Duoplasmatron 이온원의 改善에 관한 硏究

琴明撤,李毛星,李東濬,金顯昌 성균관대학교 기초과학연구소 1986 論文集 Vol.37 No.2

We have studied on the factors that gave the limitation of performance on our laboratory's Duoplasmatron ion source. We describe (1) the method determining the distance between the intermediate electrode and anode gap, (2) the relationships between the discharge parameters and the regime change over points.

全羅道의 天主敎 受容 : 1784年에서 1801年까지 1784~1801

朱明俊 전북대사학회 1979 전북사학 Vol.3 No.-

원형고리날개의 양항특성에 대한 수치해석

황명신,이봉준,최일규 한국항공대학교 1993 論文集 Vol.31 No.-

삼차원 날개는 비행 중에 유도항력을 발생하게 된다. 현재까지 날개끝의 형상을 적절히 설계함으로써 유도항력을 감소시키고 양항비를 증가시키는 것에 대한 많은 연구가 수행되어왔다. 최근에 날개끝이 없는 고리날개에 대한 실험적인 연구가 발표된 바 있으며, 연구결과에 의하면 고리날개는 유도항력을 감소시키고 양항비를 증가시킨다는 보고가 있다. 본 논문에서는 원형의 고리날개의 양항특성에 대하여 VLM에 의한 수치해석을 하였고 직선형 날개와 공력특성을 비교하였으며 수치해석결과 실험치와 이론치가 만족할 만한 일치를 보였다. Three dimensional wing produce induced drag. Many studies have been made to reduce the induced drag and to increase the lift-drag ratio of a wing by prperly designig the wing tip. Recently, an experimental study was reported that the ring wing, which has no wing tip is effective to reduce induced drag and increase lift-drag ratio. In this paper, a numerical analysis was conducted by using Vortex Lattice Method onthe effect of circular ring wing on the lift and drag characteristics and compared with that of straight rectangular wing. The numerically predicted results agree with the experimental data favorably.

여성 복압성요실금에서 술 전 발살바요누출압에 따른 Suprapubic Arch 술식의 결과

박준명,유지형,성락희,정재용,노충희 인제대학교 2008 仁濟醫學 Vol.29 No.-

Objective : There were variant results for correlation between the postoperative cure rate and valsalva leak point pressure (VLPP) for female stress urinary incontinence (SUI). Therefore the aim of this study was to assess the influence of VLPP on the outcome of suprapubic arch (SPARC) procedure. Materials and Methods : A retrospective analysis was made of 246 women who underwent SPARC procedure for SUI. Based on VLPP, the patients were divided into 2 groups: group A (VLPP<60cmH2O) and group B (VLPP≥60cmH2O). The objective success rate and subjective success rate were assessed. Before surgery, the patients were evaluated with history taking, physical examination, urinalysis and urodynamic studies. The objective success rate was evaluated by clinical examination and the 1-hour pad test postoperatively and the subjective satisfaction rate was assessed using questionnaires for the patients' satisfaction and evaluated by recommendation rates of SPARC procedure to other patients. The objective success rate included cure and improvement, the subjective success rate included satisfaction and fair. Results : The number of patients in each group was 145 patients (group A) and 101 patients (group B). The objective success rate was 99.3% (group A) vs 98.0% (group B) (p=0.285). The subjective success rate was 98.6% (groupA) vs 98.0% (group B) (p=0.500). Recommendation rates of SPARC procedure was 94.5% (group A) vs 95.0% (group B) (p=0.422). Conclusion : It is our belief that SPARC procedure for female SUI is efficacious and safe regardless of preoperative VLPP.

고분자 전해질 감습막의 합성과 전기적 성질

공명선,조준상,이학민,김경호 경북대학교 센서기술연구소 1991 센서技術學術大會論文集 Vol.2 No.1

고분자 습도센서의 감습재료로 이용하고자 4-vinylpyridine (4-VP) 과 methylmethacrylate(MMA) 의 공중함체를 전극에 도포한 후 α, ω-dihaloalkane으로 4 차 암모늄화시킨 후 습도변화에 따른 전기저항을 측정한 결과 소수성 모노머인 MMA의 양이증가할 수록 전기저항이 증가하였으며, 또한 α, ω-dihaloalkane에 의한 4차 암모늄화 반응시간에 따라서도 전기저항의 크기 및 감습막의 안정성에 차이가 있음을 알 수 있었다. In order to for a humidity sensitive material of polymeric humidity sensor, a copolymer of 4-vinylpyridine (4-VP) and methylmethacrylate (IBA) is coated on the electrode and then 4 quartermization by α, ω-dihaloalkane, and thereafter measured the electrical resistance due to humidity variation. As a result, the more content of MMA which is a hydrophobic monomer is increased, the more property of electrical resistance is increased. Also, according to the reaction time in 4 quarternization by α, ω-dihaloalkane we can see the diferences of the magnitude of electrical resistance and the stability of humidity -sensitive membrane.

