Relevant bibliographies by topics / Thermal field model / Dissertations / Theses
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Dissertations / Theses on the topic 'Thermal field model'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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1

Bawana, Niyem Mawenbe. "Thermal Response in a Field Oriented Controlled Three-phase Induction Motor." Scholar Commons, 2019. https://scholarcommons.usf.edu/etd/7740.

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The research conducted at the department of Electrical Engineering of the University of South Florida campus in Tampa only covers the electrical aspect of electric drives. However, the performance of electric machinery is significantly impacted by temperature variation. The literature review shows three main control techniques in use today in electric drives namely, Scalar control, Direct Torque control and Field Oriented control. This thesis presents a temperature rise of rotor bars, stator winding, stator core and stator frame in a running three phase field-oriented controlled induction mach
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2

Huang, Zhida. "SIMULATION OF METAL GRAIN GROWTH IN LASER POWDER BED FUSION PROCESS USING PHASE FIELD THERMAL COUPLED MODEL." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case1554391043588225.

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3

MacGinitie, Laura A. "Electrical and thermal modulation of protein synthesis in cartilage : a model for field effects on biological tissues." Thesis, Massachusetts Institute of Technology, 1988. http://hdl.handle.net/1721.1/17222.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1988.<br>Title as it appears in M.I.T. Graduate List, Feb. 1988: Electrical and thermal modulation of protein synthesis in cartilage--a model for electric field effects on biological tissues.<br>Bibliography: leaves 264-281.<br>by Laura A. MacGinitie.<br>Ph.D.
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4

Spiegel, Colleen. "Mathematical modeling of polymer exchange membrane fuel cells." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002730.

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5

Seaman, Shane Thomas. "Material Related Effects on the Structural Thermal Optical Performance of a Thermally Tunable Narrowband Interferometric Spectral Filter." Diss., Virginia Tech, 2019. http://hdl.handle.net/10919/90799.

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High Spectral Resolution Lidar (HSRL) is a backscatter lidar technique that employs an optical/spectral filter to distinguish between particulate (Mie) and molecular (Rayleigh) backscattered light. By separating the two types of returns, higher accuracy measurements are possible that will enable improved climate models, air quality measurements, and climate forecasting. A spaceborne HSRL instrument can provide great impact in these areas by enabling near-continuous measurements across the Earth, however the optical filter technology has typically been too complex for reliable long-duration spa
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6

LI, GUOHONG. "Variable Kinematic Finite Element Formulations Applied to Multi-layered Structures and Multi-field Problems." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2729361.

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7

上原, 拓也, Takuya UEHARA, 貴洋 辻野 та Takahiro TSUJINO. "フェーズフィールドモデルを用いた変態‐熱‐応力連成解析の定式化". 日本機械学会, 2006. http://hdl.handle.net/2237/9012.

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8

Hasan, Md Mahmudul. "Thermal comfort conditions and perception by staff and patients in a Swedish health care center : A measurement and survey field study for summer conditions." Thesis, Högskolan i Gävle, Avdelningen för byggnadsteknik, energisystem och miljövetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-34161.

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A challenging aspect of modern global development is to provide desired thermal environment for building occupants with optimum consideration of energy and occupants health and satisfaction, both physically and psychologically. The variation of activity level, health condition, needs, clothing habit and staying time of different categories of occupants in hospitals makes it critical where comfort level should be optimized. Now-a-days, tremendous changing on climate makes even more challenging to maintain optimum level of indoor thermal environment at low energy cost. Thermal comfort can be ass
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9

Bagnoli, Annalisa. "Diffuse interface models for tumour growth within a non-isothermal Cahn-Hilliard theory for phase separation: thermodynamics, chemotaxis and stability." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2017. http://amslaurea.unibo.it/14120/.

