We consider a nonstationary system of differential-algebraic equations, i.e., the first order ordinary differential equations with variable coefficients and identically singular matrix at the derivative of the unknown...
We develop an algorithmic support for some classes of nonlinear optimal control problems. We propose several algorithms based on the first- and second order necessary conditions for solving optimal control problems wi...
The paper presents two software tools (graphical editor and software package). The editor is designed for the formation of a symbolic description of a mechanical system using the Lagrange formalism. A system of the ab...
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This work is devoted to development of hybrid geoinformation system for making forecasts of possible flooded areas in the downstream water of the Irkutsk hydroelectric station with damages evaluation in conditions of ...
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This work is devoted to development of hybrid geoinformation system for making forecasts of possible flooded areas in the downstream water of the Irkutsk hydroelectric station with damages evaluation in conditions of extreme water content for lake Baikal and for effluents of the Angara river. For 3D model construction of the Angaras bed they used Atlas Map of the Angara River in Irkutsk hydroelectric power station up to 142 km on scale of 1: 10000 General plan of Waterways of the East Siberian basin ", Irkutsk, 1994. Due to lack of a digital model (map), a paper-based map was digitized using vectorizer program Easy Trace 7.99. Depth contours, marks and bank lines were also digitized. To combine the data about land and underwater terrain a specific software was developed using Delaunay triangulation method. The role of data layers in the construction of triangulation is specified. The layers contain information about: land relief, standing water levels, shore lines, underwater topography. Auxiliary triangulation is made according to the data whereof further information is revealed regarding heights levels to which shore contours are attached and in reference to which depths are measured. Hybrid geographic information system allows to simulate different scenarios of flooding and to determine the flood zones with account for underwater and land relief.
The computer-aided engineering software modules for decision-making intelligent systems requires the development of specialized methods, algorithms and software. The use of a model-driven approach that implements the ...
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The article is devoted to multiple circle covering problem for a bounded set in a two-dimensional metric space with a given amount of circles. Such statements arise in the construction of global navigation systems lik...
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This paper addresses a nonconvex optimization problem where the cost function and inequality constraints are d.c. functions. Two special local search methods based on the idea of the consecutive solution of partially ...
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We propose a hybrid approach, based on the combined use of genetic algorithms, methods and heuristics of local search, and ant colony optimization to solve the dynamic routing problem for a group of underwater robots....
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An optimal control problem for a system of one dimensional hyperbolic conservation laws is considered. The system is controlled through the boundary condition, which depends on the state of a nonlinear controlsystem....
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The paper studies a multivariate nonlinear regression-tensor model in the substantiation of necessary and sufficient conditions of the optimal multifactorial process of precision calibration of the parameters of the e...
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