습식텍스쳐를 이용한 삼결정 실리콘 광학적.전기적 특성 연구

한규민(Han, Kyu-Min),유진수(Yoo, Jin-Su),유권종(Yoo, Kwon-Jong),이희덕(Lee, Hi-Deok),최성진(Choi, Sung-Jin),권준영(Kwon, Jun-Young),김기호(Kim, Ki-Ho),이준신(Yi, Jun-Sin) 한국신재생에너지학회 2009 한국신재생에너지학회 학술대회논문집 Vol.2009 No.06

Two different wet etching solutions, NaOH 40% and Acid, were used for etching in tri-crystalline Silicon(Tri-Si) solar cell fabrication. The wafers etched in NaOH40% solution showed higher reflectance compared to the wafers etched in Acid solution after SiN_x deposition. In light current-voltage results, the cells etched in Acid solution exhibited higher short circuit current and open circuit voltage than those of the cells etched in NaOH 40% solution. We have obtained 16.70% conversion efficiency in large area(156cm²) Tri-Si solar cells etched in Acid solution.

한국과 미국 대학원생의 사회복지 전공선택 동기요인에 관한 비교분석 연구 : A Comparison Study Between Korean and American Graduate Students

신준섭,魯相學 강남대학교 사회과학연구소 1998 사회과학논총 Vol.5 No.-

社會體育과 레크리에이션의 關係硏究

申俊浩 淸州大學校 1980 論文集 Vol.13 No.1

연속파형 Nd:YAG 레이저에 의한 인코넬 600의 용접 공정변수의 연구

배신철,유영태,송성욱,신호준,나기대 朝鮮大學校 機械技術硏究所 2004 機械技術硏究 Vol.7 No.1

The laser welding process is one of the most advanced manufacturing technologies owing to its high speed and deep penetration. Welding characteristics of Inconel 600 Alloy using a continuous wave Nd:YAG laser are experimentally investigated. The major process parameters studied in the present laser welding experiment were position of focus, laser power, travel speed. The gap and offset maintained as small as possible. Optical microscope were used to investigate the microstructures of the welded zone. The follow conclusions can be drawn the laser power and travel speed have a pronounced effect the fusion zone size and shape.

발프로산나트륨과 페니토인과의 약물상호작용

최준식,유재신,박용채,이진환 朝鮮大學校 1997 藥學硏究誌 Vol.18 No.2

This study was attempted to investigate the pharmacokinetic interaction between sodium valproate (4. 8. 16 ㎎/㎏. i.v.) and phenytoin (4 ㎎/㎏. i.v) in rabbits. The plasma concentration and area under the curve (AUC) of phenytoin were increased significantly (p<0.05. p<0.01) when coadministered with sodium valproate (4. 8. 16 ㎎/㎏) in rabbits. The volume of distribution and total body clearance of phenytoin were decreased significantly (p<0.05. p<0.01) when coadministered with sodium valproate (8. 16 ㎎/㎏) in rabbit. From the results of this experiment. it is desirable that dosage regimen of phenytoin should be adjusted and therapeutic drug monitoring should be performed for reduction of side or toxic effect when phenytoin will be coadministered with sodium valproate in clinical use.

체육교과 수업에 따른 스트레스 요인에 관한 연구 : 대전시 고등학생을 중심으로 focus on high students in Daejeon city