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In this thesis we provide a scheme for phase separation by accounting for diffusion, dynamic equations and consistency with thermodynamics. The constituents are two compressible fluids and, for the non-simple character of the mixture, an extra energy flux is allowed to occur. Since also thermal effects are included, the result is a whole set of evolution equations for the concentration, the velocity and the temperature which describes a non-isothermal Navier-Stokes-Cahn-Hilliard model for phase separation in a binary mixture with extra fluxes and within the Fourier heat theory. Alternative hea
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10

Castellví, Fernández Quim. "Non-focal non-thermal electrical methods for cancer treatment." Doctoral thesis, Universitat Pompeu Fabra, 2017. http://hdl.handle.net/10803/586217.

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Most physical ablation modalities for cancer treatment are focal and are based on thermal damage. Despite their regular clinical use as an alternative to surgical resection, their thermal principle of operation entails risks regarding the preservation of neighboring vital structures, such as large vessels, critical ducts or nerves. In addition, being focal, their use is unpractical in cases where multiple nodules are present or tumors are difficult to reach with the applicators. This thesis explores non-thermal electrical treatments which can be applied in a non-focal manner. Two treatments
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11

上原, 拓也, Takuya UEHARA, 貴洋 辻野 та Takahiro TSUJINO. "フェーズフィールドモデルによる析出相内部の応力変化と残留応力のシミュレーション". 日本機械学会, 2006. http://hdl.handle.net/2237/9013.

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12

Mahnic̆-Kalamiza, Samo. "Effects of electrical and thermal pre-treatment on mass transport in biological tissue." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2247/document.

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Le champ électrique d'une puissance suffisante peut provoquer une augmentation de conductivité et perméabilité de la membrane cellulaire. L'effet est connu comme l'électroporation, attribuée à la création de voies aqueuses dans la membrane. Quantifier le transport de la matière dans le cadre d'électroporation est un objectif important. Comprendre ces processus a des ramifications dans l’extraction du jus ou l’extraction sélective des composés de cellules végétales, l'amélioration de l'administration de médicaments, et des solutions aux défis environnementaux. Il y a un manque de modèles qui po
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13

Wirnsberger, Peter. "Computer simulation and theoretical prediction of thermally induced polarisation." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/282988.

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In this thesis, we study the phenomenon of thermally induced polarisation using a combination of theory and computer simulation. Molecules of sufficiently low symmetry exhibit thermo-molecular orientation when subjected to a temperature gradient, leading to considerable electrostatic fields in polar liquids. Here, we first use non-equilibrium molecular dynamics simulations to study this interesting effect numerically. To this end, we propose an integration algorithm to impose a constant heat flux in simulations and show that it greatly improves energy conservation compared to a previous algori
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14

Alwakil, Ahmed Diaaeldin. "Illusions thermiques basées sur les métamatériaux et les métasurfaces : conduction et rayonnement." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0209/document.

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Les techniques de camouflage, mimétisme ou invisibilité ont récemment connu une forte émergence, qui se poursuit aujourd’hui avec l’apparition des méta-surfaces. C’est dans ce contexte que ce travail de doctorat a été réalisé, notamment avec un premier objectif d’étendre ces outils et concepts aux problèmes inverses du domaine de la diffusion de la chaleur. La suite du travail a concerné le rayonnement thermique, les méta-surfaces et les transformations de champ. Après avoir étendu les techniques de mimétisme au domaine de la conduction, nous avons résolu le problème inverse associé, qui consi
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15

Madhavi, S. "Carrier Mobility And High Field Transport in Modulation Doped p-Type Ge/Si1-xGex And n-Type Si/Si1-xGex Heterostructures." Thesis, Indian Institute of Science, 2000. https://etd.iisc.ac.in/handle/2005/294.

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Modulation doped heterostructures have revolutionized the operation of field effect devices by increasing the speed of operation. One of the factors that affects the speed of operation of these devices is the mobility of the carriers, which is intrinsic to the material used. Mobility of electrons in silicon based devices has improved drastically over the years, reaching as high as 50.000cm2/Vs at 4.2K and 2600cm2/Vs at room temperature. However, the mobility of holes in p-type silicon devices still remains comparatively lesser than the electron mobility because of large effective masses and co
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Madhavi, S. "Carrier Mobility And High Field Transport in Modulation Doped p-Type Ge/Si1-xGex And n-Type Si/Si1-xGex Heterostructures." Thesis, Indian Institute of Science, 2000. http://hdl.handle.net/2005/294.

