Results 1 to 10 of about 9,882 (50)

Inverse procedure for measuring piezoelectric material parameters using a single multi-electrode sample [PDF]

Journal of Sensors and Sensor Systems, 2023
An inverse measurement procedure for the determination of a full set of piezoelectric material parameters using a single sample is presented. The basis for the measurement procedure is a measurement of the frequency-dependent impedance of the sample.
L. Claes, N. Feldmann, V. Schulze, L. Meihost, H. Kuhlmann, B. Jurgelucks, A. Walther, B. Henning   +7 more
doaj   +1 more source

Modification of the double direction approach for solving systems of nonlinear equations with application to Chandrasekhar’s Integral equation [PDF]

Iranian Journal of Numerical Analysis and Optimization, 2022
This study aims to present an accelerated derivative-free method for solving systems of nonlinear equations using a double direction approach. The approach approximates the Jacobian using a suitably formed diag-onal matrix by applying the acceleration ...
A.I. Kiri, M.Y. Waziri, A.S. Halilu
doaj   +1 more source

New Heuristic Local Search Method for University Course Timetabling [PDF]

مدیریت نوآوری و راهبردهای عملیاتی, 2023
Purpose: This paper presents a new two-phase method for solving the curriculum-based university course timetabling problem. A new metaheuristic approach is used in both phases of the new present method.Methodology: A feasible, high-quality solution is ...
Mohammad Sadegh Shiri, Mostafa Khorramizadeh, Vahid Ahmadi   +2 more
doaj   +1 more source

Development of Stochastic Mathematical Models for the Prediction of Heavy Metal Content in Surface Waters Using Artificial Neural Network and Multiple Linear Regression [PDF]

E3S Web of Conferences, 2021
The principal purpose of this study is to build stochastic neuronal models, for the prediction of heavy metal, contents in the surface waters of the Oued Inaouen catchment area of the TAZA region, according to their Physico-chemical parameters; we have ...
El Chaal Rachid, Aboutafail Mouley Othman   +1 more
doaj   +1 more source

Adaptive Cut Selection in Mixed-Integer Linear Programming

Open Journal of Mathematical Optimization, 2023
Cutting plane selection is a subroutine used in all modern mixed-integer linear programming solvers with the goal of selecting a subset of generated cuts that induce optimal solver performance.
Turner, Mark, Koch, Thorsten, Serrano, Felipe, Winkler, Michael   +3 more
doaj   +1 more source

HEALTH CLAIM INSURANCE PREDICTION USING SUPPORT VECTOR MACHINE WITH PARTICLE SWARM OPTIMIZATION

Barekeng, 2023
The number of claims plays an important role the profit achievement of health insurance companies. Prediction of the number of claims could give the significant implications in the profit margins generated by the health insurance company.
Syaiful Anam, M. Rafael Andika Putra, Zuraidah Fitriah, Indah Yanti, Noor Hidayat, Dwi Mifta Mahanani   +5 more
doaj   +1 more source

On two symmetric Dai-Kou type schemes for constrained monotone equations with image recovery application

EURO Journal on Computational Optimization, 2023
The Dai-Kou method Dai and Kou (2013), [12] is efficient for solving unconstrained optimization problems. However, its modified variants are quite rare for constrained nonlinear monotone equations.
Kabiru Ahmed, Mohammed Yusuf Waziri, Abubakar Sani Halilu, Salisu Murtala   +3 more
doaj   +1 more source

A new iteration method for solving space fractional coupled nonlinear Schrödinger equations [PDF]

Iranian Journal of Numerical Analysis and Optimization, 2022
A linearly implicit difference scheme for the space fractional coupled nonlinear Schrödinger equation is proposed. The resulting coefficient matrix of the discretized linear system consists of the sum of a complex scaled identity and a symmetric positive ...
H. Aslani, D. Khojasteh Salkuyeh, M. Taghipour   +2 more
doaj   +1 more source

Optimal Sparse Control Formulation for Reconstruction of Noise-Affected Images

Axioms, 2023
We discuss the optimal control formulation for enhancement and denoising of satellite multiband images and propose to take it in the form of an L1 control problem for a quasi-linear parabolic equation with a nonlocal p[u] Laplacian and with a cost ...
Peter Kogut, Yaroslav Kohut
doaj   +1 more source

Application neural network approach for the estimation of heavy metal concentrations in the Inaouen watershed

Journal of Environmental Engineering and Landscape Management, 2022
This paper describes how the multilayer perceptron neural network (MLPNN) trained by the Broyden-Fletcher-Goldfarb-Shanno (BFGS) quasi-newton back-propagation approach was used to estimate heavy metal concentrations: Aluminum (Al), Lead (Pb), Copper (Cu)
Rachid El Chaal, Moulay Othman Aboutafail   +1 more
doaj   +1 more source