Slowing down of fission neutrons by water

In this articie we describe the method and results of measurement offor U²³⁵ fission neutrons slowed down by water to energies of 1.46 ev. The value obtained for _{1.46 ev} = 294 ± 1.5 cm² In conclusion, the authors express their sincere gratitude to I. I. Gurevich and D. V. Timoshuk for reviewing the results, to A. P. Venediktov for help in the work, and to G. R. Golbek for lending the -apparatus with low background.     

On the Growth of Thin-Film AlGaN/GaN Epitaxial Heterostructures on Hybrid Substrates Containing Layers of Silicon Carbide and Porous Silicon

Semiconductors - Abstract—In our work, we carry out a structural-spectroscopic study of AlGaN/GaN epitaxial layers grown by molecular-beam epitaxy with nitrogen-plasma activation on a hybrid...     

Monitoring and control of strip deflection in an acid bath

Magnitogorsk Metallurgical Combine. Translated from Metallurg, No. 11, pp. 38–39, November, 1990.     

Capabilities of modern systems for monitoring and diagnosing equipment

The cost of maintenance and repair is one of the most important service characteristics of any technical system. It is almost impossible to minimize such costs without efficient monitoring of the condition of the system. In modern monitoring and diagnostic instruments—at least those used on rotating equipment—vibration is the main type of process that is analyzed and takes precedence over all other processes, thermal processes included. This is not only because vibration diagnostics is more efficient and is rapidly becoming less costly to perform, but also because it can be done at any time—including after several years of equipment operation, when the costs of preventive maintenance and repairs are usually no longer economically justifiable. VAST Company, St. Petersburg. Translated from Metallurg, No. 11, pp. 33–36, November, 1998.