Results 31 to 40 of about 13,879 (233)
Proceedings, 2017 The antenna pattern of a SAR sensor can be represented as a two-dimensional sinc function, [...]
Xinwei Gu +3 more
doaj +1 more source
Electromagnetic sinc Schell-Model Vortex Beams
IEEE Photonics Journal, 2019 We introduce a new class of electromagnetic Schell-model source in which the cross-spectral density matrix possesses a sinc correlation function and a separable phase.
Zhangrong Mei, Yuyan Wang, Yonghua Mao
doaj +1 more source
Numerical Method for a Risk Model with Two-Sided Jumps and Proportional Investment
Mathematics, 2023 In this paper, we consider a risk model with two-sided jumps and proportional investment. The upward jumps and downward jumps represent gains and claims, respectively. Suppose the company invests all of its surplus in a certain proportion in two types of
Jiaen Xu +3 more
doaj +1 more source
Convergence of approximate solution of delay Volterra integral equations [PDF]
Iranian Journal of Numerical Analysis and Optimization, 2016 In this paper, sinc-collocation method is discussed to solve Volterra func tional integral equations with delay function (t). Also the existence and uniqueness of numerical solutions for these equations are provided.
M. Zarebnia, Leila Shiri
doaj +1 more source
Sinc function representation and three-loop master diagrams [PDF]
Physical Review D, 2001 We test the Sinc function representation, a novel method for numerically evaluating Feynman diagrams, by using it to evaluate the three-loop master diagrams. Analytical results have been obtained for all these diagrams, and we find excellent agreement between our calculations and the exact values. The Sinc function representation converges rapidly, and
Easther, Richard +2 more
openaire +2 more sources
Demonstrating Vibrational Current Generation With a Self‐Assembled Bioelectret
Advanced Functional Materials, EarlyView.Vacuum‐deposited films of the plant‐derived molecule, Baicalein, form a self‐assembled bioelectret exhibiting spontaneous orientation polarization and a giant surface potential. The films induce alternating current during the vibration of a movable electrode without charging treatments. Hydrocarbon protection enhances the air stability of the Baicalein
Kouki Akaike +7 more
wiley +1 more source
Fractional Fokker-Planck Equation
Mathematics, 2017 We shall discuss the numerical solution of the Cauchy problem for the fully fractional Fokker-Planck (fFP) equation in connection with Sinc convolution methods. The numerical approximation is based on Caputo and Riesz-Feller fractional derivatives.
Gerd Baumann, Frank Stenger
doaj +1 more source
Uniform approximation to ¦x¦ by Sinc functions
Journal of Approximation Theory, 1991 AbstractThe best uniform approximation to the function ¦x¦β, β > 0, on [−1, 1] by any of the standard classes of functions of approximation theory has an asymptotic error of at best O(e−c√n), where n is the dimension of the space of approximating functions.
openaire +1 more source
Chemically Fueled Systems Chemistry Across Length Scales
Advanced Functional Materials, EarlyView.Chemically fueled reaction cycles regulate processes through single and multiple catalytic sites on the molecular and assembly scale. This gives rise to unique kinetically controlled properties/functions like spatio‐temporal catalysis, oscillations, optical properties, and perform work.
Brigitte A. K. Kriebisch, Job Boekhoven
wiley +1 more source
Dual pulse shaping transmission with sinc‐function based complementary Nyquist pulses
IET Communications, 2022 Due to difficulties in manufacturing, data conversion devices with extremely high sampling rate are becoming the bottleneck in realising high‐speed communication systems with a large bandwidth.
Hang Li +4 more
doaj +1 more source