热化

The freezing on the cooling water column of heating power plant in winter can cause serious damage to the equipment.

热电厂冷却水塔冬季结冰对设备损坏严重，通过分析冷却水塔易结冰的部位和结冰原因，在比较各种冷却水塔冬季防冻方案后，最终采用自流反射双向化冰防冻管并加大进入防冻管的热水量来解决冷却水塔冬季结冰问题。

The catalytic activities of some coordination polymers in synthesis of DPC from oxidative carbonylation of phenol were investigated. Palladium complex Pd(C_2O_4)·0.5(C_4H_8N_2) has better catalytic activity in the typical reaction condition, it was synthesized with PdCl_2, oxalic acid and piperazine hexahydrate by solvothermal method under low temperature and characterized by IR, EA and TG.

以一些配位聚合物作为主催化剂考察它们在苯酚氧化羰基化生成碳酸二苯酯反应中的催化活性，经过比较，筛选出配位聚合物Pd(C_2O_4)·0.5(C_4H_8N_2)(在低温条件下以溶剂热法合成)，采用IR、TG，EA和比表面分析技术对它进行了表征。

The relative molar concentration ratios of c(superscript * subscript NO)/c(superscript * subscript NO2) changes as the temperature and pressure change. These results reveal that the two competitive reactions of C-NO2 homolysis (to form NO2) and isomerization may occur during the fast thermolysis of DNTF. NO formation from the cracking of furazan or furoxan rings may be limited by pressure.

结果表明，DNTF快速热裂解的主要产物CO、CO2、NO和NO2的相对摩尔浓度c与温度和压强有关，通过分析相对摩尔浓度比c(上标*下标 NO/c(上标*下标 NO2)随温度和压强的变化，揭示了DNTF中碳硝基C-NO2存在均裂生成NO2和异构化生成NO两条竞争分解的可能途径，同时压强可能抑制呋咱环和氧化呋咱环生成NO的可能性。

In this article, a mathematical model of enthalpy of formation for rare-earth hydride is established on the basis of the experimen...

本文应用微观结构参数法和大量的实验数据，建立了稀土贮氢合金氢化反应生成热的数学模型。

The change of R has also effects on hygroscopicity, thermodynamic stability, glass transition temperature and mechanical strength.

DMPA用量及R值的改变会影响乳液的外观、粘度、平均粒径、稳定性、固化速率等性能。R值的改变还会影响胶膜的吸水率、热稳定性、玻璃化温度、力学性能等性能。

The results indicate that the flow stress of the alloy increases with increasing strain rate and decreasing deformation temperature. The flow stress increases with increasing strain until the stress reaches the peak value, then the flow stress remains constant, which indicates that dynamic recrystallization happens during deformation. The flow behaviors are described by the hyperbolic sine constitutive equation, and the activation energy calculated is 337.75 kJ/mol. The as-forged microstructure consists of refined α2/γ and γ grains, and the grains are much homogeneous than before. The B2 phase distributes uniformly at the grain boundary of α2/γ and γ grains. The B2 phase decreases with increasing deformation temperature.

结果表明：流变应力随着应变速率提高和变形温度降低而增大；在变形过程中，流变应力随着变形量增大而增大，当流变应力达到峰值后趋于平稳，表明合金在变形过程中发生了动态再结晶；热变形过程的流变应力可采用双曲正弦本构关系来描述，平均激活能为337.75 kJ/mol；从合金的组织演化过程中可以看出，合金中不均匀的原始组织得到明显均匀化，变形后的组织是由α2/γ层片晶团和γ晶粒组成的双态组织，在α2/γ层片晶团和γ晶粒的晶界交界处发现分布均匀的B2相，并且随着变形温度升高B2相数量逐渐减少。

Exploitation of novel botanical idioplasm materials by bioengineering technology not only has very important social significance, but also become a hot point of study of modern bioengineering technology and area of plant improving.

热岛效应、温室效应、环境污染、土壤的盐碱化和耕地的荒漠化等现象对农作物、经济植物和植被植物的生长发育产生了严重的逆境胁迫作用。

For such reasons, the author investigated comprehensively on cropping systems and agriculture development in Fenxin County from 2002 to 2004, using mathematics model and GIS, discussed the cropping systems characteristic and development orientation and optimized the cropping systems spatial distribution. The data were collected from literature, questionnaires to experts and farm households, on-site investigation and field experiments. The main results are as follows:1,Because of inconsequent exploitation and management of the resources, rapid increasing population in hilly region of red soil, the stress on soil, deterioration of farmland ecological environment and soil gleization become more and more serious. Natural features , water and thermal resources and species are abundance.

基于以上目的，作者于2002-2004年，通过资料调研、专家咨询、农户调查、实地考察和田间试验等手段，对江西奉新县的种植制度和农业发展进行了全面的调查，通过建立数学模型和运用地理信息系统，对奉新县的种植制度的特征和发展方向进行了全面的论述，并且对种植制度进行了空间布局优化，主要结果如下： 1、红壤丘陵区由于长期以来对资源的不合理利用和掠夺式经营以及人口的急剧增长，土地压力上升，农田生态环境恶化，土壤潜育化，土壤肥力退化非常严重，但区内自然条件优越、水热资源总量丰富、物种丰富，具有一定的区位优势，为区内种植制度调整提供了有利条件。

The variable connectivity index is used in the modeling of the physical properties of polymers. A new model is proposed for the heat capacity at constant pressure of solid and liquid polymers at room temperature, which is simple and has good accuracy as well as predictive capability.

率先把可变连接性指数应用于聚合物物理性质的模型化研究中，并对聚合物热容数据建立了比以前模型结构简单且精度更高、预测性更好的新模型，促进了种新型指数的广泛应用。

The test measurements at the roadbed of the Hua Shixia in the National Road 214 (Qinghai-Sichuan Highway), are also introduced to check and compare the distribution and development of the temperature and deformation fields by the numerical analysis, in order to reveal the inhesion mechanism of the thermodynamics in the freezing heaving and thawing of the frozen soil engineering.

本文试图从正冻土的热、质与水分迁移的根本机理上全面描述冻土体的冻胀融沉变形特性与规律，从而将冻土工程当前的以温度为基点的、经验化为主的设计原则与准则向以冻土变形与工程稳定为基点的、科学量化为主的设计理论与设计方法方向迈进一大步。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。