查询词典 exothermic

The activation energy of each exothermic reaction has been calculated.

计算了晶化过程各放热转变的激活能。

He extraction equilibrium is an exothermic reaction and the extraction enthapy of americium is -80.54、-81.99 and-75.88 kJ/mol for TBOPDA,T i BOPDA and TBDOODA,respectively.

BOPDA、TiBOPDA和TBDOODA萃取镅的反应焓变分别为：- 80 5 4、- 81 99和- 75 88kJ/mol；求出了萃取反应自由能和熵值的变化；观测了不同平衡酸度下萃入有机相中金属离子的可见吸收光谱。

Fujian Fuzhou SanBang chemical Industry Co., Ltd have developed and produced the invest casting S-GRJ-1430 and S-GRJ-830 colloidal silicon and exothermic padding with feedex for special purpose,and also produced the series colloidal silicon for fire resistant material,paint,food,battery and iron,and it concurrently manages many kinds of invest casting materials of antifoam agent,wetting agent,fused quarez powder and stone,mulgrain flour,mulgrain sand and slag catcher.

产品：精密铸造专用S-GRJ-1430、S-GRJ-830硅溶胶和冒口发热保温剂。耐火材料、涂料、食品、电池、钢铁专用系列硅溶胶。消泡剂、润湿刘、熔融石英砂粉、马来粉、马来砂、除渣剂等精密铸造辅料。

This article inspects the curing product the oxidized exothermic reaction active influencing factor, catches fire from the theory and the experimental result analysis iron pyrites oxidation exothermic initiation with explosion accident's reason, thus proposed that prevents the oil quality storage tank to catch fire with the detonation measure.

本文考察硫化产物的氧化放热反应活性的影响因素，从理论和实验结果分析硫铁化物氧化放热引发着火和爆炸事故的原因，从而提出防止油品储罐着火和爆炸的措施。

But the accuracy of same sample' peak exothermic temperatures was not good, and peak exothermic temperatures of various age samples were ruleless to their relative ages.

结果表明：同一样品峰温的重现性差，不同书写时间样品的峰温随时间变化无序。

After analyzing the ingredient of the imported exothermic/insulating riser sleeve, three sorts of commonly used sylvite oxidizers was selected and the influence of their mixture ratio on the ignition time, exothermic duration and the exothermic power of the riser sleeve was investigated.

由于氧化剂对发热保温冒口套的发热性能有着决定性的影响，笔者在分析了进口商业用发热保温冒口套组成的基础上，选择了三种钾盐氧化剂，研究了这些钾盐氧化剂不同加入量对发热保温冒口套的点燃时间、发热持续时间及发热功率的影响。

Based on this principle, the mathematical model of an exothermic reactor is established to caculate Exothermic reator length L corresponding to reation temperature T, reation temperature T corresponding to ammonia mole fraction y and the average internal reactor wall temperature Tave corresponding to exergy output Enet and thermal power output Q. The curves of L-T, T-y, Q/Enet –Tave are drawn with the caculated date which can directly reflect the influence of reactor inlet gas temperature and reactant flow rate on ammonia synthesis reaction for the reactor under the conditions of definite design pressure and hydrogen/nitrogen ratio. Furthermore, the design parameters to realize maximum exergy output and thermal output are presented.

文章分析了储能体系的选择，介绍了氨基热化学储能的基本原理，在此基础上建立了放热反应器的数学模型，计算和绘制出了L-T、T-y以及热量和佣输出与反应器内壁平均温度之间的关系曲线，直观地反映了在一定的设计压力和氢氮比条件下，进气温度和进气流率对放热反应的影响，给出了实现佣最优化和热能最优化的操作参数。

From the potential energy profile, it can be predicted that, the dominant channel of this reaction consists of three steps: the two reactants first form a three-membered ring intermediate (INT1) through a barrier-free exothermic reaction of 19.2 kJ/mol; three-membered ring intermediate (INT1) isomerizes to a four-membered ring silylene(P2) via the transition state (TS2) with an energy barrier of 22.8 kJ/mol; four-membered ring silylene(P2) further reacts with ethene(R2) to form a silicic bis-heterocyclic compound (P3), which is also a barrier-free exothermic reaction of 132.2 kJ/mol.

用CCSD//MP2/6-31G*方法研究了单重态二甲基亚烷基硅烯与乙烯生成硅杂双环化合物环加成反应的机理，根据该反应的势能面可以预言，该反应的主反应通道有三步组成：第一步是两反应物（R1， R2）首先生成了一三元环中间体（INT1），它是一无势垒的放热反应，放出的能量为19.2 kJ/mol；第二步是三元环中间体(INT1)经过渡态TS2异构化为了四元环硅烯（P2），其势垒为22.8 kJ/mol；第三步是四元环硅烯（P2）进一步与乙烯(R2)反应生成了硅杂双环化合物（P3），该反应也是一无势垒的放热反应，放出的能量为132.2 kJ/mol。

WF exothermic welding is Weaflida's patent product in China, which has the best quality in China as the same product in U.S and U.K. So WF Exothermic welding powder is qualified by national authority test department.

WF放热焊接是Weaflida在中国的专利产品，其放热焊粉也通过了国家权威部门的检测，因此在中国市场上它是同类产品中质量最好的，并达到了美国，英国在此产品中的生产标准。

The DSC analysis showed that the cold-setting process of PRTF copolymer resins was an exothermic reaction, and the heat flow appeared mainly at the initial stage after the hardener added, and then trended to relax. The PRTF-B7 copolymer resin made from China fir bark extractives had the exothermic peak more obvious than those made from Taiwan acacia bark extractives.

以DSC分析显示其硬化过程为一放热反应，且在硬化剂添加后之初期反应较为明显，随后即趋於平缓，以杉木树皮萃取物为原料之PRTF-B7共聚合树脂有较明显之放热峰。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。