Dissertations / Theses on the topic 'Structural geometry'
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El, Ghawalby Heyayda. "Spectral geometry for structural pattern recognition." Thesis, University of York, 2011. http://etheses.whiterose.ac.uk/1525/.
Full textDavis, Robert Tucker. "Geometric Build-up Solutions for Protein Determination via Distance Geometry." TopSCHOLAR®, 2009. http://digitalcommons.wku.edu/theses/102.
Full textBousfield, R. A. "Applications of differential geometry to structural mechanics." Thesis, University of Hertfordshire, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372544.
Full textGabbrielli, Ruggero. "Foam geometry and structural design of porous material." Thesis, University of Bath, 2009. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.507759.
Full textChiao, Ling-Yun. "Membrane deformation rate and geometry of subducting slabs /." Thesis, Connect to this title online; UW restricted, 1991. http://hdl.handle.net/1773/6814.
Full textLyytik�inen, Katja Johanna. "Control of complex structural geometry in optical fibre drawing." University of Sydney. School of Physics and the Optical Fibre Technology Centre, 2004. http://hdl.handle.net/2123/597.
Full textLyyttkäinen, Katja Johanna. "Control of complex structural geometry in optical fibre drawing /." Connect to full text, 2004. http://setis.library.usyd.edu.au/adt/public_html/adt-NU/public/adt-NU20041011.120247.
Full textLyytikäinen, Katja Johanna. "Control of complex structural geometry in optical fibre drawing." Connect to full text, 2004. http://hdl.handle.net/2123/597.
Full textTitle from title screen (viewed 14 May 2008). Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the School of Physics, Faculty of Science. Includes bibliographical references. Also available in print form.
Dunne, Barry John. "Structural deformations in phosphorus and nitrogen complexes." Thesis, University of Bristol, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.346442.
Full textMedema, Guy Frederick. "Juan de Fuca subducting plate geometry and intraslab seismicity /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/6828.
Full textAydin, Utkun. "A Structural Equation Modeling Study: The Metacognition-knowledge Model For Geometry." Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/12608523/index.pdf.
Full text(2) Procedural knowledge has a signitificant and positive direct effect on conditional knowledge
(3) Declarative knowledge has a positive indirect effect on conditional knowledge
(4) Knowledge of cognition significantly and positively influences procedural knowledge
(5) Regulation of cognition has a significant but negative direct effect on procedural knowledge
(6) Knowledge of cognition has positive indirect effects on conditional and procedural knowledge
(7) Regulation of cognition has negative indirect effects on conditional and procedural knowledge
(8) Knowledge of cognition and regulation of cognition have non-significant direct effect on declarative and conditional knowledge. The results showed that knowledge of cognition has the strongest direct effect on procedural knowledge and the direct effect of declarative knowledge on conditional knowledge is stronger than on procedural knowledge. In view of the findings considerable suggestions is provided for teachers, instructional designers, and mathematics education researchers.
Folster, Kaylee. "Influence of geometry on the dynamic behaviour of steel tubular towers for onshore wind turbines." Master's thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/25282.
Full textCöllen, Liana. "Standardized Geometry Formats for AircraftConceptual Design and Physics-basedAerodynamics and Structural Analyses." Thesis, KTH, Aerodynamik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-121309.
Full textCervera, Eva. "Evolutionary structural optimisation based on boundary element representation of B-spline geometry." Thesis, Durham University, 2003. http://etheses.dur.ac.uk/2004/.
Full textLawson, K. D. "Thrust geometry and folding in the Alpine structural evolution of Haute Provence." Thesis, Swansea University, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.637860.
Full textBaker, Jonathan Mark. "Structural studies of water and ice in confined geometry by neutron diffraction." Thesis, University of Kent, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.337073.
Full textCobb, William Geoffrey Carnie. "Optimum holes in flat plates." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/38262.
Full textIrwin, Levi Jacob. "A new structural subclass of constrained geometry catalysts for the polymerization of olefins." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3106.
Full textKorla, Srikanth. "Inspection of Parts with Complex Geometry and Welds with Structural Health Monitoring Techniques." FIU Digital Commons, 2011. http://digitalcommons.fiu.edu/etd/460.
Full textAyche, Nadim S. "The Effect of High Density Polyethylene (HDPE) Pipe Profile Geometry on its Structural Performance." Ohio University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1127140719.
Full textChai, Gin Boay. "The effect of geometry and prescribed delaminations on the postbuckling behaviour of laminated carbon-fibre reinforced plastic panels." Thesis, University of Strathclyde, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303278.
