Results 101 to 110 of about 324,327 (273)

ANÁLISIS DE LA FRONTERA DE CONVERGENCIA EN MÉTODOS CUASI-NEWTON CON MATRICES DISPERSAS Y SU APLICACIÓN A LA GEOMECÁNICA DE VOLADURAS

Avances en Ciencias e Ingeniería
We delimit the convergence frontier of sparse–matrix quasi-Newton algorithms for rock-blasting simulations. Lip- schitz/Hölder bounds yield Kantorovich radii that mark when the secant matrix preserves contraction.
Fabian León, Luis Rojas, Cristian Gonzalez, Beatriz Hernández, José García   +4 more
doaj   +1 more source

A Formation Inversion Algorithm Based on Collaborative Fuzzy Gradient Neural Dynamics for Natural Gamma Logging While Drilling

CAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT A formation inversion algorithm with real‐time performance and accuracy is crucial for natural gamma logging while drilling (LWD). However, traditional inversion algorithms are often limited by high computational resource consumption and insufficient accuracy.
Juntao Liu, Ruoxiao Liu, Wenxin Li, Zhenming Su, Long Jin   +4 more
wiley   +1 more source

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

High 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, Guangyi Chen, Dong Shang, Xiang Zhang, Haitao Yang, Jianwen Zhang   +5 more
wiley   +1 more source

Action constrained quasi-Newton methods

, 2014
At the heart of Newton based optimization methods is a sequence of symmetric linear systems. Each consecutive system in this sequence is similar to the next, so solving them separately is a waste of computational effort. Here we describe automatic preconditioning techniques for iterative methods for solving such sequences of systems by maintaining an ...
Gower, Robert Mansel, Gondzio, Jacek
openaire   +2 more sources

Can prisons move people into better jobs? A look at correctional vocational training programs and sectoral employment outcomes

Criminology, EarlyView.
Abstract Three‐quarters of US prisons offer vocational training programs, which aim to place trainees in middle‐skills jobs in specific occupational sectors post‐release. These middle‐skills jobs may more effectively reduce recidivism than the jobs that normally characterize the labor market experience of the formerly incarcerated, yet whether ...
Britte van Tiem
wiley   +1 more source

On a general convergence for Broyden like update method

International Journal of Mathematics and Mathematical Sciences, 1991
The role of Broyden's method as a powerful quasi-Newton method for solving unconstrained optimization problems or a system of nonlinear algebraic equations is well known. We offer here a general convergence criterion for a method akin to Broyden's method
Rabindranath Sen, Rini Chattopadhyay, Tripti Saha   +2 more
doaj   +1 more source

Advancing Employee Voice Through Insights From Democratic Innovations

Human Resource Management Journal, EarlyView.
ABSTRACT Employee voice has long attracted interest from academics, policymakers, and practitioners in light of its myriad benefits. To date, employee voice researchers have identified a wide array of voice practices that are organized and understood through a core set of dimensions.
Simon Pek, Lorin Busaan
wiley   +1 more source

Survival Remains High in Griffon Vultures 40 Years After Reintroduction

Animal Conservation, EarlyView.
The reintroduction of the Griffon vulture (Gyps fulvus) in French Grands Causses in 1981 is largely regarded as a significant translocation success. 40 years of quality data from intensive monitoring allows us to investigate the survival rates in this long‐lived population on the long term, but also to reflect on the crucial role of adaptive management
Charlotte Lorand, Jean‐Baptiste Mihoub, Olivier Duriez, Léa Giraud, Philippe Lécuyer, Bruno Descaves, Robert Straughan, François Sarrazin   +7 more
wiley   +1 more source

Modifications for Quasi-Newton Method and Its Spectral Algorithm for Solving Unconstrained Optimization Problems

مجلة بغداد للعلوم
In this paper, two modifications for spectral quasi-Newton algorithm of type BFGS are imposed. In the first algorithm, named SQNEI, a certain spectral parameter is used in such a step for BFGS algorithm differs from other presented algorithms.
Evar Lutfalla Sadraddin, Ivan Subhi Latif   +1 more
doaj   +1 more source

Design‐based implementation research for digitally enabled education reform: Teacher professional development in Tanzania

British Journal of Educational Technology, EarlyView.
Abstract Design‐based implementation research (DBIR) offers a promising approach for refining and theorising the implementation and scale‐up of education interventions. However, integrating technology into national education reforms in resource‐constrained contexts adds complexity, involving multiple government bodies, implementers and researchers with
Taskeen Adam, Sara Hennessy, Kristeen Chachage, Winston Massam, Calvin Swai, Fredrick Mtenzi, Jonathan Hegwa Paskali, Aneth Komba, Saalim Koomar, Fika Mwakabungu   +9 more
wiley   +1 more source