Results 41 to 50 of about 71,031 (218)

Asymptotic behaviour of fixed-order error constants of modified quadrature formulae for Cauchy principal value integrals

Journal of Inequalities and Applications, 2000
We consider quadrature formulae for Cauchy principal value integrals The quadrature formulae considered here are so-called modified formulae, which are obtained by first subtracting the singularity, and then applying some standard quadrature formula ...
Diethelm Kai, Köhler Peter
doaj  

Thermal noise and oscillations of photon distribution for squeezed and correlated light

, 1993
The oscillations of photon distribution function for squeezed and correlated light are shown to decrease when the temperature increases.The influence of the squeezing parameter and photon quadrature correlation coefficient on the photon distribution ...
Caves, Dodonov, Dodonov, Dodonov, Dodonov, Dodonov, Glauber, Heisenberg, Hollenhorst, L. Rosa, O.V. Man'ko, Robertson, Schleich, Schrödinger, Stoler, V.I. Man'ko, V.V. Dodonov, Vourdas   +17 more
core   +1 more source

A Hybrid EV Charging Architecture Integrating DC Fast Charging and Wireless Power Transfer

Energy Science &Engineering, EarlyView.
A hybrid EV charging architecture combining DC fast charging and wireless power transfer is proposed. The system achieves high efficiency, grid compliance, and reliable bidirectional operation, offering a scalable solution that enhances user convenience while paving the way for smarter, future‐ready EV charging infrastructure.
Ali Almaktoof, Mohamad Taha, Marco Adonis, Kareem Halablab   +3 more
wiley   +1 more source

Euler-Maclaurin type optimal formulas for numerical integration in Sobolev space

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2020
In the present paper the problem of construction of optimal quadrature formulas in the sense of Sard in the space  L2(m)(0,1) is considered. Here the quadrature sum consists of values of the integrand at nodes and values of the first and the third ...
Hayotov, A.R., Nuraliev, F.A., Parovik, R.I., Shadimetov, Kh.M.   +3 more
doaj   +1 more source

Cubic scaling algorithms for RPA correlation using interpolative separable density fitting

, 2017
We present a new cubic scaling algorithm for the calculation of the RPA correlation energy. Our scheme splits up the dependence between the occupied and virtual orbitals in $\chi^0$ by use of Cauchy's integral formula.
Lu, Jianfeng, Thicke, Kyle
core   +2 more sources

Stability Evaluation and Parametric Optimization of Coal‐Concrete Composite Bearing Systems Under Mine‐Water‐Induced Deterioration: Experiments and FEINN Analysis

Energy Science &Engineering, EarlyView.
Mine‐water immersion tests reveal pronounced coal weakening (vs. minor concrete degradation), identifying coal pillars as the stability‐limiting component in composite dams. A coupled FEINN framework quantifies extreme‐pressure stability and ranks multi‐parameter designs via a normalized multi‐indicator scheme, enabling optimized dam configuration for ...
He Wen, Hongchuan Dai, Guixin Zhang, Pengzhe Li, Tong Yang, Cang Gong, Renbo Gao   +6 more
wiley   +1 more source

Internality of Two-Measure-Based Generalized Gauss Quadrature Rules for Modified Chebyshev Measures II

Mathematics
Gaussian quadrature rules are commonly used to approximate integrals with respect to a non-negative measure dσ^. It is important to be able to estimate the quadrature error in the Gaussian rule used.
Dušan Lj. Djukić, Rada M. Mutavdžić Djukić, Aleksandar V. Pejčev, Lothar Reichel, Miodrag M. Spalević, Stefan M. Spalević   +5 more
doaj   +1 more source

A class of quadrature formulas [PDF]

Mathematics of Computation, 1974
It is proved that there exists a set of polynomials orthogonal on [ − 1 , 1 ] [ - 1,1] with respect to the weight function ( 1 ) w ( t
openaire   +1 more source

Fast Calculation for the Flow and Heat Transfer of Tempered Fractional Maxwell Viscoelastic Fluid

International Journal for Numerical Methods in Fluids, EarlyView.
This study develops a tempered fractional Maxwell model to simulate unsteady thermal flow in viscoelastic fluids, capturing key rheological behaviors. A fast SOE‐based algorithm is proposed to improve the computational efficiency of the numerical scheme. Results reveal how key parameters influence fluid motion and heat transfer, demonstrating the model'
Yi Liu, Mochen Jiang, Libo Feng
wiley   +1 more source

Parallel Complex Quadrature Spatial Modulation

Applied Sciences, 2020
In this paper, we propose a new multiple-input multiple-output (MIMO) transmission scheme, called parallel complex quadrature spatial modulation (PCQSM).
Sheriff Murtala, Nishal Muchena, Tasnim Holoubi, Manar Mohaisen, Kang-Sun Choi   +4 more
doaj   +1 more source