강신일,김영준 公州大學校 스포츠科學硏究所 2005 스포츠科學硏究所論文集 Vol.17 No.-

This study, based on analyzing the factors of stresses caused by physical education class on the 7th Curriculum was intended to provide the data which needed to raise the rate of participation for physical education class and to propose a method of physical education which met to the students' demands. This study focused on only second-year students of six academic high schools(two boys' high school, two girls' high school and two coeducational high school) in Daejeon city. The confidence level of this data was examined by the modulus of Cronbach's alpha(α) and the characteristics of questionaries were examined through the standard deviation and the average. The results of this study are as follow; First, the students prefer to learn in order of soccer, shooting, tennis, badminton and archery. A soccer was the most popular event among the boy students and a shooting was the most popular event among the girl students. Second, the students felt stress strongly to the examination and the next was in the lack of confidence, and the students were under the least stress in the friction among friends. In the facilities and the condition of environment, the students were under so much stresses in the lack of sports equipments, and in the teachers. They were dissatisfied with the teachers' teaching methodologies. Third, in the factors of the stresses by gender, the girl students were under the more stress to the learning contents than the boy students. Fourth, in the difference classified by the school, the girl students of coeducational high school were under the most stresses and the next was in order of the girl students of girls' high school, the boy students of coeducational high school and the boy students of boys' high school in the learning contents. In the learning contents by Duncan's multi-comparison, there was no difference among the girl students. The girl students were under more stresses than the boy students, and the boy students of coeducational high school were under more stresses than the boy students of boys' high school. Fifth, in the factors of stresses classified by the satisfaction for physical education class, we divided two groups, one is group which satisfied for the class, the other is a group which unsatisfied for the class. In both groups, the students were under the most stress to the examination. In the group which satisfied for the class, the students were under a little stress in the friction among friends, in the learning contents and in the factors of unsatisfaction for the teacher. The students of the group which unsatisfied for the class were under so much stresses to the six questionaries, and the difference of 't' value was the highest in learning contents.

[논문]메타카올린 치환에 따른 알칼리-실리카 반응 억제효과

전쌍순,강신화,엄장섭,진치섭 釜山大學校生産技術硏究所 2005 生産技術硏究所論文集 Vol.64 No.-

본 연구에서는 메타카올린의 알킬-리-실리차 반응에 의한 팽창 저김-효과를 알아보고자 시멘트에 대한 메타카올린의 치환율을 달리하여 반응성 골재에 대한 ASTM C 1260 시험법으로 팽창 저감효과를 평가하여 보았다. 사용 된 반응성 콜재는 ASTM C 1260 시험법에 의해 유해한 것으로 판정된 변성암 골재이다. 메타카올린은 시멘트 중량에 대하여 0, 5, 10 15, 25 및 35% 로 치환하였다. 모르타르 강도측면만 고려한 메타카올련의 치환율은 15% 가최적인 것으로 판단되며,모르타르 유동성 측면에서 메타카올린의 적절한 치환율은 5% 인 것으로 판단된다. 메타카올린으로 시멘트를 15% 이상 치환을 하면 ASTM C 1260에 의해 14 일에 0.2% 이상의 팽창을 나타낸 반응성 골재의 경우, 알칼리-실리차 반응에 대한 팽창 저감효과가 있는 것으로 나타났으며, 메타카올린의 최소 유효 치환율은 25% 인 것으로 판단된다.

연행이론의 관점에서 본 평생학습축제의 현상학

박지연,박신영,이병준 한국문화교육학회 2012 문화예술교육연구 Vol.7 No.1

현재 전국적으로 중앙정부로부터 선정된 평생학습도시들은 매년 평생학습축제를 개최하고 있다. 평생학습축제는 평생학습이라는 같은 주제로 지역별로 개최되는 평생교육 관련 기관·단체 간의 교류를 통한 평생학습문화 진흥과 평생학습사회 실현을 목적으로 하는 학습, 문화, 스포츠, 복지 등의 복합적인 종합축제이다. 지역차원에서는 평생학습축제의 기획과 준비에 비교적 많은 시간과 예산, 노력이 투입되고 있으며 평생교육실천가들의 많은 에너지가 수반됨에도 불구하고 이에 대한 성찰적 연구는 매우 적은 편이다. 본 연구는 평생학습문화의 촉진을 위한 정책적 차원에서 매년 개최되고 있는 지역 평생학습축제의 문제를 다룬다. 학습문화를 촉진하기 위한 목적으로 기획되는 축제가 교육적으로 유의미하기 위해서는 축제에 기저를 둔 연행과 의례에 기반한 새로운 경험과 학습의 이행과정을 이해해야 한다. 기존의 축제들은 정책홍보적 성격을 띄고 있어 축제 주제와 컨텐츠의 탈지역성, 운영의 행정주도성으로 인해 교육적 의미가 내포되지 못한 채 중요한 지역행사로 자리잡게 되는 상황에 이르렀다. 이러한 문제의 발단은 평생학습을 생각하며 축제를 기획하는 사람들이 축제가 가지는 연행이론적 측면에서의 교육적 유의미함을 이론적으로 파악하고 있지 못하는데서 비롯된다. 즐거움과 문화적 분위기속에서 경험과 학습이 촉진될 수 있다는 컨셉이 있다면 지역평생학습축제가 전국적으로 대동소이한 주제와 방식으로 그리고 동원된 특정 계층의 참여자를 기반하지는 않을 것이다. At present, the worldwide lifelong learning cities selected by central government hold lifelong learning festival every year. The lifelong learning festival is a general festival combined by studying, culture, sports, welfare, etc. with the purposes that promotion of lifelong learning culture and realization of lifelong learning society through the exchange among the institutions·organizations related to lifelong learning, held in each region, under the same subject, lifelong learning. At regional level, relatively lots of time, budgets and efforts are invested to planning and preparation of lifelong learning festival and lifelong learning doers put lots of energy to it. In spite of it, there is few introspective studies on it. This study treats problems of regional lifelong learning festival held every year at political level for promoting lifelong learning culture. The process of new experience and studying based on festival's performance and rite must be understood so that the festival which is planned to promote studying culture can be significant educationally. Existing festivals have political publicity characteristics, so they become important regional festivals without educational meaning because of the delocality of festival subject and contents and administrative leading of operation. The problem is caused by that people who plan the festival by considering lifelong learning don't grasp the festival has educational significance theoretically from the aspect of performance theory. If there is a concept that experiences and studying can be promoted in the atmosphere of pleasure and culture, regional lifelong learning festival will be neither progressed under similar subject and method nationally nor participated by mobilized special-class participants.

