This is by far the fastest deceleration of economic growth in any time in the30 years since reform in China began in1978. 到目前为止,这是中国1978年改革开放后的30年中经济减速最快的一次。
This paper introduced the function of acceleration time, deceleration time, acceleration pattern, deceleration pattern. And be related to the function of motor's start and stop. 本文介绍了变频器中的加、速时间,加、速方式,以及起动和停机的相关功能。
It avoided the prediction of the deceleration point by every sampled time. 根据采样次数决定加减速,可以避免预测减速点。
The acceleration time and deceleration time were corrected with pulse pressure and heart rate ( ATi and DTi). 经心率和脉压矫正后的加速时间(ATi)和减速时间(DTi)。
Jog running is that AC inverter runs under the jog frequency, jog acceleration time and jog deceleration time. 点动运行,就是变频器在停机状态时,接到点动运转指令后按点动频率和点动加减速时间运行。
Due to the impossibility to compute the exact length of NURBS curve through integration in a short time, it is very difficult to get the deceleration distance and to forecast the point to begin the deceleration stage in real time. 由于不能通过积分方法在短时间内精确计算NURBS曲线的长度,使得在数控加工过程中实时计算减速距离、判断最终减速段开始点变得非常困难。
Coronary flow spectrum in the distal LAD was recorded to measure the following indices: deceleration time, diastolic filling duration and the related time indexes corrected by R-R interval. 应用冠脉血流显像程序观察各组犬前降支结扎前和持续缺血再灌注1h后其远端内血流改变,测量减速度、减速时间以及舒张期血流充盈时间,并应用R-R间距对其中时间指标进行校正。
The research shows: the method of acceleration and deceleration via exponential rule will greatly improve the highest running frequency of stepping motor and shorten the acceleration and deceleration time. 研究表明,采用指数规律的升降速曲线将大大地提高微机控制步进电机的最高工作频率,大大缩短所需的升降速时间。
Predictive value of early mitral deceleration time in left ventricular volume dilation in patients with acute myocardial infarction 急性心肌梗死早期二尖瓣血流减速时间预测左室扩大的价值
At the same time, "slide hook" is avoided effectively through amending parameter like the minimum frequency and deceleration time; 同时,通过修改吊车变频器内最小频率、减速时间等参数,有效地避免了溜钩现象;
From the apical four chamber view, diastolic mitral flow was recorded using pulsed Doppler and peak filling velocity in early diastole ( E), peak filling velocity in atrial contraction ( A), E/ A ratio and early diastolic filling deceleration time ( DT) were measured. 在心尖四腔心切面,脉冲波多普勒记录舒张期二尖瓣口血流,测量舒张早期峰值血流充盈速度(E)、心房收缩期峰值血流充盈速度(A)、E/A比值及舒张早期血流充盈减速时间(DT)。
The ways of cancelling over voltage are setting up deceleration time, consumption of energy, feedback electric network brake and shared direct current bus bar soaking regenerated energy. 消除过电压主要通过设置变频器的减速时间、能量消耗、回馈电网制动以及共用直流母线吸收再生能量几种方法消除。
From the apical four chamber view, the image of mitral inflow was obtained and early diastolic peak flow velocity ( E), late diastolic peak flow velocity ( A), the ratio of E/ A and deceleration time of E wave were measured. 在心尖四腔心切面,应用脉冲多普勒超声获取舒张期二尖瓣血流频谱,测量舒张早期峰值流速(E)、心房收缩期峰值流速(A)、E/A和E波减速时间(DT)。
Calculational results show that the acceleration and deceleration time spans are the same for different scanning velocities with the acceleration and deceleration distances directly proportional to the scanning velocity. 计算结果表明:不同扫描速度下加速和减速时间相同,加速和减速距离与扫描速度成正比。
Of course S curve acceleration/ deceleration control use more time. 美国人的时间观S曲线加减速控制用时多。
Theoretical Model of Highway Capacity Based on Variable Deceleration Time 基于可变减速时间的通行能力理论模型研究
Based on the practical process, this paper presented a method to compute the deceleration distance in real time. With the result, trapezoidal velocity profile was adopted to smooth the velocity profile and S-curve velocity profile was adopted to smooth the acceleration profile. 基于插补的实际情况,给出一种实时计算减速距离的方法,在此基础上,实现了基于梯形速度曲线的速度平滑处理以及基于S形速度曲线的加速度平滑处理。
The thickness of blood vessels, inside diameter, area, flow, the length of color flow column, maximum velocity, acceleration and deceleration time were of good value on pulse tension. 对确定脉体有价值的指标是寸口脉管壁的厚度、管腔内径、管腔面积和血流量的大小以及寸口脉血流柱的长度、峰值流速血流、加速度和减速时间。
The results show that the increase in the burn off rate and deceleration time of friction welding can improve the toughness of the weld. 结果表明,增加变形速率可改善焊缝韧性。
The Analysis of the Trace Formed by Cylinder and Cone Deceleration-time of penetration of cone-shaped projectile 圆柱与圆锥斜交时交线形状的分析
Deceleration time of early left ventricular filling ( DT) was significantly longer in those with DM than in the NGT and IGT. 左室快速充盈减速时间(DT)DM组大于NGT、IGT组,差异有显著性意义;
The drivers 'actual behaviors in order to guarantee the traffic safety in driving were analyzed. Through that it puts forward the concept of variable deceleration time, and structure a theoretical highway capacity model of single lane based on variable deceleration time. 通过对驾驶员在行驶过程中为保证行车安全的实际驾驶行为进行分析,提出了可变减速时间的概念,并以此构建了基于可变减速时间的单车道通行能力理论模型;
Simulation results of braking deceleration are the same as experimental braking performances, the statements mentioned above is to prove that the nonlinear and time varying model may be adopted to research the braking process of automobile on the uneven and even road surfaces. 通过仿真计算,说明本文所建立的非线性时变轮胎模型对不平路面上车辆的制动性能仿真研究具有重要意义。
Firstly, an exponential acceleration and deceleration control technology combined with stepped mode is given after contrasting different time speed theory curve equation. 首先分析目前常用升降速控制技术,对比不同的时间速度曲线,推导理论控制方程,在此基础上提出一种改进的升减速控制方法,即指数形式结合台阶模式的加减速控制技术。
This paper first introduced related parameters of the method, including video buffer, present video frame number, network status parameter, video acceleration threshold, video deceleration threshold, time delay frame number, video frame rate, video standard frame rate and video frame rate variation. 首先文章将该机制中的所有相关参数作了简单介绍,包括视频缓存,当前视频帧数,网络状态参数,视频加速门限,视频减速门限,延时帧数,视频帧率,视频基准帧率以及视频帧率变化量。
Adhesion on the train, deceleration forces, braking time and braking distance is calculated in the paper. Then deceleration and speed curves, electric air distribution curves during the train braking were obtained. 论文中通过对列车粘着力、减速力、制动时间和制动距离的计算,得出了列车制动过程中减速力与速度曲线、电空分配曲线等。
This method changes the measurement of viscous torque into the measurement of deceleration time by proper simplifications to fluid viscosity definition. 该方法通过对流体粘度定义式作适当简化,最终将对粘性力矩的测量转变为对电机减速时间的测量。
From deceleration, braking distance and braking time, the performance of service braking and emergency braking has been analyzed. 同时,从减速度、制动距离、制动时间等方面分析常用制动和紧急制动的性能。