查询词典 Pulse

This paper firstly discusses the principle of UWB pulse array beamforming. Then a beamforming scheme is presented based on multi-rate filter bank, which is suitable for UWB pulse signals. The proposed method avoids the hardness of delays control in time domain, and can obtain the uniform frequency invariant array response in such a wideband for UWB signals.

该文提出一种适合UWB脉冲信号的基于多速率滤波器组的波束形成方法，避开了时域处理中延迟控制的问题，同时实现了大带宽范围内的均匀一致的频率不变阵列响应。

First of all, we review the development of ultrashort pulse-laser technique ,and key techniques to upbuild high-energy ultrashort pulse-laser system and estimate of the techniques are introdused.

本文首先回顾了超短脉冲激光技术发展的历史，分析了目前飞秒激光的现状，并且讨论了建立高功率短脉冲激光装置的关键技术。

Shanghai Yahong Electrical Lighting Co., Ltd is the professional manufacturer of High Pressure Sodium Lamp, Metal Halide Lamp, Fishing lamp, color Metal Halide lamp, Uni-form Pulse Start Metal Halide Lamp, Pulse Start Metal Halide Lamp and Mercury Vapor Lamp etc, the company locates in Shanghai, it is very convenient for shipping.

上海亚鸿照明电器有限公司是专业生产高压钠灯，金属卤化物灯，捕鱼集鱼灯和高压汞灯等高强气体放电灯光源的生产基地。公司创建于1997年，坐落在上海市宝山区，直达上海港，交通极为便利。

The aortic pulse wave velocity and pulse pressure are used in evaluation of arterial stiffness.

目前评估大动脉僵硬的方法主要有脉压差和主动脉脉搏速度等。

This paper presents adigital pulse of the specific method,the use of piezoelectric sensors have apulse,after plastic surgery to enlarge,the importation of SCM within the corresponding control,which measured the pulse of one minute,beating number.

本文首要介绍了数字式脉搏计的具体实现方法，利用压电传感器产生脉冲信号，经过放大整形后，输入单片机内进行相应的控制，从而测量出一分钟内的脉搏跳动次数。

This text introduced the intelligence pulse test system by microcontroller(AT89C51). The system realiae to electronics measure of human body pulse, and realize the auscultatory function by outsider louspeaker.

本文阐述了利用 AT89C5 1单片机做控制核心的智能脉搏测试系统，实现了对人体脉搏的电子测量，并且能通过外界扩音器实现听诊的功能。

Therefore, the theory and experimental results provide the fundamental design for the plenum pulse cleaning system in the plenum-pulse baghouse.

该理论和实验研究内容为气箱式脉冲袋式除尘器脉冲清灰系统设计计算提供了理论依据。

If the dust cleaning efficiency is known, the geometric parameters of the cleaning system, pulse-jet pressure, time and filtration area of a plenum box (or the diameter, length and numbers of the fiber) will be determined in the pulse-jet baghouse.

若预先确定要求达到的粉尘剥离率，可以通过清灰气流速度方程和剥离力方程确定脉冲清灰系统的几何参数、脉冲喷吹压力、脉冲喷吹时间和分室内的过滤面积（或滤袋直径、滤袋长度和滤袋数量等）。

The influences of plating process parameters, such as sulphamate concentration, electrolyte pH value and temperature, and pulse parameters, such as cathodal current density, pulse current frequency and duty cycle, on the micro-hardness of the nickel deposit has been studied by orthogonal experiments.

利用正交试验法分析研究了主盐氨基磺酸镍浓度、电镀过程工艺参数及脉冲参数（阴极电流密度、脉冲频率和占空比）对镀层显微硬度的影响；并对相关参数进行了优化。

It is concluded that the main influence factors on the micro-hardness of the nickel deposit are sulphamate concentration and electrolyte temperature. The most hard nickel deposit layer was obtained with sulphamate concentration 700g/L, cathodal current density 5A/dm2, pulse current frequency 800Hz, pulse current duty cycle 0.6, electrolyte pH value 4.0, electrolyte temperature 70℃.

试验结果表明：主盐浓度和镀液温度是影响镀层硬度的显著因素；当主盐氨基磺酸镍的浓度为700g/L，阴极电流密度为5A/dm2，脉冲频率为800Hz，占空比为0.6，镀液pH值取4.0，镀液温度为70℃时，可以制得显微硬度最高的镍镀层。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。