm in diameter
doped with the magnetic clusters. Under the exposure to the low external
magnetic field (~0.01 T), the nanoparticles assembled into large-scale linear
nano-chain structures.
Keywords: carbon nanoparticles, magnetic clusters, core-shell, iron, cobalt, SEM,
AES, nanopowder.
SUMMARY
JET FLOWS DURING EXPLOSIVE TIGHTENING
OF POROUS SHELLS AND THEIR APPLICATIONS
Akhalaia T.S.,
Khachidze R.M., Supatashvili D.G., Herzog V.Yu. and Kabulashvili V.G.
LEPL State Military
Scientific-Technical Center DELTA
In this article, the impact of high initial temperature
on the physical processes during high-speed collisions is discussed. It is
justified that, with increasing initial temperature of penetrating coverings,
the speed of penetrating jets increases and becomes almost identical to the
parameters described by the hydrodynamic theory of penetration.
Based on the investigation results, the
possibilities for creating porous hollow charges with higher piercing
capability than that of ordinary, solid hollow charges are shown. It is also
demonstrated that the porous covers can be used in telescopic hollow charges
for obtaining multi-gradient penetrating flows.
Keywords: jet flow, porous shell, explosive
tightening.
THE ANALYSIS OF shells with THE
ribs OF variable stiffness and THE orthogonal extrusion
Zonenashvili I.A., Kipiani G.O., Okruashvili Sh.A., Rekhviashvili
G.M.
Iv. Javakhishvili Tbilisi State University
Georgian Technical University
abstract: The developed method of analysis
of shells and plates with ribs in linear and non-linear formulation and the obtained
design formulas provides a possibility of describing all singularities in the
distribution of components of mode of deformation nearby of regularity
irregularities, reflecting the variation and redistribution of stresses and
moments in the loading process.
Keywords: shell, plate, ribs, extrusion,
variable stiffness.
SUMMARY
ON THE MEASUREMENT OF THE SPEED IMPARTED TO THE BODY OF THE WALKING
ROBOT BY ITS LEG
Machavariani G.A. and Dekanozishvili G.G.
Institute of Cybernetics
The problem of measuring the
locomotion speed in the control system of the six-legged walking robot is
discussed. A method of improving the accuracy of the locomotion speed
measurement by improving the accuracy of differentiation of the feedback signal
in the speed stabilization regulator is proposed.
Keywords: walking
robot, locomotion speed, measurement accuracy.
DEVELOPMENT OF A
LINEAR CONCENTRATOR PHOTOVOLTAIC MODULE USING AN INNOVATIVE CYLINDRICAL
ASPHERIC LENS
Avaliani J.J. and
Kordzakhia I.I.
LEPL Institute
OPTICA
Abstract. Systems of optical concentrators increase the
opportunity of utilization of solar energy and provide high efficiency of
energy transformation. In this article, the method of the improvement of
efficiency of PV converters is offered. We have designed new optics for
photovoltaic concentrator systems based on biconvex aspheric, linear-focus plastic
lenses and high-efficiency multijunction solar cells. These lenses provide a number of advantages
for practical implementation: simplification of the electrical connections,
increased electrical efficiency, better usage of the cell active area, and simplification
of the cell cooling system. we
carried out the experiments with another set of quadratic lenses with
dimensions of 190 mm´190
mm and optical focuses of 700mm and 800 mm. In this scheme one lens is above
the other with its optical axis oriented 90º with respect to the other.
The upper lens plays the role of the primary concentrator and the lower one of
the secondary concentrator. In this approach, the focal area of concentrated
solar energy was square, 11mm´11mm,
with the concentration ratio of 300 and the measured generated power of 6.4
Watt. The results of this experimental investigation of the performance of PV
cells under the aspherical cylinder lens with a linear focus resulted in
the measured efficiency up to 26%.
Aspherical polymer lenses with a circular optical focus were made in the form
of a rectangle. Such a rectangular form allows receiving the maximum solar
radiation. The PV-block consists of 15
aspherical lenses – optical concentrators. In the focus of these lenses
(optical focus is equal to 700 mm) are placed the Ga-As multijunction solar cells (15pcs).
Keywords:
aspheric profile, cylindrical lens, linear
focus, Ga-As solar cell, photovolt
aic module.
SUMMARY
TECHNOLOGY OF FUEL
BURNING IN HIGH-TEMPERATURE FLUIDIZED-BED FURNACES
Kevkhishvili N.A. and
Natsvlishvili T.Sh.
