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Дисертації з теми "Thermal field modeling"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 липня 2025

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1

Donmezer, Fatma. "Multiscale electro-thermal modeling of AlGaN/GaN heterostructure field effect transistors." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/53139.

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Анотація:
Understanding the magnitude of the temperature in AlGaN/GaN heterostructure fi eld e ffect transistors(HFETs) is a critical aspect of understanding their reliability and providing proper thermal management. At present, most models used to determine the temperature rise in these devices are based on continuum based heat conduction. However, in such devices, the heat generation region can be on the order of or smaller than the phonon mean free path of the heat carriers, and thus, such models may under predict the temperature. The aim of this work is towards building a multiscale thermal model th
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2

Christensen, Adam Paul. "Multiscale modeling of thermal transport in gallium nitride microelectronics." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31681.

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Thesis (Ph.D)--Mechanical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Samuel Graham; Committee Member: Donald Dorsey; Committee Member: Douglas Yoder; Committee Member: Michael Leamy; Committee Member: Sankar Nair; Committee Member: Zhuomin Zhang. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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3

James, William Thomas. "Electro-thermal-mechanical modeling of GaN HFETs and MOSHFETs." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/41212.

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Анотація:
High power Gallium Nitride (GaN) based field effect transistors are used in many high power applications from RADARs to communications. These devices dissipate a large amount of power and sustain high electric fields during operation. High power dissipation occurs in the form of heat generation through Joule heating which also results in localized hot spot formation that induces thermal stresses. In addition, because GaN is strongly piezoelectric, high electric fields result in large inverse piezoelectric stresses. Combined with residual stresses due to growth conditions, these effects are bel
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4

Sen, Debamoy. "Coupled Field Modeling of Gas Tungsten Arc Welding." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/38820.

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Welding is used extensively in aerospace, automotive, chemical, manufacturing, electronic and power-generation industries. Thermally-induced residual stresses due to welding can significantly impair the performance and reliability of welded structures. Numerical simulation of weld pool dynamics is important as experimental measurements of velocities and temperature profiles are difficult due to the small size of the weld pool and the presence of the arc. From a structural integrity perspective of welded structures, it is necessary to have an accurate spatial and temporal thermal distribution i
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5

Sidney, Daniel Alan 1966. "Three-dimensional ultrasound power deposition modeling, thermal field visualzation, and clinical integration for hyperthermia therapy." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43464.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Whitaker College of Health Sciences and Technology, 1997.<br>Vita.<br>Includes bibliographical references (p. 257-264).<br>by Daniel Alan Sidney.<br>Ph.D.
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6

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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7

Li, Jingran. "Integration of Physically-based and Data-driven Approaches for Thermal Field Prediction in Additive Manufacturing." Thesis, Virginia Tech, 2017. http://hdl.handle.net/10919/79620.

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Анотація:
A quantitative understanding of thermal field evolution is vital for quality control in additive manufacturing (AM). Because of the unknown material parameters, high computational costs, and imperfect understanding of the underlying science, physically-based approaches alone are insufficient for component-scale thermal field prediction. Here, I present a new framework that integrates physically-based and data-driven approaches with quasi in situ thermal imaging to address this problem. The framework consists of (i) thermal modeling using 3D finite element analysis (FEA), (ii) surrogate modelin
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8

Dai, Wenhua. "Large signal electro-thermal LDMOSFET modeling and the thermal memory effects in RF power amplifiers." Connect to this title online, 2004. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1078935135.

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Анотація:
Thesis (Ph. D.)--Ohio State University, 2004.<br>Title from first page of PDF file. Document formatted into pages; contains xix, 156 p.; also includes graphics (some col.). Includes bibliographical references (p. 152-156).
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9

Thorsell, Thomas. "Advances in Thermal Insulation : Vacuum Insulation Panels and Thermal Efficiency to Reduce Energy Usage in Buildings." Doctoral thesis, KTH, Byggnadsteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-90745.

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We are coming to realize that there is an urgent need to reduce energy usage in buildings and it has to be done in a sustainable way. This thesis focuses on the performance of the building envelope; more precisely thermal performance of walls and super insulation material in the form of vacuum insulation. However, the building envelope is just one part of the whole building system, and super insulators have one major flaw: they are easily adversely affected by other problems in the built environment.  Vacuum Insulation Panels are one fresh addition to the arsenal of insulation materials availa
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10

Hösthagen, Anders. "Thermal Crack Risk Estimation and Material Properties of Young Concrete." Licentiate thesis, Luleå tekniska universitet, Byggkonstruktion och brand, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-65495.

