Дисертації з теми "VDOS"
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Scott, Derek. "Visual search and VDUS." Thesis, Durham University, 1991. http://etheses.dur.ac.uk/6200/.
Повний текст джерелаEnderby, Glenn E. "Design facility utilizing VDTs /." Online version of thesis, 1989. http://hdl.handle.net/1850/10920.
Повний текст джерелаSjögren, Anders, Daniel Svernell, and Merin Kuduk. "VD:s ord i förändring : En studie om förändringar av VD:s ord i årsredovisningar före och efterfinanskrisen 2008." Thesis, Örebro universitet, Handelshögskolan vid Örebro Universitet, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-33548.
Повний текст джерелаDavies, J. T. "Two-dimensional numerical simulation of VDMOS transistors." Thesis, University of Liverpool, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372695.
Повний текст джерелаSteenberg, Axel, and Emelie Ålund. "Börsens reaktion på tillkännagivanden av kvinnliga VD:s." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388384.
Повний текст джерелаNyman, Wänseth Evelina, and Lundberg Christoffer Etminan. "Kvinnliga vd:s och lönsamhet : En studie om vilken påverkan kvinnliga vd:s har på lönsamheten för bolag noterade på svenska börser." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-435367.
Повний текст джерелаNyberg-Nilsson, Stefan, and Bhupinder Singh. "Granskning av VD:s rörliga lön : ur ett aktieägarperspektiv." Thesis, Södertörn University College, School of Business Studies, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:sh:diva-751.
Повний текст джерелаBakgrund och problem: Det har länge varit populärt bland de inhemska börsbolagen att använda olika typer av ersättningar som ett sätt att motivera sina anställda. Under början av 2000-talet uppdagades ett antal bolagsskandaler som gjorde att allmänheten började se bonus
som ett begrepp för ohederlighet. Bland förlorarna i dessa skandaler var aktieägarna som när kurserna föll förlorade de delar av sitt sparade kapital.
Syftet och avgränsningar: Syftet med denna undersökning är att utifrån ett aktieägarperspektiv undersöka hur den kortsiktiga rörliga ersättningen för svenska börsföretags verkställande direktörer förhåller sig till ägarnas intressen. Samt att analysera hur detta har ändrats över tiden. Undersökningen kommer enbart att omfatta rörlig lön till företagens verkställande direktörer på Stockholmsbörsens A-lista.
Metod: Den data som kommer att inhämtas i den här uppsatsen kommer ifrån årsredovisningar, artiklar och en intervju. Vi har själva handplockat de 16 bolag utav 33 bolag som finns på stockholmsbörsens A-lista som har olika verksamhetsinriktningar.
Slutsats: Undersökningen visar att majoriteten av de undersökta företagen följer aktiespararnas rekommendationer om hur den rörliga lönen skall beräknas. Vi anser dock att som bonusprogrammen är utformade idag är den rörliga lönen oftast en mer lönsam affär för
den verkställande direktören än aktieägarna. Den rörliga lönen ökar ofta med det mångdubbla mot vad som presteras gentemot företag.
Konradi, Alexander V. "Performance optimization of the VDFS verified file system." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113179.
Повний текст джерелаCataloged from PDF version of thesis.
Includes bibliographical references (pages 51-54).
Formal verification of software has become a powerful tool for creating software systems and proving their correctness. While such systems provide strong guarantees about their behavior, they frequently exhibit poor performance relative to their unverified counterparts. Verified file systems are not excepted, and their poor performance limits their utility. These limitations, however, are not intrinsic to verification techniques, but are the result of designing for proofs, not performance. This thesis proposes a design for large files and in-memory caches that are amenable both to a high-performance implementation and proofs of correctness. It then describes their usage in VDFS, a verified high-performance file system with deferred durability guarantees. The evaluation of VDFS' performance shows that these additions measurably improve performance over previous verified file systems, and make VDFS competitive with unverified file system implementations. This thesis contributes implementation techniques for large files and in-memory caches that can be applied to increase performance of verified systems..
by Alexander V. Konradi.
