Results 41 to 50 of about 1,730 (224)

About coefficients and order of convergence of the optimal quadrature formula [PDF]

open access: yes, 2014
In this paper we construct an optimal quadrature formula in the sense of Sard in the Hilbert space 2 3 ( ) K P . Using S.L. Sobolev's method we obtain new optimal quadrature formula and give explicit expressions for the corresponding optimal ...
Kholmat M Shadimetov   +2 more
core  

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

open access: yesLaser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil   +6 more
wiley   +1 more source

The discrete analogue of high-order differential operator and its application to finding coefficients of optimal quadrature formulas

open access: yesJournal of Inequalities and Applications
The discrete analog of the differential operator plays a significant role in constructing interpolation, quadrature, and cubature formulas. In this work, we consider a discrete analog D m ( h β ) $D_{m}(h\beta )$ of the differential operator d 2 m d x 2 ...
K. M. Shadimetov, J. R. Davronov
doaj   +1 more source

ERROR BOUNDS FOR SURFACE AREA ESTIMATORS BASED ON CROFTON’S FORMULA

open access: yesImage Analysis and Stereology, 2011
According to Crofton's formula, the surface area S(A) of a sufficiently regular compact set A in Rd is proportional to the mean of all total projections pA (u) on a linear hyperplane with normal u, uniformly averaged over all unit vectors u.
Markus Kiderlen, Daniel Meschenmoser
doaj   +1 more source

Ultrahigh‐Order Harmonic Mode‐Locked Optoelectronic Oscillator

open access: yesLaser &Photonics Reviews, EarlyView.
This article demonstrates a record‐breaking microwave frequency comb generator using an ultrahigh‐harmonic‐order mode‐locked optoelectronic oscillator. By integrating dual recirculating loops into a low‐coherence system, the researchers achieved a harmonic order of 956 with superior noise suppression.
Zhuoran Wang   +3 more
wiley   +1 more source

Enhancing Reference Tracking in Induction Motor Drives: A Hybrid Model Predictive Control and Artificial Neural Network Approach

open access: yesInternational Journal of Robust and Nonlinear Control, EarlyView.
ABSTRACT Induction motors (IMs) are widely used in industry for their robustness and cost‐effectiveness, yet their nonlinear and multivariable dynamics pose significant challenges for high‐performance speed control. Model Predictive Control (MPC) is a well‐established solution but suffers from limitations related to model accuracy and parameter ...
Asier del Rio   +4 more
wiley   +1 more source

Digital Twin‐Based Optimization of Service Availability in LEO Mega Constellations Considering Handover Delays in Open RAN

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT As non‐terrestrial networks (NTNs) become integral to future 6G systems, ensuring seamless connectivity and service continuity over low Earth orbit (LEO) satellite constellations is essential. This work investigates the impact of open radio access network (RAN) functional splits on handover performance in NTNs, focusing on minimizing service ...
Siva Satya Sri Ganesh Seeram   +3 more
wiley   +1 more source

Genetic algorithm for design optimization of multibody dynamics using differential–algebraic equation integrators

open access: yesAdvances 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

open access: yesIEEE 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

A priori error estimates for finite element methods with numerical quadrature for nonmonotone nonlinear elliptic problems [PDF]

open access: yes, 2012
International audienceThe effect of numerical quadrature in finite element methods for solving quasilinear elliptic problems of nonmonotone type is studied.
Vilmart, Gilles, Abdulle, Assyr
core   +3 more sources

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