Deformation Features of Rock Mass Enclosing Underground Machine Hall of Rogun HPP at Final Construction Stage

This paper presents an analysis of observations of the displacement of the rock mass at the site of the underground machine hall of the Rogun hydropower pl     

Vladimirskaya hydroelectric pumped storage power plant as the first pilot power project of the 21st century

The authors describe the Vladimirskaya hydroelectric pumped storage power plant that is currently being designed as the pilot Russian power project for the 21st century.Translated from Gidrotekhnicheskoe Stroitelstvo, No. 8, August 2004, pp. 15 – 20.     

Effect of Disorder on Electronic,Magnetic, and Optical Properties of Co2CrZ Heusler Alloys (Z = Al,Ga, Si,Ge)

This paper presents the effect of disorder on electronic, magnetic, and optical properties of Co₂CrZ (Z = Al, Si, Ga, Ge) Heusler alloy using density functional theory. Binary mixing is the most common form of atomic disorder in these compounds. We have considered three types of disorders: DO ₃, A2, and B2 disorder which corresponds to X-Y, X-Z, and Y-Z mixing, respectively. After structural optimization, we found that A2 disorder has high formation energy and is most unlikely to occur. The half-metallic nature of the alloy is destroyed in the presence of DO ₃ and A2 disorder. The destruction of half-metallicity is due to reconstruction of energy states. B2 disorder retains the half-metallic nature of the alloy but spin-polarization value is reduced slightly as compared to the ordered alloy. In addition, the optical properties such as dielectric function, refractive index, absorption spectra, optical conductivity, reflectivity, and energy loss function of these alloys have also been investigated.     

The effect of magnetic field on domain electroluminescence in barium titanate crystals near the ferroelectric phase transition

By measuring electroluminescence (EL) in barium titanate crystals exposed to a pulsed electric field in combination with a magnetic field, we have studied the dependence of a shift in the temperature of maximum EL on the magnetic field strength and on the mutual orientation of the electric and magnetic fields. The possible mechanisms of the observed effects are discussed.