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It becomes more difficult to manage, integrate and share the control system real-time data when we set up the industrial real-time database because of complicated affair between every department and isomeric character of the system. A three-level-structure model and the method to establish database is provided based on CORBA criterion with its character of being regardless of programming languages, hardware platform and network protocol . A universal real-time database faces multi-system is also set up by learning the distributed criterion, it can realize the request broker , and the application software can visit the database pellucidly ; Thus the power station simulation model can be linked with the control system such as infi90 , ovation and be made use of the control object , a closed simulation and control experiment system is set up. Further more we can build an integrate automatic experiment platform from the simulation object of power plant to the process control and the to SIS. Li Ming(Control Theory and Control Engineering)Directed by associate prof. Lin Yongjun
在创建工控领域实时数据库时,企业各部门间的复杂事务及内部异构性给实时数据的管理、集成和共享带来了一定的困难,根据CORBA规范具有语言无关性、平台无关性和网络协议无关性的特点提出基于分布式计算规范CORBA的三层体系结构模型及建立与维护实时数据库的方法和途径;通过CORBA规范建立面向多个分散控制系统的通用实时数据库,实现数据访问代理,使应用软件可以透明地对实时数据库进行访问、存取、管理;将Infi90、Ovation分散控制系统与火电厂仿真机模型进行有效的互连,以全物理过程仿真数学模型为对象,构建了闭环控制仿真实验研究系统,实现数据的高效连通及管理;进而通过基于CORBA的实时数据库构建一个从火电厂仿真机对象到过程控制设备再到SIS系统的综合自动化试验平台。
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Base on above studies, some conclusions were obtained as follows:(1) ore-forming background of the studied ferromanganese crusts are mainly controlled by intensity of Antarctic Bottom Waters and variations of material source;(2) it is confirmed that the ferromanganese crusts are mainly hydrogenetic and their composition are affected by volcanic and continental material simultaneously; there are no obvious phosphatization reconstruction and element reaction occurred in them, so they have important paleoceanological significance;(3) from researches on element occurrence modes in the new-type ferromanganese crusts and the lying sediments, it is proposed that there is no great biological affection on the crusts formation and their composition mainly came from the adsorptive action of the ferromanganese oxides in them;(4) two major types of ore-controlling factors are identified through compilation of ore-controlling factors, which are geological and oceanic factors;(5) considering the long-term variation trends of the crusts composition, combing the U-series and 10Be isotope dating results, it is proposed that the ore-forming processes of ferromanganese crusts in the studied areas can be divided into three major stages (5.6~2.8 Ma, 2.8~2.7 Ma and since 2.7 Ma), and then the activities of AABW since the Late Miocene, changes of input flux coming from volcanic and continental material are confirmed.
通过研究,得出如下结论:(1)研究区铁锰结壳的成矿背景主要受控于南极底流强弱及物源供给的变化;(2)证实铁锰结壳主要为水成成因,同时其物质组成也受一定程度的火山和陆源物质的影响;结壳自形成以来没有遭受到明显的磷酸盐化等成岩后期改造和元素再迁移,具有重要的古海洋学意义;(3)通过新型铁锰结壳及下伏沉积物元素赋存状态的研究,认为生物作用对研究区结壳的形成并没有很大的直接影响,其物质成分主要来自于结壳中铁锰氧化物的吸附作用;(4)在控矿要素的研究中,归纳出了地质与海洋两大类结壳控矿要素;(5)根据结壳成分长周期变化趋势,结合铀系和10Be测年结果,将研究区结壳的形成过程划分为三个主要阶段(5.6~2.8 Ma,2.8~2.7 Ma和2.7 Ma以来),并确定了晚中新世以来研究区南极底流的活动情况、火山和大陆来源物质输入量的变化。
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Then, the experiment that edelfosine inhibited the phosphatization of Spm1 was carried out in order to elucidate whether edelfosine affect on the phosphatization of Spm1 induced via Mid2 and inhibited via Pmp1.(1)、On the inhibition experiment of parallel growth of S. pombe wild-type cells, spm1 mutants, pmp1 mutants, mid2 mutants and relevant retransform strains, the spm1 mutants grew well treated with 5.0μM and 10.0μM edelfosine for 24 h; the growth ratio of spm1 mutants had a statistic significance in between the cells previously mentioned and the S.
