Дисертації з теми "TOV Equation"
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Rutstam, Nils. "Study of equations for Tippe Top and related rigid bodies." Licentiate thesis, Linköpings universitet, Tillämpad matematik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-60835.
Повний текст джерелаMåhl, Anna. "Separation of variables for ordinary differential equations." Thesis, Linköping University, Department of Mathematics, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5620.
Повний текст джерелаIn case of the PDE's the concept of solving by separation of variables
has a well defined meaning. One seeks a solution in a form of a
product or sum and tries to build the general solution out of these
particular solutions. There are also known systems of second order
ODE's describing potential motions and certain rigid bodies that are
considered to be separable. However, in those cases, the concept of
separation of variables is more elusive; no general definition is
given.
In this thesis we study how these systems of equations separate and find that their separation usually can be reduced to sequential separation of single first order ODE´s. However, it appears that other mechanisms of separability are possible.
Heavilin, Justin. "The Red Top Model: A Landscape-Scale Integrodifference Equation Model of the Mountain Pine Beetle-Lodgepole Pine Forest Interaction." DigitalCommons@USU, 2007. https://digitalcommons.usu.edu/etd/7137.
Повний текст джерелаYang, Ronghua. "Studies on value distribution of solutions of complex linear differential equations /." Joensuu : Joensuun yliopistopaino, 2006. http://www.loc.gov/catdir/toc/fy0706/2006421381.html.
Повний текст джерелаDengiz, Suat. "3+1 Orthogonal And Conformal Decomposition Of The Einstein Equation And The Adm Formalism For General Relativity." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612949/index.pdf.
Повний текст джерелаSchulz, Stephan. "Leaning search control knowlledge for equational deduction /." Berlin : AKA, 2000. http://www.loc.gov/catdir/toc/fy0804/2007440965.html.
Повний текст джерелаHäggström, Johan. "Teaching systems of linear equations in Sweden and China : what is made possible to learn? /." Göteborg : Göteborgs universitet, 2008. http://www.loc.gov/catdir/toc/fy0805/2008380731.html.
Повний текст джерелаBernroider, Edward, and Patrick Schmöllerl. "A technological, organisational, and environmental analysis of decision making methodologies and satisfaction in the context of IT induced business transformations." Elsevier, 2013. http://dx.doi.org/10.1016/j.ejor.2012.07.025.
Повний текст джерелаRippeyoung, Phyllis Love Farley. "Is it too late baby? pinpointing the emergence of a black-white test score gap in infancy." Diss., University of Iowa, 2006. http://ir.uiowa.edu/etd/80.
Повний текст джерелаEl-Kafri, Manal M. Lutfi. "Symmetry methods applied to Richard's equations and problems of infiltration." Thesis, University of South Wales, 2006. https://pure.southwales.ac.uk/en/studentthesis/symmetry-methods-applied-to-richards-equations-and-problems-of-infiltration(e94a3a66-f16b-46cd-a9c8-192ac6b995bc).html.
Повний текст джерелаTurchi, Alessio. "Dynamics and statistics of systems with long range interactions : application to 1-dimensional toy-models." Thesis, Aix-Marseille, 2012. http://www.theses.fr/2012AIXM4810/document.
Повний текст джерелаThe scope of this thesis is the study of systems with long-range interactions (LR). The complexity of their dynamics evidences counter-intuitive and unexpected properties, as for instance the existence of out-of-equilibrium stationary states (QSS). Considering a system in the QSS, one may observe peculiar properties, as negative specific heat, statistical ensemble inequivalence and phenomena of self-organizations. The main theories of long-range interactions have been applied to describing self-gravitating systems, two-dimensional vortices, systems with wave-particle interactions and charged plasmas. My work has been initially dedicated to extending the Lynden-Bell solution for the HMF model, generalizing the analysis to multi-level water-bag initial condition that could approximate continuous distributions. Then I concentrated to the formal characterization of the thermodynamics of QSS in the canonical statistical ensemble. By applying the standard theory, it is possible to measure negative “kinetic” specific heat. This latter unexpected property leads to a violation of the second principle of thermodynamics. Such result forces us to reconsider the applicability of the accepted thermodynamic theory to LR systems. Afterwards I studied, in the context of the α-HMF model, the persistence of the typical characteristics of the LR regime in the limit of short-range dynamics. The results obtained suggests a generalization of the definition of LR systems. The last chapter is dedicated to the characterization of a novel LR model, a natural extension of α-HMF and of potential applicability
Alkahtani, Badr. "Numerical solutions to the Navier-Stokes equations in two and three dimensions." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/numerical-solutions-to-the-navierstokes-equations-in-two-and-three-dimensions(be2b37ea-74af-432e-9ee5-193dd7b28d3b).html.
