منابع مشابه
New Tetrahedrally Close-Packed Structures
We consider mathematical models of foams and froths, as collections of surfaces which minimize area under volume constraints. Combinatorially, because of Plateau’s rules, a foam is dual to some triangulation of space. We examine the class of foams known as tetrahedrally close-packed (TCP) structures, which includes the one used by Weaire and Phelan in their counterexample to the Kelvin conjectu...
متن کاملPairwise Correlations in Layered Close-Packed Structures
Given a description of the stacking statistics of layered close-packed structures in the form of a hidden Markov model, analytical expressions are developed for the pairwise correlation functions between the layers. These may be calculated analytically as explicit functions of model parameters or the expressions may be used as a fast, accurate and efficient way to obtain numerical values. Sever...
متن کاملBeating Poisson encapsulation statistics using close-packed ordering.
Loading drops with discrete objects, such as particles and cells, is often necessary when performing chemical and biological assays in microfluidic devices. However, random loading techniques are inefficient, yielding a majority of empty and unusable drops. We use deformable particles that are close packed to insert a controllable number of particles into every drop. This provides a simple, fle...
متن کاملDiffusional Atomic-Ordering Kinetics of Close-Packed Solid Solutions: Models for L12 and D019 Phases
1. Introduction Ordering in solid solutions is a topic of growing technological and scientific interest within the field of material science. This is because of the advantageous high temperature and corrosion properties of alloys which are linked to the effect of long-range ordering [1]. Long-range order kinetics is one of the diffusion processes occurring within the atomic ranges. X-ray diffra...
متن کاملAssortative Mixing in Close-Packed Spatial Networks
BACKGROUND In recent years, there is aroused interest in expressing complex systems as networks of interacting nodes. Using descriptors from graph theory, it has been possible to classify many diverse systems derived from social and physical sciences alike. In particular, folded proteins as examples of self-assembled complex molecules have also been investigated intensely using these tools. How...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics Supplement
سال: 1994
ISSN: 0375-9687
DOI: 10.1143/ptps.115.95