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Dissertations / Theses on the topic 'Gas Solutions'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Mc, Laughlin Declan T. "Gas entrainment into viscous polymer solutions." Thesis, Queen's University Belfast, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.252316.

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2

Briheim, Ludvig, and Dennis Ståhl. "Researching and Developing Universal Gas Purging Solutions." Thesis, KTH, Maskinkonstruktion (Avd.), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-276080.

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In the welding of more sensitive metals such as stainless steel, titanium and some specific nickel alloys, the presence and application of a protective gas is essential. Without the use of a nonreactive shielding gas, defects occur in or adjacent to the weld joint, which vary from light discoloration of the weld bead to the direct onset and propagation of cracks. The supply of shielding gas is usually via the welding tool. Unfortunately, when it comes to welding pipes, the problem arises when the root bead comes into contact with the oxygen present within the pipe. Since the shielding gas supp

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3

Kalorazi, Bahman Tohidi. "Gas hydrate equilibria in the presence of electrolyte solutions." Thesis, Heriot-Watt University, 1995. http://hdl.handle.net/10399/1183.

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4

Shefter, Michael G. 1970. "Never breaking quasi-periodic solutions of weakly nonlinear gas dynamics." Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/43936.

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5

Yang, Limei. "Pulsed sonolysis of surfactants in aqueous solutions." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1163708736.

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6

Morocco-Clarke, Susan Ayodele. "Improving environmental protection within the Nigerian oil and gas industry : long term national solutions, short term international solutions?" Thesis, University of Aberdeen, 2012. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=186680.

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This thesis carries out a comparative analysis between the modes of operation adopted in the oil and gas industries of Nigeria and developed countries (with an emphasis on the UK), examining in the process, the existing and persistent problem of pollution which has plagued the Nigerian State and gone virtually unchecked for over five decades, and dealing with the lacunae in the law currently in place in Nigeria. This analysis is carried out to ascertain the possibility of improving environmental protection in Nigeria. A course is charted through the history and development of the Nigerian oil

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7

Phillipson, Simon Lee. "A mesoscopic experiment in dilute '3He-'4He solutions at millikelvin temperatures." Thesis, Lancaster University, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.286993.

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8

Binli, Ozmen. "Overview Of Solutions To Prevent Liquid Loading Problems In Gas Wells." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12611560/index.pdf.

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Every gas well ceases producing as reservoir pressure depletes. The usual liquid presence in the reservoir can cause further problems by accumulating in the wellbore and reducing production even more. There are a number of options in well completion to prevent liquid loading even before it becomes a problem. Tubing size and perforation interval optimization are the two most common methods. Although completion optimization will prevent liquid accumulation in the wellbore for a certain time, eventually as the reservoir pressure decreases more, the well will start loading. As liquid loading occur

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9

Woiski, Emanuel Rocha. "Solutions of the kinetic coagulation equation and predictions for gas-particle flow." Thesis, Imperial College London, 1988. http://hdl.handle.net/10044/1/47310.

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10

Park, Chul Bum. "The role of polymer/gas solutions in continuous processing of microcellular polymers." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/12337.

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11

Walus, Wlodzimierz Ignacy. "Stationary solutions of abstract kinetic equations." Diss., Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/53613.

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The abstract kinetic equation Tψ’=-Aψ is studied with partial range boundary conditions in two geometries, in the half space x≥0 and on a finite interval [0, r]. T and A are abstract self-adjoint operators in a complex Hilbert space. In the case of the half space problem it is assumed that T is a (possibly) unbounded injection and A is a positive compact perturbation of the identity satisfying a regularity condition, while in the case of slab geometry T is a bounded injection and A is a bounded Fredholm operator with a finite dimensional negative part. Existence and uniqueness theory is devel

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12

Gong, Jian, and 龚剑. "Multiple solutions of smoke flow in building fires." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45143456.

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13

Aziz, Saduman. "Perfect Gas Navier-stokes Solutions Of Hypersonic Boundary Layer And Compression Corner Flows." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606661/index.pdf.

