step pulse

This paper provides the energy equation for non-stationary mine airflow and analyzes transient characteristics of step pulse of periodical pressure in an airway when there is an air door or regulator.

建立矿内空气非定常流动能量方程，分析了压力周期矩形脉冲在有调节风窗或风门的巷道中的瞬态特性。

Step 3: Check carotid pulse

3.检测颈动脉

Different waveform signals such as ramp function, step function, pulse function and exponential function are available by changing the parameters of the signal generator.

通过改变信号发生器的参数，可方便得到斜坡、阶跃、脉冲和e函数等各种不同波形的信号。

Error is noncumulative as long as pulse -- step integrity is maintained by the stepper motor.

只要步进电机维持完整步进脉冲发生出错也不会累积.

The reduction step of catalyst with butene-2 and reoxidation step of reduced catalyst with oxygen were investigated by the pulse method.

用脉冲法研究了催化剂用丁烯-2还原及还原催化剂用氧再氧化步骤。

The thesis analyses the principles and characteristics of the pulse generator composing from avalanche transistor and step recovery diode ( SRD), the analysis provide the necessary theoretic bases for design and realization nanosecond and sub-nanosecond pulse circuit.

论文分析了由雪崩晶体管组成的窄脉冲发生电路和阶跃二极管组成的脉冲整形电路的原理与特性。为纳秒和亚纳秒级脉冲电路的设计与实现提供了必要的理论依据。

The design of power in accordance with ordinary laboratory user requirements, parameters of the proposed based on pulse width modulation ( PWM) high efficiency, low power switch power dc voltage converter design method, adopts full bridge, step-down, mainly push-pull loop circuit topology.

本设计依照普通实验室用户对电源参数的要求，提出了一种基于脉冲宽度调制（PWM）高效率、低功耗开关电源直流电压转换器的设计方法，采用全桥、降压、推挽回路为主电路拓扑。

We always think one step ahead; endeavor to grasp the pulse of market trends.

我们的所想始终先于市场; 紧随市场趋势的脉搏.

Besides that, this paper also presents a new grouping program arithmetic of stair-step and pulse methods.

此外, 本文还提出了一种阶梯脉冲式的分组编程算法.

According to step-response experiment, math model of the hotplate was set up and the temperature of controlling system including temperature detection circuit, PD controller, voltage pulse-wide transforming circuit and executor was designed.

以阶跃响应实验为基础，初步建立起控制系统的数学模型，设计了适用于该电热板的闭环温度控制系统。系统主要包括温度检测电路、PD控制器、电压-脉宽变换电路及执行元件。