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Rozprawy doktorskie na temat „Power Trains”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 31 stycznia 2023

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1

Anun, Matias. "Electric vehicle power trains : high-performance control for constant power load stabilization." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/50093.

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The development of sustainable transport systems has experienced great improvements in the last 15 years. As a result, electric vehicles, namely hybrid electric vehicles (HEVs) and all-electric or battery electric vehicles (BEVs), are slowly starting to coexist with regular internal combustion vehicles around the world. The complex powering structure of automotive electric systems can be described as a distributed multiconverter architecture. In pursuit of performance, constant-power behavior of tightly regulated downstream converters has raised as an important challenge in terms of system sta

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Diego-Ayala, Ulises. "An investigation into hybrid power trains for vehicles with regenerative braking." Thesis, Imperial College London, 2007. http://hdl.handle.net/10044/1/7407.

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Janakiraman, Venkatakrishna. "Modelling of Steady-State and Transient Power Losses in Planetary Gear Trains." The Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1492510708602145.

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Naylor, Stephen Mark. "On the development of power drive trains for hydrogen fuel cell electric vehicles." Thesis, University of Newcastle upon Tyne, 2014. http://hdl.handle.net/10443/2439.

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The world faces a major problem. Fossil fuel sources are finite and the economic and environmental cost of those that actually remain make finding an alternative one of the great technological challenges of our age. Nearly 70% of refined oil is used for transportation making it one of the key sectors where change could yield large-scale global benefits. Combustion engine passenger vehicle technology is after a long period of stagnation progressing at a pace. Hybrid electric vehicles (HEVs) and battery electric vehicles (BEVs) are also starting to penetrate the mass market. Unfortunately, HEVs

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Zafeiropoluos, Andreas. "An MMC-based topology with Dual-Active-Bridge power channels for load balancing in 50 Hz-railway applications." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201656.

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The purpose of this thesis report is to investigate challenges related to railway electrification. Inac-railway systems, trains are most often single-phase loads, which can create significantunbalances in the grid, when fed directly from two adjacent phases. To enhance power quality atthe railway feeding point, one alternative is to design the system such as the power is fed to thecatenary through Static Frequency Converters (SFCs), which can be a costly solution. Anotheroption is to use Static Compensators (STATCOMs) in shunt connections, handling only theunbalanced amount of power, in order

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Lium, Frode. "30 kW Power Boost System for Drive Trains for Electric Vehicles Based on Supercapacitor Technologies." Thesis, Norwegian University of Science and Technology, Department of Electrical Power Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-9554.

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<p>The goal of the master thesis is to design, dimension and construct a power boost system for the drive trains in electric vehicles, utilizing supercapacitor technology. In order to build the system a supercapacitor bank and a converter has been constructed. The system has been designed to be used in the new Think electric vehicle, and each part of the converter has been dimensioned according to information provided by Think Technology. The master thesis is limited to the design and construction of the power boost system, and the implementation, interfacing and control of power sharing hav

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Bastin, Matthew. "An investigation into the effects of hybrid electric vehicle power-trains on ride and handling." Thesis, University of Warwick, 2014. http://wrap.warwick.ac.uk/67141/.

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Hybrid electric vehicles are becoming increasingly common within the automotive market. Whilst there have been a large number of studies investigating hybrid electric vehicle drive-train control, for efficiency and active safety purposes, there is little work reflecting the effects of such technologies on pure vehicle dynamics. This thesis investigates the effects of hybrid drive-trains on vehicle ride and handling. A specific case study based on the hybridisation of a conventionally powered vehicle into a series hybrid electric vehicle is utilised as a means of doing so. In order to investiga

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Smith, Michael Henry. "Vehicle powertrain modeling and ratio optimization for a continuously variable transmission." Diss., Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/17801.

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Nortemann, Alexander. "Development of a mechatronic transmission control system for the drivetrain of the K71 project." Thesis, Nelson Mandela Metropolitan University, 2014.

