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Dissertations / Theses on the topic 'Permanent use of earth'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Simon, Daniel [Verfasser], Oliver [Akademischer Betreuer] Gutfleisch, and Helmut [Akademischer Betreuer] Ehrenberg. "Development and Assessment of Rare Earth-lean Th1Mn12-Phases for the Use in Permanent Magnets / Daniel Simon ; Oliver Gutfleisch, Helmut Ehrenberg." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2019. http://d-nb.info/1194547761/34.

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2

Паляничко, Н. І. "Пріоритетні напрями забезпечення сталого використання земель сільськогосподарського призначення". Thesis, Видавництво СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/12441.

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3

Adibi, Naeem. "Développement d’un indicateur d’évaluation d’impacts de la consommation des ressources : cas d'application à une extraction des matériaux versus un recyclage." Thesis, Ecole centrale de Lille, 2016. http://www.theses.fr/2016ECLI0013/document.

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L’augmentation de la consommation de ressources suscite des préoccupations quant à leur disponibilité. Ces dernières années, les organisations nationales et internationales ont défini l’approvisionnement durable des ressources et la mise en place d’une économie circulaire comme des objectifs centraux de leurs stratégies à court et long termes.Dans ce contexte, différentes approches méthodologiques relevant de l’Analyse du Cycle de Vie (ACV) sont utilisées pour caractériser l'impact de l'épuisement des ressources. Les approches actuelles fournissent néanmoins des visions partielles, car dépenda

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4

Hilton, Geoffrey. "The analysis of magnetic drives using rare earth permanent magnets." Thesis, University of Sunderland, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.368123.

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5

Cedervall, Johan. "Synthesis and characterizationof rare earth free magnetic materialsfor permanent magnet applications." Thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-200882.

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In this thesis the compounds Fe5SiB2 and Fe5PB2 have beensynthesized via high temperature synthesis, including arc melting anddrop synthesis. The structure for both compounds are of Cr5B3 typewith the space group I4/mcm. The cell parameters were refined toa = 5.5533 Å and c = 10.3405 Å for Fe5SiB2 and a = 5.4903 Å andc = 10.3527 Å for Fe5PB2. The saturation magnetization at roomtemperature for Fe5SiB2 has been measured to 138.8 Am2/kg and theanisotropy constant has been estimated to 79 kJ/m3. Theferromagnetic properties and the high anisotropy constant makesthese materials promising as permane

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Fayyazi, Bahar [Verfasser], Oliver [Akademischer Betreuer] Gutfleisch, and Hadjipanayis [Akademischer Betreuer] George. "Development of Rare Earth Free and Rare Earth Balance Permanent Magnets / Bahar Fayyazi ; Oliver Gutfleisch, Hadjipanayis George." Darmstadt : Universitäts- und Landesbibliothek, 2021. http://d-nb.info/1238231705/34.

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7

Sokolowski, Peter Kelly. "Processing and protection of rare earth permanent magnet particulate for bonded magnet applications." [Ames, Iowa : Iowa State University], 2007.

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8

Liu, Zhejie. "Investigation of coupled thermo-electromagnetic problems in relation to applications of permanent magnets to electromagnetic devices." Thesis, University of Liverpool, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.239956.

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9

Luo, Haihua. "Synthesis and characterization of rare-earth-iron based hard magnetic materials /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9924902.

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10

Manakshya, Nikhil. "Permanent magnet synchronous machine using ferrite vs rare earth magnets : how do they compare?" Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-302658.

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Permanent magnet synchronous machines (PMSM are considered as viable options for automotive and traction applications. Rare earth magnets such as Neodymium Iron Boron (NdFeB is the most common choice in the PMSM for electric vehicles to achieve high power density machines. However, rare earth magnets are problematic from ethical and sustainability perspectives. From these perspectives, there are better magnet alternatives, such as ferrites. Ferrite magnets are well known for lower environmental impact, abundance and low cost. Due to a lower residual flux density of a ferrite magnet than that o

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11

Chen, Hansheng. "Correlating the microstructure, magnetic domain structure, and magnetic properties of rare earth permanent magnets." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18996.