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Modulation doped heterostructures have revolutionized the operation of field effect devices by increasing the speed of operation. One of the factors that affects the speed of operation of these devices is the mobility of the carriers, which is intrinsic to the material used. Mobility of electrons in silicon based devices has improved drastically over the years, reaching as high as 50.000cm2/Vs at 4.2K and 2600cm2/Vs at room temperature. However, the mobility of holes in p-type silicon devices still remains comparatively lesser than the electron mobility because of large effective masses and co
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17

Hodges, Christopher Sean. "Theory and practice of near-field thermal probes for microscopy and thermal analysis." Thesis, Lancaster University, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322519.

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18

Славков, Віктор Миколайович. "Розробка цифрового фотографічного методу теплового контролю металів при високих температурах". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/17036.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.11.13 - прилади і методи контролю та визначення складу речовин. Національний технічний університет "Харківський політехнічний інститут", Харків, 2015 р. Дисертацію присвячено розробці методу теплового контролю металів при температурах понад 600 °С із використанням, у якості детектора теплового випромінювання, цифрового фотоапарата. На основі встановлених теоретичних положень методу розроблені програмні алгоритми обробки цифрових зображень, що дозволили: провести процедуру калібрування цифрового фотоапарата у
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19

Славков, Віктор Миколайович. "Розробка цифрового фотографічного методу теплового контролю металів при високих температурах". Thesis, НТУ "ХПІ", 2015. http://repository.kpi.kharkov.ua/handle/KhPI-Press/17002.

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Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.11.13 - прилади і методи контролю та визначення складу речовин. Національний технічний університет "Харківський політехнічний інститут", Харків, 2015 р. Дисертацію присвячено розробці методу теплового контролю металів при температурах понад 600 °С із використанням, у якості детектора теплового випромінювання, цифрового фотоапарата. На основі встановлених теоретичних положень методу розроблені програмні алгоритми обробки цифрових зображень, що дозволили: провести процедуру калібрування цифрового фотоапарата у
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20

Terril, Nathaniel D. "Field Simulation for the Microwave Heating of Thin Ceramic Fibers." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36863.

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Microwave processing of ceramics has seen a growth in research and development efforts throughout the past decade. One area of interest is the exploration of improved heating control through experiments and numerical modeling. Controlled heating may be used to counteract non-uniform heating and avoid destructive phenomena such as cracking and thermal runaway. Thermal runaway is a potential problem in materials with temperature dependent dielectric properties. As the material absorbs electromagnetic energy, the temperature increases as does its ability to absorb more energy. Controlled pro
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21

Pimentel, Franciele de Oliveira. "Clima urbano: o uso de modelos geoespaciais na investigação do comportamento térmico em Juiz de Fora- MG." Universidade Federal de Juiz de Fora (UFJF), 2017. https://repositorio.ufjf.br/jspui/handle/ufjf/5618.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-08-18T12:28:54Z No. of bitstreams: 1 francieledeoliveirapimentel.pdf: 21371696 bytes, checksum: 9023a65af1ac898680a97f2fd00f4bc2 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-08-24T12:01:11Z (GMT) No. of bitstreams: 1 francieledeoliveirapimentel.pdf: 21371696 bytes, checksum: 9023a65af1ac898680a97f2fd00f4bc2 (MD5)<br>Made available in DSpace on 2017-08-24T12:01:11Z (GMT). No. of bitstreams: 1 francieledeoliveirapimentel.pdf: 21371696 bytes, checksum: 9023a65af1ac898680a97f2fd00f4bc2
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22

Mhadji, Abdoussalam. "Développement d’un modèle à gradient d’endommagement pour la simulation de couplage thermique-mécanique : application à la dégradation des matériaux composites." Electronic Thesis or Diss., Chasseneuil-du-Poitou, Ecole nationale supérieure de mécanique et d'aérotechnique, 2025. http://www.theses.fr/2025ESMA0002.