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The tractive force has to be interrupted during a gear-shifting operation in a manual vehicle transmission, leading into a decrease of speed while changing gears during the acceleration process. Therefore in a racing application, the shifting time has to be as short as possible so that the required performance of a racing car can be achieved. The following dissertation describes the development of a transmission control system to enable gear changes within a manual gearbox, which was designed for the Formula Student racing series. Various solutions were developed on the basis of reviewed liter

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Pfeiffer, Jakob [Verfasser], Klaus [Akademischer Betreuer] Diepold, Klaus [Gutachter] Diepold, and Dirk [Gutachter] Wollherr. "Self-Learning Enhancement of the Measurement Quality for Electric Power Trains / Jakob Pfeiffer ; Gutachter: Klaus Diepold, Dirk Wollherr ; Betreuer: Klaus Diepold." München : Universitätsbibliothek der TU München, 2021. http://d-nb.info/1237413303/34.

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Rose, Garrett. "Electrical subsystem for Shell eco-marathon urban concept battery powered vehicle." Thesis, Cape Peninsula University of Technology, 2018. http://hdl.handle.net/20.500.11838/2814.

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Thesis (Master of Engineering in Electrical Engineering)--Cape Peninsula University of Technology, 2018.<br>The purpose of this paper was to design and develop an electrical power train for an Urban Concept electric vehicle geared to complete the Shell Eco-Marathon Africa in 2019. Various technologies which make up the electrical drive train of an electrical vehicle were also reviewed which include the battery pack, the battery management system, the motors, the motor management system and the human interface. Upon completion of this, the various topologies best suited for this project were

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Northcote, Nicholas M. "The modelling and control of an automotive drivetrain." Thesis, Stellenbosch : University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/1785.

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Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2006.<br>Shunt and shuffle in a vehicle drivetrain are two driveability related phenomena responsible for driver discomfort. They are experienced as a sharp jerk (shunt) followed by a series of longitudinal oscillations (shuffle) and are induced by a rapid change in engine torque. The use of drive‐by‐wire throttles in modern day vehicles enables the onboard electronic control unit to manipulate the driver’s torque demand befoe sending a revised torque demand signal to the engine. In this way a feedback contro

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13

Burchell, Joseph William. "Advancement of direct drive generator systems for offshore renewable energy production." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/33263.

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As machine topologies and technologies mature, the fundamental function of the device is honed. Direct drive machines have the potential to launch the renewable energy sector into a new era of large scale, reliable, offshore power generation. With advancements in new technologies, such as superconductivity, the reduction of generator mass due to incorporation of machine and device structures, the continued advancements in component and system reliability; direct drive generators have the ability to outsize geared wind systems and simplify submerged linear and rotary power generation. The resea

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14

Hairston, Patrece Gabrielle. "The Power to Promote Justice Program: A Train-the-Trainer Model for the Development of Culturally Competent Teaching Practices Among Secondary Educators." Wright State University Professional Psychology Program / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wsupsych1309535768.

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Brandberg, Magnus, and Niclas Broman. "Future trading with regulating power." Thesis, Uppsala universitet, Institutionen för teknikvetenskaper, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-162825.

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Regulating power is needed to compensate for unplanned deviations from production and consumption plans. The transmission system operator (TSO) in each country is responsible for keeping the electric system balanced, and activates regulation if needed to keep the frequency in the network stable. The need for regulations is assumed to grow if wind power is implemented in the power system, as it is difficult to forecast wind power production and make accurate production plans. This report investigates how trade with regulating power is affected by a large-scale installation of wind power in the

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16

Bryan, Frank Joseph. "Power-train design for small fuel cell vehicles." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/powertrain-design-for-small-fuel-cell-vehicles(11d5884d-2a09-4f11-b1e4-53240abcc74c).html.