Georgian Technical
University
An efficient method of high-temperature burning
of inferior coal is proposed. The method involves using the high-temperature
fluidized bed. Being in random motion, the solid particles are crushed into
finer and finer ones at high temperature in the fluidized bed, which eliminates
the need in preliminary crushing of solid fuel.
Keywords: high-temperature fluidized bed,
solid fuel, fuel burning.
SUMMARY
MINERALOGY OF SOILS OF
THE FOLIATED SHALE FORMATION OF OCRIBA BATHONIAN
Makharadze A.I.
Akaki Tsereteli State University,
Kutaisi
The article deals with the soils of the
foliated shale formation of Ocriba Bathonian (Georgia). It was revealed that
the soils developed on clay rocks of the foliated shale formation of Ocriba
Bathonian consist of montmorillonite, illite and various mixed-layered rocks. The
soils developed on volcanic clastic rocks consist of illite, kaolinite-group
minerals, beidellite and mixed-layered beidellite-kaolinite.
Keywords: soil, waste mantle, foliated shale,
compacted clay, illite, beidellite, kaolinite, montmorillonite.
SUMMARY
A MODIFIED METHOD OF ASSESSMENT OF ECOLOGICAL
CONDITIONS AT GAS EMISSION FROM THE GAS MAIN
Namgaladze D.P. and
Kavtaradze I.I.
Georgian Technical
University
A modified technique of determination of the
field of concentration of harmful substances at gas emission into air is
proposed. When modifying the technique, besides the organized emission of gas,
the unorganized emission (leaks) and the wind rose in the concrete locality are
taken into consideration. It is demonstrated that the results obtained by using
the modified technique are close to real conditions.
Keywords: gas main, environmental protection,
gas emission, maximum permissible concentration.
SUMMARY
SOME ASPECTS OF
ATMOSPHERIC ECOLOGY
Pirtskhalava N.V., Zautashvili M.G., Dzagania
M.A., Rubashvili I.M., Burkiashvili N.O. and Kordzakhia K.T.
P. Melikishvili
Institute of Physical and Organic Chemistry
St. Andrew’s University
of the Patriarchate of Georgia
Some concepts concerning the air pollution are
considered. A considerable number of actions and phenomena causing the
environmental degradation and a complex of engineering solutions directly or
indirectly intended for termination or reduction of the air pollution are
discussed.
Keywords: air pollution, ecology, industrial
emission, exhaust, natural zeolites.
RIVER CLASSIFICATION IN AZERBAIJAN
(BY THE EXAMPLE OF THE GANJACHAY RIVER)
Verdiyev Rafig Hamid
Scientific Reserach Institute of Hydrometeorology, Azerbaijan
Abstract. In the article, the River Classification System
employed in Azerbaijan is analyzed and a more appropriate one is proposed with
the aim of improving the water
management in the conditions of significant human activities and global climate
changes. The advantages of the developed system over the existing one are
discussed.
Keywords: water quality, maximum permissible concentration,
waste waters, chemical analysis, biological analysis, ecological status
SUMMARY
ALGEBRA-CHEMICAL
INVESTIGATION OF THE BIOLOGICAL ACTIVITIES OF MONOMERS AND POLYMERS WITHIN THE SCOPE OF QUASI -ANB –
MATRICES METHOD
Karchkhadze M.G. and Gverdtsiteli M.I.
Iv. Javakhishvili
Tbilisi State University
A new approach to the investigation of biological activities of monomers and polymers are discussed within
the scope of quasi-ANB-matrices method. The diagonal elements of quasi-ANB- matrices are the sums of the
atomic numbers of the chemical elements,
which the structural fragments of the molecule contain; the nondiagonal
elements are the multiplicities of the chemical bonds.
Kåywords: monomer,
polymer, biological activity,
quasi-ANB-matrix.
SUMARRY
NOVEL FLUORESCENT
PROBES BASED ON AMINOPYRIDONE - CONTAINING COMPOUNDS
Obolashvili N.Z.,
Elizbarashvili E.N., Lagvilava I.V. and Topuria Kh.D.
Georgian Technical
University
novel pyridone -
containing dyes have been synthesized by treating the compounds containing
aminopyridone moiety with cyanuric chloride at 0-5 °C for 7-12
hours. The synthesized dyes may be used as fluorescent probes for staining of
polypeptides.
