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Dissertations / Theses on the topic 'Gases Thermodynamics'

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1

Navon, Nir. "Thermodynamics of ultracold Bose and Fermi gases." Paris 6, 2011. http://www.theses.fr/2011PA066669.

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2

Marais, Charles Guillaume. "Thermodynamics and kinetics of sorption /." Link to the online version, 2008. http://hdl.handle.net/10019/1944.

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3

Tammuz, Naaman. "Thermodynamics of ultracold ³⁹K atomic Bose gases with tuneable interactions." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610760.

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4

Tuma, Juergen. "The enhancement of heat transfer to gases in longitudinal flow in tube bundles." Thesis, University of Brighton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280462.

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5

Morgener, Kai H. [Verfasser]. "Microscopy of 2D Fermi Gases: Exploring Excitations and Thermodynamics / Kai H. Morgener." München : Verlag Dr. Hut, 2015. http://d-nb.info/1067709002/34.

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6

Silva, Reginaldo Rocha da. ""Determinação da equação de estado para gases frios aprisionados"." Universidade de São Paulo, 2005. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-02052005-131607/.

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Este trabalho consiste basicamente em dois experimentos: Determinação da equação de estado de um gás frio aprisionado, e na comparação das temperaturas de uma amostra de átomos confinadas em dois tipos de armadilhas magneto-ópticas. No primeiro experimento utilizamos a generalização do conceito de pressão e volume que foram redefinidos de maneira apropriada para alcançamos uma equação de estado. Experimentalmente nossa amostra apresentou um desvio do esperado para um gás ideal, dessa forma utilizamos uma expansão virial com as novas definições de pressão e volume para investigar as interações
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7

Cho, Kyoung Youn. "Nonequilibrium thermodynamic models and applications to hydrogen plasma." Diss., Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/17907.

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8

Shiozaki, Rodrigo Figueiredo. "Quantum turbulence and thermodynamics on a trapped Bose-Einstein condensate." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/76/76131/tde-12022014-092540/.

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In this thesis we have basically studied two aspects of BoseEinstein condensation (BEC) in trapped dilute gases: (i) superfluidity with the possible onset of quantum turbulence (QT), and (ii) nonuniformity, which suggests the definition of new variables in order to build a global thermodynamic description. Both analyses were performed in a 87Rb BEC magnetically trapped in a QuadrupoleIoffe configuration (QUIC) trap. Concerning the first item, vortices and QT were generated by applying an oscillatory excitation formed by a quadrupole magnetic field superimposed onto the QUIC trapping potential.
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9

Hunt, Lisa Marie. "Gas dissolution phenomena in crude oil production." Thesis, University of Southampton, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361547.

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10

Vorberg, Daniel. "Generalized Bose-Einstein Condensation in Driven-dissipative Quantum Gases." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-234044.

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Bose-Einstein condensation is a collective quantum phenomenon where a macroscopic number of bosons occupies the lowest quantum state. For fixed temperature, bosons condense above a critical particle density. This phenomenon is a consequence of the Bose-Einstein distribution which dictates that excited states can host only a finite number of particles so that all remaining particles must form a condensate in the ground state. This reasoning applies to thermal equilibrium. We investigate the fate of Bose condensation in nonisolated systems of noninteracting Bose gases driven far away from equili
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11

Ota, Miki. "Sound propagation in dilute Bose gases." Doctoral thesis, Università degli studi di Trento, 2020. http://hdl.handle.net/11572/250493.

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In this doctoral thesis, we theoretically investigate the propagation of sound waves in dilute Bose gases, in both the collisionless and hydrodynamic regimes. The study of sound wave is a topic of high relevance for the understanding of dynamical properties of any fluid, classical or quantum, and further provides insightful information about the equation of state of the system. In our work, we focus in particular on the two-dimensional (2D) Bose gas, in which the sound wave is predicted to give useful information about the nature of the superfluid phase transition. Recently, experimental measu
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12

Frank, Bernhard [Verfasser], Wilhelm [Akademischer Betreuer] Zwerger, Matthias [Gutachter] Puunk, and Wilhelm [Gutachter] Zwerger. "Thermodynamics and Transport in Fermi Gases near Unitarity / Bernhard Frank ; Gutachter: Matthias Puunk, Wilhelm Zwerger ; Betreuer: Wilhelm Zwerger." München : Universitätsbibliothek der TU München, 2019. http://d-nb.info/117867231X/34.

