Results 51 to 60 of about 11,948,358 (222)

Two-dimensional meshless solution of the non-linear convection diffusion reaction equation by the Local Hermitian Interpolation method

Ingeniería y Ciencia, 2013
A meshless numerical scheme is developed for solving a generic version of the non-linear convection-diffusion-reaction equation in two-dimensional domains.
Carlos A Bustamante Chaverra, Henry Power, Whady F Florez Escobar, Alan F Hill Betancourt   +3 more
doaj   +1 more source

Sensitivity study on accuracy and relevant parameters in numerical modeling of internal tendon breaks

Structural Concrete, EarlyView.
Abstract This study investigates the numerical modeling of internal tendon breaks in prestressed concrete structures and evaluates the key parameters affecting accuracy. A combined approach is followed, involving global sensitivity analysis via the Elementary Effects Method and subsequent model calibration using experimental data from distributed fiber‐
Aeneas Paul, David Sanio, Peter Mark
wiley   +1 more source

Example of Newton-Raphson method (MathsCasts)

, 2016
A demonstration of how to use the Newton-Raphson method: to find the positive solution of the equation x^2 =
Vida Weiss
core   +1 more source

Simplified analysis of concentrically loaded reinforced concrete columns

Structural Concrete, EarlyView.
Abstract Reinforced concrete columns subjected to concentric and eccentric compression loads are typically treated in an identical manner, taking into account both the imperfect shape, creep, and the second order effects, as described for example in fib Model Code 2020 and Eurocode 2.
Lili Eszter Hlavicka‐Laczák, László Péter Kollár   +1 more
wiley   +1 more source

Caesarean Risk Prediction using Newton-Raphson Model: A Retrospective Cohort Study [PDF]

Journal of Clinical and Diagnostic Research
Introduction: The global rise in Caesarean section (C-section) rates is a pressing public health concern. A logistic regression model refined through the Newton-Raphson algorithm enhances precision and stability in predicting Caesarean Section (CS) risk.
Prachi Saoji, Lakshmi Madireddy, Ajeet Saoji, Kartik Khurana   +3 more
doaj   +1 more source

Energy Flows Balance of Electric‐Heating Interconnected Microgrids Under Grid‐Forming Converter Integration Based on Heterogeneous Graph Convolutional Network

Energy Internet, EarlyView.
ABSTRACT The combination of electric‐heating interconnected microgrids (EHIMs) with grid‐forming converters (GFMCs) offers a highly promising approach to improving energy management within decentralised energy systems. Despite its potential, precisely modelling and analysing energy flow in such systems remains a considerable challenge due to the ...
Ji Li, Jinduo Yang, Yang Kou, Qingyuan Zhang, Xiao Hu, Yang Gao, Fei Fei Li, Wei Le Liang, Yiyan Li, Ming Li, Lei Xu, Kepaiyitulla Tursun, Yan Qing Peng, Ying Li Huo, Yun Shan Wang, Ze Zhen Zhang   +15 more
wiley   +1 more source

Sketched Newton--Raphson

, 2022
International audienceWe propose a new globally convergent stochastic second-order method. Our starting point is the development of a new sketched Newton-Raphson (SNR) method for solving large scale nonlinear equations of the form F (x) = 0 with F : R p →
Lazaric, Alessandro, Gower, Robert, M, Yuan, Rui   +2 more
core   +1 more source

Fast Decoupled Multi-energy Flow Calculation for Integrated Energy System

Journal of Modern Power Systems and Clean Energy, 2020
In recent years, as a promising option to improve the overall efficiency of energy utilization and absorptive capacity of renewable energies, the integrated energy system (IES) has raised great interest in academies and industries. Multi-energy flow (MF)
Yanbo Chen, Junyuan Zhao, Jin Ma
doaj   +1 more source

Beyond profit maximization: The effect of cooperative governance on insolvency risk in the Brazilian supplementary healthcare industry

Annals of Public and Cooperative Economics, EarlyView.
Abstract Traditional bankruptcy literature has primarily focused on commercial enterprises, often overlooking the unique dynamics of cooperatives and other small organizations. This study addresses this g ap by developing a predictive model for insolvency risk within Brazil's supplementary health sector, encompassing both for‐profit and not‐for‐profit ...
Thiago de Oliveira Victorino, Arthur Gomes Nery, Rodrigo Lima Rangel   +2 more
wiley   +1 more source

The Sine-Cosine Wavelet and Its Application in the Optimal Control of Nonlinear Systems with Constraint [PDF]

Journal of Electrical and Computer Engineering Innovations, 2013
In this paper, an optimal control of quadratic performance index with nonlinear constrained is presented. The sine-cosine wavelet operational matrix of integration and product matrix are introduced and applied to reduce nonlinear differential equations ...
R. Hajmohammadi, H. NasiriSoloklo, M.M. Farsangi   +2 more
doaj   +1 more source