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The purpose of this thesis is to perform numerical solutions of hypersonic, high temperature, perfect gas flows over various geometries. Three dimensional, thin layer, compressible, Navier-Stokes equations are solved. An upwind finite difference approach with Lower Upper-Alternating Direction Implicit (LU-ADI) decomposition is used. Solutions of laminar, hypersonic, high temperature, perfect gas flows over flat plate and compression corners (qw=5&deg<br>, 10&deg<br>, 14&deg<br>, 15&deg<br>, 16&deg<br>, 18&deg<br>and 24&deg<br>) with eight different free-stream and wall conditions are presente

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14

Buckingham, M. R. "Studies of energy transfer in liquid argon solutions and in the gas phase." Thesis, University of Oxford, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.355718.

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15

Hilton, Anne Marie. "The formation and growth of COâ†2 gas bubbles from supersaturated aqueous solutions." Thesis, University of Nottingham, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334502.

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16

Breckel, Alex Cade. "Regulating electricity and natural gas in Peru : solutions for a sustainable energy sector." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90029.

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Thesis: S.M. in Technology and Policy, Massachusetts Institute of Technology, Engineering Systems Division, Technology and Policy Program, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 57-59).<br>Peru is one of the fastest growing countries in Latin America, thanks in part to industry fueled by generous endowments of hydro power capacity and natural gas reserves. However, investment in electricity generation capacity has not kept pace with the rapid increase in demand and threatens to stymie future economic growth. A flawed regulatory environment

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17

Böhme, Dimo. "EU-Russia energy relations: What chance for solutions? : A focus on the natural gas sector." Universität Potsdam, 2013. http://opus.kobv.de/ubp/volltexte/2014/6302/.

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Public debate about energy relations between the EU and Russia is distorted. These distortions present considerable obstacles to the development of true partnership. At the core of the conflict is a struggle for resource rents between energy producing, energy consuming and transit countries. Supposed secondary aspects, however, are also of great importance. They comprise of geopolitics, market access, economic development and state sovereignty. The European Union, having engaged in energy market liberalisation, faces a widening gap between declining domestic resources and continuously growing

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18

Böhme, Dimo. "EU-Russia energy relations: What chance for solutions? : A focus on the natural gas sector." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2011/5021/.

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Public debate about energy relations between the EU and Russia is distorted. These distortions present considerable obstacles to the development of true partnership. At the core of the conflict is a struggle for resource rents between energy producing, energy consuming and transit countries. Supposed secondary aspects, however, are also of great importance. They comprise of geopolitics, market access, economic development and state sovereignty. The European Union, having engaged in energy market liberalisation, faces a widening gap between declining domestic resources and continuously growing

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19

Parmar, Amardeep. "Nonlinear thermal diffusion in binary boundary layers : existence and stability of stationary solutions." Thesis, Glasgow Caledonian University, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.309537.

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20

Cross, A. W. "Adsorption and ion binding studies at the gas-liquid interface of soluble surfactant solutions." Thesis, Liverpool John Moores University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375105.

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21

Darragh, Brendan. "Microporous membranes as gas/liquid phase contactors for the use in aggressive colloidal solutions." Thesis, University of Bath, 2007. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437450.

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22

James, Ronald Arthur. "Onsager Heat of Transport at the Liquid-Vapour Interface of Glycerol-Water Solutions." Thesis, University of Canterbury. Chemistry, 2007. http://hdl.handle.net/10092/1361.

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The Onsager heat of transport, Q*, has been measured for water vapour above glycerol-water solutions (75 % to 94.5 % glycerol) over a temperature range of -46 to -32 ℃. For solutions of concentrations 80 % and above, Q* varied from 5.41 kJ mol-1 ± 0.97 to 17.37 kJ mol-1 ± 2.61, consistent with previous results for aniline and n-heptanol. The dissociation of glycerol-water complexes was not rate determining, as was the case for sulfuric acid-water solutions, and therefore the glycerol-water system is a better two component system analog for comparison with the CO2-water system than the sulfuri

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23

Ilgaz, Murat. "Gas-kinetic Methods For 3-d Inviscid And Viscous Flow Solutions On Unstructured/hybrid Grids." Phd thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608241/index.pdf.

