查询词典 high power

a kind of design project of multifunction electric power quality gauged instrument based on virtual instrument is put forward in this article.this system integrates virtual instrument programming and power electronics together,to realize diverse signals of current electric power quality field allin one.the integrated signal generator unit which carries out the collection of high speed digital data,d/ a conversion and analog output in four channels,unsymmetrical synchro control fifo etc.by fpga are introduced,the flow of electric power system various signal which generates by vc programming is elaborated,and the structural design of signal amplification unit is analysed.the experiment text result shows that this gauged instrument has attained current advanced high grade of accuracy and it will accelerate the steps of electric power quality calibration because of its accuracy and versatility.

摘 要：提出一种基于虚拟仪器技术的多功能电能质量标定仪的设计方案，采用虚拟仪器编程技术和电力电子技术相结合实现集目前电能质量领域的多样信号于一体。介绍采用fpga实现高速数字量采集、d/a转换及4通道模拟量输出、非对称同步控制fifo等的集成信号发生单元，阐述利用vc编程实现的电力系统多样信号的产生流程，分析信号放大单元的结构设计。实验测试结果表明该标定仪达到目前先进的高精度等级，由于其准确性和多功能性将加快电能质量标定的步伐。

In the present paper,the goal applies in the development in the mixed style battery cocurrent of motor driver design in the electrically operated bicycle,the use lead-acid battery and the LiFePO4 battery takes the main actuation power to originate,the iron phosphate lithium battery has the life to be long,the electric discharge power is big and the transformation power suits the high electric current product good the characteristic;The lead-acid battery is in a market condition the quite mature battery product has the high security in the thermostable characteristic,and designs a driving circuit to actuate the cocurrent to have brushes the motor to lead the bicycle advance,comes in the enfilade non-ascent road section use LiFePO4 battery as the actuation electric power to originate,in had the ascent road section use lead-acid battery to come as the actuation electric power to originate, has promoted bicycle's endurance and reduces accumulator cell's energy loss.

本论文中，目的在研制应用於混合式电池於电动自行车之直流马达驱动器设计，使用铅酸电池与磷酸铁锂电池来作为主要驱动动力来源，磷酸铁锂电池具有寿命长、放电功率大及转换功率佳适合高电流产品的特点；铅酸电池为一市面上相当成熟的电池产品具有高度的安全性於耐高温的特性，并设计一驱动电路来驱动直流有刷马达来带动自行车前进，於直路无斜度路段使用磷酸铁锂电池来作为驱动电力来源，於有斜度路段使用铅酸电池来作为驱动电力来源，提升了自行车的续航力和降低蓄电池的能量损耗。

Owing to its small volume, light weight, high efficiency, succinct circuitry, high reliability and great capability of self-equalizing output loads in different circuitries, the Fly-back Converter becomes the optimally topological form of designing auxiliary power supply of high frequency switching power and driving power supply of power switching.

由于反激式变换器不但具有体积小、重量轻、效率高、线路简洁、可靠性高等优点，而且还具有较强的自动均衡各路输出负载的能力，目前反激式变换器的电路拓扑形式已成为人们设计高频开关电源的辅助电源以及设计各种功率开关驱动电源的首选。

The second part mostly analyzes the legal status of high school and the suability of higher education administrative power. During this part, the writer proposes that we should take the experiences of the France and Germany and give high school the status of artificial people of state officer. The third part introduces during which situation judicial power can interfere with higher education administrative power. Then this part sums up four aspects of high school educational administrative power which can be in the scope of judicial review of administrative actions. The fourth part mainly researches the principle during the trial of higher education administrative cases and claim that bring the basic principles of administrative law into hi...

在这一部分，笔者在借鉴法国和德国高校法律地位的基础上提出了赋予我国高校"公务法人"地位的观点，并进行了论证；第三部分首先研究了确定高等教育行政诉讼受案范围应考虑的因素，然后归纳了高校教育行政权的四个方面作为高等教育行政诉讼的受案范围；第四部分主要研究了高等教育行政案件的审理原则，提出了将行政法基本原则引入高等教育行政诉讼的主张，并在理论上进行了详细的论证；第五部分论证了高校、教育行政机关的被告地位和高校学生、高考考生的原告地位；第六部分主要从特征和分配两个角度分析了高等教育行政诉讼的举证责任。

The main content of this dissertation includes: 1. Research on the theory of ultrasonic power supply, introduce its development process. On the basis of these, fix on the scheme of medical ultrasonic low-power supply. 2. According to the principle of modularized design, divide medical ultrasonic low-power supply into four parts. They are power amplify circuit, power control circuit, frequency automatic tracking circuit and matching circuit. Separately research on their theories and design their circuits and necessary programs, especially, effectively resolve the problem tracking the supersonic vibration system with a narrow syntony frequency bandwidth and a high swing. 3. The matching experiments gain good result, and prove that medical ultrasonic low-power supply is entirely up to the mustard on intellectualization, wide band of working frequency, steady output and high efficiency.

