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 19 of 19 for “"grid structure"”.
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Grid Structure and Space
… challenge the possibility of the architectural structure.After the fire of 1871 in Chicago, there were many incentives to convince Chicago architects to use steel as the material in grid structure buildings. For example, rising real estate prices, the advent of the safety elevator and …
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Self Adaptive Methods for Parabolic Partial Differential Equations
… to such a solution is based on a mesh or grid structure that is best when very fine in the active region and coarse in the calm region.
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Crossing Number Bounds of Mosaic Knot Diagrams
… begin drawing mosaic diagrams that have a more grid-like structure and no crossings. This grid structure of a knot is similar to a ``grid diagram" which is equivalent to the arc presentation of a knot diagram. We generate grid diagrams using pairs of permutations from the group $((S_{n-1}\times …
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Flexible transit network design with and without branching under spatially heterogeneous demand
… the benefits of Daganzo (2010a) hybrid structure over grid structure under heterogeneous demand with flexible routes; and (ii) to investigate the benefits of allowing branching local tubes within the transit system. For (i), we derive the agency and user cost metrics of the proposed …
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Experimental verification and development of structural identification techniques on a grid
… system identification methods for large flexible structures. Proposed space missions for the future include the deployment of large flexible structures, e.g., NASA's proposed space station. These structures must be controlled to maneuver the structure to desired locations and to suppress unwanted …
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Transactive Distribution Grid with Microgrids Using Blockchain Technology for the Energy Internet
The changing nature of the energy grid in recent years has prompted key stakeholders to think of ways to address incoming challenges. Transactive energy is an approach that promises to dynamically align active grid elements coming up in the previously inactive consumers' side to achieve a reliable …
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A Grid-Based Approximation Algorithm for the Minimum Weight Triangulation Problem
… our candidate solution, our algorithm uses grids to partition edges into levels by increasing weights, so that edges with similar weights appear in the same level. We incrementally triangulate the point set by constructing a growing partial triangulation for each level, introducing edges in …
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A forma do privilégio: renda, acessibilidade e densidade em Natal-RN
… and HANSON, 1984) resulting from the urban grid structure. It endeavors to identify a functional organizing principle regarding the intra-urban space of Natal capital city of the state of Rio Grande do Norte, the research focus. In order to achieve this, census data as well as syntactic data …
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Efficient algorithm for online N - 2 power grid contingency selection
… massive blackouts and disturbances in the power grid. Such outages affect millions of people and cost the world economy billions of dollars annually. The impact of the N - k contingencies is anticipated to grow as the electrical power grid becomes increasingly more loaded. As the result power …
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Digital twin volume registration for Voxel-based closed-loop machining systems
… of registering and machining near-net-shape structures and rough castings. Through the implementation of a Euclidean distance transform and variance calculation, an intensity-based similarity metric is demonstrated over a discrete voxel domain driven by a metaheuristic registration algorithm. …
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Computational Bayesian inference using low discrepancy sequences
… space is explored and points are laid out in a grid structure. These points are used in some numerical integration scheme for which marginal posterior distributions are computed. The main drawback is that the number of points increase exponentially with the number of hyperparameters. The grid is …
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Modeling Temporal and Spatial Data Dependence with Bayesian Nonparametrics
… more challenging to model due to its spatially-grid structure and often large computational cost of analysis. As a non-parametric clustering prior, the logistic stick-breaking process introduced here imposes the belief that proximate data are more likely to be clustered together. Multiple …
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Arrangement of minors in the positive Grassmannian
… matrices. More precisely, we investigate the structure of equalities and inequalities between the minors. We show that arrangements of equal minors of largest value are in bijection with sorted sets, which earlier appeared in the context of alcoved polytopes and Gröbner bases. Maximal …
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Energy-efficient system design for mobile processing platforms
… An efficient implementation of the 3D bilateral grid structure supports a wide range of non-linear filtering applications, including high dynamic range imaging, low-light enhancement and glare reduction. The processor, implemented using 40 nm CMOS technology, enables real-time processing of HD …
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Combinatorial Problems on the Chessboard
… cells, consideration is given to an entirely new grid structure consisting of hexagonal cells. The final results of this thesis pertain to a tight bound on the independence problem for the bishop piece on the regular hexagonal grid.<br/><br/>In the conclusion to this thesis, the scope of the …
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Electrohydrodynamic Microfabricated Ionic Wind Pumps for Electronics Cooling Applications
… which a single emitting tip is positioned. A grid structure on the collector electrodes enhances the overall heat transfer coefficient and facilitates an IC compatible and batch process. The main purpose of the work presented here is thus to investigate whether an optimized ionic wind pump …
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DGM-FD: A Finite Difference Scheme Based on the Discontinuous Galerkin Method
… and effective adaptability to different mesh structures. Finite difference and finite element methods are commonly used numerical schemes in CAA. Finite difference methods have the advantages of ease of use as well as high order convergence, but often require a uniform grid, and stable …
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Influence of Consolidation and Interweaving on Compression Behavior of IsoTruss™ Structures
<p>Composite IsoTruss™ structures incorporate intersecting longitudinal and helical members. At the intersections, the fiber tows can be interwoven to achieve mechanical interlocking for increased joint integrity. Interlocking introduces gaps and curvilinear fiber paths similar to the crossovers in …
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Geometric Algorithms and Data Structures for Simulating Diffusion Limited Reactions
… The algorithm presented makes use of a sparse grid structure, with one grid per species per radiochemical reactant used to group particles in a way that makes the nearest neighbor search efficient, where particles are stored only once, yet are represented in grids of all appropriate reaction …