Objective To investigate ultrasonic features of pyelic separation of normal fetus and its changes with gestation .

目的探讨正常胎儿肾盂 分离现象的 超声表现及其变化。

Study on Extraction of Total Flavonoids from Tartary Buckwheat Seedling Using Ultrasonic Coupled with Propyl Alcohol-Ammonium Sulfate Aqueous Two-phase Separation and Antioxidant Activity of Total Flavonoids Extract

超声集成丙醇-硫酸铵双 水相体系从苦荞麦苗中提取总黄酮及其抗氧化活性研究

By the undisturbed soil sampling and soil particle size fractionating with ultrasonic separation distribution of heavy metals in soil particle size fractions in major paddy soil type in the Tai Lake region China was studied .

采用原状土样 分离 技术，研究了太湖地区几种主要水稻土不同颗粒中重金属元素Pb、Cr、Cd的分布。

Study of using in-situ ultrasonic measurement technique in membrane separation

超声监测技术在膜 分离过程中的应用研究

Objective To evaluate the safety of ultrasonic standing wave blood separation technology from two point of view : rheology and blood cell composition .

目的：从血液流变学和血细胞成分两方面来评价 超声驻波血细胞 分离机的安全性。

Ultrasonic online tracking of reaction-induced phase separation

反应诱导相 分离过程的 超声波在线跟踪

We developed a method for the determination of trace semi-volatile organic compounds ( SVOC ) in soil by ultrasonic extraction column separation and gas chromatography-mass spectrometry ( GC-MS ) .

利用 超声提取、吸附色谱 分离以及气相色谱和气质谱联用的方法对土壤中痕量半挥发性有机污染物进行了提取、分离以及定性定量分析。

Study on Preparation Device for Pesticide Residues Analyse by Ultrasonic and Chromatographic Separation Technology ; Detection of Semi-volatile Organic Contaminant in Influent and Effluent from Municipal Sewage-Treatment Plant with Auto-trace Extraction Workstation

超声萃取&色谱 分离农残检测样品前处理方法及装置研究固相萃取工作站-气相色谱法测定污水处理厂进出水中有机污染物

The advanced oxidation electrocatalysis oxidation supercritical water oxidation ultrasonic degradation and membrane separation technology that are being studied and developed at present although they aren 't perfect enough can be taken for green technology of water treatment .

目前正在研究开发的高级氧化技术、电催化氧化法、超临界水氧化法、 超声波降解技术及 膜 处理技术虽然尚有不够完善之处，但可认为是绿色水处理技术。

A bidirectional ultrasonic Doppler for blood flow velocity measurement with direct single-sideband separation

单边带直接 分离式双向 超声多普勒血流检测

The studies of the affects of ultrasonic standing waves on blood were aiming to produce a practicable method of ultrasonic blood cell separation trying to find an effective and cheap method of auto-transfusion and preparing blood products .

本论文关于 超声驻波在血液方面的研究旨在提出一种实用的血液 分离方法，为现代医学中的自体血液回输、血液制品制备等找到一种价格低康、性能优异的有效方法。

Effects of Ultrasonic Separation of Particles from Flowing Fluid

流动液体中粒子的 超声 分离实验研究

Study and Progress in Intensified Ultrasonic Treatment of Membrane Separation and Cleaning

超声波强化膜 分离及清洗的研究进展

Methods 10 valve replacement patients ′ residual blood after cardiopulmonary bypass ( CPB ) were collected . Ultrasonic standing wave blood separation and centrifugal Cell Saver technology were used to separate blood respectively .

方法：10例心脏瓣膜替换术患者，采其体外循环结束后的机器余血，分别用 超声驻波血细胞 分离机和离心式洗血球机洗涤分离。

And it is operated to analyze the structure model of multi layered resonator for ultrasonic separation and the transmission of ultrasonic in multi medium . The equivalent circuit of micro separator is present . The characteristic of MEMS ultrasonic separator based on plane standing wave is discussed . 2 .

介绍了微 分离器的多层谐振结构模型和 超声波在多层介质中传播的情况，利用 声电类比分析了微分离器的声电等效电路，并研究了基于平面驻波模式的MEMS超声分离器特点。

Determination of Pesticide Residues in Citrus by Ultrasonic Extraction Adsorption Separation and Gas Chromatography

超声提取吸附 分离气相色谱法测定柑桔中农药残留

Application of low-frequency ultrasonic technique to separation of effective components from leaves of Eucommia ulmoides

低频 超声技术在杜仲叶有效成份 分离提取中应用

A method using ultrasonic extraction combined with separation by HPLC was established for the simultaneous determination of 16 PAHs in marine sediments .

建立用 超声波 萃取-高效液相色谱法同时检测海洋沉积物中16种优先监控的多环芳烃（PAHs）的方法。

Method ultrasonic dynamic observation of thickness and appearance of fetal pyelic separation is applied .

方法应用 超声动态观察胎儿肾盂 分离的厚度及形态，同时仔细探查膀胱及输尿管。

A new process involving ultrasonic separation of electrode materials acid dissolution precipitation of cobalt and lithium has been applied to recover metals values from spent lithium-ion batteries .

采用 超声波 分离电极材料-酸浸-钴锂沉淀新工艺分离并回收了废旧锂离子电池中的有价金属。

Conclusion Ultrasonic standing wave blood cell separation technology is safe and reliable and is similar to centrifugal blood separation method .

结论： 超声驻波血细胞 分离 法与离心分离法相似，安全、可靠。

Methods Capillary column gas chromatography-mass spectrometry ( GC / MS ) and selected ion recording ( SIR ) coupled with ultrasonic extraction and column chromatographic separation techniques were used .

方法采用毛细管柱气相色谱质谱联机分析及选择离子检测技术，结合 超声波溶剂提取和柱层析 分离方法。

Computer simulation study on noise cancellation for ultrasonic signals based on blind source separation

基于盲源 分离 的 超声信号去噪的仿真研究

Collecting recombinant bacterias and ultrasonic crushing centrifugal we found that the purpose protein in precipitation . It illustrated that he purpose protein was expressed in form of IB with no activity needing renaturation to separation and purification .

离心收集重组体菌体， 超声波破碎离心，发现沉淀中含有目的蛋白，说明目的蛋白以包含体的形式表达，没有活性，需要复性才能 分离纯化。

A coupled pretreatment technique ultrasonic and adsorption separation was investigated for pesticide residues in tea prior to gas chromatography determination .

将 超声 提取-吸附 分离的预处理技术用于气相色谱法检测茶叶中的农药残留。

A SINGLE-CHIP MICROCOMPUTER AUXILIARY DISPLAY SYSTEM FOR ULTRASONIC DIAGNOSTIC INSTRUMENTS Triamcinolone acetonide-assisted vitrectomy to visualize the residual vitreous cortex after surgical posterior vitreous separation

超声诊断仪单片 微机辅助显示系统

Due to rapid development of MEMS technology over the past 20 years the microdevices have great advantages in the volume weight and cost price with the aid of MEMS technology which brings up brand-new methods in designing and fabricating ultrasonic separation devices .

随着MEMS技术的迅速发展，采用微制造技术制造的MEMS器件在体积、重量、成本等方面，都具有十分明显的优势，这为 超声 分离器件的设计和制造带来了全新的思路。