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1.Early exhaust valve closing ( EVC ) timings result in high residual fractions in the cylinder, decreasing air mass in cylinder per cycle, increasing combustion duration, and decreasing IMEP while the pumping loss is decreased.
排气门关闭越早,缸内的残余废气量增加,每循环进气量减少,燃烧持续期变长,PIMEP减小,然而泵气损失减小;收藏指正
2.In this paper, a charge pumping effect in CCD with floating diffusion region is introduced, which will lead to a voltage shift and a special charge transfer loss.
本文提出了一种CCD(电荷耦合器件)中的电荷泵效应。 这种效应会引起FDR(浮置扩散区)的电位漂移,并带来一种特殊的电荷转移损失。收藏指正
3.This system can automatically adjust water pump motor’s rotation speed to keep water supply pressure constant and reduce power loss. In allusion to specific method of using MSComm6.0 function carries out between PC and SIMATIC S7-300 PLC serial communication at pumping station’s scout system and gives a method of communication program by VC++.
介绍了基于PC的变频恒压供水系统的构成和工作原理,针对泵站计算机控制系统中实际问题介绍了利用MSComm6.0函数实现西门子S7-300系列PLC与上位机的通信,并给出了基于VC++的通信程序设计方法。收藏指正
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