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The four reaction channels including hydroxyl-type benzaldoxime are endothermic reaction, thermodynamically non-spontaneous process, but the other four reaction channels including ion-type benzaldoxime participation are exothermic reaction and thermodynamically spontaneous process. The latter four reaction channels, which have lower reaction barriers, faster reaction velocities and bigger equilibrium constants than those of the former fours, are the chief reaction channels.

苯甲醛肟以羟基型参与反应的4个反应通道均为吸热反应和热力学非自发过程,它们均具有较高的反应势垒、较慢的反应速率和较小的平衡常数;而以离子型参与反应的四个反应通道均为放热反应和热力学自发过程,它们的反应势垒较低,反应速度较快,平衡常数也较大,故苯甲醛肟应主要以离子型参与反应。

The dehydration of dihydrate gypsum was affected, besides atmosphere and heating rate.

二水石膏的脱水性能除受气氛的影响外,还受到加热速度的影响,随着加热速度的提高,二水石膏脱水的吸热峰出现的温度点推后。

The performace of material was tested by DSC,XRD,SEM,EIS and charge-discharge cycles . The influences of various synthesized condition , sintering time and the amount of F were studied and correlative technics parameter to improve performance of material were optimized. DSC shows that three endotherimc peaks and one large exothermic peak are observed in the temperature range 150-400℃, which is because of the removal of water,the decomposition of the organic constituents and the formation of spinel. Only the citrate precursor is sintered at least 450℃, the crystallinity of spinel phase could be formed intactly.

通过DSC、XRD、SEM、EIS和充放电循环等手段对材料进行性能测试,比较了不同合成温度、烧结时间和不同掺杂元素量等条件对材料性能的影响,优选出提高材料性能的相关工艺参数, DSC表明,采用溶胶-凝胶-络合法制备的前驱体在150-400℃中有三个小的吸热峰和一个大的放热峰,这是前驱体中的水分、柠酸酸及其盐和醋酸及其盐在蒸发及分解,柠檬酸前驱体至少需在450℃以上才可能形成完整的尖晶石材料。

Its high-capacity and strong-acid-resistance were proved. In the acid condition, the adsorption efficiency to acide green 6B and direct fast yellow RL reached above 90%. Through the adsorption rate curve on adsorption behavior of the three dyes, they were all according with pseudo-secondary adsorption rate curve. The rate constant of adsorption increased with increasing temperature. Through the adsorption isotherm of the three dyes, acide green 6B and direct fast yellow RL were according with Langmuir equation, while disperse blue 56 was according with Freundlich equation. The adsorption behavior was an endothermic process. Entropy was increasing during the adsorption. So raising temperature was in favor of adsorption.

结果表明,甲醛环氧氯丙烷交联壳聚糖对染料具有较强的吸附性能和耐酸性能,在酸性条件下,对酸性绿6B和直接耐晒黄RL的吸附效率达90%以上;拟合甲醛环氧氯丙烷交联壳聚糖对三种染料的吸附速率曲线,发现该吸附行为符合拟二级吸附速率曲线,其吸附速率常数随温度的升高而增大;通过测定不同温度下甲醛环氧氯丙烷交联壳聚糖吸附三种染料的吸附等温线表明,甲醛环氧氯丙烷交联壳聚糖对酸性绿6B和直接耐晒黄RL的吸附符合Langmuir方程,而对分散蓝56的吸附符合Freundlich方程,甲醛环氧氯丙烷交联壳聚糖对染料的吸附是一个吸热过程,吸附后体系熵增加,升温有利于吸附。

The plant ventilation status under different conditions is calculated with steady k-ε turbulence model. Results show that different surface has a different impact on natural ventilation. The ground surface constructed with some good heat-absorbing materials will have an enhanced surface effect. The surface effect is fully put into effect at the maximum outdoor windspeed of 1.5m/s.

在稳态条件下,采用k-ε湍流模型,计算了不同工况下的厂房通风状况,结果表明,不同的地表对自然通风的影响是不同的,厂房内的地面采用吸热性能好的材料构筑,会增强地表效应;地表效应得以充分体现的最大室外风速为1.5m/s。

The copolymer derived from the copolymerization in high capacity kettle were testified that copolymerization between AN and MMA occurred. The microcapsules in the films are distributed in the copolymer film matrix. The heat-absorbing temperatures and heat-evolving temperatures of the films are almost the same as that of the MOCT, respectively. In addition, the enthalpy efficiency of MOCT, the melting enthalpy and the crystallizing enthalpy rises with the contents of MOCT increasing.The decomposition temperature of copolymers in the films containing various contents of MOCT decreases with the contents of MOCT increasing.

采用30升聚合釜合成了丙烯腈—甲基丙烯酸甲酯共聚物,证实了丙烯腈和甲基丙烯酸甲酯发生了共聚反应;正十八烷微胶囊分散和镶嵌到了共聚物膜基体中;正十八烷微胶囊含量不同的共聚物膜的吸热温度放热温度与纯正十八烷微胶囊的吸放热温度基本相同;随着正十八烷微胶囊含量的增加,共聚物膜的热焓和热效率逐渐增加;共聚物膜中的共聚物的热稳定性温度随着正十八烷微胶囊含量的增加逐渐减小,共聚物膜的结晶度则有所增大。

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