Dissertations / Theses on the topic 'Tension'
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Laverty, Rory. "Surface tension /." Electronic version (PDF), 2007. http://dl.uncw.edu/etd/2007-1/r1/lavertyr/rorylaverty.pdf.
Full textBundy, Penny. "Dramatic Tension: Towards an Understanding of 'Tension of Intimacy'." Thesis, Griffith University, 1999. http://hdl.handle.net/10072/366137.
Full textThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Vocational, Technology and Arts Education
Full Text
Fields, Kelvin L. "Tension stiffening response of high-strength reinforced concrete tensile members." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0002/MQ35492.pdf.
Full textVALLEJOS, CASTRO GABRIELA. "A Tension Please." Thesis, Högskolan i Borås, Institutionen Textilhögskolan, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-18107.
Full textProgram: Modedesignutbildningen
Snowdon, Roger J. III. "Tension in Space." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1461418173.
Full textHarvey, Judith Angela Felicia. "Bitumen films in tension." Thesis, University of Cambridge, 2000. https://www.repository.cam.ac.uk/handle/1810/251738.
Full textGupta, Surendra K. "Parametric splines in tension /." Online version of thesis, 1989. http://hdl.handle.net/1850/10625.
Full textThompson, Alice B. "Surface-tension-driven coalescence." Thesis, University of Nottingham, 2012. http://eprints.nottingham.ac.uk/12522/.
Full textErla, Adamsdóttir Lilý. "Tension Attention! : Dancing Embroidery." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-12400.
Full textGriesser, Arthur F. "U(1) string tension." W&M ScholarWorks, 1991. https://scholarworks.wm.edu/etd/1539623802.
Full textSakly, Jaouhar. "Influence du filtre d'entrée sur la tension de sortie des onduleurs de tension monophasés." Lille 1, 1991. http://www.theses.fr/1991LIL10154.
Full textWeitzel, Annegret. "Tension Free Vaginal Tape (TVT)." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-76515.
Full textШевченко, Володимир Порфирович, Владимир Порфирьевич Шевченко, Volodymyr Porfyrovych Shevchenko, and І. А. Пустовий. ""Tension free" герніопластика вентральних кил." Thesis, Вид-во СумДУ, 2007. http://essuir.sumdu.edu.ua/handle/123456789/4968.
Full textYuan, Xing-Hong. "Simplification des reseaux moyenne tension." Paris 6, 1989. http://www.theses.fr/1989PA066736.
Full textEzanno, Pierre. "Flippase, tension mécanique et mécanosensibilité." Paris 6, 2009. http://www.theses.fr/2009PA066167.
Full textMembrane proteins and soluble proteins are sensitive to their environment. The lateral mechanical tension in membrane via lipids is a physico-chemical parameter of membrane protein environment. The flippase (a membrane protein) can modulate this tension creating an asymmetry of lipids populations between both of membrane leaflets. Flippase from erythrocytes (a Mg ATP dependent ATPase) is, in this thesis, used unpurified: from its native membrane. A mechanosensitive membrane protein changes conformation according to the mechanical tension in the membrane; for example, the MscL (Mechano sensitive channel Large conductance). The flippase is still active in giant membrane systems used, despite a partial dehydration step of membrane (required step in making giant liposomes). An addition of MG ATP triggers the flippase activity which is detected by liposome shape changes. Then, the lateral mechanical tension is triggered in a membrane containing the flippase and the MscL the opening of which is monitored by electrophysiology. In the presence of flippase activity, the MscL’s behaviour is modified: the required tension to open the channel seems to be lowered
Hadidimoud, S. "Modelling local damage and material rupture (using finite element method)." Thesis, University of Surrey, 2000. http://epubs.surrey.ac.uk/998/.
Full textZuluaga, Walter. "Effect of Fatigue Cycle Loading Amplitude Tension-Tension on Composite Laminated Plates with Initial Delamination." DigitalCommons@CalPoly, 2013. https://digitalcommons.calpoly.edu/theses/1023.
Full textCanady, Brittany E. "The effects of regular aerobic exercise on tension headache." Huntington, WV : [Marshall University Libraries], 2002. http://www.marshall.edu/etd/descript.asp?ref=105.
Full textImaneini, Hossein. "Analyse et dimensionnement d'un convertisseur modulaire moyenne tension-basse tension pour la conversion isolée à découpage." Grenoble INPG, 2009. http://www.theses.fr/2009INPG0038.
