查询词典 velocity

MethodsDoppler ultrasonography was used to measure the parameters including systolic maximal velocity, diastolic minimal velocity and resistent index of renal interlobar arterial bloodflow on 72 patients with renal diseases, of whom 26 were performed renal biopsy for pathological findings.

方法对72例肾脏疾病患者，应用彩色多普勒超声诊断仪，测量肾叶间动脉收缩期峰值流速，舒张期末流速及阻力指数；对其中26例患者进行肾活检病理组织学观察。

The main factors effecting on exploration precision of surface wave are analyzed in the light of calculation of phase velocity of surface wave; the merits and demetits of common computing methods for phase velocity between stations and their applied range are discussed and calculation of interstation Green's function for correcting phase is put forward to get the precise phase difference between two stations.

分析了影响面波勘探精度的主要因素，针对计算面波相速度的精度问题，讨论了常用测量台间面波相速度方法的优缺点及其适用范围，并提出通过测量台间格林函数进行相位校正，以得到两台之间的精确相位。

The main factors effecting on exploration precision of surface wave are analyzed in the light of calculation of phase velocity of surface wave; the merits and demetits of common computing methods for phase velocity between stations and their applied range are discussed and calculation of interstation Green's function for correcting phase is put forward to get the precise phase difference between two stations.

分析了影响面波勘探精度的主要因素，针对计算面波相速度的精度问题，讨论了常用测量台间面波相速度方法的优缺点及其适用范围，并提出通过测量台间格林函数进行相位校正，以得到两台之间的精确相位。以合成的高频理论地震图作为记录信号，并在理论地震图上叠加了 2 0 %的随机噪声，利用这些方法分析理论信号，数字实验表明：在相干频率范围内，格林函数方法能够精确测量台间相速度，而互相关法和窄带通滤波互相关法所得结果较为离散。

The kinematically admissible velocity fields of the web, head and base of rail are determined, respectively, and the corresponding strain rate fields and the intensity of shear strain rate are also obtained. Then the plastic deformation power, the friction powers and the powers consumed on the velocity discontinuity surface are obtained.

然后分别给出了轨腰、轨头及轨底的运动学许可速度场以及相应的应变速度场和剪应变速度强度，并求出了相应变形区的塑性变形功率、速度间断面上消耗的功率以及由于摩擦产生的摩擦功率。

Aiming at the special deformation mechanism during the with tension rolling of H beam in universal pass, a three-dimensional continuous kinematically admissible velocity field is put forward for the first time, in which, the non-uniform distribution of longitudinal velocity in lateral direction and the special deformation mechanism of the web and flange joint deformation zone are taken into consideration.

针对H型钢在万能孔型中带张力轧制时特殊的变形机理，首次提出了考虑金属横向流动的三维、连续运动学许可速度场；速度场中考虑了纵向流动速度沿横向的不均匀分布以及腹板和翼缘交界变形区的特殊变形状态。

Read and write of flash disk as USB host.According to the request of this subject, the system hardware and software for the slave device, and the communication interface to the master PC are developed. Detailed works are as follows: in order to implement the measurement principle in the system, flow-liquid levelmethod is used;velocity of flow is measured through rotor Kinemometer;water level is surveyedvia RS485 interface and pressure sensor;the C8051F060 chip which is in high performance andintegration, produced by Silicon Laboratories Company as master chip is used to capture and measure the width of impulses, so singals of flow velocity are collected and disposed;the 4×4 matrix keyboard and LCD are used in the part of man-machine interface which are easy to input, legible to read, various to display, comfy to be accepted and plain to show measure and inquiry results;FRAM memory FM3164 is used to carry out the non-volatile memory of data and accurate real-time clock.;SL811HST chip is used as USB host which can read and write flash disk,thereby a kind of adscititious mass storage is accomplished .