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L'utilisation de matériaux composites est courante dans les structures où la réduction de poids est essentielle, tout en maintenant des propriétés de rigidité et de résistance élevées. Cependant, ces matériaux sont inflammables, ce qui augmente les risques d'incendie. Il est généralement observé qu’un flux de chaleur provoque la transformation du matériau composite sain en charbon, ce qui entraîne une dégradation de ses propriétés mécaniques et une modification de ses propriétés thermiques initiales. Cependant, l’influence de l’hétérogénéité microstructurale sur la dégradation thermique, ainsi
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23

Gursoy, Zeynep Ece. "A Numerical Investigation Of Helicopter Flow Fields Including Thermal Effects Of Exhaust Hot Gases." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611128/index.pdf.

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This thesis investigates the flow field of a twin-engine, medium lift utility helicopter numerically. The effects of the exhaust hot gases emerging from the engines are accounted for in the numerical study. The commercial computational fluid dynamics (CFD) software ANSYS Fluent is employed for the computations. While the effects of engines are included in the computations through simple inlet and outlet boundary conditions, the main and tail rotors are simulated by the Virtual Blade Model in a time-averaged fashion. Forward flight at four different advance ratios and hover in ground effect are
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24

Park, Keunhan. "Thermal Characterization of Heated Microcantilevers and a Study on Near-Field Radiation." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14597.

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Recently, remarkable advances have been made in the understanding of micro/nanoscale energy transport, opening new opportunities in various areas such as thermal management, data storage, and energy conversion. This dissertation focuses on thermally-sensed nanotopography using a heated silicon microcantilever and near-field thermophotovoltaic (TPV) energy conversion system. A heated microcantilever is a functionalized atomic force microscope (AFM) cantilever that has a small resistive heater integrated at the free end. Besides its capability of increasing the heater temperature over 1,000 K,
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25

Rodríguez, Buño Mariana. "Near and far field models of external fluid mechanics of Ocean Thermal Energy Conversion (OTEC) power plants." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/79495.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 126-130).<br>The world is facing the challenge of finding new renewable sources of energy - first, in response to fossil fuel reserve depletion, and second, to reduce greenhouse gas emissions. Ocean Thermal Energy Conversion (OTEC) can provide renewable energy by making use of the temperature difference between the surface ocean and deep ocean water in a Rankine cycle. An OTEC plant pumps huge volumes of wa
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26

Mirza, Ahmed Akram. "Pressure driven instabilities in the reversed-field pinch : numerical and theoretical studies." Doctoral thesis, KTH, Fusionsplasmafysik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-121345.

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According to classical linearized resistive magnetohydrodynamics theory, pressuredriven modes are unstable in the reversed-field pinch (RFP) due to unfavorable magnetic field line curvature. The result is based on the assumption of an adiabatic energy equation where anisotropic thermal conduction effects are ignored as compared to convection and compression. In this thesis the effects of heat conduction in the energy equation have been studied. We have examined these effects on the linear stability of pressure-driven resistive modes using boundary value theory (Δ´ ) and a novel initial-value f
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27

Dionne, Martin. "Optimized carbon nanotube array cathodes for thermo-field emission in plasmas: a theoretical model and an experimental verification." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97045.

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In this work we developed a 3-D theoretical model for plasma-enhanced thermo-field emission from nanostructured cathodes in the absence of significant erosion. Our first studies indicated that very dense arrays of vertically-aligned carbon nanotubes (CNT) acting as electron emitters in vacuum could sustain the temperatures resulting from very high surface-averaged current densities such as those found in the cathode spots of arc discharges on non-refractory cathodes. A comparative study of the electron emission models for cold surfaces subjected to strong electric field revealed the existence
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28

Ó, João Gustavo da Silva Santos. "Relaxação em sistemas quânticos simples: aplicação da dinâmica de campos térmicos no modelo de jaynnes-cummings." Universidade Federal de Campina Grande, 2016. http://dspace.sti.ufcg.edu.br:8080/jspui/handle/riufcg/2001.