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This thesis presents how to establish a theoretical model to predict risk of thermal cracking in young concrete when cast on ground or an arbitrary construction. The crack risk in young concrete is determined in two steps: 1) calculation of temperature distribution within newly cast concrete and adjacent structure; 2) calculation of stresses caused by thermal and moisture (due to self-desiccation, if drying shrinkage not included) changes in the analyzed structure. If the stress reaches the tensile strength of the young concrete, one or several cracks will occur. The main focus of this work is
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11

Urban, Ferdinand. "Termodynamické poměry ve zhášedle výkonového vypínače NN." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233464.

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Práce se zabývá studiem procesů probíhajících při zhášení silnoproudého oblouku ve zhášecí komoře jističe. Je zaměřena na výpočet dynamiky tekutin a teplotního pole v okolí elektrického oblouku. V práci je dále popsán vliv vzdálenosti plechů v komoře a vliv tvarů plechů z hlediska aerodynamických podmínek uvnitř komory. Dalším cílem dosaženým touto prací je poskytnutí informací o vlivu polohy elektrického oblouku na termodynamické vlastnosti uvnitř komory. Toto je důležité, zejména pokud je oblouk do komory vtahován jinými silami, např. elektromagnetickými a během tohoto vtahovacího procesu mě
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12

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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Анотація:
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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13

Євсеєнко, Олег Миколайович. "Моделі та методи енергозберігаючого керування розподіленими тепловими об'єктами з використанням систем з прогнозуючим фільтром". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/33815.

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Дисертація на здобуття наукового ступеня кандидата технічних наук (доктора філософії) за спеціальністю 05.13.03 «Системи та процеси керування» (151 – Автоматизація та комп’ютерно інтегровані технології) – Національний технічний університет «Харківський політехнічний інститут» Міністерства освіти і науки України, Харків, 2018 р. Дисертацію присвячено аналізу систем керування розподіленими тепловими об’єктами, визначенню їх недоліків для розробки нових енергоефективних методів керування теплопостачанням адміністративних та офісних будівель з використанням систем з прогнозуванням. Розглянуто проб
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14

Євсеєнко, Олег Миколайович. "Моделі та методи енергозберігаючого керування розподіленими тепловими об'єктами з використанням систем з прогнозуючим фільтром". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/33812.

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Анотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.03 – системи та процеси керування.  Національний технічний університет «Харківський політехнічний інститут», Харків, 2018. Дисертація присвячена розробці й удосконаленню методів енергозберігаючого керування розподіленими тепловими об’єктами для застосування в існуючих і нових системах теплопостачання. Запропоновано спосіб керування тепловими об’єктами з розподіленими параметрами з прогнозуванням, де як керуючий вплив використовується ШІМ-сигнал. Набув подальшого розвитку спосіб керування тепловими об’єкта
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15

Semendary, Ali A. "Behavior of Adjacent Prestressed Concrete Box Beam Bridges Containing Ultra High Performance Concrete (UHPC) Longitudinal Joints." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1518181442348314.

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16

Pilechi, Abolghasem. "Numerical Modelling and Field Study of Thermal Plume Dispersion in Rivers and Coastal Waters." Thesis, Université d'Ottawa / University of Ottawa, 2016. http://hdl.handle.net/10393/34614.

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Field measurement and numerical modeling are the most popular and fundamental approaches for studying mixing pattern in rivers and coastal waters. Due to the limitations associated with both of these methods they should be used together to verify each other. Extensive field measurement was conducted on the effluent plume from the outfall of the Capital Region waste water treatment plant in the North Saskatchewan River. Tracer was injected at the outfall location and the mixing pattern was investigated by tracking the tracer concentration over a 83 km reach of the river. Flow velocity and de
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17

Niraula, Dipesh. "Physics and applications of conductive filaments in electronic structures: from metal whiskers to solid state memory." University of Toledo / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1561471348406944.

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18

Sutman, Melis. "Thermo-Mechanical Behavior of Energy Piles: Full-Scale Field Testing and Numerical Modeling." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/82438.

