查询词典 Doppler shift

The structure and primary parameters of direct-detection Doppler lidar are described. The beam scanning method of atmospheric wind measurement is given,and computing formula of the three dimension wind filed is derived. The solution method of errors of wind velocity and wind direction is presented.

介绍了直接探测多普勒激光雷达的系统结构和主要参数，给出了该系统进行大气风场测量的光束扫描方法，详细推导了三维风场的计算公式，给出了其风速和风向误差的求解方法。

Based on the analysis, the block diagram of a flew directional Doppler bloo...

在上述理论分析的基础上介绍了新试制的方向性多普勒血流计原理框图。

Objective To discuss the diagnosis and operative modality selection of carotid body tumor by color Doppler flow image.

目的探讨彩色多普勒超声对颈动脉体瘤的诊断及术式选择的应用价值。

Before and after the treatment, the changes of clinical symptoms, ankle/brachia index, the nailfold microcirculation, laser doppler perfusion imaging and the transcutaneous oxygen pressure (tcpo2) of dorsum pedis were observed.

结果： 治疗后患者临床症状显著改善，有效率85%，与之对应，治疗后甲襞微循环总积分值明显降低（p.05），足背激光多普勒血流成像血流值增加（p.05），经皮氧分压值增加（p.05），三种微循环指标的改善与临床症状改善有很好的平行关系。

Methods: A total of 470 cases of type 2 diabetic lower-extremity arteries were detected with ES-1000SPM Doppler ultrasound equipment. The ankle/brachium index, arteria dorsalis pedis or arteria tibialis posterior's pulsatility index and resistent index were measured.

采用ES-1000SPM多普勒超声血流仪检测470例2型糖尿病患者双下肢动脉，观察踝／肱指数、足背动脉或胫后动脉搏动指数、阻力指数。

Based on the Laser Doppler technology, Information technology, Image Recognition and Process tenology, the laser image characteritics of ultra-fine and non-spherical particles are studied. The laser image recognition method based on neural network theory are obtained. The associated hardware and computer software for analysis of the shape characteristics are developed. The shape characteristics of typical particles such as fire smoke particle and carborundum are studied by using such method. The results of this project are useful to develop the new reliable, accurate and rapid experimental diagnoses technology.

本项目综合应用激光多普勒技术、信息技术和计算机图像识别处理技术，研究了非球形超细微粒的激光影像形成规律，建立了基于神经网络理论的粒子形状特性测量方法并发展了相应的硬件系统及其计算分析软件，并利用该系统研究了火灾烟雾颗粒、金刚砂等典型非球形超细微粒的形状特性，已初步形成了可靠、准确、快捷的新型实验诊断方法，为进一步发展实用的非接触诊断技术提供条件。

Methods Color Doppler ultrasound cardiogram were used in 77 cases of hypertension and 56 cases of healthy subject as control group.

选择单纯性高血压患者78例和对照组56例进行多普勒超声心动图检测。

Abstract］ objective to study the changes of right ventricle and flow of pulmonary artery of hypertension.methods color doppler ultrasound cardiogram were used in 77 cases of hypertension and 56 cases of healthy subject as control group.

摘要］ 目的探讨高血压病时右心室及肺动脉血流的改变。方法选择单纯性高血压患者78例和对照组56例进行多普勒超声心动图检测。

All patients received ultrasonic cardiograph and their TDI-Tei and pulsed-wave Doppler tissue imaging indexes were examined.

分别应用组织多普勒和脉冲多普勒检测Tei指数。

Methods Fifty patients with HFRS and 30 normal cases as control were examined by Doppler Ultrasonic Cardiography at acute as well as recovery phase.

应用多普勒超声随访观测50例急性期、恢复期HFRS患者及30例正常对照组的心脏解剖结构及心脏功能。

Must have Coordination and negotiation skill, flexible ideas, and be punctilious person.

必须具备较好的协调与谈判能力，头脑灵活，工作认真仔细

Result: 18 patients are all with simple eye.The pigment mole lies in nasal and temple sides of the ball conjunctiva,in which 2 lie in lacrimal caruncle and semilunar plica.

结果：18例患者均为单眼，色素痣大多数位于内外侧睑裂部球结膜面，2例位于泪阜及半月皱襞，经激光治疗后，10例色素痣消失，有5例行再次激光后消失，2例行第三次激光后消失，1例第四次激光后消失。