Search

The paper presents the results of an investigation of the height variations of dynamic processes in the 80–110 km height region, carried out in Kazan, U.S.S.R. (56°N, 49°E) by the radiometeor method during the MAC/EPSILON campaign. Experimental results show that the largest values of vertical wind gradients, as well as zonal and meridional temperature gradients can be found at heights of ~ 83 km. At heights of 80 ⩽ h ⩽ 100 km, we can observe energy absorption of IGW and tides which are the major sources of turbulent energy in the above-mentioned height interval. Using the effects of IGW energy absorption, values of the turbulent eddy diffusion coefficient K l ranging from 1600 to 4400 m 2 /s were calculated for October 1987. The energy dissipation rate ϵ was estimated to be from 0.1 to 0.4 W/kg.

The stresses appearing in two Fe-based amorphous alloys with different phosphorus contents owing to surface crystallization during annealing have been studied experimentally for the first time. The stress-induced anisotropy was measured and calculated using the experimental values. These data coincide well for the alloy with a lower phosphorus concentration. The deviation for the other alloy was explained by structural transformations during annealing. The transformations and structure of the surface layers were investigated by the Mossbauer effect.

IN October 1967 the Monitor System IFVE 67, a system for automating programming based on FORTRAN [1–5] for the MINSK-22 computer, was put into operation at the Institute of High-Energy Physics. The system includes dispatching, loading, control-diagnostic programs, input-output programs, a library of standard programs and a translator. The translator itself comprises rather less than half the whole system. FORTRAN was chosen as the basic language for automating programming at the institute for the following reasons. Firstly, there exists abroad a large library of programs written m FOTRAN, considerably exceeding in volume the libraries of programs in other algorithmic languages. The difficulty of merely composing programs for processing experimental data, which are the most important for the institute, far exceeded the difficulty of constructing a translator from FORTRAN. Secondly, FORTRAN provides for the possibility of working with large groups of relatively independent programs (separate translation of subroutines, presence of the operators COMMON etc). Thirdly, FORTRAN contains an extensive group of input-output format operators, and comparatively easily permits the insertion into programs of blocks written in languages close to machine code. Thus, FORTRAN can form the single basis for programming practically any problem arising at the institute. For comparison, we may mention that ALGOL, which is similar to FORTRAN, cannot in its present form serve as a basis for programming large groups of programs, since it is inferior to FORTRAN on the points enumerated above.