Galina Sivyakova

• Doctor of Engineering
• Vice-rector at Карагандинский государственный индустриальный университет

The article explored the energy sector of the Republic of Kazakhstan. The data on the demand for new installed capacity are presented. The scenarios for the development of the energy sector and factors determining the characteristics of scenarios are considered. The main results of the simulation are analyzed. SWOT analysis was made in the field of...

The article considers the positive and negative aspects of the use of electric vehicles. A rough calculation of the energy efficiency and average cost per month was made. Also priorities to avoid the existing problems in the market of electric vehicles were set.

The well-known numerical-analytic method based on zeroes/poles matching (as z-transform realization) of equivalent transfer function or complex impedance (conductivity) in Laplace domain was proposed for high-speed computer analysis of electric circuits' transients. The advantages of this method were illustrated on simple examples of the computer m...

The article is devoted to questions of building of uncoiler electric drive simulation model at rolling mill. Model detects current, moment, electro driving power, magnetic flow and engine rotation speed. © 2014, Wydawnictwo SIGMA - N O T Sp. z o.o. All rights reserved.

In this paper a computer modeling using program complex DEFORM of various models of equal channel angle pressing is made. Also there is a description of opinion of ECA-pressing called “ECA pressing with quasi-ultra-small angles of joint channels” and shown advantages of this opinion.

Purpose: This work is devoted to definition of the most rational form of pre-calibers at rolling of reinforcing steel. The study was done using of computer modeling in the program “DEFORM-3D”. Design/methodology/approach: For definition of rational forms of calibers were studied following calibers: one-radius oval, flat oval with double concavity a...