过程控制

In the design part of the PLC control, the paper has explained the design process of the PLC I/O hookup, provided the choice result of the PLC and the PLC I/O elements, and has explained the design process of the PLC user program in detail, which includes the exposition to the design process of the public program, manual program, autoloading program signal showing and trouble alarm program.

在PLC控制的设计部分中，阐述了PLC I/O接线图的设计过程，给出PLC及其输入/输出元件的选择结果，详细地阐述了PLC用户程序的设计过程，其中包括对公用程序、手动程序、自动程序、信号显示与故障报警程序的设计过程的阐述。

Much research has focussed on the following fields, including novel bioreactor design, culture process design, process monitoring and control, and so on, but little attention has been paid on the research of a single cell system although the single cell is the base of the bioreaction process.

大规模细胞培养中的宏观反应过程是以单个细胞为基础的，为了能够深入地了解细胞培养过程，更好地控制和优化这一过程，本文对单细胞的生长、代谢和模拟进行了研究，为动物细胞大规模培养技术的发展提供一些理论基础和实验数据。

In bioreaction engineering teaching,we put emphasis on theoretical treatment,stressing the creation and cultivation of scientific mode of thinking.The study enthusiasm and desire to participate of students were improved by using interactive teaching.Some numerical methods were supplemented to eliminate the fear of students to some complicated mathematical problems.

生化反应工程是生物工程专业的主干课，是以生化反应动力学为基础，综合运用传递过程原理、设备工程学、过程动态学及最优化原理等化学工程学的方法，进行生化反应过程的工程分析与开发，以及生化反应器设计、放大、操作和控制的一门学科[。1]因此，生化反应工程是化学反应工程的一个分支，是当前反应工程研究的前沿领域。

Based on the above research, the article discusses the process using ASP and ADO technique to manage and update database; studies the setting of purview to assure the security of system; discusses the function of layercontrol, eagle-eye navigation, search of information and etc.; discusses the function of statistic and analysis by the process doing the caky statistic chart of roadbed disease; analyzes the doing of distributing special map of disease and engineering with the character of rail-track engineering GIS.

在以上总体研究的基础上，讨论了利用ASP和ADO技术管理和更新远程铁路工务数据库的实现过程；为了保证系统使用的安全性，研究了对用户使用权限的设置；讨论了图层控制、鹰眼导航等地图操作功能以及信息查询功能的实现过程；以路基病害分析的饼状统计图的制作过程为例讨论了统计分析的功能；针对铁路工务地理信息系统的特点，分析了病害和维修工程分布专题图的制作。

In the course of establishing standard operating procedure, The temperature, time , the feasibility without decorticating and efficiency were investigated when alliinase was deactivated used a dry heating apparatus in tunnel type, but the efficiency can be achieved less than 70%, need to be improved; The reformative cribriform plate has been proved to be good in practice result in pulping enzyme-deactivated garlic without dehulling; The extraction efficiency achieved more than 90% when volumic ratio of 20% alcohol and water is 3 I 1 and 2:1 was adopted to extract alliin two times respectively; During exact filtration, the ratio of diatomite in precoating and filtration was 3% and 1% respectively, the losses of alliin adsorbed by diatomite in extraction solution were not remarkable. In the stage of alliin isolation by ion exchange resin, three simple and sensitive detected measures were successfully adopted to control the whole process; the efficiency of alliin isolation was similar to laboratory results; The alliin yield was over 50% in acidic fractions and the purity quotient of alliin achieved above 50% after drying; Furthermore, the phenomenon was found that losses of alliin were seriously affected by the temperature and time periods in concentration.

在制定中试生产标准操作规程中，考察了隧道式干热烘干机杀酶的温度、时间和效率，干热灭酶效率只能达到70%，待改进；改良的筛板使带皮打浆效果良好，证明非脱皮熟蒜打浆的可行性，减少了工序，降低了成本；提取过程中，20%酒精分别1∶3和1∶2提取2次，效率达90%以上；硅藻土板框过滤时，探索了精滤过程中提取液中预涂和过滤时硅藻土的比例分别为3%和1%，并考察硅藻土对蒜氨酸的吸附损失，滤液澄明度良好，蒜氨酸损失很少；在树脂吸附分离阶段，采用三种简便灵敏检测手段控制生产过程，分离蒜氨酸的效果与实验室一致，酸性流分中蒜氨酸收率可达50%以上，干燥后蒜氨酸纯度达50%以上；试验发现浓缩蒜氨酸洗脱液时温度和浓缩时间对蒜氨酸损失的具有很大影响。

These concrete worksare the following:1, a new heterogonous SHS model had been proposed, which first included all the relativematerials characters, such as reactants particle sizes, changeable heat-conductivity and massdiffusion during SHS and so on, and its chemical reaction characters, initial combustion status.This new model made a more precise prediction about the SHS combustion way and itsTechnological characters possible.2, with the heterogonous SHS model, lots of combustion way had been imitated by changesystems relative factors and the rule of the combustion way change had also been studied,chemical reaction in these systems was controlled by a single mechanism.

在该模型中，首次将体系的微观不均匀特性、体系的基本物性及燃烧过程中的化学反应机理与整体燃烧动力学行为联系在一起，从而为更加准确地预测和控制SHS体系的燃烧行为，优化SHS的工艺过程奠定了理论基础。2、采用非均质燃烧模型，通过对相关参数的改变，模拟SHS燃烧过程中的各种燃烧行为，并研究了燃烧行为变化的规律。

The homeotic gene not only plays a role in the tegulation of cell ar- rangement in plant s organ, but also is the base of the floral meristem identity, inflores- cence meristem identity and floral organ identity.

植物由营养状态转入生殖状态是发育过程中的重要一步，其转变过程受遗传固子及环境的双重控制，光周期与温度是影响开花诱导的主要环境固子，而植物的同源异型基因参与植物器官内细胞排列方式形成的调拉过程，是拉制花分生组织特异性、花序分生组织特异性和花器官特异性的基础。

The boundary condition of the isochoric combustion process can be precisely controlled. And the disadvantageous influence on the isochoric combustion of the engine is avoided. Therefore, the combustion process and the factors of the influence on it can be clearly found.

可以实现对定容燃烧过程边界条件精确控制，剔除点燃式发动机定容加热过程中众多杂乱影响因素，从而清晰地反映出燃烧过程及其影响因素的作用。

To find out the mechanism and controlling factors of the original lentoid sand reservoir,its oil-trapping process is numerically simulated on one dimensional condition based on the theory of two-phase fluid flow in compactable porous media,taking into account of its various related processes and parameters.

为了了解原生透镜状砂岩油藏的成藏过程和控制因素，基于变形多孔介质两相流动的基本原理，综合考虑地层在沉降过程中温度和压力的变化、砂岩体和围岩物性的变化、石油的生成以及岩石中孔隙流体物性变化等情况，应用数值方法模拟这类油藏在一维条件下成藏的整个过程。

Apply to the tobacco processing course, can control and pursue to analyse and find out the factor that influence the quality of cigarettes to unusually fluctuate from it to the processing course in online production , thus can see the quality of the course products ocularly.

应用于烟草加工过程中，可对在线生产中的加工过程进行控制图分析并从中找出影响卷烟质量异常波动的因素，从而能够直观地看到过程产品的质量。

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。