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      • 스마트카드와 지문을 이용한 고도의 개인확인 시스템 개발

        박선홍(Seon-Hong Park),이대종(Dae-Jong Lee),최돈진(Don-Jin Choi),전명근(Myung-Geun Chun) 한국지능시스템학회 2011 한국지능시스템학회 학술발표 논문집 Vol.21 No.1

        정보화 시대에 있어서 개인인증 기술과 개인신상 보안에 대한 기술 요구가 날로 증가되고 있으며, 개인이 갖고 있는 정보나 기타 시설물 등에 대한 보안 또한 중요성이 높이 부각되고 있는 상황이다. 지문인식 기술은 생체인식방법 중 가장 현실성 있는 생체인식 기술의 하나로, 분실의 염려가 없으며, 누구나 편리하게 사용할 수 있다. 그러나 지문패턴의 물리적 복제와 지문 특징점 데이터의 유출을 신경써주어야 한다는 단점이 있다. 이러한 문제점을 해결하기 위하여 본 논문에서는 스마트카드와 지문을 이용한 고도의 개인 확인 시스템을 제안하고자 한다. 제안된 시스템은 변경가능한 암호화 키를 갖는 스마트카드내에 지문정보를 삽입하여 지문정보의 유출을 방지하였다. 제안된 시스템의 성능평가를 위해 체인코드 기반의 지문인식 시스템을 적용하였으며, 다양한 실험을 통하여 제안방법의 타당성을 검증한다.

      • 웹 기반의 안전한 멀티미디어 전자우편 시스템의 설계

        최대영(Dae-Young Choi),박선홍(Seon-Hong Park),박종태(Jong-Tae Park) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.1A

        인터넷의 이용이 급증하면서 여러 가지 다양한 서비스들이 등장하고 있다. 이 중에서도 전자우편은 사용자가 지속적으로 늘어가고 있으며 이들은 보다 다양한 서비스와 안전한 메시지의 송수신을 원하고 있다. 이에 본 논문에서는 일반 사용자들의 웹 브라우저만으로도 간편하게 전자우편을 주고 받을 수 있는 웹 기반의 전자우편 시스템에 전자우편의 보안에 관한 지침인 S/MIME v3을 적용하여 보안 기능을 갖춘 웹 기반의 전자우편 시스템의 구조를 설계하였다. 사용자가 멀티미디어 데이터를 포함한 전자우편을 웹 브라우저에서 작성하여 보내거나 받을 수 있도록 하기 위해 JAVA 언어를 채택하였다. 클라이언트인 웹 브라우저는 JAVA 애플릿을 서버로부터 다운로드하며, 사용자는 이를 통해 메일을 작성하거나 수신된 메일을 받아볼 수 있다. 서버의 JAVA 애플리케이션은 클라이언트의 JAVA 애플릿과 통신하여 사용자가 작성한 전자우편에 S/MIME v3의 알고리즘을 적용하며, 이를 사용자가 원하는 수신자에게로 보낸다. 본 논문에서 제시한 구조가 채택한 S/MIME v3는 표준이 될 가능성이 높으며, 전자우편 이외의 여러 응용에 적용될 수 있다.

      • KCI등재

        플립러닝을 적용한 유아동작교육 수업에서 본 예비유아교사의 경험

        김영주(Kim, Young-Ju),박선홍(Park, Seon-Hong) 학습자중심교과교육학회 2022 학습자중심교과교육연구 Vol.22 No.6

        목적 본 연구는 플립러닝을 적용한 유아동작교육 수업에서 예비유아교사의 경험은 어떻게 나타나는지 알아보고자한다. 방법 이를 위하여 충북소재 전문대학 유아교육과 3학년 학생들 8명을 대상으로 선정하였다. 2019년 9월 3일부터 12월 13일까지 실시하였으며 주 1회 3시간 진행하였다. 수집된 자료는 녹음된 면담내용, 개인저널로 기술하기, 분류하기, 해석하기 세단계로 분석하였다. 본 연구의 타당도를 높이기 위해 삼각기법, 연구자의 편향성을 없애기 위해 끊임없는 반성이 이루어졌고 구성원 검토와 외부연구자 영입을 통해 타당도를 얻고자 하였다. 결과 첫째, 플립러닝을 적용한 유아동작교육 수업에서 본 예비유아교사는 몸을 직접 움직여 문제를 해결하고 짝과 함께 동료 가르치기를 통해 움직임에 대한 즐거움과 유아들에게 동작교육의 필요성을 인식하게 되었다. 둘째, 플립러닝을 적용한 유아동작교육 수업에서 본 예비유아교사 유아동작교육의 태도의 변화는 자기의 동작교수에 대한 자신감과 유아동작 가르침에 대한 나의 만족감이다. 셋째, 플립러닝을 적용한 유아동작교육 수업에서 본 예비유아교사 유아동작교수 지식의 변화는 유아동작교육에 대한 이해와 유아동작의 교사역할을 위한 전문성 획득이다. 결론 플립러닝 교수전략은 교사양성과정에 적용함으로서 효과적인 대학 교수전략의 새로운 대안이 될 것으로 판단된다. Objectives This study would investigate pre-service early childhood teachers’ experience in the class of early childhood movement education applying flipped learning. Methods For this purpose, this study chose 8 juniors in the Department of Early Childhood Education in a college located in the Chungbuk area. This study was conducted from September 3 through December 13, 2019, for three hours once a week. The collected data were recorded interviews and personal journals, which were analyzed in three steps, including description, classification, and interpretation. To increase the validity of this study, a triangular method was employed, and to get rid of the researcher’s bias, constant reflection was made. The validity would be obtained through member check and the recruitment of researchers from outside. Results First, in the class of early childhood movement education applying flipped learning, the pre-service early childhood teachers resolved problems by moving their bodies themselves and recognized the pleasure of movement and the necessity of movement education through teaching peers with partners. Second, in the class of early childhood movement education applying flipped learning, changes in the pre-service early childhood teachers’ attitude to early childhood movement education are confidence in their teaching of movement and satisfaction with their teaching of movements for children. Third, in the class of early childhood movement education applying flipped learning, changes in the pre-service early childhood teachers’ knowledge of their teaching of movements for children are the understanding of early childhood movement education and the acquisition of expertise for the role of teachers of child movement. Conclusions It is judged that the flipped learning teaching strategy will be a new alternative for effective college teaching strategy by applying it to the teacher training course.

