查询词典 velocity-time graph

In this paper, the FIR low-pass digital filtering method is first introduced for reducing the effects of noise signals in the experiment of velocity measurement of high-temperature flue gas flowing in pipe. The experimental results indicated that, only one peak presents in the cross-correlation graph, which is in good agreement with theoretical analysis result. Secondly, the temperature and pressure pulse signals of the high-temperature flue gas, obtained by thermocouple and pressure sensor, are introduced to explain the applicability of sensor characteristics.

本文介绍在测量管内流动的高温烟气流速的实验中采用FIR低通数字滤波器滤波方法可以排除干扰信号的影响的研究，实验结果证明，经过滤波处理后的信号互相关函数的图形不会出现大小相当的多个峰值，符合理论分析的结果；其次，本文还介绍了用热电偶和压力传感器采集的烟气温度和压力脉动信号，分析了传感器特性对相关测速的适应性。

After studying the theory of combined signal processing with acoustic pressure and particle velocity, a method of direction estimation underwater, which is based on intensity measurement using an acoustic vector sensor, is presented. In the low frequency field with kinds of line-spectra, azimuth angle estimation is achieved based on the probability density statistics and bar graph approach. It can preferably resolve the problem of left/right bearing resolution and estimate the direction of space.

为了对水下目标进行定位，基于声压与振速联合信号处理的理论，研究了复声强法对水下目标信号的定向技术，并使用概率统计和直方图的理论对目标的方位角和俯仰角值进行了估计，在线谱分量存在的低频段对估计角度进行了概率统计，较好地解决了左右舷的分辨问题，实现目标的全空间无模糊定向。

The plane parallel movement of body was studed.Velocity formula and acceleration formula of point in the plane graph is proved by means of complex vector,and a simple method to obtain the velocity and acceleration is proposed.

研究刚体的平面平行运动，用复矢量方法推导了平面图形内各点的速度、加速度关系式，给出了求解平面图形内各点速度、加速度的简捷方法。

The method for measuring the velocity distribution graph is established when the photosynthate transports along .

把速率范围均匀等分成若干个速率区间，以此为横坐标；测量并计算各速率区间对应运输的同化物或水分的相对百分比 Pi，以此为纵坐标，可得液流中同化物分子和水分子运输的速率分布曲线。

Velocity formula and acceleration formula of point in the plane graph is proved by means of complex vector ,and a simple method to obtain the velocity and acceleration is proposed.

研究刚体的平面平行运动，用复矢量方法推导了平面图形内各点的速度、加速度关系式，给出了求解平面图形内各点速度、加速度的简捷方法。

By the theoretical analysis and computer simulation,several characteristics of radar signal have been discussed,such as ambiguity graph,distance resolution,velocity resolution and low probability of intercept performance.The simulations show that the hybrid signal has a "thumbtack" ambiguity graph and a better performance for the distance resolution and the velocity resolution.

通过理论分析和计算机仿真，给出信号的模糊图、距离分辨力、速度分辨力以及低截获概率(LPI，Low Probability of Intercept)特性分析，结果表明该信号波形具有近似"图钉"型的模糊图和良好的距离及速度分辨力。

By means of flow field software PHOENICS,the flow field of four-strand T type tundish in a specific steel plant is simulated in this paper and the velocity vector diagram and streamline graph of the hot metal flowing under different settings of the flow control device s are analyzed and compared.

应用流场计算软件PHOENICS对某厂四流T型中间包流场进行了数值模拟，分析比较了不同控流装置下钢液流动的速度矢量图和流线图。

Based on the detailed analyzing of impact system working process, the differential eguation of the system was got, and the mathematical model of the hydraulic impact system was builted, on basis of the mathematical model, By using of dynamic simulation function of Matlab ,the author has built the simulation model of the impact system based on software Simulink and run it after inputting the parameter ,the dynamic graph curve of impact velocity and presser of oil and position of knife rest were got, and the dynamic characteristic of impact system was analyzed,the simulated results are accorded with the fact,and some rational parameters can be found.

在对冲击式采煤机液压冲击系统工作过程进行详细分析的基础上，运用微分方程建模方法，建立了液压冲击系统的数学模型即系统的动态方程，并在该数学模型的基础上，采用Matlab中的Simulink动态仿真功能，建立了基于Simulink的冲击系统仿真模型，通过给定冲击式采煤机冲击系统的相关参数，对该系统进行仿真，得到了冲击式采煤机工作过程中冲击速度和油液压力以及刀架位移的变化曲线，进而对冲击系统的动态特性进行了分析，结果与实际情况较为吻合，并由此得出某些合理的参数。

Click the "Autoscale" button in the Graph display. The graph will automatically rescale to fit the data for position, velocity, and acceleration.

单击图表显示中的&Autoscale&按钮，图表将重新分度以适应位置、速度和加速度的数据。

Main work of this text:First, in view of the use widespread some type parameter cage control valve, use the three-dimensional modeling software to establishment valve interior flow field model, through CFD preprocessor production computation grid, using CFD software to separate solve, may obtain the regulating valve interior flow field the visible graph, like pressure and velocity vectors chart, contour map and so on.

本文主要工作：一、针对使用广泛的某一类型参数的套筒型调节阀，应用三维建模软件建立阀门内部流场模型，通过CFD前处理器生成计算网格，应用CFD软件进行离散求解，可以得到调节阀内部流场的可视化图形，如压力、速度等矢量图，等值线图等。

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。