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A comparison of two vehicle power-train topologies is performed for a small fuel cell andsupercapacitor powered delivery vehicle to determine the power-train weight and costtrade-off. The topologies use either a single DC-DC converter to interface the fuel cell,with the supercapacitors directly connected to the traction drive, or two convertersseparating both the fuel cell and supercapacitor from the traction drive. Energymanagement strategies are implemented to increase system efficiency at the expense ofincreased supercapacitor storage. The two converter system results in a lower cost and ma

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17

McFarlane, Kate. "Corporeal tracings visuality, power and culture /." Phd thesis, Australia : Macquarie University, 2005. http://hdl.handle.net/1959.14/45968.

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"2004".<br>Thesis (PhD)--Macquarie University, Division of Society, Culture, Media & Philosophy, Department of Critical and Cultural Studies, 2005.<br>Bibliography: p. 315-327.<br>Introduction -- Aporias and openings in the architecture of the mind's eye: deconstructing pure visuality in Descartes -- Visuality, universal flesh and phenomenal circularity: visio-corporeal generality with Merleau-Ponty -- Corporeal envisionings as power-knowledge: Foucault and diffuse visio-governmentality -- The grammatology of visuality: visio-corporealising Derrida's "science" of the trace -- Conclusion.<br>Th

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18

Cheng, Wing Mao John 1960. "Random bilateral trading in power systems." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36798.

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The power industry is undergoing a revolutionary change due to deregulation and associated restructuring. Deregulation is the legislation that governs open access to the transmission grid by competing producing and consuming entities. In this newly-created market structure, bilateral power transactions are emerging as a major trading mechanism. As such, bilateral contracts have become important decision variables in all aspects of power system operation and planning. Consequently, a critical question is how to evaluate the success of any given transaction, especially in the presence of other r

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Логвінова, Наталія Олександрівна, Наталья Александровна Логвинова та Natalia A. Logvinova. "Підвищення ефективності організації руху поїздів на залізничних напрямках з паралельними ходами". Thesis, Державний ВНЗ «Національний гірничий університет», 2013. http://eadnurt.diit.edu.ua:82/jspui/handle/123456789/1732.

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Логвінова, Н. О. Підвищення ефективності організації руху поїздів на залізничних напрямках з паралельними ходами: авт. дис. к. т. н.: 05.22.01 / Н. О. Логвінова ; наук. кер. Р. В. Вернигора ; Дніпропетр. нац. ун-т залізн. трансп. ім. акад. В. Лазаряна. - Д. : Нац. гiрничий ун-т, 2013. - 22 с. : рис. ГРНТИ 73.29.61 УДК 656.222(043.3) Захист 17.10.2013.<br>UK: АНОТАЦІЯ Дисертація присвячена питанням підвищення ефективності організації руху вантажних поїздів на залізничних напрямках з метою визначення раціональних розмірів руху поїздів по паралельним ходам в умовах швидкісного руху пасажир

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Svoboda, Ondřej. "Návrh elektrizace jednokolejné trati." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-400599.

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The main topic of the thesis is the design of single-track electrification of a direct current system of 3 kV and an alternating current system of 5 kV 50 Hz and then economically evaluate it over a period of 30 years. The work deals with basic traction systems and also deals with the calculation of main parameters of electric trains. The thesis describes in detail the procedure for the design of the electrification of the track and a partial introduction to the simulation programs that were used for energy calculations.

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21

Калашников, Костянтин Олексійович, Константин Алексеевич Калашников та Konstantin A. Kalashnikov. "Зменшення втрат електроенергії в тяговій мережі постійного струму шляхом вибору раціональної дислокації тягових навантажень". Thesis, Видавництво Дніпропетровського національного університету залізничного транспорту імені академіка В. Лазаряна, 2014. http://eadnurt.diit.edu.ua:82/jspui/handle/123456789/2010.

