Results 101 to 110 of about 97,762 (292)

Agglomeration Behavior of Nonmetallic Particles on the Surface of Si‐Killed Liquid Steel Using HT‐CSLM: An In Situ Investigation

open access: yessteel research international, EarlyView.
The in situ agglomeration behavior of semisolid Al–silicate inclusions in Si‐killed steel is studied using high‐temperature confocal scanning laser microscopy. Particle motion and interparticle forces at the steel/argon interface are quantified and compared with a modified capillary interaction model.
Suwam Kumar   +4 more
wiley   +1 more source

Computing the Projection on the Intersection of Linear Equality and Cardinality Constraints

open access: yesIEEE Access
In this paper, we introduce a novel approach to solve the vector projection problem under linear equality and cardinality constraints, termed the Quasi-Newton Lagrangian method. This approach employs a Lagrangian transformation to address linear equality
Xiao-Jing Wang, Zhen-Sheng Yu
doaj   +1 more source

Implicit updates in multistep quasi-Newton methods

open access: yes, 2001
We consider multistep quasi-Newton methods for unconstrained optimization. These methods were introduced by Ford and Moghrabi [1,2], who showed how interpolating curves could be used to derive a generalization of the secant equation (the relation ...
Ford, J.A., J.A. Ford
core   +1 more source

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

open access: yesStructural 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

Quasi-Newton Methods, Motivation and Theory

open access: yes, 1974
This paper is an attempt to motivate and justify quasi-Newton methods as useful modifications of Newton's method for general and gradient nonlinear systems of equations.
Dennis, John E., Jr., More, Jorge J.
core  

Stable factorized quasi-Newton methods for nonlinear least-squares problems

open access: yes, 2001
In this paper, we consider stable factorized quasi-Newton methods for solving nonlinear least-squares problems. Based on the QR decomposition of the Jacobian of the residual function, updating a rectangular correction matrix to the Jacobian is changed to
Fung Richard Ying Kit   +5 more
core   +1 more source

Pre‐task Vocabulary Support Enhances Lexical Learning but Dampens Positive Emotions: Interactive Task Implementation in English‐as‐a‐Foreign‐Language Classroom

open access: yesTESOL Quarterly, EarlyView.
Abstract This classroom study explored the effects of vocabulary support on collocation learning and affective responses in task‐based language teaching (TBLT) among English‐as‐a‐foreign‐language (EFL) learners at a Japanese university. For this purpose, 68 EFL learners completed two interactive information‐gap tasks under either vocabulary‐support or ...
Yuichi Suzuki, Sachiko Nakamura
wiley   +1 more source

Estimating crippling loss from hunting with multistate models: a case study on northern bobwhites

open access: yesWildlife Biology, EarlyView.
Hunting as a recreational pursuit provides an important ecosystem service worldwide. Harvest management plays a vital role in regulating wildlife take to ensure long‐term population sustainability and meet value‐based objectives (e.g. hunter satisfaction). However, managers rarely have complete control or observability of harvest mortality.
Amanda S. Cramer   +10 more
wiley   +1 more source

Investigating Breathing Dynamics of a 110 kV Oil‐Immersed Transformer Using Thermal‐Fluid‐Structure Interaction Modelling

open access: yesHigh Voltage, EarlyView.
ABSTRACT The breathing system of an oil‐immersed transformer is of vital importance for maintaining equilibrium between internal and external pressures, with any malfunction potentially disrupting the transformer's stable operation. This study develops a thermal–fluid–structure interaction (TFSI) model to simulate the breathing phenomenon in a 110 kV ...
Lujia Wang   +5 more
wiley   +1 more source

The End of Self‐Regulation: Will the Football Governance Act 2025 Fix the National Game?

open access: yesThe Modern Law Review, EarlyView.
The Football Governance Act 2025 is a watershed. It upends the model of self‐regulation that has defined how the game has been run in England and Wales for over a century‐and‐a‐half. The newly created Independent Football Regulator will exercise control over clubs, owners, and competition organisers.
Jan Zglinski
wiley   +1 more source

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