Simultaneous Laser-Induced Fluorescence And Contactless-Conductivity Detection For Microfluidic Chip

A combined detection system involving simultaneous LIF and contactless-conductometric measurements at the same place of the microfluidic chip was described. The LIF measurement was designed according to the confocal principle and a moveable contactless-conductivity detector was used in (CD)-D-4. Both measurements were mutually independent and advantageous in analyses of mixtures. Various experimental parameters affecting the response were examined and optimized. The performances were demonstrated by simultaneous detection of Rhodamine B. And the results showed that the combined detection system could be used sensitively and reliably. (C) 2008 Yong Yu. Published by Elsevier B.V. on behalf of Chinese Chemical Society. All rights reserved.

关于湍流中术语Coherent Structure的中文译法

<正> 中文术语“拟序结构”来源于湍流研究中的英文术语“coherent structure”。 70年代初,对剪切层和自由射流的实验观察发现,这些湍流流动中存在着大尺度的涡旋结构。当初他们称之为大尺度“序的(ordered)”或“有组织的(organized)”结构,它对剪切流如混合层,边界层、射流和尾流的早期发展起着决定性的作用。1974年3月26—29日在英国Southampton召开的专题讨论会上,不少学者称之为“coherent