M. Eng.
M.Eng. Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science
Kassmi, Kamal. "Transistors VDMOS pour amplification de puissance en bande UHF." Toulouse 3, 1993. http://www.theses.fr/1993TOU30137.
Повний текст джерелаNiklas, Wahlgren, and Bengtsson Anders. "Påverkar företagets externa miljö VD:s ersättning? : En studie om styrelsens övervaknings- och resursgivarroll samt företagets externa miljö och dess inverkan på VD:s ersättning." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-64491.
Повний текст джерелаBackground: Debates regarding CEO's compensation level became a hot topic in Sweden during the 21st century, when audits and information regarding compensation to Swedish business leaders came true. The CEO's compensation remains valid after several decades of research. Purpose: The purpose of the study is to investigate how the overall compensation level of Swedish CEOs is influenced by the Board's monitoring and resource role, and taking into account the rate of change in the company's external environment. Method: We have applied a quantitative method with a deductible approach. The study's tests are made from data of 250 companies distributed on Large, Mid and SmallCap in years 2010-2012. Result: The monitoring role of the Board has a negative effect, while the Board's resource-giving role has a positive effect on total compensation to the CEO. The study failed to demonstrate that the moderating variable, sales growth, affected total compensation to the CEO
Lajoie, Mary Lou Monique. "The effects of reading from VDTs on the transient visual system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29999.pdf.
Повний текст джерелаViktorsson, Milton, and Marie Dunsjö. "VD-ordet i fokus : VD:s och investerares perspektiv på VD-ordet." Thesis, Karlstads universitet, Handelshögskolan (from 2013), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-68804.
Повний текст джерелаThe CEO-letter in listed companies’ annual reports has developed into one of the parts that is most frequently read and which often is considered to have a big impact on companies’ stakeholders. What the purpose is with the CEOletter and how the creating process goes to establish it is something which previous studies is ambiguous about, as well as how investors perceive the text. By examining the CEO and investor perspective this study intends to fill the gap from the previous studies, and thereby enhance the comprehension about the CEO-letter. Thus, the purpose of this study is from a CEO perspective contribute with knowledge about the content and the process of the CEO-letter, as well as bring an understanding about how investors perceive these parts. In order to achieve the purpose, qualitative interviews have been made with six respondents from public companies as well as with five private investors. An important conclusion is that CEO’s publish the CEO-letter with the purpose to contribute to a complete image of the company in the annual report by explaining the numbers and guide about the future. It is moreover an important part to mediate a positive image of the company. The publishing of the CEO-letter can furthermore be attributable to legitimacy reasons, because the companies respond through the CEO-letter to the demands which the society has. It is rarely the CEO himself that writes the CEO-letter, it is rather an internal coworker or an external bureau who writes the text, based on the CEO’s thoughts. The investors perceive the CEO-letter as guidance towards the numbers which also enable them to create an overall feeling about the company and their possibilities to create future value. The fact that the CEO rarely writes the letter is something which the majority of the investors consider to be something that lowers the trustworthiness of the CEO-letter and thereby also the extent which they put on the text.
Warfving, Simon, Gustav Mogensen, and Samuel Jarness. "Fallstudie i en VD:s möjligheter och begränsningar att förändra en organisation." Thesis, Linnéuniversitetet, Institutionen för organisation och entreprenörskap (OE), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-95991.
Повний текст джерелаGrujicic, Julian. "A feasibility study for a satellite VHF Data Exchange System (VDES)." Thesis, KTH, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-262890.
