Summary
FormulAe of eXtrapolations and filtration of Partially observed
solutions of quasilinear equations with random disturbance: part II
Sokhadze G.A.
A.
General differential equations with nonlinearity and
random additive disturbance are discussed. In the case of existence of the
solution to such an equation, it is demonstrated how to calculate the prediction
formulae in the unobserved area by partial observations. The examples are
offered.
Keywords: differential equation,
random disturbance, density of measures, prediction.
Summary
Radon-NikodYm derivative for shredinger-type equations with random
disturbance
Sokhadze G.A.
A.
Many problems related to nonlinear Shredinger-type
equations can be reduced to linear ones. In this case, the conversion is
performed with the help of density of measures. Explicit formulae for such
density are given.
Keywords: Radon-Nikodym derivative,
Shredinger equation, random disturbance.
Summary
A notice about the application of the results on absolute continuity
of measures to the computation of the logarithmic derivative
Gubeladze A.K.
and Sokhadze G.A.
T.
A.
The possibility of application of Radon-Nikodym
derivatives to the computation of the logarithmic derivative of “complex
measure” is demonstrated.
Keywords: Radon-Nikodym derivative,
logarithmic derivative, measure in linear spaces.
SUMMARY
Theoretical computation of the spectra of complex ionized elements:
The isoelectronic sequence of Zn-Like ions
Tsirekidze
M.A. and Kokrashvili T.A.
The theoretical computation of energy levels of the
Zn-like isoelectronic sequence for nuclei charges z=44-50 is discussed. For
computation, the relativistic theory of disturbances with the model potential
was used.
Keywords: spectra, ionized elements,
isoelectronic sequence, Zn-like ions, computation.
Summary
Kinetics of intercombinational electron transfer in triplet
exciplexes with the hydrogen bond
Kokrashvili
T.A., Chabukiani L.V. and Kokrasvhili G.T.
There were obtained the velocity constants of
intercombinational electron transfer in polar triplet exciplexes of quinones
with primary and secondary aromatic amines. Their relations with the energy of
triplet exciplexes with the hydrogen bond and the stability of this bond were
revealed.
Keywords: triplet, triplet exciplex,
kinetics, electron transfer, hydrogen bond.
SUMMARY
Kinetics of proton transfer in polar triplet exciplexes
Kokrashvili
T.A., Chabukiani L.V. and TsirekidzeM.A.
At quenching of triplet states
of acceptors, the values of velocity constants of proton transfer in triplet
exciplexes are determined by the energy of the process to a great extent. The
increase in acidity RH+∙ or basicity A-. is
accompanied by the increase in kpt.
Keywords: triplet, polar triplet
exciplex, kinetics, radical ions, proton transfer
Summary
Irradiation Intensity Impact on the Injection of deep acceptor centers in
n-Si
Pagava T.A.,
Kharashvili O.G., Maisuradze N.I., Khasia N.I. and Kharshiladze N.Sh.
The effect of the free electron concentration (N) and the electron flux
density (j) on the formation of
radiation defects in n-type silicon samples is investigated. It is supposed
that the optimum correlation exits between the quantity of primary
radiation defect and the amount of free electrons charging them. This results
in the maximum observed in the h(j) curve, the
localization of which (along the j axis)
depends on the free electron concentration.
Keywords: n-Si crystals, radiation
intensity, production efficiency of radiation defects.
SUMMARY
Computation of heat resistance of the sphere
with contact areas at complex boundary conditions
Kevkhishvili N.A. and Natsvlishvili T.Sh.
The results of analytical
solution of the boundary problem for the sphere with complex boundary
conditions are presented. With the help of the function of complex variable,
the second-kind boundary conditions were substituted by the first-kind boundary
conditions. Then, by integrating the
Keywords: sphere, contact area, heat
resistance, boundary conditions.
Summary
The dependence of acceptor concentration on the speed of growth and the ultrasound field
Kutubidze B.V.,
Chikovani R.I., Mkheidze T.D., Goderdzishvili G.I. and Janelidze O.M.
