1) hydrodynamic focusing
水力聚焦
1.
This paper presents a micro flow cytometer with a 2D hydrodynamic focusing and a micro-weir effect capable of concentrating particles/cells in the center of a sample stream for high-precision particles/cells counting.
本研究提出一种新式的微型细胞颗粒计数器,此微型细胞颗粒计数器结合二维水力聚焦及微文件流结构(m icro-weir structure)于微管道中,可进行高精确度及均一性的细胞或颗粒计数,本研究是利用简单的等向性(isotropic)的湿式蚀刻技术来制作微文件流结构于玻璃基材上,而此微型细胞颗粒计数器的主要构成的组件包含二维边鞘流的聚焦结构,其主要功能为将细胞或颗粒聚焦于X-Y平面上,而微文件流结构的目的在于将细胞或颗粒在Z方向的筛选,最后利用雷射诱导荧光系统将细胞或颗粒侦测出。
2.
Sample confinement is accomplished using hydrodynamic focusing by sheath liquid,and the 10μm of sample width is achieved.
采用聚二甲基硅氧烷(PDMS)材料制作微流控流式细胞计数芯片,利用负压驱动与鞘液夹流技术实现样品的水力聚焦,达到了10μm的样品聚焦宽度。
2) brute force focusing
强力聚焦
3) water immersion focusing
水浸聚焦
1.
By using water immersion focusing method in an ultrasonic C-scan inspection system,the quality of Cu/steel surfacing weld was evaluated.
采用水浸聚焦超声C扫描成像的检测方法,研究了铜钢堆焊接头的质量评价。
4) water immersion focus
水浸聚焦
1.
According to the principles of geometrical acoustics, deduces focusing distance calculation formula when water immersion focus probe detects in ultrasonic detection, analyzes the rightness of the formula, at the same time analyzes using condition of experienced similar formula referred by relevant papers and factors affecting focusing distance errors.
根据几何声学的原理,推导了超声波检测中水浸聚焦探头探测工件时焦距的计算公式,并分析了所导出公式的正确性,同时也分析了有关文献提出的经验近似公式的使用条件和影响焦距偏差的因素。
5) hydraulic decoking
水力除焦
1.
The hydraulic decoking system of the delayed coking unit in Nanjing Refinery was revamped by adding a high-pressure water pump and a program control system.
对南京炼油厂延迟焦化装置水力除焦设施进行改造,增加一台高压水泵及程序控制系统,提高了切焦效率及系统的安全性,确保了装置长周期正常运行。
2.
Hydraulic decoking cutter displacements real time monitoring system is an essential component of programmable control system of hydraulic decoking method in delayed coking unit, which has very important significance for efficiency, quality and safety of decoking task.
水力除焦钻具位移实时监测系统是延迟焦化装置水力除焦程序控制系统的一个重要组成部分，对除焦作业的效率、质量和安全具有十分重要的意义。
6) hydraulic decoking
水力清焦
补充资料：冲击波聚焦效应