國産高張力鋼의 熔接部의 機械的 性質에 關한 硏究

南勝義,金聖培,金錫胤 弘益大學校 1982 弘大論叢 Vol.14 No.2

A study has been performed on the mechanical properties and the micro-structure of the welded zone in the high tensile steel produced in Korea. The experimental results indicated that the tensile strength and the hardness were increased in welded zone. The micro-structure of the welded zone was finer than that of the base metal. It may be considered that the increase of the mechanical properties is due to the chemical composition of electrode being different from the base metal and to the structure getting finer through the course of solidification.

OOP언어의 Cast 방법에 관한 연구

윤성일,남숭환,이봉하 공주영상정보대학 2002 논문집 Vol.9 No.-

OOP 언어인 Java, C++는 대표적인 객체지향 언어로서 널리 사용되고 있다. 이들 언어의 특징은 c1ass를 이용하며 다양한 cast방법에 의한 효율적인 프로그래밍 작성이 용이하다는 것을 볼 수 있다. 본 연구에서는 cast의 효율적인 설계방법과 작성기법들에 대하여 연구하였다. 클래스를 이용하여 모듈을 세분화 조립하는 경우 프로그램 성능향상에 현저히 드러난다. 또한 프로그램활용 목적에 따라 유용성, 이식성, 확장성 등을 고려하여 시스템을 디자인하는 것이 중요하다는 것이다. 쉬운 조작으로 많은 효과를 이를 수 있는 것이 COP언어의 특징이다. OOP 언어는 또한 컴파일 시간과 실행시간에 리턴하는 값이 다른 경우 프로그램에 치명적인 영향을 미치기 때문에 class를 이용한 casting 방법을 이용하는데 상당한 주의가 요구되는 것을 위의 예로 보았다. 이로서 향후 연구과제는 실행시간 리턴 값, 오브젝트 참조 값, 메모리의 효율적 사용방법을 위해 새로운 cast 연산자들인 const_cast, dynamic_cast, reinterpret_cast, static_cast의 효율적인 기능을 분석하는데 있다.

중고생의 미용인식에 대한 연구 : 헤어 미용을 중심으로

윤은영,김성남 한국패션뷰티학회 2008 한국패션뷰티학회지 Vol.6 No.1

The purpose of the study is to look at the middle and high school student's recognition of beauty Arts. The collected data were analyzed by frequency analysis, factor analysis, reliability test, t-test, correlations analysis, from which the result is as follows. Firstly, the lower levels of beauty art are comprehensive interest, personal interest professional interest, effort type, management type and consumption type. Secondly, Beauty art interest and attitude by gender and school levels showed meaningful difference. Thirdly, there is meaningful correlations between beauty art interest and beauty art attitude.

자바의 실행시간 자료형 인식에 관한 연구

윤성일,남숭환 공주영상정보대학 2001 논문집 Vol.8 No.-

널리 사용되는 언어인 Java, C++는 대표적인 객체지향 언어로서 실행시간 자료형 인식, 클래스 및 상속 등의 객체지향 개념을 지원하고, 실행 시간, 컴파일 시간 자료형 인식을 구현하는 방법들에 대하여 알아본다.

A1-Cu 合金粉末의 燒結品에 關한 時效硬化

南勝義,尹太鴻,趙誠秀 弘益大學校 1985 弘大論叢 Vol.17 No.2

During compaction and sintering premixed Al-Cu powders, the effects of green density, sintering temperature and sintering time on dimensional change and hardness in sintered specimens were discussed and the phenomena of all conditions during age hardening were examined. The specimens were sintered in nitrogen atmosphere at temperatures ranging from 560℃ to 620℃ for 10, 20, 30 and 60 minutes. The dimensional changes of specimens during sintering are occurred in no time as the sintering temperature increased, and the expansion is occurred largely as the green density increased. The magnitude of peak hardness to age hardening is similar to wrought parts.

