– We study the probability, PS(t), of a cluster to remain intact in one-dimensional cluster-cluster aggregation when the cluster diffusion coefficient scales with size as D(s) ∼ s . PS(t) exhibits a stretched exponential decay for γ < 0 and the power-laws t −3/2 for γ = 0, and t for 0 < γ < 2. A random walk picture explains the discontinuous and non-monotonic behavior of the exponent. The decay...

The influence of polymolecularity on molecular weight determinations is reviewed. Several molecular weight methods give so-called mixed averages, i.e. averages which are based on more than one moment of the molecular weight distribution or on powers of the moment. Molecular weight averages can be subdivided into simple, exponential resolved, order resolved and power resolved averages. Mixed ave...

We conduct molecular dynamics simulations of a bidisperse Kob-Andersen (KA) glass former, modified to add in additional polydispersity. The original KA system is known exhibit dynamical heterogeneity. Prior work defined propensity, the mean motion particle averaged over reconstructing initial positions all particles but with randomized velocities. existence propensity shows that structure and a...

Macroscopic properties of electrorheological (ER) fluids are often determined by the spatial arrangement of the suspended particles. We investigate the microstructure of polydisperse ER fluids at low concentrations in a DC electric field. Optical microscopy reveals that the particles with polydispersity in size or in both size and dielectric property are mixed in stable single particle width ch...

2014 A « critical » degree of polydispersity is postulated beyond which liquid and crystalline states merge. For a system with a triangular particle-size distribution, the disappearance of the melting transition is estimated to occur at levels of just less than 30 % polydispersity. J. Physique Lett. 46 (1985) L-229 L-232 ~ 15 MARS 1985, : -1 Classification Physics Abstracts 64. 70D 82.70 Freezi...

Geophysical mass flows involve particles of different sizes, a property termed polydispersity. The granular column collapse is simplified experiment for studying transitional flows. Our research focuses on the role that polydispersity has velocity and runout distance dry immersed columns, undergoing numerical experimental study. results highlight does not have strong effect columns. On contrary...