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 20 of 148 for “"Complex Geometry"”.
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Computational Modelling of Biosensors of Complex Geometry /
… used to build models of biosensors with a complex structure, were systemized. The biosensor description language is proposed and the computer software, simulating an operation of biosensors in the one-dimensional space and a rectangular domain of the two-dimensional space, is developed. An …
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Algebraic Reconstruction Methods for Complex Geometry Components
… and perform high-resolution measurements on complex structures in Non Destructive Testing (NDT). The majority of the commercial cabinet systems are capable of acquisition and reconstruction of Cone Beam CT (CBCT) data utilising reconstruction algorithms such as the FDK, which are …
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Nondestructive evaluation of complex geometry advanced material components
… with the use of advanced materials in complex geometry critical components, it is necessary to develop methods for assuring their quality during or upon completion of manufacture. This presentation will examine the challenges associated with this task and discuss the feasibility of the …
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Hamiltonian Actions In Integral Kahler And Generalized Complex Geometry
… integral Kahler manifold preserved by the complexification a of the Hamiltonian group action. Guillemin and Sjamaar generalized this result to irreducible subvarieties preserved only by a Borel subgroup. In another direction, O'Shea and Sjamaar proved a convexity result for the moment map …
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Limiting Properties of Certain Geometric Flows in Complex Geometry
… geometric flows on vector bundles over complex manifolds. First we consider the case of a semi-stable vector bundle E over a compact Kahler manifold X of arbitrary dimension. We show that in this case Donaldson's functional is bounded from below. This allows us to construct an …
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Manufacture of Complex Geometry Component for Advanced Material Stiffness
… laminate design, and modeling of a part with complex geometry are explored. The ultimate goal of the research is to produce a model that accurately predicts part stiffness. This is validated with experimental results of composite parts, which refine material properties for use in a final …
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Atmospheric pollutant dispersion on industrial sites: concentration fluctuations in complex geometry terrains
L'abstract è presente nell'allegato / the abstract is in the attachment
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The applicability and accuracy of computer modeling in regards to acoustical scattering by a complex geometry
… face of a concrete masonry unit with an atypical geometry. The nature of the tests conducted would be in accordance with the AES-4id-2001 document which pertains to the Characterization and measurement of surface scattering uniformity. The uniformity of scattering can be analyzed and can give one …
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Aspects of Generalized Geometry: Branes with Boundary, Blow-ups, Brackets and Bundles
This thesis explores aspects of generalized geometry, a geometric framework introduced by Hitchin and Gualtieri in the early 2000s. In the first part, we introduce a new class of submanifolds in stable generalized complex manifolds, so-called Lagrangian branes with boundary. We establish a …
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Verification and validation of the geometrically exact beam theory with Legendre spectral finite elements for wind turbine blade analysis, A
… blades continue to get larger and have more complex geometry than ever before. Additionally, they are becoming lighter in proportion to their size. Lighter and larger wind turbine blades result in structures that are highly flexible. It is necessary to have computer aided engineering (CAE) …
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Computational modeling and simulation of composite materials based on tomographic images
… of such materials is complicated by their complex geometry and heterogeneous material properties. In particular, conventional finite element analysis requires highly refined, unstructured meshes that conform to the complex geometry, resulting in high computational cost. We take a different …
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Interlaced Frames
… of using repeated members to generate complex geometry, specifically using alternating beams of uniform dimension to create both structure and building envelope. These beams are placed according to a single, custom-built "generator" element and then clad using as few custom shapes as …
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FINITE ELEMENT AND IMAGING APPROACHES TO ANALYZE MULTISCALE ELECTROTHERMAL PHENOMENA
… the temperature profile in devices and ICs with complex geometry. By comparing theory and experiment, important material parameters and device characteristics are extracted. In this work we combine TR and FEM with image blurring/reconstruction techniques to improve electrothermal characterization …
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The reconstruction and FEA analysis of the decommissioned WWII era destroyer USS Cassin Young in the SolidWorks environment
… encountered in the meshing and analysis of the complex geometry of the ship hull.
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On the geometry of the Strominger system
… of partial differential equations describing the geometry of compactifications of heterotic superstrings with flux. Mathematically it can be viewed as a generalization of Ricci-flat metrics on non-Kshler Calabi-Yau 3- folds. In this thesis, I will present some explicit solutions to the Strominger …
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Higher Rank Bergman Kernels on Compact Riemann Surfaces
Let X be a compact Riemann surface equipped with a real-analytic Kahler form omega and let E be a holomorphic vector bundle over X equipped with a real-analytic Hermitian metric h. Suppose that the curvature of h is Griffiths-positive. We prove the existence of a global asymptotic expansion in …
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Survey of Generalized Contact Structures
A generalized complex structure, as introduced by N. Hitchin, is a common generalization of both symplectic and complex structures. Generalized complex geometry provides a natural geometric framework to understand certain recent developments in string physics, and has developed into an active area …
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Efficient Thermo-Mechanical Model for Solidification Processes and Its Applications in Steel Continuous Casting
… beam blank casting, known for a very challenging geometry, is solved for the simultaneous evolution of deformation, temperature, and stress. Finally, a large scale 3D simulation of a thin slab caster with a funnel, first of that kind ever conducted, is performed to correctly reproduce the 3D …
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Electrostatic simulations of interactions between a scanning probe and quantum Hall liquid
… of donors in magnetic field. In order to model complex geometry systems, but also optimize running times and memory allocation we developed two electrostatic simulators one for cylindrically symmetric and second for arbitrary 3D geometries. Our electrostatic solver was based on successive over …
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Generative opponents : a new architecture for native soil
… that were developed to solve the building's complex geometry with locally available methods.
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