Повний текст джерелаTransport globalt till havs ökar varje år och förväntas fortsätta att öka de följande årtiondena. Följaktligen finns ett behov av att etablera över horisonten kommunikation genom det automatiska identifieringssystemet (AIS) och det väldigt högfrekventa datautbytessystemet (VDES), under utveckling, för att spåra och kommunicera med fartyg över hela världen oberoende av avståndet från land. I detta examensarbete har en förstudie utförts för utvecklingen av ett system som uppfyller detta behov. Systemet föreslås bestå av en låg jordbana satellitkonstellation som kontinuerligt tillhandahåller VDES-kommunikation över hela världen. Ett systemtekniskt tillvägagångssätt har följts, intressenter har identifierats och utifrån dessa har systemkrav tagits fram. De viktigaste intressenterna befanns vara användare/kunder, satellitleverantören, satellitoperatören, tjänsteleverantören och nyttolastleverantören. Vidare lyftes olika möjliga användningsområden för systemet fram och en systemarkitektur framställdes vari systemet delades in i tre segment: rymdsegmentet, marksegmentet och uppskjutningssegmentet. Dessutom genomfördes designförslag för en satellitkonstellation samt en typisk satellit i en sådan konstellation. Satellitkonstellationen föreslogs bestå av 91 satelliter på en altitud på omkring 550 km i polära banor med gemensam inklination, detta var gällande för en minimum elevationsvinkel på 10 grader. Satelliten rekommenderades bestå av en 6 U CubeSat med den befintliga luftburna transpondern R5A från Saab TransponderTech som nyttolast, vilken bygger på mjukvaruradioteknik och är tänkt att vidareutvecklas för VDES-applikationer. Vidare, implementerades en länk- och data budget. Olika uppskjutningsmöjligheter undersöktes, varav slutsatsen att uppskjutning som sekundär nyttolast på ett delningsuppdrag eller som primär nyttolast medhjälp av ett mindre uppskjutningsfordon anpassat för små satelliter var de föredragna alternativen. Även en marknadsanalys har genomförts, där det redogjorts för hur många AIS / VDES - satelliter som har uppskjutits i LEO och av vilken tjänsteleverantör, samt ytterligare detaljer om små / nano satelliter av extra intresse för arbetet. En kort riskbedömning har också gjorts, där de mest uppenbara riskerna med utveckling, drift och undanröjande av systemet identifierats. Dessutom diskuteras Saabs möjliga roll i utvecklingen av satellit VDES. Slutsatsen av detta arbete har visat att det är möjligt att bygga en global kontinuerlig satellitkonstellation i låg jordbana med en mjukvaruradio som nyttolast som tillhandahåller VDES-tjänster till fartyg på öppna hav.
Skenning, Daniel, and Tomislav Nizic. "Hur påverkar styrelsen och ersättningsutskottet nivån och strukturen på VD:s ersättning? : En studie av svenska börsnoterade bolag." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-35629.
Повний текст джерелаThe object of establishing associations is to lower market transactioncosts and to gain in productivity. The aim of the corporation is to generate profit and enhance shareholder value, but the separation of ownership and control can create diverge self interests within the corporation. Compensation to the CEO and senior management is an instrument to coordinate long term interests with the shareholders of the corporation. Finally, the board of directors and remuneration committe should design a CEO compensation structure that benefits the shareholders of the corporation, independently determined from CEO’s personal influence.
Djellabi, Kamel. "Propriétés statiques et dynamiques du transistor VDMOS de puissance à miroir de courant." Toulouse 3, 1992. http://www.theses.fr/1992TOU30016.
Повний текст джерелаHjelm, Erik, and Gustaf Lind. "Aktieåterköp i Sverige : Hur marknadsreaktionen på aktieåterköp påverkas av åldern bland styrelser och VD:s." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-417659.
Повний текст джерелаFajardo, Gabriela Isabel. "Physical and Chemical Soil Properties of Ten Virginia Department of Transportation (VDOT) Mitigation Wetlands." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/31304.
Повний текст джерелаMaster of Science
Sternegård, Alma, and Felicia Karlsson. "Mångfald i företagsledningen : En studie utifrån vd:s, styrelseordförandens och styrelsens generationstillhörighet i svenska börsnoterade företag." Thesis, Linnéuniversitetet, Institutionen för ekonomistyrning och logistik (ELO), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-86084.