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Submitted by Emanuel Varela Cardoso (emanuel.varela@ufcg.edu.br) on 2018-10-17T18:35:17Z No. of bitstreams: 1 JOÃO GUSTAVO DA SILVA SANTOS Ó – DISSERTAÇÃO (PPGFísica) 2016.pdf: 3276092 bytes, checksum: f4b6dd7217e33af856588a93c1291306 (MD5)<br>Made available in DSpace on 2018-10-17T18:35:17Z (GMT). No. of bitstreams: 1 JOÃO GUSTAVO DA SILVA SANTOS Ó – DISSERTAÇÃO (PPGFísica) 2016.pdf: 3276092 bytes, checksum: f4b6dd7217e33af856588a93c1291306 (MD5) Previous issue date: 2016-07<br>Capes<br>Desenvolvemos neste trabalho um estudo teórico da aplicação da dinâmica de campo térmico sobre o modelo
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29

Esper, Alexandre. "Etude et réductiοn des dérives en température aux basses fréquences des magnétοmètres à haute sensibilité à base de Μagnetο-Ιmpédance Géante (ΜΙG) : réduction des fluctuations l'offset en température". Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC247.

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L'effet Magnéto-Impédance Géante (MIG) se manifeste par une forte variation de l’impédance d’un conducteur ferromagnétique parcouru par un courant alternatif et soumis à un champ magnétique variable. Ces dernières années, de nombreuses activités de recherches ont porté sur l'accroissement de la sensibilité en champ de ces dispositifs. Les valeurs atteintes aujourd’hui permettent de réaliser un magnétomètre à très haute sensibilité. Cependant, peu d’études se sont intéressées aux effets de la variation de la température de MIG et à sa stabilité à long terme. Mon travail de thèse présente une ét
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30

Beyers, Johannes Henricus Meiring. "A finite volume method for the analysis of the thermo-flow field of a solar chimney collector." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/51568.

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Thesis (MEng)--University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: This study investigates the implementation of the finite volume numerical method applicable to non-orthogonal control volumes and the application of the method to calculate the thermo-flow field within the collector area of a solar chimney power generating plant. The discretisation of the governing equations for the transient, Newtonian, incompressible and turbulent fluid flow, including heat transfer, is presented for a non-orthogonal coordinate frame. The standard k - E turbulence model, modified to include rough s
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31

Choudhury, Noor. "Reliability prediction of electronic products combining models, lab testing and field data analysis." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202594.

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At present there are different reliability standards that are being used for carrying out reliability prediction. They take into consideration different factors, environments and data sources to give reliability data for a wide range of electronic components. However, the users are not aware of the differences between the different reliability standards due to the absence of benchmarks of the reliability standards that would help classify and compare between them. This lack of benchmark denies the users the opportunity to have a top-down view of these different standards and choose the appropr
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32

Sandström, Joakim. "Thermal boundary conditions based on field modeling of fires : Heat transfer calculations in CFD and FE models with special regards to fire exposure represented with adiabatic surface temperatures." Licentiate thesis, Luleå tekniska universitet, Byggkonstruktion och -produktion, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-17367.

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Combining computer fluid dynamic, CFD, models with finite element, FE, models to calculate temperature in fire exposed structures can reduce design temperatures in structures while still obtaining the level of structural fire safety stipulated by society. A better understanding of heat transfer and the concept of adiabatic surface temperatures, AST, the transition of data between models can be simplified and more accurate temperature predictions can be made.The thesis focuses on heat transfer calculations by employing AST in particular, and how this can be used as a means of coupling any CFD a
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33

Calza, Thiago Cheble Alves. "Modelo de Ginzburg-Landau a partir da teoria de campos a temperatura finita." Universidade do Estado do Rio de Janeiro, 2015. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=8735.

