As it is known to all,lift sub is a short drill string component that is tem-porarily connected to the top of a tool ass......

Based on the symmetric re-entrant honeycomb(S-RH)structure with negative Poisson’s ratios,a novel asymmetric and rotata......

Typically,liquid pump and liquids mixer are two separate devices.The invention of piezoelectric pump makes it possible t......

Typically,liquid pump and liquids mixer are two separate devices.The invention of piezoelectric pump makes it possible t......

以轮式移动机器人为研究目标,以适应越野路面及爬坡、翻身等特殊功能需要。给出了可翻转轮式移动机器人的系统构成与设计,重点对爬......

螺旋式可旋转接地线的应用是电力工程开展的关键性环节之一。开展螺旋式可旋转接地线应用的全面研究,实现科学的应用方式,与螺旋式......

将星球探测车抗倾翻失效的方法总结为3类:改进移动系统结构方式、主动复位方式和被动适应地形方式。在分析各种解决方法存在问题的......

典型地，液体泵和液体混合器是二台分开的设备。压电的泵的发明使集成二台设备可能。Hower，存在因为，压电的混合泵更大需要在房间外面......

The interference reduction capability of cell sectoring and power control algorithms have been considered separately as ......

The following article has been retracted due to the investigation of complaints received against it. Title: A New Method......