A machine learning-based optimization strategy was used to find optimal designs for adhesive composite pillars with either high adhesion strength or tunability. Neural networks were trained data generated by finite element analysis predict the of different designs; an average prediction error less than 1% achieved. Through a sensitivity study neural networks, it is found that geometry stiff cor...

Please cite this article in press as: Jang, D., et Int. J. Plasticity (2010), doi:10.1016/j.ijplas.20 We report results of uniaxial compression tests on Zr35Ti30Co6Be29 metallic glass nanopillars with diameters ranging from 1.6 lm to 100 nm. The tested pillars have nearly vertical sidewalls, with the tapering angle lower than 1 (diameter >200 nm) or 2 (diameter 100 nm), and with a flat pillar t...

In this paper, the effects of horizontal stress and dimensions of barrier pillars on the stability of drifts hr been investigated. An elastoplastic hybrid finite/boundary element program has been used. A plastic analysis of stresses in barrier pillars above the drifts in one of the underground coal mines with inclined seams is examined. Computed stresses and safety factor controur lines around ...

A long time lag is the main characteristic of gypsum mined gob collapse disasters. With coring a rock specimen from supporting pillars in gob, which formed over several years, strength weakening effect with long-term overlying strata pressure revealed by experimentation. The results show that: uniaxial compression stress–strain curves represent major differences different lateral depths same pi...

Listed companies are the pillar strength of China’s economy, whose CSR performance is great significance. From perspective sustainable development enterprises, this paper finds that managerial myopia will inhibit enterprises from fulfilling their social responsibilities. Using employment opportunity indicator as an instrumental variable, result 2SLS regression remains significantly negative. In...

The mechanical properties of a cell's environment can alter behavior such as migration and spreading, and control the differentiation path of stem cells. Here we describe a technique for fabricating substrates whose rigidity can be controlled locally without altering the contact area for cell spreading. The substrates consist of elastomeric pillar arrays in which the top surface is uniform but ...

Pillar[5]arenes, as a new intriguing class of calixarene analogues, were functionalized with ten diglycolamide (DGA) arms on both sides (rims) of the pillar framework and evaluated for their extraction behaviour towards Am(III) and Eu(III). These novel extractants exhibit excellent separation and extraction efficiency, suggesting its significant potential for nuclear waste remediation. Laser in...

In underground mining, the design of rock pillars is crucial importance as these are structures that allow safe mining by maintaining stability surrounding excavations. Pillar often a complex task, it involves estimating loads at depths and strength mass fabric, which depend on intact shape pillar in terms aspect ratio (width/height). The also depends number, persistence, orientation, discontin...

BACKGROUND Accurate and reliable radiographic classifications of the relative severity and outcome of Legg-Calve-Perthes disease are essential in the study of that disease. As part of a prospective multicenter study, we sought to define more clearly the lateral pillar classification of severity and the Stulberg classification of outcome; we sought especially to define the borderlines between cl...