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Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>Neste trabalho, utilizamos o formalismo de teorias quânticas de campos a temperatura finita, tal como desenvolvidas por Matsubara, aplicado a uma hamiltoniana de N campos escalares com autointeração quártica a N grande. Obtém-se uma expressão, na primeira aproximação quântica, para o coeficiente do termo quadrático da hamiltoniana ("massa quadrada"), renormalizado, como função da temperatura. A partir dela, estudamos o processo de quebra espontânea de simetria. Por outro lado, a mesma hamiltoniana é conhecida como modelo de Ginzb
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34

Salehi, Kasmaei Babak. "NONEQUILIBRIUM PROBES OF THE QUARK-GLUON PLASMA." Kent State University / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=kent1627035862984205.

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35

Journeaux, Antoine. "Modélisation multi-physique en génie électrique Application au couplage magnéto-thermo-mécanique." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00920289.

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Cette thèse aborde la problématique de la modélisation multiphysique en génie électrique, avec une application à l'étude des vibrations d'origine électromagnétique des cages de développantes. Cette étude comporte quatre parties : la construction de la densité de courant, le calcul des forces locales, le transfert de solutions entre maillages et la résolution des problèmes couplés. Un premier enjeu est de correctement représenter les courants, cette opération est effectuée en deux étapes : la construction de la densité de courant et l'annulation de la divergence. Si des structures complexes son
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36

Charvátová, Pavlína. "Matematická simulace průběhu teplot v podzákladí a vytvoření modelu odpovídajícího reálnému stavu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta stavební, 2020. http://www.nusl.cz/ntk/nusl-433509.

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Increasing demands for low heat losses and energy intensity of a building influence energy calculations. Higher demands are placed on the accuracy of the calculations. An important part of the thermal engineering calculations is the determination of the correct boundary conditions. An important input factor is primarily the indoor and outdoor environment, and temperature is the most important parameter for these types of enviromnent. It is not always the temperature of the external environment, but the environment that is adjacent to the soil or to unheated or differently heated spaces. The po
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37

Willschütz, Hans-Georg. "Thermomechanische Modellierung eines Reaktordruckbehälters in der Spätphase eines Kernschmelzunfalls." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2006. http://nbn-resolving.de/urn:nbn:de:swb:14-1138712734373-55289.

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Considering the late in-vessel phase of an unlikely core melt down scenario in a light water reactor (LWR) with the formation of a corium pool in the lower head of the reactor pressure vessel (RPV) the possible failure modes of the RPV and the time to failure have to be investigated to assess the possible loadings on the containment. In this work, an integral model was developed to describe the processes in the lower plenum of the RPV. Two principal model domains have to be distinguished: The tem-perature field within the melt and RPV is calculated with a thermodynamic model, while a mechanica
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38

Willschütz, Hans-Georg. "Thermomechanische Modellierung eines Reaktordruckbehälters in der Spätphase eines Kernschmelzunfalls." Doctoral thesis, Technische Universität Dresden, 2005. https://tud.qucosa.de/id/qucosa%3A24635.

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Considering the late in-vessel phase of an unlikely core melt down scenario in a light water reactor (LWR) with the formation of a corium pool in the lower head of the reactor pressure vessel (RPV) the possible failure modes of the RPV and the time to failure have to be investigated to assess the possible loadings on the containment. In this work, an integral model was developed to describe the processes in the lower plenum of the RPV. Two principal model domains have to be distinguished: The tem-perature field within the melt and RPV is calculated with a thermodynamic model, while a mechanica
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39

Abdallah, Ghassan. "La convection thermique dans les milieux fracturés : modélisation avec la méthode des éléments distincts." Vandoeuvre-les-Nancy, INPL, 1994. http://www.theses.fr/1994INPL126N.

