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The proliferation of electronic equipment that is permanently connected to the grid causes significant parasitic losses. Yet, the design of power supplies for PCs, servers, multi-function printers, etc, is governed by the cost and component specifications at the peak operating point as well as the thermal management of the power supply itself. Most power supplies have lower efficiencies at light loads than at their rated loads. If the unit spends most of its time at the light load operating point, then the energy consumption will be much higher compared to a situation where the power supply is optimized for overall energy consumption with a specified load cycle. Considering that most electronic appliances are produced in high volume, the use of power supplies that permit easy custom design makes sense from the standpoint of energy efficiency. Over the past few years, multiple topological changes and design changes that aim to improve the efficiency of the power supplies have been proposed. However, their proliferation in low cost consumer electronics has been limited primarily by their high costs, additional area overhead and incompatibility with existing power supply converter topologies. As a part of this Master's thesis research work, a business case is first proposed to show that a market for low cost and high power rating electronic devices that exhibits high power efficiency exists. Then a novel yet simple, low cost device(SSSR) is proposed to improve the efficiency of existing power supplies without effecting major changes to their existing design. Our claims are backed up by simulation results and a working prototype. Finally, a ROI model is presented to showcase the effectiveness of the proposed solution in today's consumer market.

The Author in his work deals with the transformation of the image of members of the Workers' and Peasants' Red Army in a film during the 20th century. Initial chapters are devoted to general aspects of use of movies in Memory studies and the development of the film industry in the USSR. The main part of the work focuses primarily on image of the Workers' and Peasants' Red Army in film of Soviet origin, the use of symbols and images and propaganda frameworks of Soviet filmmaking during the "short" 20th century, extending to the period after 1989 and examining the surviving Soviet discourse in it. To process the author uses Ego documents, contemporary press, studies, monographs and publicated archival sources.

The present thesis is dedicated to the thematic agenda of the magazine Svět sovětů (The World of Soviets) during the pre-war period (1934 - 1938) and the post-war years (1945 - 1946) as well as the image of the Soviet women that this magazine was forming. Fundamental intention of this research was to process complex set of topics of this magazine during mentioned time intervals, then capture differences (in case there were any) in the description during those periods and subsequently analyze the portion of articles that was dedicated to a Soviet woman, especially with regard to the following analysis of her image that was artificially constructed in the given magazine. The aim of this paper was to reconstruct the image of the "look" of the Soviet women and make comparison of its development during the period before World War II and subsequently after it was over. The assumption was that her portrayal depended on promotional and agitational politics of the Communist Party of Czechoslovakia and the Soviet Union itself, and that this image was changing depending on the political objectives of the Communist Party and the Soviets, which varied in accordance with the historical events that were taking place. This thesis therefore presents image of Soviet women deliberately formed as means of agitation and...

This thesis deals with how three chosen Czech daily newspapers - Rudé právo, Mladá fronta (later Mladá fronta DNES) and Lidové noviny - wrote about significant events that took place in the union republics during the last three years of the Soviet Union's existence (1989-1991). It specifically focuses on those events through which the republics were trying to regain freedom and independence for themselves - either through protests, or in a political matter. The thesis also addresses events that were somehow groundbreaking or during which ordinary people, who went to the streets to express their dissaproval of current political situation or to defend legally elected bodies, lost their lives. The thesis uses qualitative analysis to find out if there was a difference in how these three selected Czech newspapers wrote about such events in the context of changes that occured in the Czech political and media system, and if each own coverage somehow evolved.

The diploma thesis called "Motives and Results of The Great Terror in the USSR 1936-1938 in historic discussion" analyzes in broad terms progression of the scientific discussion in an international scientific world on one of the most important of Soviet history. It means bloody purges in late thirties. In the strict sense the diploma thesis has to assess two aspects of world's scholarship on this topic. Motives of the great purges and results of repressive policy in qualitative and quantitative terms. A special attention is to be given to a problem of eventual ideological approach of scholars. This paper has to present a main trends in global research of "The Great Terror" and stalinism respectively too. Next: to study an effect of objective circumstancies on the research (particularly fall of the USSR and so called archive revolution in 1991). A final part writes on contemporary achievement in a global research and on meanings of narrow problems 1936-1938 in a stalinism research in whole. Last word is dedicated to an relations of academia public to changes in terms of an official interpretations of history of stalinism in the Russian Federation.

The relationship between Czech and Russian avantgarde has not been properly examined, therefore the aim of this research was to understand the real facts and uncover “ the blind spots“ connected with the specific development of avantgarde architecture in Czechoslovakia and Soviet Union. A comprehensive and moreless thorough detailed reconstruction of the interwar period has been created with the help of comparative and historiographic analysis. This period used to be interpreted quite contrarily under the political pressure of the Soviet regime. The thesis analyses the influence of the political regime on architecture, determines the reflection of the events in the Soviet Union on the opinions of Czechoslovak architects by means of testimonies about mutual contacts, mutual criticism and cooperation in the sphere of architecture. The thesis brings and concludes new information regarding Czech architects who were designing and working in the Soviet Union. The research is based on archive documents, articles from specialized contemporary magazines and debates between Czech and Russian architects.

The period of late Stalinism (1948-1953) witnessed sharp rise of anti-Jewish animosity and discrimination from the part of the Soviet regime. These tensions were caused by both domestic factors (ideological diversification of Soviet intellectual elite, escalation of Jewish nationalism, struggle for power among highest nomenclature) as well as international factors (transformation of the Soviet-Israeli relations, rise of the Cold War). The thesis analyzes, how these circumstances were reflected at that time. Therefore it tries to identify, how the image of "The Jude" was formed by the Soviet propaganda and how it changed in the given time period. As a general framework for this analysis the concept of "The Enemy" will serve which is considered to be one of the basic elements of totalitarian ideologies. The thesis examines by means of semiotic method two significant propaganda campaigns of that period, namely campaign against the "cosmopolitism" in January - March 1949 and campaign accompanying "The Doctors' Plot" during January - March 1953. It would try to identify, how the image of "The Enemy" was connected at that time with the notion of "The Jew".

This work attempts to characterize internal modernization and international expansion of Russian speaking organized crime. Special emphasis is placed on the main stages of development of organized crime in the Soviet Union and its current state primarily in Russia and Ukraine. The paper proffer the new definition of modern forms of organized crime and different characteristics of regimes as for the relations between the state and organized crime (criminal syndicalism, mafia, state kleptocracy). The paper characterizes different types of international expansion of Russian speaking groups (regional expansion, global retirement and emigration). In this regard, research was focused primarily on the activities of the Russian speaking organized crime groups in the EU and the Czech Republic. In the last phase of the work I focused my research on some important measured how to reduce risk in the current conditions. Though the work is primarily devoted to organized crime from the CIS countries, it should be noted, modernization of organized crime everywhere in the world takes place by a similar manner. It was therefore necessary to briefly address the wider contextual issues. Working so many places highlights some aspects of the development of organized crime in Italy, USA , Czech Republic, Japan and China.

The dissertation is dedicated to the under-researched subject of the official sculpture in the DDR and ČSR in the time-frame 1948-1968. By evaluating the material on a broad background of the art historical, historical, cultural and ideological determinants, the dissertation endeavour to provide an accurate insight into the internal processes of the cultural machinery of the Socialist states with regard to sculpture and sculptors. The comparative character of the dissertation contributes to the understanding of the critical questions of art historical research of the period - such as the (in)authenticity of the local varieties of Socialist Realism and relatedness to the SSSR Socrealism, dates of the Socrealism existence, engagement of modernist sculptors, principles of the state/artist relationship or the second life of the Socrealist sculpture.