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Dissertations / Theses on the topic 'Circulation'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 June 2025

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1

Burkell, James J. "Solids circulation rate measurement in a circulating fluidized bed." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26217.

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This thesis documents the investigation of three methods of determining solids fluxes in a circulating fluidized bed (CFB). An impact flowmeter used the force of the recirculating particles striking a pan which spanned the diameter of the return column to measure solids circulation rates. A modified orifice, with a conical entrance section, used the additional pressure differential resulting from solids flowing counter-currently to gas to determine solids fluxes. The third method used the velocities of particles travelling through the vertical section of an L-valve to determine solids circulat
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2

Schubert, Bastian. "Circulation Structured." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/36173.

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Circulation is the way by which people move and interact with a piece of architecture. In public buildings, such as transportation terminals, it is crucial to have a floor plan that allows easy flow of pedestrian traffic. Effective circulation in public areas such as these ensures a visitor can navigate conveniently and efficiently. Also, using circulation elements such as elevators, escalators, and staircases, optimizes the flow of individuals through a building while providing visual appeal as they can be positioned and designed creatively Within my thesis I am investigating the relation
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3

Feddersen, Falk. "Nearshore circulation /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 1999. http://wwwlib.umi.com/cr/ucsd/fullcit?p3035923.

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4

Wang, Yixiong. "Comparative planetary circulation regimes in simple general circulation models." Thesis, University of Oxford, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.669741.

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This thesis presents the studies of terrestrial planetary atmospheric circula- tion regimes using simplified GCMs with different levels of complexity. Two different versions of the simplified GCM PUMA (Portable University Model for the Atmosphere) are used — PUMA-S with Newtonian cooling scheme and PUMA-G with a semi-grey two-band radiative transfer scheme and dry convective adjustment. A series of controlled experiments are conducted by varying planetary rotation rate and imposed equator-to-pole temperature dif- ference using PUMAS-S, and by varying rotation rate, planetary obliquity, and the
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5

Nelkien, Haim. "Thermally driven circulation." Woods Hole, Mass. : Woods Hole Oceanographic Institution, 1987. http://hdl.handle.net/1912/3152.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, and (Ph. D.)--Woods Hole Oceanographic Institution, 1987.<br>Cover title. Includes bibliographical references (leaves 181-186).
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6

Nelken, Haim. "Thermally driven circulation." Thesis, Massachusetts Institute of Technology, 1987. http://hdl.handle.net/1721.1/58495.

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Thesis (Ph. D.)--Joint Program in Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), 1987.<br>Includes bibliographical references (leaves 181-186).<br>Several problems connected by the theme of thermal forcing are addressed herein. The main topic is the stratification and flow field resulting from imposing a specified heat flux on a fluid that is otherwise confined to a rigid insulating basin. In addition to the traditional eddy viscosity and diffusivity, turbulent processes are also included
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7

Dugas, Bernard. "Persistent circulation anomalies in observations and in a general circulation model." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74220.

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A comparative diagnostic study of upper-air persistent atmospheric events, as simulated by a general circulation model (GCM) and as observed, is presented. We start with an overview of the several theories that attempt to explain such phenomena. Particular emphasis is put on the model approach of Shutts (1983). We next show that the spatial distributions of persistent events is qualitatively similar in the GCM and observational data. The North-Atlantic events are extracted and a rotated empirical orthogonal function (REOF) analysis is done on the resulting data sets. The two REOF sets that are
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8

Solberg, Robert Glen. "Extracorporeal Circulation: Effect of Long-Term (24-Hour) Circulation on Blood Components." Thesis, Virginia Tech, 2010. http://hdl.handle.net/10919/32157.

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Extracorporeal circulation damages blood and causes harmful side effects such as stroke and/or systemic inflammatory response in patients. Reactions of blood components to extracorporeal circulation include complement and inflammatory reactions, coagulation and thrombogenesis, frank hemolysis, and platelet activation and adhesion to the extracorporeal circuit. Non-physiologic pressure and flow produced by blood pumps contribute to blood injury. Two pump types, roller and centrifugal, are used for maintaining flow, with various models available from different manufacturers. This study compa
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9

Li, Hai. "Bile acids enterohepatic circulation." [S.l. : Amsterdam : s.n.] ; Universiteit van Amsterdam [Host], 2005. http://dare.uva.nl/document/77982.

