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Dissertations / Theses on the topic 'Magnetic sheet'

Author: Grafiati

Published: 16 September 2023

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1

Stechow, Adrian von [Verfasser]. "Current sheet dynamics during driven magnetic reconnection / Adrian von Stechow." Greifswald : Universitätsbibliothek Greifswald, 2015. http://d-nb.info/1073164306/34.

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2

Su, Ruitao. "Multi-Field Physics for the Synthesis of Carbon Nanotube Yarn and Sheet." University of Cincinnati / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1439310862.

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3

Wilson, Fiona. "Equilibrium and stability properties of collisionless current sheet models." Thesis, University of St Andrews, 2013. http://hdl.handle.net/10023/3548.

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The work in this thesis focuses primarily on equilibrium and stability properties of collisionless current sheet models, in particular of the force-free Harris sheet model. A detailed investigation is carried out into the properties of the distribution function found by Harrison and Neukirch (Physical Review Letters 102, 135003, 2009) for the force-free Harris sheet, which is so far the only known nonlinear force-free Vlasov-Maxwell equilibrium. Exact conditions on the parameters of the distribution function are found, which show when it can be single or multi-peaked in two of the velocity spa

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4

Akcaoglu, Fehmi Umit. "Investigating The Effect Of Deformation And Annealing Texture On Magnetic Anisotropy In Low-c Steel Sheets By Magnetic Barkhausen Noise Method." Master's thesis, METU, 2013. http://etd.lib.metu.edu.tr/upload/12615569/index.pdf.

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Deformation and annealing texture in the cold rolled low carbon steels is important for sheet metal forming operations and service performance. The aim of this study is to non-destructively investigate the effect of texture on magnetic anisotropy. Various samples having different textures and residual stress states, due to different % reduction in thickness, annealing and stress relieving treatment, were prepared. Texture maps were obtained by Magnetic Barkhausen noise measurements performed with 100 steps between the ranges of 00-3600 on the surface. Microstructure investigation by optical &a

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5

Matsui, Tatsuki. "Kinetic theory and simulation of collisionless tearing in bifurcated current sheets." Diss., University of Iowa, 2008. http://ir.uiowa.edu/etd/38.

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6

Souza, Pedro Victor Brondino Duarte de. "Desenvolvimento de um subsistema non-real-time para o gerenciamento de dispositivos periféricos e desenvolvimento de interfaces gráficas." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-21102016-140615/.

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Ressonância Magnética (RM) é uma técnica bastante versátil, pois é utilizada em muitas áreas de pesquisa, como biologia, física, química, engenharia e medicina. Apesar disso, constitui-se uma desvantagem o alto custo do equipamento e suas restrições físicas para alguns experimentos. Para reduzir essas desvantagens, o grupo de pesquisadores do CIERMag está desenvolvendo um equipamento de RMN multipropósito e, para complementá-lo, este trabalho vem desenvolver um subsistema non-real-time que gerencia os dispositivos periféricos de um experimento. Foi proposta uma rede de dispositivos que é contr

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7

Kamal, Manish. "A uniform pressure electromagnetic actuator for forming flat sheets." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1127230699.

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Thesis (Ph. D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xxi, 261 p.; also includes graphics (some col.). Includes bibliographical references (p. 244-254). Available online via OhioLINK's ETD Center

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8

Talowski, Catherine. "Contribution à l'amélioration des tôles magnétiques non orientées utilisées en électrotechnique." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0105.

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Actuellement, la principale voie d'amélioration des performances des aciers magnétiques utilisées dans les machines tournantes est l'obtention d'une texture préférentielle type "cubique" {100}<001> ou planaire {100}<0vw>. De plus, pour l'ensemble des tôles magnétiques, le laminage à chaud est une étape incontournable du procédé. Or il a été montré antérieurement que des microstructures de laminé à chaud non recristallisées et fortement déformées hétérogènement coïncidaient avec l'émergence d'une texture finale prononcée et une sensible amélioration des performances magnétiques. Nous avons exam

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9

純士, 北尾, та Junji Kitao. "ヒステリシス特性を考慮した有限要素磁界解析の実用化に関する研究". Thesis, https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13044990/?lang=0, 2017. https://doors.doshisha.ac.jp/opac/opac_link/bibid/BB13044990/?lang=0.