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L’étude des phénomènes couplés thermo-hydro-mécaniques intéresse la communauté scientifique aujourd'hui confronté au problème du stockage des déchets. La modélisation est un outil essentiel pour prédire l'évolution complexe du milieu hôte et de ces déchets. Parmi les approches numériques existants, on distingue les approches de types éléments finis et les approches de type éléments distincts. Si la première, plus ancienne, a déjà donné lieu à de nombreux développement et applications, elle rend mal quelquefois la réalité du massif rocheux fracturé. Nous avons souhaité cette dernière approche e
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40

Troussaut-Bertrand, Francine. "Etude du KH2PO4 au voisinage du point tricritique : mesures de biréfringence sous pression et détermination des coefficients d'électrostriction." Grenoble 1, 1987. http://www.theses.fr/1987GRE10039.

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Mise en evidence de la possibilite d'etude des variations du parametre d'ordre, en fonction de la pression, de la temperature et du champ electrique, a partir de mesures de birefringence; confirmation de l'ordre de transition de rbh::(2)po::(4) et etude du diagramme de phases 3d de kh::(2)po::(4) au voisinage d'un point tricritique. Etude des proprietes electromecaniques de kh::(2)po::(4) par une nouvelle technique de diffraction simultanee neutron-gamma, dans le but de preciser la relation entre les variations du parametre d'ordre et les anomalies de la dilatation au voisinage de la transitio
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41

Chan, Chen-Chieh, and 陳均杰. "Field Model for Fire Thermal Fluid Field in Wei-Er-Kang Restaurant." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/73702860332743401731.

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碩士<br>元智大學<br>機械工程學系<br>96<br>Taiwan is populous in recent years, according to the statistics data of the Ministry Of Interior. Between 1997 and 2006, the population density of Taiwan is 618.7 persons per square kilometer. The security problems in public places are relatively important too. In accordance with the data of Fire Agency, from 1997 to 2006, there are 10% of building fire occurred in public places. Although there is merely 10%, yet the fires in public places are easy to be neglected and difficult to be controlled. If once there is a fire, it will often lead to great casualties and p
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Cheng, Chao-Jung, and 鄭朝榮. "Thermal Fluid Field Model Simulation for a Townhouse Fire in Yang-mei." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/40929436903744536588.

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碩士<br>元智大學<br>機械工程學系<br>98<br>During the past decades in Taiwan, there were many fire cases occurred in apartment buildings, and most of which were often illegally rebuilt with metal sheet. In recent years, despite the rapid economy development in Taiwan, there still standing a lot of this kind of houses in villages and towns. Due to lack of overall rebuild plan, the inner old electric wire and the improper use of electric devices, plus narrow street sidewalks parked with cars which prevented fire engine from entering, as well as dense population and residential environment, if the fire happen
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43

Flynn, David. "Field and numerical studies of an instrumented highway embankment in degrading permafrost." 2015. http://hdl.handle.net/1993/30336.

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There is a growing need to improve the understanding of the behaviour of infrastructure in permafrost regions. Permafrost affects nearly half of the land surface in Canada, especially in the north. Further development of natural resources in northern Canada will provide socio-economic benefits to the region and its residents. Linear infrastructure, such as highways, is an important part of that development. The integrity of infrastructure in northern regions is negatively impacted by thawing and degradation of the underlying permafrost initiated by changes in both air and ground temperatures.
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44

"Predicting thermal performance of building design in Hong Kong: scale-model measurement and field study." 2004. http://library.cuhk.edu.hk/record=b5892127.

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Cheng Bo-ki.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2004.<br>Includes bibliographical references (leaves 150-153).<br>Abstracts in English and Chinese.<br>Chapter chapter 1 --- Introduction --- p.10<br>Chapter chapter 2 --- Background & Literature --- p.15<br>Chapter 2.1 --- Why Environmental Design? --- p.15<br>Comfort and Energy --- p.15<br>"Our Problems: Energy, Environment, and Health" --- p.19<br>Chapter 2.2 --- Knowledge in Environmental Design --- p.27<br>What is Environmental Design? --- p.27<br>Current knowledge in Environmental Design: Thermal Performance --- p
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Borkowski, Krzysztof. "Experimental study and theoretical modelling of pipeline girth welding." Thesis, 2015. http://hdl.handle.net/2440/103735.

