Development of Particle Image Velocimetry method for collective cell migration analysis

Author(s):  
Takafumi KOMODA ◽  
Michiko SUGAWARA ◽  
Takumi HANZAWA ◽  
Tatsuya MIYAMA ◽  
Makiko NONOMURA ◽  
...  
Author(s):  
Takumi HANZAWA ◽  
Tatsuya MIYAMA ◽  
Shun ISHIDA ◽  
Makiko NONOMURA ◽  
Jun NAKANISHI ◽  
...  

2013 ◽  
Vol 50 (5-6) ◽  
pp. 311-326 ◽  
Author(s):  
Carmine Senatore ◽  
Markus Wulfmeier ◽  
Ivan Vlahinić ◽  
Jose Andrade ◽  
Karl Iagnemma

2013 ◽  
Vol 135 (3) ◽  
Author(s):  
Alinaghi Salari ◽  
M. B. Shafii ◽  
Shapour Shirani

Microbubbles are broadly used as ultrasound contrast agents. In this paper we use a low-cost flow focusing microchannel fabrication method for preparing microbubble contrast agents by using some surface active agents and a viscosity enhancing material to obtain appropriate microbubbles with desired lifetime and stability for any in vitro infusion for velocity measurement. All the five parameters that govern the bubble size extract and some efforts are done to achieve the smallest bubbles by adding suitable surfactant concentrations. By using these microbubbles for the echo-particle image velocimetry method, we experimentally determine the velocity field of steady state and pulsatile pipe flows.


Author(s):  
Jae-Young Lee ◽  
Sa-Ya Lee

The flow visualization in the complicated flow geometry of the pebble bed of the high temperature gas-cooled reactor is investigated to identify the stagnation points at which internal hot spots are expected. A particle image velocimetry method was employed to visualize flow for the pebble bed in the structure of the face centered cubic. The wind tunnel was designed to provide the same Reynolds number of 2.1614×104 as the pebble bed nuclear reactor. Scaling law determined the diameter of the pebble as 120 mm, which is two times bigger than the reference when we use air as a coolant rather than helium. The present scaled up design reduces the load of high speed imaged acquisition and the flow field measured by 4000 frames/s. It was found that the present method identified flow field successfully, including the stagnation points suspected to produce hot spots on the surface of the pebble bed. The present data are useful in evaluating the three-dimensional computational fluid dynamics analysis.


2007 ◽  
Vol 121 (5) ◽  
pp. 3137-3138 ◽  
Author(s):  
Sid Khosla ◽  
Shanmugam Murugappan ◽  
R. R. Lacham Raju ◽  
Ephraim J. Gutmark

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