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D-DIAGRAMS: A GRAPHIC MEANS FOR DATA DESCRIPTION

V. N. Ogibin, V. H. Shmakov
VANT. Ser.: Mat. Mod. Fiz. Rroc. 1989. Вып.1. С. 3-8.

      We propose a graphic means for complex structure data description. Data organization relies upon three structure types (fetch, direct product, sequence) and three nonstructure types (integer, real, string). For each type, a graphic image is found to match it. Two ways for data representation are examined along with data type definition: the first is to store, the second is to display or to print. Using D-diagrams is exemplified by several real applications.



DETERMINING GROUP CONSTANTS AND ACCOUNTING SCATTERING ANISOTROPY

V. М. Shmakov
VANT. Ser.: Mat. Mod. Fiz. Rroc. 1989. Вып.1. С. 48-51.

      An approach suggested for constant determination is to maintain a number of characteristics in a neutron flow which occurs after the interaction with a target neucleus when the scattering anisotropy is accurately or approximately described. The requirement that a number of associated harmonics in a resulting secondary flow, material breeding properties, energy release and intergroup transition matrix elements should be retained, gives formulae for a generalized transport approximation of scattering anisotropy. Restricting cross-section correction value leads to physically noncontradictory values for intergroup transition probabilities.










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