Deformation of the Surface of a Conducting Liquid under the Action of a Pulse of a Strong Field

It has been shown that the development of the process of the so-called Frenkel–Tonks instability occurring in the case of application of an electric field to a plane surface of a conducting liquid is also determined by the size of the initial distortions of the surface.     

Effect of Chemical Composition and Heat Treatment on Mechanical and Corrosion Properties of High-Chromium Nitrogen Steels

The effect of alloying of high-chromium nitrogen steels with manganese and nickel on their mechanical and corrosion properties is studied. Preferred modes of heat treatment providing the best combination of properties are presented.     

Continuous selective heating of the solid phase of a dispersion medium in a unit constituted by heater and valve-pulsed mass-heat-exchange apparatus

A new technique is suggested for the continuous and selective heating of the solid phase in a flowing dispersion. This technique is implemented in a heater-valve-pulsed apparatus unit. Mathematical models are developed for the cocurrent and countercurrent designs of the heater. Analytical solutions are obtained for the model equations, and parameters governing the continuous selective heating of the solid phase are determined. A design algorithm is suggested for the unit.     

Heat transfer in a horizontal coiled pipe in a transient regime and at a near-critical pressure of a fluid

It has been established that in the region of pressures close to a critical one, heat transfer in a transient regime of motion of a single-phase flow in a horizontal coil pipe changes nonuniformly over the cross section of the perimeter. The main factors here are the influence of inertia forces and of free convection. Equations to calculate the heat-transfer coefficient are suggested. __________ Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 81, No. 5, pp. 892–896, September–October, 2008.     

The recombination instability of current in a nonlinear regime in gold-compensated germanium

We report on the first results of the experimental verification of a theoretical one-dimensional model describing the recombination instability of current in gold-compensated germanium in a two-parametric space. The experiment revealed various regimes of the system functioning in the voltage-emission parameter space, the formation of subdomains, and the order-disorder transitions via intermittency or by a nonstandard evolution scenario.     

Heat-transfer phenomena in alloys

The phonon heat conductivity k _ph in Bi_{1 − x} Sb _x (x = 0.04–0.12) alloys is investigated in the temperature range of 6–60 K. The results are compared with the theory of solids at low temperatures, and the basic sources of phonon scattering are revealed. It is shown that phonon scattering at local mass changes dominates over other sources. The dependences of k _ph on composition are considered at temperatures of 60 and 90 K, and it is found that the normal N processes substantially affect the phonon scattering under these conditions. The donor-impurity effect on heat conductivity of Bi_0.88Sb_0.12 is considered, and the heat resistance caused by the phonon scattering at impurity centers is singled out.