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Khmarov I.M.,2nd Central Research Institute | Kondrashov N.G.,Military Aviation Engineering University
Measurement Techniques | Year: 2011

We propose a method for small-scale experimental studies of the ladar characteristics of objects using a stationary land-based laser test bench, based on calibration of signals by employing adaptive specular/diffuse reference standards. We describe methods for field measurements of ladar characteristics of aircraft in flight by laser tracking systems for direct detection and heterodyne detection of the reflected signal, with the help of airborne reference standards and a moving object simulator. © 2011 Springer Science+Business Media, Inc. Source

Fesenko A.I.,Tambov State Technical University | Ishchuk I.N.,Military Aviation Engineering University
Measurement Techniques | Year: 2011

A solution of the direct problem of thermal conduction when a linear pulsed heat source acts in the contact plane of two semibounded bodies, obtained by the method of finite differences, is presented. The results of a programmed realization and experimental investigations are given. © 2011 Springer Science+Business Media, Inc. Source

Popelo V.D.,Military Aviation Engineering University | Fakhurtdinov I.R.,All Russia Research Institute of Optophysical Measurements VNIIOFI
Measurement Techniques | Year: 2011

The basic ideas of a method of comparing the effective scattering areas of reflectors in the form of segments of specular spherical surfaces and retroreflectors, used as standard and working measures when measuring the reflection characteristics of objects when using active lidar, are developed. The systematic errors of the method are analyzed and recommendations are made on methods of reducing them. © 2011 Springer Science+Business Media, Inc. Source

The elastic (G) and inelastic (Q-1) properties of (Co45Fe45Zr10)x(Al2O3)100 - x, Cox(CaF2)100 - x, and Cox(PZT)100 - x (x = 23-76 at %) nanocomposites obtained by ion-beam sputtering are studied in the temperature range 300-900 K. A significant rise in the QQ-1 (T) curve is observed at temperatures above 650 K, which is attributed to thermally activated migration of point defects under the conditions of confined geometry. © 2013 Pleiades Publishing, Ltd. Source

Korenman Ya.I.,Voronezh State Technical University | Mokshina N.Ya.,Military Aviation Engineering University | Zykov A.V.,Voronezh State Technical University
Russian Journal of Physical Chemistry A | Year: 2010

Distribution coefficients of vitamin B2 in hydrophilic solvent (n-butanol, isopropanol, acetone, ethyl acetate, and their mixtures)-aqueous salt (potassium chloride, sodium fluoride, and ammonium sulfate salting-out agents) solution systems were calculated. The synergic effect and optimum proportions of components in the solvent mixture for efficient extraction of vitamin B2 from aqueous solutions were established. © Pleiades Publishing, Ltd., 2010. Source

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