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Dissertations / Theses on the topic 'Segmented stator'

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1

Baserrah, Salwa [Verfasser], Bernd [Akademischer Betreuer] Orlik, and Bernd [Akademischer Betreuer] Kuhfuß. "Theoretical and Experimental Investigations of a Permanent Magnet Excited Transverse Flux Machine with a Segmented Stator for In-Wheel Motor Applications / Salwa Baserrah. Gutachter: Bernd Orlik ; Bernd Kuhfuß. Betreuer: Bernd Orlik." Bremen : Staats- und Universitätsbibliothek Bremen, 2014. http://d-nb.info/1072226251/34.

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2

Frost, Emelie, and Jonathan Fredberg. "Construction of a Tool for Assembling Inner Stator Segments for a Wave Power Generator." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-214756.

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A new type of wave power generator is beingdeveloped at KTH. This generator has inner stator segmentswhich consist of strong neodymium magnets and electrical steel.These are glued together in stacks with electrical steel separatingeach magnet, and the magnets are oriented with opposingmagnetic fields to the nearest magnet above and below. Inthis configuration, each piece of electrical steel connected tothe pole of a magnet becomes one pole. 19 magnets and 20pieces of electrical steel compose one phase of 20 poles, andthree phases are then stacked with glass fibre spacers calledphase blocks, cr
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3

Hoe, Ruan. "Is migration a solution to the earnings loss of the displaced workers in the segmented labor market in the U.S.?" Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/40157.

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Earnings loss due to both lower wages at the current job and the time forgone between two jobs is one of the major consequences of job displacement caused by plant closing, moving and downsizing in the 1980s. Is migration a solution? The present study attempts to answer this question empirically by exploring five waves of data on the displaced manufacturing workers from the CPS Displaced Workers Supplements. Human capital theory and neo-classica1 theory of labor migration both assert that migration should improve people's socio-economic status. They largely neglect social and economic structu
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4

Sörengård, Mattias. "Accuracy in Swedish unsegmented and segmented rating curves : Accounting for measurement uncertainty and heteroscedasticity." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-293383.

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River discharge estimation is the basic hydrological information for most hydrological applications in various socioeconomic planning. Increasing the accuracy of the traditional rating curve in relation to river discharge estimation would be very valuable to hydrological applications. Suggestions have been made that the traditional power function rating curve should be divided into several segments because this is often motivated by the physical characteristics of the river. Each curve is commonly constructed by regression and each requires 3 estimated parameters. However stage-discharge data
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Dalosto, Francisco Marchet. "Avaliação de indicadores de desempenho na análise de importância de segmentos de uma rede viária." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/180876.

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A identificação dos segmentos críticos da rede viária é um conhecimento básico que todo planejador de transportes deve ter sobre a rede viária. É inevitável a ocorrência de incidentes e eventos de redução da capacidade nos elementos da rede. O efeito de acidentes e obstruções em segmentos críticos da rede ocasionam impactos que prejudicam o desempenho da rede. Este estudo foi desenvolvido com o apoio do modelo de alocação de tráfego do software VISUM (versão 2015) e propõe um método para determinar a importância de cada segmento da rede viária, a identificação de segmentos críticos da rede e a
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6

Do, Ngoc Anh. "Numerical analyses of segmental tunnel lining under static and dynamic loads." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0042/document.

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Cette thèse vise à étudier le comportement de revêtement articulé du tunnel en développant une nouvelle approche numérique à la Méthode de Réaction Hyperstatique (HRM) et la production des modèles numériques en deux dimensions et trois dimensions à l'aide de la méthode des différences finies (FDM). L'étude a été traitée d'abord sous charges statiques, puis effectuée sous charges dynamiques. Tout d'abord, une étude bibliographique a été effectuée. Une nouvelle approche numérique appliquée à la méthode HRM a ensuite été développée. En même temps, un modèle numérique en deux dimensions est progra
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7

Noh, Marianne S. "Contextualizing Ethnic/Racial Identity: Nationalized and Gendered Experiences of Segmented Assimilation Among Second Generation Korean Immigrants in Canada and the United States." Akron, OH : University of Akron, 2008. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=akron1226517022.