Keywords: fluorescent, luminescence, aminoanthrapyridone.
SUMMARY
KINETIC ANALYSIS OF THE STABILITY OF PENICILLIN
Berdzenishvili I.G.
Georgian Technical University
It is demonstrated that the change
in the antibiotic activity of penicillin in time in the presence of buffer at
pH7.0 is of a linear character. The agreement between the obtained results and
the kinetics of first-order reactions was established. The half-life period of
the antibiotic was determined as equal to 3.37 weeks.
Keywords: antibiotic,
penicillin, stability, kinetics, half-life period.
MONOMERIC PHENOLIC
COMPOUNDS IN DRY RED TABLE WINES PRODUCED BY DIFFERENT TECHNOLOGY
Ebelashvili N.V., Mujiri
L.A., Chkhartishvili N.N. and Asashvili T.Sh.
Institute of
Horticulture, Viticulture and Wine-Making
Abstract. The quantitative content of
monomeric phenolic compounds in the samples of dry red table wines produced by
different technology from local grape varieties
was studied by high-efficiency liquid chromatography. The test wine samples
produced by the technology developed by the authors – by concentration of
polyphenols and the control samples produced by standard red wine technology
were the subject of investigation. It was determined that, in comparison with
the control samples, in the test, samples the mass concentration of
phenolcarboxylic acids was higher by 69-80%, of cathecols – by 64-143%, and of
vanillic aldehyde – by 41-122%. The observed changes in the content of phenolic
monomer compounds promoted the antioxidant activity of the test wine samples
and improved their quality. The wine samples produced by the proposed
technology of concentration of phenols are more full-flavored and harmonic, and
are characterized by richer bouquet than the control samples. The score of
tasters’ judgement of the test samples was higher by 0.18 points than that of
the control samples.
Keywords: red wines, phenolcarboxylic acids,
catechols.
BIOLOGICALLY ACTIVE SUBSTANCES IN FRUIT-BERRY JUICES PRODUCED BY
CONCENTRATION OF POLYPHENOLS
Ebelashvili N.V., Jorjikia N.G., Sikharulidze T.M., Bagashvili I.A. and Makhatadze
M.P.
Institute of Horticulture, Viticulture and Wine-Making
Abstract. The
content of biologically active substances was determined in the test and
control samples of black mulberry, blackberry and cherry juices. The test
samples were prepared by the technology developed by the authors – by
concentration of polyphenols, and the control samples – by standard technology.
The content of phenolcarboxylic acids, catechols and organic acids was
determined by the instrument Pro Star, Varian, and the content of mineral
substances (K, Ca, Na and Mg) – by the atomic absorption spectrometer (Perkin
Elmer). The investigation results showed that the quantitative content of the
abovementioned biologically active substances was much higher in the test
samples than in the control ones, prepared by the standard technology.
Keywords: biologically
active substances, fruit-berry juices, concentration of polyphenols.
SUMMARY
THE STUDY ON THE
EFFECT OF SULFITATION ON DIFFERENT STAMMS OF LOCAL JERES WINE YEAST
Kortava T.T., Salia
E.Sh., Khositashvili M.L. and Vashakmadze M.B.
Institute of
Horticulture, Viticulture and Wine-Making
The study on the effect of different
sulfitation doses on the stamms of local Jeres wine yeast, isolated by the
authors, showed that the sulfitation doses of 100 mg/l, 150 mg/l and 200 mg/l
of free sulfurous acid did not produce the inhibiting effect on the survival
and fermentation activity of the isolated stamms.
Keywords: yeast,
sulfitation, resistance, fermentation activity.
Use of Fluoroplastic Membranes for Clarification and
Stabilization of Wine by the Method of
Microfiltration
Gotsiridze R.S., Mkheidze S.N., Mkheidze N.P. and Pipaishvili M.N.
Research Institute of Membrane Technology, Shota Rustaveli State
University, Batumi
Abstract. The results of sterile filtration of wine in order to
improve its clarity and stability are presented. The experiments were performed
by using a laboratory microfiltration plant. The membranes made from
fluoroplastic were used as filtrating elements. The process of chemical
regeneration of membranes was also studied.
Keywords: wine, clarification, stabilization, microfiltration,
membranes, fluoroplastic.
SUMMARY
IMPROVEMENTS IN THE TECHNOLOGY
OF PRODUCTION OF RED WINE BY USING BIOCATALYSIS
Kalatozishvili E.I., Godabrelidze
A.A and Mujiri L.A.