Повний текст джерелаLotfy, Mohamed Abdalla Mohamed Badreldin. "Sustainability of Enterprise Resource Planning (ERP) Benefits Postimplementation: An Individual User Perspective." ScholarWorks, 2015. https://scholarworks.waldenu.edu/dissertations/1316.
Повний текст джерелаBourne, Thomas. "Applications of the virial equation of state to determining the structure and phase behaviour of fluids." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/applications-of-the-virial-equation-of-state-to-determining-the-structure-and-phase-behaviour-of-fluids(809267a4-117a-49a2-9e36-44baa5f12860).html.
Повний текст джерелаNytra, Jan. "Řešení problémů akustiky pomocí nespojité Galerkinovy metody." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232174.
Повний текст джерелаJežková, Jitka. "Modelování dopravního toku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232180.
Повний текст джерелаCrouch, Matthew. "Luminosity performance limitations due to the beam-beam interaction in the Large Hadron Collider." Thesis, University of Manchester, 2018. https://www.research.manchester.ac.uk/portal/en/theses/luminosity-performance-limitations-due-to-the-beambeam-interaction-in-the-large-hadron-collider(287b2265-a67d-406a-8c94-0fc193e2401b).html.
Повний текст джерелаSkillen, Alex. "The overset grid method, applied to the solution of the incompressible Navier-Stokes equations in two and three spatial dimensions." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/the-overset-grid-method-applied-to-the-solution-of-the-incompressible-navierstokes-equations-in-two-and-three-spatial-dimensions(dc7ced62-3132-4404-a006-314766a93146).html.
Повний текст джерелаHudson, Joanna Louise. "Do diabetes cognitions and poor emotional health predict adherence to diabetes self-care? : a longitudinal test of the Common Sense Self-Regulation Model using Structural Equation Modelling." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/do-diabetes-cognitions-and-poor-emotional-health-predict-adherence-to-diabetes-selfcare-a-longitudinal-test-of-the-common-sense-selfregulation-model-using-structural-equation-modelling(c50b5f3a-0950-4862-9d6c-dd32021e74c2).html.
Повний текст джерелаDavis, Sarah Kate. "Multidimensional pathways to adolescent resilience : the case for emotional intelligence." Thesis, University of Manchester, 2012. https://www.research.manchester.ac.uk/portal/en/theses/multidimensional-pathways-to-adolescent-resilience-the-case-for-emotional-intelligence(80fa6787-a439-466b-8720-eadb8e2fd0e3).html.
Повний текст джерелаMohd, Damanhuri Nor Alisa. "The numerical approximation to solutions for the double-slip and double-spin model for the deformation and flow of granular materials." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/the-numerical-approximation-to-solutions-for-the-doubleslip-and-doublespin-model-for-the-deformation-and-flow-of-granular-materials(9986ac45-e48c-4061-a299-a80b2e665c3e).html.
Повний текст джерелаAndallah, Laek Sazzad Babovsky Hans. "A hexagonal collision model for the numerical solution of the Boltzmann equation /." 2005. http://www.gbv.de/dms/ilmenau/toc/48386739X.PDF.
Повний текст джерелаRichter, Christoph. "Proposal of new object-oriented equation-based model libraries for thermodynamic systems /." 2008. http://www.gbv.de/dms/bs/toc/568720776.pdf.
Повний текст джерелаCosta, Sérgio Luís Ferreira. "Development of advanced components for safety footwear - Integrated manufacturing methodology driven by impact events in mechanical design." Doctoral thesis, 2021. http://hdl.handle.net/1822/75989.