창공91의 비행시험을 통한 속도 및 고도 보정에 관한 연구

黃明信,李晶模,李璟埈 한국항공대학교 1992 論文集 Vol.30 No.-

본 연구는 창공91 항공기의 비행시험을 수행하기 위하여 기본이되는 항공기의 고도계와 속도계를 보정하는 방법에 대해 기술하였으며, 실제 비행시험을 통한 결과를 이용하여 항공기의 계기를 보정하는 방법을 나타내었다. 속도계와 고도계를 보정하기 위하여 수행되는 비행시험에는 여러가지 방법이 있지만, 본 연구에서는 일반적으로 경항공기를 제작하여 판매하는 항공기 제작사에서 운용되는 방법인 tower flyby 방법과 system to system방법을 사용하였다. 이 방법은 pitot head에 오차가 없음을 가정한 방법이다. 비행시험을 통해 실제 측정된 자료들은 항공기 계기 보정에 적절함을 알 수 있었다. A study on the airspeed and altimeter calibration of Chang-Gong 91 was conducted by the flight test. Airspeed calibration are conducted using the altimeter method(tower flyby). This method assumes that all the airspeed position error is caused by the static system and that there is no error in the pitot head. For that reason, this method is used mainly in the small aircraft manufacture company. We have been also conducted the ‘system to system’ method using the swivel head airspeed booms. Flight test data is corrected for instrument error and position error, and the resulting data was satisfied.

초등과학 탐구수업 지도자료의 활용 실태

신영준,장명덕,배진호,권난주,여상인,이희순,노석구 한국초등과학교육학회 2005 초등과학교육 Vol.24 No.2

In this study, we had tried to present a plan for improving the actual conditions of practical utilization of teaching material for 6th grade science developed by Ministry of Education & Human Resources Development and distributed to all elementary schools in Korea. Also we presented ways of better utilization of the teaching material after investigating the actual conditions of practical utilization. A survey was made to investigate and collect all data in the major metropolitan cities, the Kangwon, Chungcheong, Honam, and Kyeongsang area, respectively. We surveyed 316 6th grader teachers to investigate the actual conditions of distribution and utilization of teaching material as a general research. In addition, we surveyed 46 teachers to investigate the organization and content of teaching material as a particular research. The results are as follows. First, the teaching material was not approximately transmitted and kept to 6th grader teachers. Second, the utilization guide was not made. Third, it was reported that the thematic divisions of teaching material was a strong point, but the less detailed experiment manual was a weak point. Fourth, the consideration of content difficulties and simplicity was necessary to improve the material. Fifth, additional items should be included in the introductory presentation, convenience of reorganization, activity material causing learning interest, guidance of substitution experiment, and more concrete notice of experiment activity. Finally, there were positive responses of more than 4.0 point of Likert scale (1 to 5 point scale) in detail investigations of thematic items, which could have possibility that the teaching material was helpful to elementary school science field.

