ISIS/Draw2.2使用技巧探讨

主要讲述了化学专业软件ISIS／Draw2．2中的工具使用、环境设置、编辑档及如何修改分子结构式、如何利用现有的模板快速地建立方程式，使化学档快速又美观地打印出来。     

高维幻体的存在性

所谓高维幻体是一个元由从1到n~D的n~D个连续自然数所组成的n阶D维方阵,其任一组位于同一行列或D维对角线上的n个元之和均等于幻和:1/2n(1+n~D)。本文给出了三种n阶D维幻体的构造方法,证明了n阶D维幻体是存在的,从而完全解决了高维幻体的存在性问题。这里n≥3,D>2。     

论高校图书馆与信息素养教育

分析了信息素养的内涵，阐述了高校图书馆在信息素养教育方面所特有的优势和开展信息素养教育应采取的有效方法。     

受控与涉及旁径的n维单形不等式

应用受控理论与方法研究单形, 给出了n维单形中旁切超球半径, 内切超球半径及高线长之间的若干受控关系, 简捷地建立了n维单形中涉及旁切超球半径的一系列新的几何不等式.所得旁切超球半径与内切超球半径的幂和系列不等式等是以往某些结果的推广与补充.     

广义带的广义簇

引进了广义带的概念，研究了广义带的广义簇的若干性质．     

双路信号电源监测及故障记录装置研究

介绍了双路信号电源监测装置的工作原理、实现方法、主要功能与抗干扰措施。     

崩落采矿法放矿的离散元仿真

简述了离散元法的基本原理,并用其对崩落采矿法多漏孔放矿过程进行了仿真。结果表明离散元法对于解决放矿问题是可行的和较为全面的,它不仅能从运动方面研究崩落矿岩的移动形态,而且还能从动力学方面分析矿岩块之间的力学关系。后者是离散元法所特有的功能。     

Kirkman“女学生问题”──安排七周活动的另一种手工解法

Ｋｉｒｋｍａｎ“女学生问题”是一个著名的世界难题。它的局部解是由Ｋｉｒｋｍａｎ本人解决的。它的完整解的存在性只是近年来才被数学家陆家羲等人所证明．美国数学家Ｄｅ－ｎｎｉｓｔｏｎ于１９７４年用电子计算机找到了一个具体的完整解。本文给出了安排七周活动的一种手工解法．并提出了一类扩展的Ｋｉｒｋｍａｎ“女学生问题”和一些想法。希望对进一步用手工解法求它的完整解有所帮助。     

The biotransformation of tritiated 3-dehydroecdysone by crayfish,Procambarus clarkii

The injection of 3-dehydroecdysone (3dhE, 5 /g), the major ecdysteroid secreted by the Y-organ of crayfishProcambarus clarkii, resulted in apolysis within about 5 days. The hormonal response at the molecular level was investigated by injection of the radio-labeled compound; within 3 h of injection of [³H]3dhE, most radio-isotope was found in the extracted epidermal tissues and identified as ecdysone, 20-hydroxyecdysone (20E), and their 3-hydroxy epimers. The biotransformation was undoubtedly performed in the peripheral area of the Y-organ. Cleavage of the polar conjugates, using an enzyme fromHelix pomatia, gave all of the above ecdysteroids including 3dhE. It was also found that the biosynthetic site of 3dhE was different from that of ecdysone at the subcellular level of the Y-organ.     

Changes of the level of proteinase inhibitors in rat plasma during turpentine-induced inflammation

Summary The levels of rat plasma -macroglobulins, -cysteine proteinase inhibitor, haptoglobin and antipapain activity were studied during the acute-phase reaction after an injection of -pinen. An increase in concentration of all the compounds examined was observed.