用I／O口实现电池电压线性检测

利用PIC16C62单片机的I／O接口和定时捕捉功能，来获取比较器产生电位跳变的时间；通过对RC充电特性曲线的计算，实现A／D转换。     

Identification of sex pheromones of four economically important species in genusDendrolimus

The female-produced sex pheromone of Dendrolimus superans was identified by gas chromatography (GC), coupled GC-mass spectrometry (GC-MS), electroantennographic (EAG) studies and field tests as a blend of (Z,E)-5,7-dodecadienal (Z5,E7-12:Ald) and (Z,E)-5,7-dodeca- dien-1-ol (Z5,E7-12:OH). In D. kikuchii, (Z,E)-5,7-dodeca- dien-1-yl acetate (Z5,E7-12:OAc) and Z5,E7-12:OH were found by GC and GC-MS analyses. However, in EAG studies male antennae were more sensitive to Z5,E7-12:OAc and (Z,E)-5,7-dodecadien-1-yl propionate (Z5,E7-12:OPr) than Z5,E7-12:OH. For D. spectabilis, Z5,E7-12:OH had been previously reported as the sex pheromone. However, in our studies, traps baited with Z5,E7-12:OH, Z5,E7-12:OAc and Z5,E7-12:OPr in a ratio of 1:1:1 caught three times more males than those baited with Z5,E7-12:OH alone. Relatively strong EAG responses were elicited from male antennae by Z5,E7-12:OH, Z5,E7-12:OAc and Z5,E7-12:OPr, but in addition to Z5,E7-12:OH, only very small amounts of Z5,E7- 12:OAc was found in the pheromone gland. These facts suggest that Z5,E7-12:OAc is a pheromone minor components and Z5,E7-12:OPr is a sex attractant in D. spectabilis. For D. tabulaeformis, Z5,E7-12:OH, Z5,E7-12:OAc and Z5,E7-12: OPr were found in extracts of pheromone glands of female moths, and the three compounds elicited strong EAG responses from antennae of male moths. These three compounds have been reported as a sex attractant of D. tabulaeformis, and our data confirm their roles as components of the sex pheromone of this species. The role of blend components in antagonizing cross attraction between congeners is discussed.     

基于断层CT体视化的计算机处理研究

通过CT扫描 ,可获得病人的定位层面图象 .然而 ,医师在头脑中很难建立立体化模型 ,且难以准确定位 .本软件系统将人体的各个器官及病变部位还原为三维立体 ,并实现旋转、着色、放大、缩小等功能 ,为医师的治疗计划提供强有力的依据 .     

反相液相色谱法测定维生素D_2微粒胶囊

采用反相高效液相色谱法测定维生素D2 微粒胶囊中VD2 的含量。用AlltechC18柱 ( 1 5 0mm× 4 6mmID ,3μm) ,流速为 1 0mL·min- 1,流动相为V(甲醇 )∶V(水 ) =90∶1 0 ,以苯并 [e]芘为内标 ,UV2 6 5nm检测 ,本法简便、准确、重现性好[1] [2 ] 。     

三维变异函数的稳健统计学计算方法及其应用

在应用地质统计学进行矿床建模工作中，变异函数的计算和拟合占有非常重要的地位，其结果的好坏将直接影响建模效果．针对传统变异函数计算及拟合方法的缺陷，运用稳健统计学理论，讨论了三维情况下实验变异函数的计算以及拟合方法．矿床建模实践表明，采取上述技术取得了良好的效果．     

果蝇内含子和编码序列的信息参数D_2沿染色体分布

本文以果蝇染色体的内含子和编码序列作为研究对象,用信息参数D2分析两类序列沿着染色体的分布规律,并用多项式拟合分析染色体各类序列沿染色体的统计分布特征,分析D2参数的平均值在不同的染色体臂的分布特征.     

三维FDTD中完全匹配层的应用

介绍了完全匹配层推广到三维情况，并且在ＦＤＴＤ方法中应用于完全匹配层吸收边界计算了自由空间中电偶极子辐射问题，得到了非常精确的结果。     

中国蜜环菌生物种E与其它种的相互关系

中国蜜环菌生物种Ｅ（ＣＢＳ Ｅ）建立时仅包括２个菌株，尚未建立起完整的交配型交配菌株体系，与其它中国蜜环菌生物种的相互关系也不清晰。依据交配试验结果，将原ＣＢＳ Ｅ中的９２０１８归属ＣＢＳ Ｃ，将９２０１１归属于ＣＢＳ Ｄ，即把ＣＢＳ Ｅ合并为奥氏蜜环菌ＣＢＳ Ｄ，Ａｒｍｉｌｌａｒｉａ ｏｓｔｏｙａｅ（Ｒｏｍａｇｎ．）Ｈｅｒｉｎｋ。     

氯化胆碱合成新工艺研究

本文研究了以大孔强碱阴离子交换树脂为催化剂,氯乙醇和三甲胺为原料合成氯化胆碱的新工艺,在优化条件下,产率可达99%以上.     

酸性树脂催化合成苹果酯的新工艺研究

以酸性树脂为催化剂，由乙酰乙酸乙酯与乙二醇合成苹果酯，研究了催化剂用量、原料配比和反应时间对酯化反应的影响．结果表明：当原料配比为１∶１．２５，催化剂用量为３％，反应时间４ｈ时，产物收率可达９５．５％，催化剂经１０次重复使用后其性能仍保持稳定．