전기영동에 의한 동양란(Cymbidium spp.)의 단백질 유형비교

윤경은,홍성숙,이남희 서울여자대학교 자연과학연구소 1991 자연과학연구논문집 Vol.2 No.-

본실험은 전기영동을 이용하여 단백질과 동위효소의 유형을 비교 분석함으로 종과 품종을 구분할 수 있는가의 가능성을 조사하고 전기영동에 적합한 난의 부위와 효소의 종류를 선정코자 실시하였다. 1. 한국춘란은 부위별로 꽃봉오리, 뿌리끝, 어린잎, 성엽을 6% polyacrylamide slab gel로 단백질을 비교한 결과 부위별로 유형을 달리하였으나 band의 분리가 명확하지 않았다. 2. 10% SDS polyacrylamide slab gel에서는 band의 분리가 명확하였고 영동재료로는 어느 때나 쉽게 채취가 가능한 잎이나 뿌리를 사용하는 것이 편리하나 뿌리는 phenol 함량은 적으나 단백질 함량이 극히 낮으므로 잎을 시료로 쓰는 것이 양호한 편이었다. 3. 잎을 시료로 쓰는 경우는 엽록소, phenol의 제거가 필요하나 배양중인 rhizome을 사용하면 이러한 난점이 없이 단백질 유형이 뚜렷이 나타나, 춘란(Cymbidium goeingii), 한란(C, kanran), 죽백란(C, lancifolium)을 구분할 수 있었다. 4. Rhyzome의 esterase, peroxidase, acid phosphatase, glucose phosphate isomerase의 동위효소를 비교한 결과 단백질 유형으로는 분류가 어려웠던 춘란(Cymbidium goeringii)과 춘란복륜(Cymbidium goeringii:variated leaves)도 구분할 수 있었다. Peroxidase는 band는 여러가지로 나타났으나 esterase와 같이 band pattern이 명확지 못하였고 acid phosphatase와 glucose phosphate isomerase는 한개씩의 band만이 나타나 분류에는 적합하지 않은 효소로 생각되어졌다. The buffer soluble proteins were extracted from flower, root, young leaves, old leaves, and cultured rhizome. Different patterns of general protein were observed among the tested organs. Among the samples rhizome were the most suitable for electrophoresis to differentiate cultivars. Band patterns of general protein, esterase, peroxidase showed typical band patterns among Cymbidium goeringii, Cymbidium kanran, and Cymbidium lancifolium which have similar appearance of vegetative leaves. The isozymes of esterase, peroxidase, acid phosphatase, and glucose phosphate isomerase in cultured rhizome were analized. The well-resolved zones of esterase activity were detected. The differentiation of Cymbidium goeringii and Cymbidium goeringii : variated leaves which was hard to differentiated by general protein patterns, could be done by esterase isozyme band pattern.

한국 여성스포츠 활성화를 위한 연구

윤상화,남동현,조임형 龍仁大學校 1997 용인대학교 논문집 Vol.13 No.-

Historically women have been discriminated not only in sports but also in another fields of social life according to the social cultural backgrounds and customes. This sex discrimination is due to the lack of the opportunity to participate sports, the ideological prejudice of male diversionism and the systematic inequality uttered in the nomological, institutional, environmental aspects of society. And the social conception on male adventage and female dependence enforces the present discrimination in the women sports. Theoletically, discussion on women sports has been focused on the dogma that man governs woman in the sense of sex inequility in sports, limitation of female opportunity in sports, inequility of conservative system and the relative deprival of employment opportunity from the point of liberal, marxist, radical, socialist view. The sex discrimination is due to the social, cultural circumstance of a specific society and prejudicial cultural tradition. The cultural tradition form the idea that woman can play the role only through the family and companion because of her biological and depentent character and enforce such a sex role and social training. The social-role prejudice which began in the family and companion would be enforced and magnified through the discrimitive management of the curriculum and phisical education program at school. The sex discrimination has such a tendency of aggravation and perpetuity because of male-prejudicial news and scarcity of role-model, which have been discussed in many researches. But woman's sports were advanced quite much in accordance with feminism movements and the change of social/cultural definition on woman. In spite of all of these, there still appears to be some prejudice in the psyological, social-psychological, institutional realms. To sum up the factors which prevent woman's sports activate, Firstly, negative cognition of common people on woman's sports. Secondly, the prejudice that women are not adquite for sports activity. Thirdly, women themselves have the prejudice that sports activity makes their body manly. And to sum up the important theoletical factors concerned with the woman's sports activation, Firstly, woman has psychologically the stronger emotional intentionality than man. Secondly, woman has the weaker motivation for sports psychologically, which is due to her parents' indifference and the incorrect belief of 'womanlikehood' or 'out to be womanlike' and so on. Thirdly, because woman's participating the sports activity is influenced by intermediate group like family, the opportunity-situation became the important variable. Some conclusion for activation of Women's Sports Activation acquired in the study is as shown in the followings. Firstly, We must change the ineffective sports activities in the whole society, including the system, which places the importance in the examination at the existing school, and the physical education program which lays stress on the sudents to comply with the characteristics and interests of women in the scope of life-time sports, and the education on the leader who controls these programs effectively is urgent. Secondly,Mass Media must be interested in the sports, physical education activities of women, and show the positiveness on the program related to the women's own improvement and culture and on the public-information related to the concrete practical method.

