Results 41 to 50 of about 578,187 (296)

The Modified Trapezoidal Rule for Computing Hypersingular Integral on Interval

open access: yesJournal of Applied Mathematics, 2013
The modified trapezoidal rule for the computation of hypersingular integrals in boundary element methods is discussed. When the special function of the error functional equals zero, the convergence rate is one order higher than the general case.
Jin Li, Xiuzhen Li
doaj   +1 more source

Improved active disturbance rejection speed control for autonomous driving of high-speed train based on feedforward compensation

open access: yesScience Progress, 2023
Due to the complex and changeable train operation environment and the unstable and time-varying parameters, accurate modeling is limited. Therefore, a modified active disturbance rejection control algorithm based on feedforward compensation (FC-MADRC) is
Lili Yue   +4 more
doaj   +1 more source

Statistical Inference for the Heteroscedastic Partially Linear Varying-Coefficient Errors-in-Variables Model with Missing Censoring Indicators

open access: yesDiscrete Dynamics in Nature and Society, 2021
In this paper, we focus on heteroscedastic partially linear varying-coefficient errors-in-variables models under right-censored data with censoring indicators missing at random.
Yuye Zou, Chengxin Wu
doaj   +1 more source

Improving approximation by switching between two error functions

open access: yesCroatian Operational Research Review, 2017
The key to designing a LED luminaire is the choice of secondary optics. The design process can be improved using analytical models and optimization tools. A modified approximation error (evaluation function) is introduced in the standard analytical model
David Kaljun, Janez Žerovnik
doaj   +1 more source

An extensive mathematical approach for wind speed evaluation using inverse Weibull distribution

open access: yesAlexandria Engineering Journal, 2023
Wind velocity and potential are frequently estimated using probability density functions (PDFs) such as the Inverse Weibull and Rayleigh. Determining whether they are suitable for modelling observed distributions is crucial.
Sadiah M. Aljeddani, M.A. Mohammed
doaj   +1 more source

Dimensional Error Compensation Based on Data-Driven Sliding Mode Terminal Iterative Learning Control for CNC Batch Grinding

open access: yesApplied Sciences, 2023
Dimensional error of workpiece is an important index that indicts the grinding accuracy of machine tools. Conventional error compensation strategies focus on modeling one or several error factors for a particular CNC machining type, which are time ...
Tiantian Chen, Xincheng Tian
doaj   +1 more source

Complex-valued symmetric radial basis function network for beamforming [PDF]

open access: yes, 2009
The complex-valued radial basis function (RBF) network proposed by Chen et al. (1994) has found many applications for processing complex-valued signals, in particular, for communication channel equalization and signal detection.
Sheng Chen, Chen, Sheng
core   +1 more source

An error analysis of the modified scaling and squaring method [PDF]

open access: yes, 2007
As a time discretization scheme for an ordinary differential equation with a stiff linear term, there is a class of methods that utilize the exponential or related functions of the coefficient matrix of the linear term.
Koikari, S.
core   +1 more source

Inverse material identification in coupled acoustic-structure interaction using a modified error in constitutive equation functional [PDF]

open access: yesComputational Mechanics, 2014
This work focuses on the identification of heterogeneous linear elastic moduli in the context of frequency-domain, coupled acoustic-structure interaction (ASI), using either solid displacement or fluid pressure measurement data. The approach postulates the inverse problem as an optimization problem where the solution is obtained by minimizing a ...
Warner, James E.   +3 more
openaire   +3 more sources

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