歷史環境法制의 내용과 문제점

남궁승태,박정희 대불대학교 2002 大佛大學校大學院 硏究論文集 Vol.- No.1

수강 등록 데이터의 빈출 패턴을 이용한 학업 진척도 및 상태 분석을 위한 시퀀스 데이터 마이닝

정효남·전성희·황준 서울여자대학교 컴퓨터과학연구소 2014 정보기술논문지 Vol.12 No.-

수출용 축양품종 가지의 염절임 공정의 최적화

남학식,김남우,황성희,윤광섭,신승렬 한국식품저장유통학회 ( 구 한국농산물저장유통학회 ) 2003 한국식품저장유통학회지 Vol.10 No.3

가지의 수출 경쟁력 향상을 위한 한 방안으로 수출용 가지품종인 축양품종을 염가공품으로 개발하기 위하여 염절임공정을 최적화하였다. 염절임 시간, 절임온도, 염농도를 독립변수로 하고 절임 후 수분함량, 염도, 표면과 내부의 색도 등을 종속변수로 하여, 중심합성계획법으로 실험을 설계하여 최적조건을 얻고자 하였다. 수립된 이차회귀모형으로 예측식을 수립할 수 있었으며 특히 수분함량이나 염도, 표면과 내부의 L과 b 값에 대하여 높은 적합도를 보여 최적조건을 수립하기 위한 제한 변수로 선정하였다. 염농도를 중심점(30%)에서 고정시켜서 얻은 절임시간과 온도는 각각 5.5~6.5일과 13-17℃였으며, 이때의 종속변수의 제한 요건으로는 수분함량 84%이하, 염도 14%이하 표면 L값 10-20, b값 0이하, 내부 L 값은 70-75, b 값이 16-18이었다. This study was conducted to the optimize salting process of eggplant for development new product and enhancement quality for export. Three variables by five level central composite design and response surface methodology were used to determine optimum conditions for salting time, temperature and salt concentration. Optimization of the process was conducted using the combination of the moisture content, salinity and color of surface and inside of salted eggplant. The regression polynomial model was suitable (P>0.05) by Lack-of-Fit analysis with highly significant. To optimize the process, based on surface response and contour plots, the individual contour plots of the response variables were superimposed. The optimum conditions for this process were 6 days and 15℃ at 30% concentration under the optimum of restricted variables as moisture content was below 84%, salinity was below 14%, L and b value of surface were 10 to 20 and below 0, L value and b value of inside were 70 to 75 and 16 to 18.

E급 스위칭 Mode DC-DC Converter에 관한 연구

남승식,김동희,노채균 嶺南大學校 工業技術硏究所 1992 연구보고 Vol.20 No.1

This paper proposes a DC-DC Converter of high frequency inverter control type of E class switching mode to reduce switching loss by constructing a resonance type DC-DC Converter. The steady state characteristics of the proposed circuit is analyzed by mormalized parameters. In addition, the characteristics of proposed DC-DC converter of E class switching mode is evaluated by describing the characteristics frequency, load, switching voltage and current. Based on the characteristic values, a method of circuit design is proposed. A constant output is controlled by PWM and PFM-TRC method using power MOSFET. By means of experiment, the proposed theory is proved and the results show that it can be used for practical purposes.

ZVS를 이용한 풀 브릿지 단일 전력단 고주파 공진 AC-DC 컨버터의 특성해석

남승식,황계호,오경섭,원재선,조규판,김동희 嶺南大學校 工業技術硏究所 2003 工業技術硏究所論文集 Vol.31 No.2

This paper proposes a single-stage high frequency resonant AC-DC converter using zero voltage switching with high input power factor. The proposed high frequency resonant converter ingegrates a half bridge boost rectifier as power factor corrector(PFC) and half resonant converter into a single stage. The input stage of the half bridge boost converter is working in discontinuous conduction mode(DCM) with constant duty cycle and variable switching frequency. Therefore, high power factor is achieved naturally. The results of simulation using the Pspice have demonstrated the feasibility of the proposed AC-DC converter. The proposed converter will be able to be practically used as power supply.

