Browsing by Keywords "Boundary conditions"
Now showing items 120 of 36

Accurate planewave excitation in the FDTD method
(IEEE, Piscataway, NJ, United States, 1997)Different techniques are developed to implement planewave excitation on the finitedifference timedomain (FDTD) method, such as the initialcondition, the hardsource, and the connectingcondition techniques, for the ... 
Analysis of an arbitrary profile reflector antenna having resistivetype surfaceHpolarization case
(2008)A regularizationbased numerical solution is obtained for arbitraryshape conic section profile reflector antenna in 2D, for the Hpolarization case. New point is that the reflector surface is assumed a resistivetype ... 
Analysis of an arbitraryprofile, cylindrical, impedance reflector surface illuminated by an Epolarized complex line source beam
(VSP BV, 2014)Electromagnetic scattering from a cylindrical reflector surface having an arbitrary conic section profile is studied. We assumed an electrically thin layer antenna illuminated by a complex line source in Epolarization ... 
Analytic modeling of loss and crosscoupling in capacitive micromachined ultrasonic transducers
(IEEE, Piscataway, NJ, United States, 1998)The structural loss mechanism of capacitive micromachined ultrasonic transducer (cMUT) is investigated using finite element analysis and the normal mode theory. A single micromachined transducer membrane on an infinite ... 
Aspects of computational homogenization at finite deformations: a unifying review from Reuss' to Voigt's Bound
(American Society of Mechanical Engineers (ASME), 2016)The objective of this contribution is to present a unifying review on straindriven computational homogenization at finite strains, thereby elaborating on computational aspects of the finite element method. The underlying ... 
Comparative evaluation of absorbing boundary conditions using green's functions for layered media
(IEEE (Institute of Electrical and Electronics Engineers), 199506)Absorbing boundary conditions are comparatively studied using the Green's functions of the vector and scalar potentials for multilayer geometries and general sources. The absorbing boundaries are introduced as additional ... 
Comparative evaluation of absorbing boundary conditions using Green's functions for layered media
(Institute of Electrical and Electronics Engineers, 199602)Absorbing boundary conditions are comparatively studied using the Green's functions of the vector and scalar potentials for multilayer geometries and general sources. Since the absorbing boundaries are introduced as ... 
Constructing convex directions for stable polynomials
(IEEE, 2000)The constructions of convex directions based on phasederivative interpretations were obtained for Hurwitzstable polynomials. The phasederivative conditions were based on the sensitivity of rootlocus associated with the ... 
A dynamic control law for the wave equation
(Elsevier, 1994)We consider a system described by the onedimensional linear wave equation in a bounded domain with appropriate boundary conditions. To stabilize the system, we propose a dynamic boundary controller applied at the free end ... 
Dynamical phase transitions in totally asymmetric simple exclusion processes with two types of particles under periodically driven boundary conditions
(American Physical Society, 2016)Driven diffusive systems have provided simple models for nonequilibrium systems with nontrivial structures. Steadystate behavior of these systems with constant boundary conditions have been studied extensively. Comparatively ... 
An efficient algorithm for the single machine total tardiness problem
(Taylor & Francis, 2001)This paper presents an exact algorithm for the single machine total tardiness problem (1// L T;). We present a new synthesis of various results from the literature which leads to a compact and concise representation of job ... 
Evaluation of nusselt number for a flow in a microtube with secondorder model including thermal creep
(2012)In this paper, Nusselt number for a flow in a microtube is determined analytically with a constant wall heat flux thermal boundary condition. The flow assumed to be incompressible, laminar, hydrodynamically and thermally ... 
An exponential stability result for the wave equation
(Elsevier, 2002)We consider a system described by the onedimensional linear wave equation in a bounded domain with appropriate boundary conditions. To stabilize this system, we propose a dynamic boundary controller applied at the free ... 
A highfrequency based asymptotic solution for surface fields on a sourceexcited sphere with an impedance boundary condition
(WileyBlackwell Publishing, 20101005)A highfrequency asymptotic solution based on the Uniform Geometrical Theory of Diffraction (UTD) is proposed for the surface fields excited by a magnetic source located on the surface of a sphere with an impedance boundary ... 
Hybrid model for probefed rectangular microstrip antennas with shorting pins
(IEEE, 2000)For a probefed microstrip antenna, it is quite common to employ the cavity model to find the field distribution under the patch and other electrical properties. Therefore, a multiport analysis technique based on the cavity ... 
Integral action based Dirichlét boundary control of Burgers equation
(2003)Modeling and boundary control for Burgers Equation is studied in this paper. Modeling has been done via processing of numerical observations through singular value decomposition with Galerkin projection. This results in a ... 
Large deviations of probability rank
(2000)Consider a pair of random variables (X,Y) with distribution P. The probability rank function is defined so that G(xy) = 1 for the most probable outcome x conditional on Y = y, G(xy) = 2 for the second most probable ... 
Low dimensional modelling and Dirichlét boundary controller design for Burgers equation
(Taylor & Francis, 2004)Modelling and boundary control for the Burgers equation is studied in this paper. Modelling has been done via processing of numerical observations through proper orthogonal decomposition (POD) with Galerkin projection. ... 
Modeling the effect of subsurface interface defects on contact stiffness for ultrasonic atomic force microscopy
(AIP Publishing LLC, 2004)We present a model predicting the effects of mechanical defects at layer interfaces on the contact stiffness measured by ultrasonic atomic force microscopy sAFMd. Defects at subsurface interfaces result in changes at the ... 
Multi input dynamical modeling of heat flow with uncertain diffusivity parameter
(Taylor & Francis, 2003)This paper focuses on the multiinput dynamical modeling of onedimensional heat conduction process with uncertainty on thermal diffusivity parameter. Singular value decomposition is used to extract the most significant ...