Results 81 to 90 of about 157,855 (267)
Advanced Engineering Materials, EarlyView.A combined finite element and phase‐field approach predicts the evolution of microstructure during the directional solidification of Ni‐based superalloys. The model reveals how withdrawal rate, temperature gradient, and wall thickness control the dendrite spacing, highlighting the strong effect of surface regions in thin sections where dendrite growth ...
Sean Böhm +3 more
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Advanced Engineering Materials, EarlyView.Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan +5 more
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The representation of oneself in political-narrative discourses: from lambda to ethos
Signo y Seña, 2018 In this article we analyze, from a polyphonic and non-referential perspective of enunciation (Ducrot 1984), a set of political-narrative discourses, that is, micronarration where the political speaker talks about himself in the recent past.
Ana Soledad Montero
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Robustness with respect to exponents for nonautonomous reaction–diffusion equations
Electronic Journal of Qualitative Theory of Differential Equations, 2018 In this work we consider a family of nonautonomous problems with homogeneous Neumann boundary conditions and spatially variable exponents with equation of the form \begin{equation*} \frac{\partial u_{\lambda}}{\partial_t}(t)-\operatorname{div}\left(D(t)
Rodrigo Samprogna, Jacson Simsen
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$^{6}_{\Lambda\Lambda}$He as a $\Lambda\Lambda$ interaction constraint
, 1997 The Nijmegen OBE potential D is SU(3) rotated to model the strangeness -2 sector of the baryon-baryon force. Soft core repulsion is introduced to regularize the singular nature of the OBE functions. The strength of the $^1$S$_0$ $t=0$ interaction is adjusted to model three scenarios: (1) a bound state, (2) a narrow virtual, or antibound, state, and (3)
Carr, S. B., Afnan, I. R., Gibson, B. F.
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The $\lambda\Lambda$ interaction and the reaction $\Xi^- + d \to n + \Lambda + \Lambda$
, 1997 Comment: 5 pages and 9 eps ...
Carr, S. B., Afnan, I. R., Gibson, B. F.
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Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
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Tsukuba Journal of Mathematics, 1992 Throughout this paper we assume that \(\Lambda\) is a finite dimensional local algebra over an algebraically closed field \(K\). By considering certain subgroups of the Hochschild cohomology groups of the \(\Lambda\)-bimodule \(\Lambda \otimes \Lambda\) for a generalized biserial commutative algebra \(\Lambda\) the author proved [in J. Algebra 154, No.
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Mathematica Bohemica, 1997 Let \(a, b\) be elements of a poset \((P, \leq).\) Let \(U(a, b) := \{ x\in P; a\leq x \;\& \;b\leq x\},\) \(L(a, b) := \{ x\in P; x\leq a \^^M\&\;x\leq b\}.\) The poset \((P, \leq)\) is called a \(\lambda \)-poset if there is a (fixed) choice function \(\lambda \) such that \(\lambda (L(a, b)) = a\) and \(\lambda (U(a, b)) = b,\) provided \(a\leq b.\)
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
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