A novel switchable adhesive, inspired by the gecko's fibrillar dry attachment system, is introduced. It consists of a patterned surface with an array of mushroom-shaped pillars having two distinct heights. The different pillar heights allow control of the pull-off force in two steps by application of a low and a high preload. For low preload, only the long pillars form contact, resulting in a l...

To characterize the effect of shearing on function of fibrillar adhesive microstructure, friction and shear-related changes in pull-off force of a biomimetic polyvinylsiloxane mushroom-shaped fibrillar adhesive microstructure were studied. In contrast to a control flat surface, which exhibited pronounced stick-slip motion accompanied with high friction, the fibrillar microstructure demonstrated...

With the development of e-commerce and improvement logistics requirements, more ‘parts-to-picker’ picking systems begin to replace inefficient ‘picker-to-parts’ in various scenarios. As mainstream system, robotic mobile fulfillment system has been attracting much attention recent years. In addition customer's changing rapid response order is particularly important. above context, seek a breakth...

Aim of study: To develop a whole row automatic pick-up device using air force to blow out plug seedlings, avoid the damage seedlings that current way seedling picking by needle insertion induces.Area Jiangsu Province, China.Material and methods: We designed which mainly consists transporting device, loosening clamping an control system. The rate was significantly reduced success increased new m...

This study analyzes impacts by batch picking on picker blocking in narrow-aisle order picking, and determines appropriate batch formations for a better order picking throughput. We present multiple-pick analytical models to offer insights about picker blocking in batch picking. Several simulation studies over a variety of batching situations scrutinize order batching situations which give throu...

Particle picking is a crucial first step in the computational pipeline of single-particle cryo-electron microscopy (cryo-EM). Selecting particles from the micrographs is difficult especially for small particles with low contrast. As high-resolution reconstruction typically requires hundreds of thousands of particles, manually picking that many particles is often too time-consuming. While semi-a...

Obstetric medicine is the care of women with medical problems in pregnancy. Medical problems may predate or arise de novo in pregnancy. Some are common and some are dangerous. Both obstetricians and physicians recognise the need for greater numbers of appropriately trained clinicians to care for such women. There is a demand for such training, particularly from trainee obstetricians. The Royal ...

Here we are making some predictions based on three methods: a straightforward extrapolations of the existing trends; a self-fulfilling prophecy; and picking some current grievances and predicting that they will be addressed or solved. We predict the growth of multicore computing and dramatic growth of data, as well as the improvements in force fields and sampling methods. We also predict that e...

To implement an automatic picking system (APS) in distribution center with high precision and high dynamics, this paper presents a design of a linear induction motor (LIM) drive and robust position controller based on an integral sliding mode control (SMC) scheme. The force disturbance as well as the mechanical parameter variation such as the mass and friction coefficient influences directly on...