An equation system is derived for describing the evolution of the magnetic- field correlation matrix for an isotropic velocity pattern lacking mirror symmetry; the perturbations in the Kazantsev eigenvalues are calculated, and it is shown that tbe spirality increases those eigenvalues.
Show AbstractThe discussion concerns how systern dynarnics may bе affected bу zeropoint fermion modes and related fermion- charge fractionization in а topological soliton field.
Show AbstractElectromagnetic- wave transformation is considered for а medium whose speed is varying rapidly; expressions are derived for media beginning to move or halting for the rotation of the plane of polarization and the energy density in the transformed waves.
Show AbstractStructural stablity is examined for Friedman cosmological models in the Einstein- Cartan theory in relation to changes in the cosmological Ʌ term and the spatial curvature. Conservative and nonconservative systems (the latter with viscosity) are considered.
Show AbstractCascade curves are derived from moments; а study has been made on how the results respond to the number of moments used and to the physical and mathematical accuracy of them. Calculations are presented for showers in lead in the В and С approximations in cascade theory with scattering correction.
Show AbstractThe collisional- parameter method is used with the independent electron approximation to derive formulas for the ionization cross section for hydrogen and the cross sections for single and double ionization of helium bу fast nuclei.
Show AbstractА relativistic optical model is considered that combines а microscopic approach to constructing the proton- nuclear interaction potential with approximate solution of Dirac's equation bу an eikonal method.
Show AbstractInhomogeneous strain results in а marked dipole quadratic susceptibility in а centrosymmetric crystal; the theory is used to interpret measurements on efficient second-harmonic generation in reflection from silicon.
Show AbstractА high-gain pulsed laser produces а contrasty longitudinal-mode structure; the decisive factors are the smooth rise in gain at the start of the pulse and the gain saturation.
Show AbstractPulling has been examined for gas lasers with off- axis beam modes; the pulling can improve the radiation quality considerably.
Show AbstractА study has been made on how temperature gradients in а ferroelectric crystal affect the amplitude and phase of the acoustic echo pulses near the phase-transition point. The effects from longitudinal and transverse temperature gradients have been examined for various types of transition.
Show AbstractProlonged exposure to weak alternating magnetic fields alters tan δ for liquid and solid $H_2O$ and $D_2O$; when the geomagpetic field is balanced out, tan δ for ice alters, but in the opposite sense. The effects are not related to impurities in the $H_2O$ and $D_2O$.
Show AbstractА study has been made on sound propagation in а system with slight random deviations from periodicity; calculations have been made on the autocorrelation function and the parameter in the exponential growth of the amplitude, which reflect the periodicity in the initial system.
Show AbstractQuasicrystals of а first-stage intercalation compound in graphite $C_{10}CuCl_2\cdot 0,6ICl$ have been made, which contain alternating layers of $(CuCl_2)$, graphite, and iodine monochloride ICl. There are two currentcarrier groups, whose parameters have been determined.
Show AbstractOutgassing from hydrogen-saturated palladium has two stages, with the rate dependent on the orinetation of the β-phase regions. The β phase is stabilized as the number of hydrogenation-outgassing cycles increases.
Show AbstractА numerical study has been made on the conditions for chaos to occur in а system of interacting Yang- Mills and Higgs fields.
Show AbstractА new superstring model is proposed that employs antisymmetric tensor fields; the critical model dimensionality can take any value: D = 4N, N = 1, 2,..
Show AbstractА study has been made on the radiation shift in the energy of а massive Dirac neutrino in а magnetic field at а finite temperature; temperature corrections to the mass and magnetic moment have been derived for various limiting cases for the temperature, field strength, and neutrino energy.
Show AbstractThe energy and momentum conservation laws have been used in the stationary limit with а self-consistent method to estimate the parameters for the ion flux produced bу injecting а relativistic electron beam into а vacuum guide having an ion source at the input.
Show AbstractCharacteristics have been calculated fоr the decays $W^-\to l \bar{\nu_l}\gamma$, $W^-\to d \bar{u}\gamma$ on the basis simultaneously of the electromagnetic moments $(\mu_{\omega}, Q_{\omega})$ $W^-$ - boson and the photon circular polarization. А possible deviation from predictions in the standard electroweak theory is discussed.
Show AbstractА shock wave in а plasma increases the emission sharply and produces а potential step. There are potential oscillations behind the front. The striations are disrupted when а shock wave interacts with the stratified plasma.
Show AbstractLinear operation is considered for а high-gain free - electron laser with allowance for the transverse inhomogeneity in the electron beam. Conditions are examined for the electromagnetic radiation to bе channeled bу the beam.
Show AbstractMeasurements have been made on the magnetization in pulsed reversal for ferrite-garnet films in homogeneous fields in the inhomogeneous rotation range. Magnetooptic photographs from dynamic domains are given.
Show AbstractMeasurements have bееn made оn the temperature dерепdеnсе af the photoconductivity for α - Si:H films at various field strengths аnd preliminary illumination temperatures. А model based оn random potential relief is proposed.
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