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Tomczak S.K.,Wroclaw University of Technology | Wilimowska Z.,University of Applied science in Nysa
Advances in Intelligent Systems and Computing | Year: 2016

The article presents the research results of normality distribution of financial ratios. Distributions are presented in the form of histograms and probability distribution density function of the ratios. The study normality of the ratios cover the period of five years. For businesses, the fallen was the period from one to five years before the bankruptcy. But for companies operating it was analogous period of five years in relation to undertakings fallen. © Springer International Publishing Switzerland 2016. Source

Tomczak S.K.,Wroclaw University of Technology | Gorski A.,Wroclaw University of Technology | Wilimowska Z.,University of Applied science in Nysa
Advances in Intelligent Systems and Computing | Year: 2016

A quality of classification of studied phenomena, or objects depends on the selection of variables (features) and criteria of the assessment. The choice of financial ratios in the study of financial standing of companies is crucial. The article presents the proposal to apply measure of quality of selection to choose sub-optimal subsets of financial ratios that best describe the subject of the research, which is the company. The aim of this study is to present a solution that allows the selection of financial ratios with a very high cognitive value, enabling the building of integrated measures assess the financial condition of the company. The presented results show the process of selection of the five-elements subset from the set of 13 financial ratios. © Springer International Publishing Switzerland 2016. Source

Rydel M.,Opole University of Technology | Stanislawski W.,University of Applied science in Nysa
2015 20th International Conference on Methods and Models in Automation and Robotics, MMAR 2015 | Year: 2015

This article presents a range of approximation error measures for reduced mathematical MIMO models of controlled objects. These measures can be of use in evaluations of reduction quality. The impact of selection of a particular approximation error measure as the objective function of the reduction parameter optimization algorithm on the frequency characteristics of the reduced model was analyzed. Particular emphasis was given to those cases where the individual channels of a MIMO model differ significantly from one another. The results are presented on the example of a one-phase zone evaporating tubes model of a BP-1150 steam boiler. © 2015 IEEE. Source

Malinowski P.,University of Applied science in Nysa | Borowik M.,Fertilizers Research Institute | Wantuch W.,Chemical Company Alwernia S.A. | Urbanczyk L.,Chemical Company Alwernia S.A. | And 2 more authors.
Polish Journal of Chemical Technology | Year: 2014

The results of the study regarding utilization of the waste gypsum formed as a by-product during the production of the magnesium sulphate from dolomite have been presented. The use of this waste have been proposed for the production of granulated multi-component fertilizers containing 25% N; 8% S; 14% CaO and 3.5% MgO. In the process of fertilizer production, the urea which will be bounded with the calcium and magnesium sulphate from the waste in the form of adducts of CaSO4 . 4CO(NH2)2 and MgSO4 . CO(NH2)2 . 3H2O will be the source of nitrogen in the fertilizer. It has been stated on the basis of the laboratory tests that the fertilizer with the assumed composition can be obtained by means of granulation of the raw material pulp, along with the dried and ground product return. The possibility of the production of the fertilizer with good physical properties according to the assumed concept has been confirmed in the pilot scale. Source

Wlodarczyk J.W.,University of Applied science in Nysa | Wlodarczyk A.M.,University of Applied science in Nysa
International Journal for Housing Science and Its Applications | Year: 2015

Time is a very important factor in the architectural creation of structure, form, and utility of flats and buildings in human settlements. The impact of the age of inhabitants stimulates the needs and arrangement of these flats. The other question in this case is the relation between the flexibility of a building and its heritage. The aspect of the form in housing is also very interesting: flexibility, adaptation and external appearance (elevation) of these buildings. The method of the paper is based on case studies, in situ inquiry (city walk: photo documentation, interviews, materials analysis) and theoretical research (literature insight). In this paper the authors will present the state of actual knowledge in this field in Europe. The following case studies will be shown: the city of Zabrze, the Silesia region in the south of Poland (flats for the elderly)! as well as "Puls 5" - an adapted multifunctional building in the revitalized post-industrial area of Untere Hard in Zurich, Switzerland, and "Park Hill" - modernized buildings in the housing area in Sheffield, England (flexibility in the process of revitalization and modernization of the heritage, flexibility of elevations). The results will concentrate on functional, constructional and esthetical adaptation aspects and flexibility of buildings with flats as a sign of time evolution, considering the need to improve the life quality of people, the preservation of heritage, and finally, sustainable development. © 2015 IAHS. Source

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