微水相酶催化乙酸三甲基硅甲酯的氨解反应

从不同来源的脂肪酶中筛选出能催化非天然底物－－乙酸三甲基硅甲酯的氨解反应且具有较高活性的脂肪酶，并首次探讨了氨源，有机介质，反应初始水活度和温度对该酶促反应的影响。     

时间乘子加权广义预测控制

提出一种具有时间乘子加权性能控制的广义预测控制算法，此方法能提高系统的稳定性，同时与其他算法相比提高了系统的瞬态响应，文中还给出这种加权下广义预测控制渐进稳定的充分条件，仿真实验说明了算法的有效性。     

温度的等价类定义

用现代数学中的等价类概念定义了热力学中的温度概念。     

炮孔中的水中爆炸冲击波

本文分析了含水炮孔爆破时,水中爆炸冲击波形成和传播的规律以及对孔壁的冲击作用.     

测定保温材料导热系数的自补偿圆管法

测定保温材料导热系数的自补偿圆管法⒇王素美宗祥康施明恒（东南大学动力工程系，南京２１００１８）测定工程保温材料，特别是管形保温材料导热性能，一般采用圆管法［１］．圆管法的基本原理是通过圆筒壁的一维稳态导热［１，２］．被测试材做成圆管状，置于圆管导热装...     

石英管烧结成型设备的微机控制

介绍石英管烧成型设备－－气炼机的微机控制系统，系统采用双ＣＰＵ单片微机微机控制四台步进电机以完成气炼机的多种复杂运动，文中介绍了控制系统的硬件和软件结构。     

乳状液的热力学特征及其它

本文较详尽地介绍了乳状液的稳定性理论、乳状液类型的测定、变型、去乳化等基本特征。     

超临界CO2介质中反胶团的形成与热力学

以甲基橙为溶剂化探针，根据其在超临界CO2／表面活性剂／助表面活性剂多元体系中的增溶情况，推断在正丁醇作用下，二辛酯琥珀酸磺酸钠（AOT）与辛基酚聚氧乙烯醚（TX-10）在超临界CO2介质中形成了反胶团．反胶团的形成是一个热力学自发过程：对于非离子表面活性剂TX-10，形成反胶团的主要动力来源于体系熵增加．对于阴离子型表面活性剂AOT，在低温下，熵增加是反胶团形成的主要动力；温度较高时，焓变成为反胶团形成的主要推动力．     

烟尘水热化合反应制备钙基脱硫剂工艺优化

运用均匀试验设计和回归分析方法优化烟尘水热化合反应制备钙基脱硫剂工艺,得到比表面积回归方程．分析不同水热条件及其相互作用对钙基脱硫剂比表面积的影响,经优化筛选并兼顾实际操作得到最佳水热条件,制备的高效钙基脱硫剂比表面积超过120 m2/g,是单一Ca(OH)2的10倍以上,优化效果显著,可以为工业生产提供依据．     

Induction of nicotine in tobacco by herbivory and its relation to glucose oxidase activity in the labial gland of three noctuid caterpillars

Tobacco Nicotiana tabacum L. is a host plant ofHelicoverpa armigera (Huibner), Helicoverpa assulta Guenee and Spodoptera litura (Fabricius) (Lepidoptera, Noctuidae). The difference in leaf nicotine response to the feeding by these three larvae and the mechanical simulation of their feeding was examined by HPLC. Results indicated that nicotine induction was suppressed by H. armigera and H. assulta larvae feeding or by simulated damage treated with their labial glands extracts. The production of nicotine was also suppressed by the glucose oxidase from Aspergillus niger when it was treated on mechanically wounded leaf area. On the contrary, the nicotine production was stimulated by S. litura larva feeding or by simulated damage treated with its labial gland extract. Heat denature can not counteract the stimulation effect of the S. litura labial gland extracts to tobacco nicotine production. The glucose oxidase activity was detected in labial gland extracts of both H. armigera and H. assulta, but the activity in H. armigera was significantly higher than that in H. assulta. No glucose oxidase activity was detected in labial gland extracts of S. litura. It is shown that the glucose oxidase activity in labial glands of caterpillars plays an important role in the nicotine response to herbivory. The glucose oxidase was mainly contained in the labial gland of H. armigera larva, and had the highest activity at pH 7.0. D-Glucose was the optimal substrate of the glucose oxidase. Labial gland glucose oxidase activities varied daily during larval development with high activities found when larvae were actively feeding.