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.
Results
Showing 1 to 20 of 21 for “"Point distribution"”.
-
A physics-based adaptive point distribution method for computational domain discretization
… presented which together generate well-spaced point distributions applied to curves, surfaces, and the volume of a computational domain. The first is a force equilibrium simulation which applies a simplified direct solution of the equations of motion at each node. Inter-nodal pair forces are …
-
Automated Adaptive Data Center Generation For Meshless Methods
… as the required problem setup (i.e. collocation point distribution) is still significant and far from automated. The distribution of points still closely resembles the nodes of finite volume-type meshes and the free parameter, c, of the radial-basis expansion functions (RBF) still must be …
-
A meshfree method for the Poisson equation with 3D wall-bounded flow application
… often needs to be solved on an irregular point distribution. Currently, mainly unstructured mesh-based approaches are used. Meshfree methods present a way to approximate differential operators on unstructured point clouds without the need for mesh generation. In this thesis, a 3d meshfree …
-
3D tooth surface reconstruction
… analysis, leading to the creation of a point distribution model (PDM). During the reconstruction process, an automatic rigid registration (possibly preceded by a manual one) is realized to align the model with the target, and the PDMa??s parameters are optimized to transform the target …
-
Hydrothermal liquefaction for energy recovery from high-moisture waste biomass
… proton and carbon speciation, molecular weight distribution, boiling point distribution) were compared for the varying feedstocks as well as with published results for petroleum crudes and tar sand bitumens. Results demonstrated that although the biocrude oils displayed similar higher heating …
-
IP multicast video with smart network caches
… data throughput, and reliability in a multi-point distribution environment. At the same time, there are the possibilities for more interaction and cooperative sharing of contents amongst hosts on the network. IP multicast addresses the bandwidth scalability issue by providing an efficient …
-
Isotropy criteria and algorithms for data clustering
Given a set of points, the goal of data clustering is to group them into clusters, such that the internal homogeneity of points within each cluster contrasts to inter-cluster heterogeneity. Over the last fifty years, many methods for data clustering have been developed in diverse scientific …
-
An Introduction to Local Multipoint Distribution Services with an Investigation of the Effects of Vegetation on the Radio Channel
… an overview of issues pertinent to Local Multi-point Distribution Services (LMDS). The reader will first learn what LMDS is and then review the system architectures that are made available for LMDS technologies. After summarizing the basics of LMDS, we will compare it with some competing …
-
Outbound transportation collaboration- Do It Yourself (DIY)
… truckload (MSTL) consolidation and pool point distribution.
-
Symmetry-breaking motility and RNA secondary structures
… we represent RNA sequences and structures by points in a high-dimensional "contact space." Designability is probed by investigating the distribution of sequence and structure points within this space. We find that one-dimensional projections of the sequence point distribution approach …
-
Kinetics and reactor design in the pyrolysis of tar sands
… 17 to 20 kcal/gmol.</p> <p>Data for the boiling point distribution of the products was consistent with a change of mechanism from vaporization to pyrolysis as the samples are heated. Higher heating rates gave a lower boiling product, with less contained sulfur, arsenic, and nitrogen. A …
-
Modeling of Aortic Valve Anatomic Geometry from Clinical Multi Detector-Row Computed Tomography Images
… model. We used this landmarking method to create point distribution models of the aortic valve from patient data. Future work would include completion of the 3D SSM implementation using active appearance models.
-
The Traveling Salesman Problem for Systems with Dynamic Constraints
… Stochastic TSP (DSTSP), asks: if the target points are distributed randomly, how does the length of the shortest tour (either in expectation or with high probability) grow with the number 𝑛 of targets? This problem has been studied for a variety of common vehicle models, as well as certain …
-
Höherdimensionale Modelle zur Segmentierung biologischer Strukturen
… Shape knowledge from an automatically generated point distribution model is used to compute directed shape forces. The combination of all forces results in a segmentation result even if an initial contour is not given. The intersection of simplexes forms an inconsistency of the contour. This …
-
Automatic Alignment of 3D Multi-Sensor Point Clouds
Automatic 3D point cloud alignment is a major research topic in photogrammetry, computer vision and computer graphics. In this research, two keypoint feature matching approaches have been developed and proposed for the automatic alignment of 3D point clouds, which have been acquired from different …
-
Partial Upgrading of Lignocellulosic Bio-Oil via Deep Catalytic Hydrotreating
… residue reduction, viscosity, and boiling point distribution of the product, but it improves the degree of deoxygenation and molar H/C ratio. Moreover, at temperatures higher than 350 C, hydrocracking along with hydrogenation notably improved the residue conversion, viscosity and MCR …
-
Integrated Sinc Method for Composite and Hybrid Structures
… by the finite element method. An adaptive Sinc point distribution technique was implemented for the delamination analysis which significantly improved the methods accuracy for the present problem. Delamination of a GLARE, plane-strain specimen was also analyzed using the Integrated Local …
-
Aspects of modelling geographic information in geodesy and geodynamics
… information from the geodetic and geodynamic viewpoints. The data for our studies were acquired by a variety of methods: laser scanning, levelling and satellite positioning. The major subject of this dissertation is quality and its measures. We study various modelling approaches on geodetic data …
-
Spectral Geometry for Structural Pattern Recognition
… vector space and to study the properties of the point distribution that results from the embedding. This is a problem that arises in a number of areas including manifold learning theory and graph-drawing. In this thesis, our first contribution is to investigate the heat kernel embedding as a …
-
Upgrading hydrothermal liquefaction biocrude oil from wet biowaste into transportation fuel
… MJ/kg and the amounts of the light oil (boiling point of 100-300°C) were increased from 31wt.% to 49 wt.%. In contrast, GC-MS analyses of pretreated algal biocrude oil and aqueous products demonstrate that the ash content promoted denitrogenation, catalyzed the formation of hydrocarbons, and …
Page 1 of 2