Повний текст джерелаBackground and problem: The background to this study lies in the lack of diversity in Swedish top management teams. In order to create a greater understanding of the recruitment of individuals to the top management team, it can thus be of importance to study the individuals who appoint the management, that is, the CEO, the chairman of the board and the board. These leading positions are expected to be influenced by significant events and experiences in their formative years, thus forming unique values which can affect their choice of individuals to the top management team. It is therefore interesting to understand whether and, if so, how leading positions' generation affiliation can explain the diversity in top management teams. Purpose: Our purpose is to explain whether and how leading positions such as the CEO's, the Chairman’s of the Board and the Board of Directors generation affiliation can explain the diversity in top management teams. Method: The study is based on existing theory and has a deductive approach, with a theoretical basis based on group conflict theory, social identity theory, homosocial reproduction, legitimacy theory and institutional theory. Hypotheses are formulated on the basis of the CEO's, the Chairman's and the Board's generation affiliation in order to study whether different generations have different values which in turn can explain the diversity of the top management team. The thesis is quantitative and studies all Swedish listed companies on large, mid and small cap for the years 2007 and 2017. Results and conclusion: It can be concluded that the leading positions generation affiliation can not explain the diversity in top management teams. Instead, this study sees tendencies of homosocial reproduction when recruiting individuals to top management teams.
Halldin, Ida, and Charlotta Hägg. "Har upplysningar trissat upp VD:s ersättning? : En granskning av tilläggsupplysningarnas påverkan på ersättningen till verkställande direktör." Thesis, Linköpings universitet, Företagsekonomi, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129620.
Повний текст джерелаProblem In 2006, a change in the law was introduced regarding disclosure about CEO compensation. The CEO compensation now had to be specified in the disclosure. The law was introduced by politicians who wanted to restrain the CEO compensation, which had affected the business community negative. However, opinions made against the change in the law claim that it is counterproductive and instead of decreasing the compensation, the law has increased the CEO compensation. Purpose The purpose of the study is to explain if there is a connection between the development of the CEO compensation and the requirement of disclosures. Method The study is based on a quantitative method and a pooled approach. Two hypotheses were derived from existing theory and previous research. The hypotheses were tested against data collected from 573 annual reports, spread over three years. Conclusion A significant connection was found and it says that the CEO compensation has increased since 2006. The result is supported by previous research and theories that the study is based on. The aim of the legislative change has therefore failed.
Matthias, Robert D., and John P. Becker. "Virtual Desktop Infrastructures (VDIs) Supporting Agile Sea Basing A Study on Improving Embarkable Integration Onboard Amphibious Flagships." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/6829.
Повний текст джерелаEdström, Simon. "Analys av Solvens 2 regelverkets inverkan på styrelse och VD:s externa skadeståndsansvar vid överträdelse av tillsynsmyndighets föreskrifter." Thesis, Stockholms universitet, Juridiska institutionen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-135874.
Повний текст джерелаBoström, Conny, and Christer Jonsson. "Bonus efter prestation? : En studie av sambandet mellan VDs bonus och företagets prestation." Thesis, Umeå University, Umeå School of Business, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-26773.
Повний текст джерелаBland dagens stora företag och internationella koncerner har inte ägarna alltid möjligheten eller viljan att leda bolaget. Eftersom VD är utsedd att leda företaget är det viktigt att motivera denne att göra ett bra arbete som gynnar ägarna. Vanligt förekommande är därför att utforma en ersättning med både fasta och rörliga delar.
Ersättningar till VD som forskningsområde har utvecklats starkt sedan 1980-talet då företagens användande av bonus ökade kraftigt. Många forskare har sedan dess undersökt olika former av samband mellan bonus och prestation, men det råder delade meningar om hur dessa samband ser ut. Det står dock klart det finns många olika variabler att undersöka och att valet av variabler har en avgörande effekt på studiens resultat. Detta leder till problemformuleringen Hur påverkas VDs bonus av förändringar i företagets prestation i de stora svenska börsbolagen? Syftet med studien är att förklara hur sambandet ser ut mellan VDs bonus och företagets prestation.
