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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
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 11 to 20 of 20 (0.014 seconds)| 11 |
LLC rezonanční měnič středního výkonu / Medium Power LCC Resonant ConverterPetrásek, Radek January 2008 (has links)
The aim of this diploma thesis is to study the resonant converters operation. This paper is concretely specialized to design and implementation the LLC resonant converter with output power about 350 watts. LLC resonant converter is prospective solution for similar applications. The general advantages are that the power MOSFETs are working on zero voltage switching condition, which reduce the switching loss and improve EMI performance. The detailed design for the LLC resonant tank characteristics presented in this paper, which fully guarantees the ZVS condition. This study is based on replacing the rectifier and load by an equivalent resistance applies the first harmonics approximation and the assumption that the current trough the diodes of the output rectifier has a sinusoidal waveform.
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Characterization of the Interaction Between Dbf4 and Rad53 During Replication Stress in Budding YeastMatthews, Lindsay A. 04 1900 (has links)
<p>All living things must replicate their DNA. Despite being essential for life, this process is also inherently dangerous. Replication stress, which induces replication fork stalling, is an unavoidable risk that can trigger potentially harmful changes to the genome. Eukaryotes have a replication checkpoint pathway that stabilizes stalled replication forks to prevent damage. One of the critical protein interactions in this pathway, between Dbf4 and Rad53, pauses the cell cycle in budding yeast. This is important to give the cell time to recover from stress. The molecular details of this interaction were investigated to shed light on how this association is regulated by the cell. The structure of an N-terminal domain from Dbf4 was solved through X-ray crystallography and discovered to have a modified <em>BR</em>CA-1 <em>C</em>-<em>t</em>erminal (BRCT) fold, which included an additional N-terminal helix. This domain could interact with the <em>F</em>ork<em>H</em>ead <em>A</em>ssociated 1 (FHA1) domain from Rad53 <em>in vitro</em>, and the additional helix was necessary for complex formation. Although the FHA1 domain has a well-characterized binding site for phospho-epitopes, a combination of chemical cross-linking and NMR spectroscopy experiments demonstrated that the N-terminal domain from Dbf4 is contacting an alternative surface. However, the full-length Dbf4 protein <em>in vivo</em> may be contacting both this distal site and the phospho-epitope binding pocket. This bipartite interaction between Dbf4 and Rad53 would lend specificity to the complex and also suggests a kinase may be regulating the association. As FHA and BRCT domains are prevalent in eukaryotic nuclear proteins, these findings are instructive for how these domains mediate interactions in other signaling pathways.</p> / Doctor of Philosophy (PhD)
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Weekly headache in children and adolescents: Biopsychosocial correlates and their specificity / Wöchentlicher Kopfschmerz bei Kindern und Jugendlichen: Biopsychosoziale Korrelate und deren SpezifitätMorris, Lisette 03 May 2006 (has links)
No description available.
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Beeinträchtigung und Selbstwirksamkeitserwartung bei chronischen RückenschmerzpatientInnen / Disability and self-efficacy in patients with chronic low back painWendt, Andrea 29 June 2009 (has links)
No description available.
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The Impact of Policy: How Federal Housing Policy Shapes Citizenship in the United StatesScherer, Abi 17 May 2023 (has links)
No description available.
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Technical Verification and Validation of TIS-B using VDL Mode 4Fredriksson, Daniel, Schweitz, Anders January 2004 (has links)
<p>This report is a technical verification and validation of Traffic Information Service Broadcast (TIS-B) using the data link VDL Mode 4. </p><p>The main objective of the report is to examine the usefulness of TIS-B considering the results from tests performed in the Stockholm Terminal Area and for the Advanced Surface Movement Guidance and Control System (A-SMGCS) at Arlanda airport. The results are compared with the requirements that have been set by the standardisation organisations ICAO, RTCA, Eurocontrol and Eurocae. TIS-B is however such a new concept, so most of the operational requirements have not yet been defined.</p><p>The process for performing the evaluation of TIS-B involves three stages: </p><p>· Study the requirements on TIS-B, ADS-B, radar and A-SMGCS. </p><p>· Verify TIS-B by performing tests at Arlanda airport. </p><p>· Validate the test results through analysis. </p><p>A theoretical study of slot allocation optimisation is performed to decide how the slot allocation is to be implemented. </p><p>The report includes a Functional Hazard Analysis (FHA). The FHA is done to see if the applications for TIS-B are ready for implementation or if more hazard preventing actions has to be taken, before any operational actions can be performed. </p><p>The report also involves a theoretical introduction to Air Traffic Management (ATM), Surveillance techniques and TIS-B. </p><p>All parts included in the report results in conclusions and recommendations regarding the TIS-B service.</p>
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Technical Verification and Validation of TIS-B using VDL Mode 4Fredriksson, Daniel, Schweitz, Anders January 2004 (has links)
This report is a technical verification and validation of Traffic Information Service Broadcast (TIS-B) using the data link VDL Mode 4. The main objective of the report is to examine the usefulness of TIS-B considering the results from tests performed in the Stockholm Terminal Area and for the Advanced Surface Movement Guidance and Control System (A-SMGCS) at Arlanda airport. The results are compared with the requirements that have been set by the standardisation organisations ICAO, RTCA, Eurocontrol and Eurocae. TIS-B is however such a new concept, so most of the operational requirements have not yet been defined. The process for performing the evaluation of TIS-B involves three stages: · Study the requirements on TIS-B, ADS-B, radar and A-SMGCS. · Verify TIS-B by performing tests at Arlanda airport. · Validate the test results through analysis. A theoretical study of slot allocation optimisation is performed to decide how the slot allocation is to be implemented. The report includes a Functional Hazard Analysis (FHA). The FHA is done to see if the applications for TIS-B are ready for implementation or if more hazard preventing actions has to be taken, before any operational actions can be performed. The report also involves a theoretical introduction to Air Traffic Management (ATM), Surveillance techniques and TIS-B. All parts included in the report results in conclusions and recommendations regarding the TIS-B service.
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Therapieziele in der psychosomatischen Rehabiliation / Treatment goals in psychosomatic rehabilitationBerking, Matthias 20 January 2004 (has links)
No description available.
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Therapieprozess- und Ergebnisforschung in der Ambulanten Langzeit-Intensivtherapie für Alkoholkranke (ALITA) / Therapy process and outcome research on the Outpatient Longterm Intensive Therapy for Alcoholics (OLITA)Stawicki, Sabina 02 May 2007 (has links)
No description available.
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Evaluation neuroprotektiver Strategien am Beispiel ausgewählter neurodegenerativer Erkrankungen: Amyotrophe Lateralsklerose und Alkoholabhängigkeit / Evaluating neuroprotective strategies in neurodegenerative diseases: amyotrophic lateral sclerosis and alcohol dependenceBartels, Claudia 02 May 2007 (has links)
No description available.
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