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Калашников, К. О. Зменшення втрат електроенергії в тяговій мережі постійного струму шляхом вибору раціональної дислокації тягових навантажень : авт. дис. к. т. н. / К. О. Калашников ; Дніпропетр. нац. ун-т залізн. трансп. ім. акад. В. Лазаряна. - Д. : Вид-во Дніпропетр. нац. ун-ту залізн. трансп. ім. акад. В. Лазаряна, 2014. - 20 с. : іл. ГРНТИ 73.29.71 УДК 621.331:621.311.024(043.3) Захист – 6 березня 2014 р.<br>UK: АНОТАЦІЯ Дисертація присвячена вирішенню актуальної науково-технічної задачі зменшення втрат електроенергії в тяговій мережі постійного струму шляхом вибору раціональної дис

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Boora, Arash Abbasalizadeh. "Flexible high-power multi DC-DC converters for train systems." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/33208/1/Arash_Boora_Thesis.pdf.

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This thesis reports on the investigations, simulations and analyses of novel power electronics topologies and control strategies. The research is financed by an Australian Research Council (ARC) Linkage (07-09) grant. Therefore, in addition to developing original research and contributing to the available knowledge of power electronics, it also contributes to the design of a DC-DC converter for specific application to the auxiliary power supply in electric trains. Specifically, in this regard, it contributes to the design of a 7.5 kW DC-DC converter for the industrial partner (Schaffler and As

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Bleynat, Ingrid. "Trading with Power: Mexico City's Markets, 1867-1958." Thesis, Harvard University, 2013. http://dissertations.umi.com/gsas.harvard:10961.

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This dissertation traces the history of Mexico City’s municipal markets from a patchwork of sites of customary trade dating from the colonial era to a network of state-controlled modernist halls in the 1950s. It shows how, as small-scale vendors of tomatoes, straw hats, charcoal and all manner of every-day necessities plied their trade and fought to protect their livelihoods, their interactions with the government and other social groups and classes transformed the city’s markets and shaped the contours of popular politics in modern Mexico. More broadly, it uncovers vendors’ role in the dual p

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Ahlgren, Markus. "Internal Market Risk Modelling for Power Trading Companies." Thesis, KTH, Matematisk statistik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173917.

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Since the financial crisis of 2008, the risk awareness has increased in the -financial sector. Companies are regulated with regards to risk exposure. These regulations are driven by the Basel Committee that formulates broad supervisory standards, guidelines and recommends statements of best practice in banking supervision. In these regulations companies are regulated with own funds requirements for market risks. This thesis constructs an internal model for risk management that, according to the "Capital Requirements Regulation" (CRR) respectively the "Fundamental Review of the Trading Book" (F

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Guzzomi, Andrew Louis. "Torsional vibration of powertrains : an investigation of some common assumptions." University of Western Australia. School of Mechanical Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2008.0032.

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The area of powertrain dynamics has received considerable attention over a number of years. The recent introduction of more stringent emission requirements together with economic pressure has led to a particular focus on increasing powertrain efficiency. This has seen the incorporation of on-board, real-time measurements to predict system behaviour and engine condition. In this domain, accurate models for all powertrain components are important. One strategy to improve accuracy is to evaluate the assumptions made when deriving each model and then to address the simplifications that may introdu

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Hall, Lynsey Sylvia. "Identifying endophenotypes for depression in Generation Scotland : a Scottish family health study." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/28737.

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Depression is the most common psychiatric disorder and the leading cause of disability worldwide. Despite evidence for a genetic component, the genetic aetiology of this disorder remains elusive. To date, only one association study has identified and replicated risk loci for depression. This thesis focuses on aiding genetic discovery by revisiting the depressed phenotype and developing a quantitative trait, using data from Generation Scotland: The Scottish Family Health Study. These analyses aim to test whether this derived quantitative trait has improved statistical power to identify genetic

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Güssow, Jens. "Power systems operation and trading in competitive energy markets /." [S.l.] : [s.n.], 2001. http://aleph.unisg.ch/hsgscan/hm00026945.pdf.

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Levine, Jeremy. "Slow Train Coming: Power, Politics, and Redevelopment Planning in an American City." Thesis, Harvard University, 2016. http://nrs.harvard.edu/urn-3:HUL.InstRepos:33493277.