Full textIn this dissertation, a modular PET structure is presented for feeding critical loads in the network. The utilized topology is a multi-cellular step-down converter that can directly connect to medium voltage levels on the primary side and provide a low-voltage, highly-stable interface for consumer applications. The presented structure consists of three stages : a Cascaded H-Bridge (CHB) rectifier, an isolation stage, and an output stage. The CHB rectifier serves as an active rectifier to ensure that the input current is sinusoidal, and it converts the high AC input voltage to low DC voltages. The isolated DC/DC converters are then connected to the DC links and provide galvanic isolation between the HV and LV sides. Finally, a three-phase inverter (which can be part of the respective load) generates the AC output with the desires amplitude and frequency. Several new control approaches are presented and verified by simulation and experimental results
Köster, Darius Vasco. "Role of Caveolae in Membrane Tension." Doctoral thesis, Universitätsbibliothek Leipzig, 2010. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-63103.
Full textCaveolae, the characteristic plasma membrane invaginations present in many cells, have been associated with numerous functions that still remain debated. Taking into account the particular abundance of caveolae in cells experiencing mechanical stress, it was proposed that caveolae constitute a membrane reservoir and bu er the membrane tension upon mechanical stress. The present work aimed to check this proposition experimentally. First, the in uence of caveolae on the membrane tension was studied on mouse lung endothelial cells in resting conditions using tether extraction with optically trapped beads. Second, experiments on cells upon acute mechanical stress showed that caveolae serve as a membrane reservoir bu ering surges in membrane tension in their immediate, ATP- and cytoskeleton-independent attening and disassembly. Third, caveolae incorporated in membrane vesicles also showed the tension bu ering. Finally, in a physiologically more relevant case, human muscle cells were studied, and it was shown that mutations with impaired caveolae which are described in muscular dystrophies render muscle cells less resistant to mechanical stress. In Summary the present work provides experimental evidence for the hypothesis that caveolae bu er the membrane tension upon mechanical stress. The fact that this was observed in cells and membrane vesicles in an ATP and cytoskeleton independent manner reveals a passive, mechanically driven process. This could be a leap forward in the comprehension of the role of caveolae in the cell, and in the understanding of genetic diseases like muscular dystrophies
Cavéoles sont des invaginations caractéristiques de la membrane plas- mique présents dans beaucoup de types cellulaires. Ils sont liées à plusieurs fonctions cellulaires, ce qui sont encore débattues. Prenant compte de l importance des cavéoles dans les cellules soumises au stress mécanique, les cavéoles sont proposées de constituer un réservoir membranaire et de tamponner la tension membranaire pendant des stresses mécaniques. Cette étude a eu le but de tester cette hypothèse expérimentalement. En premier, l in uence des cavéoles sur la tension membranaire au repos a été étudiée sur des cellules endothéliales du poumon de la souris. Puis, on a montré que les cavéoles tamponnent l augmentation de la tension membranaire après l application d un stress mécanique. En suite, la réalisation des vésicules membranaires contenant des cavéoles a permit de montrer leur rôle comme réservoir membranaire dans un système simpli é. Finalement, dans un contexte physiologiquement plus relevant, l étude des cellules musculaires a montrée que les mutations du cavéolin associées aux dystrophies musculaires rendent les cellules moins résistante aux stresses mécaniques. En conclusion, cette étude supporte l\'hypothèse que les cavéoles tamponnent la tension membranaire pendant des stresses mécaniques. Le fait que cela se passe dans les cellules et les vésicules indépendamment d ATP et du cytosquelette révèlent un processus passif et mécanique. Cela pourrait servir à une meilleure compréhension du rôle des cavéoles dans la cellule et les maladies génétiques comme les dystrophies musculaires
Kottke, Peter Arthur. "Rheological Implications of Tension in Liquids." Diss., Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/5015.
Full textMaraun, Timothy Fritz. "Tension in 18th century Chinese painting." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/31841.
Full textArts, Faculty of
Art History, Visual Art and Theory, Department of
Graduate
Nunez, Ian Louis. "Centrifuge model tension piles in clay." Thesis, University of Cambridge, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316783.
Full textOng, Chee Fatt. "Computer-aided design of tension structures." Thesis, City University London, 1992. http://openaccess.city.ac.uk/7994/.
