查询词典 controlled system

A self-developed multi-functional brownout protector (MD WRJB-45/380) controlled by microcomputer. The product is a microcomputer controlled, and bi-closed-loop current feedback system.

介绍一种自行研制开发的WRJB-45/380型微电脑控制电机多功能节电保护器，该装置是一个微电脑控制的相位、电流双闭环反馈系统。

Then analyzed has compared the contravariant controller control strategy, in established in the SPWM inversion linearization model foundation to analyze the necessity which double-circle controlled, and in controlled in the link to introduce the PID adjustment, enhanced the control the dynamic response ability and the system stability, enhanced the power source the load compatibility and the output stability.

接着分析比较了逆变控制器的控制策略，在建立了SPWM逆变器的线性化模型基础上分析了双环控制的必要性，并在控制环节中引入PID调节，来提高控制的动态响应能力和系统的稳定性，以提高逆变电源的负载适应性和输出的稳定性。

In a study appearing online February 8, 2007 in advance of publication in the March 2007 issue of the Journal of Clinical Investigation, Gallo and his colleagues look at how the innate immune system is controlled in the skin, and find that genes controlled by active vitamin D3 play an essential role in the process.

在一项研究中出现的在线2007年2月8日提前出版的，在2007年3月发行的杂志上的临床调查，盖和他的同事们研究如何在先天免疫系统是控制在皮肤上，并发现基因控制的活性维生素回复起着至关重要的作用，这一进程。

Developed a computer controlled energy utilization ratio measuring system with which every part's energy consumption in a EDM system could be tested at the same time, including general input, pulse generator and spark gap, dielectric system and servo system.

该系统可以同时测试一个EDM系统中各部分的电能消耗，包括总的输入电能，消耗在脉冲电源和火花间隙中的电能，以及工作液循环系统，伺服系统等部分消耗的电能。

Who communicates by letter, business synthesizing service as a telecommunication , data and information network to be in motion and do business, advantage , broad customer resource and fine cooperation concern the have distinctive telecommunication background , tremendous technology and fund, The company is engaged in synthetical telecommunication serving , synthesizing information service , broadband access , computer network information system integration , intelligent building structure-rization synthetical arrangement of wire system , building world automation navar , data telephone programme-controlled telephone switching boards system , video frequency convention system and so on mainly; Be in the data communication field , the new net of halo especially .

北京光环新网数字技术有限公司是北京通信光环电信集团下属的一家股份制公司，作为一个电信、数据和信息网络综合服务运营商，具有独特的电信背景、雄厚的技术和资金优势、广泛的客户资源和良好的合作关系，公司主要从事综合电信服务、综合信息服务、宽带接入、计算机网络信息系统集成、智能大厦结构化综合布线系统、楼宇自动化控制系统、数据电话程控交换机系统、视频会议系统等；尤其在数据通讯领域，光环新网公司拥有其它公司无法比拟的综合技术实力和线路网络资源优势。

Aiming at realizing embeddedARM control system on musical fountain, the design of software and hardware of this system was completed by Linux operating system with the frame of SAMSUNGs S3C2440 microprocessor. After extracting the sounds volume and tonality by dealing with the music signal in advance, the musical fountains spraying height, light and shape of water were controlled efficiently by embedded system.

为实现基于嵌入式ARM的音乐喷泉控制系统，采用三星公司以S3C2440微处理器为核心的架构，以Linux操作系统为平台，完成了音乐喷泉控制系统的软、硬件设计，并通过对音乐信号的预处理提取声音中的音量和音调，利用嵌入式系统有效地控制了音乐喷泉的喷水高度、灯光和水型变换。

The principle of laser diode digital temperature control system is introduced. Aiming at the characteristics of controlled object, the mathematical model of the system is constructed and analyzed. By adopting the method of dual-closed-loop cascade control system, the structure of system hardware is designed and the implementing measure of software is introduced.

