The goal of this study is to describe a methodology for the analysis of D-sorbitol using benzyl alcohol as derivatizing agent and liquid chromatography equipped
【导读】文章视角独特,立意耐人寻思。城乡差别,不仅仅表现在物质生活的繁华程度不同,也表现在对自然的亲近、认识程度上。对于生活在城市而对“乡村生活感到陌生”的作者,他
单调、乏味的冬天还在大地上犹疑徘徊时,春天已经悄悄地降临……春来了,我们像是从笼中逃脱的小鸟,奔跑在草地上,河堤上……放眼望去,春天像是一个神奇的画家,用浓墨重彩的画
Initial sugarcane production in South Africa relied on imported varieties. When imported varieties succumbed to diseases, the industry established the South Afr
The present study deals with comprehensive list of Invasive alien plants of Indian Himalayan Region with background information on family, habit and nativity. A
2003年,出入上海的地面道口安装了"车牌识别系统".值勤民警发现可疑车辆,手工输入车牌号码到车辆"黑名单"数据库进行查询.2004年4月,在"车牌识别系统"基础上建设了"道口车牌
The 26 taxa of genus Spiraea (Rosaceae) in 14 Korean taxa and four taxa of them doubled in the world itself were collected and investigated phylogenetic relatio
A field study was conducted at the Agricultural Research Farm of Razi University, Kermanshah, Iran to investigate the effects of phosphate biofertilizer, row sp
This work is comprised of anatomical study of fossil wood collected from Chnji formation (72°22'E, 32°41'N) of Miocene age exposed at Chinji N
一、2010上海世博会客流总数的预测分析根据往届世博会客流的统计数据,以1970年日本大阪世博会客流数据为主要参照指标,绘制2010年上海世博会客流的大致分布曲线--日均客流在