Full textMatthews, Chris. "The structural geometry of the Onkaparinga Gorge region, southern Adelaide fold belt, South Australia /." Title page, contents and abstract only, 1993. http://web4.library.adelaide.edu.au/theses/09SB/09sbm438.pdf.
Full textFour coloured maps in pocket inside back cover. Three plates have overlays. National grid reference (SI 54) 6627(1: 50000). Includes bibliographical references.
Rolon, Luisa F. "Structural geometry of the Jura-Cretaceous rift of the Middle Magdalena Valley basin--Colombia." Morgantown, W. Va. : [West Virginia University Libraries], 2004. https://etd.wvu.edu/etd/controller.jsp?moduleName=documentdata&jsp%5FetdId=23.
Full textTitle from document title page. Document formatted into pages; contains vi, 63 p. : ill. (some col.), maps (some col.). Includes abstract. Includes bibliographical references (p. 29-37).
Preston, Leiph Alexander. "Simultaneous inversion of 3D velocity structure, hypocenter locations, and reflector geometry in Cascadia /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/6816.
Full textMohapatra, Gopal Krishna 1968. "Faulting and basin geometry beneath the Great Salt Lake: implications for basin evolution and cenozoic extension." Diss., The University of Arizona, 1996. http://hdl.handle.net/10150/565551.
Full textPlumridge, Timothy H. "A geometry-based simulation of the hydration of ions and small molecules." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366785.
Full textGokce, Semirhan. "A Structural Equation Modeling Study: Factors Related To Mathematics And Geometry Achievement Across Grade Levels." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/3/12606697/index.pdf.
Full textsuccess of mathematics and geometry. On the other hand, student centered activities intended to have a negative relation with mathematics and geometry achievement. As the other variables were considered, an increase on the mathematics and geometry scores of the students&rsquo
was observed in all grade levels with the increase in the perception of success and interest toward mathematics and science.
Dyck, Cynthia Lynn. "Fold geometry and structural history of the Puffy Lake area, Kisseynew gneiss belt, Manitoba, Canada." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23794.pdf.
Full textGoshtasbi, Goharizi K. "Model studies of mine excavation stability with special reference to stress field and structural geometry." Thesis, University of Nottingham, 1987. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.378762.
Full textGiannoukos, Konstantinos. "Micro-structural analysis of time-variant evolution in pore geometry of cement materials during carbonation." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/37149/.
Full textAl, Marza Raad. "Effect of the interface geometry on the structural integrity of the ceramic crown-tooth complex." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/8718/.
Full textEdgar, Russell. "Effects of Strand Geometry on Selected Properties of Long-Stand Structural Composite Lumber Made from Northeastern Hardwoods." Fogler Library, University of Maine, 2003. http://www.library.umaine.edu/theses/pdf/EdgarRA2003.pdf.
Full textBradway, Michael David. "Stratigraphy and structural geometry at the leading edge of the Montana Thrust Belt, east of Sun River Canyon, Lewis and Clark and Teton Counties, Montana." CONNECT TO THIS TITLE ONLINE, 2007. http://etd.lib.umt.edu/theses/available/etd-05072007-163806/.
Full textSong, Mingkui. "A structural skeleton based shape indexing approach for vector images." Diss., Online access via UMI:, 2009.
Find full textGlasgo, Victor. "Some Structural Results for Convex Bodies: Gravitational Illumination Bodies and Stability of Floating Bodies." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1586291378035804.
Full textFanelli, Andrea. "Two structural aspects in birational geometry : geography of Mori fibre spaces and Matsusaka's theorem for surfaces in positive characteristic." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/26285.
Full textMesnil, Romain. "Explorations structurelles de domaines de formes constructibles pour l’architecture non-standard." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC1151/document.
Full textThe last decades have seen the emergence of non-standard architectural shapes. Designers find often themselves helpless with the geometrical complexity of these objects. Furthermore, the available tools dissociate shape and structural behaviour, which adds another complication. This dissertation takes the point of view based on invariance under geometrical transformations, and studies several strategies for fabrication-aware shape modelling. Three technological constraints have been identified and correspond to three independent contributions of this thesis.The repetition of nodes is studied via transformations by parallelism. They are used to generalise surfaces of revolution. A special parametrisation of moulding surfaces is found with this method. The resulting structure has a high node congruence.Cyclidic nets are then used to model shapes parametrised by their lines of curvature. This guarantees meshing by planar panels and torsion-free beam layout. The contribution of this dissertation is the implementation of several improvements, like doubly-curved creases, a hole-filling strategy that allows the extension of cyclidic nets to complex topologies, and the generation of a generalisation of canal surfaces from two rail curves and one profile curves.Finally, an innovative method inspired by descriptive geometry is proposed to generate doubly-curved shapes covered with planar facets. The method, called marionette technique, reduces the problem to a linear problem, which can be solved in real-time. A comparative study shows that this technique can be used to parametrise shape optimisation of shell structures without loss of performance compared to usual modelling technique. The handling of fabrication constraints in shape optimisation opens new possibilities for its practical application, like gridshells or plated shell structures. The relevance of those solutions is demonstrated through multiple case-studies
Descamps, Benoît. "Optimal shaping of lightweight structures." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209362.
