A reaction of benzylic alcohols with alkenes has been developed in the presence of bis(trifluoromethane)sulfonimide for ......

p-Quinols are ubiquitous structural motifs of various natural products and pharmaceutical compounds,and versatile buildi......

Methanesulfonic acid(MSA) was successfully immobilized in silica, leading to a novel and environmentally friendly solid ......

An efficient,convenient and environmentally benign procedure for the synthesis of novel 3-oxo-3Hbenzo[a]pyrano[2.3-c]phe......

Hexamethylenediamine(HMDA) is an important reagent for the synthesis of Nylon-6,6, and it is usually produced by the hyd......

The paper presents a simplified numerical model of evaporation processes inside vertical tubes.In this model only the te......

No annoying drills.Stop the crane. Take a bus instead of driving your carunless you are taking a student to the national......

CNPC’s drilling fluids sector, being one of the important components of the company’s engineering service business, ha......

Chinese SMEs should prepare for an even bumpier ride ahead In 2012, Chinese enterprises will be confronted with unpreced......

The most common question my students ask is“Howcan I improve my oral English?”My answer is alwaysthe same: practice. T......

At the invitation of BresciaProvince in Italy and theChamber of Commerce of Brescia,a 30 - member Chinese Folk ArtTroup......

Aworkshop with three consecutive sessions,two hours each,was thoughtfully designed by Stephen Smuin,Christopher Fiorenti......

Mr. Tozzoli, a three-time nominee for the Nobel Peace Prize for his work in promoting world peace through international ......

Cationic ring opening polymerization of octamethylcyclotetrasiloxane(D4)initiated by acid treated bentonite was investig......

Polylactic acid is a biodegradable plasticproduced through a two-step process withrenewable substances such as corn sta......

The efficient,green,facile,mild and straightforward conversion procedure for the oxidation of cyclic ketones to lactones......

As China’s economy has evolved into the so-called new normal stage,the Communist Party of China Central Committee and t......

On March 22， a donation ceremony of the Japanese porcelain artwork the “Blue Planet of Human Life”was held in the Peace......

Cheng Youshu was born in 1924. She worked for newspapers between 1946 and 1952. In 1953 she was transferred to the Mini......

Streaming video is becoming increasingly popular among Internet multimedia applications. A robust coding scheme for DCT-......

Han Suyin is a famous Chinese British woman writer well known to the Chinese people. On August 29, 2008, the government ......

Organic food is becoming safer, more nutritious and more environmentally friendly, said Xiao Xingji, State Environmental......

Zhou Jianhua is quite a celebrity in Huayuan County,Hunan Province.That fame comes mainly from his photography,a path he......

请下载后查看，本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view......

以氯乙酰氯和氯丁酰氯为亲电试剂,通过Friedel-Crafts酰基化反应,在聚砜（PSF）主链引入了含氯的且碳原子数目不同的（分别为2和4）柔性侧......

针对加筋土挡土墙工程中确定筋带摩阻力试验方法与影响因素，对筋带在不同拉拔加荷方式和不同密度填料中的摩阻力进行试验。试验结果......

德里达的政治哲学思想是德里达解构思想的的一个越来越重要的关键线索和组成部分.德里达的政治哲学具有鲜明的解构性色彩,它包括对......

Heteroatom-directed aromatic lithiation reactions usedfor the regiospecific synthesis of o-isopropyl substituted phenoli......

研究了硫酸盐、碳酸盐和硝酸盐与氯盐复合侵蚀下硅酸盐水泥固化氯离子性能,采用水溶法测定了水泥净浆中自由氯离子含量并计算得出......

采用溶胶凝胶法合成了一系列有序性好且酸性较强的介孔硅铝酸盐材料。利用X射线粉末衍射（XRDl、透射电镜（TEMl、27Al核磁共振（27NMR）、......

短文改错题型主要检测同学们发现、判断和纠正文章中错误的能力，从而考查同学们在语篇中综合运用英语知识的准确性，是集多项语法规则......

卡夫卡的"毁稿遗嘱"及其围绕它所展开的"诉讼"似乎给人一种错觉:作为一个视文学为自己生命形式的作家,他一点都不关心甚至不求自己......

【正】书面表达旨在测试考生英语书面表达能力,以及用学过的英语知识和掌握的技能进行思想交流的能力。从历年高考试卷来看,书面表......

【正】On the morning of April 2,2014,CAFIU held the 11th Executive Council Meeting in Beijing.Present at the Meeting we......

This paper presents an image processing design flow for virtual fitting room (VFR) applications, targeting both personal......