The model of dependence of complex concentrations is presented. For
instance, the
-
type acceptors in undoped layers
GaAs and InP depend on the speed of growth and the ultrasound field of
the excited deep center of the base. The speed of growth is defined by the
level of excitation of deep centers and the molecules of vapour -gas phase,
which depends on the localization of longitudinal acoustic oscillations of the
atomic lattice.
Keywords: concentration of
acceptors, speed of growth, ultrasound field, dependence.
Summary
Determination of the ionization energy of deep scattering centers by
the method of low temperature impact ionization
Kutubidze
B.V., Chikovani R.I., Mkheidze T.D., Goderdzishvili G.I. and Janelidze O.M.
There is offered the method of determination of the ionization energy
of deep scattering centers by the method of impact ionization at 77K.
Keywords: ionization energy, deep
scattering centers, low temperature impact ionization.
cesium
on the tungsten coating of niobium-zirconium alloy oxidized
at
550-13000C
Zykov B.M. and Nardaia Y.I.
I. Vekua Sukhumi Institute of Physics and Technology
The results of the
investigation of oxygen films and binary oxygen and cesium films on the
gas-phase polycrystalline tungsten coating of NB-1%Zr alloy demonstrated that
such a coating possesses rather the properties of W-Nb alloy than of pure W.
All the specific features distinguishing this coating from the homogeneous one
are. related with the diffusion of Nb onto the surface. With account for oxygen
which is not removed till the temperature reaches 18000C, on smooth
and the most perfect areas of the lower level, there exits at least three-level
relief of the substrate of the film of intermetallic suboxide Nb2W2O.
Such a film, which has a three-dimensional structure with maximum saturation of
metal-oxygen chemical bonds, prevents both further segregation of Nb on the
surface and further oxidation of Nb and also W which is not bound to Nb, i.e.
it leads to formation of heat-resisting coating.
Keywords: tungsten coating,
niobium-zirconium alloy, cesium, oxidation.
SUMMARY
Warming-up of the cesium film on the TungstEN coating of
niobium-ZiRconium alloy OXIDIZED AT 550-13000C
Zykov B.M. and
Nardaia Y.I.
I. Vekua
Sukhumi Institute of Physics and Technology
Despite the fact that the film of Nb2W2O
itself is optimal for cesium, the presence of carbon and W2C, which
cannot be removed, in the material of the specimen and CO and COCs they form
with oxygen and oxygen and cesium, respectively, causes the formation of other
nonoptimal compounds with cesium: NbCOCs – at the lower level of the
relief and W2COCs – at the upper one. These compounds have
almost the same heat resistance as the optimal film of sub-bronze NbW2OCs
at the lower level. As a result, φmin with Cs becomes by 1.6 eV higher that that for pure
monocrystalline W, Nb and Mo-Nb alloy. What this means is the thermion
collector (TIC) from this material can operate maximum 50 percent of its
capacity in spite of stability of basic properties of the films with Cs in wide
temperature ranges of oxidation and warming-up. Hence it is necessary to take
measures for decreasing the amount of carbon in the material which the TIC is
made from in order to improve its efficiency.
Keywords: tungsten coating,
niobium-zirconium alloy, cesium, oxidation, warming-up, thermion collector.
SUMMARY
SULFONAMIDE-2,6-DIMETHOXYPYRIMIDINE
Miminoshvili E.B., Ediberidze
D.A.,
Miminoshvili K.E. and Zazashvili S.R.
Iv.
There was studied the structure of 4-p-aminobenzene
sulfonamide-2,6-dimethoxypyridine (sulfadimethoxine) =
С12Н14N4О4S; (а=7.961(2);
b=9.322(2); c =10.425(2)Å, α=93.48(3)º; β=95.39(3)º;
γ=114.09(3)º; T = 293K, P 
, Z=2;
R(F)= 0.050). The compound is
formed of sulfadimethoxine
molecules. The geometric parameters of hydrogenic bonds were determined.
Keywords: molecular
structure, sulfadimethoxine, X-ray structure analysis.
SUMMARY
THE EFFECT OF
MEASURING INSTRUMENTATION ERRORS ON SOME PROPERTIES OF SECOND-ORDER ASYMMETRIC
DESIGNS
Zedginidze
I.G. and Beraia N.O.