Full textPreviously proposed computational methods for designing lightweight structures focused either on finding an equilibrium shape, or are restricted to fairly small design applications. In this work, we aim to develop a general, robust, and easy-to-use method that can handle many design parameters efficiently. These considerations have led to truss layout optimization, whose goal is to find the best material distribution within a given design domain discretized by a grid of nodal points and connected by tentative bars.
This general approach is well established for topology optimization where structural component sizes and system connectivity are simultaneously optimized. The range of applications covers limit analysis and identification of failure mechanisms in soils and masonries. However, to fully realize the potential of truss layout optimization for the design of lightweight structures, the consideration of geometrical variables is necessary.
The resulting truss geometry and topology optimization problem raises several fundamental and computational challenges. Our strategy to address the problem combines mathematical programming and structural mechanics: the structural properties of the optimal solution are used for devising the novel formulation. To avoid singularities arising in optimal configurations, the present approach disaggregates the equilibrium equations and fully integrates their basic elements within the optimization formulation. The resulting tool incorporates elastic and plastic design, stress and displacements constraints, as well as self-weight and multiple loading.
Besides, the inherent slenderness of lightweight structures requires the study of stability issues. As a remedy, we develop a conceptually simple but efficient method to include local and nodal stability constraints in the formulation. Several numerical examples illustrate the impact of stability considerations on the optimal design.
Finally, the investigation on realistic design problems confirms the practical applicability of the proposed method. It is shown how we can generate a range of optimal designs by varying design settings. In that regard, the computational design method mostly requires the designer a good knowledge of structural design to provide the initial guess.
Doctorat en Sciences de l'ingénieur
info:eu-repo/semantics/nonPublished
Osborne, Daniel L. "An analysis of developmental plasticity in structural geometry at the proximal femur in adolescent females living in the United States." [Bloomington] : Indiana University, 2007. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3264308.
Full textSource: Dissertation Abstracts International, Volume: 68-05, Section: A, page: 2031. Advisers: Della Collins Cook; David Burr. Title from dissertation home page (viewed Jan. 9, 2008).
Borenstein, Evan. "Additive stucture, rich lines, and exponential set-expansion." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2009. http://hdl.handle.net/1853/29664.
Full textCommittee Chair: Croot, Ernie; Committee Member: Costello, Kevin; Committee Member: Lyall, Neil; Committee Member: Tetali, Prasad; Committee Member: Yu, XingXing. Part of the SMARTech Electronic Thesis and Dissertation Collection.
Khoo, Benjamin Cheng Choon. "Clinical and phantom-based studies of the validity and value of quantitative radiological hip structural analysis." University of Western Australia. School of Surgery and Pathology, 2008. http://theses.library.uwa.edu.au/adt-WU2008.0189.
Full textPinheiro, Douglas Garrido. "ESTUDO DO COMPORTAMENTO MECÂNICO DE BLOCOS CERÂMICOS COM DIFERENTES LARGURAS." Universidade Federal de Santa Maria, 2009. http://repositorio.ufsm.br/handle/1/7742.
Full textEste trabalho apresenta como objetivo principal avaliar o desempenho de blocos cerâmicos estruturais de 11,5 (Bloco A) e 14 (Bloco B) centímetros de largura, através de ensaios de blocos, prismas e pequenas paredes, utilizando dois traços de argamassa designados pela Norma Britânica, confeccionados em laboratório. O programa experimental compreendeu ensaios de compressão axial simples das unidades, prismas de três fiadas sobrepostas e pequenas paredes de dois blocos por quatro fiadas de altura. Durante os ensaios de prismas e pequenas paredes foram medidas suas deformações e, posteriormente, obtidos os módulos de elasticidade dos elementos. Com base na análise dos resultados, é possível concluir que o bloco com 11,5 centímetros de largura apresenta capacidade de absorver esforços equivalente ao bloco tradicional, podendo ser empregado com segurança. Foi possível verificar valores próximos de resistência à compressão para os corposde- prova ensaiados utilizando os dois tipos de blocos, estabelecendo comparações entre prismas e pequenas paredes com um mesmo traço de argamassa. Foi realizada a análise estatística do experimento, para verificar a comparação entre os dois blocos, onde foi observada a igualdade entre as resistências à compressão média para os ensaios de blocos e prismas com os dois tipos de argamassa, no entanto nos ensaios com pequenas paredes foi observada diferença entre as resistências médias obtidas com os dois tipos de blocos.