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10

Bean, Mark Shawn. "Modelling the thermohaline circulation." Thesis, University of Southampton, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242716.

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11

Kontovourkis, Odysseas. "Computer-generated circulation diagrams." Thesis, University of Bath, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.512302.

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The way in which computers are used is important in the theory, philosophy and practice of architecture. Architects are already using computers to construct complex three dimensional geometric models of their buildings and are beginning to analyse these models using environmental and structural software, a development which raises new questions about the role of architects and engineers. This dissertation puts forward the hypothesis that architects will at times need to be actively involved in computer programming by writing or modifying software. The hypothesis is based on the assumption that
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12

Ledain, Santiago Richard. "La circulation du cautionnement." Thesis, Evry-Val d'Essonne, 2011. http://www.theses.fr/2011EVRY0044.

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La circulation du cautionnement recouvre deux réalités que sont son transfert à titre particulier, en tant qu’accessoire d’un contrat garanti dont le bénéfice est transféré, et sa transmission, dans le cadre de la transmission universelle d’un patrimoine. Pareille circulation entre créanciers successifs de la garantie issue du cautionnement n’est pas entravée par sa nature juridique, analysée en tant qu’obligation de praestere, pas plus qu’elle ne l’est en considération des mécanismes permettant cette circulation, que sont respectivement la cession de créance et la transmission universelle de
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13

Walther, Connie. "Atmospheric Circulation in Antarctica." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-199278.

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Validation of the Regional Climate Model HIRHAM with measurements, especially from radiosondes and GPS-signal-retrieval. Analysis of synoptical structures in Antarctica and comparison of the precipitation in different phases of the Antarctic Oscillation.
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14

Iizawa, Isao. "Urban Heat Island Circulation." Kyoto University, 2009. http://hdl.handle.net/2433/123927.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(人間・環境学)<br>甲第14712号<br>人博第448号<br>新制||人||110(附属図書館)<br>20||人博||448(吉田南総合図書館)<br>UT51-2009-D424<br>京都大学大学院人間・環境学研究科環境相関研究専攻<br>(主査)准教授 酒井 敏, 教授 鎌田 浩毅, 教授 石川 尚人<br>学位規則第4条第1項該当
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15

Rider, Kelly Elizabeth. "Shelf circulation patterns off Nigeria." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/2252.

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Little has been published about the shelf circulation off the coast of Nigeria. Due to increased activity and associated incidents in the shallow waters offshore Nigeria, there is a need to more clearly define the near-shore circulation patterns. An oil spill occurred in January of 1998, the slick drifted in the opposite direction at twice the speed as was anticipated. It was believed that the heavy discharge from the Niger River Delta would have a strong influence on the near-shore circulation patterns and was the reason for this unexpected drift. This thesis investigates the river dischar
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16

Cirovic, Srdjan. "Cerebral circulation during acceleration stress." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ58910.pdf.

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17

Khan, Sofia. "Studies in posterior circulation stroke." Thesis, St George's, University of London, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.589798.

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Posterior circulation ischemic stroke accounts for a quarter of ischemic strokes. Recent studies have shown that these patients have a high early risk of further ischaemic events especially if they have 2:50% vertebrobasilar (VB) stenosis; there is paucity of data on the diagnosis and management of these patients. The gold standard technique to diagnose VB stenosis is intra-arterial angiography (IAA) which carries a risk of stroke; this can be avoided by using non-invasive imaging techniques. I systematically reviewed the literature on studies which compared the accuracy of three commonly used
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18

Jones, Richard David. "Hypoxia and the pulmonary circulation." Thesis, University of Sheffield, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301608.

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19

Barrial, Dominique. "Contrôle pénal et circulation routière." Aix-Marseille 3, 1992. http://www.theses.fr/1992AIX32026.

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Le developpement toujours croissant de l'insecurite routiere met en evidence l'inefficacite des moyens de lutte contre la delinquance routiere. D'une part le controle penal auquel on a largement eu recours n'apparait plus comme une reponse adequate. Le droit penal routier est devenu un instrument dont l'objectif, marque par une grande diversite, est de plus oriente vers la maitrise non de la delinquance routiere mais des consequences pratiques de ce phenomene criminel. D'autre part, le recours a des controles de natures diverses renforce le caractere eclate et heterogene du controle. La perte
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20

Jasmin, Jean-François. "Système endothéline et circulation pulmonaire /." [Montréal] : Université de Montréal, 2003. http://wwwlib.umi.com/cr/umontreal/fullcit?pNQ92761.

