FT-IR和HPLC对不同产地大黄药材的鉴别分析

目的 采用傅里叶变换红外光谱(FT-IR)和高效液相色谱(HPLC)方法对37批不同品种和产地的大黄药材进行分析.方法 分别采用FT-IR和HPLC测量37批大黄药材的红外光谱和液相指纹图谱,并对结果进行聚类分析.从每一产地中选择一批药材,分析红外原始光谱,并对原始光谱进行二阶导数处理,根据所得二阶导数光谱对各产地大黄...     

最小相位传递函数的幅相频率特性曲线的简便绘制

在研究最小相应传递函数的频率特性基础上，总结出一种绘制幅相频率特性曲线大致形状的简便方法，并给出了应用实例。     

系统功能语法视野下英汉请柬的语篇差异及互译——兼论中西文化的相互转换

从人际意义资源、概念意义表征、及物性结构、主位结构与衔接手段分析了英汉请柬的语篇差异,从语言、思维、文化(心理)方面究了其原因,发现二者不应简单地字对字、句对句互译,而应在功能对等的前提下归化,即用译语读者习惯的方式传达邀约。     

杂文与时评的文体辨析

杂文与时评分属文学范畴和新闻体裁,由于二者均以评说世象、议事论理为主,因而在反应敏锐、针对性强、篇幅简短等方面有共同之处。但把握二者的文体区别,对于两种文体的繁荣,更具有重要意义。本文从"杂谈"与"事评"、"思想"与"判断"、"曲笔"与"直言"、"批评性"与"建设性"、"形象论理"与"逻辑推论"5个方面对两种文体进行了辨析。     

回转体零件的特征识别研究

阐述了用C语言及数据库编程技术从二维AutoCAD输出文件——DXF中性文件中自动提取识别特征的方法，为CAD／CAM的集成提供必要的零件特征信息。     

A case of biodiversity overestimation in the Balkan Belgrandiella A. J. Wagner, 1927 (Caenogastropoda: Hydrobiidae): molecular divergence not paralleled by high morphological variation

Belgrandiella A. J. Wagner, 1927 is a genus comprising minute snails with conic or turriform shells that are facultative stygobionts, inhabiting subterranean waters and springs. Few specimens or even empty shells of this taxon can be found, so the taxonomy is based mostly on the shell morphology and geographic distribution. Anatomy is known for a few taxa, and its usefulness is restricted. This, coupled with a popular idea that isolation is the first factor shaping divergence and speciation of the spring/cave fauna, resulted in dozens of nominal species of Belgrandiella, known from shells at a given locality. Herein we present shells, anatomy and four molecular markers (nuclear H3, 18S and 28S and mitochondrial cytochrome oxidase subunit I) in Belgrandiella from 16 localities in Slovenia, northern Croatia, and Bosnia and Herzegovina. Five sites are type localities of Boleana umbilicata, Belgrandiella kusceri, Belgrandiella krupensis, Belgrandiella zermanica and Belgrandiella robusta, respectively. Considering the shell and geographic distribution, we have determined B. cf. robusta Belgrandiella cf. croatica, Belgrandiella cf. fontinalis, Belgrandiella cf. kuesteri, Belgrandiella cf. pageti and Belgrandiella cf. koprivnensis The shells of all, as well as penes and female reproductive organs of two putative, species have been illustrated. Molecular analysis indicates four distinct clades, most probably of species rank for B. kusceri, B. cf. kuesteri, B. cf. fontinalis and B. cf. koprivnensis. Four nominal species (B. krupensis, B. robusta, B. umbilicata and B. zermanica) and one genus (Boleana) must be synonymised with Belgrandiella kusceri, and there are no more than four valid, biological species in the studied Belgrandiella. The molecular divergence is completely unmirrored by high morphological variability. Hence the level of endemism is markedly overestimated in these snails.     

《水浒传》中重叠式副词的类型及语法功能

根据基式词性的不同，《水浒传》中的副词重叠式有两类即基式A为单音节副词和基式A为非副词。就语法功能而言，基式A与重叠式从最主要的不同在于重叠式从与谓词的搭配上获得了更大的自由度。     

新时期女性文学性别意识探微——李宇春走红现象的反思

面对强大的男权社会的对垒。女性性别意识在历史和残酷现实竞争中不经意蜕变雄化，性别迷失。文学是人学，在新时期女性文学的影象中，女性文学在女性主义高涨的浪潮里，同样返照着女性自救征途上无法避免的男性化倾向。其现状源于沉重的“第二性”历史和四面楚歌的残酷现实，而女性文学真正意义上的解放必然是摆脱男权意识和男性性别参照，认识自我，认识人类已有的文明和秩序，寻求与外部世界抗争和合作的勇气，寻找女性真正意义上的生命本体回归。     

图像测量技术中一种调焦的判别方法

提出一种基于牛顿光学成像公式的图像测量技术中调焦的判别方法,给出了调焦判据。用这种判据调焦可以获得清晰的图像,使尺寸测量更精确,若配以自动调焦系统使摄像头跟踪被测表面,可实现表面形状的非接触测量。实验结果表明,该方法可较快实现调焦,调焦重复性的标准误差约6．5m。     

缩小区域收入差距的重心是扶贫而不是抑富

区域统筹是科学发展观的重要内容和落实措施。区域统筹是在区域之间发展差距扩大、社会贫富差距拉大的背景下提出来的,实质是要实现各个区域共同发展、协调发展;其基本目标,是通过区域统筹,达到协调发展、缩小差距的目的。当前缩小差距的重心是扶贫而不是抑富,要正确处理市场和政府的关系,既要发挥市场在资源配置中的基础性作用,保护效率,又要发挥政府在扶贫开发中的主导作用,实现公平,实现社会经济的协调发展,体现以人为本的科学发展观。