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13

Lebelo, Ramoshweu Solomon. "Analysis of greenhouse gas emission from reactive materials and its thermodynamics." Thesis, Cape Peninsula University of Technology, 2013. http://hdl.handle.net/20.500.11838/1302.

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Thesis (DTech(Mechanical Engineering))--Cape Peninsula University of Technology, 2013<br>The environment is polluted by many gases of which carbon dioxide is one of them and unfortunately during the emission of carbon dioxide, oxygen, which is very important for keeping all species alive, is depleted. Increased industrial activities led to more emission of carbon dioxide and ultimately global warming arose as a result of the greenhouse effect. Global warming has resulted with high temperatures and carbon dioxide production in the atmosphere and it was necessary to come up with mathematical mod
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14

Frapolli, Camille. "Thermodynamics and magnetism of antiferromagnetic spinor Bose-Einstein condensates." Thesis, Paris Sciences et Lettres (ComUE), 2017. http://www.theses.fr/2017PSLEE006/document.

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Dans ce manuscrit, nous présentons une étude expérimentale d'un gaz de Bose de spin 1 avec des interactions antiferromagnétiques avec des atomes de sodium ultra-froids dans l'état hyperfin F=1. Les trois composantes Zeeman sont piégées simultanément dans des pièges dipolaires optiques. Nous obtenons un condensat de Bose-Einstein spineur par refroidissement évaporatif et nous étudions ses propriétés magnétiques. Il y a deux types d’interactions dans le système: des interactions de contact qui ne changent pas les populations des composantes Zeeman et des interactions d'échange de spin qui les mo
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15

Naylor, Bruno. "Quantum gases of Chromium : thermodynamics and magnetic properties of a Bose-Einstein condensate and production of a Fermi sea." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCD036/document.

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Le manuscrit présente des expériences réalisées avec des gaz quantiques de Chrome, un élément présentant un large spin électronique S=3 et des interactions dipolaires non négligeables. Nous avons produit un nouveau gaz quantique, une mer de Fermi avec l'isotope ⁵³Cr, en optimisant la co-évaporation avec l'isotope bosonique, contenant jusqu’à 1000 atomes a T=TF= 0.66± 0.08. Nous avons obtenu de nouveaux résultats sur la thermodynamique d'un condensat de Bose Einstein (CBE) avec degré de liberté de spin. En refroidissant rapidement un gaz thermique multi-composante, nous observons que la dynamiq
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16

Oliveira, Diego Sales de. "Aproximação tempo de relaxação: Modelos alternativos em teoria cinética clássica." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/43/43134/tde-20102014-161549/.

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As possíveis soluções da equação integro-diferencial de Boltzmann constituem uma importante ferramenta para o estudo de gases e plasmas. No entanto, suas soluções analíticas são difíceis de serem encontradas. Uma abordagem bastante utilizada na literatura para obter soluções aproximadas da equação de Boltzmann é através de hipóteses que simplificam a forma da integral de colisão. Nesta dissertação, discutimos dois modelos colisionais alternativos que generalizam o método originalmente proposto por Bhatnagar, Gross e Krook, usualmente referido na literatura como aproximação BGK. O primeiro dele
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17

Gustavsson, Joel. "Reactions in the Lower Part of the Blast Furnace with Focus on Silicon." Doctoral thesis, Stockholm, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-59.

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18

Congedo, Pietro Marco. "Contributions to the reliability of numerical simulations in fluid mechanics. Application to the flow simulation of thermodynamically complex gases." Habilitation à diriger des recherches, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00940088.

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At the interface of physics, mathematics, and computer science, Uncertainty Quanti cation (UQ) aims at developing a more rigorous framework and more reliable methods to characterize the impact of uncertainties on the prediction of Quantities Of Interest (QOI). Despite signi cant improvements done in the last years in UQ methods for Fluid Mechanics, there is nonetheless a long way to go before there can be talk of an accurate prediction when considering all the numerous sources of uncertainties of the physical problem (boundary conditions, physical models, geometric tolerances, etc), in particu
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19

Goulko, Olga. "Thermodynamic and hydrodynamic behaviour of interacting Fermi gases." Thesis, University of Cambridge, 2012. https://www.repository.cam.ac.uk/handle/1810/241497.

