Dynamic disasters seriously threaten the safety and effectiveness in deep mining.The mechanism of stick-slip instability occurrence on the deep coal-rock structure was studied in this paper through analyzing the occurrence condition of stick-slip in the weak surface and discussing the friction constitutive of the coal-rock structure.The result indi
Abstract Efficient and safe cell engineering by transfection of nucleic acids u11-200ps remains one of the long-standing hurdles for fundamental biomedical research and many new therapeutic applications, such as CAR T cell-based therapies.mRNA has recently gained increasing attention as a more safe and versatile alternative tool over viral- or DNA
Peeling is a physical mechanics involved in the detachment of many natural and virginia mill works tobacco road acacia industrial applications.In this paper, we investigate the double peeling of an endless elastic pre-stressed tape adhering to a flat smooth rigid substrate.Solutions are given in read more closed form and their stability is discusse
The purpose of the article is presenting the application of the roller compacted concrete (RCC) as alternative solution to asphalt parking places and roads, showing the advantages and korpskaft further possibilities for development of RCC in wide range of projects.RCC is produced similar to conventional concrete.However, RCC is zero slump concrete