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本論文では，鉄損算出精度向上を目的としたプレイモデルによるヒステリシス特性を考慮した磁界解析の実用化に向けて，ヒステリシスモデルのモデリング精度向上，計算機の記憶容量低減，有限要素磁界解析の計算時間削減に関する手法を提案した．さらに，ヒステリシス特性の考慮の有無が解析結果に与える影響を検討し，提案したヒステリシス特性を考慮した有限要素磁界解析の実用性を明らかにした．<br>In order to achieve the highly accurate analysis of an iron loss for electric machines, this paper proposes finite element magnetic field analyses taking account of the hysteretic property by using the play model. As a consequence, it is verified that the proposed method can accurately estimate an iron loss of a magnetic materials and decrease computational costs. Furthermore, this paper investigates the infl

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10

Pera, Thierry. "Lois d'aimantation anisotropes et non linéaires : modélisation et validation expérimentale." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0038.

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Le but de notre étude est de prendre en compte le comportement bidimensionnel non linéaire et anisotrope des tôles magnétiques, utilisées en génie électrique, afin de pouvoir effectuer une modélisation par éléments finis aussi réaliste que possible. Nous avons développé un modèle original de loi de comportement de tôles magnétiques (à grains orientés, à grains non orientés, à texture cubique) fondé sur l'équivalence entre la relation vectorielle B(H) et une représentation magnétique 11. Les données expérimentales nécessaires sont les courbes B(H) suivant la direction de laminage (axe x) et str

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11

Bungey, Timothy N. "Topological configurations of coronal magnetic fields and current sheets." Thesis, University of St Andrews, 1996. http://hdl.handle.net/10023/14021.

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The question of topology in the coronal magnetic field is addressed in this thesis. Magnetic reconnection, which plays a major role in many of the fascinating phenomena seen in the solar atmosphere, is likely to occur at the boundaries between different topological regions of the magnetic field. By modelling the coronal field using discrete sources of flux, to represent the concentrations seen at the photospheric surface, we study the varying topological structures present in the field. We generate a criterion for determining the presence of null points above the photospheric surface and estab

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12

Andriyas, Tushar. "Particle Dynamics and Resistivity Characteristics in Bifurcated Current Sheets." DigitalCommons@USU, 2013. http://digitalcommons.usu.edu/etd/1513.

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Charged particle chaos and its collective effects in different magnetic geometries are investigated in a sequence of various numerical experiments. The fields generated by the particles as a result of interaction with the background electric and magnetic fields is not accounted for in the simulation. An X-line is first used to describe the geometry of the magnetotail prior to magnetic reconnection and a study of the behavior of charged particles is done from a microscopic viewpoint. Another important geometry in the magnetotail prior to substorm onset is Bifurcated Current Sheet. The same anal

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13

Nozawa, Satoshi. "Three-dimensional magnetohydrodynamic simulation of nonlinear magnetic buoyancy instability of flux sheets with magnetic shear." 京都大学 (Kyoto University), 2006. http://hdl.handle.net/2433/144351.

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Kyoto University (京都大学)<br>0048<br>新制・論文博士<br>博士(理学)<br>乙第11770号<br>論理博第1464号<br>新制||理||1442(附属図書館)<br>23825<br>UT51-2006-C692<br>名古屋大学大学院理学研究科宇宙理学第２類<br>(主査)教授柴田一成, 教授長田哲也, 助教授戸谷友則<br>学位規則第4条第2項該当

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14

Harrison, Michael George. "Equilibrium and dynamics of collisionless current sheets." Thesis, St Andrews, 2009. http://hdl.handle.net/10023/705.

