Results 21 to 30 of about 134,266 (306)

Analysis of Wide-Frequency Dense Signals Based on Fast Minimization Algorithm

Energies, 2022
To improve the detection speed for wide-frequency dense signals (WFDSs), a fast minimization algorithm (FMA) was proposed in this study. Firstly, this study modeled the WFDSs and performed a Taylor-series expansion of the sampled model.
Zehui Yuan, Zheng Liao, Haiyan Tu, Yuxin Tu, Wei Li   +4 more
doaj   +1 more source

Augmented Lagrangian method for imposing nonlinear multi freedom constraints in static analysis for frames using FEM [PDF]

E3S Web of Conferences, 2021
This paper focuses on the treatment of nonlinear multi freedom constraints using an augmented Lagrangian method in finite element analysis of frames. The process of imposing boundary constraints is developed by changing the assembly stiffness equation to
Bich Quyen Vu Thi, Tien Dao Ngoc, Van Tran Thi Thuy, Van Dat Pham   +3 more
doaj   +1 more source

Computational methods of Gaussian Particle Swarm Optimization (GPSO) and Lagrange Multiplier on economic dispatch issues (case study on electrical system of Java-Bali IV area)

EPJ Web of Conferences, 2014
The objective in this paper is about economic dispatch problem of electric power generation where scheduling the committed generating units outputs so as to meet the required load demand at minimum operating cost, while satisfying all units and system ...
Komsiyah S.
doaj   +1 more source

An improved interval finite element method based on the element-by-element technique for large truss system and plane problems

Advances in Mechanical Engineering, 2018
The interval finite element method based on the element-by-element technique is proved to be a rigorous and efficient method for considering interval uncertainties.
Jingbo Su, Yihuan Zhu, Jinpeng Wang, Ang Li, Ganquan Yang   +4 more
doaj   +1 more source

Efficient Wald Tests for Fractional Unit Roots [PDF]

, 2007
In this article we introduce efficient Wald tests for testing the null hypothesis of the unit root against the alternative of the fractional unit root.
Velasco Gómez, Carlos, Ignacio N Lobato, Carlos Velasco, Lobato, Ignacio N., Velasco, Carlos   +4 more
core   +1 more source

MODEL OPTIMASI KEUNTUNGAN PRODUKSI MENGGUNAKAN METODE REGRESI LAGRANGE MULTIPLIER [PDF]

, 2021
ABSTRAK MODEL OPTIMASI KEUNTUNGAN PRODUKSI MENGGUNAKAN METODE REGRESI LAGRANGE MULTIPLIER Oleh: Dhea Livita Cahya Lagrange multiplier adalah metode yang digunakan untuk menyelesaikan masalah optimasi dan menentukan harga/nilai minimum ...
DHEA, LIVITA CAHYA
core   +1 more source

Quantum dynamics of Lagrange multipliers

Physical Review D, 2023
When implementing a non-linear constraint in quantum field theory by means of a Lagrange multiplier, $ł(x)$, it is often the case that quantum dynamics induce quadratic and even higher order terms in $ł(x)$, which then does not enforce the constraint anymore. This is illustrated in the case of Unimodular Gravity, where the constraint is that the metric
Enrique Álvarez, Jesús Anero, Carmelo P. Martin, Eduardo Velasco-Aja   +3 more
openaire   +3 more sources

A Nonlinear Lagrange Algorithm for Stochastic Minimax Problems Based on Sample Average Approximation Method

Journal of Applied Mathematics, 2014
An implementable nonlinear Lagrange algorithm for stochastic minimax problems is presented based on sample average approximation method in this paper, in which the second step minimizes a nonlinear Lagrange function with sample average approximation ...
Suxiang He, Yunyun Nie, Xiaopeng Wang
doaj   +1 more source

Numerical Solution of Modified Cubic-Boussinesq Equation using He-Kamal Transform with Lagrange Multiplier [PDF]

مجلة التربية والعلم
Cubic-Boussinesq equation is very crucial for modeling nonlinear wave phenomena, capturing intricate dynamics like wave breaking and soliton interactions. Its significance lies in its ability to describe the behavior of waves in diverse physical contexts,
Oludapo Olubanwo, Julius Adepoju, Sefiu Onitilo, Abiodun Ajani, Olawale Sotonwa, Senayon Idowu, Jamiu Badru   +6 more
doaj   +1 more source

Study of a New Mixed Weak Galerkin Formulation for the Electric Field

Mathematics
In this paper, we present a new mixed weak Galerkin FEM for Maxwell’s equations in the primary electrostatic field–Lagrange multiplier. Our numerical scheme is equipped with stable finite elements composed of polynomials of degree ℓ for the electrostatic
Bader Saad Alshammari, Abdelhamid Zaghdani   +1 more
doaj   +1 more source