Institute of
Horticulture, Viticulture and Wine-Making
The effect of enzymatic preparations on the
quality of wine materials from Georgian red grape cultivar Saperavi was
studied. After separating the stems, the grape was pressed by a mechanical
press. The pomace was sulfitized and divided into four equal parts. To each
part, an enzymatic preparation was added (four different preparations were
used). The physical-chemical and organoleptic indices of the obtained wine
materials were studied. The organoleptic estimation showed that the use of
enzymatic preparations in the production of red wine materials results in the
yield of wine materials with sharply pronounced variety flavor and pleasant
tones with acceptable astringency and bitterness.
Keywords: red wine, production process,
enzymes, yeast, fermentation.
SUMMARY
The Influence of Potassium on the Potassium-Sugar
exchange in grapes
Tsitsilashvili
O.K., Asashvili T.Sh., Magalashvili M.Z., Vibliani M.M., Sidamon-Eristavi M.E.
and Berozashvili V.A.
Institute
of Horticulture, Viticulture and Wine-Making
Georgian
technical University
Having
analyzed a number of grape cultivars, it is shown that the high sugar level in
mature berries correlates with the accumulation of large amounts of potassium
and organic acids in unripe berries, and that, with a subsequent abrupt decrease
in the potassium content during their ripening, the potassium content in the
fruit stem rises. That implies that
sugar accumulation in grapes is accompanied by potassium translocation from the
berries to the fruit stems. Possible mechanisms of such a translocation that is
intended for maintaining the osmotic pressure in the berry cells are
discussed.
Keywords: grapes, sugar potassium,
exchange.
Summary
CHANGES in the SUGAR AND
Potassium content IN THE
GRAPEVINE FROM THE BEGINNING OF MATURING TILL FULL MATURITY
Tsitsilashvili O.K.,
Khositashvili M.L., Magalashvili M.Z., Vibliani M.M.,
Khositashvili Ò.V. and Asashvili A.Sh.
By the example of Georgian grape cultivars, it is shown that the high
sugar level in mature berries correlates with the accumulation of large amounts
of potassium and organic acids in unripe berries, and that, with a subsequent
abrupt decrease in the potassium content with grapes ripening, the potassium
content in fruit stems rises. That implies that the accumulation of sugar in
grapes is accompanied by potassium translocation from the berries to the fruit
stems. Possible mechanisms of such a translocation that is intended for
maintaining the osmotic pressure in the berry cells are discussed.
Keywords: grapes, sugar, potassium, maturation.
SUMMARY
THE
RESPONSE OF CELL ORGANELLES TO POTASSIUM DEFICIENCY
Tsitsilashvili
O.K., Vibliani M.M., Tsiklauri L.Z., Asashvili A.Sh. and Oshakmashvili Ts.L.
Some aspects of metabolism in vine leaves at
potassium deficiency are discussed. The K-deficiency in chloroplasts results in
the inhibition of chlorophyll synthesis. It also causes changes in the ratio of
assimilates in the leaves, in particular, the photosynthetic inclusion of C14O2
into sugars and organic acids decreases, and the percentage of 14C-aminoacids
in the leaf increases.
Keywords:
potassium deficiency, organelle,
cell, leaf, response.
summary
The peculiarities of
preservation of some apple cultivars
Shildelashvili I.I. and Gamkhvetelashvili
L.N.
The work deals with the peculiarities of preservation of some apple
cultivars. Based on the investigation results on the preservation ability of the apple
fruit, we established that the apples of the Kekhura cultivar could be
preserved for eight months, Georgian Sinapi and Meretula - for seven months and
Shampanuri Reneti - for six months. at
the beginning of preservation, the Kekhura and Georgian Sinapi cultivars were
distinguished by the sugar content – 9.8%and 9.4 % respectively and the
Georgian Sinapi and Kekhura cultivars were distinguished by the content of
vitamin C – 9.0 mg% and 8.5 mg%, respectively. At the end of the preservation,
we defined the weight loss and the degree of damage caused by fungi and other
physiological diseases. the
cultivar Meretula showed the biggest weight loss – 5.4%, and the Georgian
Sinapi the smallest weight loss – 3.6%.
The Meretula was the most damaged by fung uous diseases, while the Georgian
Sinapi - the least damaged. By the skin
darkening, the Georgian Sinapi was the most
distinguished – 25.6%, while the Shampanuri Reneti was characterized by
the pulp darkening.
