查询词典 direct current

That is, the motor winding capacitance in series with the Deputy, due to the role of the capacitor, so that Kim winding current phase ahead of the main winding current in phase 90 °, in accordance with the basic theory of motor learning: When the space two winding axis position is 90 °, and the flow of two windings of the current phase and poor 90 °, its synthesis must be for the rotating magnetic field, magnetic field, so that motor up and running.

这种电动机就是将电容与副绕组串联，由于电容器的作用，使副相绕组中电流的相位超前于主绕组中电流的相位90°，按照电机学的基本理论：当空间两绕组轴线位置为90°，且流入两绕组中的电流相位又差90°时，其合成磁场必为旋转磁场，从而使电机启动和运转。

So we designed a adaptive synchronizing controller based on hereinbefore hardware environment: first a small magnitude reference signal r is outputted to system through the signal card (to ensure that the vibrating system works in a linear state), and this signal is sent to the moving coil of vibrator through the power amplifier, so vibration is produced through electromagnetic induction. Secondly the vibration signal can feedback to the data acquiring card in the servo system through the acceleration sensor on the Vibroseis reactor M〓 and the base-plate M〓, then the computer can get the current vibrating state y〓 of the coil of vibrator according to the feedback information from the data acquiring card, and give a real time comparing between the current state y〓 and the reference output y〓 of the set-in reference model with current reference input being r , then regulates the correlative controlling parameters according to the error e〓=y〓-y〓 till y〓→y〓, finally normal signal sweeping begins with a certain phase fixed. Meanwhile a synchronization signal for seismic signal record is sent to seismograph from synchronization signal outputting component in the Vibroseis system to perform the controlling process of synchronization of sweeping phases.

为此，我们基于以上的硬件环境设计了一个自适应同步控制器：首先通过信号发生卡对系统输出小幅度的参考信号r(从而保证振动系统工作处于线性状态)，信号通过前置放大器、功率放大器等送到激震器动圈，并通过电磁感应产生振动，振动信号通过可控震源激震器反应块M〓和基板M〓上的加速度传感器反馈给伺服系统中的数据采集卡，工控计算机根据采集卡的反馈信息，获取当前激震器动圈的振动状态y〓，并实时地将该状态与内置的参考模型在当前参考输入r下的参考输出y〓进行辨识，再将两者输出误差e〓＝y〓-y〓对系统的有关控制参数进行调整，直至y〓→y〓，最后在经过某一固定的相位后，开始信号的正常扫描过程，与此同时，由可控震源系统的同步信号输出部件向地震仪送出一地震信号记录同步信号，进而完成扫描相位同步控制过程。

It is shown that under the action of the shock, the region I current moves towards the midnight, accompanied by a successive occurrence of two FAC structures: an anomalous FAC pair of opposite direction to the region I current and a new region I current of the same direction.

模拟结果表明，在激波的作用下，电离层Ⅰ区电流系统向子夜方向运动，在向阳侧相继出现与原Ⅰ区电流反向的异常场向电流对和同向的新生Ⅰ区电流对。

Short-circuit current duration of three parts, first, the current increased to the current time setting

短路电流的持续时间三部分组成：第一，目前提高到现在的时间设置

Results In the pyramidal neurons voltage-clamped at -60 mV, GABA evoked a transmembrane inward current and the peak amplitude of the current increased sigmoidally with increasing doses of GABA applied. Co-application of lidocaine resulted in a decline of IGABA and the IGABA was 4.05mmol/L.10mmol/L lidocaine resulted in right shift of concentration-response curve arid not only EC50 changing from 7.72mmol/L to 17.2mmol/L but also the maximal current unable to reach the top level.

结果 将钳制电位固定在－60mV，GABA以剂量依赖性方式诱导出内向电流；利多卡因明显抑制GABA诱导的Cl电流I(下标 GABA，50%抑制浓度(IC50)为4.05mmol/L，10mm/L可使GABA浓度效应曲线明显右移，50%有效浓度(EQ50)由7.72mmol/L增加到17.2mmol/L，且最大电流明显降低。

And a signal processing interface board is done to acquire these parameters such as engine speed, excitation current, output current, output voltage, and battery current.

和一个信号处理接口板是为取得这些参数，如发动机转速，励磁电流，输出电流，输出电压，电池和电流。

It is concluded that m = 2 tearing mode is produced by the current gradient. Ifoptimized current gradients are retained in the vicinity of q = 2 singular surface, the disruption can be avoided. There is no need to select current density profile on the whole plasma section.

结果表明这种不稳定性由q=2奇异面附近电流梯度的增大引起，因此只要在奇异面附近保持适当的电流梯度就可避免破裂发生，即对电流分布实行局部控制就可实现对破裂的抑制，并不需要去选取某种特定的整体分布。

Through the similar comparison operation conducted by standard self-correlation function formed with sinusoidal current the short circuit current and the inrush current can be distinguished by the magnitude of similarity coefficient.

这里，我们把启动电流还是短路电流看作随机信号，对数字信号相关函数原理的取样数据进行了分析以及对取样数据的自修正功能进行了计算。

Result of computation of content of the oxygen in ignition air current makes clear, the aerobic content in air current of microwave sirocco ignition is 21%, content of the oxygen in gas ignition air current is 8.59%.

点火气流中氧气含量计算结果表明，微波热风点火气流中的氧气含量为21%，煤气点火气流中氧气含量为8.59%。

Besides, I also find that firms report negative earnings for fiscal year, which have less current and future earnings response coefficient than report positive earnings, and firms report negative cash flows from operating for fiscal year, which have less current cash flow response coefficient than report positive cash flows. Indicating that firms report negative earnings or cash flow, because losses are more transitory and which stock prices less information but which future cash flow response coefficient more than report positive cash flows. Inference of this study because cash flow have substance effect, so when firms have negative cash flows investor more care about it, which have more cash flow response coefficient, and further find while distinguishing the degree of sophisiticated investor, investor the sophisiticated degree proportion is higher. Because they know information of the earnings, firms have more degree of shareholder sophistication for fiscal year, which have more current and future earnings response coefficient than which have less.

此外，本文也发现报导损失之公司，其当期及未来盈余反应系数较报导利润之公司低，以及公司报导营业活动之现金流量为负时其当期营业活动之现金流量反应系数低於报导营业活动之现金流量为正之公司，显示公司报导损失或营业活动之现金流量为负时，因为通常都是暂时性的故其股票报酬的资讯性较低，不过其未来营业活动之现金流量反应系数高於报导营业活动之现金流量为正之公司，本研究推论因为现金流量是有实质的效果，所以当现金流量为负值时投资人应该会比较关注，所以其反应系数较高，而进一步发现当区分投资人之精明程度时，投资人精明程度比重较高，因其会辨识盈余资讯而认为公司进行损益平稳化会增加其资讯内涵，故当期及未来盈余反应系数相较於投资人精明程度较低者高。

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。