逆反应

交联剂VTMS的引入，不仅使线性聚硅氧烷形成交联的弹性体网络，而且改变了端羟基硅氧烷的缩合平衡反应速率，抑制了逆反应，加快了聚合速率。

Introducing crosslink agent VTMS could change linear polysiloxane into crosslinked elastic network and influence the equilibrium of the condensation reaction of end-hydroxyl polysiloxane by inhibiting inverse reaction . The polymerization was speeded up as well .

真空条件不仅可以提高反应速率，而且对镁蒸气在冷凝过程中与CO或CO2的逆反应有较大抑制作用；

Vacuum can not only enhance reaction rate , but exhibit the reverse reaction of magnesium vapor by CO or CO2 ;

DEAD-boxRNA解旋酶在RNA的新陈代谢过程中起着重要作用，从RNA的合成到RNA的降解都需要它的存在，同时它对植物的生长发育和抗逆反应中起调控作用。

DEAD-box RNA helicase plays an important role in RNA metabolism , it is required for RNA synthesize to RNA degrade .

正逆反应的活化能分别为21.07kJ·mol（－1）和24.61kJ·mol（－1）。

The energy of activation of forward and reverse reactions were 21 . 07 and 24 . 61 kJ / mole respectively .

逆反应烧结是以Si3N4和SiC为原料，首先使Si3N4反向反应生成活性氧化物后进行烧结。

While in the reverse reaction sinter process , by using Si_3N_4 , SiC as raw materials , the Si_3N_4 is firstly converted into reactive oxides , then react-sintered .

结果表明：逆反应烧结工艺可制备出性能良好的复合物；Si、Al除可促进烧结外，还能提高致密层的密度和宽度。

The experimental results show that the converse reaction sintering is able to make high performance composites and metal Si and Al not only can promote the sintering but also can increase the density and width of compact layer .

甜菜碱醛脱氢酶（BADH）在植物抗逆反应中发挥着重要作用。

Plant betaine aldehyde dehydrogenase ( BADH ) is a physiologically important enzyme in response to salt or drought stress .

所制备的抗体也为相关功能研究，如免疫共沉淀、ChIP-on-chip、Pull-down以及抗逆反应等积累了资源。

The antibodies will also provide resources for functional studies , such as co-immunoprecipitation , ChIP-on-chip , Pull-down and stress response etc.

实验数据采用拟均相二级反应动力学模型进行回归，得出醋酸甲酯催化水解的正逆反应活化能为35.5和29.5kJ／mol。

The experimental data were analysed using homogenous kinetics models . From the results of the experiments , the apparent activation energy of the forward and reversible reaction were calculated to be 35.5 kJ / mol and 29.5 kJ / mol respectively .

考虑了对苯二甲酸乙二酯（BHET）缩聚过程的主反应、逆反应及热裂解反应，得到一个动力学方程式。

With the consideration of all the reactions involved in the polyesterification of BHET ( bis - β - hydroxyethyl terepliathalate ) such as the primary forward polycondensation reaction , its reverse reaction and the cracking reaction , a kinetic equation was derived .

结果表明：石英玻璃的脱羟是二级对峙反应，正方向是放热反应，活化能为153kJ·mol-1，逆反应活化能为306kJ·mol-1；

The results show that the process of dehydroxylation belong to a second order opposite reaction , the positive direction is an exothermic reaction with an activation energy of 153 kJ · mol - 1 , and the activation energy of negative direction is 306 kJ · mol - 1 ;

论证了逆反应烧结的热力学可行性。

So the thermodynamics feasibility of reverse reaction sintering is demonstrated .

逆反应烧结制备铝电解槽用氮化硅&碳化硅复合材料

Reverse reaction sintering of si_3n_4 / sic composite materials for aluminium electrobath

环氧丙烷皂化逆反应的研究

Studies on the reverse saponification reaction of epoxy propane

建立逆反应烧结工艺制备Si3N4/SiC复合材料的热力学基础。

Established the thermodynamics theory of reverse reaction sintering Si_3N_4 / SiC composites .

最后研究了逆反应对同位素浓缩过程的影响。

Finally , the effects of reversible reaction to the isotope enrichment was investigated .

时间反演不变性预言，一个反应和它的逆反应，其跃迁几率相等。

Time-reversal invariance predicts equality of transition probabilities for a reaction and its inverse .

该机理正反应与逆反应具有不同的反应路径。

The novel mechanism has different reaction pathway in the forward and the reverse process .

对于醋酸盐、反应11的逆反应可以与电子接受体反应组合在一起。

The reverse of Reaction 11 for acetate may be combined with the electron acceptor reactions .

讨论了正逆反应，催化剂颗粒度、压力、气体成份对有效因子的影响。

The influences of catalyst pellet size , pressure and composition of feed gas were discussed .

若逆反应的速度变得重要，则速度规律也就比较复杂。

If the rate of the back formation becomes significant , the rate laws become more complex .

根据这些函数，将计算推广应用到烷烃的C&H键断裂反应及其逆反应，以达到简化计算的目的。

Calculations of C & H bond cleavage reactions of paraffin could be simplified with these functions .

甚至在甲苯80℃的情况下，依然不能观测到明显的逆反应。

No obvious thermal back reaction could be observed even at elevated temperature in toluene at 80 ℃ .

一种可逆的化学反应：一个反应是氧化作用，它的逆反应是还原作用。

A reversible chemical reaction in which one reaction is an oxidation and the reverse is a reduction .

多胺是一类具有较强生理活性的低分子量脂肪族含氮碱，在植物抗逆反应中发挥着重要作用。

Polyamines ( PAs ) are low-molecular-weight biologically active compounds , playing important roles in plants response to environmental stresses .

采用小系统概率动力学模型对实验数据进行拟合，便得到了逆反应速率和反应亲和性参数。

Reverse kinetic rate and binding affinity constants were predicted by comparing the measured data with a small system probabilistic model .

混合岩的形成过程包括部分熔融作用、不同程度熔体分凝与汲取和不同程度的逆反应和退变反应。

The formation of migmatite includes partial melting , partial segregation and extraction of melt and partial back and retrograde reactions .

许多情况下，向前和其逆反应需要同一个和接近于一致的路径来维持循环。

In many cases , identical or near-identical pathways may be used for the forward and reverse reactions required to maintain cycles .

化学反应与它的逆反应以相同速度进行的过程。恋爱中也会伴有一定程度的生化反应。

A chemical reaction and its reverse proceed at equal rates . There 's a certain amount of biochemistry at work , too .

随着溶液中间二甲苯含量的增大，溶液的介电常数逐步减小，在溶液中进行的甲醇羰基化反应的正逆反应速率常数则逐步增大，同时间二甲苯含量的增大也使反应的活化能减小。

The increase in concentration of the solvent increases the forward and reverse rate constants , and decrease the activation energy of the reaction .