http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 김윤환 (검색결과 605 건)
- 무료
- 기관 내 무료
- 유료
-
-
자연 친화적 하천정비를 위한 호안평가기법의 개발 및 적용
김윤환,박남희,진영훈,김철 한국수자원학회 2007 한국수자원학회논문집 Vol.40 No.12
과거 치수적 목적에 의해 진행하던 하천정비방식이 최근에 친환경적 개념의 정비방식으로 전환되면서 하천살리기 운동을 비롯해 하천의 환경기능을 개선하려는 노력이 진행중이며 전국적으로 자연형 하천정비 또는 친환경적 하천 복원 등의 사업이 활발히 시행되고 있다. 호안공법 또한 자연형 하천정비 개념의 도입이후 다양한 호안공법이 시공되고 있는 상황에서 보다 적합한 호안공법의 적용을 위해서는 하천의 환경특성을 고려할 필요가 있다. 따라서 본 연구는 자연 친화적 하천정 Recently, existing river improvement methods for flood control purpose have changed into nature friendly river improvement methods and the efforts to improve the river environment including river restoration have been made, and close-to-nature river impro
-
-
-
金允煥 고려대학교 의과대학 1988 고려대 의대 잡지 Vol.25 No.1
The hepatic artery and portal vein were embolized with absolute ethanol in 26 New Zealand White rabbits to compare hepatic arterial embolization group with portal vein embolization group. Follow-up arteriography, portography, liver function test, retrograde cholangiography, microangiography, and pathologic examination were performed. The results were as follows: 1. Sequential hepatic arteriography showed successful and persistent occlusion of intrahepatic arteries at different levels, and reconstitution of the intrahepatic arterial circulation via collaterals on hepatic arterial embolization group, but on portal vein embolization group, no remarkable abnormal finding of hepatic arteriography was noted, except for complete obstruction of lobar hepatic artery of one case 2. Sequential portography showed successful and persistent occlusion of intrahepatic portal veins on portal vein embolization group, but on hepatic arterial embolization group, normal protograms were noted. 3. Sequential liver function test showed elevation of SGOT and SGPT at 2 days and 1 week after embolization, and returned to normal LFT at 4 weeks, but no specific difference between two groups was noted. 4. Retrograde cholangiography revealed findings of cholangitis on involved segment on both hepatic artery and portal vein embolizatlon groups. 5. Microangiography revealed avascular area in most of cases on each groups. But in incompletely infarcted area there showed tortuous hepatic arteries, decreased perfusion of sinusoid and microcollaterals through the interlobular arteries, capsular arteries and peribiliary vascular plexus on hepatic artery embolization group. On portal vein embolization group. tortuous and decreased perfusion of sinusoid were noted , but microcollaterals were relatively less developed. 6. On microscopic findings, no remarkable difference between two groups was noted. 7. The absolute ethanol was certainly effective for permanent occlusion of intrahepatic arteries and portal veins but caused damage on sinusoid & hepatic parenchyme, and on peribiliary vascular plexus resulting in sclerosing cholangitis on both groups. So, for further clinical application, caution would be necessary to superselect the tumors supplying artery & portal vein to avoid unnecessary parenchymal damage.
-
-
-
-
-
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
