نتایج جستجو برای: bem theory

تعداد نتایج: 794186  

Journal: :Revista Letras Raras 1969

Journal: :Teocomunicação 2020

2004
Stéphan T. Grilli Stéphane Abadie

This research deals with the validation of fluid dynamic models, used for simulating shoaling and breaking solitary waves on slopes, based on experiments performed at the Ecole Supérieure d’Ingénieurs de Marseille’s (ESIM) laboratory. A separate paper, also presented at this conference, reports on experiments. In a first part of this work, a fully nonlinear potential flow model based on a Bound...

2011
ELENA SUNDKVIST Elena Sundkvist

The ultimate goal of this research is to construct a hybrid model for sound propagation in layered underwater environments with curved boundaries by employing a di↵erential formulation for inhomogeneous layers and a boundary integral formulation for homogeneous layers. The discretization of the new hybrid model is a combination of a finite di↵erence method for the Helmholtz equation for inhomog...

2017
Lawrence D. Frank Eric H. Fox Jared M. Ulmer James E. Chapman Suzanne E. Kershaw James F. Sallis Terry L. Conway Ester Cerin Kelli L. Cain Marc A. Adams Graham R. Smith Erica Hinckson Suzanne Mavoa Lars B. Christiansen Adriano Akira F. Hino Adalberto A. S. Lopes Jasper Schipperijn

BACKGROUND Advancements in geographic information systems over the past two decades have increased the specificity by which an individual's neighborhood environment may be spatially defined for physical activity and health research. This study investigated how different types of street network buffering methods compared in measuring a set of commonly used built environment measures (BEMs) and t...

2014
Michael S. Franklin Stephen L. Baumgart Jonathan W. Schooler

INTRODUCTION Although claims of precognition have been prevalent across human history, it is no surprise that these assertions have been met with strong skepticism. Precognition, the ability to obtain information about a future event, unknowable through inference alone, before the event actually occurs, conflicts with the fundamental subjective experience of time asymmetrically flowing from pas...

2016
WoonSeong Jeong Kee Han Kim Muge Mukaddes Darwish

The development of separate building performance simulation tools has brought about a significant need for the integration of multi-domain simulations that would enable multiple building performance analyses to be conducted from a single building model. Insufficient data integration between the tools and Building Information Modeling (BIM) currently prevents the efficient production of comprehe...

Journal: :Formal Methods in System Design 1997
Shin-ichi Minato Fabio Somenzi

Recently, there has been a lot of works on LSI design systems using Binary Decision Diagrams (BDDs), which are efficient representations of Boolean functions. We previously developed a Boolean expression manipulator, that can quickly calculate Boolean expressions by using BDD techniques. It has greatly assisted us in developing VLSI design systems and solving combinatorial problems. In this pap...

2005
Yijun Liu Y. J. LIU

A new fast multipole boundary element method (BEM) is presented in this paper for large-scale analysis of two-dimensional (2-D) elastostatic problems based on the direct boundary integral equation (BIE) formulation. In this new formulation, the fundamental solution for 2-D elasticity is written in a complex form using the two complex potential functions in 2-D elasticity. In this way, the multi...

2004
Z. Y. Qian Z. D. Han P. Ufimtsev S. N. Atluri

The weak-form of Helmholtz differential equation, in conjunction with vector test-functions (which are gradients of the fundamental solutions to the Helmholtz differential equation in free space) is utilized as the basis in order to directly derive non-hyper-singular boundary integral equations for the velocity potential, as well as its gradients. Thereby, the presently proposed boundary integr...

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