통합심리치료의 인지분화훈련이 정신분열병 환자의 기초 인지기능에 미치는 영향

이희상,현명호,조현상,이연희,김태용,장순아,노규식,정기립,이만홍,유계준 大韓神經精神醫學會 1998 신경정신의학 Vol.37 No.5

연구목적 : 정신분열별 환자들을 대상으로 통합심리치료의 소프로그램인 인지분화훈련을 실시하여 실행기능, 개념형성능력, 언어능력 및 추론력에 대한 훈련이 보다 더 하위단계의 인지기능인 주의력, 기억력, 반응시간 등을 호전시킬 수 있는 지를 알아보고자 하였다. 연구방법 : DSM-IV상 정신분열병으로 진단된 24명의 입원환자를 무작위로 양분하여 한 군은 인지분화훈련군으로 다른 한 군은 대조군으로 나누었다. 훈련군은 4주동안 1주일에 3회(매회 60분간)로 총 12회의 통합심리치료의 인지분화훈련을 받았으며 대조군은 동일한 시간동안 정신건강교육을 받았다. 훈련전후에 훈련군과 대조군을 대상으로 개정판 Wechsler 기억검사로 주의집중력, 장·단기 기억력을 측정하였고 Vienna test system중 결정반응시간검사로 반응시간, 반응결정시간, 반응운동시간을 평가하였다. 연구결과 : 1) 주의집중력에서는 훈련군과 대조군사이에 집단간 효과, 집단내 효과 및 상호작용 효과가 없었다. 2) 단기기억력에서는 훈련군과 대조군사이에 집단내 효과는 있었으나(F(1,24)=10.46. p〈.05). 집단간 효과, 상호작용 효과는 없었다. 3) 장기기억력에서는 훈련군과 대조군사이에 집단내 효과는 있었으나(F(1,24)=15.09. p〈.05). 집단간 효과, 상호작용 효과는 없었다. 4) 반응시간에서는 상호작용 효과(F(1,24)=5.18, p〈.05)가 있었다. 5) 반응운동시간에서는 집단간 효과, 집단내 효과 및 상호작용 효과가 없었다. 6) 반응결정시간에서는 상호작용 효과(F(1.24)=6.00, p〈.05)가 있었다. 결 론 : 통합심리치료의 인지분화훈련은 정신분열병 환자에서 하위단계의 인지기능 중 반응시간(특히 반응결정시간)을 단축시키는 효과가 있었다. Objectives : The purpose of this study was to investigate the effects of cognitive differentiation training of Integrated Psychological Therapy(a training program of executive function, concept formation, language, and abstraction) on micro-level cognitive function such as attention, memory and reaction time in patients time in patients with schizophrenia. Methods : Twenty-four inpatients diagnosed as schizophrenia using DSM-IV were randomly assigned to 2 groups. The training group went through a total of 12 sessions of cognitive differentiation training for 4 weeks. The control group received psychoeducation program during the same period. Wechsler Memory Scale-Revised and Decision-Reaction Timer of Vienna Test System were administered to all patients, both before and after the training program. Results : 1) In the attention and concentration scores of Wechsler Memory Scale-Revised, between group, within group and interaction effects of training were not significant. 2) In the short-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=10.46, p〈0.05), but the between group and interaction effects did not reach significance. 3) In the long-term memory scores of Wechsler Memory Scale-Revised, within group effect of training was significant(F(1,24)=15.09, p〈0.05), but the between group and interaction effects did not reach significance. 4) In the reaction time scores of Decision-Reaction Timer, interaction effect of training was significant(F(1,24)=5.18, p〈0.05). 5) In the motor time scores of Decision-Reaction Timer, between group, within group and interaction effects of training were not significant. 6) In the decision time scores of Decision-Reaction Timer, interaction effect of training was significant(F(1,24)=6.00, p〈0.05). Conclusion : Our findings suggest that cognitive differentiation training of Integrated Psycho-logical Therapy is partly effective on improving micro-level cognitive functions such as reaction time(especially, decision time) in patents with schizophrenia.

대학생의 여가활동 유형이 여가만족에 미치는 영향

이정자,김명준 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

The purpose of this study was to examine the effects of types of leisure activity and Leisure satisfaction through university student. The main purpose of this study was to examine the effects of the types in Leisure activity on Leisure satisfaction by comparing the difference of psychological, educational, social, physiological, environmental, and relaxant satisfaction. Subjects of this study were sampled 356 a university man by the random sampling method, Statistics employed in this study were analysis of covariance(ANCOVA). Based on the procedures and result, the following conclusions were warranted: First, the types of leisure activity among a university man has an influence on psychological satisfaction, That is, there is difference in the psychological satisfaction according to the types of leisure activity, and sports activities is highest. Second, the types of leisure activity among a university man has an influence on educational satisfaction, That is, there is difference in the educational satisfaction according to the types of leisure activity, and sports activities is highest. Third, the types of leisure activity among a university man has an influence on social satisfaction, That is, there is difference in the social satisfaction according to the types of leisure activity, and social activities is highest. Forth, the types of leisure activity among a university man has an influence on physiological satisfaction That is, there is difference in the physiological satisfaction according to the types of leisure activity, and sports activities is highest. Fifth, the types of leisure activity among a university man has an influence on environmental satisfaction, That is, there is difference in the environmental satisfaction according to the types of leisure activity, and sightseeing activities is highest. Sixth, the types of leisure activity among a university man has an influence on relaxant satisfaction, That is, there is difference in the relaxant satisfaction according to the types of leisure activity, and sports activities is highest.