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Fermionic matter is ubiquitous in nature, from the electrons in metals and semiconductors or the neutrons in the inner crust of neutron stars, to gases of fermionic atoms, like 40K or 6Li that can be created and studied under laboratory conditions. It is especially interesting to study these systems at very low temperatures, where we enter the world of quantum mechanical phenomena. Due to the Fermi-Dirac statistics, a dilute system of spin-polarised fermions exhibits no interactions and can be viewed as an ideal Fermi gas. However, interactions play a crucial role for fermions of several spin
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20

Bowman, Sherrie S. "Atomic and Molecular Oxygen Kinetics Involved in Low Temperature Repetitively Pulsed Nonequilibrium Plasmas." The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1370365358.

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21

Estrada-Alexanders, Andres Francisco. "Thermodynamic properties of gases from measurements of the speed of sound." Thesis, Imperial College London, 1996. http://hdl.handle.net/10044/1/8048.

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22

Oliveira, João Fávaro de. "Thermodynamic modelling and simulation of Municipal solid waste gasification." reponame:Repositório Institucional da UFPR, 2016. http://hdl.handle.net/1884/44269.

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Orientador : Prof. Dr. Marcos Lúcio Corazza<br>Coorientador : Prof. Dr. Fernando A. P. Voll<br>Dissertação (mestrado) - Universidade Federal do Paraná, Setor de Tecnologia, Programa de Pós-Graduação em Engenharia Química. Defesa: Curitiba, 26/02/2016<br>Inclui referências : f.101-105<br>Resumo: O manejo, gerenciamento e a destinação final da crescente produção de resíduos sólidos urbanos (RSU) não é tarefa simples e vem sendo foco de intensa pesquisa. Organizações mundiais, governos federal, estaduais e municipais demandam soluções tecnológicas que possam os permitir lidar com o desafio da cor
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23

Qin, Tongran. "Buoyancy-thermocapillary convection of volatile fluids in confined and sealed geometries." Diss., Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/54939.

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Convection in a layer of fluid with a free surface due to a combination of thermocapillary stresses and buoyancy is a classic problem of fluid mechanics. It has attracted increasing attentions recently due to its relevance for two-phase cooling. Many of the modern thermal management technologies exploit the large latent heats associated with phase change at the interface of volatile liquids, allowing compact devices to handle very high heat fluxes. To enhance phase change, such cooling devices usually employ a sealed cavity from which almost all noncondensable gases, such as air, have been eva
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24

El, Messoudi Abdelmalek. "Modélisation des détonations thermonucléaires en plasmas stellaires dégénérés: applications aux supernovae de types Ia." Doctoral thesis, Universite Libre de Bruxelles, 2008. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210461.

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Plusieurs évènements astrophysiques comme les novae, les supernovae de type Ia (SNeIa) et les sursauts X sont le résultat d'une combustion thermonucléaire explosive dans un plasma stellaire. Les supernovae comptent parmi les objets astrophysiques les plus fascinants tant sur le plan théorique que sur celui des observations. Au moment de l'explosion, la luminosité d'une supernova peut égaler celle de l'intégralité des autres étoiles de la galaxie. On admet aujourd’hui que les SNeIa résultent de l'explosion thermonucléaire d'une étoile naine blanche, un objet dense et compact composé de carbone
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25

Cheik, Njifon Ibrahim. "Modélisation des modifications structurales, électroniques et thermodynamiques induites par les défauts ponctuels dans les oxydes mixtes à base d'actinides (U,Pu)O2." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0356/document.