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Energy piles are deep foundation elements designed to utilize near-surface geothermal energy, while at the same time serve as foundations for buildings. The use of energy piles for geothermal heat exchange has been steadily increasing during the last decade, yet there are still pending questions on their thermo-mechanical behavior. The change in temperature along energy piles, resulting from their employment in heat exchange operations, causes axial displacements, thermally induced axial stresses and changes in mobilized shaft resistance which may have possible effects on their behavior. In or
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19

Rothe, Steffen [Verfasser]. "Electro-thermo-mechanical modeling of field assisted sintering technology: experiments, constitutive modeling and finite element analysis / Steffen Rothe." Clausthal-Zellerfeld : Universitätsbibliothek Clausthal, 2015. http://d-nb.info/1071420887/34.

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20

Sonibare, Wasiu Adedayo. "Structure and evolution of basin and petroleum systems within a transformrelated passive margin setting : data-based insights from crust-scale 3D modelling of the Western Bredasdorp Basin, offshore South Africa." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96832.

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Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: This study investigates the crustal structure, and assesses the qualitative and quantitative impacts of crust-mantle dynamics on subsidence pattern, past and present-day thermal field and petroleum system evolution at the southern South African continental margin through the application of a multi-disciplinary and multi-scale geo-modelling procedure involving both conceptual and numerical approaches. The modelling procedure becomes particularly important as this margin documents a complex interaction of extension and strike-
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21

d’, Souza David. "Experimental Characterisation and Modelling of a Membrane Distillation Module Coupled to aFlat Plate Solar Collector Field." Thesis, Högskolan Dalarna, Energiteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:du-28186.

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An experimental characterisation of a pre-commercial spiral wound permeate gap membrane distillation module was carried out to test its performance at different operating conditions for the purpose of seawater desalination. The experimental setup consisted of a flat plate solar collector field indirectly coupled to the permeate gap membrane distillation module via an inertia tank. The operating parameters varied were the condenser inlet temperature (from 20 °C to 30 °C), evaporator inlet temperature (from 60 °C to 80 °C) and seawater feed flow rate (from 200 l/h to 400 l/h). Within this operat
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22

Stojanovic, Bojan. "Lifetime Performance Assessment of Thermal Systems : Studies on Building, Solar and Disctrict Heating Applications." Doctoral thesis, KTH, Byggvetenskap, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10967.

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The main questions today concerning thermal systems are their economical and environmental impacts. These entities are generally, at present, assessed on the basis of operation performances of newly installed/designed systems, during an assumed lifetime period. While this is the common way of perceiving thermal systems, performance-over-time will change as an effect of degradation, and not solely of different operation scenarios. How and to what extent is the question that needs assessing in order to evaluate if these changes will jeopardise the intended system performance requirement, hence s
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23

RIZZA, GIOVANNI. "Modelling of the powder sintering process and relative thermal conductivity variation during the electron beam powder bed fusion (PBF-EB)." Doctoral thesis, Politecnico di Torino, 2023. https://hdl.handle.net/11583/2976601.

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24

Schänzel, Lisa-Marie [Verfasser], and Christian [Akademischer Betreuer] Miehe. "Phase field modeling of fracture in rubbery and glassy polymers at finite thermo-viscoelastic deformations / Lisa-Marie Schänzel. Betreuer: Christian Miehe." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2015. http://d-nb.info/1069107409/34.

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25

Chang, Xuyang. "Mesure et modélisation multiéchelle du comportement thermomécanique des alliages à mémoire de forme sous sollicitation mécanique multiaxiale." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASN009.

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Depuis leur découverte, les alliages à mémoire de forme (AMF) one connu un développement croissant de leur applications industrielles (e.g implants médicaux, aérospatial) en relation avec leur propriétés mécaniques remarquables(effet mémoire et pseudo-élasticité). La transformation martensitique est au coeur de ces propriétés, ce type de transformation couplés (les alliages à mémoire de forme magnétiques font figure d'exception puisque pour ces alliages, le chargement magnétique est une troisième source de transformation ; ils ne seront pas traités dans ce mémoire). Un des obstacles majeurs à
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26

Grozdek, Marino. "Load Shifting and Storage of Cooling Energy through Ice Bank or Ice Slurry Systems modelling and experimental analysis /." Doctoral thesis, Stockholm : Skolan för industriell teknik och management, Kungliga Tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-11119.

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27

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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28

Mantiloni, Lorenzo. "Modelling displacement and stress fields in hydrothermal regions: the case of a thermo-poro-elastic inclusion in a poro-elastic half-space." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/18151/.