비침습적 검사를 이용한 수술후 하지 심부 정맥 혈전증의 감시

김영욱,정한준,윤봉호,김신윤,이상국,변경환,김태헌 경북대학교 병원 1997 경북대학교병원의학연구소논문집 Vol.1 No.1

Deep vein thrombosis is recognized as a common complication in surgical patients in western countries especially in patients with high risk factors. The purposes of this study were to detect leg DVTs in early postoperative period by non-invasive surveillance and to analyze the risk factors of DVT. One hundred seventy one patients who underwent major operations(67 curative resection of colorectal cancer, 64 total hip replacement, 38 femur operation for fracture, and 2 colon resections for benign colon disease) were included for the prospective surveillance of leg DVT within 2 weeks after the operations. For the surveillance of leg DVT, strain gauge plethysmography(SPG) and Duplex scanning of both legs were completed for all patients except 10 patients. These 10 patients were examined in only one leg. The patients with past history of leg DVT or under prophylactic anticoagulant therapy were excluded from this study. To determine the risk factors related with leg DVT formation, age and sex of the patients, indication of surgery or surgical procedures, duration of operation, position during the operation, duration of postoperative immobilization, and preoperative serum level of antithrombin III (AT- III) were analyzed using Chi-square test. After performing SPG of 342 legs, 38 legs, showed abnormal on venous outflow/venous capacitance discriminant line chart, and 13 legs of 12 patients showed the finding(s) suggesting DVT on duplex scanning. Among the patients with abnormal duplex findings, 7 limbs(53.8%) were symptomatic, but the remaining 6 legs were silent. In 6 (15.8%) patients of 36 femur operations, 3(4.7%) of 64 total hip replacements and 3(4.5%) of 67 curative resections of colorectal cancer developed DVT by duplex scanning in the iliac(5), femoral-popliteal(6), and isolated calf(2) veins. After analyzing the risk factors, we could not find any statistically significant(p<0.05) factor related with leg DVT.

서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1998)

김재홍,김준호,반재용,이정우,황성주,정준규,정성태,강진문,조흔정,홍창의,정혜신,이한승,김이선,이봉길,이종호,선영우,한기덕,윤성필,이성훈,안종성,박석범,문승현,조항래,김형섭,류지호,황재영,박준홍,손상욱 한양대학교 의과대학 2001 한양의대 학술지 Vol.21 No.1

In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. For the detection of a more effective therapeutic regimen and assessing the prevalence of Penicillinase Producing Neisseria gonorrhoeae(PPNG), we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by menas of the chromogenic cephalosporin method. In 1998, 93 strians of N. genorrhoeae were isolated, among which 60(64.5%) were PPNG. The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 64.5% in 1998.