介绍了半导体激光器数字温度控制系统的工作原理，针对被控对象的特点，建立和分析了系统的数学模型，并采用双闭环串级调节系统结构的方法，设计了系统的硬件结构，介绍了软件实现方法。

Through indoor and outdoor experiments, it was proved that the designed 3-D intelligent measurement system for field landscape and Laser leveling aided decision-making support system can work stably. The 3-D intelligent measurement system can achieve an accuracy of 2cm in attitude measurement. The measurement efficiency is two times higher than that of using measure pole of imported equipments. The measurement system developed can provide basic decision-making support for laser controlled field leveling.

通过室内和室外试验表明：自主设计研发的智能三维地形测量系统和激光平地辅助决策支持系统可以正常稳定工作；智能三维地形测量系统高程测量的误差小于2cm，工作效率同比同类设备高2倍多；激光平地辅助决策支持系统能为激光平地作业提供必要的决策支持。

The interfacial chemistry, synergistic effects and interfacial kinetics of thesynergistic extraction system D_2EHPA-MPA-Fe~(3+) have been studied, where MPA is amono-alkyl phosphate extraction with long carbon chain. D_2EHPA in the mixed extractionsystem strongly exhibits the effect on the thermodynamics of micella formation and interfaceproperties of MPA. Some thermodynamic parameters of micella formation were obtained.The interfacial adsorption behaviour of D_2EHPA is opposite to that of MPA. Theemulsification for single MPA and the mixed system was discussed. The synergistic effectswere found in this mixed extraction system. It is proved that the process of Fe~(3+) extractionfor non-mixed extraction system is controlled by chemical reaction, the controlling reactionoccurs at the interface, and the reaction rate equation is obtained.

本文研究了协同萃取体系D_2EHPA—MPA—Fe~(3+的胶团形成热力学、界面特性、协萃效应和界面动力学(动力学控制机制和反应速率方程)研究发现，混合萃取体系中的D_2EHPA强烈地影响MPA的胶团形成热力学和界面吸附行为，得到了胶团生成常数、胶团形成自由能和临界胶团浓度的热力学参数D_2EHPA和MPA具有相反的界面吸附行为研究发现D_2EHPA—MPA混合萃取剂体系对Fe~(3+)产生了协萃效应动力学和界面化学的研究结果还证实了非胶束混合萃取体系的Fe~(3+)的萃取过程是受化学反应控制的，控制反应发生在界面上

I used the homemade ECDL to measure the 2S-3D two photon transition spectrum of Helium , the advantages are that the expense of homemade ECDL is cheap and have good output power. At the same time, I used the electronic part can be got in the market to manufacture a pulse generator in the experiment, the pulse generator can control the output frequency, the pulse width, the relative phase and also can simultaneously control four sets of systems or instruments need the TTL pulse control. The advantage is that the cost of the pulse generator is cheap and the pulse generator is stable. To isolate the magnetic field I used the magnetic foil to helium cell. I also built a gas discharge system, the switch sequence of this system can be controlled by the pulse generator. Finally I built a detecting system can measure the helium energy state. It is cheap and can be combined with the comb laser system in my laboratory.

本实验是利用一台自制的外腔雷射系统来量测2S-3D的氦原子双光子跃迁，其优点在於自制的外腔雷射之费用非常便宜，也有不错的输出功率，同时在实验中我利用市售的电子零件制作了一台脉冲产生器，可控制输出的频率、脉冲宽度以及相对的相位，且可同时控制四套需要TTL脉冲控制的系统或仪器，优点除了便宜之外，也非常稳定；为了隔绝磁场，利用了磁场隔绝金属箔，我也在实验室中建立了一组气体放电系统，其系统可以用脉冲产生器来控制开关时序，最后，我建造了一个氦原子能阶的量测系统，而且费用低廉，可与本实验室的另外一门研究光梳雷射系统做结合。

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。