منابع مشابه
Varinace-Based Sensitivity Analysis of Deterministic Model
The study of many scientific and natural phenomena in laboratory condition is sometimes impossible, therefore theire expresed by mathemathical models and simulated by complex computer models (codes). Running a computer model with different inputs is called a computer expriment. Statistical issues allocated a wide range of applications for computer expriment to itself. In this paper, ...
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The exponent λ that describes the decay of the autocorrelation function A(t) in a phase ordering system, A(t) ∼ L, where d is the dimension and L the characteristic length scale at time t, is calculated exactly for the time-dependent Ginzburg-Landau equation in d = 1. We find λ = 0.399 383 5 . . .. We also show explicitly that a small bias of positive domains over negative gives a magnetization...
متن کاملA Unified Model of Microsegregation and Coarsening
than that formed with a large back-diffusion (large dilution). DURING the solidification of a dendritic alloy, the solThere are, however, other micro scale mechanisms besides ute rejected at the solid/liquid interface is redistributed, at back-diffusion that control the dilution of the liquid phase, the local scale of the secondary dendrite arm spacings (10 in particular the coarsening of the m...
متن کاملCoarsening and persistence in the voter model.
The theory of phase separation, or domain coarsening, has undergone a significant development in the last three decades [1]. The most important finding is that well-defined ordered domains arise and grow with time in such a way that the coarsening process exhibits scaling. In other words, at the late stages of the evolution the system is characterized by a single length scale L(t) that gives a ...
متن کاملObservations of coarsening of air voids in a polymer-highly-soluble crystalline matrix during dissolution.
A combination of magnetic resonance imaging and x-ray microcomputed tomography has been used to visualize the development of the internal micro-structure within compressed tablets made from a combination of insoluble particles (Eudragit, a polymer) and soluble particles (diltiazem hydrochloride, a drug), during dissolution in water. Air voids in the tablet are seen to coarsen. The size distribu...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 1997
ISSN: 1063-651X,1095-3787
DOI: 10.1103/physreve.55.252