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Dissertation (Ph. D.)--University of Akron, Dept. of Sociology, 2008.<br>"December, 2008." Title from electronic dissertation title page (viewed 12/30/2008) Advisor, Matthew T. Lee; Committee members, Kathryn Feltey, Susan Roxburgh, Baffour Takyi, Carolyn Behrman; Department Chair, John Zipp; Dean of the College, Ronald F. Levant; Dean of the Graduate School, George R. Newkome. Includes bibliographical references.
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8

Hallouin, Baptiste. "Sur la maîtrise de l'étanchéité par segments au sein d'une turbine à gaz." Thesis, Paris, ENSAM, 2013. http://www.theses.fr/2013ENAM0005.

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Au sein des parties statiques d’une turbine à gaz, l’étanchéité du système d’air derefroidissement est couramment assurée par un montage de segments. De par sa rigiditéélevée, ce type de joint s’adapte mal aux pièces avec lesquelles il entre en contact. Uneméthodologie, associant métrologie et calcul éléments finis, a effectivement montré quel’ouverture, à l’interface entre un segment et sa piste, est très supérieure à celle qui caractériseun contact simplement rugueux. Une analyse en ordres de grandeur a révélé que lesmécanismes d’écoulement du gaz, sur un champ d’ouverture typique de l’inter
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9

Láštic, Daniel. "Deformačně-napěťová analýza elastomerových komponent flexibilní spojky." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-401521.

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The diploma thesis deals with computational modelling of stress-strain states in elastomeric components of a flexible coupling. The first part of the thesis is dedicated to research about usage and designs of flexible coupling and about fatigue of elastomers. The second part of the thesis concerns creation of the computational model. The model of material is determined based on uniaxial tension test of a specimen produced from a real elastomer component. The results are presented in the form of comparison of two designs of elastomer component with respect to fatigue behaviour based on a maximu
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10

Anderson, Mike, Peter Militch, and Hugh Pickens. "AN AUTONOMOUS SATELLITE TRACKING STATION." International Foundation for Telemetering, 1999. http://hdl.handle.net/10150/607307.

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International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>In 1998, AlliedSignal Technical Services (ATSC) installed three fully autonomous 13-meter satellite tracking systems for the Integrated Program Office of the National Oceanic and Atmospheric Administration (NOAA) at the Command and Data Acquisition Station near Fairbanks, Alaska. These systems track and command NOAA Polar Orbiting Weather Satellites and Defense Meteorological Satellites. Each tracking system operates for extended periods of time with little in
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11

Vykopal, Petr. "Elektronicky komutovaný stroj." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217636.

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The main idea that lead to the development of EC (electronic commutation) motors is to remove from commutation motors, called DC (direct current) motors, the mechanical commutation system i.e. the cylinder brushes and the commutator that limits in most of the applications the longevity of direct current motors. The commutator is the source of electromagnetic interference and it limits the motor speed. At the same time it is required to keep the outstanding features of DC motors, mainly the multiple overload capacity, high starting torque, low time constant and small dimensions. Thesis introduc
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12

Hibš, Daniel. "Lávka pro pěší." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2019. http://www.nusl.cz/ntk/nusl-392084.

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This diploma thesis deals with the design of a new bridge construction over a multi-lane communication. The converted road is a pedestrian and biking trail connecting significant agglomerations. Three studies were worked out in this thesis and the C variant was selected for further detailed processing. It is an unsymmetrical suspended bridge with a cast-in-place deck. In the section above the communication, the bridge is made up of prefabricated segments. Suspension of the structure is made of two sloping pylons forming a V-shape. The analysis of the construction was carried out in the MIDAS C
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13

Drake, William D. (William Daniel) 1950. "An Analysis of the Participant Selection Process Under the Comprehensive Employment and Training Act: Texas and Louisiana." Thesis, North Texas State University, 1988. https://digital.library.unt.edu/ark:/67531/metadc500874/.

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Federal guidelines required prime sponsors under the Comprehensive Employment and Training Act, or CETA, to serve the "significant segments" of the eligible population. This study analyzes whether prime sponsors in Texas and Louisiana correctly identified and served those segments. This study finds that eligible ethnic groups were properly identified and were served equitably; age and gender distinctions, however, were inadequately observed in the providing of services.
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14

Adler, Filip. "Mostní konstrukce podporovaná kabely." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2017. http://www.nusl.cz/ntk/nusl-265663.

