Global ETD Search
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 12 of 12 for “"first variation"”.
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Plastic buckling of initially imperfect stiffened cylinders in axial compression
… is examined by making use of a functional whose first variation is zero when two solutions to the problem are possible. This leads to an eigenvalue problem, the eigenvalue being the critical compressive load and the eigenfunction being the corresponding buckling mode. Results are presented or …
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IMPLEMENTATION OF A VERTICALLY INTEGRATED ICE SHEET MOMENTUM BALANCE MODEL
… and low-level discussion of its derivation, variation and discretization. The model utilizes the Finite Element Method to discretize variational forms of the first variation arising from the Galerkin method and for vertically-integrated Stokes flow. The model employs a hybridization of two …
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IMPLEMENTATION OF A VERTICALLY INTEGRATED ICE SHEET MOMENTUM BALANCE MODEL
… and low-level discussion of its derivation, variation and discretization. The model utilizes the Finite Element Method to discretize variational forms of the first variation arising from the Galerkin method and for vertically-integrated Stokes flow. The model employs a hybridization of two …
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Relating diameter and mean curvature for varifolds
… least two in some Euclidean space such that the first variation is locally bounded, the total variation is absolutely continuous with respect to the weight measure, the density of the weight measure is at least one outside a set of weight measure zero and the generalized mean curvature is locally …
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Modeling and solving variations of the Network Loading Problem
We examine three variations of a class of network design problems known as Network Loading Problems (NLP). For'each variation we develop a tailored branch and bound solution approach equipped with heuristic procedures and problem specific cutting planes. The first variation formulates a logistics …
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Gluing Z₂-Harmonic Spinors on 3-Manifolds
… operator. It is shown that the component of the first variation of the Z₂-Dirac operator with respect to deformations of the singular set in this obstruction space is an elliptic pseudo-differential operator of order 1/2. Consequently, the resulting deformation theory is Fredholm up to a loss of …
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Understanding computation through low-dimensional dynamics with recurrent neural networks
… this method by creating networks that implement variations of a ring attractor, a classic model of representation in neural circuits. The first variation produces a specific drift-diffusion process over the attractor, similar to that proposed in a working memory model. As a second variation, I …
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Hybrid Active/Passive Models with Frequency Dependent Damping
… the passive and active elements. In the first variation, the active and passive element are constrained to the same side of the beam. The other variation allows one of the treatments to be placed on the opposite side of the beam. A comparison will be made with pure active, PCLD, ACLD and …
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Morphometric study of long bones histology
… bone remodelling mechanism that results in the variation in the shape, size and organization of bone microstructural characteristics. The majority of current literature in this area have been conducted with little consideration given to the variability of sampling sites, different skeletal …
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Quantitative Genetics of Life History Microevolution in the Cayo Santiago Rhesus Macaques (Macaca Mulatta)
… and environmental influences on life history variation in female primates. The results are discussed in terms of understanding primate life history and sociality through analyses targeting variation within populations rather than interspecific comparisons. Population patterns of genetic …
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Revealing complexities within flat-water kayaking: injury prevention and biomechanical analysis
… bodies, making them susceptible to injury. The first portion of this thesis is dedicated to investigating whether a supervised, corrective pre-habilitation programme of the kinetic chain, conducted twice a week for 10 weeks, would reduce these predisposing factors. A group of 19 marathon …
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Tense and mood variation in Spanish nominal subordinates: The case of Peruvian varieties
… Andes to the coast and to the capital since the first half of the 20th century. Considering this particular sociolinguistic situation, the dissertation aims to study the unique variation phenomena of the region and explore the contact hypothesis regarding its origin. The study focuses on two …