Results 51 to 60 of about 284,723 (126)

Evaluation of Flow Rate Correction in Water Pipeline Distribution Network by Two Numerical Methods of Solution

Journal of Applied Sciences and Environmental Management, 2019
This study evaluates flow rate correction and approximate flow rates in  loops for three different case studies of closed looped pipe distribution network systems using Hardy Cross and Newton Raphson.
OH Lasisi, JR Adewumi, KH Lasisi
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

Historical Development of the Newton-Raphson Method [PDF]

, 1995
This expository paper traces the development of the Newton-Raphson method for solving nonlinear algebraic equations through the extant notes, letters, and publications of Isaac Newton, Joseph Raphson, and Thomas Simpson.
Ypma, Tjalling
core  

Trusses Nonlinear Problems Solution with Numerical Methods of Cubic Convergence Order

Trends in Computational and Applied Mathematics, 2018
A large part of the numerical procedures for obtaining the equilibrium path or load-displacement curve of structural problems with nonlinear behavior is based on the Newton-Raphson iterative scheme, to which is coupled the path-following methods.
Luiz Antonio Farani de Souza, Emerson Vitor Castelani, Wesley Vagner Inês Shirabayashi, Angelo Aliano Filho, Roberto Dalledone Machado   +4 more
doaj   +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

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

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

Intelligent Control for Maximum Power Point Tracking of Photovoltaic Power Generation Based on Local Reinforcement Learning Strategy Improving Newton-Raphson-Based Optimizer

Taiyuan Ligong Daxue xuebao
【Purposes】 Aiming at the maximum power point tracking (MPPT) problem of photovoltaic power generation, a strong control method based on intelligent optimization algorithm is proposed.【Methods】 The Newton-Raphson-based optimizer discussed in this paper ...
XIN Bingqing, WANG Yanfeng, SUN Junwei
doaj   +1 more source

Model fit and parameter uncertainty in amortized variational inference based item response theory

British Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Amortized variational inference (AVI) has become a popular, computationally efficient alternative to marginal maximum likelihood estimation (MML) for estimating high‐dimensional item response theory models on large datasets. However, currently the AVI framework lacks methods to assess model fit and determine parameter uncertainty.
K. Veldkamp, R. P. P. P. Grasman, R. Debelak, D. Molenaar   +3 more
wiley   +1 more source

Comparativo entre os métodos de Newton-Raphson e das raízes múltiplas no cálculo de raízes de funções [PDF]

, 2018
Artigo AcadêmicoNão possuiÉ comum surgir em diversas ciências problemas que exijam a obtenção de raízes de funções ou suas aproximações. Assim, esse trabalho visa estudar e comparar dois dos métodos numéricos conhecidos para obtenção dessas raízes de ...
Souza, Quézia Emanuelly de Oliveira
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