-
RISS 활용도 분석
-
일본/중국/유럽자료
-
최신/인기 학술자료
-
해외논문구매대행(E-DDS)
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 : 金承煥 (검색결과 1,362 건) 검색분석정보 보기
- 무료
- 기관 내 무료
- 유료
-
-
-
-
김승환,Kim, Seung-Hwan 한국도서관협회 1975 圖協月報 Vol.16 No.7
본고는 1975년도 연세대학교 교육대학원 사서교육전공 석사학위논문의 요약이다.
-
인화성 2성분계에서 발화온도에 의한 발화지연 시간의 예측
김승환,이주헌,유승돈,하동명 한국화재소방학회 2018 한국화재소방학회 학술대회 논문집 Vol.2018 No.추계
'스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.
-
The Number of Endothelial Progenitor Cells is Decreased in Patients With Non-Dipper Hypertension
김승환,김남호,Yong Kwon Kim,Jong Hyun Yoo,Seong Nam Shin,고점석,Yun Kyeong Kim,이상재,윤경호,이은미,유남진,오석규,정진원 대한심장학회 2012 Korean Circulation Journal Vol.42 No.5
Background and Objectives: Circulating endothelial progenitor cells (EPCs) play a key role in the maintenance of endothelial homeosta-sis and promote vascular repair. A reduced number of EPCs and the functional activity have been associated with several cardiovascular risk factors. However, the relationship between the number of EPCs and circadian rhythm of the blood pressure (BP) remains unclear. The purpose of the present study was to evaluate the relationship between the circadian rhythm of the BP and EPCs in patients with essential hypertension. Subjects and Methods: A total of 45 patients with essential hypertension who were newly identified by outpatient BP measurements,underwent 24-hour ambulatory BP monitoring. Among the 45 patients with essential hypertension, 20 were classified as dippers (12 men and 8 women; mean age 48±14 years) and 25 as non-dippers (14 men and 11 women; mean age 52±18 years). The EPC count was isolated from the peripheral bloodstream and quantified by flow cytometry. Results: The baseline clinical characteristics were similar between the dipper and non-dipper hypertensive patients. The circulating EPCs were statistically reduced in the non-dipper patients as compared to the dippers (104±60 vs. 66±47 EPCs per 106 mononuclear cells,p=0.027). The circulating EPC level correlated positively with the circadian changes in the systolic and diastolic BP (r=0.435, p=0.003, and r=0.310, p=0.038, respectively). Conclusion: The present study demonstrated that the EPC count was reduced in the peripheral bloodstream in non-dipper hypertensive patients.
-
김승환 대우재단 2020 지식의 지평 Vol.- No.29
'스콜라' 이용 시 소속기관이 구독 중이 아닌 경우, 오후 4시부터 익일 오전 7시까지 원문보기가 가능합니다.
-
-
김승환,김동성,Kim, Seung-Hwan,Kim, Dong-Sung 대한의용생체공학회 2011 의공학회지 Vol.32 No.3
Virtual colonoscopy is favored over conventional colonoscopy because its non-invasive procedure can avoid complications that may happen in a conventional approach and because it can cleanse colon electronically instead of uncomfortable conventional colon cleansing. Electronic Colon Cleansing(ECC) has to deal with not only removing tagged fecal material but also recovering Partial Volume Effect(PVE) due to tagging material. This paper proposes an ECC method restoring inherent natural PVE while previous approaches focused only on reducing PVE due to tagged fecal material. The proposed method reduces PVE using 3-dimensional adaptive density correction and then replaces tagged fecal material into air. Next, it generates natural PVE for the replaced air adjacent to soft tissue and finally makes smooth transition of gray values for soft tissue adjacent to the replaced air. The proposed method applied to eleven patient data, and showed promising results.
-
김승환,홍대희,김대호,김봉석,황정훈,박창우 제어로봇시스템학회 2010 제어로봇시스템학회 합동학술대회 논문집 Vol.2010 No.12
This paper suggests a low cost finger joint torque sensor which can be easily attached to each joint of a finger. Initial finger torque sensors are generally installed at the finger tip and intermediate link torque cannot be measured. We design a new finger joint torque sensor that can be fully integrated with a motor in order to measure a torque exerting a any location of a robot finger. The design of sensor body is optimized through the structural body analysis. We can control robot finger using developed joint torque sensor.
