Gene expression studies are important for understanding gene regulation, deducing cell signal cascades, etc. More broadly, these studies are often used to understand disease development, as specific genes are commonly up regulated in clinical pathologies. These studies can be paired with the application of a mechanical stimulus as well; for example, endothelial cells can be exposed to a defined fluid flow (physiological or pathological) in order to understand the possible mechanisms for atherosclerosis development. 德國LaVision PIV/PLIF粒子成像測速場儀 Imager SX PIV相機(jī) 用于粒子成像測速(PIV)的熒光示蹤粒子