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Who decides which neighborhoods receive affordable housing, community gardens, or job centers? How do these organizations and agencies get a seat at the decision-making table? And what can urban redevelopment politics tell us about larger links between governance and inequality in American cities? This dissertation, based on four years of ethnographic fieldwork in Boston, addresses these questions and significantly advances our understanding of urban governance and neighborhood inequality. First, I argue that influence over community development plans depends on organizational legitimacy, not

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Axelberg, Peter. "On Tracing Flicker Sources and Classification of Voltage Disturbances." Doctoral thesis, Högskolan i Borås, Institutionen Ingenjörshögskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-3416.

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Developments in measurement technology, communication and data storage have resulted in measurement systems that produce large amount of data. Together with the long existing need for characterizing the performance of the power system this has resulted in demand for automatic and efficient information-extraction methods. The objective of the research work presented in this thesis was therefore to develop new robust methods that extract additional information from voltage and current measurements in power systems. This work has contributed to two specific areas of interest.The first part of the

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Ogden, Lillie. "Exploring Opportunities for Novel Electricity Trading Strategies within a Virtual Power Plant in the European Power Market : New Possibilities in Power Trading Due to the Increased Share of Variable Renewable Energy." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277841.

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This report explores the impacts of variable renewable energy (VRE) on power trading in the European wholesale electricity market. The intricate operation of a typical power exchange in Europe is accompanied by an equally complex balancing system. The increasing amount of VRE in the power system, such as wind and solar power, has far-reaching impacts for power traders in both this electricity market and the corresponding balancing system. As a result, the electricity market is evolving in unprecedented ways and new participants are entering the playing field to capitalize on the changing dynam

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Kufleitner, Manfred. "Logical fragments for Mazurkiewicz traces expressive power and algebraic characterizations /." [S.l. : s.n.], 2006. http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-27812.

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Conway, Robert E. "Power plant and drive train improvements of the NPS Hummingbird remotely piloted helicopter." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA320151.

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Thesis (M.S. in Aeronautical Engineering) Naval Postgraduate School, September 1996.<br>Thesis advisor(s): E.R. Wood. "September 1996." Includes bibliographical references (p. 99-100). Also available online.

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Li, Zheng. "Spur gear teeth contact analysis on power-train transmission noise, vibration and harshness." Thesis, University of Warwick, 2009. http://wrap.warwick.ac.uk/3163/.

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The gear meshing is very complex process as high non-linearity behaviour is involved during the process. Normally most analysis of gear tooth contact is on the basis of a hypothesis that the contacted gear teeth are cantilever beams to obtain the approximate results quickly. However, many important factors have been ignored in simulating gear tooth contact using cantilever beam hypothesis, those factors include tooth profile variations, gear rotation speed and input torque, coefficient of friction and geometry distortion. Many of non-linear responses such as noise, vibration, abrasion and so o

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Crespo, Anadón Javier. "Effects of trans / supercritical behavior of carbon dioxide on power and propulsion applications." Thesis, Massachusetts Institute of Technology, 2018. http://hdl.handle.net/1721.1/120430.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Aeronautics and Astronautics, 2018.<br>Cataloged from PDF version of thesis. "Pages with color images contain background shading/streaking"--Disclaimer Notice page.<br>Includes bibliographical references (pages 85-88).<br>Operating combustors at supercritical conditions has the potential of reducing NOx emissions and enabling a more compact combustor design. However, this can have an impact on the combustion dynamics, and the impact of trans-critical conditions is unknown. A reduced order model framework was developed to assess

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Colt, David E. "The relationship and predictive power of critical thinking skills scores to NATABOC certification examination for athletic training performance scores." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4702.

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Thesis (Ed. D.)--University of Missouri-Columbia, 2007.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file (viewed on month day year) Vita. Includes bibliographical references.

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Scharff, Richard. "Design of Electricity Markets for Efficient Balancing of Wind Power Generation." Doctoral thesis, KTH, Elektriska energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171063.

