Two new mononuclear complexes, namely [Co(L)_2](1) and [Mn(L)_2](2)(HL = N-(3-methylsalicylidene)tryptamine), have been synthesized by the reactions of the liga
The biodiesel prepared from Xanthoceras Sorbiflia Bunge Oil catalyzed by Ce doped nano PO4^3-/ZrO2 was investigated. A maximum biodiesel yield of 91.83% was ach
国际互联网在以惊人的速度发展,展示自身优点的同时,也不断暴露出弱点。在这个网络触角无所不至的时代,如果我们稍稍脱离,把目光投注到它的用户——那些数以千万计的飞蛾扑火
Two new pleuromutilin derivatives, 14-O-[(4-amino-6-methoxyl-pyrimidine-2-yl)-thioacetyl] mutilin(4) and 14-O-[4-amino-1-methyl-6-oxo-1,6-dihydropyrimidin-2-yl)
今天,IT产品的技术、成本、品质的差异已经越来越小,为了能在激烈的市场竞争中立足,面对竞争压力,厂商已经把提供更好的服务作为参与竞争的手段之一,IT服务业甚至成为新的经
The title compound 1 was prepared from 1-bromonaphthalene and cyclobutanone in 11 steps, and its structure was determined by single-crystal X-ray diffraction fo
最近网络股在美国纳斯达克(Nasdaq)频频大幅重挫,但在此之前,不论在美国或是日本的股市,都接连上演网络股飙涨的戏,2000年3月在纳斯达克股市,思科(Cisco)股价的总市值达到579