A pulse method of studying the thermoactivit y of dielectric liquids

A method is proposed here for measuring the thermoactivity of dielectric liquids and solutions. Experimental results are shown which have been obtained by thermoactivity measurements during the mixing of two dielectric liquids. The possibilities of using this method for a range of applications are discussed.Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 18, No. 2, pp. 253–258, February, 1970.     

Measurement of the thermal activity of liquids in the metastable region

A method of measuring the thermal activity of superheated liquids is described. Transition through the saturation line is effected under isobaric conditions by the pulsed heating of a thin layer of liquid bordering the resistive element used as the heater.     

Optical Properties and Photoconductivity of Bismuth Titanate

The optical absorption spectra and photoelectric properties of undoped and doped (CaF, CdO, ZnO, Ga₂O₃, Fe₂O₃, Bi₂₄FePO₄₀, and Bi₂₄AlPO₄₀) Bi₁₂TiO₂₀single crystals were studied before and after vacuum annealing. The optical absorption and photoconductivity in Bi₁₂TiO₂₀crystals were shown to be due to impurities. The band gap of Bi₁₂TiO₂₀was determined to be 3.21 ± 0.03 eV. Doping and vacuum annealing have a significant effect on the optical properties of Bi₁₂TiO₂₀via the formation of acceptor and donor levels in the band gap.     

Current Data Simulation Systems and Composition Choice for Iron Ore in Blast Furnace Production

The paper gives a formulation of the task, the characteristics of the algorithm, and the features of the software for selecting iron ore, calculating the best composition for the components in the agglomeration charge, estimating blast parameters providing proper economy of coke, normal slag, blast parameters, and gas-dynamic conditions. The software package is recommended for support to decisions for engineering staff selecting sources of raw material, and also for selecting the working parameters of blast furnaces under variable fuel and raw material conditions. Translated from Novye Ogneupory, No. 4, pp. 59–63, April, 2008.