该词条未找到_海词词典

您要查找的是不是：

ABSTRACT> It is indicated experimentally that the receiving transducer in pulsed Doppler system should possess a broad band to get complete information about blood flow. 本文用实验方法证明,超声脉冲多普勒系统的接收换能器应有宽的频带,才能获得血流信息的全貌。
pulsed doppler system [电] 脉冲多普勒系统
It is indicated experimentally that the receiving transducer in pulsed Doppler system should possess a broad band to get complete information about blood flow. 本文用实验方法证明,超声脉冲多普勒系统的接收换能器应有宽的频带,才能获得血流信息的全貌。
Discuss techniques of avoiding spectrum aliasing of the PW Doppler system. 讨论怎样避免PW多谱勒系统的频谱混叠。
The detective ability of airborne pulsed Doppler radar is often greatly degraded in active jamming environment. 摘要在有源干扰下，机载脉冲多普勒雷达检测性能往往受到严重影响。
RVOT blood flow parameters were measured with pulsed Doppler echocardiography (PW) for every case. 用脉冲多普勒超声(PW)测量各组病例RVOT血流频谱有关参数。
Abstract: The main functions and performance parameters of the IFD Receiver for CINRAD/CB Pulsed Doppler Weather Radar are presented. 文章摘要: 介绍CINRAD/CB脉冲多普勒天气雷达数字中频接收机的主要功能和技术性能.
The main functions and performance parameters of the IFD Receiver for CINRAD/CB Pulsed Doppler Weather Radar are presented. 介绍CINRAD/CB脉冲多普勒天气雷达数字中频接收机的主要功能和技术性能。
Methods: The all data were collected through temporal window by TCD using pulsed Doppler (2MHZ) in HAPE patients identified in clinic. 方法:将已确诊的HAPE患者,与颞窗通过低频脉冲多普勒(2MHZ),获得颅内脑底动脉环上的主要动脉的多普勒超声频移信号,进行TCD检测。
Methods:M mode echocardiography and pulsed Doppler were used to obtain the variable of fetal cardiac structure and function in diabetic pregnancies. 方法:应用超声心动图测量糖尿病孕妇胎儿心脏结构与功能的各项指标及其与不同孕周之间的关系。
Demonstrating the reliability and accuracy of the Doppler system, the rotation ofan electromotor and the reciprocating motion of an accelerometer calibrator aremeasured first. 测量了电动机转轴转速和加速度计校准仪的往复振动,验证了实验系统的可靠性和准确性。
Finally, pulsed Doppler was used to collect spectra and measure the peak systolic velocity （PSV）, end- diastolic velocity, resistance index and pulsate index. 最后用脉冲式多普勒采集频谱，测量收缩期峰值血流速度、舒张末期血流速度、阻力指数和搏动指数等。
Oki T,Tabata T,Yamada H,et al.Clinical application of pulsed Doppler tissue imaging for assessing abnormal left ventricular relaxation.Am J Cardiol,1997,79(7):921-928. 杨好意邓又斌常青毕小军向慧娟潘敏黎春蕾.;定量组织速度成像和组织追踪法对扩张型心肌病患者左心室收缩功能的研究[J]
Active homing guidance system mostly adopts the pulse Doppler system. Therefore, research has important significance for radar seeker simulation. 主动寻的制导系统大多采用脉冲多普勒体制,因此研究该类型雷达导引头仿真具有重要意义。
Methods：Pulsed Doppler of echocardiography was adopted to determine the diastolic function of the left ventricle in CHD before and after the infusion of Chi Wu Jia. 方法：应用脉冲多普勒超声心动图对冠心病心绞痛患者静脉输入刺五加前后测定左室舒张功能。
Pulsed Doppler ultrasound and color Doppler imaging are not only helpful in differentiate diagnosis with other placental tumor, but can also predict the perinatal outcome. 利用杜卜勒超音波血流侦测与彩色杜卜勒影像不仅可以帮助胎盘绒毛膜血管瘤与其他胎盘良性肿瘤的鑑别诊断，还可以评估怀孕的周产期预后。
The fuze is provided with some Anti-jamming function by means of instantaneous time average zero-over rate representing Doppler signal's frequency of continuous wave radio Doppler system fuze. 用短时平均过零率表征连续波多普勒体制无线电近炸引信多普勒信号频率,使引信具有一定的抗干扰能力。
The blood flow velocity of mitral during early diastole（E）and atrial contraction（A）were also measured by pulsed Doppler echocardiography and E/A ration was calculated. 结果正常组舒张早期峰值速度（E）>左房收缩期峰值速度（A），E/A>1;
Method Left ventricular diastolic function was studied with pulsed doppler echo cardiography before and after vein administration Xinxuetong in angina pectoris patients. 方法：本文应用脉冲多普勒超声心动图对冠心病心绞痛者静脉输入心血通前后的左室舒张功能进行了测定。
Objective To assess the clinical signi ficance on the degree of mitral regurgitation by the use of pulsed doppler echocardiogrphy to examine the pulmonary veins flow. 目的探讨脉冲多普勒肺静脉血流评价二尖瓣返流的程度。