未来太空学者大会(Future Space Scholars Meet,简称FSSM)是由美国航天基金会、英国国家空间学院、中国航天基金会、青少年国际竞赛与交流中心联合主办,联合国附属空间科技教育亚太区域中心、一带一路航天创新联盟、中国科技网指导的面向全球青少年的...
This deliverable presents the results of the first application of the bioeconomic farm model FSSIM for a set of farm types representing the arable farming systems in two Test Case regions of the SEAMLESS-IP project: Midi-Pyrenees (France) and Sikasso (Mali). This application is performed throug...
PURPOSE: To provide a digital audio signal processing unit by which deterioration in audio quality due to an error added on a transmission line is surely prevented. ;CONSTITUTION: A difference comparator signal (k) from an absolute value comparator 7 is set only when an absolute valve of a di...
广角是进口的贵重药材.在药材市场上有人用牛角冒充广角.致使一些人上当受骗,造成经济上的损失.同时,也耽误了患者治病.现将二者区别作一简述.广角为犀科动物黑犀Rhin-oceros bicornis L.及白犀Rhinoceros simus Burohell的角,产于非洲.广角角形较长而大,可达60厘米.自底部向上渐细中部较圆,尖端弯细而略扁.上部灰...