Since 1978
Published in Sarov (Arzamas-16), Nizhegorodskaya oblast

RUSSIAN FEDERAL
NUCLEAR CENTER -
ALL-RUSSIAN RESEARCH INSTITUTE
OF EXPERIMENTAL PHYSICS
 
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COMPUTER KERNEL OF THE ACCOUNTING AND CONTROL SYSTEM FOR NUCLEAR MATERIALS

V.I. Vlasov, S.S. Zhikharev, R.I. Ilkaev, N.M. Mikiichuk, E.E. Santalova, I.D. Sofronov, O.N. Tazetdinov, V.N. Tsvetkov, V.A. Tsukanov, V.I. Yuferev
VANT. Ser.: Mat. Mod. Fiz. Proc 1996. Вып.1-2. С. 3-10.

      The description is given for the central subsystem (computer kernel) of the demonstration model for nuclear material control and accounting system (MC&A).
      
      The local area network structure is described, the basic requirements and functions of the computerized MC&A system are presented for the choice of basic software, the content and functions of the applications are shown, a brief description is given for the structure of the basic database.
      The software developed for the demonstration model allows to implement I he majority of functions and requirements needed for accounting and control of nuclear materials and serves good base for the creation of the MC&A system tailored for the actual use.



ADAPTIVE DIFFERENCE GRID GENERATOR AND INITIAL APPROXIMATION PROBLEM FOR TIIE GRID CONSTRUCTION IN COMPLEX DOMAIN

R.N. Antonova, G.P. Prokopov, O.I. Sofronova
VANT. Ser.: Mat. Mod. Fiz. Proc 1996. Вып.1-2. С. 84-90.

      The adaptive grid generating algorithm for solving unstable problems of mathematical physics is suggested. Each step of this algorithm begins from the calculation of the shift of the interior nodes of the grid by means of interpolation formulas using the values of the shift of boundary nodes. The addition of the shifts to the coordinates of nodes of the grid on the previous timestep gives the initial grid for the next timestep. From the latter grid the iteration process minimizing some variational functional starts. As an illustration two examples of conversion from the simple domain to the domain having form for which interpolation formulas give unacceptable grid are considered.










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