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Thèse (Ph.D.) -- Université de Montréal, 2004.<br>"Thèse présentée à la Faculté des études supérieures en vue de l'obtention du grade de PhD en Physiologie" Version électronique également disponible sur Internet.
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21

Su, Lin 1966. "A diagnostic study of the summer southern hemisphere circulation of the CCC general circulation model /." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60493.

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The medium scale planetary wave regime, consisting largely of zonal wavenumbers 5-7, frequently dominate the summer Southern Hemisphere tropospheric circulation. We perform a diagnostic study of this circulation as simulated by the Canadian Climate Centre (CCC) general circulation model (GCM). The analysis of Hovmoller diagrams, space-time and zonal wavenumber spectra shows that the CCC GCM is able to simulate the observed medium scale wave regime.<br>The zonally averaged meridional eddy heat and momentum transports and the associated baroclinic and barotropic energy conversions are also exami
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22

Saito, Ryu. "Influence of the surface on the atmospheric circulation of Mars : study with a general circulation model /." Katlenburg-Lindau : Copernicus, 2007. http://www.gbv.de/dms/bs/toc/535034385.pdf.

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23

Orr, Yishay Medical Sciences Faculty of Medicine UNSW. "Circulating neutrophil activation and recruitment during the systemic inflammatory response to cardiac surgery with extracorporeal circulation." Publisher:University of New South Wales. Medical Sciences, 2008. http://handle.unsw.edu.au/1959.4/41227.

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Circulating neutrophil activation occurs during cardiac surgery with extracorporeal circulation (ECC) and is implicated in the pathophysiology of inflammatory tissue injury and peri-operative organ dysfunction. However, neutrophil directed antiinflammatory strategies have failed to demonstrate consistent therapeutic benefit indicating that the nature and significance of peri-operative circulating neutrophil activation remains incompletely defined. In particular, conformational activation of the b2 integrin Mac-1 (CD11b/CD18), which is required for neutrophil adhesion competence and facilitatio
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24

Marlot, Grégoire Crozet Yves. "Efficacité et acceptabilité de la régulation de la congestion." Lyon : Université Lumière Lyon 2, 2002. http://theses.univ-lyon2.fr/sdx/theses/lyon2/2002/marlot_g_notice.

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25

Henn, Vincent Faure René-Michel. "Information routière et affectation du trafic : vers une modélisation floue." [s.l.] : [s.n.], 2001. http://www.univ-lille1.fr/bustl-grisemine/pdf/extheses/50386-2001-Henn.pdf.

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26

Schirmer, Clemens. "Endovascular treatment of posterior circulation aneurysms." Diss., lmu, 2003. http://nbn-resolving.de/urn:nbn:de:bvb:19-14510.

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27

Brimioulle, Serge. "Acid-base status and pulmonary circulation." Doctoral thesis, Universite Libre de Bruxelles, 1990. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/213199.

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28

Simaga, Bamodi. "Circulation pulmonaire chez l'Africain sub-saharien." Doctoral thesis, Universite Libre de Bruxelles, 2016. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/240709.

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L’adaptation de la circulation pulmonaire à l’effort se fait essentiellement par l’augmentation de sa compliance. Cette distensibilité explique la chute de la résistance vasculaire pulmonaire (RVP). La résistance et la distensibilité vasculaire pulmonaire (α) à l’effort sont corrélées à l’aptitude aérobie. Cependant ces déterminants hémodynamiques majeurs de la circulation pulmonaire à l’effort sont modifiés par des caractères génétiques liés à l’origine géographiques et à l’appartenance au sexe masculin. Les sujets masculins Africains sub-sahariens ont une circulation pulmonaire moins distens
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29

Bilyachenko, Alexey. "La circulation internationale des situations juridiques." Thesis, La Rochelle, 2016. http://www.theses.fr/2016LAROD001/document.