중산간 농업용 만운저수지의 수질환경특성

남귀숙,장정렬,이광식,윤경섭,이상준 한국환경농학회 2003 한국환경농학회지 Vol.22 No.1

농촌지역의 도시화와 산업화에 따라 농촌 수질환경의 오염이 심화되고 있다. 경북 안동의 중산간지대에 위치한 만운저수지는 유역면적 23.8 km², 수표면적 0.4 km², 저수량 2.0×10^(6)m³의 부영양화 된 중규모 농업용저수지로서 1999년 수질환경특성조사를 실시하여 오염된 유사 농업용 저수지의 수질특성이해에 중요한 자료로 활용하고자 하였다. 만운저수지의 수질에 영향을 미치는 유역면적값(DA)/호수면적값(SA)의 비가 56.1로 국내 다른 농업용 저수지보다 높게 나타나 유역의 오염물질 부하가 높은 편이며, 평균 수심과 관련된 유효저수량(ST, m³)/수표면적(SA, m²) 비는 4.79로서 안동호, 팔당호보다 낮고 삽교담수호 등과 비슷한 값을 보여주어 부영양화의 잠재성이 높은 것으로 나타났다. 만운저수지의 수질조사결과 COD는 11.1 mg/L, 총질소 1.426 mg/L로 환경기준중 생활환경 Ⅳ등급인 농업용수 수질기준을 초과하였으며, 총인은 0.093 mg/L로 Ⅳ등급의 수질을 나타내고 있었다. 유입하천은 총질소(1.426~3.809 mg/L)가 비교적 높게 나타나고 있어 총질소에 기준한 수질개선 방안이 요구되었다. 식물성플랑크톤 조사결과 Oscillatoria와 근연종인 Lyngbya가 우점하였으며, 둥물성플랑크톤은 대부분의 지역에서 적조현상을 일으키는 와편모충인 Gynmodinium spp., 암색편모충인 Cryptomonas spp.이 우점하였다. 부영양화도지수(TSI)를 이용한 1999년도의 시기별 영양상태 변화는 9월에 과부영양상태를 보었으며, 연도별 TSI_(M)지수는 '96년, ‘97년에 부영양, '98년의 과영양으로 영양상태가 증가하였으나, 강우가 다소 많았던 '99년에는 강우의 영향으로 다소 개선되어 나타났다. 결론적으로, 저수지의 물리구조적 유역특성 및 수리학적 특성상 만운저수지는 부영양화에 취약한 특성을 가지고 있으며, 강우량에 영향을 받고는 있으나 전반적으로 부영양화도가 증가하는 추세를 보인다. 따라서, 이와 같은 추세변화를 정확히 인식하고 그에 적절한 대책을 마련하기 위해 농업용수 수질측정망 운영이 상당히 중요하게 인식되어지며, 수질환경 특성을 감안한 합리적 운영이 이루어져야 할 것으로 사료된다. Manun Reservoir, located in Andong district, has the capacity of 2 million tons in irrigation water supply with the drainage area of 23.8 km². Manua Reservoir is over fifty year old, and shallow in depth. The ratio of drainage area (DA) to reservoir surface area (SA) as an effective physical parameter on water quality was 56.1 and was higher than those of other agricultural reservoirs. The ratio of reservoir storage (ST) to SA in Manun Reservoir was 4.79, and the mean depth was below 8 m. Both ratios of DS/SA, total area (TA)/ST and ST/SA in Manua Reservoir were relatively higher than those in other agricultural reservoir and natural lakes in Korea. These physical parameters in Manun Reservoir, however, had a eutropic potential significance. Average of COD, TN, and TP in Manun Reservoir were 11.1 mg/L, 1.426 mg/L, 0.093 mg/L, respectively. In the inflow stream of Manun Reservoir, the TN (1.426~3.809 mg/L) was higher than those in reservoir. Only Lyngbya spp. was dominant in phytoplankton for this study period, and Gymnodinium spp., Peridinium spp., and Cryptomonas spp. were dominant in zooplankton. According to the Carlson's trophic status index, Manua Reservoir was eutrophic in 1996, 1997, and 1999, and hypertrophic in 1998.

자궁경부의 선암종에서 Polymerase Chain Reaction에 의한 Human Papillomavirus DNA 16/18의 검색

이상숙,박남조,윤종국 대한병리학회 1995 Journal of Pathology and Translational Medicine Vol.29 No.4

동등백분위법을 이용한 순발력 검사 방법간의 동등화 방안

남덕현,윤상화,김도준,박재우 龍仁大學校 體育科學硏究所 1999 體育科學硏究論叢 Vol.9 No.1

This paper is designed to equalize the points obtained from different tests of agility by means of equipercentile equating in accordance with grade and sex. The subjects consist of 923 high school students who have ever gone through the tests of power. As a result, I have reached the following conclusion. 1. I used equipercentile equating for recording the tests of power of the first male graders, coming up with equalized values such as 223㎝ in a standing board jump, 33.7m in five seconds' running and 42m in throwing, and 53m in a vertical jump at the 50 percent level. 2. The second male graders, coming up with equalized values such as 232㎝ in a standing board jump, 33.5m in five seconds' running and 42m in throwing, and 57㎝ in a vertical jump at the 50 percent level. 3. The third male grades, coming up with equalized values such as 242㎝ in a standing board jump, 34.8m in five seconds' running and 45m in throwing, and 57㎝ in a vertical jump at the 50 percent level. 4. The first female graders, coming up with equalized values such as 168㎝ in a standing board jump, 25.8m in five seconds' running and 10m in throwing, and 34㎝ in a vertical jump at the 50 percent level. 5. The second female grader, coming up with equalized values such as 174㎝ in a standing board jump, 25.8m in five seconds' running and 17m in throwing, and 31㎝ in a vertical jump at the 50 percent level. 6. The third male graders, coming up with equalized values such as 187㎝ in a standing board jump, 27m in five seconds' running and 16.6m in throwing, and 30㎝ in a vertical jump at the 50 percent level.