      • KCI등재
      • KCI등재

        경기도 일부 초,중,고등학교의 바른양치실천 및 양치시설실태

        이선미 ( Sun Mi Lee ),강부월 ( Boo Wol Kang ),박선홍 ( Seon Hong Park ),이현숙 ( Hyun Sook Lee ),배수명 ( Soo Myoung Bae ) 한국치위생학회(구 한국치위생교육학회) 2012 한국치위생학회지 Vol.12 No.6

        Objectives: This study is designed to survey of proper practice of toothbrushing place in elementary school, middle school and high school in some part of Gyeonggi-Do, and will be utilized for toothbrushing place management. Methods: It was randomly selected, 8 elementary schools, 6 middle school and 6 high school in Gyeonggi-do, surveyed whole students. Survey duration was from May 11th to May 20th in 2011. The surveying paper was consisted of questions of general characteristics, right practice of toothbrushing and toothbrushing after lunch etc. It was done under teacher`s control. The Data was analyzed with SPSSWIN 18.0. Results: Students did toothbrushing 2 times/day. It wasn`t done by Elementary students of 56.3%, middle school students of 68.5%, high school students of 39.3%. It was dominant reason for no brushing that Carrying toothbrush and toothpaste was annoying. When students washed their hands and rinsed their mouth, they used toilet facuet in over than 90% schools. Satisfaction ratio was very low in elementary, middle, high schools. 60% of students wanted to get mouth rinsing place in each school or separately nearby toilet. Conclusions: It was thought by 60% students of elementary, middle, high school that toothbrushing after meals was most important activity. But It was not well done after lunch. When whole student did toothbrushing together, they couldn`t use mouthrinsing place comfortablely. There were no keeping places for toothbrushes. So more attention should be payed to make plenty mouthrinsing places and manage them well.

      • 만성중이염의 골도청력변화

        박선홍,노용훈,이도용,나한조,김용기,최봉남,도남용 朝鮮大學校 附設 醫學硏究所 1996 The Medical Journal of Chosun University Vol.21 No.1

        We have usually experienced bone conduction impairment in chronic otitis media, but it is unclear that raised bone conduction threshold is due to the reflection of cochlear dam- age and / or Carhart effect ( an artificial elevation of bone conduction threshold due to conductive defect ) or both. The purpose of this study is to verify the influence of the artificial elevation of the bone conduction threshold in chronic otitis media and to estimate Carhart effect. A total of 336 cases of tympanoplasty with unilateral chronic otitis media without any other causes of sensorineural hearing loss was studied. The average threshold levels of the bone conduction in diseased ears ranged from 18.5dB at 4kHz to 12.1dB at 250Hz The longer duration of the disease, the larger perforation size, the more severe damage of the middle ear structure and the presence of the cholesteatoma made bone conduction threshold increased. The postoperative thresholds of bone conduction were Improved in 36 cases (40.4%) of the 89 cases that underwent operation with type I tympanoplasty technique without electrie drilling. The degree of the maximal improvement was 14.3dB at 2000Hz and the minimum was 8.8dB at 250Hz. but these result did differ from a statistically significant degree. The result suggest that the bone conduction threshold in chronic otitis media is elevated artificially by conductive defect and improved by successful reconstructive surgery.