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Le regioni idrotermali sono interessate da una grande varietà di fenomeni naturali, tra cui episodi di rigonfiamento e subsidenza del suolo. Tra di esse, le caldere consentono di studiare le interazioni tra i processi magmatici e le dinamiche dei fluidi di cui sono imbevute le rocce porose nella crosta superficiale. Un'area idrotermale soggetta a instabilità periodiche è la caldera dei Campi Flegrei, nell'Italia meridionale. Una delle crisi più recenti, oggetto di numerosi studi e ricerche, ha avuto luogo nel biennio 1982-84. La tesi si propone di sviluppare un modello di sorgente deformativ
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29

Gnanachelvam, Sayilacksha. "Fire and energy performance of cold-formed steel frame wall systems." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/201471/1/Sayilacksha_Gnanachelvam_Thesis.pdf.

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This research investigated the fire and energy performance of cold-formed light-gauge steel-framed (LSF) wall configurations and proposed suitable methods to improve their combined fire and energy performance through the incorporation of (1) appropriate fire-resistive and energy-efficient building materials and (2) modifications to the arrangement or configurations of walls. This research has advanced the current knowledge of both fire and energy performance of LSF walls, paving the way for the development and use of alternative materials and LSF wall configurations.
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30

Duine, Gert-Jan. "Caractérisation des vents de vallée en conditions stables à partir de la campagne de mesures KASCADE et de simulations WRF à méso-échelle." Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30258/document.

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Анотація:
Cette thèse est dédiée à la caractérisation des vents descendants de vallée en terrain complexe d'orographie modérée à moyenne latitude, dans le contexte de la réglementation des rejets atmosphériques de Cadarache. Cadarache est un des centres de recherche du "Commissariat à l'énergie atomique et aux énergies alternatives" (CEA), installé dans une petite vallée (CV) confluente à la vallée de la Durance (DV). Ces deux vallées se distinguent par leur taille, et sont le siège d'écoulements aux caractéristiques différentes en stratification stable. Un forçage synoptique faible associé à un ciel dé
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31

Azemar, Nathan. "Μοdélisatiοn des tοxicités οptiques induites par radiοthérapie avec faisceaux de prοtοns". Electronic Thesis or Diss., Normandie, 2024. https://theses.hal.science/tel-04947852.

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Анотація:
La protonthérapie, grâce à sa capacité à délivrer des doses élevées aux tumeurs tout en épargnant les tissus sains, est une option thérapeutique privilégiée pour traiter des localisations proches des structures optiques. Cependant, les rayonnements peuvent endommager les voies visuelles et causer des déficits visuels sévères. Cette thèse vise à modéliser les toxicités optiques induites par la protonthérapie chez les patients traités pour des tumeurs de la tête et du cou. Le travail repose sur l’analyse de données dosimétriques et paracliniques collectées auprès de 223 patients traités par prot
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32

Matta, Majd Mayyasi. "Modeling the Martian ionosphere." Thesis, 2013. https://hdl.handle.net/2144/14238.

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The accessibility of the Martian atmosphere to spacecraft provides an opportunity to study an ionosphere that differs from our own. Yet, despite the half century of measurements made at Mars, the current state of the neutral atmosphere and its embedded plasma (ionosphere) remains largely uncharacterized. In situ measurements of the neutral and ionized constituents versus height exist only from the two Viking Landers from the 1970s. Subsequent satellite and remote sensing data offer sparse global coverage of the ionosphere. Thermal characteristics of the plasma environment are not well understo
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33

(7038164), Gayathri Shivkumar. "Coupled plasma, fluid and thermal modeling of low-pressure and microscale gas discharges." Thesis, 2019.

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<p>Large scale and cost-efficient synthesis of carbon nanostructured materials has garnered tremendous interest over the last decade owing to their plethora of engineering and bio-science applications. One promising method is roll-to-roll radio frequency chemical vapor deposition and this work presents a computational investigation of the capacitively coupled radio frequency plasma in such a system. The system operates at moderate pressures (less than 30 mbar) with an 80 kHz square wave voltage input. The computational model aids the understanding of plasma properties and α-γ transition parame
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34

Chi-YiChuang and 莊其毅. "Numerical Modeling of Thermal Field and Phase Transformations of Ti-6Al-4V during Laser Surface Modification Process." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/8cxj3g.

