Global ETD Search

11	Numerical approximation to the solution of multi-phase stefan-type problems Kelly, William B. 12 1900 (has links) No description available. Boundary value problems Variational principles
12	The development of design metrics for remanufacturing Hammond, Richard C., II 05 1900 (has links) No description available. Remanufacturing Design, Industrial Variational principles
13	Variational method for prediction of acoustic radiation from vibrating bodies Wu, Xiao-Feng 05 1900 (has links) No description available. Acoustic radiation pressure Variational principles
14	Analytical and numerical studies in nonholonomic dynamical systems Driessen, Brian James 05 1900 (has links) No description available. Dynamics Mechanics, Analytic Variational principles
15	Finite element implementation of a new variational principle for acoustic radiation from a circular disk DiMarco, John Stephen 12 1900 (has links) No description available. Variational principles Acoustic radiation pressure
16	An investigation of passive actuation for trajectory control Davis, Hurley Thomas, Jr. 08 1900 (has links) No description available. Actuators Automatic control Variational principles
17	Elastohydrodynamic simulator Bakman, Aleksandr Israel 05 1900 (has links) No description available. Hydroelasticity Lubrication and lubricants Variational principles
18	Vibration and shock isolation through use of passive, nonlinear mounts Eshleman, Eric D. 12 1900 (has links) No description available. Vibration Shock isolation Variational principles
19	Quelques thèmes en l'analyse variationnelle et optimisation / Some topics in variational analysis and optimization Nguyen, Le Hoang Anh 23 February 2014 (has links) Dans cette thèse, j’étudie d’abord la théorie des [gamma]-limites. En dehors de quelques propriétés fondamentales des [gamma]-limites, les expressions de [gamma]-limites séquentielles généralisant des résultats de Greco sont présentées. En outre, ces limites nous donnent aussi une idée d’une classification unifiée de la tangence et la différentiation généralisée. Ensuite, je développe une approche des théories de la différentiation généralisée. Cela permet de traiter plusieurs dérivées généralisées des multi-applications définies directement dans l’espace primal, tels que des ensembles variationnels,des ensembles radiaux, des dérivées radiales, des dérivées de Studniarski. Finalement, j’étudie les règles de calcul de ces dérivées et les applications liées aux conditions d’optimalité et à l’analyse de sensibilité. / In this thesis, we first study the theory of [gamma]-limits. Besides some basic properties of [gamma]-limits,expressions of sequential [gamma]-limits generalizing classical results of Greco are presented. These limits also give us a clue to a unified classification of derivatives and tangent cones. Next, we develop an approach to generalized differentiation theory. This allows us to deal with several generalized derivatives of set-valued maps defined directly in primal spaces, such as variational sets, radial sets, radial derivatives, Studniarski derivatives. Finally, we study calculus rules of these derivatives and applications related to optimality conditions and sensitivity analysis. Analyse variationnelle Variational analysis 515
20	Hybrid macro-particle moment accelerator tracking algorithm Jung, Paul Matthew 27 August 2020 (has links) A particle accelerator simulation which straddles the gap between multi-particle and moment codes is derived. The hybrid approach represents the beam using macro-particles which contain discrete longitudinal coordinates and transverse second moments. The discretization scheme for the macro-particles is derived using variational principles, as a natural extension of well known variational approaches. This variational discretization allows for exact transverse emittance conservation. The electrostatic self-potential is discrete in the longitudinal direction and solved semi-analytically in the transverse direction using integrated Green’s functions. The algorithm is implemented and tested against both a moment and multi-particle code. / Graduate Particle Accelerator Simulation variational principles

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