Three Dimensional Space-Time Analysis Theory of Geotechnical Seismic Engineering - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Three Dimensional Space-Time Analysis Theory of Geotechnical Seismic Engineering write by Changwei Yang. This book was released on 2019-11-30. Three Dimensional Space-Time Analysis Theory of Geotechnical Seismic Engineering available in PDF, EPUB and Kindle. Written by respected experts, this book presents essential findings on the Wenchuan earthquake. It establishes a series of time–frequency analysis methods, and subsequently applies them to the layered site, slope, and earth-retaining wall. Further, it examines various cases and their solutions, and shares the results of numerous shaking-table tests and numerical simulations. As such, it is a valuable resource for researchers and engineers in the fields of geotechnical engineering and anti-seismic engineering.
Three-Dimensional Model Analysis and Processing
Three-Dimensional Model Analysis and Processing - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Three-Dimensional Model Analysis and Processing write by Faxin Yu. This book was released on 2011-02-03. Three-Dimensional Model Analysis and Processing available in PDF, EPUB and Kindle. With the increasing popularization of the Internet, together with the rapid development of 3D scanning technologies and modeling tools, 3D model databases have become more and more common in fields such as biology, chemistry, archaeology and geography. People can distribute their own 3D works over the Internet, search and download 3D model data, and also carry out electronic trade over the Internet. However, some serious issues are related to this as follows: (1) How to efficiently transmit and store huge 3D model data with limited bandwidth and storage capacity; (2) How to prevent 3D works from being pirated and tampered with; (3) How to search for the desired 3D models in huge multimedia databases. This book is devoted to partially solving the above issues. Compression is useful because it helps reduce the consumption of expensive resources, such as hard disk space and transmission bandwidth. On the downside, compressed data must be decompressed to be used, and this extra processing may be detrimental to some applications. 3D polygonal mesh (with geometry, color, normal vector and texture coordinate information), as a common surface representation, is now heavily used in various multimedia applications such as computer games, animations and simulation applications. To maintain a convincing level of realism, many applications require highly detailed mesh models. However, such complex models demand broad network bandwidth and much storage capacity to transmit and store. To address these problems, 3D mesh compression is essential for reducing the size of 3D model representation.
Three-dimensional Visual Analysis
Three-dimensional Visual Analysis - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Three-dimensional Visual Analysis write by Cheryl Akner-Koler. This book was released on 2000. Three-dimensional Visual Analysis available in PDF, EPUB and Kindle. "This book aims to strengthen an understanding of the sculptural possibilities of form and space through developing a visual language and structure that recognizes and gives priority to 3-dimensional visual perception. It is written so as to apply to both the active process of shaping 3-D form and space and analyzing any existing visual situation."-- Introduction.
Analysis of Three-dimensional Inviscid Supersonic Flow Between a Body and an Outer Wall
Analysis of Three-dimensional Inviscid Supersonic Flow Between a Body and an Outer Wall - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Analysis of Three-dimensional Inviscid Supersonic Flow Between a Body and an Outer Wall write by W. C. Armstrong. This book was released on 1976. Analysis of Three-dimensional Inviscid Supersonic Flow Between a Body and an Outer Wall available in PDF, EPUB and Kindle. The three-dimensional inviscid supersonic flow equations are solved for the flow over a body located within a duct. Numerical solutions are obtained by use of the reference plane method of characteristics technique. Results of the analysis are compared with experimental test body pressure distributions obtained with an off-design jet stretcher system. The analysis is sufficiently general so that a variety of internal flows may be predicted. A computer program listing and an example problem are presented.
Elastic Shape Analysis of Three-Dimensional Objects
Elastic Shape Analysis of Three-Dimensional Objects - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Elastic Shape Analysis of Three-Dimensional Objects write by Ian H. Jermyn. This book was released on 2022-05-31. Elastic Shape Analysis of Three-Dimensional Objects available in PDF, EPUB and Kindle. Statistical analysis of shapes of 3D objects is an important problem with a wide range of applications. This analysis is difficult for many reasons, including the fact that objects differ in both geometry and topology. In this manuscript, we narrow the problem by focusing on objects with fixed topology, say objects that are diffeomorphic to unit spheres, and develop tools for analyzing their geometries. The main challenges in this problem are to register points across objects and to perform analysis while being invariant to certain shape-preserving transformations. We develop a comprehensive framework for analyzing shapes of spherical objects, i.e., objects that are embeddings of a unit sphere in ℝ, including tools for: quantifying shape differences, optimally deforming shapes into each other, summarizing shape samples, extracting principal modes of shape variability, and modeling shape variability associated with populations. An important strength of this framework is that it is elastic: it performs alignment, registration, and comparison in a single unified framework, while being invariant to shape-preserving transformations. The approach is essentially Riemannian in the following sense. We specify natural mathematical representations of surfaces of interest, and impose Riemannian metrics that are invariant to the actions of the shape-preserving transformations. In particular, they are invariant to reparameterizations of surfaces. While these metrics are too complicated to allow broad usage in practical applications, we introduce a novel representation, termed square-root normal fields (SRNFs), that transform a particular invariant elastic metric into the standard L2 metric. As a result, one can use standard techniques from functional data analysis for registering, comparing, and summarizing shapes. Specifically, this results in: pairwise registration of surfaces; computation of geodesic paths encoding optimal deformations; computation of Karcher means and covariances under the shape metric; tangent Principal Component Analysis (PCA) and extraction of dominant modes of variability; and finally, modeling of shape variability using wrapped normal densities. These ideas are demonstrated using two case studies: the analysis of surfaces denoting human bodies in terms of shape and pose variability; and the clustering and classification of the shapes of subcortical brain structures for use in medical diagnosis. This book develops these ideas without assuming advanced knowledge in differential geometry and statistics. We summarize some basic tools from differential geometry in the appendices, and introduce additional concepts and terminology as needed in the individual chapters.
