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In present time the high efficiency switching DC/DC converters, e.g. buck and boost are often used. This work describes some problems of DC-DC converters, which can occur, when the load is suddenly disconnected or simultaneous disconnection of the load and the capacitor at the output. The results were derived both by simulation but also by measurement. A special measuring system has been developed for these measurements, which enables the realization of fault conditions. Therefore, measurements were performed on 2 different types of DC-DC converters. The results of simulations and measuring are presented in the work. Error conditions usually cause an overvoltage that can damage the equipment connected to the converter. A solution how to prevent overvoltage and thus damage connected systems is also described.

The publication was created with the financial support of the Ministry of Industry and Trade within the institutional support for long-term conceptual development of the research organization: the grantor - the Ministry of Industry and Trade, beneficiary - VÚTS, a.s.

The thesis is trying to bring the comprehensive information about Private Protected Areas (PPAs) and evaluate their effectiveness of management within the study region of Western Ecuador. The description of brief history, current trends in Latin America and Ecuador in private conservation are presented. Twenty PPAs were randomly selected and the Rapid Assessment and Prioritization for Protected Areas Management methodology used to evaluate their management effectiveness. To date, PPAs are not incorporated into the national system of protected areas and a few incentives are provided towards forest conservation on private lands. PPAs must face pressures and threats as mining, urban development or illegal hunting and land trafficking within their properties and they receive almost no help and attention from the authorities in cases of intervention. PPAs often serve as buffer zones of bigger public protected areas or stepping stones between smaller patches of protected forest. The highest scores on overall management effectiveness were found among generally bigger reserves owned by NPOs. The work also provides a brief comparison of private conservation in Ecuador and Czech Republic.

in English Fashion Law This rigorosum thesis carries the name of the recently established field of law. The fashion law has to uphold its status through fulfilment of the field-specific criteria; therefore, the fashion law is introduced on the background of a three part conceptual classification - fashion business law, fashion public law and fashion intellectual property law. The first chapters are dedicated to the establishment of the fashion law with respect to its wide academic acceptance. The second chapter outlines fashion business law with a special view to intellectual property licensing, due to its influence on the reputation of the fashion companies, which is crucial in such a competitive field. The topic of fashion public law is included as well in the second chapter as a necessary part of the legal field which might provide an alternative look at the issue of protection of the fashion companies' intellectual property. The entire third chapter addresses the fashion companies' intellectual property: patents, copyright, fashion designs and trade marks as suitable forms of protection of fashion designs and fashion brands. Individual forms of protection are presented in the international context with specific statutory requirements of the respective way of protection. A relevant part of the...

Economic situation in the Central Europe is to a big extent influenced by the disparities between core regions (mostly the capitals) and the rest. If the gap between cores and peripheries is still widening, local governments of peripheral regions must come up with policies to protect their economies from the globalised world. This basic statement is examined in this work using two different methods: regionalised input-output analysis (for Czech regions) trying to discover structural differences between regions and its implications, and NEG equilibrium simulation method examining agglomeration forces in the Central Europe and evaluating possible outcomes of protective policies in terms of NTBs (limiting the openness). The results confirm the agglomeration tendencies and suggest mainly two ways of effective policies: regional specialisation and investments into infrastructure, which would lower the transaction costs within the peripheral regions. NEG simulation method has serious limits due to the problematic calibration. Powered by TCPDF (www.tcpdf.org)

Research projects, specially in the computer science domain, have consistently provided outputs as open source products or updates to long-standing open source projects. This occurs due to the shared openness nature of both research and open source, that enables re-use by the community spanning new developments in both research and open source products. But when an open source project serves a community and a real-world problem, the impetuousity of research can clash with the inertia of real-world application. Nevertheless, research projects can bring the much needed innovation to open source projects, and open source projects can bring the much needed route to market that research funders look for the outputs of the research they fund, ensuring the budget spent in research actually reaches the community and improves the world. This paper presents an analysis of this dynamic with a case study about RODA, an open source repository for digital preservation, used in memory institutions such as archives, and two research projects, SCAPE, focused on digital preservation scalable services, and E-ARK, focused on standardization of information packages, integration with real-world applications, and database preservation. The paper further tries to identify good practices for using existing open source projects in research and assure that research outputs are further carried into main versions of open source projects and find their way to the final user., Výzkumné projekty, zvláště v oblasti počítačové vědy, trvale poskytovaly výstupy jako open source produkty nebo updaty k dlouholetým open source projektům. K tomu dochází díky sdílné a otevřené povaze vědeckého výzkumu i open source hnutí, které umožňuje opětovné využití komunitami, což pozitivně ovlivňuje rozvoj jak výzkumu, tak open source produktů. Ale slouží-li open source projekty společnosti a řeší-li problémy skutečného světa, může se rychlost výzkumu dostat do střetu se setrvačností aplikace ve skutečném světě. Přesto mohou výzkumné projekty přinést velice potřebnou inovaci open source projektů a ty mohou otevřít potřebnou cestu na trh, kde investoři hledají výstupy výzkumů, jež financují, a ujišťují se, že rozpočet vynaložený na výzkum skutečně pomůže komunitě a zlepší svět. Toto pojednání představuje analýzu této dynamiky v případové studii o systému RODA, open source digitálním repozitáři, využívaném v paměťových institucích jako jsou archivy, a dvou výzkumných projektech: SCAPE, který je zaměřen na škálovatelné služby digitální ochrany, a E-ARK, zaměřený na standardizaci informačních balíků, integraci s reálnými aplikacemi a uchování databází. Článek se dále pokouší identifikovat osvědčené postupy pro použití stávajících open source projektů ve výzkumu a ujistit se, že výstupy výzkumů jsou přenášeny do hlavních verzí open source projektů a najdou si cestu k uživateli., This work was partially supported by the E-ARK project. The E-ARK project is co-funded by the European Commission under CIP-ICT-PSP-2013-7 (Grant Agreement number 620998)., KEEP SOLUTIONS is also a co-funder of this work.

The population structure, demography parameters, dispersal and behaviour of the Dark Green Fritillary (Argynnis aglaja) butterfly were studied on the traditionaly managed submontane seminatural grasslands, in order to elucidate the relatively successful persistence of this species, if compared with other butterflies sharing the same habitat.