For determination of factor levels in accordance
with the design, various instruments, having this or that inaccuracy, are used.
The effect of the most typical errors on some properties of second-order
asymmetric composition designs for two, three and four variables were studied.
In particular, there was studied the abovementioned effect on the designs which
are the closest to the optimal ones from the standpoint of the minimum of
maximum dispersion of parameter estimations and the minimum of dispersion
variations of parameter estimations. The mechanism of simulation of various
errors and their superimposement on the corresponding coordinates of the
designs is described. By each of the criteria for different number of the
factors under study, the corridors of errors were determined. It is
demonstrated that as the error increases, the arithmetic average and the spread
in values change. Based on the investigation results, it was inferred that it
is possible to determine the optimum value of the “star” arm with
less accuracy: not with three places after the point, as it usually takes place,
but using only one or two places after the point. It is demonstrated that round
off to the nearest tenth in the case of two factors under study makes the
asymmetric composition designs be closer to the optimal ones from the
standpoint of both criteria considered.
Keywords: experiment design,
second-order asymmetric design, instrumentation error
Summary
Ion-Selective materials for determination of ion activity
Dolidze A.V.,
Dolidze V.A. and Makhashvili K.A.
Ion-selective materials for determination of the
activity of various ions are discussed.
There is given the classification of ion-selective materials including
electrode glass (alkali silica, chalcogenide and electron-conducting glass),
organic exchangers and neutral
complexones, crystals (mono- and polycrystals), metals, metallic oxides,
inert materials (graphite. glassy carbon etc.), and also semiconductor devices
on the base of carbon, iron and other nitrides.
Keywords: ion activity, electrode
materials, classification.
SUMMARY
COULD THE
RECOGNITION OF THE PARADOX OF DUALITY of
SCIENCE AND RELIGION SERVE FOR CREATION OF THE GENERAL THEORY OF GREAT
UNIFICATION ALLOWING ONE TO EXPLAIN THE UNIVERSE?
Khvedelidze
M.A.
The author of this work presents a brief analysis of
the book Brief History of Time from the Big Bang to Black Holes by
phenomenal English physicist-theorist Stephen W.Hawking (Russian translation,
Moscow,Mir,1990). The goal of the analysis is expressed in the title of the
present work, and, for answering the question posed, the inferences made by
Prof.Stephen W. Hawking himself are cited. There are also cited the ideas
suggested by Prof. Charles Sagan, Cornwell University, the USA, and Prof.
J.A.Smorodinski, Russia, in their prefaces to the book. This justifies the
professional competence of all three physicists-theorists and the author of the
present work, a cybernetist-informationologist, for seeking the answer to the
question posed in the title of the work.
It is beyond question that modern science has
approached the limit of knowledge about the Universe, which was recognized to
be without the beginning and the end in time. Thus, if the man could live till
the state of immortality, i.e. the state of the Superior Mind - the God, as a
result of rather long-term natural selection, his really infinite time and his
boundless labor would allow him to expand significantly the limits of knowledge
about the largest and the most complex system - the Universe. In this respect the
presented analysis seems promising as a
resolution of the next paradox of science and religion, which will be
discussed in the further work.
Keywords: paradox, duality, science,
religion, theory of great unification, the Universe.
Summary
Ball lightning – a problem of science of
fundamental significance
Berria G. N.
M. Nodia Institute of Geophysics
The 9-th International Symposium
on the Ball Lightning has shown once again that this phenomenon constructs a
paradoxical problem for science: almost all is already known about the ball lightning.
About 120 of its elementary properties were established, hundreds hypotheses
were created, but, however, its nature remains to be a mystery. A great number of
known properties and hypotheses allowed conducting the analytical study, and it was established
that the majority of the hypotheses contain anomalies (noncompatibility with the
properties) and, consequently, settle out of the agenda of the challengers to
the solution of the problem. Only a
small part of hypotheses is free from anomalies, they are referred to the
theory of electromagnetic field.
