turnover number

The complex exhibited a high catalytic actvity on the hydrosilylation of olefins with triethoxysilane . Even at a molar ratio of olefin to complex of 10 ~ 5 , the hydrosilylation reaction took place smoothly with the turnover number more than 80,000 .

该配合物用量为烯烃摩尔数十万分之一时，仍能有效地催化烯烃与三乙氧基硅烷的硅氢加成反应，单程烯烃转化数可达80000。

Research on aero-engine turnover number and controlling method

航空发动机周转量计算与控制

The catalyst prepared through macroporous aminomethyl resin showed the most efficient in the catalytic oxidation of ethylbenzene with moderate yields ( total yield up to 69.9 % , turnover number 55.3 ) . The yields of these compounds are moderate .

其中，使用大孔氨甲基树脂为载体合成的催化剂能有效地催化乙苯氧化得到较好的转化率（总收率达69.9%，TON值达55.3）。

Sensitive assays require a highly purified enzyme with a high turnover number , and a low detection limit for the reaction product . Diagnostic enzymes produced by recombinant DNA technology , which increased yield and quality of enzyme and simplified preparing process , improved the development of EIA greatly .

利用基因工程生产诊断用酶，使酶的纯度大大提高，产量及质量均较自然来源酶好，简化了制备程序，大大促进了酶免疫分析技术的发展。

A range of factors was used to assess the candidates : biographical data ; size , scope and complexity of the company ( including turnover and number of employees , number of sectors and countries of operation ) ; and competitive landscape .

用来评估候选人的一系列因素包括：个人履历；所在公司的规模、业务范围和复杂程度（包括营业额、雇员人数、部门数量和已在哪些国家开展业务）；以及竞争版图。

One-way transit time , turnover time , the number of passenger capacity and operational vehicles and so on can have the influence to the travelers ' choice . These are the main parameters optimization of bus operation organization mode indicators .

公交车辆运行的单程时间、周转时间、载客量以及运营车辆数等都会对出行者的选择产生影响，是对常规公交运营组织方式进行优化的主要参数指标。