Time filter

Source Type

Ryzhakov V.V.,Penza State Technological University | Ryzhakov M.V.,Moscow Institute of Physics and Technology
Measurement Techniques | Year: 2015

A method of determining the composition of multicomponent gaseous media based on the use of a multichannel system with set of sensors possessing selective sensitivity to individual components is proposed. Functions for the conversion of the signals of the individual sensors and of the system of channels as a whole in light of the simultaneous influence of all the components on each channel are obtained. The direct and inverse problem of measuring the concentrations of the components of a particular medium are solved by means of an iterative procedure. © 2015, Springer Science+Business Media New York.

Volkov V.V.,Penza State Technological University
Izvestiya Vysshikh Uchebnykh Zavedenii, Seriya Teknologiya Tekstil'noi Promyshlennosti | Year: 2014

The mechanical model of a cotton bale and its mathematical model of deformational movement are presented in this article. The author gives the general and the particular solutions of the bale movement equations.

Ryzhakov V.V.,Penza State Technological University | Ryzhakov M.V.,Moscow Institute of Physics and Technology
Chemical and Petroleum Engineering | Year: 2015

Algorithms for use in estimating the parameters of nonlinear models and discriminating the output signals of a multichannel system used for estimating the polycomposition of gaseous media are considered. Systems of conditional equations are used in the synthesis of the algorithms. Using these systems, it is possible to solve systems of nonlinear equations and realize a required degree of precision of the results of an estimation obtained with the use of corresponding iterations. © 2015 Springer Science+Business Media New York.

Kolobova E.A.,Penza State Technological University
Neftyanoe khozyaystvo - Oil Industry | Year: 2015

The oil refinery and the surrounding natural environment are presented as complex technical systems, as objects of research and modelling. The methodological principles of modelling the interaction of oil refineries waste with the natural environment are proposed. System analysis of oil refinery - natural environment system is made on the basis of the proposed principles.

Chulkov V.A.,Penza State Technological University
Instruments and Experimental Techniques | Year: 2015

A simple scheme of the noise voltage generator with a Gaussian instantaneous-value distribution and specified energy spectrum bounds is presented. The scheme is based on emitter-coupled logic (ECL) microcircuits. As reference noise, the “digital” noise of the pseudorandom number generator, which is expressed via the contents sum of the set of its adjacent bits, is used. The “digital” noise is converted into an analog voltage by adding current quanta produced by the ϰ500ЛП115 differential receivers. The main characteristics of the device are as follows: the peak-to-peak amplitude of the differential noise voltage is 600 mV and the distribution law is normal. The noise energy spectrum is bounded from above by the clock rate and from below by the number of bits of the pseudorandom number generator. In the tested prototype with a clock rate of 10 MHz, it varies from 78 kHz to 6 MHz. © 2015, Pleiades Publishing, Inc.

Discover hidden collaborations