The paradoxical delay of the solution of the problem is explained not by the
complexity of the task, but by its
fundamentality. For its solution, it is necessary to change considerably our
understanding of the structure of the Universe.
Keywords: ball lighting, fundamental problem, hypothesis,
paradox.
On the basis of equilibrium concentrations and corresponding
temperature data, obtained by experiments, a set of equations, which reflects
chemical (volumetric) potentials, was developed. Five-member interaction
coefficients for binary subsystems of Ti-Ni-Cr alloys were calculated by means
of these equations. For the purpose of checking the accuracy of the obtained
values, the theoretical and experimental phase diagrams of Ti-8Ni-Cr- system
alloys were compared. As a result, it was established that the diagram built by
the five-member coefficients of binary interaction is more precise than the one
obtained by the binary coefficients, which exist in the database, and that it
coincides with the diagram obtained experimentally.
Keywords: databases, interaction
coefficients, thermodynamic potential, chemical potential, enthalpy,
entropy, catastrophe theory, phase
diagram, computation model.
SUMMARY
Modeling of the Corrosion Behaviour of Ti-Ni-Cr-System
Alloys
Gozalishvili
E.I., Mikaberidze M.P., Lordkipanidze I.N., Gordeziani G.A., Ramazashvili D.R.
and Akhvlediani
F. Tavadze
Institute of Metallurgy and Materials Science
For modeling of the corrosion behaviour of Ti-8Ni-Cr system alloys there were used the statistical
methods of regression
analysis: fractional factor
experiment 24-1, the Box- Wilson design and the second-order composite-rotatable design. The effect
of chromium content in the alloy, the pH values, the experiment duration and
the temperature of thermal treatment
were studied. An adequate linear model of corrosion rate y=0.1178+0.0636x1-0.081x2,
where only two factors are significant – the chromium content and the
temperature of thermal treatment, were obtained. After the optimization of the adequate
regression equation of second order, a canonical analysis of the response
surface of optimum was performed. By
comparison of the obtained mathematical model with the hardness and the
microstructure of alloys, the optimal composition of the alloy was established.
Keywords: Ti-Ni-Cr alloy, corrosion,
statistical method, modeling.
Summary
SpectroPHotometric determination of small amounts of osmium
Kuratashvili
Z.A., Abdushelishvili I.G. and
Zekalashvili M.G.
For determination of the ultramicroamount of osmium,
the highly sensitive photometric method is selected. The determination of
osmium by this method is carried out with the mixture of reagents (sulfanilic
acid and dimethylaniline) in the nitric acid medium. The proposed method is based
on the catalytic action of osmium. Dimethylaniline reduces nitric acid to
nitrous acid which is determined by
the Griess reaction. The optimum conditions of determining the osmium
were established. A more advanced diagram of analysis was developed on the basis of the
established optimum conditions.
Keywords: osmium, microamount,
spectrophotometric determination.
Synthesis
of graft copolymers on the base of
vinyl-containing
low-molecular
siloxanes and N-allyllactams
Koiava N.A., Vepkhishvili N.G., Janiashvili L.K. and Sidamonidze N.N.
Iv. Javakhishvili
Tbilisi State
University
Tbilisi State
Medical University
Abstract: On the
basis of vinyl-containing low-molecular siloxanes and N-allyllactams, graft copolymers were synthesized, and their
vulcanizates were derived. Some physical properties of the synthesized
copolymers and physical-mechanical properties of the vulcanizates were studied.
.
Keywords: N-allyllactams,
siloxane, elastomers, graft co-polymerization, medical applications.
Summary
About Alkaloid-Bearing of Certain Plants of Compositae Family
Zakirov S.Kh.,
Abdusamatov A., Tsakadze D.M., Baramidze L.V., Kelbakiani L.V. and Kupatashvili
N.N.
Iv.
More than twenty species of Compositae family plants were studied on the content of alkaloids
and lactones. Amongst the majority of these plants, sesquiterpene lactones were
isolated and their structures were determined.
Keywords: sesquiterpene lactones,
isolation, alkaloids.