I den teoretiska referensramen belyser vi de problem som kan uppstå mellan ägare och VD och hur deras relation kan se ut. Agentteorin fokuserar på ekonomiska incitament till skillnad från stewardshipteorin som lägger fokus på icke-ekonomiska incitament. Vidare visar vi på anledningar till varför bonus används och vad denna syftar att uppnå. Samt vilka olika former som bonusersättningen kan anta. Kortsiktiga incitament är främst den årligt förekommande rörliga ersättningen, medan optioner i olika former är vanligt förekommande som långsiktiga incitament. Slutligen presenterar vi det viktiga avsnittet om tidigare forskning inom bonusområdet och visar att meningarna är delade såväl om bonusens nytta som om dess effekter. Dock verkar många forskare anse att någon form av samband finns mellan VDs bonus och företagets prestation. Genom att belysa andra forskningsresultat sätter vi vår egen undersökning i ett större perspektiv, tidigare forskning blir en grundsten, samt att detta hjälper oss att motivera valet av undersökningsmetod och variabler.
Då vi utgår från en positivistisk kunskapssyn angriper vi problemet med ett deduktivt angreppssätt. Genom en kvantitativ metod undersöker vi en population på Stockholmsbörsens Large Cap-lista. Genom regressionsanalys testas fem olika hypoteser angående sambandet mellan ersättning och prestation.
Resultaten visar att det finns svaga positiva samband mellan VDs rörliga ersättning och företagets prestation, samt att dessa samband blir något tydligare när optionsprogrammen tas med som dummyvariabel. Däremot varierar graden av samband mycket mellan olika år varför det inte går att se någon trend över hur detta samband utvecklas över tiden.
El, Omari Hafsa. "Extraction des paramètres des modèles du VDMOS à partir des caractéristiques en commutation : comparaison avec les approches classiques." Lyon, INSA, 2003. http://theses.insa-lyon.fr/publication/2003ISAL0040/these.pdf.
Повний текст джерелаThe study is about the analysis and the characterization of the VDMOS. First part of the text recalls the structure, the behavior and the modeling of the VDMOS. A semi-behavioral model, "2KP-model", has been selected. Experimental characterizations have been done in I-V, C-V and switching mode of operation. The role of pulse duration has been studied for quasi-static I-V characterization. Second part describes classical characterization and parameter extraction techniques applied to VDMOS models. Comparisons between simulations and measurements in switching mode operation in an R-L circuit are achieved. Third part corresponds to parameter extraction of the VDMOS model based on R-L switching measurements. Transient measured signals in such conditions yield sufficient information for the parameter extraction. An automatic identification procedure, based on optimization of the difference between measurements and simulation, has been applied. So comparison between PACTE simulations and experiments has been done. The obtained results show equivalence with respect to classical method. The interest of the proposed method is a drastic reduction of measurement noise
El, Omari Hafsa Morel Hervé. "Extraction des paramètres des modèles du VDMOS à partir des caractéristiques en commutation comparaison avec les approches classiques /." Villeurbanne : Doc'INSA, 2005. http://docinsa.insa-lyon.fr/these/pont.php?id=el_omari.
Повний текст джерелаKarlsson, Josefine, and Lundström Niklas. "Kvinnor i företagsledningar : En studie om hur kvinnliga vd:s och styrelseordförande påverkar lönsamheten i bolag noterade på Stockholmsbörsen." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-402723.
Повний текст джерелаArcella, Joseph Louis. "Comparative Analysis of Current Performance-Based Maintenance Methods to Improve Virginia Highways." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/19321.
Повний текст джерелаMaster of Science
Downing, Jacqueline Victoria. "The effects of age, illumination, and anti-glare treatments on visual task performance and perceived image quality with VDTs." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54347.
Повний текст джерелаPh. D.
Alwan, Mohamad. "Contribution à l’étude de l’impact des dégradations d’origines électriques et thermiques sur les performances du transistor VDMOS de puissance." Rouen, 2007. http://www.theses.fr/2007ROUES027.