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Rare earth permanent magnets have been broadly integrated into various applications, such as advanced electric motor technologies which partly relieve the current energy crisis worldwide by taking advantages of their extraordinary magnetic properties. Traditional approaches for increasing the intrinsic coercivity (Hci) of rare earth permanent magnets typically come at the expense of remanence, resulting in a reduction of maximum magnetic energy product [(BH)max]. Therefore, novel design and processing strategies are in urgent need to circumvent this trade-off in the advanced rare earth permane

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12

Matsumoto, Kenshi. "Crystal Structural Control of Nanomaterials toward High-Performance Permanent Magnets." Kyoto University, 2019. http://hdl.handle.net/2433/245309.

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13

Chaaban, Farid B. "Computer aided analysis, modelling and experimental assessment of permanent magnet synchronous machines with rare earth magnets." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.293710.

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14

Islam, Md Zakirul. "Design and Performance Analysis of Rare-Earth-Free Five-Phase Permanent Magnet-Assisted Synchronous Reluctance Motor." University of Akron / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=akron1574423146588421.

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15

Ahmad, H. "Down-to-earth issues in mandatory information system use." Thesis, University of Salford, 2013. http://usir.salford.ac.uk/38084/.

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A literature review of information system (IS) use issues provides evidence that the current issues appear to be limited when looking at those that are meaningful to system users. The current issues covered are often not those encountered in everyday IS use that might affect the quality use of IS. The problems found with the current literature are wrong perspective, narrow theoretical focus, ignores indirect issues, hidden issues and plethora of issues. This thesis suggests that a true understanding of IS use requires attention to many 'everyday' real-life issues; what this study calls Down-To

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Patel, Hardik D. "Use of Permanent Magnets to Improve the Seismic Behavior of Light-Framed Structures." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/42707.

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Light-framed wood structures generally have satisfied the life safety objective of the current seismic design approach. The main source of energy dissipation in such structures is the inelastic behavior of the connectors connecting framing and sheathing elements. Wood framed structures when subjected to strong ground excitations experience structural and non-structural damage which may incur large repair/replacement costs or may even render the structure out of service. Thus, it is very important to apply techniques to mitigate the seismic response of the light-framed structures and avoid larg

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Wright, Jim Allen, and Jim Allen Wright. "Earth Integration and Thermal Mass (for Global Energy Use Reduction)." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/620722.

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As the rest of the world under development catches up economically with the developed nations, adoption of western tastes is projected to lead to enormous increases in energy use. Specifically, air conditioning use within countries with low saturation rates and high cooling degree rates (India and China) have a potential demand of up to 5 times that of the U.S. market. This growth in HVAC (Heating Ventilation&Air Conditioning) means billions of tons of increased carbon dioxide emissions and trillions of dollars in investment in electricity generation and transmission infrastructure.If there

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Bonnaud, Céline. "Vers une méthode de recyclage et de valorisation des aimants permanents à base de terres rares par électrochimie en milieux liquides ioniques." Thesis, Université Grenoble Alpes (ComUE), 2017. http://www.theses.fr/2017GREAI039/document.

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Les terres rares (TR) sont aujourd’hui les « vitamines » des nouvelles technologies, elles se retrouvent dans tous les objets technologiques du quotidien et contribuent notablement au développement d’énergies vertes principalement par l’intermédiaire d’aimants permanents à base de terres rares (APTR). Ces derniers, de type NdFeB ou SmCo, représentent actuellement plus de 50 % du marché des TR et offrent un fort potentiel de recyclage. La présente étude se concentre sur le recyclage et la valorisation des APTR, principalement grâce au développement de l’électrochimie en milieu liquide ionique (

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Widyan, Mohammad S. "Design, optimization, construction and test of rare earth permanent magnet electrical machines with new topology for wind energy applications." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=980896746.

