Dissertations / Theses on the topic 'Shock'
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Schwendeman, Donald William Whitham G. B. "Numerical shock propagation using geometrical shock dynamics /." Diss., Pasadena, Calif. : California Institute of Technology, 1986. http://resolver.caltech.edu/CaltechETD:etd-03082008-083041.
Full textZhou, Chunyan. "Shock response and shock protection of portable electronics /." View abstract or full-text, 2007. http://library.ust.hk/cgi/db/thesis.pl?MECH%202007%20ZHOU.
Full textMorrow, Heather. "Shock absorption." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape9/PQDD_0016/MQ54662.pdf.
Full textLong, Jessica B. "Paradoxical effects of shock the role of shock intensity and interresponse times followed by shock /." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10369.
Full textTitle from document title page. Document formatted into pages; contains viii, 95 p. : ill. Includes abstract. Includes bibliographical references (p. 40-43).
Hennessey, Noel. "Overcoming Shock: An Examination of Transfer Shock and Student Resiliency." Thesis, The University of Arizona, 2015. http://hdl.handle.net/10150/560635.
Full textTodd, Susan Katharine. "Shock assisted ventilation." Thesis, University of Surrey, 1999. http://epubs.surrey.ac.uk/843314/.
Full textMirshekari, Gholamreza. "Microscale shock tube." Thèse, Université de Sherbrooke, 2008. http://savoirs.usherbrooke.ca/handle/11143/1897.
Full textSen, Srimoyee, and Naoki Yamamoto. "Chiral Shock Waves." AMER PHYSICAL SOC, 2017. http://hdl.handle.net/10150/624056.
Full textMutz, Andrew Howard Vreeland Thad. "Heterogeneous shock energy deposition in shock wave consolidation of metal powders /." Diss., Pasadena, Calif. : California Institute of Technology, 1991. http://resolver.caltech.edu/CaltechETD:etd-06282007-091349.
Full textLloyd, Alan. "Performance of reinforced concrete columns under shock tube induced shock wave loading." Thesis, University of Ottawa (Canada), 2010. http://hdl.handle.net/10393/28510.
Full textJamaluddin, Ahmad Riza. "Free-Lagrange simulations of shock-bubble interaction in extracorporeal shock wave lithotripsy." Thesis, University of Southampton, 2005. https://eprints.soton.ac.uk/47507/.
Full textMolder, Sannu. "Curved aerodynamic shock waves." Thesis, McGill University, 2012. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=110629.
Full text1RésuméLa théorie des ondes de chocs courbées (TOCC; Curved Shock Theory) a été généralisée aux chocs axisymétriques dans un écoulement non uniforme. Une formule générale a été dérivée pour les sauts de vorticité à travers un choc à double courbe dans un écoulement non uniforme. La forme coefficient d'influence des équations des gradients et de la vorticité démontrent l'effet de la variation des conditions en amont. La TOCC a été appliquée à plusieurs écoulements simples avec chocs incluant l'orientation de la surface sonique à la face arrière d'un choc à double courbe. Cette orientation est importante pour déterminer l'existence d'ondes de choc intégrées à l'écoulement aval. L'application de la TOCC aux ondes de choc courbées, concaves et normales permet de dériver une relation explicite entre la courbe du choc et la longueur de l'écoulement subsonique derrière l'onde. L'étude analytique, numérique et expérimentale des écoulements coniques n'a pas permis de démontrer l'existence de réflexions régulières des chocs à l'axe de symétrie des écoulements. Un choc conique prédit analytiquement sur la ligne d'écoulement n'atteint pas l'axe central, mais se termine en réflexion Mach. Il semble que l'existence d'une solution Taylor-Mccoll (T-M) ne garantit pas l'existence physique d'un écoulement conique. Les équations T-M prédisent l'existence d'un train d'ondes de compression axisymétrique, analogue au train d'ondes de Prandtl-Meyer dans un écoulement planaire. Un choc conique détaché est situé en aval du train de compression. L'existence des deux caractéristiques a été démontrée par CFD ainsi qu'expérimentalement. L'écoulement Busemann est le seul écoulement où ces structures d'ondes peuvent exister : une compression centrée peut être reflétée en onde de choc conique. La découverte d'un point d'inflexion dans la ligne d'écoulement de Busemann a une implication importante au démarrage spontané de diffuseurs Busemann. Trois types d'écoulements peuvent exister à l'arrière d'un choc concave à double courbure : ils sont caractérisés par l'orientation de la surface sonique qui, à son tour, est déterminée par le nombre de Mach pré-choc et le ratio de courbures du choc. Des formes de surfaces d'ondes de choc axiales particulières, avec écoulement droit en aval (chocs Crocco), ou avec un gradient de pression tendant vers zéro dans l'axe d'écoulement (chocs Thomas) ainsi que des chocs avec une réflectivité acoustique spécifique (incluant nulle) ont été calculées et illustrées. Une réduction du bruit de couche limite est aussi possible.2L'étranglement local au bord d'attaque d'une pointe courbée mène au détachement de l'onde de choc, lequel dépend du nombre de Mach de l'écoulement libre, de l'angle, de la courbure et de la longueur de la pointe. Ce sont de nouveaux critères pour le détachement du choc avec des analogies pouvant s'étendre aux transitions des réflexions régulières aux réflexions Mach.