Full textRidge, I. M. L. "Bending-tension fatigue of wire rope." Thesis, University of Reading, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.315486.
Full textKennedy, Catherine. "Welfare and health : systems in tension." Thesis, University of Glasgow, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.297521.
Full textTsai, Frank J. (Frank Jin-Fong) 1976. "Distributed active control for tension structures." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/81544.
Full textMejía, Madrid Renato. "The Tension between work and homelife." IUS ET VERITAS, 2014. http://repositorio.pucp.edu.pe/index/handle/123456789/123440.
Full textEn el presente artículo, el autor presenta el problema de la tensión entre el trabajo y la vida familiar. Para ello, aborda una perspectiva principalmente de género, analizando los roles masculino y femenino en diferentes escenarios laborales, y comparando la situación actual de las políticas laborales impuestas por el estado. Concluye señalando la insuficiencia de las políticas actuales, para luego proponer como solución la corresponsabilidad.
Pargana, Julio Balsa. "Realistic modelling of tension fabric structures." Thesis, Imperial College London, 2004. http://hdl.handle.net/10044/1/51483.
Full textHAMPIKIAN, PASCAL DENIS. "Diode rapide de puissance haute tension." Paris 11, 1991. http://www.theses.fr/1991PA112194.
Full textLindqvist, Sanne. "The Contrastive Tension Methodand Corpus Variety." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-452234.
Full textKim, Jae Seung. "Complex modulus from indirect tension testing." [Gainesville, Fla.] : University of Florida, 2002. http://purl.fcla.edu/fcla/etd/UFE1000133.
Full textTitle from title page of source document. Document formatted into pages; contains x, 96 p.; also contains graphics. Includes vita. Includes bibliographical references.
Newton, Audrey. "Spaces of Tension and Material Disruptions." Thesis, The University of Sydney, 2018. https://hdl.handle.net/2123/22358.
Full textTones, Matthew. "Nietzsche, Tension and the Tragic Disposition." Thesis, Griffith University, 2013. http://hdl.handle.net/10072/365917.
Full textThesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Humanities
Arts, Education and Law
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Napier, Amelia Carroll. "Generational Tension in Middle English Lais." W&M ScholarWorks, 1992. https://scholarworks.wm.edu/etd/1539625740.
Full textOmair, Moayad R. "The behaviour of welded T-end plate connections to rectangular hollow section (RHS)." Thesis, Coventry University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313163.
Full textJihad, Hamza El. "Contribution à l'étude des convertisseurs multi-niveaux moyenne tension : réduction d'harmoniques BF et linéarisation de leur tension." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0175.
Full textThis thesis deals with multi-level power converters for electrical drive applications, used in particular in the field of Oil & Gas and marine propulsion, or for network applications such as reactive energy compensation. The objective is to optimize the controls of these converters in order to reduce the harmonic content of the output voltage and therefore of the current, a very important parameter for the sizing of both the output filters and the electrical machines connected to them. In the first part of this thesis, the different multi-level topologies are analyzed and three selected five-level topologies are compared in terms of the number of semiconductor components, losses, harmonic content and the energy stored in the passive elements. Depending on the application type, one of them is preferred over the others. In the second part, we proposed a method for reducing low frequency harmonics of the multilevel converter output voltage, which consists in controlling the phase of the PWM carriers for integer ratios of the switching frequency and the fundamental frequency. The minimization of low-frequency harmonics of the converter output voltage by optimizing the carrier phase is first validated by numerical simulations and then practically implemented and validated using a real time simulator RT-Lab. To overcome the problems of non-linearities introduced by the classical clamping methods of the reference voltages of multi-level converters, limiting the amplitude of the maximum achievable output voltage, we propose a new linearization method in the last part of this thesis. This involves adding an optimized zero-sequence component to the reference voltages of multi-level converters to linearize the fundamental of their output voltages, which makes it possible to increase their amplitude to its maximum achievable value. This method is tested by numerical simulation in the control of a complete electric drive system allowing it to operate over the entire speed range, without affecting the voltage balancing of the main DC bus capacitors
MENDES, ROBERTA RODRIGUES. "EXPERIMENTAL STUDY OF CONCRETE SPECIMENS REINFORCED WITH STEEL FIBERS SUBJECT TO TENSION UNDER DIAMETRAL COMPRESSION AND DIRECT TENSION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2016. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=29303@1.
