Results 51 to 60 of about 37,103 (214)
International Journal of Mechanical System Dynamics, EarlyView.ABSTRACT Geometrically nonlinear static analysis of materially imperfect composite doubly curved shells is investigated via the generalised differential quadrature method. The effects of both shear and thickness deformation are considered through a thickness‐ and shear‐deformable third‐order theory formulated in curvilinear coordinates, while the ...
Behrouz Karami +3 more
wiley +1 more source
The numerical solution of an Abel integral equation by the optimal quadrature formula
Results in Applied MathematicsIn this study, a novel and efficient approach utilizing optimal quadrature formulas is introduced to derive approximate solutions for generalizing Abel’s integral equations. The method, characterized by high accuracy and simplicity, involves constructing
Abdullo Hayotov +2 more
doaj +1 more source
Advances in Mechanical Engineering, 2015 Based on the general model of design optimization of multibody dynamics, a modified genetic algorithm with adaptive crossover and mutation rates is developed to find optimal design variables which satisfy the dynamic constraints and obtain optimum ...
Jieyu Ding
doaj +1 more source
Low-Complexity and Adaptive Nonlinearity Estimation Module Based on Godard's Error
IEEE Photonics Journal, 2016 A low-complexity and adaptive nonlinearity estimation module is proposed and experimentally demonstrated based on Godard's error and low-pass filter (LPF).
Lin Jiang +6 more
doaj +1 more source
On certain optimal quadrature formulas
Journal of Research of the National Bureau of Standards, Section B: Mathematical Sciences, 1971 IS any Npoint quadrature formula, and E(l(f) =/(f) -Q(f) where /(f) is the integral which Q is approximating, we shall denote by "cr(EQ)" the "RMS" average of Ell with respect to Sarma's measure. Sarma calls a formula Q.I' "completely optimal" if cr(EC1s) :s; cr(ECl ~\,) for every N·point formula Q~; and he calls it "optimal in the weights" if cr(EClN )
openaire +2 more sources
The Cosmic Linear Anisotropy Solving System (CLASS) IV: Efficient implementation of non-cold relics
, 2011 We present a new flexible, fast and accurate way to implement massive neutrinos, warm dark matter and any other non-cold dark matter relics in Boltzmann codes.
A. Lewis +11 more
core +1 more source
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Design optimization for automatically generating optimal design results is a promising technique for enhancing the efficiency of design processes and outcomes. However, its development for soil nail reinforced slopes is limited since the traditional slope stability analysis using the limit equilibrium method (LEM) becomes relatively time ...
Weihang Ouyang, Kai Liu, Si‐Wei Liu
wiley +1 more source
A spectral method based on the second kind Chebyshev polynomials for solving a class of fractional optimal control problems [PDF]
Sahand Communications in Mathematical Analysis, 2016 In this paper, we consider the second-kind Chebyshev polynomials (SKCPs) for the numerical solution of the fractional optimal control problems (FOCPs). Firstly, an introduction of the fractional calculus and properties of the shifted SKCPs are given and ...
Somayeh Nemati
doaj
Is Gauss quadrature better than Clenshaw-Curtis? [PDF]
, 2006 We consider the question of whether Gauss quadrature, which is very famous, is more powerful than the much simpler Clenshaw-Curtis quadrature, which is less well-known.
Trefethen, Lloyd N.
core
IGA-based Multi-Index Stochastic Collocation for random PDEs on arbitrary domains
, 2019 This paper proposes an extension of the Multi-Index Stochastic Collocation (MISC) method for forward uncertainty quantification (UQ) problems in computational domains of shape other than a square or cube, by exploiting isogeometric analysis (IGA ...
Beck, Joakim +2 more
core +1 more source