Повний текст джерелаThe power electronics modules are required to be strongly integrated and led to their capacity limits of operation. In addition, these modules are often subjected to several thermal environments which can deteriorate the semiconductors properties, and even to destroy them. The temperature can play an essential part in the degradation mechanisms. This work consists to take into account the degradation mechanisms in microelectronics components, like Power VDMOS, on their electric performances. A numerical analysis has been performed to evaluate the thermal stress effect on static and dynamic characteristics of VDMOS power FET’s. Under thermal stress conditions, some modifications of physical and electrical VDMOS properties are observed. We analyse, theoretically and numerically, parameters responsible of these modifications. Approximate expressions of the ionization coefficients and breakdown voltage in terms of temperature are proposed. Non-punch-throughjunction theory is used to express the breakdown voltage and the space charge extension with respect to the impurity concentration and the temperature. The capacitances of the device have been also studied. The effect of the stress on C-V characteristics is observed and analyzed. We notice that the drain-gate, drain-source and gate-source capacitances are shifted due to the degradation of device physical properties versus thermal stress. In a wide field of experimental conditions, we propose, by deepened physical analyses and 2D simulations (Silvaco), to highlight these phenomena of degradation being able to cause failures of the devices and microelectronics systems containing VDMOS. We have studied the effects of High Electric Field Stress (HEFS), thermal operating, Bias Temperature Instability (BTI) and Bias thermal cycling in threshold voltage and gate charge of n-channel Power VDMOSFETs. The gate charge characteristics and C-V capacitance have been investigated during stress. It is shown that the main degradation issues in the Si Power VDMOSFETs are the charge trapping and the trap creation at the interface of the gate dielectric induced by energetic free carriers which have sufficient energy to cross the SiO2/Si barrier
Bell, Erik, Carl Nilsson, and David Uddmyr. "Vd:s ersättning och företags lönsamhet : En studie om sambandet mellan ersättning till verkställande direktör och företags lönsamhet för bolag på OMXS30." Thesis, Örebro universitet, Handelshögskolan vid Örebro Universitet, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-86077.
Повний текст джерелаMartineau, Donatien. "Caractérisation de l'endommagement de composants électroniques de puissance soumis à des tests de vieillissement accéléré." Thesis, Toulouse, INSA, 2011. http://www.theses.fr/2011ISAT0004/document.
Повний текст джерелаIntegration of power electronic devices in automotive applications requires a perfect knowledge of their reliability as these components are subjected to more drastic electrothermal stresses. This study aims at determining the physical mechanisms responsible for degradation and failure of modern MOSFET-based power microprocessors during accelerated and controlled fatigue tests.After a description of the recent developments in power electronics that led to today's SmartMos technology from Freescale Semiconductor, the different microstructural characterizing techniques (SAM, SAT, SEM, SIM, TEM, …) and the specific scale for which they are used are detailed.The accelerated ageing of the components were carried out on a fatigue bench to evaluate the component lifetime according to parameters such as the temperature, current and pulse durations. A complete analysis of failed components showed that the area which is primarily affected by the electro-thermal cycling is the metal source that includes aluminum metallization and connection wires. In controlled ageing tests, we showed that the drain-source resistance (Rdson) increase was due to the metal source resistance augmentation. This phenomenon is linked to the degradation of the Aluminum layer that happens through grains division and crack propagation along the grain boundaries
Palmqvist, Max, and Rembe Agnes Lundström. "Kvinnor i styrelsen för ökad stabilitet? : En kvantitativ studie av hur åldersspridning och kvinnonärvaro i svenska börsbolagsstyrelser kan påverka stabiliteten i vd:s position." Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-230115.
Повний текст джерелаThornton, Nathan Paul. "Live Load Testing of Appalachia, Va Concrete Arch Bridges for Load Rating Recommendation." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/35195.
Повний текст джерелаTwo adjoining open spandrel reinforced concrete arch bridges in downtown Appalachia, Virginia were selected for live load testing by Virginia Department of Transportation (VDOT). Both bridges have supported an increasing amount of extreme coal truck traffic throughout their service life and are essential to the efficient transport of coal in the region. Because of their age, having been built in 1929, and the amount of visible damage and repairs, VDOT was concerned about their remaining capacity and safe operation.