Full textCOORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
PROGRAMA DE EXCELENCIA ACADEMICA
Esta pesquisa apresenta um estudo experimental do comportamento de corpos de prova de concreto armado com fibras metálicas comprimidos diametralmente e os submetidos à tração direta. Foram analisados 72 corpos de prova no LEM-DEC da PUC-Rio, sendo 54 cilíndricos variando-se o diâmetro e o consumo de fibras para o ensaio de compressão diametral e 18 variando-se o consumo de fibras para o ensaio de tração direta. Os 54 corpos de prova foram divididos em três grupos de acordo com a resistência à compressão (20, 30 e 50 MPa), cada grupo com 18 corpos de prova com consumo de fibras (20 kg/metro cúbico, 40 kg/metro cúbico e 60 kg/metro cúbico) e diâmetros distintos (5 cm, 10 cm e 15 cm). Foram avaliados a resistência de tração, energia de deformação e efeito escala. Os resultados obtidos permitem analisar a influência do consumo de fibras e do diâmetro do corpo de prova. A resistência à tração varia linearmente com o consumo e o diâmetro do corpo de prova, verificando-se que a resistência do corpo de prova com diâmetro de 15 cm é 42 por cento menor que o de 5 cm. A energia de deformação não apresentou acréscimo significativo com o aumento do consumo de fibras de 40 kg/metro cúbico para 60 kg/metro cúbico. A análise do efeito escala mostra um decréscimo da resistência à tração com incremento da dimensão do corpo de prova, e os resultados se assemelham aos estudos realizados por Carpinteri (1995), mesmo com consumos de fibras distintos. Os 18 corpos de prova submetidos à tração direta têm a mesma dimensão, diferindo em resistência (20, 30 e 50 MPa) e consumo (20 kg/metro cúbico, 40 kg/metro cúbico e 60 kg/metro cúbico). Nesses foi avaliada a energia de deformação plástica e elástica. A região plástica não fica delineada para o consumo de 20 kg/metro cúbico apresentando um comportamento similar ao concreto convencional.
This research presents an experimental study on the behavior of reinforced concrete specimens with steel fibers submitted to the splitting test and to direct tension. A total of 72 specimens were tested in the LEM-DEC PUC-Rio; 54 specimens with three different diameters and fiber consume for the diametral compression test and 18 with variations of fiber volume fraction for the direct tension test. The 54 specimens were divided into three groups according to their compressive strength (20, 30 and 50 MPa), each group having 18 specimens with variations of fiber volume fraction (20 kg / cubic meter, 40 kg / cubic meter and 60 kg / cubic meter and diameter (5 cm, 10 cm and 15 cm). The purpose was to investigate the tensile stress, the fracture energy and the size effect. The results allowed the analysis of the influence of the fibers and specimen diameter on each variable before mentioned. The tensile stress varies linearly with fiber volume fraction and diameter, and the resistance of the specimens with 15 cm in diameter is 42 per cent less than the resistance of the 5 cm specimen. The fracture energy was not increased significantly with the increase of fiber content from 40 kg fibers / cubic meter to 60 kg / cubic meter. The size effect analysis shows that tensile strength decreases as the diameter increases. These results are similar to those of studies conducted by Carpinteri (1995), even with different values of fiber consume. The 18 specimens submitted to direct tension had the same diameter, varying in resistance (20, 30 and 50 MPa) and fiber volume fraction (20 kg / cubic meter, 40 kg / cubic meter and 60 kg /cubic meter). Here the plastic and elastic deformations were evaluated. The plastic region is not clearly defined for the fiber fraction of 20 kg / cubic meter presenting a behavior similar to the conventional concrete.
Bassin, Cédric. "Dispositifs haute-tension pour technologies CMOS standard /." [S.l.] : [s.n.], 2001. http://library.epfl.ch/theses/?nr=2447.
Full textTouhami, Youssef. "Effects of viscosity on dynamic interfacial tension." Thesis, University of Ottawa (Canada), 1990. http://hdl.handle.net/10393/5607.
Full textBailey, Bruce Burgess, and Bruce Burgess Bailey. "Disc size influence on tension infiltrometer performance." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/626923.
Full textJensen, Ward Calvin. "A capillary method for line tension determination." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/mq22607.pdf.
