The steady counting rates of neutron in reactor are measured by a conventional instrument ( the start-up devices) to calibrate reactivity worth of a control rod.

1、

Measurment of Differential and Integral Reactivity Worth for Soluble Boron Poison on Light Water Lattice of UO_2 Rods and Comparison of the Control Rod Reactivity Worth

铀水栅上硼溶液微分、积分价值测量及控制棒效率对比

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2、

The reactivity worth of control rods at each phase of HTR 10, including initial, running in and balance phases, has been calculated by using this method.

文中给出了HTR－10各运行阶段（包括初装堆、过渡过程中期和后期、平衡换料等时期）的控制棒的反应性当量。

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3、

Measurement of Control Rod Reactivity Worth and Core Total Excess Reactivity for Pulsed Reactor by Soluble Boron Poison Method

用硼中毒法进行脉冲堆控制棒效率和总后备反应性测量

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4、

Reactivity worth calculation for the control rods and secondary shutdown system of HTR-10

HTR－10控制棒及第二停堆系统反应性当量计算

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5、

Reactivity worth calculation for control rods of HTR 10 at each phase

HTR-10各运行阶段控制棒反应性当量计算

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6、

Inherent safety of reactivity transient;

反应堆瞬变的固有安全性；

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7、

Under optimized conditions, the reactivity of a series of similar substrates to substituted benzoins was also examined and moderate to good yield were obtained.

在最优化条件下，将底物拓展到一些取代苯甲醛，取代苯偶姻能够达到中等至较高的收率。

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8、

Monomer reactivity ratios is the ratio of the rate constant for a reactive propagating species adding its own type of monomer to the rate constant for its addition of the other monomer.

单体竟聚率是指反应增长种加成到同种单体的速率常数与它加成到其它类型单体的速率常数之比。

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9、

Mixed resin FBZ/ 4 with 40% of the benzoxazine presents high reactivity compared with other ratio mixed resins by viscosity-temperature characteristics and DSC analysis.

苯并（？）嗪质量分数为40%的共混树脂FBZ／4，其粘温特性和DSC分析表明，反应活性优于其它几种共混树脂。

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10、

Attempting to calculate the monomer reactivity ratio ( m. r. r.) for binary copolymerizing system at high conversion by integral model, a formula has been derived by using the principle of the Tidwell-Mortimer nonlinear least square method with improved "optimization of initial value".

用Tidwell-Mortimer非线性最小二乘法计算原理，在计算步骤上作了有意义的改进后，导出能用于高转化率下计算一般二元共聚体系竞聚率的公式。

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11、

The results suggested that the decisive factor of the composition of the grafted copolymers was the reactivity ratio and the molar ratio of two monomers, which was testified further by the analyses of the IR and TGA.

接枝产物的红外、重分析进一步佐证了竞聚率对不同二元单体体系接枝生成物结构的影响。

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12、

The relationship between the value of n of nd ( op_r~ I)_ ( 3-n) cl_n-alet_3 catalyst system and the reactivity ratio(γ) of dienes

Nd（Op r~i）（3-n）Cl n-AlEt3催化体系中的n值和双烯竞聚率（γ）间的关系

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13、

By modifying the reacting monomer compostion or reactivity ratio, the copolymercompostion~ conversion relationship obtained by using copolymerization composition equation fitted well with experimental results.

在对共聚单体组成或竞聚率进行修正基础上，根据共聚组成方程计算的共聚组成～转化率关系与实验结果吻合较好。

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14、

The monomer reactivity ratio of copolymerization of acrylonitrile with dimethylaminoethyl acrylates and the composition of the copolymer

丙烯腈与丙烯酸烷氨基酯共聚合的竞聚率及共聚物组成

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15、

Monomer reactivity ratio measurement of Perfluoromethyl vinyl ether with some vinyl monomers containing fluorine in emulsion copolymerization

全氟甲基乙烯基醚和其它含氟单体乳液共聚合的竞聚率测定

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16、

Through fitting the experimental data about the A conversion dependence of structural units, the reactivity ratio of groups for different units was obtained.

通过拟合在不同A官能团转化率下结构单元比率的实验数据，我们成功得到该聚合体系不同结构单元的反应活性比。

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17、

Monomer reactivity ratio measurement of tetrafluoroethene/ vinylidene fluoride in emulsion copolymerization

四氟乙烯/偏氟乙烯乳液共聚反应的竞聚率测定

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18、

The result shows: with the increase of the addition level of assistant consumption, the reactivity ratio of potassium have improved.

结果表明：钾的反应率随着助剂用量的增加而提高。

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19、

A calculating method has been inferred for the reactivity ratio of semicontinuous reactors.

本文推导了一种半连续式反应器反应速率的计算方法。

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20、

Monomer reactivity ratio of butadiene-isoprene copolymerization and structure of copolymer

负载钛系催化丁二烯-异戊二烯共聚合的竞聚率及共聚物的结构

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