Photoconductivity under relaxation conditions. Part 3
Photoconductivity under relaxation conditions. Part 3
Yu.P. Drozhzhov
Lux-ampere and temperature curves have been derived for the photoresponse under conditions of high-intensity illumination and relaxation conditions.
Show AbstractA spherically symmetrical model for elliptical galaxies in binary systems. Part 1. Observations and model parameters
A spherically symmetrical model for elliptical galaxies in binary systems. Part 1. Observations and model parameters
V.V. Demin, M.V. Sazhin
Karachentsev's catalog of isolated pairs in the northern sky has been used to examine the features of a sample of double galaxies of EE type. If the members of the pairs are elliptical or lens-shaped galaxies, one can determine the average values for the kinematic and dynamic characteristics. For systems having components of EE and E-SO types one can calculate the parameters of the limiting zero-velocity surfaces within the framework of a restricted three-body problem for the spherically symmetrical case of the density distribution in the companions. The results are presented as preliminary.
Show AbstractSimulating charged-particle fluxes along the paths of space probes in the Earth's radiation belts
Simulating charged-particle fluxes along the paths of space probes in the Earth's radiation belts
O.I. Savun, B.Yu. Yushkov
A method is considered for using a computer to derive the omnidirectional electron and proton fluxes from the initial data set for a wide class of space-probe paths in the Earth's radiation belts over the energy range from 0.1 to 400 MeV for protons and from 40 keV to 4 MeV for electrons; allowance is made for the phase of the solar cycle. Integral proton and electron spectra may be derived for the days of flight, which can be used in calculating absorbed radiation doses behind various forms of shielding in a given orbit. Data are given on the electron fluxes at low levels.
Show AbstractEffects of adsorption on the absorption spectra of solutions of polyatomic organic compounds
Effects of adsorption on the absorption spectra of solutions of polyatomic organic compounds
L.Yu. Gorbunova, B.D. Ryzhikov, N.R. Senatorova
Aqueous solutions of rnodamine 6G have been used to show that one can determine the spectra of dyes and other polyatomic organic compounds correctly only if allowance is made for adsorption at the surface of the solution. The criterion is given for making the corresponding corrections and a method for compensating for surface effects.
Show AbstractSynthesis of multilayer optical coatings with allowance for dispersion and absorption
Synthesis of multilayer optical coatings with allowance for dispersion and absorption
N.V. Grishina, A.V. Tikhonravov
A variational formula is used in the synthesis of multilayer optical coatings with allowance for dispersion and absorption. A study is made of the influence of these factors on the synthesis and on the spectral parameters of the synthesized systems.
Show AbstractThe selective action of xenon on the violet cyan system spectrum
The selective action of xenon on the violet cyan system spectrum
I.S. Lakoba, P.M. Lozovskii, S.P. Chernov, P.B. Essel'bakh
Emission spectra have been recorded from a plasma produced by a fast discharge in the vapors of $CH_3CN$, $BrCN$, and $C_2N_2$ and mixtures of these with He, Ne, Kr, and Xe. It is found that the xenon produces a substantial change in the intensity distribution in the violet cyan bands, which are altered in structure. The effect is interpreted on the assumption of the formation of (XeCN)* complexes, which are formed because of intersection between the bound and repulsive potential surfaces in the Xe-C-N system.
Show AbstractSeparating the Earth's shell into mineral fractions
Separating the Earth's shell into mineral fractions
M.V. Avdulov
A physical model is examined for the separation of the Earth's shell into mineral fractions at a temperature below the rock solidus temperature. The model is based on concepts of approach between crystals pulsating during polymorphic transitions during periodic temperature changes. Equations are given for the kinetics of the crystal motion under Bjorknes forces. The physical nature of the periodic temperature changes is considered.
Show AbstractNumerical solution of free-boundary problems in Josephson-junction theory
Numerical solution of free-boundary problems in Josephson-junction theory
P.N. Babishchevich, S.A. Vasenko, V.K. Semenov
A numerical method has oeen devised for solving nonlinear problems involving free boundaries that occur in the theoretical consideration of large Josephson junctions. The effective numerical algorithm has been based on the penalty method. The numerical solution to the initial nonlinear problem is compared with the exact solution for the case of axial symmetry, where the analytic solution is known.
Show AbstractQuantum statistics and temperature effects in the theory of the interactions of fermions with torsion
Quantum statistics and temperature effects in the theory of the interactions of fermions with torsion
A.A. Gvozdev, P.I. Pronin
An immediate extension of Einstein's theory (the Einstein-Cartan theory) is used for the case of only spinor torsion-field sources to examine finite-temperature effects in the interaction of torsion with fermions.
Show AbstractParametric spin-wave excitation in a fine-grained polycrystalline garnet
Parametric spin-wave excitation in a fine-grained polycrystalline garnet
E.V. Lebedeva, M.K. Rodionova, N.S. Sedletskaya, M.A. Kharinskaya
A study has been made of the effects of the inherent losses $\Delta H_{k_{in}}$ in the anisotropy field and of the pumping frequency on the dependence of the spin-wave excitation threshold on the grain size $l$ for substituted yttrium-aluminum garnets. It is shown that the minimum threshold is proportional to $\sqrt{\Delta H_{k_{in}}^2+(A/l)^2}$ where A is the parameter dependent on the material and pumping frequency. The effects of the grain size on the threshold increase as the pumping frequency decreases. As the anisotropy field decreases, one finds an appreciable effect of the grain size on the threshold only for $l\le 2$ $\mu$m.
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