Browsing High Performance Computation for Engineered Systems (HPCES) by Title
Now showing items 5473 of 87

Partitioned Conduction Modes in Surface Integral EquationBased Impedance Extraction
(200401)As integrated circuits operate at increasingly higher speed, methods are needed to handle wideband quasistatic and full wave EM analysis of distributed RLC impedances for package and onchip interconnects. One particular ... 
Performance Analysis of Metamaterials With Twodimensional Isotropy
(200401)A twodimensional isotropic metamaterials formed by crossed splitring resonators (CSRRs) are studied in this paper. The effective characteristic parameters of this media are determined by quasistatic Lorentz theory. The ... 
Preconditioning and iterative solution of symmetric indefinite linear systems arising from interior point methods for linear programming
(200501)We study the preconditioning of symmetric indefinite linear systems of equations that arise in interior point solution of linear optimization problems. The preconditioning method that we study exploits the block structure ... 
A PrecorrectedFFT Method for Coupled ElectrostaticStokes Flow Problem
(200601)We present the application of the boundary integral equation method for solving the motion of biological cell or particle under Stokes flow in the presence of electrostatic field. The huge dense matrixvector product from ... 
Pup Matching: Model Formulations and Solution Approaches
(200201)We model Pup Matching, the logistics problem of matching or pairing semitrailers known as pups to cabs able to tow one or two pups simultaneously, as an NPcomplete version of the Network Loading Problem (NLP). We examine ... 
RealTime Optimal Parametric Design of a Simple InfiltrationEvaporation Model Using the AssessPredictOptimize (APO) Strategy
(200301)Optimal parametric design of a system must be able to respond quickly to short term needs as well as long term conditions. To this end, we present an AssessPredictOptimize (APO) strategy which allows for easy modification ... 
RealTime Reliable Prediction of LinearElastic ModeI Stress Intensity Factors for Failure Analysis
(200601)Modern engineering analysis requires accurate, reliable and efficient evaluation of outputs of interest. These outputs are functions of "input" parameter that serve to describe a particular configuration of the system, ... 
ReducedBasis Approximation of the ViscosityParametrized Incompressible NavierStokes Equation: Rigorous A Posteriori Error Bounds
(200401)We present a technique for the rapid and reliable prediction of linearfunctional outputs of elliptic partial differential equations with affine (or approximately affine) parameter dependence. The essential components are ... 
ReducedBasis Methods for Inverse Problems in Partial Differential Equations
(200401)We present a technique for the rapid, reliable, and accurate evaluation of functional outputs of parametrized elliptic partial differential equations. The essential ingredients are (i) rapidly globally convergent reducedbasis ... 
ReducedBasis Output Bound Methods for Parametrized Partial Differential Equations
(200201)We present a technique for the rapid and reliable prediction of linearfunctional outputs of elliptic (and parabolic) partial differential equations with affine parameter dependence. The essential components are (i) ... 
Reducedorder, trajectory piecewiselinear models for nonlinear computational fluid dynamics
(200401)A trajectory piecewiselinear (TPWL) approach is developed for a computational fluid dynamics (CFD) model of the twodimensional Euler equations. The approach uses a weighted combination of linearized models to represent ... 
Reliable RealTime Optimization of Nonconvex Systems Described by Parametrized Partial Differential Equations
(200301)The solution of a single optimization problem often requires computationallydemanding evaluations; this is especially true in optimal design of engineering components and systems described by partial differential equations. ... 
Reliable RealTime Solution of Parametrized Elliptic Partial Differential Equations: Application to Elasticity
(200201)The optimization, control, and characterization of engineering components or systems require fast, repeated, and accurate evaluation of a partialdifferentialequationinduced inputoutput relationship. We present a technique ... 
Research and Tutorial Exposition
(200201)My research is concentrated on applications of linear algebra in engineering, including wavelet analysis and structured matrices and (currently) approximation of large dense matrices by a mosaic of low rank blocks. 
Robust Discrete Optimization
(200301)We propose an approach to address data uncertainty for discrete optimization problems that allows controlling the degree of conservatism of the solution, and is computationally tractable both practically and theoretically. ... 
A Robust Optimization Approach to Supply Chain Management
(200401)We propose a general methodology based on robust optimization to address the problem of optimally controlling a supply chain subject to stochastic demand in discrete time. The attractive features of the proposed approach ... 
SecondOrder Fluid Dynamics Models for Travel Times in Dynamic Transportation Networks
(200201)In recent years, traffic congestion in transportation networks has grown rapidly and has become an acute problem. The impetus for studying this problem has been further strengthened due to the fast growing field of ... 
Shock Capturing with Discontinuous Galerkin Method
(200601)Shock capturing has been a challenge for computational fluid dynamicists over the years. This article deals with discontinuous Galerkin method to solve the hyperbolic equations in which solutions may develop discontinuities ... 
A Simple But Effective Evolutionary Algorithm for Complicated Optimization Problems
(200201)A simple but effective evolutionary algorithm is proposed in this paper for solving complicated optimization problems. The new algorithm presents two hybridization operations incorporated with the conventional genetic ... 
A Simulation Method for Calculating the Path Travel Time in Dynamic Transportation Network
(200201)The calculation of path travel times is an essential component for the dynamic traffic assignment and equilibrium problems. This paper presents a simulation method for calculating actual path travel times for the traffic ...