西洋参半机械化种植技术初探

西洋参是一种市场前景广阔的保健产品，成功引种到山西省娄烦县，为贫困山区脱贫致富开发了一项新型种植业。简要介绍了西洋参的特性，阐述了西洋参半机械化种植技术及其经济效益与推广前景。     

软件安装描述语言SIDL及安装软件SETUP

从软件安装的工作原理出发，为说明安装信息，定义了安装描述语言ＳＩＤＬ，并描述了通用安装软件ＳＥＴＵＰ在ＭＳ－Ｗｉｎｄｏｗｓ环境下的实现．基于ＳＩＤＬ描述的软件的安装文本，ＳＥＴＵＰ能自动完成相应软件的安装     

灭蚊灯及其高压供电

灭蚊灯主要由引诱灯、高压栅、绝缘保护栅组成。引诱灯的作用是把蚊虫引向灭蚊灯。试验证明，３６０ｎｍ波段效果最好。高压栅将蚊虫击毙，通过五倍压整流电路产生的１０００Ｖ以上高压来实现。绝缘栅保护人身安全，免遭电击。     

试论萧统遗迹及其对历史文化名城的影响

大江南北分布着多处梁昭明太子读书台和选楼遗址,它们是各地历史化名城的重要组成部分。《选》作为我国民族化精华之一,在丰富各地历史化名城内涵方面起了积极作用。     

Spectroscopic study on the photophysical properties of chlorine substituted tetraphenylporphyrin-histidine and its zinc(Ⅱ)complexes

The photophysical properties of ortho-CI,meta-CI and para-CI substituted tetraphenylporphy-rin-histidine and their zinc (II) complexes have been studied by means of steady-state absorption and fluo-rescence spectroscopies, as well as time-resolved fluo-rescence spectroscopy. For the cases of both free-base and zinc complexes, it was found that the ortho-chlorine substitution onto the phenyl rings significantly altered the fluorescence quantum yield, thefluorescence lifetime and the ratio between radiative and nonradiative deactivation rates of the porphyrin chromophore, i.e. the photophysical parameters were quite different from those of meta- and para-substituted compounds. On the other hand, however, the introduction of covalently-linked histidine did not exert much effects on the photophysical behavior of the porphyrin chromophore. The results are interpreted interms of the steric effect and the heavy-atom effect from the chlorine atoms substituted onto the phenyl rings.     

元初刘因"和陶诗"的内蕴

元代初期,文人思想动荡,处境尴尬.作为元初北方文人的典型代表,刘因76首"和陶诗",以其丰富的含蕴,揭示了诗人在那个特殊时期内心的矛盾、无奈的选择,及其对待人生的态度.本文拟从诗人的济世之志、退隐之因、山居之乐等方面对此进行分析.     

微量元素铬、锌与糖尿病的关系

微量元素铬，锌与糖尿病有密切的关系。缺铬影响人体糖耐量和胰岛素的活性。缺锌使胰岛素稳定性降低，合成及分泌减少，影响葡萄糖的氧化功能。缺铬和缺锌均可能导致糖尿病。     

提高课堂教学效果之思考

课堂教学是一项综合性的工作，影响教学质量的因素有许多，作在多年的教学实践中不断总结、研究、实践、提高，取得了一定的效果，本试从教师本身素质、备课、讲授技巧、师生沟通、学风建设等方面探讨了如何提高课堂教学效果的措施。