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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 41 to 42 of 42 (0.045 seconds)Spelling suggestions: "subject:"petersen"" "subject:"uetersen""
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Generování transientního signálu pro účely testování ochran a indikátorů poruch / Generating of the fault record for protection and fault indicator testingBažata, Petr January 2011 (has links)
The thesis is focused on a presentation of a model creating which is followed by the simulation of running real network with using the compensatory elements to minimize the incurred failures. This thesis is divided into two thematic parts – the first theoretical one deals with the basis structuring of short-circuit faults and more detailed study of ineffective ground connection. Particularly this part attends to the problematic of a network description with extinguishing suppression. Using the compensation minimizes the impact of the failure state. A short-term fixing of a resistor improves the function of the ground-fault protection and helps to detect the outgoing section damaged by the defect. Furthermore the thesis indicates simulation programs, compares them and chooses the most suitable one for the next practical part. This is focused on a simulation of a real network run, together with elements for an effective defect-reduction or easier detection of ground connection. As a simulation of a ground short-circuit is the model in the end of the thesis modified on a network with an effective grounded bundle. Testing of the model correctness and creating a record of a model using the real ground protection settings is also one part of this thesis.
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Marijuana Australiana: Cannabis use, popular culture and the Americanisation of drugs policy in Australia, 1938-1988Jiggens, John Lawrence January 2004 (has links)
The word 'marijuana' was introduced to Australia by the US Bureau of Narcotics via the Diggers newspaper, Smith's Weekly, in 1938. Marijuana was said to be 'a new drug that maddens victims' and it was sensationally described as an 'evil sex drug'. The resulting tabloid furore saw the plant cannabis sativa banned in Australia, even though cannabis had been a well-known and widely used drug in Australia for many decades. In 1964, a massive infestation of wild cannabis was found growing along a stretch of the Hunter River between Singleton and Maitland in New South Wales. The explosion in Australian marijuana use began there. It was fuelled after 1967 by US soldiers on rest and recreation leave from Vietnam. It was the Baby-Boomer young who were turning on. Pot smoking was overwhelmingly associated with the generation born in the decade after the Second World War. As the conflict over the Vietnam War raged in Australia, it provoked intense generational conflict between the Baby-Boomers and older generations. Just as in the US, pot was adopted by Australian Baby-Boomers as their symbol; and, as in the US, the attack on pot users served as code for an attack on the young, the Left, and the alternative. In 1976, the 'War on Drugs' began in earnest in Australia with paramilitary attacks on the hippie colonies at Cedar Bay in Queensland and Tuntable Falls in New South Wales. It was a time of increasing US style prohibition characterised by 'tough-on-drugs' right-wing rhetoric, police crackdowns, numerous murders, and a marijuana drought followed quickly by a heroin plague; in short by a massive worsening of 'the drug problem'. During this decade, organised crime moved into the pot scene and the price of pot skyrocketed, reaching $450 an ounce in 1988. Thanks to the Americanisation of drugs policy, the black market made 'a killing'. In Marijuana Australiana I argue that the 'War on Drugs' developed -- not for health reasons -- but for reasons of social control; as a domestic counter-revolution against the Whitlamite, Baby-Boomer generation by older Nixonite Drug War warriors like Queensland Premier, Bjelke-Petersen. It was a misuse of drugs policy which greatly worsened drug problems, bringing with it American-style organised crime. As the subtitle suggests, Marijuana Australiana relies significantly on 'alternative' sources, and I trawl the waters of popular culture, looking for songs, posters, comics and underground magazines to produce an 'underground' history of cannabis in Australia. This 'pop' approach is balanced with a hard-edged, quantitative analysis of the size of the marijuana market, the movement of price, and the seizure figures in the section called 'History By Numbers'. As Alfred McCoy notes, we need to understand drugs as commodities. It is only through a detailed understanding of the drug trade that the deeper secrets of this underground world can be revealed. In this section, I present an economic history of the cannabis market and formulate three laws of the market.
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