Keywords: apple fruit, preservation, storage, quality.
Summary
Some systems of energy supply of
cells
Kalichava G.S.
Agricultural
Some systems of energy supply of living cells are discussed. It is stated that for efficient therapeutic effect on the energy supply system of cells, it is essential to reveal the character of their affection both at a wide physiological level and at the submolecular level. The emergence of paramagnetic centers, which play an active part in the second photosystem is demonstrated.
Keywords: cells, energy supply, affection, photosystem.
SUMMARY
INFECTIOUS SPOTTING OF DECIDUOUS
Kanchaveli Sh.S. and Keshelava R.P.
L. Kanchaveli Institute of Plant Protection
Infectious spotting of deciduous forest species is caused by various fungi and sometimes by bacteria. The leaf spotting is found in almost all deciduous species and constitute a threat mainly to young plants. The protective measures consist in collecting and burning the dead leaves, as well as in preventive summer spraying of trees in arboreta and young trees with 1% copper oxychloride suspension or 1% copper vitriol solution (Bordeaux mixture).
Keywords: deciduous forest trees, leaf spotting, protective measures.
SUMMARY
ImPROVEMENTS IN THE BIOLOGICAL METHODS
OF PLANT PROTECTION AGAINST THE COTTONWORM MOTH
Bairamov G.F.
Azerbaijanian
Research Institute of Plant Protection,
The cottonworm moth is one of the most harmful pests for cotton. The schemes of biological plant protection against the cottonworm moth were elaborated. The schemes involved the use of pheromones, microbiological preparations and braconids. The most efficient norm of hanging out the insect traps per hectare was established. The optimal norms of output of braconids were also established. The obtained investigation results were tested on farms by the following scheme: against every generation of the cottonworm moth, in the period of moth flying, pheromone traps at the rate of 9 traps per hectare were hung out. When the number of younger caterpillars reached 10-12 caterpillars per 100 plants, in the second generation, the treatment with microbiological preparation BTB-45 at the rate of 4kg per hectare was performed; against the remained alive caterpillars of medium and older age, the release of brakonids at the rate of 1:5, i.e. one brakonid against 5 caterpillars of cottonworm moth, was performed. The field tests showed high biological efficiency and a better economic effect than the scheme used before.
Keywords: pests, cotton, cottonworm moth, plant protection measures, pheromones, braconids.
SUMMARY
COMPLEMENT OF RICE VERMIN AND PLANT PROTECTION
MEASURES AGAINST MAIN INSECT PESTS IN THE CONDITIONS OF
Mamedova S.R. and Mamedov G.G.
Azerbaijanian Research Institute of Plant
Protection,
Rice has been cultivated in
Kåywords: insect pests, rice, plant
protection measures.
SUMMARY
THE INFLUENCE OF ONE-SIDED FERTILIZATION ON THE
CHEMICAL PROCESSES RUNNING IN THE PRODUCTS PRESERVED IN HOUSEHOLD CONDITIONS
Kevlishvili M.B., Shildelashvili I.I. and
Gagolishvili M.Sh.
In the work, emphasis is placed on the influence
of one-sided fertilization on the chemical processes running in preserved
vegetables. By the one-sided fertilization is meant fertilizing of soil only
with ammonium nitrate without using phosphoric, potassic and micronutrient
fertilizers.
The mineral forms of nitrogen, including nitrate
one, absorbed by the vegetables grown on the soil subjected to one-sided
fertilization undergo complex transformation in preserved products. As a
result, there are formed aspartic and glutamic acids, and protein as an end
product. The excessive intake of protein may cause the excessive secretion of
Ca from the human organism and/or the amino-acid unbalance. It is shown that
the risk of formation of both chemical (nitrate, nitrite, nitrosamines atc.)
and bacterial toxins in vegetable preserves made in household conditions is
high.
Keywords:
fertilization, chemical
processes, preserved products, vegetables, nitrates.
The
Effect of non-traditional raw materials on the quality of boiled dough and
convenience foods
Kipiani A.V., Tavdidishvili
D.R., Khutsidze Ts. Z., Minadze N.M. and Beshkenadze T.G.
Abstract. With the aim of improving the process of
production of boiled dough, the effect of vegetable additives and frothers on
the dough structure and the quality of baked half-finished products was
studied. It was established that the addition of 10% of corn flour and 6% of
squeezed citrus puree (in relation to the total weight of flour) and the
substitution of the tea brew and beetroot cocktail for 20% of the egg white
improved the structural-mechanical properties of the boiled dough and
half-finished products, providing the production of high-nutritive and
low-calorie goods.
