Results indicate:(1) The newly developed simulation technology can form fairly average and easily controllable back pressure downstream the inlet, so it can he used to investigate the back pressure characteristics of hypersonic inlets.(2) By regulating the valve of injection pipe, the simulation technology can realize the switch of hypersonic inlet started state and unstarted state in about 8 milliseconds, so it is suitable to investigate the starting/unstarting/resarting problem of hypersonic inlets.
结果表明：(1)所提出的凹腔喷流技术可在进气道下游形成较为均匀的、可控的背压环境，因此可用于进气道的反压特性研究；(2)适当调节凹腔的喷流总压，并在实验中实时控制阀门的开度，凹腔喷流技术能够在较短的风洞实验时间内（约8s）实现进气道起动、不起动、再起动流态之间的切换，因此可用于进气道的不起动／再起动特性研究。
Shown in Figure 5-1 shows, the proportion of the electromagnetic type pilot relief valve regulating the input current I, system pressure can be achieved without level regulation, it will not only loop structure is simple, the pressure switch smoothly, but also make it easier for system implementation remote control or program control.
如图5-1所示，调节先导型比例电磁溢流阀的输入电流I，即可实现系统压力的无级调节，这样不但回路结构简单，压力切换平稳，而且更容易使系统实现远距离控制或程序控制。
The paper emphatically introduces the speed regulating principle, structural characteristics and test situations of speed regulating system of new 1140V voltage direct fed switch reluctance motor for electrical haulage shearers.
本文着重介绍电牵引采煤机采用的新一代1140V电压直接供电的开关磁阻电机调速系统的调速原理、结构特点及试验情况。
Combing the SCM hardware resources with the software process, the system design completes the control functions such as digital impulse spring, digital logical switch and digital feedback, achieves a reversible adjustable-speed regulating control of DC electromotor, and improves the precision and control capability of reversible adjustable-speed regulating system.
利用单片机的硬件资源与软件程序相结合，完成数字脉冲触发、数字逻辑切换及数字反馈等方面的控制功能，实现对直流电动机的可逆调速控制，提高可逆调速系统的精度和控制性能。
The invention provides a pipeline gas pressure stabilization regulating system including a pressure monitoring system and a pressure regulating system, the pressure regulating system includes a fuel tank, a first pressure release valve and solenoid switch connected in turn, the solenoid switch connects to a first buffer vessel set, the other end of the first buffer vessel set connects to a regulating valve set by a second buffer vessel set, then connected to a combustor on the one hand; on the other hand the other end of the first buffer vessel set separately connects a secure boot flame and an igniter by a general pressure reducer; a gas pressure sensor in the pressure monitoring system is arranged on the top of the first buffer vessel set and the second buffer vessel set.
本发明的目的是提供一种管道气体压力稳定调节系统，该系统包括压力监测系统和压力调节系统两部分，所述压力调节系统包括：燃料罐，依次连接的第一减压阀和电磁开关，所述电磁开关与第一缓冲罐组相连接，所述第一缓冲罐组另一端一方面通过第二缓冲罐组与调节阀组相连接，然后与燃烧器连接；另一方面则通过通用减压器分别与安全引导火焰和点火器相连接；所述压力监测系统中的气体压力传感器设在所述第一缓冲罐组和第二缓冲罐组的顶部。
Electric valve for regulating the general as well as the volume switch, such as: fan-coil terminal.
电动阀一般用于调节，也有开关量的，比如：风机盘管末端。
When needing large range of regulating, it can switch over to the way of adjusting the phases.
当需要较大调节范围时，可切换到变形位差调节方式，满足调节范围要求。
A charge pump with a MOSFET regulating switch working in saturation region was presented.
设计了一种采用饱和区MOS管作调节开关的电荷泵，通过控制饱和区MOS管的导通电阻来调节电荷泵的输出电压。
Set in the form of debit switch, regulating the operation only to bars.
钉扣形式切换，只需调节操作杠即可。同时，2种钉扣形
In the part of switch volume regulating, the power amplifier is worked at switch-state, which can increase the efficiency of high-power amplifier and decrease volume of radiator, consequently decrease volume of the alarm.
