A review is presentedof the mechanics of microscale adhesion in microelectromechanical systems (MEMS). Some governingdimensionlessnumbers such as Tabor number, adhesionparameter and peel number for microscale elastic adhesion contact are discussed in detail. The peel number is modiŽ ed for the elastic contact between a rough surface in contact with a smooth plane. Roughness ratio is introduced ...

When a photon flux is incident upon a rough interface that separates media with different refractive indices, the interface roughness influences the angular distribution of the transmitted flux. For the case of very rough surfaces with slopes of the order of unity, we find that a simple facet model is sufficient to describe the main features of the f lux-transmission behavior. We demonstrate th...

Aiming at the problem of tourism scenic route planning, this paper studies and analyzes the combined influence of terrain slope and surface properties on vehicle route planning. The “window moving method” is introduced to carry out early slope calculation and traffic ability analysis for the terrain, roughness evaluation index is established respectively for wheeled and tracked vehicles and the...

High-speed navigation of autonomous Unmanned Ground Vehicles (UGVs) in rough unknown terrains requires the detection and identification of the terrain in order to make effective navigation decisions. This paper investigates a geometrical approach to identifying terrain based on its roughness using the terrain elevations from a point cloud generated using a 3D camera. This roughness, called the ...