Keywords: boiled dough, corn flour, squeezed citrus
puree, vegetable frother.
SUMMARY
prediction of the
Strength of fastening of the sole to the top
of footwear for servicemen
Karkashadze M.I., Maglakelidze T.A. and Shanidze
The
basic functional purpose of special footwear is connected with the protection
of person’s feet from unfavorable environmental effects. The selection of the
footwear design and the materials for its components, and the methods of fastening of the sole to the
top are determined by a specific character of wearing. Some kinds of special
footwear for servicemen are often worn under extreme conditions with
simultaneous intensive influence of different factors (mechanical multicycle
load, the action of chemical reagents, ultraviolet radiation etc.), which can
lead to deterioration of the protecting functions of footwear or its
destruction. For more comprehensive evaluation of strength indices of thread
seams, the technique of additional tests, taking into consideration the
technique of additional peculiarities of footwear assemblage and its subsequent
wearing, was developed. This technique allows making a more comprehensive
technological evaluation of the thread used in manufacture of leather articles
and predicting the strength of thread seams during wearing of the footwear.
Keywords: footwear, leather, sole, top, thread, seam strength, prediction.
SUMMARY
THE STRENGTH INDICES OF THREAD JUNCTIONS AND THEIR DEPENDENCE ON THE SEAM TYPE
Datuashvili M.V., Dolidze N.A. and Lursmanashvili L.G.
The strength indices of thread junctions are discussed. According to the research, it can be concluded that, under the same load, the seam of a certain type has the most strength at the least shift of thread. It is recommended to use this type of seam in production of military uniform for improving its working characteristics.
Keywords: seam, thread junction, strength, military uniform.
SUMMARY
CALCULATION OF THE SAFETY FACTOR
OF TEXTILES FOR TECHNICAL PURPOSES
Vadachkoria Z.A.
Akaki Tsereteli State
University, Kutaisi
The possibilities for using the textiles for production of technical filters are discussed. Three best versions of textiles (by the indices of surface covering, uniformity of the structure, low tensility and high strength) were tested. The schedule of testing of these textiles for their strength is given. For calculating the service life of the filters, it is necessary to calculate the safety factor of the textiles. The relevant formulae are presented.
Keywords: technical textiles, safety factor, strength testing.
SUMMARY
A NEW METHOD OF
DETERMINATION OF THE AGE OF TEXTILE ARTICLES
Gintibidze N.G.
A lot of factors affect the properties of
textile fiber. Among these are the chemical reagents used for textile
treatment, the effect of temperature, light and humidity, rubbing, stretching,
crumpling and many other factors, which may cause changes not only in the
properties of textiles, but in their structure as well. At present, for dating
of the clothes and textiles found in archaelogical excavations, the radiocarbon
method is widely used. However, the obtained results are often the subject of
much controversy. Such is, for example, the case of the Torino Shroud of
Christ. In the present work, a new method of determination of the age of
textile articles is proposed. The
proposed method consists in the simulation of textile degradation and
destruction under the influence of external factors in laborotory, the
investigation of the changes in the structure and properties of the textiles
under study, and the determination of the age of textile fiber by the methods
of mathematical statistics.
Keywords: textiles, age, wearing, external
factors, mathematical statistics.
SUMMARY
DETERMINATION OF THE
PERMEABILITY OF α-, β- AND γ-RADIATION IN TEXTILE FABRICS BY
GAMMA-SCOUT DEVICE
Gintibidze N.G. and
Mardaleishvili Z.Z.
The goal of the present work was the
measurement of radiation permeability in textile fabrics by Gamma-Scout device
and the comparison of the obtained results with the radiation background of the
ambient air. The authors of this article have produced new fiber Fibroin-3,
which, according to theoretical calculations, reduces permeability of solar
radiation. With this in mind, an experiment was performed. Three samples of the
knitted cloth from Fibrion-3 were taken, and the permeability of solar
radiation in them was determined. The measurements were performed on
Gamma-Scout device. The comparative analysis of the permeability of solar
radiation in fabrics of different fibrous structure was performed. It was
inferred that the degree of radiation permeability in fabrics depended on the
thread thickness and the fiber structure.
Keywords: textiles, radiation permeability,
comparative analysis.