Slippery surfaces introduce various difficulties in motion planning and control. This paper presents a novel design and a motion planner for a mobile robot operating on slippery surfaces. The robot consists of an upper circular body and three identical semi-passive driving mechanisms. Each mechanism consists of a passive wheel that can roll, a rotation actuator along the normal axes and a linea...

Clinically significant laxity occurs in 10%-30% of knees after anterior cruciate ligament reconstruction. Graft slippage and tension loss at the hamstring graft tibial fixation site during and after reconstruction surgery contribute to postoperative joint laxity and are detrimental to long-term knee stability and graft properties. Limiting graft slippage will reduce associated complications. We...

Ice accretion remains a costly, hazardous concern worldwide. Icephobic coatings reduce the adhesion between ice and a surface. However, only a handful of the icephobic systems reported to date reduce the ice adhesion sufficiently for the facile and passive removal of ice, such as under its own weight or by mild winds. Most of these icephobic surfaces have relied on sacrificial lubricants, which...

This paper presents the application of Parallel Genetic Algorithm (PGA)-based Takagi Sugeno Kang (TSK)-Fuzzy approach for dynamic car-following modeling in the traffic simulation software. It differs from the usual car-following model significantly as the proposed model provides a more dynamic car movement and realistic headway by considering the driver progressive level factor. These two advan...

In this work, we incorporated the effects of slippage and adsorption into transient productivity index to determine pressure in horizontal wells simulation natural gas reservoirs. We modeled by introducing an apparent permeability, a function Knudsen number, while is using Langmuir isotherm. As for index, included one classic Peaceman reservoir-coupling models, which integral exponential polyno...