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15

Ababsa, Mohamed Lamine. "Caractérisation de composants magnétiques et diélectriques pour les machines électriques tournantes très haute température High temperature magnetic characterization using an adapted Epstein frame High temperature characterization of electrical steels using an adapted Epstein frame." Thesis, Artois, 2018. http://www.theses.fr/2018ARTO0205.

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Dans ce travail de thèse, nous avons effectué des mesures de caractérisations magnétiques (cycles d’hystérésis, pertes, H_c…) à très haute température jusqu’à 600 °C, à l’aide d’un dispositif de caractérisation adapté à ces conditions extrêmes qui est un cadre Epstein que nous avons élaboré et réalisé. Sa validation a pu être vérifiée avec un cadre normalisé à température ambiante. Les mesures sont faites sur les deux types de tôles ferromagnétiques les plus utilisées : FeSi GO et NO. Les résultats montrent une réduction avec la température des pertes fer et des différents paramètres qui défin

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16

Bowness, Ruth. "Current sheets in the solar corona : formation, fragmentation and heating." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/2081.

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In this thesis we investigate current sheets in the solar corona. The well known 1D model for the tearing mode instability is presented, before progressing to 2D where we introduce a non-uniform resistivity. The effect this has on growth rates is investigated and we find that the inclusion of the non-uniform term in η cause a decrease in the growth rate of the dominant mode. Analytical approximations and numerical simulations are then used to model current sheet formation by considering two distinct experiments. First, a magnetic field is sheared in two directions, perpendicular to each other.

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17

Eriksson, Elin. "3D Magnetic Nulls and Regions of Strong Current in the Earth's Magnetosphere." Licentiate thesis, Uppsala universitet, Institutet för rymdfysik, Uppsalaavdelningen, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-292742.

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Plasma, a gas of charged particles exhibiting collective behaviour, can be found everywhere in our vast Universe. The characteristics of plasma in very distant parts of the Universe can be similar to characteristics in our solar system and near-Earth space. We can therefore gain an understanding of what happens in astrophysical plasmas by studying processes occurring in near Earth space, an environment much easier to reach. Large volumes in space are filled with plasma and when different plasmas interact distinct boundaries are often created. Many important physical processes, for example part

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18

Spornic, Sorin Aurel. "Automatisation de bancs de caractérisation 2D des tôles magnétiques : influence des formes d'onde sur les mécanismes d'aimantation." Phd thesis, Grenoble INPG, 1998. http://www.theses.fr/1998INPG0154.

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Le travail de notre thèse porte sur le comportement des matériaux magnétiques doux soumis à des variations 2D quelconques du vecteur induction magnétique dans le plan de la tôle. De telles conditions apparaissent par exemple dans les machines électriques tournantes ou les transformateurs triphasés. Les travaux précédents ont été limités à des inductions de formes simples (cercles ou ellipses parcourues à vitesse angulaire constante), qui ne permettent pas de décrire de manière complète le comportement des matériaux. Dans un premier temps nous avons dû élaborer un outil de caractérisation magné

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19

Cohen, Joel (Joel A. ). "Excitation of forced ion acoustic waves, large plasma sheets, and magnetic field fluctuations over Gakona, Alaska." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/53280.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Nuclear Science and Engineering, 2009.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 47-48).<br>Two research subjects: (1) excitation of "forced ion acoustic waves", and (2) "simultaneous excitation of plasma density fluctuations and geomagnetic field fluctuations" are reported in my M.S. thesis. The data was acquired in our experiments conducted at Gakona, Alaska from summer 2007 to winter 2008, using DoD/NSF-funded HAARP facilities and our own optical (ASIS) and radio instruments (VLF receivi

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20

Ball, David, Feryal Özel, Dimitrios Psaltis, Chi-Kwan Chan, and Lorenzo Sironi. "The Properties of Reconnection Current Sheets in GRMHD Simulations of Radiatively Inefficient Accretion Flows." IOP PUBLISHING LTD, 2018. http://hdl.handle.net/10150/627036.