접착제와 와동형성의 차이에 따른 5급 복합레진 수복의 전향적 임상연구

이경욱,정세준,한영철,손호현,엄정문,오명환,조병훈 大韓齒科保存學會 2006 Restorative Dentistry & Endodontics Vol.31 No.4

본 연구의 목적은 복합레진을 이용한 비우식성 치경부 5급 병소 수복에 있어서, 3가지 다른 접착제를, 유지구를 부여한 치아와 부여하지 않은 치아에 적용하였을 때의 임상적인 효능의 차이를 비교하기 위함이다. 총 150개의 치아를 각각 25개씩 6개의 군으로 나누었다. A군 Scotchbond Multi-Purpose (SBMP, 3M ESPE, St, Paul, MN, USA, 4세대 접착제)를 사용하고 유지구를 부여하지 않음. B군: SBMP를 사용하고 유지구를 부여. C군: BC Plus (Vericom Co., Anyang, Gyeonggido, Korea, 5세대 접착제)를 사용하고 유지구를 부여하지 않음. D군: BC Plus를 사용하고 유지구를 부여. E군: Adper Prompt (3M ESPE, Seefeld, Germany, 6세대 접착제)를 사용하고 유지구를 부여하지 않음. F군: Adper Prompt를 사용하고 유지구를 부여. 모든 치아는 복합레진인 Denfil(Vericom Co., Anyang. Gyonggido. Korea)을 이용하여 충전하였다. 수복 직후와, 수복 6개월 후에 modified USPHS (United States Public Health Service) criteria에 따라 수복물을 임상적으로 평가하였다. 추가적으로 임상사진을 촬영하였으며, 에폭시 레진을 이용하여 복제한 후 주사전자현미경을 이용하여 이를 관찰하였다. 6개월 후 관찰 결과. alpha rating의 수가 각 실험군마다 동일하지는 않았지만, 통계적으로는 3가지의 접착제간에 유의할만한 차이는 없었고, 기계적인 유지구를 부여한 군과 부여하지 않은 군 간에도 유의할만한 차이는 없었다 (p > 0.05). 그러나 6개월의 관찰 기간은 일반적으로 기대되는 레진의 수명보다 짧기 때문에, 각 실험군 간의 차이를 알아보기 위해서는 추후 더 오랜 기간의 관찰이 요구된다. The purpose of this study is to evaluate prospectively the effect of different bonding systems and retention grooves on the clinical performance of resin restorations in non-carious cervical lesions (NCCLs). Thirty nine healthy adults who had at least 2 NCCLs in their promolar areas were included in this study. One hundred and fifty teeth were equally assigned to six groups; (A) Scotchbond Multi-Purpose (SBMP, 3M ESPE, St, Paul, MN, USA, 4th generation bonding system) without retention grooves; (B) SBMP with retention grooves: (C) BC Plus (Vericom Co., Anyang, Gyeonggido, Korea, 5th generation bonding system) without retention grooves; (D) BC Plus with retention grooves; (E) Adper Prompt (3M ESPE, Seefeld, Germany, 6th generation bonding system) without retention grooves: (F) Adper Prompt with retention grooves. All cavities were filled with a hybrid composite resin, Denfil (Vericom Co., Anyang, Gyeonggido, korea) by one operator. Restorations were evaluated at baseline and at 6-month recall, according to the modified USPHS (United states Public Health Service) criteria, Additionally, clinical photographs were taken and epoxy resin replicas were made for SEM evaluation. At 6-month recall, there were some differences in the number of alpha ratings among the experimental groups. But, despite the differences in the number of alpah ratings, there was no significant difference among the 3 adhesive systems (p > 0.05). There was also no significant difference between the groups with or without mechanical retention (p > 0.05). Follow-ups for longer periods than 6 months are needed to verify the clinical performance of different bonding systems and retention grooves. 〔J Kor Acad Cons Dent 31(4):300-311, 2006〕