Jinks, Edward. "Adaptive shock control bumps." Thesis, Imperial College London, 2016. http://hdl.handle.net/10044/1/45535.
Full textQian, Cheng. "Simulation of Mechanical Shock with Finite Element Analysis and Estimation of Shock Attenuation." Thesis, KTH, Hållfasthetslära, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294549.
Full textRymdutrustning utsätts ofta för mekaniska stötar, s.k. mekanisk chock. Vissa enheter, som elektronik, är känsliga för stötar och de kan lätt skadas. För att skydda dessa enheter är det viktigt att studera chockdämpningen i rymdstrukturer. Finita elementmetoden är ett effektivt verktyg för att simulera responsen vid transienta excitationer. Till skillnad från statistisk energianalys (SEA) som kan säkerställa tillräcklig noggrannhet i högfrekvensintervall, är finit elementanalys (FEA) begränsad till lågt frekvensområde, men har inga rumsliga begränsningar. I detta examensarbete kombinerades Tumas digitala filtermetod och Irvines rekursiva digitala metod för att beräkna Chockresponsspektrum (SRS). FEA-modeller baserade på ett givet experimentellt system, d.v.s. chockbord, användes för att förutsäga den strukturella responsen på Haversine-formade krafter. Den modala transienta strukturanalysen genomfördes med ANSYS Workbench. Den transienta analysen baserad på modala resultat försummar icke-linjäriteter i material och struktur för att använda mindre minne och förkorta beräkningstiden. FEA och Bernoulli-balkekvationen användes för att simulera chockresponsen av konsolbalkar och balkar med fast inspänning i ena änden och fri uppläggning i den andra änden, för att validera FEA-modellerna. SRS beräknat från FEA-resultaten jämfördes med resultat från balkekvationen. Ingen avgörande skillnad noteras mellan Bernoullis balkekvationsresultat och FEA-resultat för tunna balkar, vilket validerar FEA-modellerna. SRS för två balkmodeller beräknade från FEA med solida element jämfördes med de som använde balkelement. Resultaten från de två olika elementtyperna överensstämmer mycket bra. Responsen vid olika positioner på chockbordet mättes för att förutsäga chockdämpningen. Chockdämpningen beskrivs som kvarvarande procent av responsen vid chockkällan och kurvan från FEA-simulering överensstämde ganska bra med tumregeln för chockdämpning från ESTEC-databasen.
Eliasson, Veronica. "On focusing of strong shock waves." Licentiate thesis, Stockholm : Department of Mechanics, Royal Institute of Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-565.
Full textZiolkowski, Sandra L. "Analyzing the immediate shock deficit, a behavioural examination of post-shock activity in rats." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/nq21664.pdf.
Full textBurrell, Russell P. "Performance of Steel Fibre Reinforced Concrete Columns under Shock Tube Induced Shock Wave Loading." Thesis, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23516.
Full textVandersall, Kevin S. "Investigation of shock-induced and shock-assisted chemical reactions in Mo-Si powder mixtures." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/19146.
Full textTabak, Esteban Gregorio. "Focusing of weak shock waves and the von Neumann paradox of oblique shock reflection." Thesis, Massachusetts Institute of Technology, 1992. http://hdl.handle.net/1721.1/108868.
Full textJones, Michelle Lynne. "Experimental Investigation of Shock-Shock Interactions over a 2-D Wedge at M = 6." Thesis, Virginia Tech, 2013. http://hdl.handle.net/10919/23202.
