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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 34 for “"Asymptotes"”.
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Asymptotes in Straight Line Planes
Made available in DSpace on 2014-12-09T22:17:11Z (GMT). No. of bitstreams: 1 6408353.pdf: 4433782 bytes, checksum: 2ac2a81ab0e1d0d8e672e2423743e5b2 (MD5) Previous issue date: 1964
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Ein Verfahren der sequentiellen, konvexen Optimierung mit kombinierter Trust-Region- und Moving-Asymptotes-Stabilisierung zur Lösung nichtlinearer, restringierter Optimierungsprobleme
… das die Approximation der "Method of Moving Asymptotes" (MMA) mit einer Trust-Region-Strategie kombiniert. Als Trust-Region für diese Methode wird das Gebiet zwischen den MMA-Asymptoten abzüglich einem festen Sicherheitsabstand definiert, um die Beschränktheit der Approximationen zu …
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Applied Bayesian Networks
… Furthermore, we show that this accuracy quickly asymptotes and begins to show diminishing returns on large data sets.</p>
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Computational synthesis of wheel-based mechanisms via shape and topology optimization
… were supplied to the Method of Moving Asymptotes (MMA) optimizer routine.
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Topology and Printing Orientation Optimization of Orthotropic Material for Additive Manufacturing
… method is used with the method of moving asymptotes (MMA) as the optimizer. A detailed description of the formulation and sensitivity analysis are discussed. 2D structures are then analyzed in the numerical examples section. The method can also be used for 3D structures, as the formulation …
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Determination of Wear in Polymers Using Multiple Scratch Test.
… studied under multiple scratch test reached asymptotes at different scratch numbers.
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Topology optimization with manufacturable multi-material primitives
… (RAMP) method and employs the Method of Moving Asymptotes (MMA) as the gradient based optimizer. Three distinct object projection shapes are proposed, a horizontal, a vertical and a diagonal. The horizontal shaped inclusion enables designs such as, longitudinal reinforced concrete beam design of …
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Using shape memory alloy as dampers : design methodology
… system. Using the simulation results, various asymptotes on the design space are identified, and design methodologies for the three systems are proposed. As the determination of the system parameters is decoupled from the actual damper design, a design methodology to dimension and configure the …
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DEM simulated floor pressure induced by a granular column
… in a cylindrical container of granular material asymptotes exponentially to a value less than the weight of the material i.e., the pressure becomes independent of the fill height of the column. This phenomenon is investigated using discrete element simulations of inelastic, frictional spheres in …
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Development of a Variable Camber Compliant Aircraft Tail using Structural Optimization
… thin airfoil theory and the Method of Moving Asymptotes to optimize the shape of an airfoil tail for maximum trailing edge deflection. An objective function is formulated to maximize the trailing edge tip deflection subject to stress constraints. The optimal structure needs to be flexible to …
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Design of a morphing airfoil exhibiting bi-stability using topology optimization
… optimization algorithm, the Method of Moving Asymptotes (MMA), with a Solid Isoparametric Material Penalization (SIMP) scheme. The gradient information required for the optimization has been evaluated using an adjoint sensitivity formulation. Two different design domains, one with a structured …
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Design of functionally graded compliant mechanisms using topology optimization
… in FGM structures. The method of moving asymptotes (MMA) is used in conjunction with adjoint sensitivity analysis to find the optimal distribution of material properties. Functionally graded materials (FGMs) have material properties that vary based on spatial position. Here, FGMs are …
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Optimization of luminescent solar concentrators
… based on Globally Convergent Method of Moving Asymptotes (GCMMA). For this optimization, the objective function is the integrated flux on the solar cell and the design variable is the absorption coefficient of the dye which in turn gives the spatial dye distribution in the polymer matrix. The …
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Modeling moderately dense to dilute multiphase reacting flows
… is developed from first principles, which asymptotes to well-established EE and EL methods in limiting conditions. A smooth and dynamic transition criterion and a corresponding algorithm for conversion between EE and EL are developed. To use EE and EL in their respective regions of …
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Heterotic Braneworld Gravity
… axisymmetric metric. We obtain a solution which asymptotes the LOSW vacuum and resembles the black string. The solution looks like the Schwarzshild solution at a large distance, but the interbrane distance is not constant and the string becomes infinite as it reaches the Schwarzshild radius.
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Creep properties of source rocks using indentation : the role of organic matter on texture and creep rates
… reveals that the clay composites lie within two asymptotes defined by textures that relate to the connectivity of the porous kerogen phase. A comparison of creep microindentation data with triaxial creep tests validates creep indentation as a means to understand, quantify, and predict creep …
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Anderson localization of thermal phonons : anomalous heat conduction in disordered superlattices
… beyond this scale, the thermal conductivity asymptotes into the intrinsic, ordinary diffusive regime. However, there are special circumstances where this transition does not occur. In this Thesis, we demonstrate the anomalous scaling of thermal conductivity. The source of this anomaly is the …
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Numerical optimisation and theoretical analysis of complex microchannel heat exchangers
… condition. Theoretical analysis (intersection of asymptotes method) was carried out in the cooling channels (circular and rectangular). The theoretical analysis results indicated the presence of an optimal geometry among the various cross-sectional shapes, effectively cooling a volume with a …
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Cheetah of the Serengeti Plains: A home range analysis
… provide a novel method for determining kernel asymptotes. I challenge the notion of Serengeti cheetah as a migratory carnivore with analyses of site fidelity and objectively defined core ranges. I assess year to year and seasonal location shifts, showing that yearly shifting lessens as females …
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Asymptotic solutions of the nonlinear equations of conical shells
Electronic Thesis or Dissertation
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