在音量调节方面采用开关音量调节技术，不管输出多大的功率，功率放大器始终工作在开关状态，从而提高功率放大器的效率，大大减小散热片的体积，有利于缩小报警器的体积。
Charge pump; regulating switch; saturation region; on-resistance; low output voltage ripple
电荷泵；调节开关；饱和区；导通电阻；低输出电压纹
On project applications, nine-zone control policy is more mature, but improved nine-zone fuzzy boundary control policy has solved the problem of voltage and reactive power that is frequently adjusted in some zone. It can make regulating times of tap changing switch of on-load-tap-changer-transformer reduce to least at qualified voltage and reactive balance, thus the service life of tap changing switch of transformer is greatly improved, the line loss may decrease 20% also.
在工程应用上，传统九区域控制策略应用较为成熟，但对其改进后的模糊边界控制策略，解决了部分区域调节振荡问题，它能在电压合格、无功基本平衡时，使有载调压变压器的分接开关的调节次数降至最少，从而大大提高变压器有载分接开关的使用寿命，线损可降低20%左右。
Doubled CO〓 concentration increased the anti-oxidative ability in spring wheat (Triticum aestivum L. cultivar 292 and 8139), and delayed the appearance of DNA ladder at the same time. All these results suggested that the oxidation-reduction state play an important role in regulating PCD, both in tobacco and in wheat, the open state of PTP was necessary element in regulating PCD in tobacco cells induced by salt stress. The cellular oxidation state and the open state of PTP could promote each other, which suggested reactive oxygen species could lead to a self-amplifying process. This positive feedback loop may act as an all-or-nothing switch, which is in good accord with the hypothesis that PTP constitutes the central coordinator and executioner of PCD.
这些结果表明：1细胞的氧化还原状态都参与了盐胁迫诱导的烟草原生质体PCD过程，另外利用改变CO〓浓度成功的改变了两品种小麦的氧化还原状态，同时也显著了改变了PCD发生的时间，进一步证明细胞的氧化还原状态参与植物的PCD可能是一个比较普遍的现象。2PTP的开放状态也参与了PCD的调控过程而且细胞的氧化还原状态和PTP的开放状态可能有相互促进的作用，这意味着一旦细胞内活性氧增加，就可以通过线粒体形成一个自我扩增的过程，这种正反馈效应使这一过程一旦启动就不能逆转，这也进一步证明了PTP是PCD过程的核心调控因素的假说。
To take positive and negative pressure valve to open three valves, screw pine differential pressure transmitter body and sewage screws for the sewage, the sewage completed tighten the screws; ⑦ observe the instructions of instruments, until the output of a normal, if the regulating system, and auto-manual switch.
开启三阀组正负取压阀，拧松差压变送器本体上排污螺丝进行排污，排污完成拧紧螺丝；⑦观察现场指示仪表，直至输出正常，若是调节系统，将手动切换与自动。
To take positive and negative pressure valve to open three valves screw pine differential pressure transmitter body and sewage screws for the sewage the sewage completed tighten the screws; ⑦ observe the instructions of instruments until the output of a normal if the regulating system and auto-manual switch.
开启三阀组正负取压阀，拧松差压变送器本体上排污螺丝停止排污，排污完成拧紧螺丝；⑦观察现场指示仪(guan1 cha2 xian4 chang3 zhi3 shi4 yi2)表，直至输出正常，若是调节系统，将手动切换与自动。
A switch potentiometer can turn on or turn off the power and can quit the voltage regulating circuit.
开关电位器可以通断电源并能退出调压电路；
Neutral autotransformer The transformer is composed by the non - contact on load automatic voltage regulating tap switch and transformer itself.
中性点接地自耦变压器该变压器由无触点有载自动调压分接开关和变压器本体两大部分组成。
The cascade speed-regulating system composed of normal three-phase full-controlled bridge inverse transformer and rotor-side short-circuit switch is introduced. With change of rotor-side short-circuit time the operation under high power factor can be realized.
介绍的串级调速系统由普通三相全控桥逆变器加转子侧短路开关组成，采用改变转子侧短路时间的控制方法，可实现高功率因数运行。
The chopper circuit controls the output pulse by regulating the dutyfactor and the frequency of switch driving signal.
斩波电路通过调节开关器件频率和占空比，控制输出波形。
This paper presents a method that chopping wave is done by switch devices which consist of three-level resistance regulating module and intelligence power module IPM, and which realizes constant-current discharge of storage battery.
实现蓄电池恒流放电过程智能控制是蓄电池放电装置发展的必然趋，本文提出了一种通过三极电阻调节模块和由智能功率模块IPM为开关器件进行斩波从而实现蓄电池恒流放电的方法。