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The subject of this master thesis is to design a pedestrian bridge supported by cables. There are three variants of studies created for this case and for most suitable one, all documentations were produced. The primary focus of this work is on static design solution with an output of several drawings. Static model for results from load cases included construction stages and was created in Midas Civil. Design and checks were performed by hand calculations, complemented by checks of several sections by IDEA StatiCa software. Analysis and calculations are compliant to up-to-date codes and respect
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15

Benavides, Oswald Rodrigo. "Investigation of Control Methods for Segmented Long Stator Linear Drives." Phd thesis, 2008. http://tuprints.ulb.tu-darmstadt.de/1152/3/2008-10-29-Diss-Benavides.pdf.

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Nowadays, linear motors are widely used in machine tools to eliminate the gear re-lated problems of rotative drives with lead-screw transmission. With linear motors the performance increases considerably since mechanical transmission elements are re-moved. This leads to a better precision, a higher acceleration and a higher speed of the moving part. Therefore, direct drives with linear motors are increasingly used in indus-trial applications although these solutions often need higher investment costs. In industrial processing plants, raw materials are transferred into the production process, t
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16

Lines, Christopher Roger. "Modelling and control of segmented long-stator permanent-magnet linear synchronous motors." Thesis, 2014.

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A novel control strategy for segmented long-stator permanent magnet linear synchronous motors is presented that is particularly suited to ropeless hoisting. The stator (primary) is segmented into modular sections that are shorter than the moving reaction plate (secondary) and a single voltage source inverter per conveyance is used to power the energised sections. Efficient partial excitation of the stator is achieved with an intermediate switching layer placed between the stator sections and the inverter. The common voltage supplied to the sections is controlled with any standard motor
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17

Benavides, Oswald Rodrigo [Verfasser]. "Investigation of control methods for segmented long stator linear drives / von Rodrigo Benavides Oswald." 2008. http://d-nb.info/993888798/34.

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18

Choi, Jin Hyouk. "Ground Segment Software Design and Development for Nanosatellite Space Missions." Thesis, 2013. http://hdl.handle.net/1807/35114.

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For spacecraft development, realizing strong supporting ground segment software is as important as designing the actual hardware component of the spacecraft. This thesis describes the author’s contributions to the ground segment software design and development for nanosatellite space missions at the UTIAS Space Flight Laboratory. Particular emphasis is given to the ground segment software for the CanX-3 and CanX-4/-5 missions. For the CanX-3 mission, several software applications are explored, specifically ground control software for the payload on-board computer and star tracker, and mission
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19

Nobre, Joana Filipa Simões Pinheiro. "The impact of e-commerce on packaging paper and paperboard segment." Master's thesis, 2020. http://hdl.handle.net/10362/105569.

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The worldwideproduction of packaging paper and paperboard has been increasingat 2.48%per yearsince 1999, reaching 240 million metric tonnesin 2018.Thisgrowth has been driven by the increasing awareness of consumers regarding environmental sustainability as well as by the growth of the e-commerce industry. The analysis presented was conducted to understand the impact of the e-commerce growth in the production of packaging paper and paperboard, in the UnitedStates and China.
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20

Váňa, Jirků Tereza. "Environmentální migrace - reflexe segmentu migrační politiky z pohledu globální spravedlnosti a křesťanské sociální etiky." Master's thesis, 2021. http://www.nusl.cz/ntk/nusl-448867.

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The thesis aims to familiarize readers with the basic concepts of environmental migration at such a pace as to enable discussion and reflection on the subject. The first chapter is introductory and defines basic concepts such as migration, environmental migration, refugee. The second chapter deals with environmental migration. Environmental migration is nothing new. Natural and human-induced disasters have been the cause of migration in the past and are likely to be the cause of migration. The third chapter deals with legislation on environmental migration. It examines refugee law, human right
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Brescia, Elia. "Advancements in Control, Design, and Parameter Identification of Permanent Magnet Synchronous Machines." Doctoral thesis, 2022. http://hdl.handle.net/11589/237899.

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In this work, advancements in control, design, and parameter identification of permanent magnet synchronous machines (PMSMs) are presented. These advancements take up opportunities and challenges offered by novel applications and technologies. In fact, PMSMs are increasingly adopted thanks to high efficiency and versatility, covering a wide range of applications. In particular, the use of PMSMs in the industry of small-scale wind turbines is becoming dominant. In this application, direct drive topologies coupled with variable speed and fixed pitch wind turbines are a promising solution because
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