查询词典 Doppler shift

A new approach to eliminate the ranges dependence based on angular frequency shifting in space domain was presented, in which, the nonhomogeneity of clutter is removed and the blind area of target detection is reduced due to the fact that the clutter of all the compensated range cells in every channel is moved to the place of the clutter of the desired cell by the different angular frequency shifts being added into spatial data along all Doppler channels for every compensating range cell.

第七章针对非正侧视相控阵机载雷达，由于杂波在距离上呈现出严重的非均匀性，尤其是在近程这种依赖距离的杂波谱呈现的非均匀现象更为严重，使得用于计算自适应权的协方差矩阵不可能直接由距离单元数据统计平均来估计得到，否则STAP处理及其降维技术难以获得理想的杂波抑制性能和目标检测性能，甚至恶化。

So the Poynting vector and wave vector are antiparallel, consequently, the light is refracted negatively, and also there are many other unusual behaviors in LHM like reverse Cerenkov radiation, contrary Doppler effect etc.

所以近年来有关左手材料的研究受到了广泛的关注。2002年，科学家们发现当光波以一定角度入射到在光子晶体界面上时，光波在光子晶体中的传输也会出现和在左手材料中相同的现象：比如负折射和超透镜现象。

The color Doppler ultrasound examination is conductive for diagnosis of oliguresis or anuresis.A good curative effect could be achieved using active waiting therapy in the treatment of oliguresis or anuresis.

彩色多普勒超声对诊断移植肾后少尿或无尿有较大帮助，采用此法治疗移植肾术后少尿或无尿取得较好效果。

All of them were anuria and excluded rejection,and the color Doppler ultrasonic showed blood supplies of the grafts were well.

对25例肾移植术后无尿，临床完全排除排斥反应，而移植肾血液供应良好的病人进行临床观察治疗。

We conclude that postbiopsy anuria associated with a subcapsular hematoma and acute absence of diastolic flow on doppler ultrasound should be considered pathognomonic of APK.

我们总结认为，活检后无尿合并包膜下血肿与多普勒超声检查提示急性移植肾舒张期无血流时应该考虑APK的特异病症。

Purpose of color Doppler flow imaging of atherosclerosis of the renal artery stenosis and the value of coronary artery ARAS in contrast with the prevalence rate and related factors.

目的 探讨彩色多普勒超声诊断动脉粥样硬化性肾动脉狭窄的价值，以及冠状动脉造影患者中ARAS的患病率及其相关因素。

Fifteen patients of ARAS documented by renal angiography were assessed by color Doppler ultrasonography and captopril-enhanced renography.

对15例造影证实的肾动脉狭窄患者行彩色多普勒超声和开博通肾图检查。

Objective To explore the value of color Doppler ultrasonography in diagnosis of arterial occlusion disease in lower limbs.

目的 探讨彩色及频谱多普勒技术在诊断下肢动脉闭塞性疾病的价值。

Objective: To Discuss the clinical application value of duplex colour Doppler sonography in the diagnosis of giant cell arteritis.

目的：探讨双功能彩色超声检查在诊断巨细胞动脉炎中的临床应用价值。

Objective To study the endothelium-dependent dilation function in patients with Takayasu arteritis by color Doppler ultrasound.

目的 利用高分辨力超声技术对大动脉炎患者的血管内皮依赖性舒张功能进行研究和分析。

I had a lovely dog named PiPi, he was one of my best friends.

我曾经有过一只小狗，它的名字叫皮皮，它很善良，它是我最忠实的朋友。

Newly ovulated mouse oocytes were cultured in the CZB medium supplemented with different concentrations of pyruvate before treated for activation or assayed for MPF activity.

我们猜测卵母细胞在不含丙酮酸的条件下老化的更快，并且卵丘细胞可能通过消耗不含葡萄糖的CZB中的丙酮酸从而促进卵母细胞老化。