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20

Jha, Rajesh. "Combined Computational-Experimental Design of High-Temperature, High-Intensity Permanent Magnetic Alloys with Minimal Addition of Rare-Earth Elements." FIU Digital Commons, 2016. http://digitalcommons.fiu.edu/etd/2621.

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AlNiCo magnets are known for high-temperature stability and superior corrosion resistance and have been widely used for various applications. Reported magnetic energy density ((BH) max) for these magnets is around 10 MGOe. Theoretical calculations show that ((BH) max) of 20 MGOe is achievable which will be helpful in covering the gap between AlNiCo and Rare-Earth Elements (REE) based magnets. An extended family of AlNiCo alloys was studied in this dissertation that consists of eight elements, and hence it is important to determine composition-property relationship between each of the alloying

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21

Anocibar, Héctor Rolando. "Histerisímetro de Entreferro Variável HEV : uma proposta alternativa para a caracterização de ímãs permanentes." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/117449.

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A determinação das principais propriedades magnéticas de um ímã permanente geralmente requer sistemas de medição sofisticados e custosos. Este trabalho analisa e propõe um sistema de caracterização de ímãs permanentes de Terras Raras à temperatura ambiente de baixo custo e de implementação mais simples e rápida. Ele consiste de um circuito magnético formado pelo ímã permanente sob caracterização, uma culatra de aço, um entreferro variável e uma sonda de efeito Hall com seu respectivo gaussímetro para a medição da intensidade do campo magnético no entreferro. Como introdução se apresenta o esta

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22

Reigstad, Tor Inge. "Direct Driven Permanent Magnet Synchronous Generators with Diode Rectifiers for Use in Offshore Wind Turbines." Thesis, Norwegian University of Science and Technology, Department of Electrical Power Engineering, 2007. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-8754.

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<p>This work is focused on direct-driven permanent magnets synchronous generators (PMSG) with diode rectifiers for use in offshore wind turbines. Reactive compensation of the generator, power losses and control of the generator are studied. Configurations for power transmission to onshore point of common connection are also considered. Costs, power losses, reliability and interface with the PMSG are discussed. The purpose of the laboratory tests and simulations are to learn how a PMSG with diode rectifier behaves. A 55kW PMSG is tested in "Vindlabben", with and without reactive compensation.

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23

Jenicek, David P. (David Pierre). "Design of low-power permanent-magnet synchronous motor for use in high-density heat pump." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66427.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2011.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 63).<br>An analytical model for the functionality of a permanent-magnet synchronous motor is developed. Taking as input a specific geometry, it predicts steady-state losses of a design at an average rate of 0.85 seconds per analysis, orders of magnitude faster than existing finite-element methods. A wide design space is analyzed and, based on the necessary motor profile and manufacturing limits,

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Alfonso, Amanda. "Organic nitrogen use by different plant functional types in a boreal peatland." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106594.

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Mineralization has long been thought to be the main driver in providing plant available nitrogen (N). However, slow mineralization rates of northern ecosystems cannot sustain total plant N accumulation and it is now recognized that plants can utilize organic forms of N. N is often a limited nutrient in ombrotrophic bogs and at Mer Bleue peatland nearly 80% of the N in the porewater is in the dissolved organic nitrogen (DON) form. This study determined whether peatland plants can take up organic forms of N and whether there are differences between plant functional types, which dominate bog vege

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Anocibar, Héctor Rolando. "Alternativa para caracterização de ímãs permanentes com destacada anisotropia magnetocristalina sem desmagnetização irreversível." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/34745.

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A determinação das principais propriedades magnéticas de um ímã permanente geralmente requer sistemas de medição sofisticados e custosos. Este trabalho analisa e propõe um sistema de caracterização de ímãs permanentes de Terras Raras e Cerâmicos à temperatura ambiente de baixo custo e de implementação mais simples. Para isso, o Histerisímetro de Entreferro Variável, HEV, é concebido e estudado. Ele consiste de um circuito magnético formado pelo ímã permanente sob caracterização, uma culatra de aço, um entreferro variável, bobinas de magnetização e desmagnetização de baixa potência, uma sonda d

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Cedervall, Johan. "Magnetic Materials for Cool Applications : Relations between Structure and Magnetism in Rare Earth Free Alloys." Doctoral thesis, Uppsala universitet, Institutionen för kemi - Ångström, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-331762.

