Begell House Inc.
Journal of Automation and Information Sciences
JAI(S)
1064-2315
42
3
2010
MIKHAIL ZAKHAROVICH ZGUROVSKY
1-2
10.1615/JAutomatInfScien.v42.i3.10
On January 30 scientific and pedagogical community celebrated jubilee of Mikhail Zakharovich Zgurovsky, well-known scientist in the field of systems analysis and its applications academician of NAS of Ukraine, rector of the National Technical University "Kiev Polytechnic Institute".
Identification of Thermostressed State of a Compound Hollow Sphere
3-29
10.1615/JAutomatInfScien.v42.i3.20
Vasiliy S.
Deineka
V. M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kyiv, Ukraine
Ivan V.
Sergienko
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kyiv, Ukraine
gradients of functionals-discrepancies
explicit expressions
identification
gradient methods
parameters
problems of thermoelastic deformation
compound hollow sphere.
We represent explicit expressions for gradients of functionals-discrepancies for identification by gradient methods of different parameters of problems of thermoelastic deformation of a compound hollow sphere.
General Approach to Solving Optimization Problems in Distributed Computing Systems and Theory of Intelligence Systems Construction
30-46
10.1615/JAutomatInfScien.v42.i3.30
Sergey V.
Listrovoy
Ukrainian State Academy of Railway Transport, Kharkov
Sergey V.
Minukhin
Kharkov National University of Economics
distributed computer systems
discrete optimization
graph theory
parallelization of computational processes
Universal procedures for solving a wide range of discrete optimization problems which can be efficiently parallelized on the basis of cyclic parallel computing structures are proposed. The problem solution is based on the idea of the space of possible solutions of problems of discrete optimization and graph theory in the form of the contracted tree of all paths. Extreme paths formation on the layer of the tree can be carried out simultaneously enabling effective parallelization of computational process to be organized. The analysis of possibilities of using the proposed generalized procedures for constructing intelligent computing systems is performed.
Necessary Optimality Conditions of Second Order in Classical Sense in Optimal Control Problems of Three-Point Conditions
47-57
10.1615/JAutomatInfScien.v42.i3.40
Magomet Farman ogly
Mekhtiyev
Baku State University, Azerbaijan
Shamo Isakh ogly
Djabrailov
Baku State University, Azerbaijan
Yagub Amiyar ogly
Sharifov
Baku State University, Institute of Cybernetics of National Academy of Sciences of Azerbaijan
optimal control problem
second order optimality
three-point boundary condition
bounded and measurable functions
Consideration is given to an optimal control problem in which the condition of the system is defined from controlled systems of ordinary differential equations with three-point boundary conditions. Admissible controls are chosen from the class of bounded and measurable functions with values from an open set. The necessary conditions of optimality for singular controls in a classical sense are obtained based on control variations.
Nonlinear Mathematical Model of Two-Level Transfer of the "Filtration−Consolidation" Type
58-70
10.1615/JAutomatInfScien.v42.i3.50
Dmitriy M.
Mykhalyk
Ternopol Ivan Pulyui State Technical University, Ukraine
Mikhail R.
Petryk
Ivan Puluj Ternopol National Technical
University, Ternopol
nonlinear mathematical model
mass transfer
"filtration–consolidation"
medium of moisture saturated particles
microporous structure
numerical modeling
pressures
micropores of interparticle space
micropores of particles
profiles of dependencies on time
consolidation
We construct nonlinear mathematical model of mass transfer of "filtration−consolidation" type in medium of moisture saturated particles of microporous structure with application of linearization methods and the Fourier and Laplace integral transforms. Numerical modeling is performed and distribution of pressures in micropores of interparticle space and in micropores of particles, as well as profiles of dependencies of consolidation factors on time and position coordinates.
Estimation of Latitudinal Drift and Differential Rotation of Disbalance Flow of Magnetic Field on the Sun on the basis of Observations
71-84
10.1615/JAutomatInfScien.v42.i3.60
Yarema I.
Zyelyk
Institute of Space Research of National Academy of Sciences of Ukraine and National Space Agency of Ukraine, Kyiv, Ukraine
Nataliya N.
Stepanyan
Research Institute "Crimean Astrophysical Observatory" of Ministry of Education and Science of Ukraine, Crimea, settlement Nauchnyi of Bakhchisaraiskiy region
Olga A.
Andryeyeva
Research Institute "Crimean Astrophysical Observatory" of Ministry of Education and Science of Ukraine, Crimea, settlement Nauchnyi of Bakhchisaraiskiy region
observation data
magnetic fields on the Sun
26-year time interval
correlation and spectral analysis
time series
separated latitudinal zones
latitudinal drift
disbalance flow of magnetic field
differential rotation
magnetohydrodynamic
On the basis of observation data of magnetic fields on the Sun on
26-year time interval in the result of correlation and spectral analysis of time series, which were formed in separated latitudinal zones, we estimate latitudinal drift of disbalance flow of magnetic field on the whole and differential rotation and latitudinal drift of components of disbalance flow with definite significant periods of rotation. We form the picture of evolution of disbalance flow of magnetic fields, information about which may be used on creation of magnetohydrodynamic models of global flows of the Sun and for their verification.