Повний текст джерелаA biqueira de proteção trata-se de um componente integrante do calçado de segurança como Elemento de Proteção Individual, com caraterísticas técnicas de resistência mecânica exigidas segundo um contexto normativo. Tal, condiciona o desenvolvimento do conceito de produto. O presente trabalho de investigação, em associação com o projeto cofinanciado S3 – Safety Slim Shoe, almejou o desenvolvimento de uma abordagem multidisciplinar para um novo modelo de alta performance com metas relevantes em modelação concetual e na redução de peso. O estudo de propriedades qualificadas de resistência ao impacto explorou o potencial de soluções combinadas de aços avançados de alta resistência com modelos geométricos para o endurecimento localizado. A resposta estrutural sob uma acentuada otimização de espessura foi avaliada, possibilitando assim, uma discussão orientada na procura de melhorias em modelos com capacidade de absorção de energia. Três materiais distintos UHSS ferrítico-martensíticos foram selecionados e desenvolveu-se a modelação numérica com foco na elevada deformação plástica e na influência de diferentes taxas de deformação. A relação matemática do comportamento dinâmico foi analisada através da aplicação de dois modelos fundamentais constitutivos: A equação de Cowper-Symonds e a equação de Johnson-Cook. Os resultados experimentais obtidos a partir de testes à tração segundo diferentes intervalos de taxa de deformação foram utilizados de forma a determinar parâmetros constitutivos para a caraterização dos materiais. Estes modelos de material foram incorporados em rotinas de simulação numérica de eventos dinâmicos com recurso ao software ANSYS (Explicit Dynamics). A análise com elementos finitos e o desempenho experimental em protótipos reais foram aplicados a dois modelos de biqueira S3, devidamente selecionados a partir do programa de desenvolvimento S3, segundo diferentes variantes combinadas de material e espessura, para uma avaliação de desempenho, a sua adequação e a precisão obtida. Os resultados numéricos e experimentais promoveram uma caracterização comportamental consistente com modelos de deformação que contribuíram, de forma crítica, para a maturidade de desempenho dos protótipos finais. Apresenta-se e valida-se assim um novo componente – biqueira de proteção – que atesta um rácio, melhorado e eficiente, de absorção de energia ao impacto por unidade de peso.
The safety toe cap is a key integrant component in the professional footwear from Personal Protective Equipment (PPE) with demanding strength and technical features according to normative requirements. These factors have been strongly conditioning the product concept. The presented research work in association with the co-financed project S3 – Safety Slim Shoe planned to develop an integrated approach for an ultimate high-performance toe cap model with significant milestones in slim design and weight saving. The study of crashworthiness properties was performed through impact-crash test conditions exploring the potential of applicant solutions by the combination of advanced high-strength steels and enhanced geometric stiffening models. The structural response for a significant thickness reduction was in-depth assessed and provided an evolved discussion for improvements in energy absorption capacity. Three different UHSS steels were selected and numerical modelling with extensive plastic deformation and strain-rate dependence was performed. The mathematical description of the dynamic plasticity behaviour was examined by applying two fundamental constitutive models: the Cowper-Symonds and Johnson-Cook constitutive equations. Experimental results of tensile testing at different strain rate ranges of interest were obtained to further determine fundamental constitutive parameters for the material characterization. These studied material models were incorporated and used in the numerical simulation of impact events using the explicit dynamics software ANSYS. FEA results were compared with the experimental test performance achieved by experimental toe cap prototypes made from a S3 prototype manufacturing program. In this context, two ultimate S3 toe cap models with different combinations of material and thickness optimization were considered and the accuracy and adequacy of the equivalent numerical predictions were evaluated. The comparison of the numerical and experimental results allowed to develop a consistent description of the material behaviour, the deformation pattern of structural models, and thus contributing with critical inputs for the final prototype development. A local stiffening toe cap solution with high energy absorption efficiency is presented and validated in this study.
Kyncl, Martin. "Numerické řešení třírozměrného stlačitelného proudění." Doctoral thesis, 2011. http://www.nusl.cz/ntk/nusl-311427.
Повний текст джерела