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New and more efficient magnetic materials for energy applications are a big necessity for sustainable future. Whether the application is energy conversion or refrigeration, materials based on sustainable elements should be used, which discards all rare earth elements. For energy conversion, permanent magnets with high magnetisation and working temperature are needed whereas for refrigeration, the entropy difference between the non-magnetised and magnetised states should be large. For this reason, magnetic materials have been synthesised with high temperature methods and structurally and magnet

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Anagnostopoulou, Evangelia. "A new route for rare-earth free permanent magnets : synthesis, structural and magnetic characterizations of dense assemblies of anisotropic nanoparticles." Thesis, Toulouse, INSA, 2016. http://www.theses.fr/2016ISAT0045/document.

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Cette thèse a eu pour objectif la préparation d’aimants nanostructurés sains terres rares à base d’un assemblage dense de nanobâtonnets de cobalt (Co NBs). Nous avons démontré la faisabilité d’un changement d’échelle du procédé polyol, avec des conditions d’agitation contrôlées, pour obtenir 5 g de NBs monodisperse. La modification de l’agent nucléant nous a permis de contrôler la taille et la forme des NBs conduisant à des valeurs élevées de champ coercitif. La réalisation d’aimants macroscopiques denses et robustes a été possible via la dispersion des bâtonnets dans du chloroforme et son éva

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Tripathi, Sapana [Verfasser], and Eberhard [Akademischer Betreuer] Goering. "XMCD investigation at M4,5 edges of the rare earth elements in high-performance permanent magnet / Sapana Tripathi ; Betreuer: Eberhard Goering." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2018. http://d-nb.info/117544457X/34.

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Cawthorne, William R. "Optimization of a brushless permanent magnet linear alternator for use with a linear internal combustion engine." Morgantown, W. Va. : [West Virginia University Libraries], 1999. http://etd.wvu.edu/templates/showETD.cfm?recnum=800.

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Thesis (Ph. D.)--West Virginia University, 1999.<br>Title from document title page. Document formatted into pages; contains vi, 112 p. : ill. (some col.). Vita. Includes abstract. Includes bibliographical references (p. 76-79).

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D'Angelo, Jacob S. "Use of West Virginia permanent traffic recorder data to develop factors for traffic and truck variation." Morgantown, W. Va. : [West Virginia University Libraries], 2002. http://etd.wvu.edu/templates/showETD.cfm?recnum=2265.

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Thesis (M.S.)--West Virginia University, 2002.<br>Title from document title page. Document formatted into pages; contains ix, 76 p. : ill. Vita. Includes abstract. Includes bibliographical references (p. 63).

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Patel, Jiganesh Govind 1977. "The use of satellite remote sensing to determine land water runoff." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/17516.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2001.<br>Vita.<br>Includes bibliographical references (leaves 30-31).<br>The purpose of this study is to estimate land water runoff from satellite measurements of net radiation at the top of the atmosphere by invoking columnar atmospheric water and energy balance. Land water runoff is an important parameter in many areas including management of human water use and validation of climate models. Energy measurements taken by satellite are less prone to error than the river discharge measurem

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Masters, John K. (John Kendall). "Predicting the Use of External Labor Arrangements: A Transaction Costs Perspective." Thesis, University of North Texas, 1998. https://digital.library.unt.edu/ark:/67531/metadc277753/.