Algebraic-chemical Investigation of some Dichloranhydrides of
Di-(p-carboxyphenylaryl(alkyl)arsinоxide within the Scoрe of
Quasi-ANB- matrices Method
Gverdtsiteli M.I. and Alavidze T. Z.
Iv.
Abstract. Algebraic-chemical inventigation of some dichloranhydrides of
di-(p-carboxyphenylaryl (alkyl) arsinoxide
was carried out within the scope of quasi -ANB-matrices method. The
correlation equation "structure-property" was derived.
Keywords: dicloranhydride, di-(p-carboxyphenylaryl(alkyl)arsinoxide,
quasi-ANB-matrix.
Algebraic-chemical Investigation of
Liquid Unbranched Alkanes within the
Scope of Quasi-ANB-matrices Method
Gverdtsiteli M.I., Lobzhanidze T.E. and Gverdtsiteli M.G.
Iv.
Abstract. The algebraic-chemical
investigation of liquid unbranched alkanes in the scope of the method of
quasi-ANB-matrices was performed. The structure-properties correlation
equations were derived. The computation showed that the correlation is good.
Keywords: alkanes, quasi-ANB matrix,
correlation equation.
ALGEBRAIC-CHEMICAL
INVESTIGATION OF SOME BARBITURATES WITHIN THE SCOPE OF QUASI-ANB-MATRICES
METHOD
Kupatadze K.T.
Abstract. Algebraic-chemical
investigation of some barbiturates within the scope of quasi-ANB-matrices
method was carried out. The correlation equation was described. The correlation is good.
Keywords: barbiturates, quasi-ANB-matrix, correlation.
SUmmary
Chemical Composition of storm flows in
Dvalishvili
N.L., Supatashvili G.D. and Gurjia Z.G.
Iv.
Georgian
Institute of Hydrometeorology
The macro- and microchemical composition of storm
flows in
Keywords: storm flow, chemical
composition, municipal wastes.
Dual nature of mutual induction inertia
Aburjania A.N. and Begiashvili
V.I.
Georgian Technical University
Dedicated to the Centennial
Anniversary of the Foundation of the
Electrical Engineers
International Commission (IEC –
Abstract. It has been established that, the assumption that Faraday’s emf
is always negative and that it resists the change in the electromagnetic
momentum responsible for its generation is wrong. The mathematical
representation of the law of inertia by the negative sign of emf appeared to be
inadequate for representation of the phenomenon of inertia of mutual induction.
This caused significant inconsistency between the theory and the practice,
which have agitated the scientists involved in electrical engineering all over
the world. The emf of mutual induction is negative at positive magnetic
coupling and, in this case, the
change due to which it was generated. On the other hand, the emf of mutual
induction is positive at negative magnetic coupling and it promotes the changes
due to which it was generated. The negative emf is a manifestation of the law of negation of
the change in the electromagnetic momentum, and the positive emf – of
negation of negation. The negation and the negation of negation are physical
bases of magnetic field propagation and energy transfer. The magnetic coupling
between inducing and induced currents is negative. In the present work, the
base reference system, where the right-hand screw orientation of the loop and
the surface was matched with Ampere’s system, was designed. An adequate
formula for the energy of magnetic field of inductively coupled circuits was
derived. Unique notions of like terminals and mutual induction sign were
introduced. A rule of adequate mathematical modeling was developed.
Keywords: mutual induction, law of inertia,
emf, law of negation, negation of negation.
Negation
and Negation of Negation in Electrodynamics
Aburjania A.N. and
Begiashvili V.I.
Dedicated
to the Centenary of IEC
Abstract. The
conclusions inferred as a result of long-term investigation of the role of the
laws of negation and negation of negation in electrodynamics are presented. It
is demonstrated that the negation and the negation of negation are the physical
bases of magnetic field propagation, energy transfer and motion resumption.
Keywords:
electrodynamics, law of negation, negation of negation, mutual induction, law
of inertia, emf.
ON THE ISSUE of INDEXING IN RELATIONAL DATABASES
Kobiashvili A.A. and
Kutateladze R.G.
Abstract. One of the methods of accessing the data in databases
– indexing is considered. Two kinds of indexing, sequential and direct,
are offered. The advantage of direct indexing is demonstrated by a real
example.
