Automatic block system is one of the most important facilities to guarantee the security and high efficiency of railway. The ZPW-2000 series are the most advanced system in our country. The existent testing systems is used for railway electricity section to maintain and repair shift frequency equipments. However, testing system designed for manufacturers to test
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ZPW-2000R uninsulated frequency-shift automatic block system which is an advanced block system according with the situation of our country has been widely used in railway systems. However, the traditional test way of blocking system can not meet the production of new equipment and routine maintenance needs, the intelligent test system is needed to support the
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ZPW-2000R uninsulated frequency-shift automatic block system which is an advanced block system according with the situation of our country has been widely used in railway systems. However, the traditional test way of blocking system can not meet the production of new equipment and routine maintenance needs, the intelligent test system is needed to support the
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Being the most important one of internet protocols in the next generation,IPv6 is rapidly spreading in use. At the same time, it is very important that the IPv6 products of producers’are whether or not conformable to RFCs to be safe and reliable in communications. Therefore,as the method to justify that the IPv6 products are conformable
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Electro-hydraulic proportional technology has been widely used in various sectors of national economy. As the electromechanical switching actuator in the electro-hydraulic proportional system, the characteristics of the proportional solenoid have a significant impact on the performance of the proportional components and systems. The performances of the solenoid are affected by many uncertain factors, which makes
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Semiconductor device is widely applied because of its small size and long service life. It has been an important component of modern electronics technique. Due to the on/off characteristic of P-N junction to the forward and reverse current, semiconductor diode often uses as switch in pulse circuit. However, as the capacitance effect of the diode
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Satellite communication earth station relys on radio waves to work and needs to achieve the radiation and reception of radio waves. The device that radiates and receives radio waves is known as “antenna”. The performance of a satellite communication earth station antenna, to a large extent, determines the satellite communication earth station communication quality. Antenna
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Satellite communication earth station relys on radio waves to work and needs to achieve the radiation and reception of radio waves. The device that radiates and receives radio waves is known as “antenna”. The performance of a satellite communication earth station antenna, to a large extent, determines the satellite communication earth station communication quality. Antenna
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OLED is the abbreviation of Organic Light Emitting Diode. As a displaydevice, OLED have the advantage of self-luminous, thin and light, highbrightness, wide viewing angle, low power and rapid response, etc. As alight source, OLED has the advantage of light-emitting softly, diffusedsurface light source, easier to achieve white light, which can be madeinto any shape
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As an important trend of modern automotive industry, the developing of pure electricvehicle provides a way to solve such problems like energy shortage and environmentalcontamination. Test technology aiming at the pure electric vehicle control unit (VCU) is oneof the key technologies and builds a more effective and intelligence platform to ensure thequality of the VCU
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