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(U,Pu)O2 (aussi appelé MOX) est actuellement utilisé comme combustible dans les réacteurs nucléaires à eau pressurisée (REP) avec une teneur massique en Pu d’environ 10 %. Il est également envisagé comme combustible de référence pour les réacteurs à neutrons rapides à caloporteur sodium, avec une teneur massique en Pu d’environ 25 %. En conditions opérationnelles, (U,Pu)O2 est soumis à des réactions de fission qui génèrent une grande quantité de défauts et de produits de fission. Par migration, ces défauts et produits de fission gazeux peuvent s'agréger en nano-cavités, dislocations et bulles
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26

JUNIOR, CARLOS THOMAZ GUIMARAES LOPES. "THERMODYNAMIC COMPARISON BETWEEN A TRADITIONAL RANKINE CYCLE WITH AN INNOVATIVE RANKINE CYCLE USING RESIDUAL GASES FROM THE SIDERURGIC PROCESS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2007. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=11329@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>O presente trabalho realiza uma comparação entre o ciclo Rankine tradicional e uma nova proposta de ciclo Rankine para uma planta de cogeração na indústria siderúrgica. O ciclo inovador é caracterizado por um sistema de regeneração por injeção direta de vapor seguida de bombeamento bifásico substituindo o uso de pré-aquecedores como no ciclo tradicional. Para a simulação dos ciclos de potência é empregado o Software Gate Cycle. São simuladas e estudadas diversas alternativas de configuração para a aplicação da nova tecnologia. A melh
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27

Bigalke, Nikolaus [Verfasser]. "Constraining Hydrate-Mediated Transfer of the Greenhouse Gases CO2 and CH4 to the Ocean at Controlled Thermodynamic and Hydrodynamic Forcing / Nikolaus Karl Bigalke." Kiel : Universitätsbibliothek Kiel, 2008. http://d-nb.info/1019809841/34.

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28

Brown, Ashlie M. "Improved thermal energy utilization through coupled and cascaded cooling cycles." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/31645.

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Thesis (M. S.)--Mechanical Engineering, Georgia Institute of Technology, 2010.<br>Committee Chair: Dr. Srinivas Garimella; Committee Member: Dr. Samuel Graham; Committee Member: Dr. Sheldon Jeter. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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29

Benyo, Theresa L. "Analytical and Computational Investigations of a Magnetohydrodynamic (MHD) Energy-Bypass System for Supersonic Turbojet Engines to Enable Hypersonic Flight." Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1369153719.

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30

Symerský, Tomáš. "Senzor pro měření průtoku." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219280.

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This diploma thesis is divided into two parts - theoretical and practical. In its first, theoretical part, deals with the theory of fluid and gas flow, heat transfer and diversification of sensors for flow measurement working on the electrical principle. It also deals with thermodynamic principle, which can be used for measuring very small flow and low-temperature ceramics that is used to implement microcanals for sensing very low flows. The practical part of the thesis deals with the very simulation of the entire structure in the program “COMSOL Multiphysics” - both in 2D and 3D views. Then t
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31

Magin, Thierry. "A model for inductive plasma wind tunnels." Doctoral thesis, Universite Libre de Bruxelles, 2004. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/211179.

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A numerical model for inductive plasma wind tunnels is developed. This model provides the flow conditions at the edge of a boundary layer in front of a thermal protection material placed in the plasma jet stream at the outlet of an inductive torch. The governing equations for the hydrodynamic field are derided from the kinetic theory. The electromagnetic field is deduced from the Maxwell equations. The transport properties of partially ionized and unmagnetized plasma in weak thermal nonequilibrium are derived from the Boltzmann equation. A kinetic data base of transport collision integrals is
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32

Mahfouf, Ali. "Calcul des coefficients de transport dans des plasmas hors de l'équilibre." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22719/document.

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Les propriétés de transport à haute température dans les gaz et/ou dans les plasmas ont une importance capitale dans différents domaines, à savoir dans le domaine de technologie de coupure à arc, plasmas de coupure, de soudure ou de gravure. La connaissance des coefficients de transport est nécessaire pour toute modélisation faisant intervenir les équations hydrodynamiques. Dans le cadre de la théorie cinétique des gaz dilués, une solution approchée de l’équation intégro-différentielle de Boltzmann régissant les fonctions de distribution a été proposée par Chapman-Enskog. Les coefficients de t
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33

Mazot, Agnès. "Activité hydrothermale des volcans Kelud et Papandayan (Indonésie) et évaluation des flux de gaz carbonique." Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210971.

