Surface microtexturing has been widely used due to its good hydrophobic or drag reduction characteristics, and become an effective method improve product performance reduce energy consumption. This paper mainly discusses the improvement of microtextures on dynamic pressure characteristics hydrostatic bearings, explores effects texture parameters carrying capacity, macroscopic wall two-plane she...

A machine-vision method applicable to precision farming for environmental friendly agriculture is proposed which distinguish which of clover and gramineous weeds is dominant, within a section of 30cm square. Pictures of vegetated ground are treated as random textures and micro-shape based feature extraction method is applied. As many as 98are correctly classified.

Abstract There are various potential applications of biomimetic adhesive solutions including climbing robotic systems, mobile sensor platforms, and biomedical such as patches for external use. Achieving resistance to both normal tangential loads, however, is a critical issue that still needs be addressed. Some animals have developed exceptional attachment mechanisms based on combined fibrillar ...

Nowadays the surface texturing has been widely recognized as a usable capability to improve the tribological systems. In this paper, ultrasonic assisted turning (UAT) isperformed to create the micro textures on the flat faces. Micro surface texturing ismade on the Al7075-T6 by the UAT in the face turning process. Then, the influences of cutting speed feed, vibration direction and vibration ampl...

In this work, a micro-texture through laser ablation pre-treatment on aluminum alloy surface was designed, which successfully induced high bonding strength of alloy-polymer friction stir welding joints. The mechanism attributed to the large mechanical interlocking from geometric grooves in micro-textures and formation C–O–Al bond at interfaces. This study provides new insight metal polymer cont...

Micro- and nanoscale surface textures, when optimally designed, present a unique approach to improve surface functionalities. Coupling surface texture with shape memory polymers may generate reversibly tuneable surface properties. A shape memory polyetherurethane is used to prepare various surface textures including 2 μm- and 200 nm-gratings, 250 nm-pillars and 200 nm-holes. The mechanical defo...