本文工作的主要内容包括： 1、研究了超声功率电源的原理，并回顾了它的发展过程，在此基础之上确定本文医用小功率超声电源的设计方案； 2、按照模块化的设计原则，将医用小功率超声电源的设计分解为功率放大电路、功率控制电路、频率自动跟踪电路和匹配电路等四个部分，分别研究了各部分的原理，在此基础之上进行了具体的电路设计和程序设计，尤其是有效地解决了对谐振频率带宽窄振幅高的超声振动系统的频率跟踪问题； 3、通过与超声振动系统的各项配合实验，取得了很好的实验结果，验证了医用小功率超声电源完全满足智能化、工作频带宽、输出功率稳定、输出效率高的设计要求。

The agitation power consumptions in boiling systems decrease uniformly with the increase of agitation speed, whereas the relative power demand (RPD-the ratio of agitation power input of HEDT for gassed system to that for ungassed system and under the same agitation speed) can maintain at a high level for high gas loadings even when the impeller is operating with a high impeller tip speed. The gas hold-up in the boiling system is much lower than that in the cold gassed system, and the gas hold-up in boiling system increases at first and then decreases with the increase of the agitation power consumption per liquid mass P(subscript m. It implies that the boiling three-phase system has a maximum gas hold-up point. The changes of nucleation site of vapour bubble and the character of suspension of the solid particles with the rotational speed of the impeller are responsible for those behaviors mentioned.

在沸腾条件下，搅拌功率消耗随着搅拌转速的增加有所下降，但HEDT桨具有较高的载气能力，即使在高叶端线速度下，相对功率消耗仍能保持在较高的水平；沸腾体系的气含率随单位质量流体输入功率的增加表现出先增后减的规律，即存在气含率的极大值，蒸汽成核位置和固体颗粒悬浮特性随搅拌功率增加而改变是造成上述行为的主要原因；沸腾体系中的气含率远远低于常温通空气体系。

Datacolor company's main production for electricity, chemicals, petroleum, metallurgy, shipbuilding, railways, nuclear power, military and other basic industrial sector control system used special cables, including fire-resistant fire-retardant series, cross-linked column, high temperature series resistance, low temperature series, radiation-resistant series, waterproof series, Low Smoke low halogen series, low smoke zero halogen series more than a dozen major categories, such as nuclear power stations with cables, military cables, towing cables, specifically to replace imported cables, waterproof underwater cables, electronic computer shielded cable, control cables, low smoke zero halogen cable category, compensation wire, cable, high-temperature fire cable, high-frequency heating and hot with cable, RF cable, high flexible cables, the security cable, instrument signal cables, marine cables, Oilfield cables, signal cables, communication cables, sensor cables, control cables, power cables, thermocouple, thermal resistance and so on.

德塔公司主营生产用于电力、化工、石油、冶金、船舶、铁路、核电、军工等基础工业部门控制系统中所采用的特种电缆，包括耐火阻燃系列、交联系列、耐高温系列、耐低温系列、耐辐射系列、防水系列、低烟低卤系列、低烟无卤系列等十几个大类的核电站用电缆、军工电缆、拖曳电缆、专门替代进口电缆、水下防水电缆、电子计算机屏蔽电缆、控制电缆、低烟无卤类电缆、补偿导线、电缆、高温防火电缆、高频加热和伴热电缆、射频电缆、高柔性电缆、本安电缆、仪表信号电缆、船用电缆、油田电缆、信号电缆、通讯电缆、传感器电缆、程控电缆、电力电缆、热电偶、热电阻等。

In order to improve the stability and reliability of the models, especially in the marine platform drilling rig in order to meet the high standards and strict power requirements, CPC Jinan Diesel power demands in accordance with domestic oil market situation and the company markets products in the oil field use, decided to 4012 Long-stroke diesel engine is fully optimized and updated, and comprehensively improve the models of economy, adaptability, especially in reliability to achieve new breakthroughs to make it into a completely independent intellectual property rights, high reliability, power, good , fuel consumption is low, high degree of automation of the diesel engine, making it the leading, world-class level, can completely replace the current oil market, the corresponding power of China's imports of aircraft-grade new model.

为了提高该机型的稳定性和可靠性，特别是为了满足海洋平台对钻机动力的高标准严要求，中油济柴根据国内石油市场动力需求现状和公司产品在油田市场的使用情况，决定对4012型长冲程柴油机进行全面优化和更新，全面提高该机型的经济性、适应性，尤其在可靠性方面实现新的突破，使其成为具有完全自主知识产权的、可靠性高、动力性好、油耗低、自动化程度高的柴油机，使其成为国内领先、具备世界一流水平、可完全替代目前我国油田市场上相应功率档次进口机的新机型。

Basing on TI Corporation's DSP chips TMS320LF2407A as high-voltage protection system CPU in this article, AC analog which comes from high voltage power grid is converted to digital value which DSP can process by 14-bit A/D converter MAX125, monitoring the entire status of the high-voltage power grid in real-time, tripping off by controlling external relay quickly when abnormal operation happened, turn off the power grid to protect the power grid and other electrical equipment.

本文是基于TI公司的TMS320LF2407A型DSP芯片作为高压电继电保护系统的中央处理器。通过MAX125的14位A/D转换器采集高压电网中交流模拟量来转换为供DSP处理的数字量，从而进行数据分析处理，对整个高压电网的运行状况进行实时监控，当遇到不良运转时控制外部继电器迅速跳闸，切断电网，从而保护整个电网及其他用电设备。

Basing on TI Corporation's DSP chips TMS320LF2407A as high-voltage protection system CPU in this article, AC analog which comes from high voltage power grid is converted to digital value which DSP can process by 14-bit A/D converter MAX125, monitoring the entire status of the high-voltage power grid in real-time, tripping off by controlling external relay quickly when abnormal operation happened, turn off the power grid to protect the power grid and other electrical equipment.

本文是基于TI公司的TMS320LF2407A型DSP芯片作为高压电继电保护系统的中央处理器。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。