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Surface manifestations of hydrothermal fluids such as fumaroles and hot springs provide valuable information about the level of activity of a volcano during quiescent period. Geochemical study of gas and spring waters is useful to elaborate geochemical model for magmatic-hydrothermal system. Furthermore, temporal geochemical monitoring of these fluids with time provides a better understanding in processes occurring inside the volcano and can be useful to detect any changes in the activity of the magmatic-hydrothermal system. This thesis investigates two hydrothermal systems at Kelud and Papand
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34

Vorberg, Daniel. "Generalized Bose-Einstein Condensation in Driven-dissipative Quantum Gases." Doctoral thesis, 2017. https://tud.qucosa.de/id/qucosa%3A30857.

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Bose-Einstein condensation is a collective quantum phenomenon where a macroscopic number of bosons occupies the lowest quantum state. For fixed temperature, bosons condense above a critical particle density. This phenomenon is a consequence of the Bose-Einstein distribution which dictates that excited states can host only a finite number of particles so that all remaining particles must form a condensate in the ground state. This reasoning applies to thermal equilibrium. We investigate the fate of Bose condensation in nonisolated systems of noninteracting Bose gases driven far away from equ
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35

Moskau. "Physical-chemical properties of complex natural fluids." Phd thesis, 2001. http://edocs.tu-berlin.de/diss/2001/churakov_sergey.pdf.

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36

Rana, Anirudh Singh. "Numerical simulation of rarefied gas flow in micro and vacuum devices." Thesis, 2014. http://hdl.handle.net/1828/5170.

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It is well established that non-equilibrium flows cannot properly be described by traditional hydrodynamics, namely, the Navier-Stokes-Fourier (NSF) equations. Such flows occur, for example, in micro-electro-mechanical systems (MEMS), and ultra vacuum systems, where the dimensions of the devices are comparable to the mean free path of a gas molecule. Therefore, the study of non-equilibrium effects in gas flows is extremely important. The general interest of the present study is to explore boundary value problems for moderately rarefied gas flows, with an emphasis on numerical solutio
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37

Maphutha, Selby Kwena. "Thermodynamic study of carbon nanotube production from greenhouse gases during syngas synthesis." Thesis, 2010. http://hdl.handle.net/10539/8302.

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Global warming has become a major topic for the public in recent years and many institutions and industries have been pushed to find a ‘cure’ for it. The most wildly known culprit for global warming is carbon dioxide and several methods for the treatment of this gas have been proposed. There is thermal decomposition, capturing methods and chemical decomposition. This study looks at the conversion of carbon dioxide and another greenhouse gas, methane, into carbon nanotubes and syngas (hydrogen and carbon monoxide), which is a precursor to the petroleum compounds in the Fischer-Tropsch pro
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38

Lin, Yu-Jie, and 林語潔. "A Study on Thermodynamic Equilibrium of Ambient PM2.5 Water-soluble Inorganic Ions and Precursor Gases." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/45r2fu.

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碩士<br>國立交通大學<br>環境工程系所<br>106<br>Ambient PM2.5 water-soluble inorganic ions and precursor gases at the NCTU site were measured using an online monitoring system, PPWD-PILS. In order to compare the observed data and theoretical value, the hourly data was input into a thermodynamic equilibrium model, ISORROPIA-II. In addition, for discussing the chemical composition of PM2.5, TEOM-FDMS and OC-EC analyzer were used to measure PM2.5 mass concentration and PM2.5 carbon composition, respectively. Moreover, MOUDI was used to investigate the particle size distribution of water-soluble inorganic ions.
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39

Zurbriggen, Ernesto. "Evaluación de funciones de distribución de pares en un modelo mecánico estadístico de gases basado en particiones del espacio." Bachelor's thesis, 2011. http://hdl.handle.net/11086/43.

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Tesis (Lic. en Astronomía)--Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física, 2011.<br>La estructura microscópica de un fluido en equilibrio puede ser descripta por una clase de partición del espacio en la cual a cada partícula se le asigna un volumen v. La combinación de particiones del espacio con el método de minimización de la energía de Helmholtz, permite obtener un formalismo que contiene información termodinámica y estructural del sistema. En este formalismo termo-estadístico el cálculo de la energía de interacción del fluido, requiere la implementación de la
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