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Deploying wind power to a larger extent is one solution to reduce negative environmental impacts of electric power supply. However, various challenges are connected with increasing wind power penetration levels. From the perspective of transmission system operators, this includes balancing of varying as well as - to some extent - uncertain generation levels. From the perspective of power generating companies, changes in the generation mix will affect the market's merit order and, hence, their profits. This thesis focuses on provision and use of flexibility in the Nordic electricity market. Fir

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Richardson, Timothy Kevin. "Environmental integration in infrastructure planning : a Foucauldian discourse analysis of the trans-European transport network." Thesis, Sheffield Hallam University, 1999. http://shura.shu.ac.uk/3157/.

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Planning theory is turning again towards the question of power, particularly in relation to recent claims to a new communicative planning 'paradigm'. This thesis investigates how Foucauldian discourse analytics, embracing concepts of discourse, power/knowledge, rationality and space can contribute in sensitising planning research to power. A Foucauldian approach is developed which problematises the construction of rationality in spatial planning processes, focusing on the institutionalisation of rationality in the tools that provide decision-support. The power relations that condition this con

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Rosenberg, Rae. "Trans* individuals in the U.S. prison industrial complex: carceral power, hypermasculinity and transgender subversions." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119754.

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The conditions of incarceration for transgender individuals in the United States have become a concern of activists and scholars. The multiple forms of mistreatment that target transgender prisoners have been noted to include humiliation, harassment, assault, and the denial of various rights. Due to the small scale of the current body of research surrounding incarcerated trans* individuals, my research explores more detailed accounts of incarcerated trans* feminine prisoners across the United States to gather the variety of physical and psychological trauma they endure, as well as other aspect

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Barcellos, Clarice Blessmann e. "Mudrooroo's wildcat trilogy and the tracks of a young urban aborigine system of power relations." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10912.

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Esta dissertação consiste em uma leitura da Trilogia Wildcat, de Mudrooroo. O foco da leitura recai sobre as Relações de Poder e seu impacto sobre os jovens aborígines urbanos australianos. O corpus de pesquisa é formado pelos romances Wild Cat Falling (1965), Wildcat Screaming (1992) e Doin Wildcat (1988). O objetivo é analisar os efeitos das estratégias de poder em indivíduos pós-coloniais que são sujeitos a e fazem uso de mecanismos de poder ao estabelecerem relacionamentos tanto com seus pares quanto com pessoas que representam autoridade. A discussão das relações de poder, de seus mecanis

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Redmond, Jacqueline A. "Planning, trading and competitive issues arising within the U.K. privatised power industry." Thesis, University of Strathclyde, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319982.

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Lukamba, Muhiya Jean-Marc. "Evaluating power trading in selected countries of the Southern African development community." Thesis, Cape Peninsula University of Technology, 2008. http://hdl.handle.net/20.500.11838/1682.

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Thesis (DTech (Public Management))--Cape Peninsula University of Technology, 2008<br>The research explores an evaluation of cross-border electricity trading among countries of the Southern African Development Community (SADC). Understanding this trading achieve through an analysis of various global electricity markets. The research disclose that in the electricity markets in Europe, North America, South America and Asia analysed in this thesis, none managed to successful eliminate power shortages. Their situation, however, is different from that of the Southern Africa Power Pool (SAPP). The ap

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Hughes, Sarah. "A customer-focussed methodology for computer-aided engineering of automotive power train systems : innovation report." Thesis, University of Warwick, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.439588.

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Golestanifar, Hamed. "Damping of electromechanical oscillations in wide-area power systems such as the Trans-Canadian grid." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=95128.

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This thesis presents two methods to damp electromechanical oscillations in large power systems such as Trans-Canadian grid. A control method, used in conjunction with Wide Area Measurement System (WAMS), is proposed to damp very low frequency inter-area modes of very large systems. This Global PSS requires knowledge of the eigenvectors of the targeted modes, and only a limited number of power stations are involved in its feedback loop. It does not destabilize other modes, and its robustness is assured. Besides mathematical proof, a series of simulations are conducted to validate the claims of

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Heuer, Georg. "Development of an operation strategy for electrified auxiliaries in the power train of conventional vehicles." Universitätsverlag der Technischen Universität Chemnitz, 2017. https://monarch.qucosa.de/id/qucosa%3A32081.