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Non-ideal magnetohydrodynamic (MHD) effects may play a significant role in determining the dynamics, thermal properties, and observational signatures of radiatively inefficient accretion flows onto black holes. In particular, particle acceleration during magnetic reconnection events may influence black hole spectra and flaring properties. We use representative general relativistic magnetohydrodynamic (GRMHD) simulations of black hole accretion flows to identify and explore the structures and properties of current sheets as potential sites of magnetic reconnection. In the case of standard and n

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21

Hudson, Frederick Michael Lewis. "NMR characterization guides the design of beta hairpins and sheets while providing insights into folding cooperativity and dynamics /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/8639.

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22

Jerems, Frank. "The magnetic and magnetoelastic properies of meld-spun MbFe2 based alloys and their temperature dependencies." Thesis, University of Hull, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.484232.

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23

Cester, Christophe. "Étude des pertes magnétiques supplémentaires dans les machines asynchrones alimentées par onduleur à modulation de largeur d'impulsion." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0068.

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La banalisation de l'emploi d'onduleras à Modulation de Largeur d'Impulsion pour l'alimentation des machines asynchrones rend indispensable l'étude des pertes magnétiques supplémentaires qu'ils engendrent. L'influence des paramètres principaux de la MLI, fréquence de hachage et paramètre de modulation est étudiée, grâce à un banc de mesure de type cadre Epstein spécialement adapté. L'emploi d'un moteur instrumenté de 4 kW permet d'observer les formes d'ondes réellement présentes dans les différentes parties du circuit magnétique et de montrer que la déformation du signal MLI entraîne une forte

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24

Krings, Andreas. "Iron Losses in Electrical Machines - Influence of Material Properties, Manufacturing Processes, and Inverter Operation." Doctoral thesis, KTH, Elektrisk energiomvandling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145243.

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As the major electricity consumer, electrical machines play a key role for global energy savings. Machine manufacturers put considerable efforts into the development of more efficient electrical machines for loss reduction and higher power density achievements. A consolidated knowledge of the occurring losses in electrical machines is a basic requirement for efficiency improvements. This thesis deals with iron losses in electrical machines. The major focus is on the influences of the stator core magnetic material due to the machine manufacturing process, temperature influences, and the impact

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25

Mozetic, Halston José. "Micro estampagem e recozimento conjugado com campo induzido : efeitos no desempenho eletromagnético para chapas elétricas de grão não orientado." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/109171.

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O trabalho aborda o desenvolvimento e implantação de um processo de recozimento conjugado com campo magnético induzido. Para este trabalho foi escolhido como material o FeSi, ABNT NM71-2000/ 35F 420M com GNO (Grão-Não-Orientado) devido ao baixo custo de obtenção das peças e também por ser um material de fácil aquisição no mercado. O processo tem como benefício minimizar as perdas magnéticas produzidas pelo corte convencional na borda das chapas elétricas. Para realizar o processo o sistema é composto de um forno, enrolamento de indução e fonte de alimentação. Os parâmetros utilizados no tratam

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26

Zoufalý, Marek. "Snížení zapínacího proudu transformátoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-220367.

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In this thesis is described the function and design of the transformer designed on ferromagnetic core, composed of transformer sheets. It is explained a transient inrush current of the transformer. In this work is inserted voltage and current waveforms, designed printed circuit board, serving to reduce the inrush current.

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27

Plíšek, Oldřich. "Analýza ztrát v železe malého asynchronního motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376984.

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The aim of this master´s thesis is to analyze core losses of a small induction motor. Analyzed values are obtained from laboratory measurements, software analysis and 2D finite element method simulation. The theoretical part of this thesis consists of two parts. The analysis of the higher spatial harmonics presents in the induction motor and the analysis of core losses of the motor. Practical part consists of laboratory measurements according to ČSN. Measured values are used to calculate individual losses. The next part consists of creating a model for software analysis (Maxwell RMxprt). The g

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28

Boughanmi, Walid. "Eco-conception des motorisations électriques : Application à la machine asynchrone." Thesis, Artois, 2012. http://www.theses.fr/2012ARTO0207/document.

