313 research outputs found

    Exponenciální řízení homogenních markovských procesů

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    Title: Exponential control of homogeneous Markov processes Author: Pavol Stanek Department: Department of Probability and Mathematical Statistics, MFF UK Supervisor: Mgr. Peter Dostál Ph.D., Department of Probability and Mathematical Statistics, MFF UK Abstract: This master thesis concerns exponential control of Markov decision chains. An iterative alghorithm for finding a control, that maximizes a long term growth rate of expected utility is developed. The utility is measured by exponential utility function. The algorithm is derived for both discrete time and continuous time chain. Subsequently, the results are applied on the problem of optimally managing port- folio with proportional transaction costs. The dynamics of the investor's position is derived and the consequent process is approximated by Markov chain. Using the iterative alghorithm, the optimal trading strategy is numerically found. Keywords: exponential control, Markov chain, portfolio optimization, proportional transaction costs

    Attitudes of primary school pupils towards physical education in the city of Žilina and surroundings

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    Adamčák Štefan, Bartík Pavol. Attitudes of primary school pupils towards physical education in the city of Žilina and surroundings. Journal of Health Sciences. 2014;4(13):11-16. ISSN 1429-9623 / 2300-665X. http://journal.rsw.edu.pl/index.php/JHS/article/view/2014%3B4%2811%29%3A11-16 http://ojs.ukw.edu.pl/index.php/johs/article/view/2014%3B4%2811%29%3A11-16 https://pbn.nauka.gov.pl/works/489343 The former journal has had 5 points in Ministry of Science and Higher Education of Poland parametric evaluation. Part B item 1107. (17.12.2013). © The Author (s) 2014; This article is published with open access at Licensee Open Journal Systems of Radom University in Radom, Poland Open Access. This article is distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. This is an open access article licensed under the terms of the Creative Commons Attribution Non Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted, non commercial use, distribution and reproduction in any medium, provided the work is properly cited. Conflict of interest: None declared. Received: 10.09.2014. Revised 15.09.2014. Accepted: 04.11.2014. Attitudes of primary school pupils towards physical education in the city of Žilina and surroundings Štefan Adamčák, Pavol Bartík Matej Bel University, Faculty of Arts, Department of Physical Education and Sport, Banská Bystrica, Slovakia Keywords: attitudes, physical education, pupils at primary schools Summary The work deals with the attitudes of primary school pupils towards physical education. The man method was the method of questionnaire. Research group consisted from 447 pupils in the city of Žilina and its surroundings. We found out that in the group of primary school pupils there is a domination of indifferent attitude towards the physical education. Comparing the researches of Görner and Starší (2001) and Bartik (2009), the number of students with a positive attitude decreased significantly. The level of negative attitudes from the perspective of intersex differences is almost the same.Adamčák Štefan, Bartík Pavol. Attitudes of primary school pupils towards physical education in the city of Žilina and surroundings. Journal of Health Sciences. 2014;4(13):11-16. ISSN 1429-9623 / 2300-665X. http://journal.rsw.edu.pl/index.php/JHS/article/view/2014%3B4%2811%29%3A11-16 http://ojs.ukw.edu.pl/index.php/johs/article/view/2014%3B4%2811%29%3A11-16 https://pbn.nauka.gov.pl/works/489343 DOI: 10.5281/zenodo.1300

    Exponenciální řízení homogenních markovských procesů

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    Title: Exponential control of homogeneous Markov processes Author: Pavol Stanek Department: Department of Probability and Mathematical Statistics, MFF UK Supervisor: Mgr. Peter Dostál Ph.D., Department of Probability and Mathematical Statistics, MFF UK Abstract: This master thesis concerns exponential control of Markov decision chains. An iterative alghorithm for finding a control, that maximizes a long term growth rate of expected utility is developed. The utility is measured by exponential utility function. The algorithm is derived for both discrete time and continuous time chain. Subsequently, the results are applied on the problem of optimally managing port- folio with proportional transaction costs. The dynamics of the investor's position is derived and the consequent process is approximated by Markov chain. Using the iterative alghorithm, the optimal trading strategy is numerically found. Keywords: exponential control, Markov chain, portfolio optimization, proportional transaction costs

    Evaluation of methods for conceptual design and implementation of service-oriented aplications based on enterprise integration systems

