穿壁焊极柱合金探索

本文对起动用铅酸蓄电池穿壁焊极柱用合金配方进行了探索 ,并得到了良好的应用效果     

Probability estimate of the systematic error of measurement of the dipole moment of arbitrarily magnetized bodies

Translated from Izmeritel'naya Tekhnika, No. 10, pp. 38–39, October, 1992.     

Microprocessor instruments for measuring nonlinear distortions; algorithms for digital processing of the measurement signal and an estimate of the errors

Rational algorithms for measuring the harmonic coefficient in microprocessor instruments for measuring nonlinear distortions based on digital processing of the codes of the instantaneous values of the signal being investigated are described and the errors of such instruments are obtained.Translated from Izmeritel'naya Tekhnika, No. 4, pp. 56–59, April, 1995.     

Influence of charge flow along a semiconductor surface on the nature of the multiplication coefficient in a silicon-wide-gap layer structure

It has been shown that the flow of mobile minority carriers along the semiconductor-wide-gap layer interface substantially influences the uniformity of the multiplication coefficient in an avalanche photodetector. Around inhomogeneities in the semiconductor substrate, a “dead zone” of fairly large area is formed, where the multiplication coefficient is several orders of magnitude lower than that on the remaining area of the device. Specific methods are proposed to improve the uniformity of the avalanche process in a semiconductor-wide-gap layer structure. Pis’ma Zh. Tekh. Fiz. 23, 72–76 (April 26, 1997)     

Filtration drying kinetics of gas-permeable articles

The drying process under conditions of filtration of a drying agent through a porous structure of a moist article is considered. The existence of three dehydration stages is established: 1) mechanical displacement of water; 2) elimination of moisture in the form of a gas-liquid emulsion; 3) drying. A kinetics equation is derived for each stage. Combination of all the three stages provides a high rate of the total process exceeding the drying rate by tens of times when flowing around an object as a unit.L'vov Polytechnic Institute. Translated from Inzhenerno-fizicheskii Zhurnal, Vol. 63, No. 6, pp. 708–713, December, 1992.     

On the Protective Properties of Electrostatically Spraged Fluoroplastic and Epoxy Coatings

The protective and insulating properties of fluoroplastic and epoxy coatings applied by high-voltage electrostatic spraying were studied. The epoxy coatings were found to be less permeable than the fluoroplastic ones, yet they cannot be used to protect metal parts in corrosive environment because of their low chemical resistance.