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In this thesis, gas-kinetic methods for inviscid and viscous flow simulations are developed. Initially, the finite volume gas-kinetic methods are investigated for 1-D flows as a preliminary study and are discussed in detail from theoretical and numerical points of view. The preliminary results show that the gas-kinetic methods do not produce any unphysical flow phenomena. Especially the Gas-Kinetic BGK method, which takes into account the particle collisions, predicts compressible flows accurately. The Gas-Kinetic BGK method is then extended for the solution of 2-D and 3-D inviscid and viscous

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24

Gupta, Ankur Kumar. "Measurement of Henry's constants of volatile organic compounds in aqueous solutions using headspace gas chromatography." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/11209.

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25

Ladin, Dmitry. "Study of the rheological properties of polymer/gas solutions based on a foam extrusion system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0017/MQ49787.pdf.

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26

Kakpovbia, A. E. "Kinetics of the oxidative absorption of H2Ì²S from gas streams by Iron chelate solutions." Thesis, University of Manchester, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380598.

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27

Dalal, Abdulsalam Elmabruk Daw. "Shadow Wave Solutions for Some Balance Law Systems." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104976&source=NDLTD&language=en.

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In the first part, the pressureless gas dynamic system with source (body force) is examined and solved by using Shadow Waves. The source represents gravity and Shadow Wave solution (containing the delta function) shows acceleration (contrary to shocks, for example). In the second part, one will nd numerical calculations that conrms the above results.<br>Rad je posvecen analizi modela gasa bez pritiska uz dodatak izvora. Model je resen koriscenjem senka talasa. U ovom slucaju, izvor predstavlja uticaj gravitacije na cestice u modelu. Za razliku od udarnih talasa, talasi senke koje sadrze delta

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28

Geißler, Björn [Verfasser]. "Towards Globally Optimal Solutions for MINLPs by Discretization Techniques with Applications in Gas Network Optimization / Björn Geißler." München : Verlag Dr. Hut, 2011. http://d-nb.info/1018981551/34.

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29

Böhme, Dimo [Verfasser]. "EU-Russia energy relations: what chance for solutions? : a focus on the natural gas sector/ Dimo Böhme." Potsdam : Univ. Press, 2010. http://d-nb.info/1014245966/34.

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30

Yan, Zhiqing. "Theoretical and Experimental Studies of the Lithiation of Cyclic Vinyl Ethers in Gas Phase and Ethereal Solutions." Miami University / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=miami1091024241.

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31

Byström-Troyan, Filipp. "Heat and fluid control solutions for deep space CubeSat CGPS." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-303116.

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This thesis is on the subject of how propellant heating considerations affect the design of a CubeSat cold gas propulsion system. Computer simulation tools are used to analyse heat flow through the system, as well as the fluid flow and phase change of butane. The heating performance is presented for different operational states and different designs. Finally, an optimal system design is suggested. The propulsion system in question is the deep space heading Hera Juventas 6DOF CGPS. The Juventas spacecraft will as part of ESA’s Hera mission be the first to perform radar measurements of an astero

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32

Saleh, Musbah Salem Muftah. "Exploring the application of total quality management in the Libyan oil and gas companies : potential, obstacles and solutions." Thesis, Durham University, 2013. http://etheses.dur.ac.uk/7375/.

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Currently, there is worldwide interest in and focus on the implementation and effectiveness of quality management initiatives in industrial organisations with the objective of enhancing effectiveness and efficiency. Total Quality Management (TQM) is a quality management model, which, as the literature over the years has shown, can have a transforming impact on an industry that is in a state of substantial structural change and facing increased competition by raising performance. Therefore, there is no doubt that TQM has received a great deal of attention from practitioners, academics and resea

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33

Wilson, Christopher Brant. "Measurement of chemical composition and pH profiles near the liquid-vapor interface of aqueous solutions using a unique confocal microscope system /." Thesis, Connect to this title online; UW restricted, 2007. http://hdl.handle.net/1773/9840.

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34

Somasundaram, Theepaharan. "Simulation studies of molecular transport across the liquid-gas interface." Thesis, Queen's University Belfast, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314223.

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35

Oladyshkin, Sergey. "Découplage de la thermodynamique et hydrodynamique et solutions asymptotiques des problèmes d'écoulement compositionnel gaz-liquide en milieux poreux." Thesis, Vandoeuvre-les-Nancy, INPL, 2006. http://www.theses.fr/2006INPL059N/document.

