工學院: 機械工程學研究所指導教授: 孫珍理李思緯Li, Si-WeiSi-WeiLi2017-03-132018-06-282017-03-132018-06-282016http://ntur.lib.ntu.edu.tw//handle/246246/278297本研究探討浮游生物K. veneficum (CCMP426) 在不同微觀流場環境下的運動行為。我們利用一微孔穴流元件以方便研究微米尺度下浮游生物的運動行為，並搭配不同的流體驅動裝置，將微觀流場環境分為靜態流場、穩態流場與暫態流場三大部份，而工作流體皆為原培養液f/2-Si。我們計算整個浮游生物族群其個體的運動速度、運動加速度、相對速度、相對角度，並透過相對角度的定義，將浮游生物的運動行為歸為正趨流性、負趨流性與跨流性三類。最後分別計算其機率密度分布函數 (Probability Density Function, PDF)、期望值 (expected value) 和標準差 (standard deviation)，以呈現整個浮游生物族群的運動行為。 實驗結果顯示，在一營養鹽均勻分布的靜態流場中，浮游生物族群之運動速度為52.7±43.5This study focuses on the locomotion of plankton K. veneficum (CCMP426) in a microcavity device under different microfluidic environment: stationary f/2-Si medium, steady flow, and oscillatory flow. After measuring the local flow field, we are able to determine the absolute and relative velocities of individual plankton cells, from which their rheotaxis can be derived. To represent the locomotion of the planktonic community statistically, we also calculate the probability density function, the expected value and the standard deviation. The experimental results show that when the plankton reside in stationary and homogeneous nutrient medium, the swimming velocity and the acceleration are 52.7±43.511285595 bytesapplication/pdf論文公開時間: 2019/7/26論文使用權限: 同意有償授權(權利金給回饋學校)微流元件暫態流場流場交互作用浮游生物運動卡羅藻趨流性microfluidicunsteady flowhydrodynamic interactionplanktonic locomotionKarlodinium veneficumrheotaxisthesis10.6342/NTU201600902http://ntur.lib.ntu.edu.tw/bitstream/246246/278297/1/ntu-105-R03522115-1.pdf