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김현아(H.A.Kim),권강민(K.M.Kwon),박한일(H.I.Park),정원대(W.D.Jung),곽한완(H.W.Kwak) 한국해양환경·에너지학회 2006 한국해양환경·에너지학회 학술대회논문집 Vol.2006 No.-
위터젯(water jet)은 해저면의 케이블 및 파이프라인 매설을 위한 굴삭용으로 사용되고 있는 공법이다. 워터젯을 이용한 굴삭 장비의 경우 노즐의 기능에 따라 굴삭 능력이 좌우되므로 노즐 부분의 설계가 중요하다. 특히, 노즐의 형상 설계와 노즐 기능을 향상 시킬 수 있는 분류기(ejector)의 설계는 굴삭 효과에 직접적으로 영향을 미친다. 본 논문에서는 해저 지반 굴삭장비 설계 중 노즐 설계에 관한 기초 연구를 실시하였다. 먼저 노즐 설계에 영항을 미치는 요소를 살펴본 후, 국내ㆍ외에서 사용되고 있는 워터젯 굴삭장비에 대해 조사를 하려다 그리고 각 장비의 단점을 극복할 수 있도록 새로운 형태의 노즐을 고안하였다.
유권상(K. S. Ryu),김철기(C. G. Kim),김중복(J. B. Kim),김현아(H. A. Kim) 한국자기학회 1996 韓國磁氣學會誌 Vol.6 No.1
We have constructed a displacement sensor for measuring dynamic magnetostriction of an amorphous ribbon under alternating magnetic field using fiber optic Fabry-Perot interferometer. The signal of the sensor was dependent on the index matching oil and the optical isolator. The resolution of the sensor was 30 Å and the measured peak to peak magnetostriction of the amorphous ribbon Fe_(81)B_(13.5)Si_(3.5)C₂ was 28×10^(-6).
중년 남성의 폐경 지식, 폐경 태도가 배우자 지지에 미치는 영향
김보영,김예진,김일하,김현아,박희진,서민유,안별,양채미,장진영,조은희 이화여자대학교 간호과학대학 2014 이화간호학회지 Vol.- No.48
Purpose: The purpose was to investigate the relationship between middle-aged men’s menopausal knowledge, menopausal attitude and their support for spouses with menopause. Methods: A correlational descriptive design was used. A convenience sampling was used. The participants were middle-aged men living in Korea(n=150). The instruments of the Knowledge of Menopause Scale, the Attitude of Menopause Measurement and the Spouse Support Scale were used. Result: Multiple regression analysis was performed. The middle-aged men’s menopausal knowledge have positive relationship with their attitude and support for their spouses with menopause. Also, the middle-aged men’s menopausal attitude have positive relationship with support for their spouses with menopause. Conclusion: The study concluded that the higher middle-aged men’s menopausal knowledge and the more positive middle-aged men’s menopausal attitude lead to the more their support on spouses with menopause. Therefore middle-aged men’s spouse support is necessary to improve quality of middle-aged woman’s life with menopause and their mental health, and further studies are also required to confirm.
Casein을 이용한 Calcium Phosphopeptide 제조에 관한 연구
이수원,김현아 성균관대학교 생명공학연구소 2000 生命工學硏究 Vol.6 No.1
The economical producing method of casein phosphopeptide and the physicochemical properties related to the solubilization of calcium were studied. Firstly, the compositions of the purified CPP-Ⅲ were 13.1% of nitrogen, 2.3∼2.4% of phosphate and the ratio of N/P was 5.4∼5.6. In consideration of economic aspects, the preparation method of the CPP-Ⅰ and Ⅱ which were lower purity than the CPP-Ⅲ was established. The physico-chemical property of the CPP was compared with the enzymically dephosphorylated CPP. CPP and polyglutamate effectively inhibited the formation of insoluble calcium phosphates at physiological pH.
Fabry-Perot 광섬유 간섭계를 이용한 비정질 리본의 자기변형율 측정
柳權相,金哲基,金重福,金賢兒 경북대학교 센서기술연구소 1995 센서技術學術大會論文集 Vol.6 No.1
We constructed the displacement sensor for measuring the magnetostriction of an amorphous ribbon using fiber optic Fabry-Perot interferometer, where the ac magnetic field was applied by the Helmholtz coil. The resolution of the sensor is 30 Å and the dynamic magnetostriction of the amorphous ribbon Fe_(81)B_(13.5)Si_(3.5)C_(2) is measured to be 28 x 10^(-6).