      • 비강 및 부비동 종양에서의 종양혈관형성에 관한 면역조직화학적 연구

        도남용,노용훈,박선홍 조선대학교 부설 의학연구소 2002 The Medical Journal of Chosun University Vol.27 No.1

        Background and Objectives : Angiogenesis is essential for the growth of solid tumors. Microvessel density(MVD), which represent a measure of tumor angiogenesis, have been found to have prognostic significance in many tumor types for predicting an increased risk of metastasis. However, the significance of angiogenesis in sinonasal malignant tumor remains controversial. The purpose of this study was to asses the tumor vascularity using the highly specific endothelial cell marker CD34, and the expression of its related protein p53, in sinonasal malignant tumors. Materials and Methods : The study samples were obtained after surgical removal of 27 cases of inverted papilloma(IPs), 5 cases of IPs with malignant transformation(IP-MT), 16 cases of squamous cell carcinoma(SCC) in sinonasal cavity. Microvessels were stained with anti-CD34 and p53 expressions were assessed by immunohistochemical staining. Results : The degree of tumor angiogenesis in squamous cell carcinoma group was higher than in inverted papilloma group, and which reached at highest level in IP-MT(p<05). The p53 expressions were increased as tumor progressed, which was statistically significant also(p<05). Significant correlation between MVD and p53 expressions was observed in IP(p<05) but there were no correlation in IP-MT and SCC. Conclusions : These results suggest that overexpression of p53 and MVD in the sinonasal tumors seemed to be associated with tumorigenesis but further studies on tumor angiogenesis of sinonasal tumors are needed before it can be adopted as a prognostic marker.

      • 비·부비동 종양의 신생혈관 형성에서 COX-2 및 VEGF의 역할

        도남용,박성용,조성일,윤혁수,박선홍,박영균,권대승,임성철 조선대학교 2003 The Medical Journal of Chosun University Vol.28 No.1

        Background and Objectives : COX-2, the inducible form of cyclooxygenase(COX), is upregulated in transformed cells and in malignant cells, which have important roles in promotion of colorectal carcinogenesis, invasiveness and angiogenesis. Vascular endothelial growth factor(VEGF) may act as endothelial cell mitogen in various cancer tissues. It will increase tumor growth and angiogenesis. Aims of this study were to asses COX-2/VEGF expression and it's clinical correlation in sinonasal tumors and to investigate the effects on angiogenesis also. Materials and Method : The study samples were obtained from surgical removal of 27 cases of inverted papilloma(IPs), 5 cases of IP with malignant transformation(IP-MT), 16 cases of Squamous cell carcinoma(SCC) in sinonasal cavity COX-2 and VEGF expressions were assessed by immunohistochemical staining. Synchronism of COX-2/VEGF expression in one tumor cell was demonstrated with double immunofluorescence technique. Results : The expression rates of COX-2 were 37% in IP, 80% in IP-MT and 100% in SCC. The positive rates of VEGF were 29 6% in IP, 100% in IP-MT and SCC. COX-2 and VEGF expressions were increased as tumor progressed, and there is a positive correlation between COX-2 &EGF expressions. All clinical features which were compared are not associated with COX-2 &EGF expressions except malignant change in IP(p=0 028). Synchronism of COX-2/VEGF expressions was noted in all positive immunostaining samples. Conclusion : These findings suggest the role of COX-2 pathway could be involved in sinonasal tumor angiogenesis, which is modulated by VEGF COX-2 may act as autocrine factor in VEGF expression. There is a potential role for selective COX-2 inhibitors in the treatment of these lesions.

      • KCI등재

        보건소를 이용하는 지역주민의 건강 행위와 건강관련 체력간의 관계

        전미양,최명애,이인숙,김태수,김의숙,박선홍 대한보건협회 2002 대한보건연구 Vol.28 No.3

        The purpose of this study is to identify relationship health behavior and health related physical fitness in order to provide the basic data for health promotion program for community people. The study was conducted 299 people, during the period from June 1, 2000 to October 30, 2000. The result are as follows. 1. Female comprised was 63.2%(189), while male comprised 36.8%(110). The age range of the subject were from 21 to 59 years old. The subject were aged 30s group 52.5%, 40s group 29.1%, 50s group 12.7%, 20s group 5.7%. Twenty subjects (6.7%) had experience smoking and one subject (0.3%) in female and nineteen subjects (6.4%) in male. Seventy-five subjects (25.1%) had experience drinking and twenty-nine subjects (9.7%) in female, and forty-six (15.4%) in male subjects. ninety-nine subjects had exercise and sixty subjects (20.1%) in female subjects and thirty-mine subject (13%) in male. 2. Body fat and flexibility were higher in female than male subjects, but cardioresperatory endurance, muscular strength and muscular endurance were higher in male than female subjects. 3. There were significant differences in body fat and muscular endurance between age group in both gender subjects, and in cardioresperatory endurance and muscular strength between the age group in male subjects. 4. No significant differences health related fitness between non-smoking and smoking group in both gender subjects. 5. No significant differences health related fitness between non-alcohol and alcohol group in both gender subjects. 6. For female subjects, muscular strength, muscular endurance and flexibility of the exercise group were significantly higher than those of the non exercise group. for male subjects, cardiorespiratory endurance of the exercise group were significantly higher than those of the non exercise group.

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