Yang, Zhengxiong [Verfasser], Ernst [Akademischer Betreuer] Rank, Alexander [Akademischer Betreuer] Düster, and Jamshid [Akademischer Betreuer] Parvizian. "The Finite Cell Method for Geometry-Based Structural Simulation / Zhengxiong Yang. Gutachter: Ernst Rank ; Alexander Düster ; Jamshid Parvizian. Betreuer: Ernst Rank." München : Universitätsbibliothek der TU München, 2011. http://d-nb.info/1014330602/34.
Full textAbdelhamid, Hazen Fahmy. "Incorporation of sweep in a transonic fan design using a 3D blade-row geometry package intended for aero-structural-manufacturing optimization." Diss., Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1997. http://handle.dtic.mil/100.2/ADA341590.
Full text"September 1997." Dissertation supervisor(s): Raymond P. Shreeve. Includes bibliographical references (p. 107-108). Also available online.
Molinaro, Matteo. "Geometry and kinematics of the SE Zagros Mountains (Iran) : structural geology and geophysical modelling in a young collisional fold-thrust belt." Paris 11, 2004. http://www.theses.fr/2004PA112177.
Full textThis thesis focuses on the structure and kinematics of the south-eastern Zagros Mountains (Iran) and the transitional structures with the adjacent Makran accretionary prism, known as the Bandar Abbas syntaxis. The structural style, as evidenced by a field-based structural study, is strongly controlled by changing mechanical stratigraphy and therefore paleogeographic conditions from one side to the other of the syntaxis. Restoration of the first complete balanced cross-section through the south-eastern Zagros fold-thrust belt shows that the external part of the orogen (a) underwent two main phases of deformation, i. E. A thin-skinned phase of deformation followed and partly overprinted by a thick-skinned phase, and (b) absorbed at least 45 km of shortening since middle Miocene times. The presence of an exceptionally thick layer of salt at the base of the cover allowed the development of huge detachment anticlines. Field examples from our study area and seismic profiles from Central Zagros allow us to discuss the still poorly understood kinematics of these folds as well as examine the various factors controlling the style of folding, essentially salt mobility, multiple decollement levels and late basement faulting. Finally, geophysical modelling of the deep lithospheric structure of Zagros brings new insight on the fundamental factors controlling the recent orogenic kinematics. In particular, a previously undocumented thinning of the lithosphere beneath Zagros could be attributed to recent slab break-off and is thought to have controlled the recent switch from thin-skinned to thick-skinned tectonics
Spyrou, Evangelos. "The effect of shell geometry on the impact attenuating capabilities of ice hockey helmets relative to liner structural characteristics and impact conditions." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29578.pdf.
Full textMildon, Z. K. "The link between earthquakes and structural geology : the role of elapsed time, 3D geometry and stress transfer in the central Apennines, Italy." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/10039494/.
Full textYassaghi, Ali. "Geometry, kinematics, microstructure, strain analysis, and P-T conditions of the shear zones and associated ductile thrusts in the southern Mt. Lofty Ranges/Adelaide Hills area, South Australia /." Title page, contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phy29.pdf.
Full textAngleby, Linda. "Structural and electronic properties of bare and organosilane-functionalized ZnO nanopaticles." Thesis, Linköping University, Linköping University, Linköping University, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-58691.
Full textA systematic study of trends in band gap and lattice energies for bare zinc oxide nanoparticles were performed by means of quantum chemical density functional theory (DFT) calculations and density of states (DOS) calculations. The geometry of the optimized structures and the appearance of their frontier orbitals were also studied. The particles studied varied in sizes from (ZnO)6 up to (ZnO)192.The functionalization of bare and hydroxylated ZnO surfaces with MPTMS was studied with emphasis on the adsorption energies for adsorption to different surfaces and the effects on the band gap for such adsorptions.
Springer, Adam. "Constraining Basin Geometry and Fault Kinematics on the Santo Tomás Segment of the Agua Blanca Fault Through a Combined Geophysical and Structural Study." Scholar Commons, 2010. https://scholarcommons.usf.edu/etd/1779.
Full text