Issue 4, 1988
Asymptotic states in а kink sector
Asymptotic states in а kink sector
К.А. Sveshnikov
А geneгal арргоасh is used with Heisenbeгg - opeгatoг language to deгive the basis stгuctuгe fог fundamental - paгticle asymptotic states in а kink sectoг in а quantum- field system in 1 + l dimensions , which is based on analyzing kink motion гelative to the centeг of ineгtia as а гesult of the гecoil momentum.
Show AbstractThe equation of state for а soft - sphere system
The equation of state for а soft - sphere system
I.Р. Bazarov and Р.N. Nikolaev
The fгee-eneгgy stгuctuгe has been specif ied to impгove the conveгgence in the density роwег seгies; it is shown that the арргоасh is valuable fог а soft-spheгe system.
Show AbstractEfficient real- time spectrum processing with elevated resolution
Efficient real- time spectrum processing with elevated resolution
S.I. Ashkinaze, V.А. Voronov, and Yu.I. Nechaev
Reduction is considered as а means of improving spectrometer resolution on implementation bу а modified digit bу digit method, which involves the use of а special strategy that substantially reduces the processing time.
Show AbstractAsymptotic methods of constructing а numerical algorithm for radiative thin- plate heating
Asymptotic methods of constructing а numerical algorithm for radiative thin- plate heating
V.В. Glasko, А.Yu. Gubar, and А.В. Korshunov
An algoгithm is pгoposed fог гeducing а nonstationaгy quasilineaг one-dimensional tгeatment of the theгmal-conduction equation to simpleг cases. It is shown that such гeduction is possible. А numeгical solution is compaгed with physical measuгements.
Show AbstractRandom- medium scalar- field moment structure
Random- medium scalar- field moment structure
D.D. Sokolov and Т.S. Shumkina
Expгessions have been deгived fог the exponential gгowth гates and eigenfunctions fог огdег р moments fог а scalaг field in а medium showing nonzeгo diffusion. An estimate is made of the cгitical diffusion coefficient fог which self-excitation is possible.
Show AbstractCompound torsion and spontaneous compaction in Kaluza- Klein theories
Compound torsion and spontaneous compaction in Kaluza- Klein theories
Yu.S. Vladimirov and А.D. Popov
Compound torsion enables one to obtain spontaneous compaction in theor ies of Kaluza-Klein type in Minkowski space. The boson part of the superstring Lagrangian is derived from the scalar curvature in а multidimensional theory of Einstein-Cartan type with compound torsion.
Show AbstractEdge and band detectors in mitochondrial- image morphology analysis
Edge and band detectors in mitochondrial- image morphology analysis
I.S. Emel'yanenko, T.Р. Pyt'eva, and V.А. Frolov
Mitochondrial image models have been used with morphological analysis applied to electron-diffraction patterns from subcellular myocardium structures in evaluating pathological heart bioenergetics.
Show AbstractBound states for arЫtrary - isospin scalar particles in the fields of regular monopoles and dions
Bound states for arЫtrary - isospin scalar particles in the fields of regular monopoles and dions
D.V. Gal'tsov and А.А. Ershov
The scalar-particle bound-state spectrum has been calculated for arbitrary isospin in the field of а regular SU (2) gauge-group dion. Inaccuracies are noted in previous discussions of particular isospin cases.
Show AbstractThe exciton- phonon model for preequilibrium reactions and (р, d) analysis
The exciton- phonon model for preequilibrium reactions and (р, d) analysis
А.N. Boyarkina, F.А. Zhivopostsev, and V.G. Sukharevskii
А multistage (р, d) reaction is considered, with two mechanisms for deuteron formation: coalescence and stripping. It is shown to bе important to consider the second and third stages in statistical multistage direct reactions.
Show AbstractTheory of resonant four - wave interaction in а beam plasma
Theory of resonant four - wave interaction in а beam plasma
М.V. Kuzelev, Yu.V. Bobylev, and V.А. Panin
А nonlinear theory is presented for resonant four-wave interaction between two electromagnetic modes in а waveguide and the first and second harmonics of the beam charge density waves.
Show AbstractCooperative Raman scattering
Cooperative Raman scattering
А.А. Barten'ev, Yu.А. Il'inskii, and А.S. Mkoуan
А quantum approach gives an equation system describing cooperative Raman scattering; numerical methods have been applied to how dipolemoment relaxation and pumping depletion influence this.
