Results 41 to 50 of about 18,331 (226)

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

, 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, Xu Chengxian, Richard Ying Kit, Fung, Chengxian, Xu, Xiaofang, Ma, Ma Xiaofang   +5 more
core   +1 more source

Quasi-static crack propagation by Griffith's criterion [PDF]

, 2008
We consider the propagation of a crack in a brittle material along a prescribed crack path and define a quasi-static evolution by means of stationary points of the free energy. We show that this evolution satisfies Griffith's criterion in a suitable form
Negri, Matteo, Ortner Christoph, Ortner, Christoph, Negri, M, Ortner, C   +4 more
core   +1 more source

Erwin Schrödinger und die Versuchungen der (Wissenschafts‐)Biografik: Vorurteilsgefüge und Mechanismen der Skandalisierung

Berichte zur Wissenschaftsgeschichte, EarlyView.
Since late 2021, serious allegations have been made against physicist Erwin Schrödinger, ranging from pedophilia to serial sexual abuse. These accusations have significantly tarnished the Nobel Prize winner's public reputation. The ongoing debate has repeatedly raised the question of whether, and to what extent, these grave allegations are justified ...
Magdalena Gronau, Martin Gronau
wiley   +1 more source

Artificial Intelligence–Driven and Digital Practices for Circular Business and Finance: Insights for Advancing Hubs for Circularity

Business Strategy and the Environment, EarlyView.
ABSTRACT The emerging concept of Hubs for Circularity (H4Cs) presents an opportunity to create collaborative, self‐sustaining regional industrial ecosystems that drive circular economy transitions at scale. However, the operationalisation of H4Cs faces financial, organisational and data‐driven challenges.
Aditya Tripathi, Marcos R. Machado, Laura Spierdijk, Devrim Murat Yazan   +3 more
wiley   +1 more source

Constrained regularization methods for ozone profile retrieval from UV/VIS nadir spectrometers

, 2009
In this paper we present several constrained regularization methods for ozone profile retrieval from UV/VIS nadir sounding instruments such as GOME, SCIAMACHY, OMI and GOME-2.
Doicu, Adrian, Loyola, Diego, Schüssler, Olena   +2 more
core   +1 more source

Optimization of 3D‐Printed Structured Packings—Current State and Future Developments

Chemie Ingenieur Technik, EarlyView.
This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke, Sebastian Blauth, Christian Leithäuser, Thomas Grützner   +3 more
wiley   +1 more source

Globalized inexact proximal Newton-type methods for nonconvex composite functions

, 2020
Optimization problems with composite functions consist of an objective function which is the sum of a smooth and a (convex) nonsmooth term. This particular structure is exploited by the class of proximal gradient methods and some of their generalizations
Lechner, Theresa, Kanzow, Christian
core   +1 more source

Newton methods for solving two classes of nonsmooth equations [PDF]

, 2001
summary:The paper is devoted to two systems of nonsmooth equations. One is the system of equations of max-type functions and the other is the system of equations of smooth compositions of max-type functions.
Gao, Yan
core   +1 more source

Exploring Tradeoffs in Syngas Production With Solid‐Oxide Electrolysis via Multi‐Objective Optimization

Chemie Ingenieur Technik, EarlyView.
This work applies multi‐objective optimization to investigate trade‐offs between different objectives in syngas production with solid‐oxide cell co‐electrolysis. Two system designs are investigated. By systematically exploring tradeoffs between different objectives, insights, and comparisons of the operation of these designs are achieved.
Gbenga Jerome, Victor Selmert, An Phuc Dam, Nicolas Kruse, Leandros Paschalidis, Remzi Can Samsun, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source

Broyden quasi-Newton secant-type method for solving constrained mixed generalized equations

Journal of Nonlinear and Variational Analysis
This paper presents a novel variant of the Broyden quasi-Newton secant-type method aimed at solving constrained mixed generalized equations, which can include functions that are not necessarily differentiable. The proposed method integrates the classical secant approach with techniques inspired by the Conditional Gradient method to handle constraints ...
da Silva, P. C. jun., Ferreira, O. P., Silva, G. N.   +2 more
openaire   +2 more sources