查询词典 DCS

The invention relates to a dynamic matrix control system of high-purity distillation, which comprises distillation tower, intelligent checker, DCS system, superior host, and on-site bus, while they are connected. The control system uses tower product group as the object variable, and the reflux ratio and reboil ratio as control variable; the superior receives history temperature and pressure data from the DCS real-time database, via the predict control and dynamic matrix controller, to obtain the output values of present controller as reflux ratio and reboil ratio, then feedback said two values to DCS system, to function the distillation object. The invention can confirm the high-purity stable operation, with better dynamical control.

本发明公开了一种高纯精馏的动态矩阵控制系统和方法；系统包括：精馏塔、智能检测仪表、DCS系统、上位机和现场总线；所述精馏塔、智能检测仪表、DCS系统和上位机通过现场总线依次相连，实现信息流的上传和下达；本发明所涉及的控制系统采用塔双端产品组分为被控变量，回流比和再沸比为对应的控制变量；上位机从DCS实时数据库中获得历史的温度、压力等数据，通过推断控制环节和动态矩阵控制器环节，得到当前控制器的输出值-回流比和再沸比，再把控制器输出值返回给DCS系统，实现了对高纯精馏过程的双端产品高纯控制，对双端组分的高纯度平稳操作，具有很好的动态品质和控制效果。

Results Immature DCs were mainly retained within the cancer nests scatteredly;whereas mature DCs were confined to peritumoral areas in groups,and lymphocytes clustered around mature DCs.

结果非成熟树突状细胞绝大部分散在地位于癌巢内，而成熟树突状细胞则成群地位于癌周组织，且有淋巴细胞成簇分布于其周围。

DCs was impulsed with pure HBsAg before DCs maturation and cocultured with self-blood T lymphocyte, while DCs without pure HBsAg stimulated group, T lymphocyte group and only T lymphocyte group were prepared as control group.

体外实验中HBsAg刺激的人DCs能有效的呈递抗原并诱导HB特异性CTL的产生，能有效的抑制2.2.15细胞培养上清中HBeAg的表达。

In order for a computer to communicate directly with the Distributed Control System, this paper explains the structure of the INFI 90 type DCS made by the Baily Control Company in America in detail. By means of analyzing its inner agreement on communication, an interface between the INFI 90 type DCS and the computer is designed, which includes the software and hardware.

为了实现微机直接与集散控制系统间通信，详细分析了美国贝利控制公司研制的INFI－90集散控制系统的结构组成，通过剖析该系统的内部通信协议约定，设计了微机与INFI－90集散系统通信接口，它包括硬件和软件两部分，其中软件由Borland C＋＋语言编程实现。

After incubation with tumor cytolysis antigen ,the DCs can activate the CTLs to become tumor specialized CTLs, which had shown significantly inhibition on growth of YTMLC tumor cell line. Conclusion: The precursors in human cord blood can be induced to functional DCs which activate T lymphocyte to become tumor specialized CTLs.

经细胞因子组合可以从脐血中诱导出DCs，并可诱导肿瘤特异性CTLs的产生而发挥抗肿瘤作用，为进一步开展DCs的基础及临床应用研究打下了基础。

In order to apply DCS better in industry, it is very necessary to understand and master the choose,design and application of DCS.

为了更好的应用DCS，了解和掌握DCS的选择、设计和应用是十分必要的。

In DCS, configuration is used to accomplish the on-line calculation of main stress of the orifice of the drums central downcomer. In MIS, the client/server structure based on the database is adopted. The program in server pretreats the data from DCS and sends them to the database, while the programs in client accomplished the final treatment and displays the result

在DCS侧，通过组态的方法，在不增加新测点的前提下实现了汽包集中下降管管孔处主应力的在线计算；在MIS侧，采用基于数据库的客户机/服务器结构，服务器端程序对从DCS系统来的数据进行初步的处理并存储在ORACLE数据库中，客户机端程序完成数据的最终处理及结果的显示

As a subpopulation of DCs, myeloid DCs play a pivotal role in adaptive immunity by activating naive T cells.

作为体内抗原提呈能力最强的APCs，DC在免疫调控方面发挥着至关重要的作用。

The results show that the angular distribution of the total differential cross section at zero degree increases and the position of oscillation minimum of the same order gradually shift towards small scattering angle along with the increase of the incident isotope He atom mass at identical collision energy. And crossing angle between the elastic and total inelastic DCS gradually decreases and the total inelastic DCS gradually increases.

结果表明：在相同碰撞能量时，随着同位素氦原子质量的增加，总微分截面在0°时的角分布逐渐增大，同一级衍射振荡极小值位置逐渐向小散射角方向移动；弹性与总非弹性截面交界角逐渐减小，总非弹性截面逐渐增加。

These antennas can cover GSM900/DCS/PCS/UMTS operation. In the chapter 2, the antenna is designed based on the concept of monopole antenna. Furthermore, the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching. In addition, to raise distance between radiation plane and ground will avoid capacitative effect effectually. In the chapter 3, the antenna is designed based on the concept of planar inverted-F antenna. Furthermore, that the antenna structure have two radiant paths and coupled each other at tail end to do impedance matching is similar to chapter 2. But there is a difference in them. We can choose the short position to change input impedance at this structure. In the chapter 4, the antenna is designed based on the concept of planar inverted-F antenna which takes coupled-fed. It will produce the first mode and high-order mode near the frequency, 900MHz. The feature of this type is to reduce the volume effectually. This antenna can not only cover GSM900/DCS/PCS/UMTS operation but maintain good radiation efficiency. Finally, we will compare three antennas, and develop procedure with industrial view, and propose the prospect of the GSM/GPRS antenna in PND, as a conclusion.

在第二章中，我们使用单极天线设计概念，使用双路径架构并於末端耦合来对天线阻抗做匹配，产生涵盖GSM900/DCS/PCS/UMTS四频操作频带，并提高与接地面的辐射高度，以避免电容效应，使天线具有良好的辐射特性；在第三章中，使用倒F形天线设计概念，使用双路径架构於末端耦合，并於辐射臂上采取适当接地点电感效应作输入阻抗匹配，达成涵盖GSM900/DCS/PCS/UMTS系统的四个操作频带；在第四章中，采用倒F形架构并使用耦合馈入方式，使得长辐射金属臂在低频900 MHz附近产生共振，产生低频基频模态及高阶模态，以达成宽频及频宽涵盖GSM900/DCS/PCS/UMTS频带操作，并有效缩减使用体积；最后，分别比较此三种架构的优缺点，再加以业界角度来思考，研发产品天线的流程及思考方向，以及天线应用於可携式导航装置中未来的展望作为本论文的总结。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。