Full textSokolov, Aleksandr. "Tension stiffening model for reinforced concrete beams." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100803_110628-45999.
Full textGelžbetonis yra kompozitinė medžiaga, kurios komponentai yra betonas ir plieninė armatūra. Kaip žinoma, betono stipris tempiant yra 10-20 kartų mažesnis nei stipris gniuždant. Atrodytų, kad tempiamojo betono įtaka, atlaikant įrąžas skerspjūvyje, yra nereikšminga. Iš tiesų, nustatant lenkiamųjų elementų stiprumą normaliniame pjūvyje, tempiamo betono įtempių galima nevertinti. Kita vertus, skaičiuojant įlinkius, neįvertinus tempiamojo betono įtakos, gali būti daroma didesnė nei 100 % paklaida. Adekvatus supleišėjusio tempiamojo betono įtakos įvertinimas, nustatant trumpalaike apkrova veikiamų gelžbetoninių elementų deformacijas, yra bene svarbiausia ir sudėtingiausia problema. Plyšio vietoje betonas negali atlaikyti tempimo įtempių, todėl visą įrąžą atlaiko armatūra. Kadangi plyšyje ir gretimuose pjūviuose armatūra praslysta betono atžvilgiu, kontakto zonoje atsiranda tangentiniai įtempiai. Šie įtempiai perduodami betonui, todėl jis atlaiko tempimo įtempius. Armatūros ir betono sąveika ruožuose tarp plyšių standina gelžbetoninį elementą. Supleišėjusio betono gebėjimas atlaikyti tempimo įtempius vadinama tempimo sustandėjimu (angl. tension stiffening). Šis efektas dažniausiai modeliuojamas supleišėjusio betono įtempių ir deformacijų diagrama, taikant vidutinių plyšių koncepciją. Tuomet neatsižvelgiama į diskrečius plyšius, o supleišėjęs betonas traktuojamas kaip ortotropinė medžiaga su pakitusiomis savybėmis. Dauguma tempimo sustandėjimo modelių įvertina betono įtempių... [toliau žr. visą tekstą]
Grimshaw, Matthew John. "Effects of oxygen tension on articular chondrocytes." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.313728.
Full textClewett, James. "Emergent surface tension in boiling granular media." Thesis, University of Nottingham, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.604898.
Full textLi, Yuen-mei Emmy, and 李琬微. "Cost-effectiveness of treating normal tension glaucoma." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45173114.
Full textPate, Chad P. "Easing the Arctic tension an economic solution." Thesis, Monterey, California. Naval Postgraduate School, 2010. http://hdl.handle.net/10945/5089.
Full textClimate change in the Arctic is affecting the ice melt more rapidly than previously anticipated and the Arctic is now forecast to be ice-free by 2013. International borders, fossil fuel reservoirs and new sea routes for navigation are just a few of the issues at stake due to the receding ice cover. Contrary to those who perceive U.S.-Russian conflict arising out of the region and advocate a military response, this thesis argues that the Arctic, precisely because of its rich hydrocarbon resources, may prove to be amenable to a capitalist peace. Research suggests that nations linked by economic interdependence are less apt to engage in conflict with each other. Nations seeking foreign direct investment will be less likely to initiate conflict, as this would diminish the potential for attracting foreign capital. Russia's economy is dependent on oil and natural gas exports and these industries have created enormous wealth for the nation. Yet Russia's existing fossil fuel reservoirs are nearing exhaustion. Tapping into Arctic reserves is a strategic imperative for Russia, however, it lacks the technological capacity to do so. The energy industry in the West is farther along in developing such extractive technology. This thesis argues that Russia's need of foreign assistance in its hydrocarbon sector will make Russia more pacific, thereby offsetting realist fears of a military conflict in the Arctic.
Dandekar, Abhijit Yeshwant. "Interfacial tension and viscosity of reservoir fluids." Thesis, Heriot-Watt University, 1994. http://hdl.handle.net/10399/1397.
Full textDrabble, Michael J. "Turbulent wind action on tension leg platforms." Thesis, Heriot-Watt University, 1989. http://hdl.handle.net/10399/855.
Full textScott, R. H. "Tension stiffening effects in reinforced concrete members." Thesis, Durham University, 1985. http://etheses.dur.ac.uk/6803/.
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