Structural characterization and statistical properties of jammed soft ellipsoid packing

Soft Matter ◽  
2021 ◽  
Author(s):  
Yinfei Chen ◽  
Ming Yuan ◽  
Zhichao Wang ◽  
Yu Zhao ◽  
Jianqi Li ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Random Packing ◽  
Statistical Properties ◽  
Particle Packing ◽  
Hard Particle

Using MRI techniques, random packing structures of soft ellipsoids are reconstructed, showing drastically different statistical properties compared with hard-particle packing.

scholarly journals MULTI-PARTICLE STRUCTURES IN NON-SEQUENTIALLY REORGANIZED HARD SPHERE DEPOSITS

2001 ◽  
Vol 04 (04) ◽  
pp. 289-297 ◽  
Author(s):  
LUIS A. PUGNALONI ◽  
G. C. BARKER ◽  
ANITA MEHTA
Keyword(s):  
Structural Properties ◽  
Hard Sphere ◽  
Distribution Functions ◽  
Particle Packing ◽  
Flow Instabilities ◽  
Granular Systems ◽  
Hard Particle ◽  
Restructuring Process

We have examined extended structures, bridges and arches, in computer generated, non-sequentially stabilized, hard sphere deposits. The bridges and arches have well-defined distributions of sizes and shapes. The distribution functions reflect the contraints associated with hard particle packing and the details of the restructuring process. A subpopulation of string-like bridges has been identified. Bridges are fundamental microstructural elements in real granular systems and their sizes and shapes dominate considerations of structural properties and flow instabilities such as jamming.

Visualization of Random Particle Packing Model for Resin Concrete

2012 ◽  
Vol 217-219 ◽  
pp. 1483-1486 ◽  
Author(s):  
Kun Zhao ◽  
Shu Min Wan ◽  
Bin Lin
Keyword(s):  
3D Model ◽  
Random Packing ◽  
Particle Packing ◽  
The Other ◽  
Micro Structure ◽  
Other Hand ◽  
Packing Model ◽  
Limited Applicability ◽  
Packing Method ◽  
Random Particle

Particle packing model are always utilized to investigate and predict micro structure performance of material. On one hand, considering 3 classical packing methods, it’s found that random packing method for model of resin concrete is the most suitable. 3D Particle packing model on Matlab is realized through compiling programs, then converted into Ansys and study on porosity of it proves the correctness of the packing model. On the other hand, different from others’ applying Walraven J.C Equation with a quite limited applicability to getting slice, this paper proposes that slice directly from the 3D model is more accurate and scientific, which is also managed to realize on both Matlab and Ansys.

scholarly journals Structural Characterization and Statistical Properties of Two-Dimensional Granular Systems During the Compaction

2011 ◽  
Vol 120 (2) ◽  
pp. 246-251
Author(s):  
S. Živković ◽  
Z.M. Jakšić ◽  
D. Arsenović ◽  
Lj. Budinski-Petković ◽  
S.B. Vrhovac
Keyword(s):  
Structural Characterization ◽  
Statistical Properties ◽  
Granular Systems ◽  
Two Dimensional

Phase behavior of cationic and anionic surfactants at low concentrations

1992 ◽  
Vol 50 (1) ◽  
pp. 694-695
Author(s):  
E. Naranjo
Keyword(s):  
Phase Behavior ◽  
Structural Characterization ◽  
Dynamic Systems ◽  
Anionic Surfactants ◽  
Intermolecular Forces ◽  
Stable Form ◽  
Surfactant Mixtures ◽  
Low Concentrations ◽  
Cationic And Anionic Surfactants ◽  
General Method

Equilibrium vesicles, those which are the stable form of aggregation and form spontaneously on mixing surfactant with water, have never been demonstrated in single component bilayers and only rarely in lipid or surfactant mixtures. Designing a simple and general method for producing spontaneous and stable vesicles depends on a better understanding of the thermodynamics of aggregation, the interplay of intermolecular forces in surfactants, and an efficient way of doing structural characterization in dynamic systems.

New ultrastructural findings about Borrelia burgdorferi by cryofixation, negative staining, thin sectioning and scanning techniques

1990 ◽  
Vol 48 (3) ◽  
pp. 582-583
Author(s):  
S. F. Hayes ◽  
M. D. Corwin ◽  
T. G. Schwan ◽  
D. W. Dorward ◽  
W. Burgdorfer
Keyword(s):  
Lyme Disease ◽  
Borrelia Burgdorferi ◽  
Structural Characterization ◽  
Negative Staining ◽  
Low Speed ◽  
Thin Sectioning ◽  
Ultrastructural Findings

Characterization of Borrelia burgdorferi strains by means of negative staining EM has become an integral part of many studies related to the biology of the Lyme disease organism. However, relying solely upon negative staining to compare new isolates with prototype B31 or other borreliae is often unsatisfactory. To obtain more satisfactory results, we have relied upon a correlative approach encompassing a variety EM techniques, i.e., scanning for topographical features and cryotomy, negative staining and thin sectioning to provide a more complete structural characterization of B. burgdorferi.For characterization, isolates of B. burgdorferi were cultured in BSK II media from which they were removed by low speed centrifugation. The sedimented borrelia were carefully resuspended in stabilizing buffer so as to preserve their features for scanning and negative staining. Alternatively, others were prepared for conventional thin sectioning and for cryotomy using modified procedures. For thin sectioning, the fixative described by Ito, et al.

Sign in / Sign up

Export Citation Format

Share Document