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La présente thèse part d’une tendance de la jurisprudence européenne, destinée à influencer la jurisprudence nationale de droit international privé, et se trouve dans le prolongement d’un grand débat doctrinal d’actualité. Il s’agit de la méthode de reconnaissance des situations juridiques, qui suppose l’abandon de la règle de conflit de lois. L’objectif est de conceptualiser cette nouvelle méthode et d’en définir le domaine et les conditions de mise en œuvre. Vu les particularités du sujet, la recherche passe nécessairement par plusieurs thèmes fondamentaux du droit international
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30

Kho, Tjioe Liang. "Dopamine and the circulation in man." Maastricht : Maastricht : Rijksuniversiteit Limburg ; University Library, Maastricht University [Host], 1987. http://arno.unimaas.nl/show.cgi?fid=5365.

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31

Ruissen, Cornelis Jan. "Fetoplacental circulation measurements, techniques and applications /." Maastricht : Maastricht : Datawyse ; University Library, Maastricht University [Host], 1990. http://arno.unimaas.nl/show.cgi?fid=5597.

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32

Brandefelt, Jenny. "Atmospheric circulation regimes and climate change." Doctoral thesis, Stockholm : Dept. of Meteorology, Stockholm University, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-530.

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33

Shrewsbury, George D. "Dynamic stall of circulation control airfoils." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/12397.

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34

De, Neeve Eileen O'Brien. "Bernard Lonergan's "Circulation analysis" and macrodynamics." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74336.

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Bernard Lonergan's economic writings have not been fully evaluated by economists although two recent papers by Burley (1989a, 1989b) show that work has begun. The purpose of this dissertation, therefore, is to situate Lonergan's (1944) economics essay, Circulation Analysis, in the history of economic thought of the period as well as to present a Lonerganian cycle model.<br>Circulation Analysis examines fundamental macrodynamic processes to explain fluctuations. It was written in the early 1940s following a period of controversy and debate that led to the current paradigms of economic dynamics.
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35

Gillett, Nathan Peter. "Climate change and the atmospheric circulation." Thesis, University of Oxford, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.393444.

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36

Jones, Matthew Stephen. "Satellite techniques for studying ocean circulation." Thesis, University College London (University of London), 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568439.

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37

Santer, B. D. "Regional validation of General Circulation Models." Thesis, University of East Anglia, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383549.

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38

Stephens, James C. "Aspects of the oceanic thermohaline circulation." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.342459.

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39

Thomas, Margot Ross. "Fetal cells in the maternal circulation." Thesis, University College London (University of London), 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.363337.

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40

Williams, David Reid. "The pulmonary circulation at high altitude." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316610.

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41

Forster, M. "Computational modelling of transonic circulation control." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3018248/.

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This Ph.D. thesis focusses upon computational fluid dynamics simulations of circulation control in transonic freestream speeds for applications to unmanned combat air vehicles. The work addresses Coanda shape designs and their effectiveness for transonic circulation control using supersonic jets, with comparisons against traditional control surfaces. Previous works have thus far only investigated transonic circulation control on elliptical sectioned wings with unrepresentatively thick trailing edges and improvements in performance made by considering elliptical Coanda devices or increasing rad
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42

Mardapitta-Hadjipandeli, Lida. "Numerical modelling of tide-induced circulation." Thesis, University of Birmingham, 1986. http://etheses.bham.ac.uk//id/eprint/4529/.

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A finite difference computational model has been enhanced and refined to simulate tide-induced circulatory flows, with special reference to eddies shed in the lee of headlands and tidal circulation and flushing in narrow entranced coastal basins. The model is of the two-dimensional depth-integrated type and includes a relatively simple "zero-equation" turbulence model. In the turbulence model particular emphasis has been placed on the representation of the free shear layer turbulence, occurring in the mixing zone of eddying flows. This component of turbulent structure has been expressed in ter
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43

Lucarini, Valerio. "Thermohaline circulation stability : a box model." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/30128.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2003.<br>Includes bibliographical references (leaves 87-97).<br>A thorough analysis of the stability of uncoupled and coupled versions of an inter-hemispheric 3-box model of Thermohaline Circulation (THC) is presented. The model consists of a northern high latitudes box, a tropical box, and a southern high latitudes box, which respectively can be thought as corresponding to the northern, tropical and southern Atlantic ocean. We study how the strength of THC changes when the system undergo
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44

Guma, Anthony C. (Anthony Christian) 1975. "Urban Relay : circulation morphology [accelerator city]." Thesis, Massachusetts Institute of Technology, 2001. http://hdl.handle.net/1721.1/8755.

