查询词典 reaction rate

It is researched the influence of cooling rate and the content of silicon and manganese alloy on peritectic reaction and position of peritectic point in Fe-C alloy.

研究了冷却速率和硅、锰合金元素含量对Fe-C合金的包晶反应和包晶点位置的影响；由于CSP薄板坯冷却速率快，Fe-C相图向左下方移动，包晶反应区域的碳含量为0。

Influence of cooling rate, silicon and manganese content on the peritectic reaction and peritectic point of Fe-C alloys has been studied by the experimental data and production data for solving the problem of longitudinal surface cracks.

包晶反应对铸坯表面质量影响严重，笔者针对邯钢CSP生产线的表面纵裂问题，利用实验和生产数据研究了冷却速率和硅、锰合金元素对Fe-C合金的包晶反应和包晶点位置的影响。

The rate constant of thereaction of pyrocatichol with organic peroxyl radicals is about 1～2 orders higher thanits reaction with superoxide anion radical.

邻苯二酚与有机过氧自由基的反应速率要比与超氧阴离子自由基的反应速率高1～2个数量级。

Appropriate adsorbing conditions were phosphotungstic acid / carbon mass rate of 30 percent,temperature of 70℃,reaction time of 6h.Adsorption quantity amounted to 20.8 percent.

随着担载量的增加，催化剂的活性增强，磷钨酸与活性炭质量之比30%，温度70℃，时间6h，担载量达20.8%，合适的活化温度为180℃。

With NMR and DFT methods, the Michael additions of alkynyl Fischer carbene complex with a series of substituted pyrazoles as nucleophiles were also studied. All reactions follow the same three-step pathway mechanism described above. Substituents on 3-, 4- and 5- positions of the pyrazolyl ring affect the reaction in the steric and electronic manners, even to change the rate-determining step.

一系列取代吡唑与1-炔基Fischer卡宾化合物的Michael加成反应都遵循前面提出的三步机理，其中吡唑的3-， 4-， 5-位分别从电子效应和立体效应方面不同程度地影响着反应的进行，甚至改变反应的决速步骤。

The hemolysis rate is no more than 0.05% and no pyrogenetic reaction after injecting extracting solution into vein of rabbit.

生物相容性评价：ICHA水泥浸提液和试件与骨髓基质细胞共培养，细胞生长形态良好，数量逐渐增加，细胞毒性反应为0—Ⅰ级，基本无毒性。

From the research, it is concluded that the sintering mechanism of AlN with Y 2O 3 is the solution reprecipitation process controlled by the rate of boundary reaction.

用最小二乘法回归分析实验数据，依据现有的烧结理论研究后表明，添加Y2O3的AlN材料的中后期烧结机理为相界反应速率控制的溶解—淀析过

In this paper,the rate constant and equilibrium constant of the crack reaction of methyl silicane were obtained with the transition state theory and quantum chemistry calculation.

本文采用过渡态理论和量子化学计算方法，首次计算得到了甲硅烷裂解反应的速率常数和平衡常数，并对结果进行了讨论。

Finally statistical analysis is conducted.Result: Orally taking Xuefu Zhuyu Tang and calming-wind medicines can ease stenocardia,improve ECG,enhance the stopped rate of nitroglycerin,better the heart contraction and dilation,regulate blood fat,promote blood rheology,lower CRP、ET、TXB2,raise NO、6-keto-PGF1αand so on,compired with the control group,it is obviously statically meaningful without obvius adverse reaction.

结果：血府逐瘀汤加治风活络药物内服治疗能有效地缓解心绞痛和临床症状；改善心电图；提高速效扩冠药的停减率；改善心脏的收缩及舒张功能；调节血脂；改善血液流变学；降低CRP、ET、TXB2的水平，升高NO、6-keto-PGF1α的水平等，与对照组相比，有显著的统计学意义，且未发现明显的不良反应。

It showed that, compared with other catalysts, SO(superscript 2- subscript 4)/TiO2-ZrO2 was more active to bring about more than 95% conversion rate of stillingia oil under the transesterification conditions of 150℃, molar ratio of methanol to oil 12:1, catalyst amount 5% and reaction time 6h.

结果表明，催化剂SO(上标 2-下标 4)/TiO2-ZrO2表现出了较高的催化活性，SO(上标 2-下标 4)/TiO2-ZrO2催化的最佳酯交换反应条件为：反应温度150℃，醇油摩尔比12：1，催化剂用量5%，反应时间6h，此时乌桕籽油的醋化率超过95%，且催化剂重复和再生使用效果良好。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。