40세 이하 관상동맥 질환자에서 장기적 임상 관찰

이승욱,정명호,박종철,박형욱,조상희,김원,김계훈,이상현,강경태,조장현,김남호,김건형,안영근,조정관,박종춘,강정채 全南大醫大 2001 전남의대학술지 Vol.37 No.2

Ba-Ferrite를 이용한 자기 연마재 개발

김희남,송승기,정윤중,윤여권,김희원,조상원,심재환 한국안전학회 2003 한국안전학회지 Vol.18 No.2

The magnetic polishing is the useful method to finish some machinery fabrications by using magnetic power. This method is one of the precision techniques and has an aim for clean technology in the transportation of the pure gas in the clean pipes. The magnetic abrasive polishing method is not so common in the field of machine that it is not known to widely. There are rarely researcher in this field because of non-effectiveness of magnetic abrasive. Therefore, in this paper we deals with the development of the magnetic abrasive with the use of Ba-Ferrite. In this development, abrasive grain WA has been made by using the resin bond fabricated at low temperature. And magnetic abrasive powder was fabricated from the Ba-Ferrite which was crushed into 200 mesh. The XRD analysis result shows that only WA abrasive and Ba-Ferrite crystal peaks were detected, explaining that resin bond was not any more to contribute chemical reaction. From SEM analysis, we found that WA abrasive and Ba-Ferrite were strongly bonding with each other.

의복유형과 헤어스타일이 남성의 인상형성에 미치는 영향

임남영,강승희 服飾文化學會 2003 服飾文化硏究 Vol.11 No.3

The purpose of this study was to examine the effect of clothing type and hair style on men's impression formation. The experimental design was 4×2×2×2 (clothing type×hair style×perceiver's age×perceiver's role)factorial design with between-subjects design. The stimuli of color photographs of male in his 20's model and semantic differential scale were used. The data were obtained from questionnaires completed by 881 men and women in the metropolitan area of Seoul. The SPSS package was used for data analysis which includes factor analysis, t-test, and Cronbach's a to measure the reliability. This study showed the following results. Four factors were derived to account for the dimensions of impression formation. These were dignity, activity, individual character, and social intercourse. Men evaluated individual character factor higher than women did. Dignity factor was evaluated higher by students, while social intercourse factor was evaluated higher by office workers. The clothing type of shirts/pants was evaluated to be more active and more sociable than of jacket/pants. Men wanted to exhibit natty image and women did elegant image through clothes.

쾌적한 도시환경 조성을 위한 어메니티자원 조사 및 발굴에 관한 연구 : 부산광역시 서구를 중심으로

김승환,박승범,강영조,남정칠,도창희 東亞大學校 1997 東亞論叢 Vol.34 No.-

This study tries to survey and extract amenity resources for the creation of urban amenities Seo-Gu at Pusan city was selected due to abundant amenity resources in the region. The process of research methodology as follows; Firstly, various types of amenity resources were collected by literature and preliminary survey. The resources were classified into 5 categories as park and greenery, natural, historic, cultural and life resources. These were reclassified such three types of detailed frames existing, potential and extractable forms. Secondly, the detailed information on amenity resources in the site was gathered by visiting all Dongs in Seo-Gu. Furthermore, careful amenity watching survey was carried out to extract potential in citizen`s common behavior. Then, amenity resources was evaluated through the assessment survey of landscape architects and other professionals. Finally, amenity resources maps were produced based on the evaluation of the selected amenity resources. The total amenity resources in Seo-Gu amount 169, which comprised of 81 existing resources, 22 potential resources, and 66 extracted resources. In order to create and maintain the best quality of urban amenity, it`s important to have this kind of amenity resources map. Citizen, planners and policy makers can use these to make better urban environment by providing the information of existing, potential and extractable amenity resources which may enhance the pride and affection for the citizen.

랫드에서 신우황청심원의 급성 및 아급성독성시험

오승민,남혜윤,김준수,연제덕,신대희,이진영,박대규,조명행,정규혁 성균관대학교 약학연구소 1998 成均藥硏論文集 Vol.10 No.1

The acute and subacute toxicity of New Woohwangchungsimwon(NWCH) which was used l-muscone as substitutive material of musk were investigated in S.D. rats. In intraperitoneal acute toxicity test, rats(Sprague-Dawley, SPF) were injected intraperitoneally with dosages of 0, 540, 750, 1,070, 1,500 and 3,000 ㎎/㎏. Body weights were significantly decreased at 540 ㎎/㎏ dose group in both sexes and abnormal autopsy findings were founded in both sexes at all treated groups. Intraperitoneal LD_50 of NWCH was 812.3 ㎎/㎏ in male and 872.3 ㎎/㎏ in female rats. In the subacute toxicity study, NWCH was administrated orally to both sexes of rats for 4 weeks as several doses(0, 320, 800 and 2,000 ㎎/㎏). There were neither dead animals nor significant changes of body weights during the experimental period. In addition, no differences were found between control and treated groups in clinical signs, urinalysis, hematology, serum biochemical analysis, and other findings. Above data strongly suggest that no observed adverse effect level of NWCH might be over 2,000 ㎎/㎏/day in this study.