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Author: Siu-Wing Cheng Publisher: CRC Press ISBN: 1584887311 Category : Computers Languages : en Pages : 404
Book Description
Written by authors at the forefront of modern algorithms research, Delaunay Mesh Generation demonstrates the power and versatility of Delaunay meshers in tackling complex geometric domains ranging from polyhedra with internal boundaries to piecewise smooth surfaces. Covering both volume and surface meshes, the authors fully explain how and why thes
Author: Siu-Wing Cheng Publisher: CRC Press ISBN: 1584887311 Category : Computers Languages : en Pages : 404
Book Description
Written by authors at the forefront of modern algorithms research, Delaunay Mesh Generation demonstrates the power and versatility of Delaunay meshers in tackling complex geometric domains ranging from polyhedra with internal boundaries to piecewise smooth surfaces. Covering both volume and surface meshes, the authors fully explain how and why thes
Author: Volker Schumpelick Publisher: Springer Science & Business Media ISBN: 364218720X Category : Medical Languages : en Pages : 481
Book Description
Within a few years the surgical approach to abdominal wall hernias has focused on mesh-based treatment options. This dramatic change has set the stage for the third Suvretta meeting. All aspects of the mesh world have been discussed in detail by more than 50 international experts during an intense week resulting in an assessment of success and failures. After posing the question, whether meshes have defeated recurrences in the groin, epidemiological clinical data on recurrences were presented and show that this problem still exists. In particular, novel molecular biology-based research results stress the pathophysiological importance of a defective scarring process in these patients with inherent conclusions for future therapies. Regarding the variety existing meshes, there are already more than 100 different mesh devices, a comprehensive review of their chemical and textile properties was presented, with emphasis on their impact on biological responses. However, more than 90% of the participants articulated the need for improved mesh prosthesis, because their characteristic inflammatory and fibrotic foreign body reaction cause minor and major complications, e.g. pain, infections, adhesions, damage of the spermatic cord. The differentiated use of meshes in various procedures was discussed, including groin, incisional, parastomal, diaphragmal and hiatal hernias as well as their use in extended abdominal wall defects or in paediatric or plastic surgery. In summary this book summarizes the most up-to-date knowledge about meshes and hopefully serve as manual for both practical surgeons and scientists involved in the growing world of mesh.
Author: Daniel S.H. Lo Publisher: CRC Press ISBN: 041569048X Category : Technology & Engineering Languages : en Pages : 676
Book Description
Highlights the Progression of Meshing Technologies and Their Applications Finite Element Mesh Generation provides a concise and comprehensive guide to the application of finite element mesh generation over 2D domains, curved surfaces, and 3D space. Organised according to the geometry and dimension of the problem domains, it develops from the basic meshing algorithms to the most advanced schemes to deal with problems with specific requirements such as boundary conformity, adaptive and anisotropic elements, shape qualities, and mesh optimization. It sets out the fundamentals of popular techniques, including: Delaunay triangulation Advancing-front (ADF) approach Quadtree/Octree techniques Refinement and optimization-based strategies From the geometrical and the topological aspects and their associated operations and inter-relationships, each approach is vividly described and illustrated with examples. Beyond the algorithms, the book also explores the practice of using metric tensor and surface curvatures for generating anisotropic meshes on parametric space. It presents results from research including 3D anisotropic meshing, mesh generation over unbounded domains, meshing by means of intersection, re-meshing by Delaunay-ADF approach, mesh refinement and optimization, generation of hexahedral meshes, and large scale and parallel meshing, along with innovative unpublished meshing methods. The author provides illustrations of major meshing algorithms, pseudo codes, and programming codes in C++ or FORTRAN. Geared toward research centers, universities, and engineering companies, Finite Element Mesh Generation describes mesh generation methods and fundamental techniques, and also serves as a valuable reference for laymen and experts alike.
Author: Lisa Gansky Publisher: Penguin ISBN: 1101464615 Category : Business & Economics Languages : en Pages : 205
Book Description
A simple, powerful idea that's reinventing the way smart, adaptive companies do business. Most businesses follow the same basic formula: create a product or service, sell it, and collect money. What Lisa Gansky calls "Mesh" businesses throw this model out the window. Instead, these companies use social media, wireless networks, and data crunched from every available source to provide people with goods and services at the exact moment they need them, without the burden and expense of owning them outright. The Mesh gives companies a better understanding of what customers really want. Already, hundreds of successful Mesh companies are redefining how we interact with the people, goods, and services in our lives. These businesses are easier to start and spreading like wildfire, from bike sharing and home exchanges to peer-to-peer lending, energy cooperatives, and open source design. Consider: • ZipCar profits from streamlined car sharing • Kickstarter connects artists with funding from enthusiastic supporters • Music Gym makes finding a recording studio as easy as joining a gym The Mesh reveals the next wave of information-enabled commerce, showing readers how to plug in and profit.
