Econtechmod. – 2013. – Vol. 2, No. 2
Permanent URI for this collection
Науковий журнал
International quarterly journal on economics in technology, new technologies and modelling processes.
Econtechmod : an international quarterly journal on economics in technology, new technologies and modelling processes. – Lublin ; Rzeszow, 2013. – Volum 2, number 2. – 63 p.
Browse
Recent Submissions
Item Geoinformation technology for spatial inventory of greenhouse gas emissions: electricity and heat generation in Poland(Національний університет "Львівська політехніка", 2013) Topylko, P.; Lesiv, M.; Bun, R.; Nahorski, Z.; Horabik, J.One of the main features of energy production in Poland is high dependence on consumption of coal and lignite, which results in significant emissions of greenhouse gases (GHGs) to the atmosphere. This article presents the geoinformation technology and spatial analysis of GHG emissions from fossil fuel burned by power and combined power and heat plants. These plants are considered as emission sources of a point type. As input data, official regional statistics about consumption of fossil fuel for electricity and heat production are used. In addition, main characteristics of power and power/ heat plants are collected from official web-sites. Based on the developed model, numerical experiments have been carried out for the territory of Poland. The results of spatial modeling are presented in the form of thematic maps.Item Ukraine’s prospects in development of marine mineral deposits(Національний університет "Львівська політехніка", 2013) Sukach, M.It is shown that the known reserves of ma¬rine minerals, including polymetallic nodules hydrates, marine sapropels, etc., will last the humanity for thousands of years. International cooperation and broad cooperation of companies and enterprises of maritime mining are needed to conduct the search, along with research and operation of deep mining complexes. This will allow us to prepare for the commercial development of marine deposits of mineral and energy resources in the near future.Item Interaction free energy of small particles in an elektrolyte solution(Національний університет "Львівська політехніка", 2013) Shostak, S.; Shkoda, N.; Stetsenko, S.A solution has been constructed of the Debye-Huckel equation for system spheres with arbitrary radii and surface charges or potentials in electrolyte solutions. A general theoretical method for description of inter-particle interaction within such systems has been elaborated. The practically important case of two spheres has been considered in detail. Finite closed formulae to calculation of interaction energy of two spherical particles with constant surface charges have been obtained from general expressions within zero approximation. The known relationships of Deryagin-Landaw-Lifshits-Over- beek theory follow from our formulae in the limit cases.Item Impact voltage deviation on the technological characteristics of crushers(Національний університет "Львівська політехніка", 2013) Savchenko, V.; Sinyavsky, A.The results of research on the influence of voltage deviation on the technological characteristics and energy losses in electric drive of the crusher are presented. Dependence of the productivity, of specific consumption of energy and grinding module on the voltage are established.Item Effect of polarization molecules reagents of the burning reaction on the efficiency of equipment for thermogeneration(Національний університет "Львівська політехніка", 2013) Kovalyshyn, B.The aspects of physical and chemical nature of oxidizing-reduction processes of burning were investigated. The communication of efficiency of fuel equipments with polarizing and activating of molecules-reagents was exposed. Application of molecules electro-activation for optimization of the chemical reactions at burning passed at incineration of gaseous hydrocarbon fuels in the oxidizing air environment was grounded experimentally.Item Personal potential of manager as a prerequisite of realization of managerial potential of enterprise(Національний університет "Львівська політехніка", 2013) Voronkova, A. E.; Kalyuzhna, N. G.Crucial role of management is proved in realizing the potential of enterprise management system. The essence of the concept of “managerial staff’ based on establishing key characteristics of managerial work is specified. The necessity of consideration of personal potential managers and their competencies as prerequisites of managerial capacity of the enterprise is justified. The necessity is pointed out of mastering managers’ socio-psychological instruments of influence on the staff with the aim to develop their personal potential.Item Time of exposure to grain processing disinfection in strong electric fields(Національний університет "Львівська політехніка", 2013) Bereka, O.; Usenko, S.A prototype installation is presented developed at the Department of Electric and Electro Technology of the National University of Life and Environmental Sciences of Ukraine, in which, with appropriate electric field intensity in air inclusions partial grain mass discharges are occurring and, accordingly, throughout the volume of products ozone is formed, the concentration of which is governed by the electric field. The results of investigation of barley moisture effect on ozone concentration in the grain mass under the action of a strong electric field are discussed and a nomogram is developed for determining the time required for an effective dose of antiseptic treatment of barley.Item Mathematical model of dust cleaning process in centrifugal-inertial dust collector(Національний університет "Львівська політехніка", 2013) Batluk, V.; Paranyak, N.; Makarchuk, V.The article is devoted to the problem of providing air cleaning from dust in various industries, using highly efficient apparatus, with the aim of bringing the volume of harmful emissions to the sanitary standards. The article presents new directions in creating of dust cleaning apparatus, based on the usage of centrifugal, inertial forces, by which the efficiency of dust collection could be significantly increased.Item Modelling of an impact of investment maintenance on the condition of economic protectability of industrial enterprises(Національний університет "Львівська політехніка", 2013) Alekseyev, I.; Khoma, I.; Shpak, N.There was substantiated the necessity of im¬plementation of a modelling of an impact of investment mainte¬nance on the condition of economic protectability of industrial enterprises with the participation of estimation of cost of investments and investment projects, the mechanism of purchase and sale of securities and conclusion of option contracts that allows to rationally manage the profitability of investment programs, fully ensuring the protectability of entrepreneurship of each subject of real sector of economics.Item Зміст до "Econtechmod" Volum 2, nomber 2(Національний університет "Львівська політехніка", 2013)Item Титульний аркуш до "Econtechmod" Volum 2, nomber 2(Національний університет "Львівська політехніка", 2013)Item The problem of highly effective cleaning of air from dust(Національний університет "Львівська політехніка", 2013) Batluk, V. A.; Romantsov, E. V.; Klymets, V. M.This article deals with the problem of providing high performance apparatuses for cleaning air from dust in various branches of industry in order to reduce hazardous emissions to the level of conforming to the sanitary-hygienic norms. The article describes new trends in the development of dust catching apparatuses based on the use of centrifugal-inertial forces, permitting to improve significantly the dust catching efficacy.