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Le travail actuel traite le problème de l'écoulement gaz-liquide compositionnel pour la représentation d'un puits dans des simulations de réservoir. L'objectif est de développer les rapports analytiques qui pourraient lier la pression de puits, la saturation et les concentrations de composant à leurs valeurs moyennes dans chaque zone de l'influence de puits. Nous avons montre que des N-2 équations décrivant le transport des concentrations de phase peuvent être transformées en équations ordinaires (différentiation en ce qui concerne la pression) indépendantes du temps et de l'espace examinant l

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36

Shukla, Sushumna. "Membrane distillation with porous metal hollow fibers for the concentration of thermo-sensitive solutions." Thesis, Montpellier 2, 2014. http://www.theses.fr/2014MON20215/document.

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Cette thèse présente une approche originale du procédé de distillation membranaire avec balayage gazeux pour la concentration des solutions thermosensibles (SGMD). Pour ce faire, un nouveau contacteur membranaire avec des fibres creuses métalliques a été conçu afin réaliser le procédé de distillation à basse température. La chaleur nécessaire au procédé est produite au niveau des fibres par effet Joule, plutôt qu'à partir de chaleur latente de la phase aqueuse. La génération localisée de la chaleur a comme conséquence une réduction du phénomène de polarisation de la température. Des fibres cre

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37

Predrag, Kojić. "Hidrodinamika i prenos mase u airlift reaktoru sa membranom." Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2016. http://www.cris.uns.ac.rs/record.jsf?recordId=100280&source=NDLTD&language=en.

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U okviru doktorske disertacije izvedena su eksperimentalna istraživanja osnovnih hidrodinamičkih i maseno-prenosnih karakteristika airlift reaktora sa spoljnom recirkulacijom sa ugrađenom vi&scaron;ekanalnom cevnom membranom u silaznu cev (ALSRM). ALSRM je radio na dva načina rada: bez mehurova u silaznoj cevi (način rada A) i sa mehurovima u silaznoj cevi (način rada B) u zavisnosti od nivoa tečnosti u gasnom separatoru. Ispitivani su uticaji prividne brzine gasa, povr&scaron;inskih osobina tečne faze, tipa distributora gasa i prisustva mehurova gasa u silaznoj cevi na sadržaj gasa, brzinu te

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38

Ays, Isabelle Charlotte [Verfasser], and M. [Akademischer Betreuer] Geimer. "Development of a CO2quantification method and of solutions for reducing the greenhouse gas emissions of construction machines / Isabelle Charlotte Ays ; Betreuer: M. Geimer." Karlsruhe : KIT-Bibliothek, 2020. http://d-nb.info/1205807667/34.

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39

Kikonyogo, Joseph Mary. "Similar solutions for similar problems :harmonising energy trade and investment policies and strategies in the East African community." Thesis, University of the Western Cape, 2009. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_8557_1297769148.

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<p>Sustainable Energy (oil, gas and electricity) plays an important role in advancing productive capacity and increasing economic growth and sustainable development. In order to achieve this, there must be effective trade and investment in energy. Currently, there is relatively low regional and international trade in energy in the East African Community (EAC). Local and foreign direct investment flowing into the EAC is still very low in spite of a number of measures, such as, investment protection guarantees, that have been taken to improve investment. Each of the five countries in the EAC has

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40

Kahyarian, Aria. "Mechanism and Prediction of Mild Steel Corrosion in Aqueous Solutions ContainingCarboxylic Acids, Carbon Dioxide, and Hydrogen Sulfide." Ohio University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1541154736282768.

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41

Peter, Christiane [Verfasser]. "Modelling greenhouse gas emissions and cumulative energy demand of energy crops in rotation using the Life Cycle Assessment approach : challenges and potential solutions / Christiane Peter." Gießen : Universitätsbibliothek, 2017. http://d-nb.info/1136268871/34.

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42

Saheb, Amir Hossein. "Sensing materials based on ionic liquids." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/24789.

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Thesis (Ph.D.)--Chemistry and Biochemistry, Georgia Institute of Technology, 2009.<br>Committee Chair: Janata, Jiri; Committee Member: Bunz, Uwe; Committee Member: Collard, David; Committee Member: Josowicz, Mira; Committee Member: Kohl, Paul.

