电磁

On the basis of different behaviors of alternative electromagnetic field for induction and electromagnetic shaping, the process of dual frequency electromagnetic shaping of molten metal was firstly presented.

从固态金属感应加热熔化和液态金属电磁成形两个角度出发，讨论了金属熔体双频电磁成形中的频率选择，物理量的分布以及两种双频电磁成形的试验过程。

Models for the electromagnetic interaction between the target and trunks or between the trunks and trunks are developed, and these models are used to derive the coherent fields scattered by the target and fractal forest. Then, the polarization angular correlation function is calculated by using azimuthal angular averaging, and used to detection target buried in forest.

本文用L系统对森林环境进行了理论建模；研究了有限长分层介质圆柱的树干散射模型；分析了倾斜粗糙地面上树干及分形树的电磁散射特性；讨论了环境对确定目标电磁散射特性的影响；研究了环境与隐蔽目标复合电磁散射，用角相关函数、极化角相关函数对隐蔽目标进行了检测。

With the cattle dog with the regulation of public security police radar is to suppress the nerve center of the human bio-electromagnetic frequencies to control the state of the human spirit, to mislead the police charge man's cattle dog the feeling of admiration満bio-electromagnetic frequencies, or else the physiological regulation of fear and the fear of the effectiveness of bio-electromagnetic frequency and so on.

跟牛狗警察配合调控雷达是压制人类的神经中枢生物电磁频率，控制人类的精神状态，误导人类对牛狗警察充満敬佩的感觉生物电磁频率，不然就是调控畏惧和害怕的生理效能生物电磁频率等等。

Computer equipment, including host computer, magnetic disk unit, tape unit, terminal set, printer, etc., will produce electromagnetic radiation to a different extent, which will cause information leakage, such as leakage of various digital circuital currents,electromagnetic leakage of video signals of displays, electromagnetic leakage during on/off via keyboards, low frequency leakage of printers and so on.

计算机设备，包括主机，磁盘机，磁带机，终端机，打印机等所有设备都会不同程度地产生电磁辐射造成信息泄漏，如主机中各种数字电路电流的电磁泄漏，显示器视频信号的电磁泄漏，键盘开关引起的电磁泄漏，打印机的低频泄漏等。

Because any reports on the active control of rotating disk haven't be seen in China up to now, and this experiment research is important, so the complete set of active control system of rotating disk are built independently. The push-pull type electromagnet is applied to control the vibration of the circular disk. The power amplifier circuit that can respond to wide scope in frequency from DC to AC is designed by improving the existing circuit. The sensor signal is first low-pass filtered, then the proportional control plus the differential control circuit easy used in practice are applied to finish the more effective control. The electromagnetism shield is used as possible to decrease the signal disturbance from the electromagnet to eddy sensor.

考虑到目前国内尚未见到有关旋转圆盘振动主动控制的相关报导以及实验的重要性，自行设计制作了一整套旋转圆盘振动主动控制系统：提出并采用推拉型电磁作动器来控制圆盘的振动；在改进现有电路的基础上，自行设计了具有较理想特性的驱动电磁作动器的功率放大器；根据实际控制环境的特点，设计了先进行低通滤波，再采用比例和实用的近似微分电路构成的控制器，并采用了电磁屏蔽来减小电磁铁对传感器的干扰，以实现更有效的控制。

In order to improve the tower crane working efficiency, windlass mechanism has a set of gear change mechanism, are devided into high speed,mid speed and low speed, the gear change mechanism gained three speed through connecting 2 DLM5-40A and 1 DLM5-63A brake, control 3 brake by LHK switch,when it with the function of low-speed heavy-load, get through the model DLM5-63A brake; when it with the function of mid-speed mid-load and high-speed light-load, get through the model two DLM4-40A brake, and the operator can choice the good position as the weight of the goods, when change the speed, must be cut off the motor, 26 FUSAN CONSTRUCTION MACHINERY CO.,LTD PDF 文件使用"pdfFactory Pro"试用版本创建 www.fineprint.cn FUSHAN TOWER CRANE OPERATINGINSTRUCTIONS-QTZ125G(FS6016) no change speed when driving it.

为了提高塔机的工作效率，卷扬机构设有一套变速装置，分重，中，轻三档，变档装置是通过分别接通两个 DLM5-40A 和一个 DLM5-63A 电磁离合器来获得三种速度。用转换开关 LHK 控制三个电磁离合器，重载低速时，接通 DLM5-63A 电磁离合器，中载中速和轻载高速时，分别接通其余两个 DLM5-40A 电磁离合器，司机可根据物品的重量选择合适的档位，换档时，必须使电机断电，不允许在电机运行过程中换档。

A new method of improving shift quality of AMT with the fuel stop valve was indicated, the efforts to the shift quality at different input shaft and output shaft of clutch were analyzed, the control strategy was established, and the test on one kind of AMT heavy truck was conducted. The test result showed that it could decrease the rotational speed between the drive part and the driven part when clutch was locked, and improve the shift quality of AMT with control of the fuel stop valve.

提出了利用断油电磁阀改善AMT换挡品质的方法，分析了断油电磁阀不同断油和供油时刻对换挡品质的影响，制定了断油电磁阀的控制策略，并在装有AMT的某重型载货汽车上进行了试验，试验结果表明，换挡过程中通过控制断油电磁阀，可以减小离合器接合时主、被动部分的转速差，显著改善了AMT的换挡品质。

This technique is to make a device to instead those transmitters and reduce the need in pressure gauges. Using the electronic valve and flexible tube to construct the control panel is effective to connect the single pressure gauge with every sensor point in ventilation duct.

利用软管将欲量测之管段的压力导引到控制箱内，并将所有导引来的静压分别安装在一组并联的各电磁阀上，再将所有的动压分别安装在另一组并联的各电磁阀上，而该两组并联电磁阀的底部各安装一根连通管连结至单一差压计的高低压两端，并利用控制组件切换各电磁阀的启闭以达到多点压力监测切换的目的。

This technique is to make a device to instead those transmitters and reduce the need in pressure gauges. Using the electronic valve and flexible tube to construct the control panel is effective to connect the single pressure gauge with every sensor point in ventilation duct.

利用软管将欲量测之管段的压力导引到控制箱内，并将所有导引来的静压分别安装在一组并联的各电磁阀上，再将所有的动压分别安装在另一组并联的各电磁阀上，而该两组并联电磁阀的底部各安装一根连通管连结至单一差压计的高低压两端，并利用控制元件切换各电磁阀的启闭以达到多点压力监测切换的目的。

They include all kinds of super mini sealed DC electromagnetic relay, sealed electromagnetic relay, sensitive electromagnetic relay, mini sealed electromagnetic relay, super mini high-power relay, super mini sealed hold relay, coaxial relay, super mini sealed relay, mini sealed temperature relay, high temperature relay, heat protector, priming system safety protector, separation control overload switch, wind speed relay, time relay, sealed switch, program controller and protector for over loading, etc., which are used widely in aviation, aerospace, electronic communication, home appliance, etc.

各类超小型密封直流电磁继电器，密封电磁继电器，灵敏电磁继电器，微型密封电磁继电器，超小型大功率继电器，超小密封保持继电器，同轴继电器，超小型密封继电器，微型密封温度继电器，高温温度继电器，热保护器，火工品安全保护器，分离控制过载开关，风速继电器，时间继电器，风器，密封断路器，程序控制器，过载保护器等广泛用于航空，航天，电子通讯，家用电器等领域，其产品远销欧洲。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。