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Environ 300 millions de moteurs électriques, de puissance moyenne comprise entre 0,75 kW et 300 kW, sont utilisés dans l’industrie, l’infrastructure et les grands bâtiments. En plus, 30 millions sont renouvelés chaque année. En France, l’énergie électrique consommée par ces moteurs représente environ deux-tiers l’énergie électrique consommée dans l’industrie. Une amélioration, même faible, des performances environnementales de chaque unité apporte donc des gains environnementaux conséquents. La démarche d’éco-conception d’une machine électrique permet d’introduire, contrairement aux autres dém

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29

Halfar, Tomáš. "Zlepšení energetických parametrů asynchronních strojů malého výkonu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219929.

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The master’s thesis Improvement power parameter of small induction motors deals with issues of lowering the losses of small induction motors. The first part introduces with design and principles of operation of induction motors. Also introduces to theoretical problematic of losses, their lowering and measuring. In the practical part there are results of the measuring the losses in the induction motor ATAS Elektromotory Náchod a.s. T22VT512 (71-0512). There are proposed methods of increasing the efficiency of induction motor due to measuring and their verification in the Maxwell software. The l

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30

Berlin, Alexander. "Magnetic Pulse Welding of Mg Sheet." Thesis, 2011. http://hdl.handle.net/10012/6210.

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Because of its low density and high strength, magnesium (Mg) and its alloys are being sought after in the automotive industry for structural applications. Although many road-going cars today contain cast Mg parts, in the fabrication of chassis structural members the wrought alloys are required. One of the challenges of fabrication with wrought Mg is welding and joining the formed sheets. Because of the commonly observed difficulties in fusion welding of Mg such as hot cracking and severe Heat Affected Zone (HAZ), this work aimed to establish the feasibility of the solid-state process Magnetic

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31

Fu, Wei-Tsung, and 傅瑋宗. "Extended solutions for Harris Sheet magnetic field with Kappa velocity distribution." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/20363578369673096049.

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Yu, Shih-hong, and 余世鴻. "Preparation and Electromagnetic Characterization of Magnetic Sheet Absorbers for High-Frequencies." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/19718879193204029510.

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碩士<br>逢甲大學<br>航太與系統工程所<br>100<br>Absorbing sheets are fabricated by mixing magnetic powders with polyurethane for the purpose of electromagnetic wave absorption and shielding. The sheets possess characteristics such as flexibility, light-weighted and thin-thickness which are superior to traditional ferrite-tiles and metal shielding sheets. In this study, Mn-Zn ferrite particles, two types of high-permeability powders and Fe-Si-Cr particles are respectively mixed with aqueous-based polyurethane resin to fabricate microwave absorbing composites in different weight ratios. The scattering parame

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33

Zharkova, Valentina V., and Mykola Gordovskyy. "Particle Acceleration Asymmetry in a Reconnecting Nonneutral Current Sheet." 2009. http://hdl.handle.net/10454/3753.

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No<br>The acceleration of electrons and protons caused by a super-Dreicer electric field directed along the longitudinal component By of the magnetic field is investigated. The three-component magnetic field in a nonneutral current sheet occurring at the top of the reconnecting flaring loops on the charged particle trajectories and energies is considered. Particle trajectories in the reconnecting current sheet (RCS) and their energy spectra at the point of ejection from the RCS are simulated from the motion equation for different sheet thicknesses. A super-Dreicer electric field of the current

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蔡秉霖. "Influence of capping layer on magneto-optical kerr effect in magnetic sheet-film systems." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/06008240754030579930.

