Results 81 to 90 of about 6,583,849 (249)

Optimal Boundary-Flux Control of a Sharp Moving Interface in the Classical Two-Phase Stefan Problem

open access: yesAxioms
In this paper, we study the optimal boundary control of solidification governed by the classical two-phase Stefan problem with a sharp moving interface.
Khalid Ali Alanezy, Jihad Souissi
doaj   +1 more source

Stability in the Stefan Problem with Surface Tension (I)

open access: yes, 2010
We develop a high-order energy method to prove asymptotic stability of flat steady surfaces for the Stefan problem with surface tension - also known as the Stefan problem with Gibbs-Thomson correction.
Guo, Yan, Hadzic, Mahir; id_orcid
core   +1 more source

Circular Economy durch moderne Chemie – aktuelle Forschung zu Nachhaltigkeit experimentell im Schülerlabor erfahren

open access: yesCHEMKON, EarlyView.
Die Circular Economy gilt als zentrales Leitbild für eine nachhaltige Ressourcennutzung und sollte daher stärker in der naturwissenschaftlichen Bildung verankert werden. Der Artikel stellt ein Schülerlaborprogramm im TüChemLab vor, das Schülerinnen und Schülern den Beitrag moderner Chemie zu einer Circular Economy anhand aktueller Forschung vermittelt.
Alexander Fritz, Stefan Schwarzer
wiley   +1 more source

Self-similar solutions of a multi-phase Stefan problem on the half-line

open access: yesСовременная математика: Фундаментальные направления
In this paper, we study self-similar solutions of the multiphase Stefan problem for the heat equation on the half-line x 0 with constant initial data and Dirichlet or Neumann boundary conditions. In the case of the Dirichlet boundary condition, we prove
E. Yu. Panov
doaj   +1 more source

An H1-Galerkin method for a Stefan problem with a quasilinear parabolic equation in non-divergence form

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
Optimal error estimates in L2, H1 and H2-norm are established for a single phase Stefan problem with quasilinear parabolic equation in non-divergence form by an H1-Galerkin procedure.
A. K. Pani, P. C. Das
doaj   +1 more source

Captivated by Kinesin

open access: yesCytoskeleton, EarlyView.
ABSTRACT Few proteins have inspired as much curiosity as kinesin. Since its discovery 40 years ago, kinesin has become one of the best understood molecular machines in biology, yet it continues to reveal new questions about how cells organize and move their contents.
Ronald D. Vale
wiley   +1 more source

"Jede Gefährdung wird zur Gnade." Zum Motiv des Künstlers in der Krise bei Stefan Zweig

open access: yes, 2022
L'articolo analizza il motivo della crisi dell'artista in tre testi diversi di Stefan ...
Arturo Larcati
core   +1 more source

Work as a Lever for Sustainability Transitions: Measuring Experienced Workplace Sustainability and Its Link to Agency and Well‐Being

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Humanity's environmental and social trajectory is substantially shaped by routinised decision‐making in professional contexts. At work, individuals engage in public‐sphere actions, simultaneously embedded in structural conditions limiting or catalysing potential impact. Despite its relevance for societal learning and sustainability transitions,
Jorrit Holst   +3 more
wiley   +1 more source

Compact attractors for a Stefan problem with kinetics

open access: yesElectronic Journal of Differential Equations, 2002
We prove existence of a unique bounded classical solution for a one-phase free-boundary problem with kinetics for continuous initial conditions. The main result of this paper establishes existence of a compact attractor for classical solutions of the ...
Michael L. Frankel, Victor Roytburd
doaj  

A Framework for Supplier Management Based on Environmental, Social, and Governance Criteria for Small and Medium‐Sized Enterprises

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Corporate sustainability, grounded in environmental, social, and governance (ESG) dimensions, has become a strategic imperative for firms seeking competitiveness and resilience. In supply chain management, supplier selection is a key mechanism for translating ESG principles into practice.
Steicy de Souza Jorge Laber   +4 more
wiley   +1 more source

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