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Firms' use of external labor arrangements (ELAs), such as temporary, contract and seasonal workers, has become increasingly prevalent over the last two decades. Despite the increasing importance of this phenomenon, little is known about firms' reasons for using ELAs. Most research to date has been exploratory, using qualitative methods or archival data not well suited to the constructs. The result of this research has been a long and often contradictory list of proposed antecedents of ELA use. In this study, I tested the ability of the transaction costs theory to predict when firms will fil

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Smith, Jodie Ellen. "The use of deep-sea corals as paleoceanographic monitors /." *McMaster only, 1997.

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34

Hutchison, Leah (Leah Ellen Ann). "Determining land use change and desertification in China using remote sensing data." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/114113.

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Thesis: S.B. in Geosciences, Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2004.<br>Cataloged from PDF version of thesis. Some pages in original thesis contain text that run off the edge of the page.<br>Includes bibliographical references (pages 61-64).<br>Desertification, the spread of desert-like conditions in arid or semiarid areas due to human influence or to climatic change, affects most arable land in arid and semi-arid China. This project provides an analysis of desertification in northeastern arid and semi-arid China to determine its s

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BOSSIO, CARLOS ERNESTO HILBURG. "MINIMAL TIME LOOP CONTROL OF A PERMANENT MAGNET STEP MOTOR WITH THE USE OS AN INNER LOOP." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 1986. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=9618@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>Descreve-se o controle em malha fechada por malha pequena de um motor de passo de imã permanente (MIPIP), de forma a obter posicionamento preciso em tempo mínimo. A malha pequena é utilizada para, aplicar o modo de controle de alta velocidade (HISPEED); consegue-se dessa forma atingir velocidades muito superiores às obtidas em malha aberta. O principio de controle adotado pelo controlador de malha externa baseia-se na utilização de tabelas que possuam dados sobre as curvas de aceleração e desaceleração do MPIP. Dependendo

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Ochs, David S. "Design of detailed models for use in fast aeroelastic simulations of permanent-magnet direct-drive wind turbines." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/15042.

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Master of Science<br>Department of Electrical and Computer Engineering<br>Ruth Douglas Miller<br>This thesis presents the design of two models for permanent-magnet direct-drive wind turbines. The models are of a 10 kW and a 5 MW wind turbine, which are representative of residential scale and commercial scale turbines respectively. The models include aerodynamic and mechanical simulations through the FAST software, as well as concurrent electrical simulations through the SimPowerSystems toolbox for MATLAB/Simulink. The aim is to provide wind turbine designers and researchers with a comprehensiv

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Stelianos, Haralambos. "The use of commercial Low Earth Orbit satellite systems to support DoD communications." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1996. http://handle.dtic.mil/100.2/ADA326969.

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Thesis (M.S. in Electrical Engineering) Naval Postgraduate School, December 1996.<br>"December 1996." Thesis advisor(s): Tri T. Ha and Vicente Garcia. Includes bibliographical references (p. 95-97). Also available online.

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Alexander, Jane Louise. "Rare earth elements in mud-rich sediments and their use as provenance indicators." Thesis, University College London (University of London), 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.298786.

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McConnell, Joshua B. (Joshua Bryan) 1974. "Technical and policy issues surrounding the use of autonomous maneuverable earth observing satellites." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/82781.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2003.<br>Includes bibliographical references (leaves 237-240).<br>by Joshua B. McConnell.<br>S.M.

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Musakwa, Walter. "Evaluating the potential of Earth observation for supporting sustainable urban land use planning." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85575.

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Thesis (PhD)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: In many developing countries, rapid urbanisation continues to substantially transform land from agricultural and rural land uses, as well as natural landscapes into urban areas. This leads to significant changes to the socio-economic fabric and nature of the natural environment. Data to monitor such transformation is often out of date, unreliable, in unstandardised format, cumbersome and expensive to collect or simply unavailable in urban centres of many developing countries. These characteristics inhibit local authorities‘ and

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Rogers, Cheryl. "Remote sensing of light use effeciency in a boreal forest and peatland in James Bay, Quebec." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=106336.