Author: Dimitris Vartziotis Publisher: CRC Press ISBN: 0429680104 Category : Computers Languages : en Pages : 263
Book Description
High quality meshes play a key role in many applications based on digital modeling and simulation. The finite element method is a paragon for such an approach and it is well known that quality meshes can significantly improve computational efficiency and solution accuracy of this method. Therefore, a lot of effort has been put in methods for improving mesh quality. These range from simple geometric approaches, like Laplacian smoothing, with a high computational efficiency but possible low resulting mesh quality, to global optimization-based methods, resulting in an excellent mesh quality at the cost of an increased computational and implementational complexity. The geometric element transformation method (GETMe) aims to fill the gap between these two approaches. It is based on geometric mesh element transformations, which iteratively transform polygonal and polyhedral elements into their regular counterparts or into elements with a prescribed shape. GETMe combines a Laplacian smoothing-like computational efficiency with a global optimization-like effectiveness. The method is straightforward to implement and its variants can also be used to improve tangled and anisotropic meshes. This book describes the mathematical theory of geometric element transformations as foundation for mesh smoothing. It gives a thorough introduction to GETMe-based mesh smoothing and its algorithms providing a framework to focus on effectively improving key mesh quality aspects. It addresses the improvement of planar, surface, volumetric, mixed, isotropic, and anisotropic meshes and addresses aspects of combining mesh smoothing with topological mesh modification. The advantages of GETMe-based mesh smoothing are demonstrated by the example of various numerical tests. These include smoothing of real world meshes from engineering applications as well as smoothing of synthetic meshes for demonstrating key aspects of GETMe-based mesh improvement. Results are compared with those of other smoothing methods in terms of runtime behavior, mesh quality, and resulting finite element solution efficiency and accuracy. Features: • Helps to improve finite element mesh quality by applying geometry-driven mesh smoothing approaches. • Supports the reader in understanding and implementing GETMe-based mesh smoothing. • Discusses aspects and properties of GETMe smoothing variants and thus provides guidance for choosing the appropriate mesh improvement algorithm. • Addresses smoothing of various mesh types: planar, surface, volumetric, isotropic, anisotropic, non-mixed, and mixed. • Provides and analyzes geometric element transformations for polygonal and polyhedral elements with regular and non-regular limits. • Includes a broad range of numerical examples and compares results with those of other smoothing methods.
Author: Andrea Cangiani Publisher: Springer ISBN: 3319676733 Category : Mathematics Languages : en Pages : 133
Book Description
Over the last few decades discontinuous Galerkin finite element methods (DGFEMs) have been witnessed tremendous interest as a computational framework for the numerical solution of partial differential equations. Their success is due to their extreme versatility in the design of the underlying meshes and local basis functions, while retaining key features of both (classical) finite element and finite volume methods. Somewhat surprisingly, DGFEMs on general tessellations consisting of polygonal (in 2D) or polyhedral (in 3D) element shapes have received little attention within the literature, despite the potential computational advantages. This volume introduces the basic principles of hp-version (i.e., locally varying mesh-size and polynomial order) DGFEMs over meshes consisting of polygonal or polyhedral element shapes, presents their error analysis, and includes an extensive collection of numerical experiments. The extreme flexibility provided by the locally variable elemen t-shapes, element-sizes, and element-orders is shown to deliver substantial computational gains in several practical scenarios.
Author: Joshua A. Levine Publisher: Springer ISBN: 3642334636 Category : Computers Languages : en Pages : 178
Book Description
This book constitutes the refereed proceedings of the International Workshop on Mesh Processing in Medical Image Analysis, MeshMed 2012, held in Nice, France, in October 2012 in conjunction with MICCAI 2012, the 15th International Conference on Medical Image Computing and Computer Assisted Intervention. The book includes 16 submissions, 8 were selected for presentation along with the 3 plenary talks representative of the meshing, and 8 were selected for poster presentations. The papers cover a broad range of topics, including statistical shape analysis and atlas construction, novel meshing approaches, soft tissue simulation, quad dominant meshing and mesh based shape descriptors. The described techniques were applied to a variety of medical data including cortical bones, ear canals, cerebral aneurysms and vascular structures.
Author: Siu-Wing Cheng
Author: Siu-Wing Cheng
Author: Volker Schumpelick
Author: Asa Rand
Author: Daniel S.H. Lo
Author: Meshes
Author: Lisa Gansky
Author: 
Author: Dimitris Vartziotis
Author: Andrea Cangiani
Author: Joshua A. Levine