Results 31 to 40 of about 12,064,714 (186)

Sustainability and Value Transitions: The Strategic Role of Cross‐Sectoral Interconnectedness and Transition Brokers

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Climate economics is undergoing rapid transformation, reconfiguring the foundations of sustainability transitions. This study develops a systems‐based perspective that foregrounds the strategic role of cross‐sectoral interconnectedness and transition brokers in shaping these transitions.
Ionna Trofimova‐Elliot
wiley   +1 more source

Syarat Cukup Kekonvergenan Metode Newton-Raphson [PDF]

open access: yes, 2019
Pada skripsi ini akan dibahas penurunan metode Newton-Raphson. Selanjutnya diinvestigasi beberapa syarat cukup bagi kekonvergenan metode Newton-Raphson. Untuk mengilustrasikan syarat cukup kekonvergenan metode Newton-Raphson tersebut, diberikan beberapa ...
Devi, Sari Ramadhini
core   +1 more source

Historical Development of the Newton-Raphson Method [PDF]

open access: yes, 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  

Improved Newton-Raphson Methods for Solving Nonlinear Equations [PDF]

open access: yes, 2017
In this paper, we mainly study the numerical algorithms for simple root of nonlinear equations based on Newton-Raphson method. Two modified Newton-Raphson methods for solving nonlinear equations are suggested.
Pang, Lin, Fang, Liang
core   +1 more source

Three‐dimensional hardening‐softening elastoplastic modeling of nondilatant rock‐like materials with nonorthogonal flow rule

open access: yesDeep Underground Science and Engineering, EarlyView.
A novel three‐dimensional elastoplastic constitutive model is developed for nondilatant rock‐like materials under true‐triaxial stress conditions. A piecewise yield function captures the evolution of 3D yield surfaces during hardening‐softening processes, while a fractional‐order‐controlled nonorthogonal flow rule enables flexible regulation of ...
Jiacun Liu   +4 more
wiley   +1 more source

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

open access: yesJournal 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

Two Two‐Tier Stochastic Frontier Replications

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT We replicate the two foundational studies which proposed the two‐tier stochastic frontier model, first in the cross‐sectional setting and then for the fixed effects panel data model. We explore matters of software then and now, different mathematical formulations of the likelihood, and alternative current software tools.
Alecos Papadopoulos   +1 more
wiley   +1 more source

Analysis of Mechanical‐Electrical‐Hydraulic Coupled Vibration Response Characteristics of Thermal Control Circulating Pumps Supported by Water‐Lubricated Bearings

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT The operational reliability of thermal control circulation pumps is significantly restricted by the multi‐physics coupled environment. To reveal the vibration transmission mechanisms and dynamic response characteristics under multi‐field coupled excitations, a multi‐DOF coupled dynamic representation of the overall system, incorporating the ...
Jianfeng Luo   +4 more
wiley   +1 more source

Finite‐Difference Reduced Transfer Matrix Method for Multibody Systems With Rotating Beams

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Multibody systems with rotating beams serve as critical simplified models of core components in engineering systems; however, existing analytical and numerical methods have limitations in analyzing their complex dynamic behavior. This paper proposes the Finite‐Difference Reduced Multibody System Transfer Matrix Method (FD‐RMSTMM), which ...
Ziyao Ma   +3 more
wiley   +1 more source

Numerical and simulation analysis comparison of hydraulic network problem base on higher-order efficiency approach

open access: yesAlexandria Engineering Journal, 2021
The hydraulic network study is a real-life engineering problem extensively base on applied and computational approaches. Several numerical schemes are tested for defining of hydraulic pipe networks solution, such as, Hardy Cross Method, Newton Method and
Waseem Asghar Khan
doaj   +1 more source

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