Results 61 to 70 of about 394,180 (145)

A domain equation for refinement of partial systems

, 2004
Published ...
Huth, MRA, Jagadeesan, R, Schmidt, DA
core   +1 more source

Fast Adaptive High-Order Integral Equation Methods for Electromagnetic Scattering From Smooth Perfect Electric Conductors

IEEE Open Journal of Antennas and Propagation
Many integral equation-based methods are available for problems of time-harmonic electromagnetic scattering from perfect electric conductors. Among the many challenges that arise in such calculations are the avoidance of spurious resonances, robustness ...
Felipe Vico, Leslie Greengard, Michael O'Neil, Manas Rachh   +3 more
doaj   +1 more source

On a discrete version of Fejér inequality for α-convex sequences without symmetry condition

Demonstratio Mathematica
In this study, we introduce the notion of α\alpha -convex sequences which is a generalization of the convexity concept. For this class of sequences, we establish a discrete version of Fejér inequality without imposing any symmetry condition. In our proof,
Jleli Mohamed, Samet Bessem
doaj   +1 more source

Effect of Cold Rolling and Heat Treatment on the Mechanical Properties of GH4169 Alloy Sheet at Room Temperature

Metals, 2015
The mechanical properties of GH4169 alloy sheet after cold rolling (at 0%, 10%, 30%, 50% and 70%) and solid solution were investigated. The textures and Taylor factors were characterized using electron backscattering diffraction (EBSD).
Shi-Hong Zhang, Neng-Yong Ye, Ming Cheng, Hong-Wu Song, Hong-Wei Zhou, Ping-Bo Wang   +5 more
doaj   +1 more source

Navigating waves: Advancing ocean dynamics through the nonlinear Schrödinger equation

Nonlinear Engineering
The nonlinear Schrödinger equation, held in high regard in the realms of plasma physics, fluid mechanics, and nonlinear optics, reverberates deeply within the field of ocean engineering, imparting profound insights across a plethora of phenomena.
Iqbal Ifrah, Boulaaras Salah Mahmoud, Rehman Hamood Ur, Saleem Muhammad Shoaib, Chou Dean   +4 more
doaj   +1 more source

Evaluation of truncation error and adaptive grid generation for the transonic full potential flow calculations [PDF]

The effects of truncation error on the numerical solution of transonic flows using the full potential equation are studied. The effects of adapting grid point distributions to various solution aspects including shock waves is also discussed. A conclusion
Nakamura, S.
core   +1 more source

Vibration suppression analysis of iced transmission lines under axial time-delay velocity feedback strategy

Theoretical and Applied Mechanics Letters
To ensure the safety of power energy transmission channel and mitigate the harm caused by galloping of iced transmission lines, the axial time-delay velocity feedback strategy is adopted to suppress the galloping.
Maoming Hu, Guangyun Min, Wanyu Bao, Bowen Tian, Shuguang Yang, Mengqi Cai   +5 more
doaj   +1 more source

An A Posteriori Error Indicator for Discontinuous Galerkin Approximations of Fourth Order Elliptic Problems [PDF]

We introduce a residual-based a posteriori error indicator for discontinuous Galerkin discretizations of the biharmonic equation with essential boundary conditions.
Georgoulis, Emmanuil H., Houston, Paul, Virtanen, Juha   +2 more
core  

Fischer decomposition by inframonogenic functions

Cubo, 2010
Let δx denote the Dirac operator in Rm. In this paper, we present a refinement of the biharmonic functions and at the same time an extension of the monogenic functions by considering the equation δxf δx = 0. The solutions of this “sandwich”
Helmuth R Malonek, Dixan Peña Peña, Frank Sommen   +2 more
doaj  

Adaptive mesh strategies for the spectral element method [PDF]

An adaptive spectral method was developed for the efficient solution of time dependent partial differential equations. Adaptive mesh strategies that include resolution refinement and coarsening by three different methods are illustrated on solutions to ...
Mavriplis, Catherine
core   +1 more source