Filters








54,147 Hits in 8.1 sec

Page 4334 of Mathematical Reviews Vol. , Issue 96g [page]

1996 Mathematical Reviews  
Symbolic for- mulas for surface and volume integration are given.  ...  Summary: “A spectral element scheme is presented for the solution of second- and fourth-order problems in two and three space di- mensions.  ... 

Hybrid Symbolic and Numeric Operators as Tools for Analysis of Freeform Surfaces [chapter]

Gershon Elber, Elaine Cohen
1993 Modeling in Computer Graphics  
A small set of tools is used to symbolically compute surfaces representing curvature, twist and other properties. These surfaces are then analyzed using numeric techniques.  ...  Freeform surfaces are commonly used in Computer Aided Geometric Design, so accurate analysis of surface properties is becoming increasingly important.  ...  We s h o w that a combination of symbolic and numeric operators can be used to globally represent, approximate, or analyze these property surfaces.  ... 
doi:10.1007/978-3-642-78114-8_17 dblp:conf/ifip5-10/ElberC93 fatcat:wpll43uedjaa5c7224bdmwhtha

Symbolic-Numeric Methods for Problem Solving in CPS (Dagstuhl Seminar 16491)

Sergiy Bogomolov, Martin Fränzle, Kyoko Makino, Nacim Ramdani, Marc Herbstritt
2017 Dagstuhl Reports  
Reflecting the fundamental role numeric and mixed symbolic-numeric arguments play in the analysis, decision making, and control of cyber-physical processes, this seminar promoted crossfertilization between  ...  means of error-propagation analysis; numerical and/or symbolic methods such as verified integrations, interval methods and arithmetic constraint solving; reactive and in-advance planning and optimization  ...  Both, symbolic and numeric techniques are currently investigated in order to tackle systems with a large number of stochastic events.  ... 
doi:10.4230/dagrep.6.12.1 dblp:journals/dagstuhl-reports/BogomolovFMR16 fatcat:sydj4slvefa7boehai7gpnfupm

On-Line Symbolic Constraint Embedding for Simulation of Hybrid Dynamical Systems

R. Brent Gillespie, Volkan Patoglu, Islam I. Hussein, E. R. Westervelt
2005 Multibody system dynamics  
We have developed a MATLAB r toolbox for symbolically generating equations of motion using Kane's method and prototyped a simulator with on-line constraint embedding and demonstrated the design in three  ...  We apply nomenclature developed for hybrid dynamical systems to describe the system with changing constraints and to distinguish the roles of the forward dynamics solver, a collision detector, and an impact  ...  But here the projection is carried out using symbolic operations (realizing a dot product) in contrast to numerical operations and is called embedding the constraints.  ... 
doi:10.1007/s11044-005-0269-0 fatcat:z35tvctrkze5xjdazgj62tnnmi

Page 1804 of Mathematical Reviews Vol. , Issue 98C [page]

1998 Mathematical Reviews  
In such cases, geometric sequences have been used successfully as the basis for defining difference operators up to second order which give excellent approximations.  ...  Summary: “A more general and unified form of the Hubbell 65 NUMERICAL ANALYSIS rectangular source integral is defined as eo “ a, B,y b 2\H 2 Aga v x a 3 J l-— > Tes: wrens d.  ... 

Fast and efficient narrow volume reconstruction from scattered data

Yibao Li, Junseok Kim
2015 Pattern Recognition  
The proposed numerical method, based on operator splitting techniques, can employ a large time step size and exhibits unconditional stability.  ...  We perform a number of numerical experiments in order to demonstrate the efficiency of this method.  ...  The authors are grateful to the reviewers whose valuable suggestions and comments significantly improved the quality of this paper.  ... 
doi:10.1016/j.patcog.2015.06.014 fatcat:hgewj4rqpze6bcpwicehqqly6a

Operational Automatic Remote Sensing Image Understanding Systems: Beyond Geographic Object-Based and Object-Oriented Image Analysis (GEOBIA/GEOOIA). Part 2: Novel system Architecture, Information/Knowledge Representation, Algorithm Design and Implementation

Andrea Baraldi, Luigi Boschetti
2012 Remote Sensing  
In the present second part of this work, a novel hybrid (combined deductive and inductive) RS-IUS architecture featuring a symbolic deductive pre-attentive vision first stage is proposed and discussed  ...  To the best of these authors' knowledge, this is the first time a symbolic syntactic inference system, like SIAM™, is made available to the RS community for operational use in a RS-IUS pre-attentive vision  ...  These authors also wish to thank the Editor-in-Chief, Associate Editor and reviewers for their competence, patience and willingness to help.  ... 
doi:10.3390/rs4092768 fatcat:kkw356lwxnc7dicrum27vdxvbi