根据研制任务的要求，课题期间主要完成了下位机系统硬件和软件，设计了与上位机的通讯界面，所做的具体工作包括：测量原理在系统中的实现，采用了流速—水位计算法，通过旋桨式流速仪来测量流速，通过RS485接口与压力变送器通讯测量水位；主控制芯片采用了Silicon Laboratories公司的高性能、高集成度C8051F060芯片，利用其捕捉测脉宽的特性，实现了流速信号的采集和处理；人机接口部分采用了4×4矩阵键盘和LCD显示，输入方便，读数清晰，显示多样化，信息量大，易于被用户接受，更直观地显示测量及查询结果；通过采用铁电存储器FM3164实现了数据的非易失性存储和精确的实时时钟；通过采用SL811HST芯片，实现了USB主机的功能，可读写U盘，从而实现了单片机的外挂式海量存储。

To verify the accuracy of CFD simulations, experiments were carried out. The results of simulations with user defined function of the effects of impeller type and stirring rate on the velocity field were in good agreement with the output of particle image velocity. The oxygen mass transfer model can be used to predict the process of oxygen mass transfer in a vessel, and the logarithmical expression can successfully describe the relation between the oxygen concentration and the dissolution time.

结果表明，(1)采用Fluent软件并结合用户自定义方程(user defined function， UDF)能够很好地模拟出实际搅拌器内流场分布，模拟结果与采用粒子成像技术(particle image velocity， PIV)的实验测量结果相符；(2)采用氧气传质模型能预测氧气在搅拌器内的动态传质过程，同时氧气浓度与溶解时间的对数关系式能较好描述试验搅拌器内氧气动态传质过程；(3)在相同搅拌速度下，圆盘涡轮式搅拌器产生的湍流动能分布范围要大于桨式搅拌器产生的湍流动能，而且湍流动能分布更均匀，湍流强度更大。

Vascular endotheliocyte fluorescence staining and leukocyte fluorescence tracing method were applied, in combination with microscopic video system and computer imaging analyzing system, to observe in dynamic and quantitatively the influences of acupuncture on pia matral encephali microvascular morphology, density and blood flowing velocity at 3 hours, 6 hours and 24 hours after cerebral occlusion of meddle cerebral artery.morphology, density and blood flowing state at various time divisions observed directly microscopically and vascular endotheliocyte morphology and the state of brain tissue which near the microvascular after infusion with velocity in infarcted area at various time divisions measured in quantity in each group.microvascular endotheliocytes were colored worse and more fluorescent exudation appeared.

采用血管内皮细胞荧光染色及白细胞荧光示踪法，结合显微录像系统和计算机图像分析系统，动态定量地观察了针刺对大脑中动脉阻塞后3，6，24h软脑膜微血管形态、密度、血流速度的影响。主要观察指标：①从显微镜下直接观察各组大鼠不同时段软脑膜微血管的形态、密度、血流状况，以及注入荧光剂后血管内皮细胞形态和周围脑组织状况。②定量测量各组大鼠不同时段梗死区微血管密度、血流速度。结果：120只大鼠均进入结果分析。

The motorial nervous conductive velocity and the sensory nervous conductive velocity were measured by means of electromyography among all the patients.

在治疗前和治疗 4周后，观察感觉神经症状，采用丹麦 DISA 2500C型肌电图仪，对两组患者进行右腓总神经的运动神经传导速度，感觉神经传导速度测定。

In face of the fact that the movement velocity of an aerial mobile target in the infrared mono-station passive location technology is always in changeable, a real time velocity updating algorithm for aerial mobile target based on infrared camera motorial speciality is presented.

针对红外单站被动定位技术中空中机动目标的运动速度不断变化这一实际情况，提出了一种基于红外相机运动特性的对目标的运动速度进行实时更新的校正算法。

Diabetes is a social disease that affects several million people worldwide.

糖尿病是一个社会性疾病，全世界有数百万人罹患此病。

I'll call you on Friday to see if we can reschedule our luncheon meeting at your convenience.

我星期五会给您打电话在您方便的时候我们重新安排我们的午餐约会。