(1)、通过野生型粟酒裂殖酵母和胞质分裂突变体spm1Δ、pmp1Δ、mid2Δ及其再转化株对依地福新的平行生长抵抗试验,进一步确定依地福新对spm1、pmp1、mid2基因的影响;(2)、应用依地福新对Spm1磷酸化的影响试验,阐明依地福新是否通过影响Mid2蛋白和Pmp1蛋白的表达而影响Spm1蛋白的磷酸化。
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The air in the fermentation room deflated to the inner plafond by the air blower and use radiator to heat, and blow the air into air deflector again. Repeat this process again and again until to achieve the required temperature.
通过风机将醒发房内醒发空间的空气抽到夹层天花内,然后经过散热器将空气加热,再将加热的空气吹到导风槽,通过导风槽出风口将热风送到醒发空间,这样不断循环加热,使温度达到所需要的醒发温度。
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This method is to lay the polarizing code of the different polarizing eyepiece angle in the different direction. Then, each direction's optical fiber was coupled into a bunch of optical fibers. After the focusing collimation set of lenses injection solution leaning path of rays, the laser incidence direction was obtained through the judgment circuit analysis.
该方法是通过在不同方向上放置不同起偏角的偏振片编码,再将各个方向的光纤耦合成一束,经准直透镜组射入解偏光路中,通过判断电路分析得到激光入射方向。
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With the analysis of the situation in the management of risk operation, the dissection of an ecomomic case ( delfalcation comitted by a bank member) and the references from advanced counterparts, the paper comes up with some countermeasures to prevent and control the risk operation: to perfect the management organization, to strengthen the inside-control construction, to reselect the business flow; to enhance the controling of the risk operation, to innovate the supervising methods, to improve the management, to intensify all-staff involvement and to construct a risk culture.
本文通过对江苏AB银行操作风险管理现状的分析,通过对一个内部员工挪用资金案例的解剖和先进同行风险管理经验的借鉴,得出防范和控制操作风险的对策。完善治理结构,强化内控建设;再选业务流程,加强风险控制;创新监管方法,提升管理水平;强化全员参与,培养风险文化。
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It can complete the measurement of AC/DC voltage.The running process: it enlarges the digital to tallies chip through Amplifier. It holds the sampling digitalpass to convenience transforming for the chip through sample and hold Circuit.
运行过程是:将采样的模拟量通过放大电路放大到和模数转换芯片相适应的量,通过采样保持电路将芯片采样的量保持住后送入模数转换器转换成数字量,再由单片机进行控制计算。
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It can complete the measurement of AC/DC voltage. The running process: it enlarges the digital to tallies chip through Amplifier. It holds the sampling digital pass to convenience transforming for the chip through sample and hold Circuit.
运行过程是:将采样的模拟量通过放大电路放大到和模数转换芯片相适应的量,通过采样保持电路将芯片采样的量保持住后送入模数转换器转换成数字量,再由单片机进行控制计算。
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The left singular vector of the projection has been tracked by the projection approximation subspace tracking algorithm. Then the modal parameters are obtained by least square method. At last an experiment is made using a cantilever beam to prove the efficiency and stability of the method by changing the frequency band of the exciting signal.
通过子空间跟踪算法,不断跟踪计算投影的左奇异值向量,再利用最小二乘法求出系统的模态参数,最后用悬臂梁作为实验模型,通过不断改变系统激励的频带范围,验证方法的有效性及稳定性。
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Heating billet temperature cannot be detected in the hearth. Only by detecting temperatures of the stove side or hearth with estimation from mere experience could lead to great error on the measurement of billet temperature and affect the quality of post-processing accordingly; Overheating also exists in the heating process, and the quality of product is sway by overheating oxidation. Though infrared thermoscope is used to detect the temperature of billet when it is taken out of the stove, precision is still affected because of the oxide layer on the surface.
燃气与空气的配气量比例,一般通过人工调节,未实现按加热条件自动动态调节;无法在炉膛内检测被加热钢材的温度,只能通过检测炉壁或炉膛温度,再凭经验估计钢材温度,结果是钢板温度误差大,影响后续加工质量;钢材加热存在表面过烧现象,有时表面烧损、氧化严重,影响产品质量;尽管钢材出炉时,可用红外线测温仪来进行钢材表面温度检测,但因钢材表面存在氧化层,也影响钢材温度检测精度。
- 推荐网络例句
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It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.
从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。
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The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.
集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐
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The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.
血精的原因很,以良性病变为主。