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논문 기본 정보

자료유형
학술대회자료
저자정보
Yong-Seok Choi (포항공과대학교) Sang-Joon Lee (포항공과대학교)
저널정보
대한기계학회 대한기계학회 춘추학술대회 대한기계학회 2009년도 추계학술대회 강연 및 논문 초록집
발행연도
2009.11
수록면
2,260 - 2,263 (4page)

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이 논문의 연구 히스토리 (2)

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Three-dimensional (3D) motion of red blood cells (RBCs) in a micro-tube was measured by using a digital holographic microscopy (DHM). The measurement volume was about 600×350×350㎛3. Human RBCs were mixed with blood plasma at a hematocrit of 0.05% and supplied into the tube of 350㎛ inner diameter using a syringe pump. The Reynolds number based on the inner diameter was approximately unity. The tube made of FEP material was immersed into water to eliminate the refractive image distortion. Digital hologram images were consecutively recorded with a high-speed CMOS camera. He-Ne laser and 20× (NA=0.50) water immersion objective lens was employed. 3D spatial distribution of RBCs information was numerically reconstructed by employing the angular spectrum method. For the precise detection of the depth-wise blood cell position, several methods based on autofocus functions were evaluated. By using the squared Laplacian method which yields the smallest depth-of-focus, the depth-wise positions were extracted within a RMS error of 4㎛. As a result, the typical trajectories as well as 3D velocity profiles of RBCs were measured and discussed.

목차

Abstract
1. Introduction
2. Methodology
3. 3D tracking of RBCs
4. Summary and conclusion
Acknowledgment
References

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UCI(KEPA) : I410-ECN-0101-2009-550-019133080