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    Title: Evaluation of methods for conceptual design and implementation of service-oriented applications based on enterprise integration systems. Author: Pavol Kovac Department: Department of Software Engineering Supervisor: Ing. Lucia Kapova Supervisor's e-mail address: [email protected] Abstract: Service-oriented development (SOA) has become commonly used approaches for building large systems. The goal of the thesis is to evaluate of methods for conceptual design and implementation of service-oriented applications based on enterprise integration systems. In more detail, the work should analyze three frameworks for SOA development, implement a case study in these systems and based on the analysis evaluate possibilities of service coordination. The implementation of case study and introduction of steps of SOA development process is expected. Keywords: SOA, ESB, BPM, integratio

    KOMPARÁCIA INŠTITÚTU ŽALOBY NA OBNOVU KONANIA PODĽA SPRÁVNEHO SÚDNEHO PORIADKU V SLOVENSKEJ REPUBLIKE A ČESKEJ REPUBLIKE

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    Autor sa v príspevku zaoberá komparáciou inštitútu žaloby na obnovu konania, ako mimoriadneho opravného prostriedku, v právnej úprave Slovenskej republiky a právnej úpravy Českej republiky. Cieľom príspevku je poukázanie na rozdiely žaloby na obnovy konania, za účelom formulovania návrhov de lege ferenda. URL: https://unibook.upjs.sk/ The author deals with the comparison of the institute of the action for the restoration of proceedings in the administrative justice, as an extraordinary remedy, in the legislation of the Slovak Republic and the legislation of the Czech Republic. The aim of the paper is to highlight the differences of the action for retrial, in order to formulate de lege ferenda proposals

    Princíp právnej istoty a úloha Najvyššieho súdu Slovenskej republiky pri jeho posilňovaní

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    Autor v príspevku ponúka náhľad Európskeho súdu pre ľudské práva a Ústavného súdu Slovenskej republiky na uplatňovanie princípu právnej istoty cestou zjednocovania rozhodovacej činnosti súdov. Zaoberá sa procesnými a mimoprocesnými nástrojmi zjednocovania Najvyšším súdom Slovenskej republiky, ale aj jeho praktickými aspektmi v podobe zverejňovania rozhodnutí najvyššieho súdu, činnosťou analytickej jednotky a zjednocovacími senátmi. V závere analyzuje pôsobnosť veľkého senátu najvyššieho súdu vo svetle jeho posledných rozhodnutí. URL: https://unibook.upjs.sk/ In the contribution the author presents the views of the European Court of Human Rights and the Constitutional Court of the Slovak Republic on the application of the principle of legal certainty through case law unification. He deals with procedural and non-procedural instruments of unification of the Supreme Court of the Slovak Republic and practical aspects thereof such as publication of its decisions, activities of its analytical unit and unification panels. The agency of the Grand Panel of the Supreme Court in the light of its latest decisions is analysed at the end of the contribution

    MIESTNE DANE (A DAŇ Z NEHNUTEĽNOSTÍ) – VYBRANÉ PROBLÉMY KOMPARATÍVNEHO VÝSKUMU

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    LOCAL TAXES (AND PROPERTY TAX) – ASSORTED PROBLEMC OF COMPARATIVE RESEARCH Príspevok sa venuje vybraným problémom, ktoré sú spojené s uplatňovaním komparatívneho prístupu k skúmaniu miestnych daní so zameraním na daň z nehnuteľnosti, a to v kontexte rozdielneho prístupu jednotlivých štátov k posúdeniu, čo je miestna daň, ako aj predmetu zdanenia daňou z nehnuteľností a s tým spojeného pojmoslovia, rozpočtového určenia či metodiky vykazovania príjmov z týchto druhov platieb daňového charakteru. Autorka tieto aspekty skúmala na vzorke štátov Vyšehradskej skupiny. URL: https://unibook.upjs.sk/ The paper discusses selected issues related to the application of a comparative approach to the study of local taxes with a focus on the real property tax, in the context of the different approaches of individual states to assessing what is considered a local tax, as well as the subject of real property tax and the related terminology, budgeting or methodology of reporting revenues from these types of tax payments. The author examined these aspects on a sample of Visegrad Group countries

    Author Gary Gildner reads his selected works at the Michigan Writers Series

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    Author Gary Gildner reads "Sleepy time gal," "Pavol Hudak, the poet, is talking," and "Genealogy" then answers questions from the audience. The event is convened by Peter Berg, head of the Michigan State University Libraries' Special Collections. Part of the MSU Libraries' Michigan Writers Series. Held at the MSU Main Library

