Submultiple synchronization of harmonic generators
Submultiple synchronization of harmonic generators
V.V. Abgaryan, V.V. Karpov, and I.I. Minakova
A method of obtaining wide regions of stable submultiple synchronization by means of a transition to synchronization at the fundamental frequency is des cribed. The steady processes are investigated for the case when it is necessary to obtain at the output of the system a signal which is in one of three close submultiple ratios with respect to the input signal. The experiments show good qualitative agreement between the spectrum obtained and the spectrum calculated on a computer. The small quantitative disagreement is explained within the framework of the approximate theory.
Show AbstractElectronic properties of disordered semiconductors with a smoothly varying random field. Thermal conductivity
Electronic properties of disordered semiconductors with a smoothly varying random field. Thermal conductivity
P.G. Zhumatii
На основе точных выражений для кинетических коэффициентов тгипа формулы Кубо и квазиклассической теории движения частиц в случайном поле получены формулы для электронной теплопроводности неупорядоченных полупроводников.
Show AbstractTheory of the observation of cathodoluminescence in a stroboscopic scanning electron microscope
Theory of the observation of cathodoluminescence in a stroboscopic scanning electron microscope
G.V. Spivak, L.F. Komolova, G.V. Saparin, V.V. Mazur, and V.A. Cherepenin
The quantitative basis of a method of increasing the spatial resolution of a cathodoluminescent image in a scanning electron microscope using a three-dimens ional model is presented. An improvement in resolution by a factor of five is obtained in specimens of CdS and ZnSe semiconductors.
Show AbstractStability of mult ifrequency oscillations in an oscillator with delayed feedback
Stability of mult ifrequency oscillations in an oscillator with delayed feedback
Yu.M. Az'yan and A.S. Mkrtumov
The conditions for multifrequency oscillations to be stable are obtained using the harmonic balance method. It is shown that for the periodic process to be stable it is necessary to synchronize a minimum of three modes. Nonperiodic processes are also considered.
Show AbstractTemperature dependence of the bulk modulus of isotropic solids
Temperature dependence of the bulk modulus of isotropic solids
I.P. Bazarov and Ezhi Smelya
The temperature dependence of the bulk modulus of solids is obtained which is in good agreement with experiment.
Show AbstractThe theory of high-current discharges with reverse current
The theory of high-current discharges with reverse current
A.F. Aleksandrov and S.A. Reshetnyak
The region in which a high-current pinched discharge with reverse current can exist in optically nontransparent and optically "gray" (semitransparent) plasma is analyzed and a relation is obtained between the fundamental parameters of the plasma and the external parameters—the total number of particles in the discharge and the discharge current strength. Using the relations obtained a quantitative analysis is made which applies to typical experimental conditions.
Show AbstractEffect of temperature on raman line intensity of natural quartz irradiated with fast neutrons and nonirradiated
Effect of temperature on raman line intensity of natural quartz irradiated with fast neutrons and nonirradiated
V.G. Zubov, E.K. Zakharova, L.P. Osipova, and N.D. Kundikova
The effect of annealing at 250°C for fifty hours on the optical properties of quartz irradiated with an integral flux of fast neutrons of 4*10^18 n/cm^2 is investigated. It is shown that prolonged heating does not lead to complete annealing of the radiation defects including color centers. The existence of incomplete jannealing is indicated by the anomalous temperature behavior of the intensity of the 128 cm^(-1) and 466 cm^(-1)lines in the Raman spectrum of the irradiated specimen, I and also by the fact that the maximum at 2.78 μ is still present in the infrared spectrum after annealing.
Show Abstract