Full textMaster of Science
Fox, Thomas Edward. "Strong shock wave generation by fast electron energy deposition in shock ignition relevant plasmas." Thesis, University of York, 2014. http://etheses.whiterose.ac.uk/6625/.
Full textBourne, Neil Kenneth. "Shock wave interactions with cavities." Thesis, University of Cambridge, 1990. https://www.repository.cam.ac.uk/handle/1810/250963.
Full textMäkinen, Kjell. "Underwater shock loaded sandwich structures /." Stockholm, 1999. http://www.lib.kth.se/abs99/maki0326.pdf.
Full textEliasson, Veronica. "On focusing of shock waves." Doctoral thesis, Stockholm : Mekanik, Kungliga Tekniska högskolan, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4479.
Full textNaumann, Michael. "MEMS reliability in shock environments." Doctoral thesis, Universitätsbibliothek Chemnitz, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-117360.
Full textLee, Donggeol. "Culture shock : video interview project." Virtual Press, 2007. http://liblink.bsu.edu/uhtbin/catkey/1371470.
Full textDepartment of Telecommunications
Lennon, Francis. "Shock wave propagation in water." Thesis, Manchester Metropolitan University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240559.
Full textHerrera, Montojo Javier. "Shock estimation in supersonic vehicles." Thesis, University of Strathclyde, 2017. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=28628.
Full textEkbal, N. J. "NADH monitoring in shock states." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1463985/.
Full textLedezma, Ramirez Diego Francisco. "Shock isolation using switchable stiffness." Thesis, University of Southampton, 2008. https://eprints.soton.ac.uk/64538/.
Full textBarker, Bryn Nicole. "Stability of MHD Shock Waves." BYU ScholarsArchive, 2020. https://scholarsarchive.byu.edu/etd/8437.
Full textBesperát, Tomáš. "Marketingová strategie značky BIG SHOCK!" Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-149847.
Full textHassinger, Elaine. "Shock-Chlorination of Domestic Wells." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1994. http://hdl.handle.net/10150/156938.
Full textShock-chlorination is an effective way to disinfect your well and household plumbing. You should shock-chlorinate your well after repairing it, or, if a lab test shows there are coliform bacteria in the water. This publication explains how shock-chlorination works and the steps needed to use this treatment.
Fagelson, Marc A. "Grand Rounds: Acoustic Shock Disorder." Digital Commons @ East Tennessee State University, 2019. https://dc.etsu.edu/etsu-works/5410.
Full textFrazer, Brett Graeme. "Analysis of shock compacted zirconia." Thesis, Queensland University of Technology, 1999.
Find full textEichmann, Troy N. "An experimental investigation of shock shapes and shock stand-offs in a super-orbital facility /." [St. Lucia, Qld.], 2003. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe18122.pdf.
Full textRosten, Patricia Melanie. "The role of toxic shock syndrome toxin-1 in the pathogenesis of toxic shock syndrome." Thesis, University of British Columbia, 1986. http://hdl.handle.net/2429/26527.
Full textScience, Faculty of
Microbiology and Immunology, Department of
Graduate
Joplin, Karl H. "Protein expression in flesh flies (Sarcophaga) in response to heat shock, cold shock and diapause /." The Ohio State University, 1989. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487668215807964.
Full textStevens, Meredith Leigh. "Global repression of non-heat shock gene transcription by activation of heat shock factor in Drosophila." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0004/MQ46197.pdf.
Full textHilmarsson, Brynjar. "Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-244871.
Full textMatsuda, Tomoko. "Suppression of Heat Shock Protein-70 by Ceramide in Heat Shock-induced HL-60 Cell Apoptosis." Kyoto University, 2003. http://hdl.handle.net/2433/148483.
Full textTazir, Yasmina. "Strongyloides ratti : identification, isolation and characterisation of Heat Shock Protein 10 and Heat Shock Protein 60 /." Giessen : VVB Laufersweiler, 2009. http://d-nb.info/99845494X/04.
Full textRisner, Christopher D. "Development of Cal Poly's Shock Table." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1677.
Full textErnst, Scott. "A nonlinear investigation of corrugation instabilities in magnetic accretion shocks." Thesis, University of Oregon, 2011. http://hdl.handle.net/1794/11229.
