Based on an analysis of the fractal structures and mass transport mechanism of typical shear-fluid-ore formation system, the fractal dispersion theory of the fl
The Ordovician conodont faunal provinces were previously divided into the Midcontinent and Atlantic Faunal Regions situated respectively in low and high latitud
医院感染(nosocomial infections)是影响住院病人的致病性和致死性的一个重要因素,它不仅加重了病人的经济负担,而且促使一些细菌产生了耐药性,其重要性已被越来越多的医务人
An oil flow obtained from the Middle Ordovician Fengfeng Formation carbonate reservoir in the well KG-3, Kongxi burial-hill zone in 1993 marked a breakthrough i
对于手机、数码相机(Digital Still Camera,DSC)、音乐播放器等便携设备中常见的单节锂离子电池等而言,充电一直是一个颇有挑战性的问题,因为既要满足特定应用要求,又要确保安