查询词典 Pulse

The integrated polyvinylidene difluoride piezoelectric pulse sensor is used to pick-up the pulse signals of examined person and turn to the electric signal under processing.

选用基于聚偏氟乙烯压电薄膜的集成化脉搏传感器把待检测对象的脉搏跳动转变成可处理的电信号，经过同相放大电路将传感器的微弱信号放大。

The electrons in the pre-plasma can be trapped and accelerated by the ponderomotive force of propagating laser pulse, and escape from the pulse as the latter reflects from the target surface, preserving high energy.

研究表明，通过有质动力加速过程，预等离子体中的电子可以得到强烈的加速，并通过进入固体靶而摆脱激光脉冲的束缚，这个加速过程比激光直接与固体靶相互作用中的电子加速过程要有效得多。

A single-stage and high power pulse tube cooler working between 20~40 K has been designed and constructed in order to precool the second stage of a 4 K separate two-stage pulse tube cooler.

为了满足液氦温区分离型二级脉管制冷机第二级预冷的需要，设计制作了1台20～40K温区单级大功率脉管制冷机。

An analog prefilter;(2) an ADC;(3) a digital pulse shaper;(4) pulse selection logic;(5) histogram logic, and 6

波器；（2）模数转换器；（3）数字脉冲整形器；（4）脉冲选择逻辑单元；（5）条带逻辑

In the presence of L-isoproterenol (through local infusion into area CA1), the theta-pulse stimulation with the parameter of 10 Hz, 150 pulses/train, 1 train, a frequency weakly modifying synaptic strength, induced a robust LTP, and this effect was blocked when DL-propranolol was co-administered. By contrast, the theta-pulse stimulation with the parameter of 5 Hz, 150 pulses/train, 3 train, a frequency strongly modifying synaptic strength, induced a significantly smaller LTP when DL-propranolol was administered into area CA1. Accordingly, DL-propranolol impaired rat's spatial learning in the water maze when infused into area CA1 20min pretraining.

正常情况下对突触传递效能仅有微小调制作用的10Hz的θ节律刺激（每串150个脉冲，1串），在CA1区局部给予L-异丙肾上腺素后，显著地诱导出LTP，这一效应可被DL-心得安所阻断；相反，正常情况下对突触传递强度有显著调制作用的5Hz的θ节律刺激（每串150个脉冲，3串），在CA1区局部给予DL-心得安后，所诱导出的LTP被显著压抑。

Methodological principles of complexity science and research thoughts of pulse examination ;2. Pulse examination could prognose the disease as well.

通过总结脉诊的临床功能，认为脉诊在诊治临床躯体性疾病中，可以辨识体质、致病因素、中医病机、西医疾病及对所患疾病具有预测功能。

Through the spectrum shaping, the bandwidth of the regeneratively amplified pulse was increased from approximately 20 nm to approximately 35 nm, which is near the bandwidth of the seed pulse.

另外用镀反射膜的平板滤光片进行了腔外光谱整形的实验，使再生放大器输出脉冲谱宽展宽到28 nm左右。

At first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu-lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band-pass filter, alternating amplifier, phase sensitive demodulatorn, pulse-width modulation, frequency scale circuit, moment current generator. Finally, using the graphics program language LabV-IEW which is designed for testing field especially by NI accomplishes the solfware design of testing system,realized the testing functions.

首先对加速度计及其测试技术的发展历史和现状，液浮摆式加速度计的工作原理和数学模型等作了简要的介绍，然后确定了以二元调宽脉冲再平衡测试回路为设计方案，并从控制理论的角度进行了分析，着重研究了系统中各部分的传递函数，利用系统开环传递函数分析了系统的稳定性，同时设计了系统的校正网络；分析了二元调宽脉冲再平衡测试回路的分辨率、采样约束以及测试精度等基本问题，并按照系统分析的结果设计了包括前置放大、带通滤波、交流放大、相敏解调、脉宽调制、频标电路以及力矩电流发生器等测试系统各部分硬件电路，验证了电路的正确性，最后按照测试系统的要求，采用了美国NI公司专为测试领域所开发的虚拟仪器工具——LabVIEW作为测试软件开发工具，利用该图形化编程语言完成了测试系统软件部分的设计，实现了测试功能。

Pulse numeration method and pulse period method are introduced in the paper, the precision of these two methods and the relation of precision and rotative speed are analyzed, based on the analysis a compounding method that is suitable for the whole speed range with higher precision is advanced.

分析了脉冲计数法与脉冲周期法的原理与实现，测量精度与转速的关系，提出在不同的速度段采用不同的速度测量方法，以保证在整个调速范围内都可以得到精度较高的速度参数。

METHODS: Exposed cutaneous branches rooted in rami posterior nervi spinalis and dominated muscles by exciding the median skin at the back of the rat's neck, given electric stimulation to the muscles by Low-frequency pulse transmitter. The output range was Voltage 0-40 V, frequency 1-111 Hz and pulse width 0-1 000 ms.

切开大鼠颈后正中表皮，显露脊神经后支皮支及其所支配的颈部后外侧肌群，使用低频脉冲发射器对上述肌肉进行电刺激，发射器的输出范围为：电压0~40 V，频率1~111 Hz，脉宽0~1 000 ms。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。