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In today's versatile requirements for reducing fuel consumption, a lot of different approaches are in development like hybridization, reducing the amount of cylinders with the same power as before or operating point-independent components and auxiliaries. Within this thesis, one of the approaches is shown: electrified auxiliaries including an operation strategy. Replacing conventional auxiliaries with electrified ones, the need of more electrical power becomes bigger. Due to the limits within the 12V power net, the 48V approach is the logical conclusion in terms of cost benefit and availabili

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Li, Liang. "Experimental and theoretical investigation of CO2 trans-critical power cycles and R245fa organic Rankine cycles for low-grade heat to power energy conversion." Thesis, Brunel University, 2017. http://bura.brunel.ac.uk/handle/2438/14766.

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Globally, there are vast amounts of low-grade heat sources from industrial waste and renewables that can be converted into electricity through advanced thermodynamic power cycles and appropriate working fluids. In this thesis, experimental research was conducted to investigate the performance of a small-scale Organic Rankine Cycle (ORC) system under different operating conditions. The experimental setup consisted of typical ORC system components, such as a turboexpander with a high speed generator, a scroll expander, a finned-tube condenser, an ORC pump, a plate evaporator and a shell and tube

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Kim, Tae-Kyung. "Dynamic analysis of sulfur dioxide monthly emissions in U.S. power plants." Columbus, Ohio : Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1086195964.

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Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xviii, 218 p.; also includes graphics. Includes abstract and vita. Advisor: Jean Michael Guldmann, City and Regional Planning Graduate Program. Includes bibliographical references (p. 130-133).

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Chen, Renjie. "Using PPP deviations as a trading rule : an indirect joint test of PPP and foreign exchange market efficiency." Thesis, University of British Columbia, 1989. http://hdl.handle.net/2429/42010.

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In this thesis an international investment filter rule is used to test both the tendency for Purchasing Power Parity (PPP) to hold in the long run and the hypothesis of foreign exchange market efficiency for the four most actively traded currencies in the world vis-a-vis the United States dollar: the British pound, the Japanese yen, the Germany mark, and the Canadian dollar. One way to examine whether there is a tendency for PPP to hold in the long run and whether the foreign exchange market is efficient, is to place more money in the 'undervalued' currency according to PPP deviations or

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Sàágua, João Guilherme Martins Borges. "Exploring the predictive power of Google searches over the US stock market." Master's thesis, NSBE - UNL, 2014. http://hdl.handle.net/10362/11694.

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A Work Project, presented as part of the requirements for the Award of a Masters Degree in Finance from the NOVA – School of Business and Economics<br>This paper takes search intensity for stock tickers in Google (SVI) as a direct measure of retail investor attention and assesses whether it holds predictive power over short-term market outcomes. In a sample of the most representative US stocks, during the period 2005 – 2008, I provide evidence that (1) surges of investor attention forecast higher stock liquidity and volatility; (2) depending severely on what is considered an abnormal level of

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Adams, Jewel Darlene. "The Relationship of Managers' Power Motivations to Personality Pathology." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/1333.

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Research has shown that managerial leaders have a higher motivational need for power than those in other positions. A leader's personality traits have been shown to affect organizational performance. Leaders who score high in dark traits (undesirable personality attributes shown to predict career derailment across organizations, levels, and positions) could also be more likely to use company resources for personal gain. There is a paucity of research examining the correlation between managerial dark traits and the need for power. The purpose of this study was to examine the relationship betwee

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Marusiak, Jeffrey Alan. "Power train development and testing for a hydrogen fuel cell powered electric hybrid neighborhood electric vehicle." Connect to resource, 2007. http://hdl.handle.net/1811/24536.

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Thesis (Honors)--Ohio State University, 2007.<br>Title from first page of PDF file. Document formatted into pages: contains [64] p.; also includes graphics. Includes bibliographical references. Available online via Ohio State University's Knowledge Bank.

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