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碩士<br>國立成功大學<br>材料科學及工程學系<br>104<br>Laser surface modification is a technique that treats the materials locally to change the material properties. Complex thermal histories are induced at different sites during the laser surface modification process because of the various laser parameters and scanning paths. Diverse thermal histories would lead to different phase transformations that finally decide the microstructure and material properties. In this study, a finite element model and a mathematical model were built and validated to provide reliable temperatures as a function of time and locatio
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Sengupta, Joydeep. "Mathematical modeling of the evolution of thermal field during start-up phase of the direct chill casting process for AA5182 sheet ingots." Thesis, 2002. http://hdl.handle.net/2429/14896.

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The control of the thermal cooling conditions at the start-up phase of the Direct Chill (DC) casting process for aluminum sheet ingots is difficult, and is critical from the standpoint of defect formation. Firstly, boiling water heat transfer governs the secondary cooling experienced by the ingot surfaces as they emerge from the mould. This results in varying rates of heat transfer from the ingot faces as the surface temperature of the ingot changes with time during the start-up phase. Moreover, if the ingot surface temperature at locations below the point of water impingement is high en
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Saha, Dipankar. "Atomistic Study of Carrier Transmission in Hetero-phase MoS2 Structures." Thesis, 2017. https://etd.iisc.ac.in/handle/2005/3622.

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In recent years, the use of first-principles based atomistic modeling technique has become extremely popular to gain better insights on the various locally modulated electronic properties of nano materials and structures. Atomistic modeling offers the benefit of predicting crystal structures, visualizing orbital distribution and electron density, as well as understanding material properties which are hard to access experimentally. The single layer MoS2 has emerged as a suitable choice for the next generation nano devices, owing to its distinctive electrical, optical and mechanical properties
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Saha, Dipankar. "Atomistic Study of Carrier Transmission in Hetero-phase MoS2 Structures." Thesis, 2017. http://etd.iisc.ernet.in/2005/3622.

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In recent years, the use of first-principles based atomistic modeling technique has become extremely popular to gain better insights on the various locally modulated electronic properties of nano materials and structures. Atomistic modeling offers the benefit of predicting crystal structures, visualizing orbital distribution and electron density, as well as understanding material properties which are hard to access experimentally. The single layer MoS2 has emerged as a suitable choice for the next generation nano devices, owing to its distinctive electrical, optical and mechanical properties
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黃清白. "Low-reynolds-nember two-equation turbulence modeling for dynamic and thermal fields." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/29895732308139002381.

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Petrou, Zacharias. "Thermo-electro-mechanical behavior of ferroelectric nanodots." 2013. http://hdl.handle.net/2152/21783.

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The relatively recent discovery of the giant electrocaloric effect in ferroelectric ceramics may lead to new solid state cooling technologies that are energy efficient, reliable, portable, and environmentally friendly. This phenomenon, along with many other novel field-coupled properties of ferroelectrics, such as piezoelectricity, pyroelectricity, the electro-optic effect, phase changes, and polarization switching, make these materials useful for a wide range of technological applications including sensors, ultrasound, infrared cameras, sonar, diesel engine fuel injectors, ferroelectric rando
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40

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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(7451486), Gabriella Mendes Candido De Oliveira. "Modeling Microbial Inactivation Subjected to Nonisothermal and Non-thermal Food Processing Technologies." Thesis, 2019.

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<p>Modeling microbial inactivation has a great influence on the optimization, control and design of food processes. In the area of food safety, modeling is a valuable tool for characterizing survival curves and for supporting food safety decisions. The modeling of microbial behavior is based on the premise that the response of the microbial population to the environment factors is reproducible. And that from the past, it is possible to predict how these microorganisms would respond in other similar environments. Thus, the use of mathematical models has become an attractive and relevant tool in
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Becker, Jens Karl. "The emplacement of the Chinamora Batholith (Zimbabwe) inferred from field observations, magnetic- and microfabrics." Doctoral thesis, 2000. http://hdl.handle.net/11858/00-1735-0000-0006-B35F-B.

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Gaspar, Ana Pimentel Torres. "Contribution to control uncertainties in numerical modelling of dam performances: an application to an RCC dam." Doctoral thesis, 2014. http://hdl.handle.net/1822/35837.

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Tese de doutoramento em "Civil Engineering" (ramo do conhecimento em "Geotechnics")<br>The use of fully probabilistic approaches to account for uncertainties within dam engineering is a recently emerging field on which studies have been mostly done concerning the safety evaluation of dams under service. This thesis arises within this framework as a contribution on moving the process of risk analysis of dams beyond empirical knowledge, applying probabilistic tools on the numerical modelling of a roller compacted concrete (RCC) dam during its construction phase. The work developed here aim
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