Performance of a Li-Polyimide Battery with Electrolytes of Various Types

Russian Journal of Electrochemistry - —The effect of various types of electrolyte on the behavior of lithium-polyimide batteries was studied. The electrolyte systems used included the liquid...     

Experimental and Theoretical Studies of Electrodialysis of Model Solutions Containing Aniline and Sulfuric Acid

Russian Journal of Electrochemistry - Demineralization of a solution containing aniline and sulfuric acid was studied at different voltages on the electrodialyzer with heterogeneous anion-exchange...     

Study of the Crack Resistance of Microarc Oxidation Coatings after Laser Doping with Zirconium Oxide

Technical Physics - In this paper we present the results of a study of crack resistance of a microarc oxidation coating (MAO) after laser doping with zirconium oxide. Crack resistance was...     

Estimation of Some Approximating Characteristics of the Classes of Periodic Functions of One and Many Variables

Ukrainian Mathematical Journal - We establish the exact-order estimates for some approximating characteristics of the classes $$ {mathbbm{W}}_{p,alpha}^r $$ and $$ {mathbbm{B}}_{p,theta}^r $$...     

Optical and Photoelectric Inhomogeneity of CdTe:V Crystals

The optical and photoelectric properties of CdTe:V crystals with the doping impurity concentration N _V = 5·10¹⁸–5·10¹⁹ cm^–3 are investigated and the possibility of their use as a photorefractive material is considered. As is seen from the spectra of optical transmission, the crystals of both types possess high transparency (50–65%), which for CdTe:V specimens with N _V = 5·10¹⁹ cm^–3 decreases sharply and in the range 12–14 m does not exceed 5%, whereas for CdTe:V crystals with vanadium concentration of 5·10¹⁸ cm^–3 such a value of transmission remains unchanged up to 25 m, implying a good optical quality of the latter crystals and their possible application in the spectral range 1.06–1.25 m in modern fiber-optic communication lines.     

Optical Properties of TGS Crystal with <Emphasis Type="Italic">L</Emphasis>-Valine Admixture

The thermal expansion and temperature and the spectral dependences of the refractive indices and birefringence of triglycine sulphate (TGS) crystals with a 5% L-valine admixture have been investigated. It is established that the introduction of L-valine weakens the temperature dependence of the refractive indices and the birefringence and thermal expansion of TGS crystals. The parameters of the Sellmeier formula, refractions, and electronic polarizabilities are calculated. The changes observed may be related to the increase in hardness of admixture-containing crystals, the decrease in the spontaneous polarization, the replacement of the refraction components of the valine bond, or the spontaneous electro-optic effect.