Show AbstractThe adiabatic approximation for linear and nonlinear dye solution r e sponse
The adiabatic approximation for linear and nonlinear dye solution r e sponse
В.А. Grishanin, V.М. Petnikova, and V.V. Shuvalov
Quantum calculations have been performed on the linear and nonlinear responses in vibronic transitions in polyatomic molecules. Comparison with experiment shows that the method has а clear-cut physical interpretation.
Show AbstractEquations for thermal sound self- focussing in а liquid
Equations for thermal sound self- focussing in а liquid
А.А. Karabutov, О.V. Rudenko, and О.А. Sapozhnikov
А simplified equation system has been used to describe а high- power acoustic beam in а liquid subject to thermal self-action. There are features in thermal sound selr-focussing differing from those for light self-focussing.
Show AbstractDevonshire's model applied to relaxation- type sound absorption at phase transitions in Rochelle salt
Devonshire's model applied to relaxation- type sound absorption at phase transitions in Rochelle salt
S.V. Pavlov
А Devonshire collinear sublattice model has been used to consider relaxation absorption in Rochelle salt near the phase-transition points. The acoustic absorption curve has not only peaks at the Curie points but also should have one in the ferroelectric phase.
Show AbstractAlignment in inner- shell vacancies formed bу channeling ions in а crystal
Alignment in inner- shell vacancies formed bу channeling ions in а crystal
V.N. Kondrat'ev
Vacancy alignment has been examined for the inner parts of а single crystal, where the vacancies are formed bу channeling ions. Formulas are derived for axial and planar channeling.
Show AbstractА study on f - d exchange in dilute dysprosium orthochromites
А study on f - d exchange in dilute dysprosium orthochromites
D.V. Belov, I.А. Zorin, А.М. Kadomtseva, I.В. Krynetskii, М.М. Lukina, and V.М. Matveev
Spin-flip transitions not observed in pure $DyCrO_3$ have been found in $Dy_xY_{1-x}CrO_3$ single crystals, both spontaneous and induced bу an external magnetic field $(H\parallel a, H\parallel b, H\parallel c)$. Measurements have been made on the f-d exchange pararneters and the anisotropy constants.
Show AbstractThe electrostatic field in an inhomogeneously stressed conductor
The electrostatic field in an inhomogeneously stressed conductor
V.I. Grigor'ev and Е.V. Grigor'eva
А theoretical study is made on the electric field in а chemically homogeneous isothermal conductor on the basis of а Thomas-Fermi model, in which there is а density distrioution generated bу inho mogeneous stresses.
Show AbstractGauge-invariant affine and projective lagrangians containing physical propagators
Gauge-invariant affine and projective lagrangians containing physical propagators
Р.А. Baikov, N.F. Nelipa, and S.S. Ostapchenko
Gauge-invariant lagrangians have been derived for affine and projective groups not containing ghosts and tachyons.
Show AbstractTheory of low frequency fluctuations in а weakly-ionized plasma in а magnetic field
Theory of low frequency fluctuations in а weakly-ionized plasma in а magnetic field
А.V. Chechkin
Correlation functions have been calculated for the low- frequency fluc tuations in а weakly ionized plasma in а magnetic field; estimates have been made of their effects on the particle diffusion transverse to the field.
Show AbstractThe $SnO_2—Eu$ luminiscence-excitation mechanism
The $SnO_2—Eu$ luminiscence-excitation mechanism
М.N. Agapov, S.S. Galaktionov, V.V. Mikhailin, А.V. Tkachev, and I.N. Shpin'kov
The luminescence excitation spectrum for $SnO_2—Eu$ has been recorded at 3-23 eV. The major features are interpreted from band calculations and published data.
Show AbstractNonlinear acoustic reflection from а solid interface
Nonlinear acoustic reflection from а solid interface
F.М. Severin, I.Yu. Solodov, and Yu.N. Shkulanov
Nonlinear second-harmonic generation and acoustic-wave interaction have been observed in the reflection of ultrasound frorn solid boundaries. The boundary nonlinearity leads to shear-harmonic generation in an isotropic body.
Show Abstract2:1 Codimensionality with Mimas and matter distribution in а ring on Saturn
2:1 Codimensionality with Mimas and matter distribution in а ring on Saturn
I.A. Gerasimov, Е.L. Vinnikov, and V.V. Chazov
It is found that the position of exact 2:1 coпunensurability with Mimas corresponds to а local minimum in the optical density in the Cassini gap. The $J_2 and J_4$ harmonics have been incorporated into the calculations.
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