人们常说,光阴荏苒,岁月如梭,往事如烟飘散.然而,当我们建立记忆的原点,定位往事的坐标,却发现往事并不如烟.……
Quality of service (QoS) multicast routing has continued to be a very important research topic in the Internet.A method of multicast routing is proposed to simu
Since grey system theory was established by prof. Deng, GM models and their improvements have all taken the first vector of the original sequence as the initial
目的:分析β受体阻滞剂、ACEI及地高辛联合治疗对扩心病心力衰竭患者运动耐量的影响。方法:选取我院2012年4月至2014年4月收治的24例扩心病心力衰竭患者为研究对象,随机将其
With its wide use in different fields, the problem of the convergence of simple genetic algorithms (GAs) has been concerned. In the past, the research on the co
<正>山东考生中华民族,泱泱大国,华夏历史,浩浩汤汤。历史的潮水打不退时代的光芒,那一个个为中华民族的兴衰存亡而奔走疾呼的英雄,书写着中华民族的历史,涤荡着人们的灵魂。
In distributed multisensor data fusion systems, there are two types of track fusion approaches. One is sensor track fusion with feedback information, the other
红曲色素是由红曲霉发酵生产的天然食用色素,其作为添加剂在食品特别是肉品工业中有很好的应用前景。文章较全面地介绍了红曲色素的组成、提取及分离纯化技术,并对红曲色素的
药物共晶是药物活性成分和共晶形成物以氢键或其他非共价键结合形成的晶体,近年来有关药物共晶的研究已成为药物研发的新热点。本文从专利申请状况、专利申请人、专利申请的
以水培法莴苣幼苗为供试材料 ,研究了不同氮素形态对营养液的 p H及磷、锌、铁之间的相互作用机理。结果表明 :氮素形态可以改变营养液的 p H,在以 NO-3 - N为氮源时 ,营养液