Full textAccretion shock waves are present in many important astrophysical systems and have been a focus of research for decades. These investigations provide a large body of understanding as to the nature, characteristics, and evolutionary behaviors of accretion shock waves over a wide range of conditions. However, largely absent are investigations into the properties of accretion shock waves in the presence of strong magnetic fields. In such cases these strong magnetic fields can significantly alter the stability behaviors and evolution of the accretion shock wave through the production and propagation of magnetic waves as well as magnetically constrained advection. With strong magnetic fields likely found in a number of accretion shock systems, such as compact binary and protostellar systems, a better understanding of the behaviors of magnetic accretion shock waves is needed. A new magnetohydrodynamics simulation tool, IMOGEN, was developed to carry out an investigation of instabilities in strong, slow magnetic accretion shocks by modelling their long-term, nonlinear evolution. IMOGEN implements a relaxed, second-order, total variation diminishing, monotonic upwind scheme for conservation laws and incorporates a staggered-grid constrained transport scheme for magnetic advection. Through the simulated evolution of magnetic accretion shocks over a wide range of initial conditions, it has been shown, for sufficiently high magnetic field strengths, that magnetic accretion shocks are generally susceptible to corrugation instabilities, which arise in the presence of perturbations of the initial shock front. As these corrugation instabilities grow, they manifest as magnetic wave propagation in the upstream region of the accretion column, which propagate away from the accretion shock front, and as density columns, or fingers, that grow into the higher density downstream flow, defined and constrained by current loops created during the early evolution of the instability.
Committee in charge: Dr. James Schombert, Chair; Dr. James Imamura, Advisor; Dr. Alan Rempel, Member; Dr. John Toner, Member; Dr. Kent Stevens, Outside Member
Kankkunen, Erika. "Cognitive ability and transitory productivity shocks." Thesis, Uppsala universitet, Nationalekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-388373.
Full textCasoni, Rero Eva. "Shock capturing for discontinuous Galerkin methods." Doctoral thesis, Universitat Politècnica de Catalunya, 2011. http://hdl.handle.net/10803/51571.
Full textThis thesis proposes shock-capturing methods for high-order Discontinuous Galerkin (DG) formulations providing highly accurate solutions for compressible flows. In the last decades, research in DG methods has been very active. The success of DG in hyperbolic problems has driven many studies for nonlinear conservation laws and convection-dominated problems. Among all the advantages of DG, their inherent stability and local conservation properties are relevant. Moreover, DG methods are naturally suited for high-order approximations. Actually, in recent years it has been shown that convection-dominated problems are no longer restricted to low-order elements. In fact, highly accurate numerical models for High-Fidelity predictions in CFD are necessary. Under this rationale, two shock-capturing techniques are presented and discussed. First, a novel and simple technique based on on the introduction of a new basis of shape functions is presented. It has the ability to change locally between a continuous or discontinuous interpolation depending on the smoothness of the approximated function. In the presence of shocks, the new discontinuities inside an element introduce the required stabilization thanks to the numerical fluxes, thus exploiting DG inherent properties. Large high-order elements can therefore be used and shocks are captured within a single element, avoiding adaptive mesh refinement and preserving the locality and compactness of the DG scheme. Second, a classical and, apparently simple, technique is advocated: the introduction of artificial viscosity. First, a one-dimensional study is perfomed. Viscosity of the order O(hk) with 1≤ k≤ p is obtained, hence inducing a shock width of the same order. Second, the study extends the accurate one-dimensional viscosity to triangular multidimensional meshes. The extension is based on the projection of the one-dimensional viscosity into some characteristic spatial directions within the elements. It is consistently shown that the introduced viscosity scales, at most, withthe DG resolutions length scales, h/p. The method is especially reliable for highorder DG approximations, say p≥3. A wide range of different numerical tests validate both methodologies. In some examples the proposed methods allow to reduce by an order of magnitude the number of degrees of freedom necessary to accurately capture the shocks, compared to standard low order h-adaptive approaches.
Carter, John P. "Magnetic field generation in shock waves." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1994. http://edocs.nps.edu/npspubs/scholarly/theses/1994/June/94Jun_Carter.pdf.
Full textAhmed, Syed Muzaffor. "Molecular Shock Structure in Multifluid MagnetohydrodynamicS." Thesis, University of Leeds, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486150.
Full textKarnick, Pradeepa Tumkur. "Shocks, Shock-Boundary Layer Interaction, And Transonic Flutter." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2688.
Full textKarnick, Pradeepa Tumkur. "Shocks, Shock-Boundary Layer Interaction, And Transonic Flutter." Thesis, 2014. http://etd.iisc.ernet.in/handle/2005/2688.
Full text