The live load tests focused on global behavior characteristics such as service strain and deflection as well as local behavior of the arches surrounding significant repairs. It was found that the strain and deflection data collected during load testing displayed linear elastic behavior, indicating excess capacity beyond the test loads. Also, given the loading applied, the measured strains and deflections were small in magnitude, showing that the bridges are still acting as stiff structures and are in good condition.
Data collected during these tests was compared to results from a finite element model of the bridges to determine the coal truck size which is represented by the live load test loading configurations. The model comparisons determined the test loads produced comparable deflections to those produced by the target coal truck load. Through this approach, a recommendation was given to VDOT regarding the satisfactory condition of the aging bridges to aid in the process of load rating and maintenance scheduling for the two bridges.
Master of Science
Sphabmixay, Kim Huyen. "Etude de convertisseur à interrupteurs bidirectionnels bicommandables constitués de transistor vdmos à miroir de courant : Contribution à la reproduction de diode de synthèse par commande adaptée." Montpellier 2, 1994. http://www.theses.fr/1994MON20213.
Повний текст джерелаConesa, Milián Laura. "Synthesis of combretastatin analogues with antineoplastic properties." Doctoral thesis, Universitat Jaume I, 2019. http://hdl.handle.net/10803/667097.
Повний текст джерелаEsta tesis doctoral se enmarca en el campo de la química médica y farmacológica. Tiene como objetivo la síntesis, caracterización y evaluación biológica de tres familias de derivados de aminocombretastatina, compuesto con propiedades antimitóticas y antiangiogénicas. El primer grupo contiene una función carbamato en su estructura. Estos se han estudiado como agentes antimitóticos y disruptores de la vasculatura. La segunda familia se ha diseñado a partir del fármaco sorafenib, con el objetivo de estudiar sus efectos antiangiogénicos. Respecto a la tercera familia, se trata de compuestos multidiana, con propiedades antiangiogénicas e inmunomoduladoras. Finalmente, se han desarrollado estudios in vivo con el objetivo de conocer todas las perspectivas de un proceso de evaluación biológica. Como conclusión, destacar que a partir de una misma estructura general se han obtenido varios compuestos que interactúan con diferentes dianas involucradas en la enfermedad del cáncer, mejorando así pues el efecto ofrecido por la aminocombretastatina.
Prévost, Gwenae͏̈l. "Etude des corrélations entre les effets de la dose cumulée et du stress électrique sur les transistors VDMOS de puissance par une méthode originale de pompage de charge." Montpellier 2, 1997. http://www.theses.fr/1997MON20061.
Повний текст джерелаTikkala, Emma, and Fanny Westerlund. "Få kvinnor på toppen - hur ska vi få det mer jämställt? : En kvalitativ studie om vilka faktorer och strategier som är avgörande för att kvinnor ska uppnå en VD-position på Stockholmsbörsen." Thesis, Umeå universitet, Företagsekonomi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-185268.
Повний текст джерелаMarcault, Emmanuel. "Contribution à l'intégration d'un indicateur de vieillissement lié à l'état mécanique de composants électroniques de puissance." Phd thesis, INSA de Toulouse, 2012. http://tel.archives-ouvertes.fr/tel-00728764.
Повний текст джерелаLee, Jaesup. "Comparison of GPS-Equipped Vehicles and Its Archived Data for the Estimation of Freeway Speeds." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14549.
Повний текст джерелаArtola, Such Francisco Javier. "Free-boundary simulations of MHD plasma instabilities in tokamaks." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0441/document.
