查询词典 synchronizing pulse

We also designed the timing circuit board to driver the MOSET and the network control system based on the probably fill mode in the future and the RF system of the storage ring in HLS. The high reverse overshoot exists in the current pulse with the pulse width of 60 ns. Further study is necessary to eliminate the reverse overshoot and to search the proper techniques on modulability of light pulse interval in HLS.

根据未来光源储存环可能的填充模式，以及光源储存环高频系统的特性，设计了MOSET开关驱动控制系统的时钟试验电路，和以太网控制试验电路，即将投入加工。60ns脉宽的脉冲电流，存在较大的反向过冲，需要进一步研究合适的反峰削除技术，以及可用于光源脉冲可调性的合适技术。

The adjustable amplitude range, symmetry and low ringing of the monocycle pulse are important to judge the performance of the pulse generator. Furthermore, the pulse generator should avoid the process variation and be suitable for different requirements.

目前脉波产生器的研究中，以脉波的高度可调性、对称性和低涟波为最重要，再者由於晶片中的制程变异或是需应用於不同的情况，因此目前的脉波产生器研究皆以此目标迈进。

The testing method comprises the following steps:(1) collecting the electrocardio-signal, the phonocardio-signal and the pulse signal of radial artery;(2) performing analog-to-digital conversion to the three signals to form the signal oscillogram;(3) identifying and extracting the characteristic point of each signal;(4) constructing the time series RR of electrocardio-period, the electromechanical delay time series and the pulse wave propagation time series of the combined variability index;(5) testing the validity of each time series;(6) calculating the heart rate variability, the electromechanical delay variability and the pulse wave propagation time variability; and (7) calculating the combined variability index of angiocarpy AV.

本发明提供了一种心血管系统联合变异性指标的检测方法和装置，检测方法包括以下步骤：(1)采集受检测者的心电、心音、挠动脉脉搏信号；(2)对三路信号进行模拟-数字转换，形成信号波形图；(3)识别和提取三路信号各自的特征点；(4)构造联合变异性指标的心电间期时间序列RR，电机械延迟时间序列和脉搏波传播时间序列；(5)检验各时间序列的有效性；(6)计算心率变异性、电机械延迟变异性和脉搏波传播时间变异性；(7)计算心血管联合变异性指标AV。

The pulse overflow DDS, in which the overflow signal of the phase accumulator is used for the pulse output, can be easily implemented by using FPGA. But its pulse output has the drawback of the phase jitter.

脉冲溢出型DDS利用相位累加器的溢出信号作为输出信号，很容易用FPGA器件实现，但它输出的脉冲信号存在相位抖动的缺点。

The study inchcates that the best error pulse width and the competition pulse width are proportional to the sampling period to us and the modulation degree of SPWM; the number of competition pulse are dependent on the slop of us.

均与模数转换的采样周期和调制深度成正比，与载波比成反比；竞争脉冲的个数由us的斜率决定。

In order to provide increased pulse width without compromising range resolution, a technique is used that provides for the transmission of a long pulse that can be compressed into a short pulse length in the receiver.

为了提供更多的脉冲宽度不损害分辨能力范围，使用提供长脉冲传输的技术，它可以在接收器中被压缩成短脉冲长度。

Resonant laser ablation is a two-step process, occurring within a pulse of a tunable laser, in which the leading edge of the laser pulse ablates the surface of the solid sample to produce neutral atoms or molecules that are then resonantly ionized by the trailing edge of the same pulse.

共振激光烧蚀技术是指发生在同一激光脉冲时间内的两步过程，它是指用波长可调谐的染料激光取代固定波长输出的激光，并调谐激光输出波长实现所研究原子或分子电子态之间的共振跃迁，激光单次脉冲的前沿对样品进行烧蚀，烧蚀的物质在激光光束内形成粒子气团，同一次激光脉冲的后沿实现对气相原子或分子的共振电离。

Under the assumption of a sech〓 input pulse, TOD is significant only for pulse widths less than 10 femtoseconds resulting in pulse broadening as well as distinct amplitude oscillations on the leading edge. TOD is positively correlated with its length. The calculations presented here allow for the determination of the maximum thickness of crystal that may be used in the autocorrelation system.

结果表明当脉宽接近或小于10fs时，脉冲才有明显的展宽效应，脉冲的展宽倍数与晶体的长度成递增关系，计算同时给出能基本消除三阶色散的展宽效应的倍频晶体的最大厚度，为进一步实验研究提供了依据。

Secondly, we provide a two-level model to depict the one-, two-and three-photon fluorescent process and with it to calculate the one-, two-and three-photon fluorescence intensity dependence of the incident excitation intensity and time. We study the fluorescence intensity when excitation light's time distribution are square pulse、Gaussian pulse and sech pulse. We find that the influence of excitation light's time distribution on the two- and three- photon fluorescence peak intensity is larger than the one-photon fluorescence peak intensity. Two-level model can account for the behavior of saturation fluorescence.

然后用二能级模型解释了单、双、三光子激发原理，在理论上推导出了单、双、三光子吸收诱导荧光强度与脉冲强度以及脉冲作用时间的关系，并进一步研究了入射光时间分布分别为矩形、高斯型、双曲正割型时激发溶解在氯仿溶液中的C22H22N4O样品所产生的荧光峰值光强，结果表明激发光的时间分布对双、三光子荧光峰值强度的影响比对单光子的影响要大。

Result］ The syndrome of phlegm heat blocking lung is featured with fever,heavy cough,much sputum,red tongue,yellow greasy moss,slippery and quick pulse/purple and stagnant finger mark;the syndrome of wind heat with fever,heavy cough,snuffle and runny nose,red tongue,thin and yellow moss,shallow and quick pulse/ purple and shallow finger mark;qi deficiency of lung and spleen with impotent cough,much sputum,pale face,light tongue,white and greasy moss,thin pulse/light red or stagnant finger mark.

结果］痰热闭肺证以发热，咳声重浊，痰多，舌红，苔黄腻、厚，脉滑数、指纹紫滞为特点；风热证以发热，咳声重浊，鼻塞流涕，舌红，苔薄黄，脉浮数/指纹浮紫为特点；肺脾气虚证以咳声无力，痰多，面白无华，舌淡，苔白腻，脉细、指纹淡红或淡滞为特点。

I'm not an actor. I'm a professor of paleontology.

我不是演员，我是古生物学教授

Spider Network Web site that is a very image of the name.

网络蜘蛛即Web Spider，是一个非常形象的名字。