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碩士<br>國立彰化師範大學<br>光電科技研究所<br>96<br>The objective of my thesis is mainly to investigate influence of capping layer on magneto-optical Kerr effect in magnetic sheet-film systems. To prevent the unwanted oxidation of the magnetic layer, we overlay the capping layer on the optically magnetic layer. With a capping layer, the magnetic character of the magnetic layer didn’t change and the capping layer increase intensity of the kerr rotation. We change three materials of capping layer. The three materials are SiNX, MgO, and Ta. With change the material of the capping layer, we also change the depth o

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35

Muñoz, Sepúlveda Patricio A. "Fully kinetic PiC simulations of current sheet instabilities for the Solar corona." Doctoral thesis, 2015. http://hdl.handle.net/11858/00-1735-0000-0023-964F-4.

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36

Hsupeng, Boryau, and 徐彭伯堯. "Formation of discontinuities and expansion waves in the outflow region of magnetic reconnection in an asymmetric current sheet." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/93992301969362824267.

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碩士<br>國立中央大學<br>太空科學研究所<br>103<br>The current sheets observed in the solar wind, magnetopause, and nightside plasma sheet can be asymmetric, in which the plasma densities and/or magnetic field magnitudes on the two sides of the current sheet are not equal. A hybrid code is used to simulate the 1-D Riemann problem for the generation and evolution of MHD discontinuities and expansion waves in the outflow region of magnetic reconnection in an asymmetric current sheet. In a symmetric current sheet, four types of compound structures are found: (a) RD-SS compound structure: slow shock (SS) is attach

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37

Yang, Nai-Ju, and 楊乃如. "Flow and heat transfer of viscoelastic fluids saturated in porous media over a stretching sheet subject to a uniform transverse magnetic field." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/01131595551092144809.

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碩士<br>國立暨南國際大學<br>土木工程學系<br>94<br>The study for flow and heat transfer in a steady laminar boundary layer flow is presented analytically for an incompressible viscoelastic fluid saturated in a porous medium subject to a transverse uniform magnetic field past a semi-infinite stretching sheet with a quadratic distribution of surface temperature and quadratic distribution of surface heat flux, respectively. Applying the boundary layer theory proposed by Prandtl in 1904, we simplify the momentum and energy equations to a set of ordinary differential equations using a similarity transform. The ener

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38

Raath, Jan Louis. "A comparative study of cosmic ray modulation models / Jan Louis Raath." Thesis, 2015. http://hdl.handle.net/10394/15516.

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Until recently, numerical modulation models for the solar modulation of cosmic rays have been based primarily on finite difference approaches; however, models based on the solution of an appropriate set of stochastic differential equations have become increasingly popular. This study utilises such a spatially three-dimensional and time-stationary model, based on that of Strauss et al. (2011b). The remarkable numerical stability and powerful illustrative capabilities of this model are utilised extensively and in a distinctly comparative fashion to enable new insights into the processes of modul

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39

Sonti, Rajesh. "Conformational Analysis of Designed and Natural Peptides : Studies of Aromatic/Aromatic and Aromatic/Proline Interactions by NMR." Thesis, 2013. http://etd.iisc.ac.in/handle/2005/3335.

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This thesis describes NMR studies which probe weak interactions between amino acid side chains in folded peptide structures. Aromatic/aromatic interactions between facing phenylalanine residues have been probed in antiparallel β-sheets, while aromatic/proline interactions have been examined using cyclic peptide disulfides that occur in the venom of marine cone snails. Novel intramolecular hydrogen bonded structures in hybrid peptides containing backbone homologated residues, specifically γ-amino acids, are also described. Chapter 1 provides a brief background to the principles involved in th

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Xing, Xiaoyan. "Criterion for interchange instability in the plasma sheet." Thesis, 2008. http://hdl.handle.net/1911/22255.

