公用的

The following points are emphasized:The operation models of adiabatic and diabatic distillation have been set up and the operation block, thermodynamics model and mathematical model in the simulation have been determined as well;(2)Based on the simulation and exergy analysis with Aspen Plus program, shortcut distillation design—DSTWU model and rigorous distillation design—RADFRAC model, the author has determined the heat duty, exergy losses and the distribution of exergy losses along the adiabatic column, which will help the simulation and optimization of the diabatic distillation;(3)Diabatic distillation under various operation conditions has been simulated by using energy balance method and exergy analysis;(4)How the different mixture and the various degree of separation, number of trays and feed location influence exergy saving in diabatic distillation have also been discussed;(5)On the basis of the total exergy losses along the column, different schema of the heat transfer distribution along the column have been compared and analyzed;they can be classified in three categories: heat duty equipartition approach, empirical approach, separation degree matching approach. In conclusion, different heat transfer distribution along the column will have effect on total exergy losses. In particular, most satisfactory results have been obtained by using separation degree matching approach. In order to diminish the exergy losses, heat transfer distribution should meet the needs of the request of separation degree.And on this premise, the author makes his suggestion in increasing the proportion of heat supplied to the tray with minimum exergy losses and decreasing the proportion of heat supplied to the tray with the maximum exergy losses.

本文对透热精馏过程进行了模拟并对其节能效果的影响因素做了较为全面的分析和深入的研究，主要研究内容如下：(1)建立了常规精馏和透热精馏过程的模拟操作模块、热力学模型以及数学模型；(2)利用化工模拟软件Aspen Plus并分别采用DSTWU简捷模型和RADFRAC严格计算模型对常规精馏进行模拟计算和有效能分析，确定常规精馏塔的公用工程热负荷、有效能损失及有效能损失在塔内的分布，为透热精馏的模拟和优化提供数据参考；(3)对不同物系在不同分离度条件下进行透热精馏的模拟，分别采用能量衡算法和有效能分析法进行计算和分析；(4)探讨了各种因素如物系的选择、不同分离度、塔板数、进料位置对透热精馏节能效果的影响；(5)以全塔总有效能损失为比较基准，对热量在塔内的三种分布方案即热负荷平均分配法、经验法和分离度匹配法进行了对比分析并得出结论：塔内热量的不同分布方案对于全塔总有效能损失会产生影响，其中以分离度匹配法的节能效果最为理想，为减少有效能的损失，应使塔内的热量分布满足各塔板的分离度要求，并在此前提下，尽量减小有效能损失大的塔板的热负荷和增加有效能损失小的塔板的热负荷。

The whole thesis is divided into nine chapters, its first six chapters focus on the analyses of terrorism, then the last three chapters turn to studying a new thinking of international cooperation against terrorism On the analyses of the part of terrorism with the first three chapters, I define terrorism as follows: Terrorism is a kind of action or thought in which it is the intentional use of, or threat to use ruleless violence or technical methods against civilians or against civilian targets, in order to attain political aims. What differs from other scholars' definitions is that the definition proposed states that terrorism is not only a political violence, but also a social trend of thought.

在前六章的对"恐怖主义"的分析上，本文提出了有别于他人的恐怖主义定义："使用或主张使用无规则的暴力或技术手段，或是袭击平民和或是袭击公用设施，以图达到政治目的的一种行为与社会思潮"，认定恐怖主义不仅是一种政治暴力行为，更是一种社会思潮；还对自杀性恐怖主义、恐怖主义的类型和划分、恐怖主义的历史与发展历程、恐怖主义形成的机理及理论解释等论题进行了较系统的理论探索，分析了伊斯兰原教旨主义与恐怖主义的关系；而且，还根据论文作者本人在国外调研掌握到的大量翔实的第一手资料，揭示了境外"东突"恐怖分子是"国际恐怖主义的一部分"的本来面目，并分析和预测了它们未来的发展趋势，提出了中国反对东突恐怖势力的若干建议。

What we have here is a pragmatic response to a situation in which regulated companies find their drive toward "marginalism" impeded by regulatory commissions anxious to prevent addition of nonremunerative, but nevertheless rate base-inclusive, services to the utilities' offerings.

我们已经在这里是对一种情形的一个忙碌的回应在哪一管理公司找他们的向被渴望的管制佣金妨碍的&marginalism&的推进力避免附加非有报酬的，但是然而估价基础-包含在内的，对公用程序的提供维修。

Especially for the fluid containing sand, cutting may damage the sealing surface 5, soft sealing gate valve of the operating temperature limits by sealing material Valve When the need for good throttle Cast Gate, Globe, Check Valves control (such as control valves or bypass pipe had a small vent), the stop valve is the most appropriate Ball When the operating temperature between-29oC to 200oC, most manual valve suitable for hydrocarbon and utility systems operations, the use of the ball at 100oC above, applications should be carefully considered when the temperature of the soft sealing material limit should be more than 100oC.

尤其对于含有砂的流体，旋塞阀节流会损坏密封表面5、软密封闸阀的操作温度受密封材料的限制截止阀当需要好的节流控制（如控制阀的旁通管路或有小的排气孔）时，截止阀是最合适的球阀当操作温度在-29oC至200oC之间时，大部分手动球阀适应于烃及公用系统的作业中，在100oC以上使用的球阀，应用时要仔细考虑软密封材料的温度限制应该在100oC以上。

In addition, programmes may require candidates to demonstrate readiness for graduate study through a specific standard of achievement in: a common placement examination (eg: the subject GRE, GMAT); or a programme-administered placement test in the relevant field (which may also consist of a structured interview to test the candidate's understanding of the field); or completion of 40 MCs of preparatory modules.

另外，计划可以要求候选人通过一个成就的具体的标准为研究生学习证明愿意在里：公用草地安排检查(例如：那些主题GRE，GMAT)；或者在相关的领域的一次计划管理的编班考试(哪个可能也由要测试候选人' s理解领域)的一次组织的接见组成；或者准备的模件的40 MCs的完成。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。