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The photochemical reflectance index (PRI) is a remotely sensed vegetation index that detects a decrease in spectral reflectance at 531nm associated with xanthophyll cycle activity. PRI has been shown to track light use efficiency (LUE) in a number of plant species. PRI shows great promise in improving our ability to sense photosynthetic fluxes of CO2 remotely. However, it has not been tested in all environments, and its applicability is particularly uncertain for peatland environments dominated by mosses. This research investigates the ability of PRI to track LUE in a boreal forest and peatlan

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Häggquist, Elisabeth. "The Economic Value and Use of Geological Information." Doctoral thesis, Luleå tekniska universitet, Samhällsvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65731.

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The overall purpose of this thesis is to investigate the economic value and use of geological information. Earthobservations of a geological nature, may have profound impacts on peoples everyday lives. Geological informationplays a key role in addressing the challenges of sustainable development, and contributes to improved decisionmakingprocesses related to, for instance, land degradation and water protection. Still, few have researched theeconomic values attached to such information. This thesis contains an introduction and five self-contained papers.Paper (I) provides a review of previous r

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Khojah, Ghadah M. A. "Using Dooyeweerd's aspects to understand down to earth issues in use of medical records." Thesis, University of Salford, 2018. http://usir.salford.ac.uk/48468/.

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This research is about experience of using electronic medical records (EMR). Chapter 1 introduces and justifies the main research question "How can Down To Earth issues that are important in uses of EMR be studied by using Dooyeweerd's aspects?" Down To Earth (DTE) issues are those meaningful in daily uses of patient medical records rather than those meaningful for management, ICT suppliers and academics. A survey of the literature (Chapter 2) reveals that high level issues rather than DTE issues are mostly discussed. Even where the literature mentions DTE issues, there is a need for three res

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Yu, Yin. "Essays on the Use of Earnings Dynamics as an Earnings Benchmark by Financial Market Participants." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1282062083.

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Chung, Kao-Shen. "Use of single Doppler radar observations in data assimilation at convective scale with model as a weak constraint." Thesis, McGill University, 2010. http://digitool.Library.McGill.CA:8881/R/?func=dbin-jump-full&object_id=92252.

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SOARES, EDSON P. "Caracterização magnética e microestrutural de ímãs sinterizados de Pr-Fe-B processados pela técnica de transferência de pós e utilizando decrepitação por hidrogênio." reponame:Repositório Institucional do IPEN, 2005. http://repositorio.ipen.br:8080/xmlui/handle/123456789/11263.

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Made available in DSpace on 2014-10-09T12:50:03Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:02:56Z (GMT). No. of bitstreams: 1 10449.pdf: 4731393 bytes, checksum: e712ff415dbc885976e03c8cf9a7af16 (MD5)<br>Dissertacao (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN/CNEN-SP

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Fasolo, Alessandro. "Multi Polar Direct Drive Permanent Magnet Synchronous Machines for Renewable Energy." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3423088.

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This doctoral study mainly considers the Wind Energy resource and focuses on the electromagnetic aspects of generators for direct drive solutions in this field. Despite the strong employing by many constructor of geared technology in Wind Turbines Generators, a transmission/gear box reduces both, eciency and reliability: the losses due to the transmission potentially compromise the sustainability of the electromechanical system. A better solution is the multipolar low speed direct drive train. Permanent magnet machines offer compactness and the absence of brushes with respect to traditional ma

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Risbey, James S. (James Sydney). "On the use of climate models to assess the impacts of regional climate change on water resources." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/57652.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1994.<br>Includes bibliographical references (p. 207-213).<br>by James Sydney Risbey.<br>Ph.D.

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Salters, Vincent J. M. "The use of Hf-isotopes and high field strength elements to constrain magmatic processes and magma sources." Thesis, Massachusetts Institute of Technology, 1989. http://hdl.handle.net/1721.1/58018.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1989.<br>Includes bibliographical references.<br>by Vincentius Johannes Maria Salters.<br>Ph.D.

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Thornley, John D. "Use of statistical methods to study corrosion aggressiveness at Nevada mechanically stabilized earth wall sites." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1464461.

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