[en] Numerical experiences are made to investigate non trivial solutions, for t→∞, of a parabolic nonlinear problem, with initial and boundary conditions, and verify the concordance with the corresponding nonlinear elliptic (or stationary) problem. The model studied belongs to nonlinear diffusion problems and it is represented by a parabolic equation, linear in the diffusion operator, and a reaction function f(u) = u(a-bu). They are referred to as semi linear equations. The a and b coefficients involve parameters and considerations of interest in neutronic flux. Thus it is reasonable to search for non trivial, positive and bounded solutions. (author)

[en] The document includes 6 papers on the measurement, calculation and evaluation of neutron reactions cross-sections. Refs, figs and tabs

No abstract available

[en] Abstract only

[en] Based on a critical analysis of experimental data as well as nuclear reaction models calculations available, the most accurate theoretical frame for bach of the neutron induced reactions presented in part I is concluded. In the context of theoretical estimation of neutron cross-sections, several codes of prime importance are briefly discussed. (author)

[en] CINDA, the Computer Index of Neutron Data, contains bibliographic references to measurements, calculations, reviews and evaluations of neutron cross-sections and other microscopic neutron data. The present issue, CINDA-A (1935-1987) vol. 5, is an index to all work on neutron nuclear data from the time of the discovery of the neutron until the end of 1987, for the elements 84 Polonium to 105 Hahnium. It is supplemented by the current issue, CINDA 90, which covers the references from 1988 to 1990

[en] A systematics is recommended to obtain the parameters for describing (n,2n) excitation functions by the constant temperature Weisskopf formula. (author)

[en] A method is suggested of a search for nonstatistical regularities in behaviour of the radiative strength function of primary gamma-transitions from the (n,gamma) reaction

[en] Indexes to the neutron-induced interaction data in the Experimental Cross Section Information Library (ECSIL) as of July 4, 1976 are tabulated. The tabulation has two arrangements: isotope (ZA) order and reaction-number order

No abstract available