A physical mechanism of dense smoke suppression in a closed room by admitting a charged aqueous aerosol

It is experimentally demonstrated that the rapid suppression of an optically dense aerosol (smoke) by a strongly charged aqueous aerosol is related to acceleration of the volume diffusion and to electrostatic repulsion of the charged agglomerates.     

Effect of Charge Composition on Metallurgical Silicon Smelting Indices in Electric-Arc Furnaces

Metallurgist - It is shown that preparation of silicon at high temperature from silicon-containing resources by reduction with carbon in electric-arc furnaces is accompanied by the occurrence of...     

On the power of a new statistical test and two-sample Wilcoxon test

One approach to finding suitable critical values of statistics of a new nonparametric statistical test previously proposed by the author for the problem of testing the hypothesis of homogeneity of two and three samples is considered. The Wilcoxon test is equivalent to a particular (“linear”) case of the proposed test. A comparative analysis of these tests is performed for the case where the Wilcoxon test is locally the most powerful one among the ranking methods.     

New nonparametric statistical test for problems with three samples,which is more effective than the Whitney test

Optoelectronics, Instrumentation and Data Processing - A new nonparametric statistical test for testing the hypothesis of homogeneity of three samples against an alternative hypothesis, which...     

The disorder problem for stochastic jump processes

A Bayes formulation for the problem of rapid detecting appeared disorders in the probability characteristics of the observed stochastic jump process with values in a sufficiently general phase space is presented. It is supposed that the time of disorder appearance does not depend on the evolution of the observed process and coincides with the moment of one of the process jumps. Recurrent equations for a posteriori disorder probability are obtained. The lower bound for the optimal moment of alarming the happened disorder for minimizing the sum of false alarm probability (without disorder) and the mean time of alarm delay is found.