Results 111 to 120 of about 11,355 (304)
Advanced Engineering Materials, EarlyView.Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi +2 more
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On Riesz-Caputo Formulation for Sequential Fractional Variational Principles
Abstract and Applied Analysis, 2012 This paper deals with sequential Riesz-Caputo fractional variational problems with and without the presence of delay in the state variables and their derivatives. In both cases the necessary conditions for the optimal control are reported.
Fahd Jarad +2 more
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Influence of an Oxygen‐Free Atmosphere on Diamond‐Single‐Grain Scratching of Ti–6Al–4V
Advanced Engineering Materials, EarlyView.Single‐grain scratching of Ti–6Al–4V is investigated under controlled, oxygen‐free, and ambient atmospheres using a novel experimental setup with in situ high‐speed imaging. The approach enables direct observation of chip formation and adhesion under suppressed oxidation.
Berend Denkena +2 more
wiley +1 more source
A Survey of Non-Linear PDE-Based Structural Image Interpolation Models [PDF]
Memoirs of the Scientific Sections of the Romanian Academy, 2019 An overview of nonlinear partial differential equation (PDE)-based structural inpainting approaches is provided in this paper. The main image interpolation techniques based on variational models are described first.
Tudor Barbu
doaj
Axioms, 2014 This article presents a simple derivation of optimization models for reaction networks leading to a generalized form of the mass-action law, and compares the formal structure of Minimum Information Divergence, Quadratic Programming and Kirchhoff type ...
Julio Michael Stern, Fabio Nakano
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Variational principles for complex equations
, 1976 This paper presents variational principles for equations Lψ = ƒ(ψ), where ƒ is a complex function of the complex vector ψ and L is a linear ...
Arthurs, A.M., Anderson, N.
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Variational Principle for Mass Transport
Physical Review Letters, 2018 A variation principle for mass transport in solids is derived that recasts transport coefficients as minima of local thermodynamic average quantities. The result is independent of diffusion mechanism, and applies to amorphous and crystalline systems.
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Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys
Advanced Engineering Materials, EarlyView.This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa +9 more
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Gibbs variational principles and Boltzmann irreversible theorem
Revista Brasileira de Ensino de FísicaWe analyze the Gibbs variational principles associated with the probability distributions of (i) an isolated system and (ii) a system at constant temperature.
Mário J. de Oliveira, Silvio R. Salinas
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Variational principles and the patch test
International Journal for Numerical Methods in Engineering, 1974 AbstractThe patch test is shown to be contained in the variational formulations of the finite element methods at the assembling level, all of which require the vanishing of the virtual work of interface connection loads. By a systematic introduction of stress generating functions, attention is drawn to the fact that any given finite element model can ...
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