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The thermal field induced by arc welding has been the subject of numerous experimental, analytical and numerical studies in the past. However, few studies have focused on the effects of the local geometry and pipeline welding procedure on the transient thermal field at or near the vicinity of the weldline. The local geometry and welding procedures are often simplified in computational or analytical studies and normally disregarded in quantitative assessments. The objective of this thesis is to evaluate the significance of these effects in order to understand their possible influence on the wel
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Stangl, Zsofia Réka. "Acclimation of plants to combinations of abiotic factors : connecting the lab to the field." Doctoral thesis, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-133982.

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Increasing atmospheric CO2 and other greenhouse gasses coupled to the accelerated rate of global warming puts plants and ecosystems under the strain of a rapidly changing abiotic environment. Understanding the impacts of changing global climate is a strong focus of plant science and the establishment of more resilient crop variants is an important goal for breeding programs. Our understanding of plant responses and acclimation to abiotic conditions has improved substantially over the last decades but the combination of a complex abiotic environment and high biological diversity, both on molecu
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Min-HsiungHung and 洪敏雄. "Study for Flow Field and Thermal Field of Thin Slab Mold by Physical Models and Numerical Simulation." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/21499513189321552424.

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碩士<br>國立成功大學<br>材料科學及工程學系碩博士班<br>101<br>In this study, a physical model and a mathematical model have been developed to analysis the flow field and thermal field in the funnel-type mold of thin slab continuous casting. In the physical model experiment, a 0.5 scale model is used to analysis the influences of flow field with three types of nozzle. In order to simulate the real situation of thin slab continuous casting, a cooling system is built around the water model to cool down the mold and grow the solidification shell in the water model. By using this cooling system, the change of flow chara
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"Experimental investigation of structure function and flow circulatin of the velocity field in turbulent thermal convection." 2011. http://library.cuhk.edu.hk/record=b5894664.

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Qi, Pengfei = 湍流熱對流中速度場結構函數和流動循環的實驗研究 / 齊鵬飛.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2011.<br>Includes bibliographical references (p. 65-69).<br>Abstracts in English and Chinese.<br>Qi, Pengfei = Tuan liu re dui liu zhong su du chang jie gou han shu he liu dong xun huan de shi yan yan jiu / Qi Pengfei.<br>Abstract --- p.i<br>摘要 --- p.ii<br>Acknowledgements --- p.iii<br>Contents --- p.iv<br>List of Figures --- p.vi<br>List of Tables --- p.X<br>Chapter Chapter 1 --- Introduction --- p.1<br>Chapter 1.1 --- What is turbulence? --- p.1<br>Chapter 1.2 --- Why study turbulence a
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Wu, Hsueh Wen, and 吳雪雯. "Model Spectra of Surface Thermal Emission from Neutron Stars with Strong Magnetic Fields." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/44268283839356677985.

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碩士<br>國立清華大學<br>物理學系<br>91<br>We develop an atmosphere model for neutron stars with strong magnetic fields.　The atmosphere is composed of pure hydrogen.　We assume it is fully ionized and the opacity considered is contributed from　the Thomson scattering and free-free　absorption.　The equation of state has incorporated Coulomb correction.　We have allowed an arbitrary magnetic field direction in our codes for solving the　radiation transfer equation. In this paper,we have performed a computation with a magnetic field of　10^12 G, effective temperature 10^6 K and surface gravity　g*=GM/(R*R)(1-2GM/(R
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Sahoo, Swarandeep. "Improved laboratory and computational models for thermal core–mantle interaction." Thesis, 2018. https://etd.iisc.ac.in/handle/2005/5322.

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The Earth's magnetic field is generated by thermochemical convection within its fluid outer core. The near-stationary high-latitude magnetic flux concentrations in the present day field indicate that convective motion in the outer core is influenced by the thermal inho- mogeneity of the overlying mantle. Heat flow across the core{mantle boundary (CMB) follows the pattern of lateral variations in the lower mantle. In this thesis, thermal core{mantle inter- action and its consequences for dynamo action are investigated through computational and laboratory models. First, the onset of
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