نتایج جستجو برای: numerical methods in electromagnetics

تعداد نتایج: 17152131  

2006
Qiang Li Kok-Meng Lee George W. Woodruff

Design of electromagnetic (EM) actuators often involves solving a magnetic field problem. This paper presents an adaptive meshless method (MLM) that inherits many advantages of the finite-element method (FEM) but needs no explicit mesh structure for design of EM actuators. Specifically, the paper offers a technique to estimate the distribution of numerical errors and a scheme that automatically...

2003
A. Rubinstein F. Rachidi M. Rubinstein B. Reusser

We present a new, parallel version of the Numerical Electromagnetics Code (NEC). The parallelization is based on a bi-dimensional block-cyclic distribution of matrices on a rectangular processor grid, assuring a theoretically-optimal load balance among the processors. The code is portable to any platform supporting message passing parallel environments such as MPI and PVM where it could even be...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

wireless sensor networks (wsns) are one of the most interesting consequences of innovations in different areas of technology including wireless and mobile communications, networking, and sensor design. these networks are considered as a class of wireless networks which are constructed by a set of sensors. a large number of applications have been proposed for wsns. besides having numerous applic...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان - دانشکده مهندسی شیمی 1391

there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1390

insurers have in the past few decades faced longevity risks - the risk that annuitants survive more than expected - and therefore need a new approach to manage this new risk. in this dissertation we survey methods that hedge longevity risks. these methods use securitization to manage risk, so using modern financial and insurance pricing models, especially wang transform and actuarial concepts, ...

2003
Hélio A. Navarro Valdemir G. Ferreira Fernando M. Federson José A. Cuminato Murilo F. Tomé Antonio Castelo

This paper presents numerical simulations of incompressible fluid flow problems in the presence of a magnetic field. The equations governing the flow consist of the Navier-Stokes equations of fluid motion coupled with Maxwell ́s equations of electromagnetics. The study of fluid flows under the influence of a magnetic field and with no free electric charges or electric fields is known as magnetoh...

2017
Matteo Bonotto Angelo Cenedese Paolo Bettini

This paper presents a model order reduction method via Krylov subspace projection, for applications in the field of computational electromagnetics (CEM). The approach results to be suitable both for SISO and MIMO systems, and is based on the numerically robust Arnoldi procedure. We have studied the model order reduction as the number of inputs and outputs changes, to better understand the behav...

2012
Olivier Terzo Pietro Ruiu Lorenzo Mossucca Matteo Alessandro Francavilla Francesca Vipiana

The accurate and efficient solution of Maxwell’s equation is the problem addressed by the scientific discipline called Computational ElectroMagnetics (CEM). Many macroscopic phenomena in a great number of fields are governed by this set of differential equations: electronic, geophysics, medical and biomedical technologies, virtual EM prototyping, besides the traditional antenna and propagation ...

Journal: :Nature 1965

2007
Jerome H. Kim

Dr. Jinjie Liu's research interests focus on numerical partial differential equations and scientific computing with applications in computational fluid dynamics, computational electromagnetics, nanophotonics, metamaterials and nonlinear optics.Generalization of the FDTD algorithm for simulations of hydrodynamic nonlinear Drude model", J.A classical theory for second-harmonic generation from met...

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