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At first, the rought C〓F〓 mixed gases are obtained by pyrolysis process of R22. A experimental pyrolysis device is designed and made by ourself. The optimum operating conditions are offered in the paper. Secondly, the much efforts is on the synthesis of R134. After through the discussion of basic thermodynamics and kinetics, selecting and preparating catalyst, it is possible that the synthesis of R134 by pyrolyzed gases hydrogenation. Base on the character of catalytic process, the kinetics equation about C〓F〓 catalytic hydrogenation is established. The rate constant of the reaction is obtained through experiment data regression. In order to achieve higher yield of R134, some optimum technological conditions is determined.

论文首先对R22裂解制成四氟乙烯混合原料气的裂解过程进行了讨论,自行设计和制作裂解反应装置,并确定裂解反应的最佳操作条件;然后,重点对R134的合成进行基础研究,分别从热力学和动力学的角度探讨以含四氟乙烯的R22裂解混合气为原料合成R134这一全新工艺的可能性,选择和制备加氢催化剂,根据催化过程特点建立四氟乙烯催化加氢反应的总包动力学方程,并在此基础上自行设计和制作中试合成装置,获得了以裂解混合气为原料合成R134的最佳工艺条件,为R134的工业化生产提供了必要的理论依据和实验基础。

This thesis successfully applies the Retes networking and interference technologies to the functional realization of the Fault Diagnosis module. Based on the knowledge used by expert in Fault Diagnosis, the association relationship between alarm data is analyzed and summarized, then all the association relationship was constructed as rules and stored in the knowledge base.

本文成功地把Rete网络及其推理理论应用到该故障诊断模块的功能实现中,并根据专家经验,对告警信息进行关联关系分析,总结告警之间的关联关系并将其表示成规则写入知识库中,Rete算法把这些规则编译成模式网和连接网对告警信息进行模式匹配,从而应用专家系统实现了移动网管系统故障诊断模块。

On today of the arithmetic figure for the sake of quickly school student status the management must depend on the calculator and make the school management student is data more in brief arrived the for base onning above and all kinds reason developping a student status managing the system forcing in the eyebrow I join togethering this graduate designing to develop the student status the management the system.

在数字化的今天,为了加快学校学籍治理必须依赖计算机,以及使学校对学生数据的管理更加简朴、到位,基于上述种种原因,开发一套学籍管理系统迫在眉捷,我结合本次毕业设计的题目开发了学籍管理系统。

On today of the arithmetic figure , for the sake of quickly school student status the management must depend on the calculator, and make the school management student is data more in brief, arrived the for, base onning above and all kinds reason, developping a student status managing the system forcing in the eyebrow , I join togethering this graduate designing to develop the student status the management the system.

在数字化的今天,为了加快学校学籍管理必须依靠计算机,以及使学校对教师数据的管理更加简单、到位,基于上述种种原因,开发一套教师信息管理系统迫在眉捷,我结合本次毕业设计的题目开发了教师信息管理系统。

A method for broadcasting channel information, available channel and data rate of a base station in a CDMA communication system.

在CDMA通信系统中,广播基站的信道信息、可用信道和数据速率的方法。

The kinetics model was gotten based on the alkyl mechanism, light olefins re-absorption and re-reaction. The kinetics experiment is carried out over the selected Fe-Mn-K catalyst, and the kinetics model parameters is got base on the kinetics experiment data. The parameters explain the reaction results that the carbon monoxide content is high, the methane content is the biggest of the hydrocarbon products and the olefin content is bigger than the corresponding alkenes content.

本文同时对该反应的反应机理和动力学进行了研究,以烷基机理为基础,建立了考虑烯烃再吸附和二次反应的动力学模型,并在选定的催化剂上进行了相应的动力学实验,结合动力学实验数据计算得到了相应的动力学模型参数,模型参数值解释了反应产物中CO的含量较高,以及烃类产物中CH4含量最高和烯烃含量大于相应的烷烃含量。

The fine-registered and well-labeled atlas is used as the knowledge base of an unsupervised fuzzy C-mean segmentation method, which form the automatic segmentation and labeling of the Visible Man data set.

最后,经过匹配的标记好的图谱作为预分割模板用于无导师的模糊C-均值聚类分割方法,实现了对Visible Man体数据的自动分割和标注。

Base on experimental data, studies on discharge characterisitics of inner energy dissipating tunnel with inlet shaft and horizontal vortex, were systematically carried out. The flow pattern and relevant parameters were analyzed.

本文从分析竖井进流水平旋转内消能泄水道的流态及影响因素出发,根据试验资料对其泄量特性进行了系统地分析与研究。

It introduced the development survey of passenger/vessel ferry transport, analyzed the characteristics of performance and key of design of new type passenger/vessel ferry, and on the base of having collected a vast amount of data of existing ferries, emphasized on how to determine the main dimensions at preliminary stage of design.

本文介绍了国内外客滚运输发展概况,分析了新型客滚船的性能特点和设计重点,在搜集了大量实船资料的基础上,着重讨论了初步设计阶段中小型客滚船主要要素如何确定的问题。

On a base of many fact data from Hong jiang city, this article use some scientific analysis way, provides scientific basis for analyzing the mutual relation between town and country' s structure and distribution and intension of land use; for town and country' s rational land distribution; for improving land productivity and land economic value of output; for land protection and a rational land use. The author wish to open up a path for the development of town and country.

本文以洪江市为研究区域,在大量的事实数据的基础上,运用了灰色系统法、回归分析法、经济相关法、综合分析法等科学分析手段,对该区域的城乡用地结构及布局与土地集约利用的相互关系,分析和处理好其相互制约性和促进性,为现在的城乡发展中的用地结构比例,城乡用地的合理布局、分区,土地生产率和经济产值的提高,耕地保护以及土地利用规划中土地的合理利用提供科学的依据和方法,并希望能为我国城乡发展规律开拓出一条正确、合理的道路。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。