메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

논문 기본 정보

자료유형
학술대회자료
저자정보
이정엽 (포항공과대학교) 이상준 (포항공과대학교)
저널정보
한국가시화정보학회 한국가시화정보학회 학술발표대회 논문집 2008년도 한국가시화정보학회 추계학술대회
발행연도
2008.12
수록면
8 - 11 (4page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

초록· 키워드

오류제보하기
The micro circulation system which is distributed in the entire body plays an important role in maintaining the metabolism and transport nutrients and wastes. In addition, the hemodynamic characteristics of blood flow such as wall shear stress and flow rate are important factors that affect angiogenetic process and control the vasomotion and dilatation of the vessel adaptively. These factors of blood flow in the micro circulation system are crucial in the development of the cardiovascular system as well as for the proper functioning of an organism, especially when the blood flow is related to circulatory diseases. Moreover, the structural characteristics of blood vessels (Murray’s law and bifurcation pattern) are significantly influenced by blood flow. Therefore, it is important to measure the blood flow in vivo and determine its relation to the structural rules of the vessel. In this study, we measured the blood flow in the extraembryonic arterial blood vessels of chicken embryos and correlated the hemodynamic characteristics and the structural rules of the vessels along the bifurcation cascade. Blood flow was measured using a micro-PIV technique and the temporal characteristics of the flow were obtained using a high-speed CMOS camera. The mean velocity in the arterial blood vessels was observed to decrease and Womersley number (α) calculated based on the pulsating frequency and diameter of the vessel also decreased as the bifurcation cascaded. The ratio of Murray’s law (= D?³/(D₁³ + D₂³), where D?, D₁, and D₂ are the diameters of the parent and two daughter vessels, respectively) was very close to the theoretical value of 1 when the vessel diameter was small (50 ㎛ ≤ D? ≤ 100 ㎛). However, the value deviated from 1 as D? increased. The bifurcation angles were wider when the D? was smaller and became narrower as D? increased. These results indicate that Poiseuille’s formula is best approximated for smaller vessels (when Womersley number approaches to zero).

목차

Abstract
1. Introduction
2. Methods and materials
3. Results and discussion
4. Conclusion
Acknowledges
References

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2012-505-004363392