Keywords: indexing, pointer, direct
access, sequential address, inverted lists, dense indexing, nondense indexing.
SUMMARY
Automated
system for the analysis of Electromagnetic situation within radiocoverage
Zurabishvili V.I.,
Kokoshvili V.D., Alavidze M.J., Sivsiva M.R. and Sarjveladze S.V.
There are discussed some problems of the analysis of
electromagnetic situation within radiocoverage, including the development
of new approaches to investigation
and determination of electromagnetic field parameters (EFP) and
sanitary-hygienic conditions in the mentioned area using both theoretical and
practical methods of analysis. The automated system for the analysis of
electromagnetic situation, i.e. for determination of intensity levels of the
electromagnetic field and the flux density and their compliance with the
International Standards is proposed.
Keywords: radiocoverage, electromagnetic field intensity, flux
density, automated system.
Summary
Modeling
problems in frequency-territorial layout of radioelectronic systems
Zurabishvili V.I., Svanidze T.S.,
Kokoshvili M.R. and Kiknadze T.A.
Some problems of modeling in frequency-territorial layout of radioelectronic
systems (RES), including the development
of new approaches to display of designed and operational RES, are
discussed. The problems of display of RES in the form of graphs consisting of
linked and isolated peaks are considered. The basic criteria for choosing the
objects (graph peaks) for their layout among the operating systems are
proposed.
Keywords: radioelectronic system, frequency-territorial layout, modeling.
Summary
On the isolation of the nucleus of monotonous
system on the set of paired bonds
Mgeladze A.P.
The methods of hierarchical
clustering of mutually bound entities are considered and compared. Preference
is given to a new method based on the construction of a so-called monotonous
system. The method does not depend on particular features of the elements of
the matrix of bonds, but it uses direct and indirect bonds. As a result, there
are obtained the nests ranked by the strength of bonding between pairs of
entities.
Keywords: set of paired bonds, monotonous system, nucleus,
clusterization.
SUMMARY
A NEW APPROACH
TO the ESTABLISHMENT OF
ELECTRICITY TARIFFS BASED ON FUZZY SETS
Tsabadze T.V.
Georgian
National Energy Regulatory Commission
This paper introduces a new approach to the
establishment of electricity tariffs based on fuzzy sets. The current status of
tariffication is considered. The necessity in the use of new methods for
tariffication is motivated. A new method for calculation of electricity tariffs
is proposed and discussed in detail, and its algorithm is given. The further
development of the obtained results is outlined. The offered approach may be
used for tariffication of natural gas and many other goods and services as
well.
Keywords: simulation, tariff, fuzzy
sets, coordination index, similarity, fuzzy set.
Summary
Revealing
of errors in the digital communication channel occupied by relevant data
Murjikneli G.G., Modebadze Y.Sh.
and Sulashvili Sh.T.
In a number of works, there have been described some devices for revealing and counting
the errors, which allow measuring the adequacy of digital communication
channels free of relevant data. However such measurements are associated with
compulsory interruption of relevant data transfer, which is rather
inconvenient. In the present work, the communication system in which the
adequacy measurement is performed concurrently with the relevant data transfer
via the channel is proposed. In this case, the method of sequential transfer of
reference and valid signals is
used. The commutation of the channels takes place automatically at certain
intervals (sessions).
Keywords: communication, digital channel, revealing of errors, adequacy, relevant
data.
SUMMARY
The
method of virtual processor in software protection
Kiknadze M.G., Petriashvili L.N.
and Zhvania T.G.
A
method of software protection is considered. The method is based on
transferring the code to be protected into the virtual execution environment.
The efficiency and the drawbacks of the method are discussed. There is proposed
the version of realization which allows reducing the development cost.
Keywords: software, virtual processor, protection.
SUMMARY
Dynamic model of the diagnostic defects of
vibroactive objects at their operation
Abelashvili N.N., Bzhalava M.A. and Kvirkvelia I.O.
A dynamic model of the vibration mechanism of vibroactive objects at the diagnostics of defects in operational conditions