Nikiforov V.N.,Moscow State University |
Sredin V.G.,Peter the Great Military Academy of Strategic Rocket Forces |
Kurbanov K.R.,Kremenchuk Institute at Dnepropetrovsk University of Economics and Law
Russian Physics Journal | Year: 2011
Results of investigations into the temperature dependences (4. 2-300 K) of the low-frequency ultrasound velocity in CdxHg1-xTe single crystals are presented. The elastic moduli and the Debye temperatures are calculated for different solid solution compositions. Based on the data obtained, possible stresses are estimated on the heteroboundary of the materials with a number of substrates. © 2011 Springer Science+Business Media, Inc.
Kovalenko A.F.,Peter the Great Military Academy of Strategic Rocket Forces |
Konyukhov M.V.,Peter the Great Military Academy of Strategic Rocket Forces |
Sukhovei S.B.,Peter the Great Military Academy of Strategic Rocket Forces
Glass and Ceramics (English translation of Steklo i Keramika) | Year: 2015
Analytical relations for calculating the energy density required for piercing openings in nonmetallic plates and the vaporized mass of matter per unit energy input are obtained on the basis of a one-dimensional problem of the vaporization of an absorbing layer of material with ‘prompt’ deposition of the laser pulse energy. Amethod of laser action on a plate that reduces the energy losses by a factor of two and makes it possible to determine rational regimes for piercing openings in glass and ceramic plates is proposed. © 2015 Springer Science+Business Media New York
Talipov N.K.,Peter the Great Military Academy of Strategic Rocket Forces
Russian Physics Journal | Year: 2013
Results of investigations into the electrophysical properties of p- and n-type CdxHg1-xTe heteroepitaxial layers grown by molecular beam and liquid phase epitaxy methods after exposure to high-power pulsed IR radiation of solid-state Nd3+:YAG and chemical DF lasers at wavelengths of 1.06 and 3.8-4.2 μm, respectively, are presented. It is demonstrated that the main types of defects resulting from pulsed irradiation are mercury vacancies that play the role of acceptors in this material. The spatial distribution of generated mercury vacancies depends on the intensity and wavelength of laser radiation: the defects generated by pulses of the Nd3+:YAG laser are concentrated only near the surface, whereas DF-laser radiation creates defects in the entire volume of the heteroepitaxial structures. It is established that irradiation with the Nd3+:YAG laser of the p-CdxHg1-xTe heteroepitaxial layers implanted by boron ions leads to the activation of implanted boron atoms as a result of melting and recrystallization of the irradiated surface layer. © 2013 Springer Science+Business Media New York.
Khokhlachev E.N.,Peter the Great Military Academy of Strategic Rocket Forces
Solar System Research | Year: 2011
A methodological approach is proposed for determining optimal costs while maintaining required survivability of terrestrial objects of a satellite control system. The costs are calculated taking into account their distribution between the power and means, ensuring lesser vulnerability of the object, and the power and means spent on its reconstruction after damage. A problem of nonlinear programming with certain contingencies is formulated and solved to calculate the costs. © 2011 Pleiades Publishing, Ltd.