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Interchange instability is an important dynamic mechanism in plasma physics and has been advanced as an explanation of a variety of phenomena in the magnetospheric physics. This work derives a new instability criterion for interchange motion in a plasma that connects to a finite-conductivity wall. The new criterion is for a arbitrary magnetic <beta> (ratio between thermal pressure and magnetic pressure averaged within flux tube) system, which contains background shear flow, whereas most classical criteria did not consider all of these conditions. Thus this new result is more appropriate to

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Sonti, Rajesh. "Conformational Analysis of Designed and Natural Peptides : Studies of Aromatic/Aromatic and Aromatic/Proline Interactions by NMR." Thesis, 2013. http://etd.iisc.ernet.in/2005/3335.

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This thesis describes NMR studies which probe weak interactions between amino acid side chains in folded peptide structures. Aromatic/aromatic interactions between facing phenylalanine residues have been probed in antiparallel β-sheets, while aromatic/proline interactions have been examined using cyclic peptide disulfides that occur in the venom of marine cone snails. Novel intramolecular hydrogen bonded structures in hybrid peptides containing backbone homologated residues, specifically γ-amino acids, are also described. Chapter 1 provides a brief background to the principles involved in th

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KUNCLOVÁ, Kateřina. "Ověření pozičního chování u savců." Master's thesis, 2017. http://www.nusl.cz/ntk/nusl-320564.

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This thesis was focused on determining the orientation of the body of domestic sheep while grazing or resting. Attention was also paid to the assessment of environmental conditions that may affect the position of animal behaviour. Data were collected through the direct observation compared to the previous studies, which have been based on satellite images from Google Earth. In this experiment, only selected designated individuals were evaluated. The direct observation detected the individual preferences of animals, not only the direction but also the location. The evaluating of photos of the a

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鬼頭, 哲太郎, and Tetsutaro Kito. "iPS cell sheets created by a novel magnetite tissue engineering method for reparative angiogenesis." Thesis, 2013. http://hdl.handle.net/2237/18436.

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Kumar, Rajeev. "Synthesis and development of multifunctional carbonaceous nanostructures for magnetic, optical and catalytic applications." Thesis, 2019. https://etd.iisc.ac.in/handle/2005/4951.

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Owing to the ease of functionalization, low synthesis-cost and polymorphism, carbonaceous nanostructures such as carbon globules, nanotubes (CNTs) and graphene sheets emerged technologically as one of the most important class of multifunctional materials. In this thesis a wide variety of carbon based nanostructures were synthesized by the simple pyrolysis method, characterized and their applicabilities are demonstrated. Among the synthesized materials, metallic particles embedded amorphous carbon globules, CNTs of different morphologies such as spiralling tendrils, cup and box type bambo

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O'Connell, Adam Brett. "Development of an acute excitotoxic model of Huntington's disease in sheep." Thesis, 2020. http://hdl.handle.net/2440/127292.

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Huntington’s disease (HD) is an autosomal dominant neurodegenerative disorder. The earliest and most severe neuropathological change in HD occurs within the striatum. Exogenous excitotoxic lesioning of the rodent and non-human primate (NHP) striatum is used to model HD. Apart from NHPs, no other excitotoxic large animal model of HD has been established. Sheep have the potential to be an important species for modelling neurodegenerative disease, primarily because of neuroanatomical similarities between the sheep and human brain. This thesis describes the development of an excitotoxic sheep mode

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Viana, José Pedro Cruz da Rocha. "Estudo e caracterização mecânica por via experimental de modelos de subestruturas eletromecânicas aplicadas ao fabrico de transformadores de grande potência." Master's thesis, 2015. http://hdl.handle.net/1822/40207.

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Dissertação de mestrado integrado em Engenharia Mecânica<br>Durante o projeto de um transformador de potência é importante que se faça a prevenção da ocorrência de falhas que podem colocar o equipamento fora de serviço, e assim, gerar elevados prejuízos económicos, entre outros. De acordo com os vários registos na área das falhas dos transformadores de potência, aquela que apresenta uma maior taxa de ocorrência e que, por sinal, é a que coloca mais transformadores fora de serviço, é a falha por curto-circuito. O trabalho aqui desenvolvido relaciona-se com continuo desenvolvimento do proje

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