https://repozytorium.ukw.edu.pl///handle/item/3477 2026-04-13T00:29:19Z https://repozytorium.ukw.edu.pl///handle/item/3520 Significance of condition attributes in child well-being analysis Adamus, Ewa; Klęsk, Przemysław; Kołodziejczyk, Joanna; Korzeń, Marcin; Piegat, Andrzej; Pluciński, Marcin In this study the significance of attributes in child well-being is presented. The main goal was to find features most specific for child-well being evaluation in Poland. The dataset was obtained from a survey based on a special questionnaire. To select important attributes three filter for individual attribute rank were used χ2, information gain and relief attribute evaluator and one filter-subset selector based on rough set theory. In the article the dataset is described in details. All the attributes are named, divided by category and for each a domain is given. Then methods of attribute selection applied in experiments are presented. Finally results on selecting attributes relevant for child well-being are discussed. 2011-01-01T00:00:00Z https://repozytorium.ukw.edu.pl///handle/item/3519 Numerical study of large scale truss construction with structural uncertainties Bednár, Róbert; Sága, Milan; Vaško, Milan The paper deals with efficiency and usability problem for the chosen solution methods for mechanical systems with structural uncertainties. They are significantly influencing the analysis results and the analysis itself. An application of the chosen approaches will be presented - the first one, a simple combination of only inf-values or only sup-values; the second one presents full combination of all inf-sup values; the third one uses the optimizing process as a tool for finding out an inf-sup solution and last one is Monte Carlo met hod as a comparison tool. 2011-01-01T00:00:00Z https://repozytorium.ukw.edu.pl///handle/item/3518 Programming of composite plates damage calculation Dudinsky, Martin; Riecky, Daniel; Zmindak, Milan The goal of this paper is to present the numerical results of elastic damage of thin unidirectional fiber-reinforced composite plates. The numerical implementation uses a layered shell finite element based on the Kirchhoff plate theory. Newton-Raphson method is used to solve the system of nonlinear equations and evolution of damage has been solved using return-mapping algorithm. The analysis is performed by finite element method and user own software is created in MATLAB programming language. One problem for two different materials was simulated in order to study the damage of laminated fiber reinforced composite plates. 2011-01-01T00:00:00Z https://repozytorium.ukw.edu.pl///handle/item/3517 Virtual systems in business and educational processes Łosowski, Piotr The aim of this article was to look through new business concepts in IT, to define them, to see the services offered and the possibilities of use in practice. New technology ideas puts IT as a service. Great distraction of information and intelligent tools makes them ineffective and takes low advantage of them. Grid and Cloud Computing are the latest concepts in IT and offers the agility to business and universities as well. In other words, because of virtualization and abstraction the processes that occurs in these institutions can be managed swiftly, easily and effectively. Allows to make the most of company’s resources. Physical locations of resources can be flexibly bounded and adjusted to current needs. Globalization and rapidly growing competition is forcing to apply the most innovative solutions. Taking in consideration the universities it is even more important when thinking of students as future human capital ,which should know the possibilities and be prepared the best. Sharing of computing, data centers, applications etc. on demand provides more powerful tools, more organized work and higher scalability and flexibility through inclusion of external resources. Grid and Cloud Computing have the potential to provide an IT infrastructure that addresses the demands of business while utilizing the IT resources most efficiently and cost-effectively. 2011-01-01T00:00:00Z