Hybrid RF/visible light communication in downlink wireless system

Tharindu D. Ponnimbaduge Perera, Akashkumar Rajaram, Sangay Chedup, Dushantha Nalin K. Jayakody, Bin Chen
2018 International Journal of Engineering & Technology  
Numerical results show that the proposed hybrid RF-VLC system is superior to conventional lone RF cooperative system.  ...  This study presents a downlink communication of a hybrid RF-VLC, where the signal received through RF channel by a relay is decoded and the symbols are converted into an electrical signals.  ...  Numerical results In this section, we present numerical results obtained to validate the above theoretical analysis.  ... 
doi:10.14419/ijet.v7i2.28.12943 fatcat:shongjpcszf4nl7ficiufiyicu

Page 4255 of Mathematical Reviews Vol. , Issue 95g [page]

1995 Mathematical Reviews  
This is done first for pseudodifferential operators with constant coefficients and then for operators with variable symbols.  ...  The second strategy is related to the atomic decomposition of Calderon-Zygmund oper- ators.  ... 

Natural frequency analysis of shells of revolution based on hybrid dual-mixed hp-finite element formulation

Balázs Tóth
2021 Applied Mathematical Modelling  
stable numerical results for both h-and p-approximation.  ...  Please cite this article as: Balázs Tóth, Natural frequency analysis of shells of revolution based on hybrid dual-mixed hp-finite element formulation, Applied Mathematical Modelling (2021), doi: https:  ...  Table 2 : 2 Non-zero coordinates of the second fundamental form and the mid-surface Christoffel symbols of second kind for conical-, spherical and hyperbolic shell.  ... 
doi:10.1016/j.apm.2021.06.001 fatcat:znbst7fqt5frbi7ehvfwxdb7ba

Multizone Chimera Algorithm for Solving the Full-Potential Equation

Terry L. Holst
1998 Journal of Aircraft  
Two spatial discretization variations are presented; one using a hybrid first-order/ second-order-accurate scheme and the second using a fully second-order-accurate scheme.  ...  Hybrid/Second-Order and Single/Two-Zone Scheme Comparisons In this section differences in accuracy between the hybrid and second-order differencing schemes and between the sin- Fig. 4 Mach number contours  ... 
doi:10.2514/2.2339 fatcat:3nvtikrfv5hvtpifendvv4bkva

A Matlab Genetic Programming Approach to Topographic Mesh Surface Generation [chapter]

Katya Rodriguez, Rosalva Mendoza
2011 Engineering Education and Research Using MATLAB  
MATLAB is a software package used primarily in the field of engineering for signal processing, numerical data analysis, modeling, programming, simulation, and computer graphic visualization.  ...  This surface generation problem is then formulated as symbolic regression.  ... 
doi:10.5772/22376 fatcat:czyyrgox5zbtzcpvrjmptc62ou

Anisotropic Metamaterials Filled Rectangular Metallic Waveguides Propagation Study and Analysis

Nizar Tahri
2021 Journal of Engineering Research and Reports  
When the Galerkin method is used, the matrix of diffraction of the junction is obtained directly.  ...  We successfully manipulate metal rectangular waveguide filters with both geometrical and physical discontinuity.  ...  Hybridization Analysis Using NMVM and Finite Element Methods We consider a set of several 2D complex one discontinuities between a rectangular wave guide [15] filled with isotropic [16] medium, with  ... 
doi:10.9734/jerr/2021/v21i317450 fatcat:ymty4hobgfgbhnpl4m5e3w57vq

A New Terrain-Following Vertical Coordinate Formulation for Atmospheric Prediction Models

Christoph Schär, Daniel Leuenberger, Oliver Fuhrer, Daniel Lüthi, Claude Girard
2002 Monthly Weather Review  
The new coordinate is tested and compared against standard sigma and hybrid coordinate systems using an idealized advection test.  ...  These results are confirmed by a theoretical analysis of the truncation error. In addition, the new coordinate is tested in idealized and real-case numerical experiments using a nonhydrostatic model.  ...  We are indebted to Jo Klemp and Bill Skamarock for discussions that have contributed to clarifying the role of finescale topography in numerical models.  ... 
doi:10.1175/1520-0493(2002)130<2459:antfvc>2.0.co;2 fatcat:jgydc7a5tjgkbnvbnb6m4sqkku

Bringing order to chaos: Hybrid modelling of a discontinuous chaotic system

Eva M. Navarro-Lopez, Juan G. Barajas-Ramirez
2010 2010 11th International Workshop on Variable Structure Systems (VSS)  
The approach proposed here is especially useful in order to specify the transitions between the different system operation modes, which becomes a crucial problem due to the existence of multiple switching  ...  This system is reinterpreted within the hybrid-automaton framework, and what is referred to as the Lorenz hybrid automaton is established.  ...  The difference now is that the second-order sliding motion appears on S 2 . B.  ... 
doi:10.1109/vss.2010.5544705 fatcat:z7mnmzmnb5ewhctv345qf3vtpa
« Previous Showing results 1 — 15 out of 54,147 results