    Revisiting the Partial Power Processing Concept: Case Study of a 5-kW 99.11% Efficient Flyback Converter-Based Battery Charger

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    This article proposes an analytical methodology to evaluate the performance of the main partial power processing (PPP) architectures in terms of the improvements in the system's conversion efficiency. This analysis considers the influence of the system's voltage gain, the auxiliary dc/dc converter's efficiency, and the possibility of bidirectional power flow. Herein, the key PPP architectures are, thus, modeled and benchmarked. The presented results attest to the series configuration as the most efficient PPP circuit solution, with no limits on the system voltage gain, contrary to the generalized results found in today's literature. To assess these results and the significance of the proposed analysis, a well-known, simple, and cost-effective flyback topology has been designed and tested for a series PPP circuit solution able to effectively interface a 5-kW battery energy storage system (BESS) to a 700-V dc grid. A relatively high power conversion efficiency and compact hardware are achieved due to the reduced size requirements on the input and output filtering stages. Above all, while explaining the PPP concept, this study shows that even converter circuits known for their low power efficiency can be used to derive highly efficient systems. A design approach is, thus, provided to facilitate the design of the presented PPP circuit, and measurements are, finally, carried out to compare the obtained results with the expected ones derived from the developed analytical models. Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.DC systems, Energy conversion & Storag

    Studium chemických reakcí v nízkoteplotním plazmatu

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    1 Title: Study of the chemical reactions in low temperature plasma Author: Liliia Uvarova Department: Department of Surface and Plasma Science Supervisor: doc. RNDr. Petr Dohnal, Ph.D., Department of Surface and Plasma Science Advisor: Mgr. Pavol Jusko, Ph.D., Max Planck Institute for extraterrestrial Physics Advisor: prof. RNDr. Juraj Glosík, DrSc., Department of Surface and Plasma Science Abstract: This thesis focuses mainly on the study of the dissociative recombina- tion of N+ 2 ions with electrons and the action spectroscopy of the first overtone vibration transitions of HCO+ and HOC+ ions. The Cryo-SA-CRDS apparatus was utilized in order to study the dissociative recombination of N+ 2 ions in the temperature range of 140-250 K. The obtained recombination rate coefficients for the ground and the first vibrationally excited states of N+ 2 ions are in good agreement with the latest theoretical calculations. The laser-induced reactions and the 22-pole trap apparatus were used in order to probe the action spectra of the HCO+/HOC+ ions. The radiative lifetime of the 2ν1 state of both HCO+ and HOC+ ions and the collisional quenching coefficient of 2ν1 state of HCO+ ions for different collisional partners were obtained. Keywords: action spectroscopy, absorption spectroscopy, CRDS, LIR, recombi- nation rate...1 Název práce: Studium chemických reakcí v nízkoteplotním plazmatu Autor: Liliia Uvarova Katedra / Ústav: Katedra fyziky povrchů a plazmatu Vedoucí disertační práce: doc. RNDr. Petr Dohnal, Ph.D., Katedra fyziky povrchů a plazmatu Konzultant: Mgr. Pavol Jusko, Ph.D., Max Planck Institute for extraterrestrial Physics Konzultant: prof. RNDr. Juraj Glosík, DrSc., Katedra fyziky povrchů a plazmatu Abstrakt: Tato práce se zaměřuje především na studium disociativní rekombi- nace iontů N+ 2 s elektrony a akční spektroskopii overtonovych vibračních pře- chodů iontů HCO+ a HOC+. Pro studium disociativní rekombinace iontů N+ 2 v teplotním rozsahu 140-250 K byla použita aparatura Cryo-SA-CRDS. Získané rychlostní koeficienty rekombinace pro základní a první vibračně excitovaný stav iontů N+ 2 jsou v dobré shodě s nejnovějšími teoretickými výpočty. Pro zkoumání akčních spekter iontů HCO+/HOC+ byla použita technika laserem indukovaných reakcí a aparatura s 22-pólovou iontovou pastí. Byla získána radiační doba života stavu 2ν1 iontů HCO+ a HOC+ a rychlostní koeficient pro srážkovou deexcitaci stavu 2ν1 iontů HCO+ pro různé kolizní partnery. Klíčová slova: akční spektroskopie, absorpční spektroskopie, CRDS, LIR, rychlostní koeficient rekombinaceKatedra fyziky povrchů a plazmatuDepartment of Surface and Plasma ScienceFaculty of Mathematics and PhysicsMatematicko-fyzikální fakult
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