We study a model of rolling particles subject to stochastic fluctuations, which may be relevant in systems of nano- or microscale particles where rolling is an approximation for strong static friction. We consider the simplest possible nontrivial system: a linear polymer of three disks constrained to remain in contact and immersed in an equilibrium heat bath so the internal angle of the polymer...

1-Subg Mapping Cell Surface Adhesion by Rotation Tracking and Adhesion Footprinting Isaac T.S. Li1, Yann R. Chemla2, Taekjip Ha3,4. Chemistry, University of British Columbia, Kelowna, BC, Canada, Department of Physics and Centre for Physics of Living Cells, University of Illinois Urbana-Champaign, Urbana, IL, USA, Department of Biophysics and Department of Biomedical Engineering, Johns Hopkins ...

The processing quality of steel bar thread has a large influence on its performance. Using the traditional technology, it is difficult to meet requirements with diameter and high strength. A technical process for HRB500 high-strength processing, including face milling, rib stripping, chamfering, necking formation, rolling, was proposed. influences cutting parameters force surface in milling wer...

in this study, the effect of cold rolling process on the microstructure and texture evolution in 1wt. % si non-orientedelectrical steel was investigated. for this purpose, all samples were processed through single-stage hot rolling at1100 ° c and two-stage cold rolling (cross rolling and unidirectional rolling) with intermediate annealing at 650 °cfor 35 seconds. finally, all of them were fully...

We consider a vesicle bilayer loaded with molecules that can bind (upon contact) with a solid surface, following the classical model of Bell, Dembo, and Bongrand. We are interested in situations where the contact area varies with time: we assume that binders can then migrate via diffusion. The resulting dissipation and lag create a retarded force on the contact line, which could be significant ...

The usefulness of forward dynamic simulations to studies of human motion is well known. Although the musculoskeletal models used in these studies are generic, the modeling of specific components, such as the knee joint, may vary. Our two objectives were (1) to investigate the effects of three commonly used knee models on forward dynamic simulation results, and (2) to study the sensitivity of si...

Stability against capsizing is one of the most fundamental requirements to design a ship. In this research, for the first time, CFD is performed to predict main modes of capsizing. CFD first is conducted to predict parametric rolling for a naval ship. Then CFD study of parametric rolling is extended for prediction of broaching both by using CFD as input to NDA model of broaching in replacement ...

A 2-axis force/torque sensor has been designed for contact sensing and the localization of 2-D curved shapes. The sensor is an aluminum piece attached with two “chip sensors”, each a half-bridge circuit consisting of two strain gauges. It functions like a “wrist” which uses the two chip sensors to detect bending and twisting moments, respectively. When an external force is exerted on a jaw moun...