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Thesis (M.Arch.)--Massachusetts Institute of Technology, Dept. of Architecture, 2001.<br>Includes bibliographical references (p. 98-99).<br>Generally, in the contemporary cities vertical buildings are conceived and implemented as subdivided volumes that set up highly regularized modes of inhabitation. This condition limits the possibility for more complex and adaptive spatial relationships between program and use. This limitation exists at a time when the relationship between individuals and their patterns of living is becoming increasingly more complex. This thesis will explore the design of
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45

Noble, Taryn Lee. "Southern Ocean circulation and sediment sourcing." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610485.

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46

Hobbs, Kyle. "Thermally driven natural circulation water pump." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/97066.

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Thesis (MEng)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: The water utilized by passive air-conditioning systems in buildings is typically required at higher elevations. The thermally driven natural circulation water pump (TDNCWP) is a passively driven pumping system for delivering water from ground level against gravity to a higher elevation. It consists of a humid air closed duct loop to which a temperature difference is applied, resulting in a density gradient driven flow. A hot water evaporation tray inside the loop at ground level introduces water vapour to the loop air flo
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47

Hawker, Elizabeth J. "The Nordic Seas circulation and exchanges." Thesis, University of Southampton, 2005. https://eprints.soton.ac.uk/18669/.

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The Nordic Seas provide the main oceanic connection between the Arctic and the deep global oceans via dense overflows between Greenland and Scotland, into the North Atlantic. An understanding of the circulation and exchanges of this region is vital for any consideration of the implications of high latitude climate change to variability in the Atlantic thermohaline circulation and consequences for regional (European) climate. This thesis makes use of a unique data set of near synoptic hydrographic and LADCP (lowered acoustic Doppler current profiler) measurements across the entire region during
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48

Aweda, Moses Adebayo. "Microcapteurs : application en circulation extra-corporelle." Toulouse 3, 1988. http://www.theses.fr/1988TOU30213.

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Ce travail concerne l'étude des microcapteurs pour les mesures in-vivo en continu des paramètres sanguins au cours d'une circulation extracorporelle (CEC), et en particulier le pH et la conductivité ionique du sang. Une brève présentation de CEC précède un rappel succinct des principes de fonctionnement des différents microcapteurs de pH. Les mesures invasives dans le sang posent un certain nombre de problèmes du fait des systèmes de défense immunologique. Une étude de quelques membranes biocompatibles et semi-perméables aux ions a été réalisée, le but étant l'application à l'interface sang/mi
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49

Fleury, Laurence. "Equilibres multiples de la circulation thermohaline." Toulouse 3, 1996. http://www.theses.fr/1996TOU30137.

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A l'echelle planetaire, les forcages de chaleur et d'eau douce agissent de facon antagoniste sur le champ de densite de surface de l'ocean. Cette competition entre les effets thermique et salin autorise plusieurs modes operatoires de la circulation dite thermohaline. Ses equilibres multiples sont ici etudies via la comparaison entre un modele numerique bidimensionnel et une equation asymptotique derivee dans la limite d'une couche oceanique fine. Les resultats des simulations numeriques et les solutions asymptotiques, obtenus avec differents forcages, presentent des similitudes mais egalement
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50

Antony, Isabelle. "Circulation coronaire dans l'hypertension arterielle essentielle." Paris 6, 1998. http://www.theses.fr/1998PA066388.

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Ce travail aborde les anomalies de la circulation coronaire mises en evidence chez des patients hypertendus sans autre facteur de risque cardiovasculaire, dont les arteres coronaires sont angiographiquement normales. Ces anomalies, presentes au stade precoce de l'hypertension arterielle, concernent les gros troncs epicardiques et la microcirculation coronaire. La diminution de conductance des arteres coronaires epicardiques (reduction de leur calibre), les perturbations de la vasomotricite des arteres coronaires epicardiques et resistives (etude de la vasodilatation flux-dependante et de la re
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