Повний текст джерелаOne of the most promising concepts for future fusion reactors is the tokamak. In these devices, a hot ionized plasma is confined with the use of large magnetic fields. The subject of this thesis is the study of a particular type of tokamak instabilities with MagnetoHydroDynamic (MHD) simulations. The code JOREK-STARWALL is adapted and applied to the simulation of the so-called free-boundary instabilities. The investigation of this type of instabilities requires a special treatment for the plasma boundary conditions, where the interaction of the plasma with the vacuum and the surrounding conducting structures needs to be taken into account. In this work, the modelling of the electromagnetic plasma-wall-vacuum interaction is reviewed and generalized for the so-called halo currents. The adapted JOREK-STARWALL code is applied in order to study the physics of two particular free-boundary instabilities: Edge Localized Modes (ELMs) triggered by vertical position oscillations and Vertical Displacement Events (VDEs). Two major results are obtained: 1. The triggering of ELMs during vertical position oscillations is for the first time reproduced with self-consistent simulations. These allow for the investigation of the physical mechanism underlying this phenomenon. The simulations reveal that for the international ITER project, a large-scale tokamak, these triggered ELMs are mainly due to an increase in the plasma edge current due to the vertical plasma motion. 2. For VDEs, several benchmarks are performed with other existing MHD codes showing a good agreement and therefore allowing the performance of ITER simulations to estimate the expected amount of halo currents in ITER
Luu, Aurore. "Méthodologie de prédiction des effets destructifs dus à l'environnement radiatif naturel sur les MOSFETs et IGBTs de puissance." Phd thesis, Université Paul Sabatier - Toulouse III, 2009. http://tel.archives-ouvertes.fr/tel-00512340.
Повний текст джерелаZerarka, Moustafa. "Étude des régimes extrêmes de fonctionnement en environnement radiatif des composants de puissance en vue de leur durcissement pour les applications aéronautiques et spatiales." Phd thesis, Université Paul Sabatier - Toulouse III, 2013. http://tel.archives-ouvertes.fr/tel-00874051.
Повний текст джерелаMorancho, Frédéric. "Le transistor MOS de puissance à tranchées : modélisation et limites de performances." Phd thesis, Université Paul Sabatier - Toulouse III, 1996. http://tel.archives-ouvertes.fr/tel-00165581.
Повний текст джерелаBerthou, Maxime. "Implementation of high voltage Silicon Carbide rectifiers and switches." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00770661.
Повний текст джерелаBeydoun, Bilal. "Simulation et conception des transistors M. O. S. De puissance." Toulouse 3, 1994. http://www.theses.fr/1994TOU30163.
Повний текст джерелаLIN, JIN-YI, and 林進益. "Trench VDMOS technology." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/55996905792728545151.
Повний текст джерела林祐弘. "Simulation for the VDMOS Characteristics." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/07815205800764338600.
Повний текст джерелаLee, Ming Chia, and 李明家. "Effects of Gate Length on VDMOS." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/27451487368572404020.
Повний текст джерела國立清華大學
電機工程研究所
83
Due to the advancement in processing technology, MOSFET's Metal- Oxide-Semiconductor Field Effect Transistors) have been progressively improved to have appreciable on-state current- carrying and off-state voltage-blocking capabilities. These capabilitiies have increased primarily through the use of double-diffusion techniques to get short active channels. In the vertical double-diffused MOSFET (VDMOS), a lightly doped drift region between the channel and the drain contact, could support a large applied voltage. In this thesis, we have fabricated VDMOS with various gate lenghts. Current density is found to increase as the gate length increases but the on-resistance decrease. However, the transistor size increases due to larger gate length. An optimization method to obtain the most efficient use of the silicon area for the required current is proposed.
Fu, Suji. "60V VDMOS design and fabrication for automotive applications." 2005. http://proquest.umi.com/pqdweb?did=1166577531&sid=2&Fmt=2&clientId=12520&RQT=309&VName=PQD.
Повний текст джерелаHung, Jui Lung, and 洪瑞隆. "A study of display evaluation on Chinese VDTs." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/17160627287182622931.
Повний текст джерела東吳大學
管理科學研究所
81
This study tries to find suitable display evaluating model on Chinese VDTs to decrease the inconvience in Rapid-Protyping . The model consists of four estimators including overall density, grouping, justifying and balance. For evaluating the model, 16 graduate students participated in an experiment which contained 16 different display types for train schedules. The results indicated that overall density and grouping have signi- ficant effectiveness in response time; and grouping, justifying and balance have significant effectiveness in subjective ranking . Based on this result, an automatic evaluating model is able to be constructed to increase operational convience for users and designing efficiency for designers.