速度

The Doppler frequency shift and the Doppler broadening are comprehensively utilized, the narrow-band phase plate is inserted between a collimating mirror and a focusing lens of an imaging probe, thereby implementing the spatial encoding of the Doppler information, realizing the imaging requirements on the spatial high-resolution three-dimensional speed vector, combining with the Doppler OCT method which is based on the phase resolution technology to meet the high-speed and high-sensitivity measurement requirements and finally realizing the speed vector imaging with high-resolution, high-speed, high-sensitivity and large-imaging range of the three-dimensional flow field of the microfluidic chip.

综合利用多普勒频移和多普勒展宽，并在成像探头的准直镜和聚焦透镜之间插入窄带相位片，实施多普勒信息的空间编码，实现空间高分辨三维速度矢量的成像要求，再结合基于相位分辨技术的多普勒OCT方法则能够满足高速度高灵敏度的测量要求，最终实现对微流控芯片立体流场的高分辨率、高速度、高灵敏度、大成像范围的速度矢量成像。

The computational results indicate that surface catalytic combustion restrains gas phase combustion. Inlet velocity and tube diameters have important influence on catalytic combustion of hydrogen. For smaller inlet velocities,reaction is dominated by gas phase combustion. As the inlet velocity increases,there exist both surface catalytic combustion and gas phase combustion. For bigger inlet velocities,reaction is dominated by surface catalytic combustion. The temperature of flame core decreases with the decrease of tube diameter.

计算结果表明，表面催化反应对空间气相反应有抑制作用；入口速度和管径对氢气的催化燃烧过程有重要的影响，在入口速度较小时，燃烧主要是空间气相化学反应，随着入口速度的增大，燃烧过程同时存在着表面催化反应和空间气相反应两种控制因素，在入口速度较大时，燃烧主要是表面催化燃烧过程；随着管径的减小，微型管道内反应的最高温度降低。

Prominence a wide variety of shapes and movement characteristics, in general can be divided into four categories:(1) quiet prominence, change is slow, longer life expectancy, up to the number, and with the presence of sunspots related to sunspots for a long time, it is also a little more;(2) the activities of prominence, from a quiet prominence changes years, the movement is faster, but lower than the sun's surface escape velocity, so mostly circular, the material eventually thrown off the plane back to Japan;(3) the outbreak of prominence, activities of the most intense one, and sometimes velocity can exceed the Sun the surface escape velocity, reaching 100 km D seconds, or even higher altitudes of up to one million kilometers, 20,000 kilometers thick;(4) crown-shaped prominence, looks like clouds, is a rather exceptional prominence.

日珥有各种各样的形状和运动特征，大体上可分为四类：（1）宁静日珥，变化缓慢，寿命较长，可达数目，并与黑子的存在有关，黑子多时，它也多一些；（2）活动日珥，由宁静日珥变化而来，运动速度较快，但低于太阳表面逃逸速度，因此多为环形，抛出的物质最终仍落回日面；（3）爆发日珥，活动最激烈的一种，有时运动速度可超过太阳表面逃逸速度，达100公里D秒，甚至更高，高度可达上百万公里，厚达2万公里；（4）冕形日珥，貌似浮云，是一种比较特殊的日珥。

The analysis data came through scene surveys and video record investigations. The stair speed rule considering the factors of sex, age, and the information guide is analyzed by statistics methods. According to the change rule of the density with speed, the speed or volume data at the certain density are combined. The relationship between volume, density and speed is obtained through suitably enhancing the density of the data in sensitive regions.

通过现场观测和摄像调查获取大量数据，利用统计学的方法分析性别、年龄以及信息对楼梯速度的影响规律；根据行人速度随密度变化的大致规律，对给定密度下的行人速度或者流量数据进行合并处理；适当加密变化敏感区域的数据，并利用这些统计数据建立上下楼梯行人的流量—行人密度—速度曲线关系。

In fact, drift angle control eliminates the crosswise image motion speed,so it is a part of image motion compensation.

由于偏流角的存在，使得像移速度在像面坐标系存在两个分量：前向像移速度和横向像移速度，偏流角控制本质上是消除横向像移速度，因此，偏流角控制是空间相机像移补偿的一部分。

Citing the classical thermodynamics formulae that measured the velocity of airflow using resistance temperature under the force convection condition, the equations are detruded following the measuring principle.

由强迫对流条件下热电阻检测气流速度的经典热力学公式，根据传感器检测原理推导得到Iw恒定时气流速度-热电阻丝电阻关系式、惠斯登电桥输出电压-气流速度关系式、热电阻的温度-气流速度关系式和惠斯登电桥输出电压-热电阻检测温度关系式。

The results show that nonlinear dry friction between mandril and tube conduces to the self excited vibration of tube and the drawing speed is the main factor which determines whether the mandril static balance is stable.

分析结果表明，抖纹产生的主要原因是芯棒与钢管之间的非线性干摩擦力导致芯棒产生自激振动；钢管的拉拔速度及钢管表面润滑层的好坏是决定芯棒的静平衡位置是否稳定的关键因素，提高拉拔速度可将干摩擦阻尼转化为粘性阻尼，同时也使拉拔速度远离临界速度，从根本上消除抖

Compared with the sail style and the hang style, the hitch kick style have advantages to join the front swing and trig swing of swing leg tightly, to speed the buffer and stretch of take-o?leg, to acquire more vertical muzzle velocity and to decrease losing of horizontal velocity, which results in more velocity and more angle when take o?.and more vertical height of body center, has advantage to obtain better result.

走步式空中技术能在起跳过程中通过紧密衔接的摆动腿加速前摆和制动前摆，加快起跳腿的缓冲和蹬伸动作速度，促进身体重心获得更大的垂直速度，而且水平速度没有更多的损耗，从而获得更大的腾起速度和腾起角，腾起时身体重心的垂直位置更高，最终取得优异成绩，促进跳远起跳技术朝着快速积极的方向发展。

The fact that urokinase can hydrolyse plasminogen to generate angiostatin without the participation of free sulfhydryl donor L-Cys suggests that there might be another pathway of angiostatin generation, in which urokinase hydrolyse plasminogen to generate angiostatin directly.

我们还比较了pH7.4、pH8.0、pH9.0三种pH条件下尿激酶酶切纤溶酶原生成血管抑素的反应结果，发现酶切活性在pH9.0时速度最大，pH8.0时反应速度最慢，pH7.4时反应速度介于二者之间，由此表明pH对上述酶切反应速度确实存在影响。

It is indicated that characteristic of the seasonal variation of Antarctic sea ice is that the coagulated period is longer than the thaw period.

结果表明，南极海冰的季节变化特点是海冰融化速度远大于凝结速度，而北极海冰融化速度与凝结速度基本相同。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。