Calculation of the magnetic dipole constant of the hyperfine structure of the 6 S 5/2(3d 54s 2) term in the atomic spectrum of manganese

The contributions of spin polarization, valence correlations, and relativistic effects to the magnetic dipole constant of the hyperfine structure of the ⁶ S _5/2 (3d ⁵4s ²) term in the atomic spectrum of manganese are calculated and analyzed by the configuration interaction method and in the framework of the perturbation theory.     

Field evaporation of carbonized molybdenum

Field evaporation of a carbonized molybdenum crystal is studied using an atomic probe. In the flow of ions being evaporated, various radical ions containing Mo and C, as well as pure Mo ions, are observed. Analysis of mass spectra of field evaporation and corresponding accumulation curves leads to the conclusion about the composition and complex ordering of the surface layers of the crystal.     

Branching equation of Andronov-Hopf bifurcation under group symmetry conditions

In branching theory of solutions of nonlinear equations group analysis methods [Ovsyannikov, Group Analysis of Differential Equations (Nauka, Moscow, 1978); Lectures on the Theory of Group Properties of Differential Equations (Novosibirsk University, Novosibirsk, 1966)] give the general approach for the construction of the complete form of branching equation and its subsequent investigation. These methods are applied here to the general situation of Andronov-Hopf bifurcation when there are some multiple semisimple eigenvalues on imaginary axis. (c) 1997 American Institute of Physics.     

Calculation of eigenvalues and eigenvectors of bounded operators by the false-perturbation method

M. K. Gavurin proposed (RZh Mat. 4B383, 1962) an iteration method based on the theory of perturbations for finding the eigenvalues and eigenvectors of linear operators. The method was developed later by F. Kunert (RZh Mat. 5B815, 1968). In the present note, using results of V. A. Trenogin (RZh Mat. 1B706, 1970), this method is extended to problems of the form (A-B)=0.Translated from Matematicheskie Zametki, Vol. 19, No. 1, pp. 105–108, January, 1976.     

Simulating the experimental vacuum ultraviolet radiation of rare-gases plasma

Experimental excimer continua emitted by electric discharge plasma of krypton and xenon were interpreted as the ¹ Σ _u ⁺ → ¹ Σ _g ⁺ bound-free transitions. The relative populations of the lower vibrational levels of the ¹ Σ _u ⁺ state were derived fitting experimental spectra with the theoretical ones.     

Fluoropolymers as materials for chemical protection of equipment and pipelines

Will Presented short feature PTFE to product and Russian Producers PTFE. They are shown advantage of chemical protection of the equipment and pipe line PTFE, ways of chemical protection and order of the granting PTFE services by company “Ninth Element” Ltd.     

Topology of PbSnTe:In Layers Versus Indium Concentration

Technical Physics - The surface topology of epitaxial films of lead tin telluride solid solution (including with In additive, Pb1 – xSnxTe:In) has been examined using atomic force microscopy....