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43

Sanja, Ružičić. "Dopustiva singularna rešenja sistema gasne dinamike sa nepozitivnim pritiskom." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114114&source=NDLTD&language=en.

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Karakteristika hiperboličnih sistema zakona odrržanja je da čak i u slučaju glatkog po-četnog uslova re&scaron;enja uglavnom razvijaju prekide u konačnom vremena. Zbog toga se posmatraju slaba re&scaron;enja koja dati sistem zadovoljavaju u distributivnom smislu i mogu biti čak i neograničena &scaron;to se ispoljava kroz pojavu Dirakove delta funkcije u re&scaron;enju. U ovoj disertaciji se akcenat stavlja na analizu protoka sti&scaron;ljivog neviskoznog fluida koji ne menja pravac prilikom kretanja. Protok je opisan Ojlerovim sistemom iz gasne dinamike koji se sastoji iz zakona održanja mase,

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44

SILVA, RENAN de A. "Desenvolvimento de software como ferramenta de confiabilidade para a análise da água subterrânea do IPEN." reponame:Repositório Institucional do IPEN, 2012. http://repositorio.ipen.br:8080/xmlui/handle/123456789/10127.

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Made available in DSpace on 2014-10-09T12:35:03Z (GMT). No. of bitstreams: 0<br>Made available in DSpace on 2014-10-09T14:00:41Z (GMT). No. of bitstreams: 0<br>Dissertação (Mestrado)<br>IPEN/D<br>Instituto de Pesquisas Energeticas e Nucleares - IPEN-CNEN/SP

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45

Polikarpov, Alexey. "Numerical simulation of rarefied gas flows based on the kinetic approach." Thesis, Aix-Marseille 1, 2011. http://www.theses.fr/2011AIX10088.

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Ce travail de thèse porte sur le développement de la méthode des vitesses discrètes pour la résolution numérique de équations cinétiques modèles, BGK, S modèle et ES modèle, qui représentent les différentes approximations de l’équation de Boltzmann<br>This work is devoted to the development of the numerical resolution of the kinetic model equations such as BGK, S-model, ES-model by the discrete velocity method. The different approximations of the Boltzmann equation are presented

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46

Pisarenko, Aleksey N. "Analytical Measurements and Predictions of Perchlorate Ion Concentration in Sodium Hypochlorite Solutions and Drinking Water: Kinetics of Perchlorate Ion Formation and Effects of Associated Contaminants." Oxford, Ohio : Miami University, 2009. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=miami1258154594.

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47

Eke, Samuel. "Stratégie d'évaluation de l'état des transformateurs : esquisse de solutions pour la gestion intégrée des transformateurs vieillissants." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEC013/document.

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Cette thèse de doctorat traite des méthodes d’évaluation de l’état des transformateurs de puissance à huile. Elle apporte une approche particulière de mise en oeuvre des méthodes de classification dans la fouille de données. Elle propose une stratégie qui met en oeuvre deux nouveaux indicateurs de santé de l’huile construit à partir d’un système neuro flou ANFIS (Adaptative Neuro-Fuzzy Inference System) et un classifieur ou prédicteur de défaut construit à partir des méthodes de classification supervisée, notamment le classifieur Bayésien naïf. Un organigramme simple et efficace d’évaluation d

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48

Holzammer, Christine [Verfasser], Andreas [Akademischer Betreuer] Bräuer, Andreas [Gutachter] Bräuer, and Markus [Gutachter] Richter. "Raman spectroscopic study of the effect of aqueous salt solutions on the formation and dissociation behavior of CO2 gas hydrates / Christine Holzammer ; Gutachter: Andreas Bräuer, Markus Richter ; Betreuer: Andreas Bräuer." Freiberg : Technische Universität Bergakademie Freiberg, 2020. http://d-nb.info/1220636916/34.

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49

Schallert, Bernd [Verfasser], and Günter [Akademischer Betreuer] Scheffknecht. "Leaching of fly ash particulate matter in MEA solutions and its relevance to the CO2 capture process with flue gas of coal-fired power plants / Bernd Schallert ; Betreuer: Günter Scheffknecht." Stuttgart : Universitätsbibliothek der Universität Stuttgart, 2020. http://d-nb.info/1222515490/34.

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50

Chilton, R. A. "Gas release and solution." Thesis, University of Leeds, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234082.

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