기계학습과 초음파를 이용한 전방 노면 종류 추정

김민현(Min-Hyun Kim),박종찬(Jongchan Park),최동걸(Dong-Geol Choi),최세범(Seibum Choi) 한국자동차공학회 2020 한국 자동차공학회논문집 Vol.28 No.1

강릉 선교장 장서의 서지학적 고찰

김민현(Kim, Min-hyun) 한국학중앙연구원 2018 장서각 Vol.0 No.39

장서각에서 수집한 강릉 선교장의 장서를 서지학적으로 분석한 결과 經部 60종 220점, 史部 124종 738점, 子部 135종 736점, 集部 204종 865점, 성책고문서 42종 42점으로 총 565종, 2601점이 확인되었다. 주제별 분석결과 경부는 易類와 四書類, 小學類, 사부는 政法類와 地理類, 자부는 術數類와 類書類 및 醫家類, 藝術類, 집부는 別集類와 總集類, 小說類의 비중이 컸다. 판종별 분석결과는 木板本 > 筆寫本 > 金屬活字本 > 石印本 > 拓印本 > 木活字本 > 謄寫本 > 新式印刷本 > 鈐印本·複寫本의 순으로 비중이 컸다. 시기별 분석에서는 15세기 1종 3점, 16세기 5종 36점, 17세기 13종 102점, 18세기 21종 185점, 19세기 83종 557점, 20세기 90종 231점으로 모두 200종 1114점의 간행시기를 판별하였으며, 연대가 불분명한 그 외의 자료들은 조선후기 혹은 중국 청대에 형성된 자료들로 생각된다. 장서인 및 장서기를 통해 장서의 형성과정을 추적한 결과 선교장의 장서는 강릉, 전주, 서울 등 여러 지역을 통해 구축되었음을 확인할 수 있었다. 그 중에서도 서울과의 교류가 막대한 영향을 끼쳤는데, 선교장은 19세기에 관직을 통해 서울에 진출하여 당대의 벌열 및 유명 장서가들과 교류하고 막강한 자금력을 바탕으로 대규모의 장서를 구축하였다. 거질의 중국본과 예술류, 유서류, 소설류 등에 대한 선호에서 볼 수 있듯 장서의 구성에 있어서도 당시 경화사족의 영향이 확인된다. This study analyzed bibliographically the books housed at Seongyojang in Gangneung and collected by Jangseogak and found that there were total 2601 books under 565 categories including 220 under 60 Gyeongbu categories, 738 under 124 Sabu categories, 736 under 135 Jabu categories, 865 under 204 Jipbu categories, and 42 under 42 old Seongchaek document categories. The analysis results by the topic show that almanacs, history, and Small Learning books recorded a high percentage in the Gyeongbu categories, that politics & laws and geography books did in the Sabu categories, that tactics, Yuseo, medicine, and art books did in the Jabu categories, and that individual collections of works, collective collections of works and novels did in the Jipbu categories. The analysis results by the printing type show that the wood block types were the most, being followed by manuscript, Gimsok printed, Seokin, Cheokin, Mok printed, transcription, new - style printed, and sealed·copied types in the order. The analysis results by the period reveal that there were total 1114 materials under 200 categories including three under one category from the 15th century, 36 under five categories from the 16th century, 102 under 13 categories from the 17th century, 185 under 21 categories from the 18th century, 557 under 83 categories from the 19th century, and 231 under 90 categories from the 20th century. The materials whose periods were not certain seem to have been created in the latter part of Joseon or during Qing Dynasty. The investigator traced the creation processes of the books through Jangseoin and Jangseogi and found that the books housed at Seongyojang were established in various regions including Gangneung, Jeonju and Seoul. Seongyojang entered Seoul through public service in the 19th century, had exchanges with distinguished families and well - known book collectors those days, and established a huge collection of books based on its massive funds. It was under the influence of Gyeonghwasajok for the composition of its books including the large sets of Chinese books and its taste for art, Yuseo and novel books.

환경의식이 친환경 스포츠의류 브랜드이미지와 구매태도에 미치는 영향

김민현(Kim, Min-Hyun),권웅(Kwon, Woong) 한국웰니스학회 2017 한국웰니스학회지 Vol.12 No.2

본 연구는 대학생들을 대상으로 그들이 인지하는 환경의식이 친환경 스포츠의류 브랜드이미지와 구매태도에 어떠한 영향을 미치는지를 확인함으로써, 친환경 스포츠의류 브랜드의 시장가능성을 제안해 보고, 이를 바탕으로 소비자들의 환경의식에 따른 친환경 스포츠용품 이미지와 구매태도간의 관계를 고찰하여 스포츠용품 기업들의 친환경 마케팅활동을 위한 기초자료로 제공하는데 있다. 이에, 대학생 311명의 자료를 가지고 SPSS 22.0과 AMOS 22.0 프로그램을 이용하여 빈도분석, 기술통계 분석과 신뢰도 분석, 상관관계분석, 확인적 요인분석, 그리고 단순회귀 분석을 실시하여, 도출된 연구결과는 다음과 같다. 첫째, 환경의식은 친환경 스포츠의류 브랜드이미지에 유의한 영향을 미치는 것으로 나타났다. 둘째, 환경의식은 친환경 스포츠의류 구매태도에 유의한 영향을 미치는 것으로 나타났다. 셋째, 친환경 스포츠의류 브랜드이미지는 구매태도에 유의한 영향을 미치는 것으로 나타났다. This study suggests the market potential of an eco-friendly sports apparel brand by examining how the perception of the environmental consciousness of the eco-friendly sports apparel brand affects the brand image and the purchasing attitude. The purpose of this study is to provide basic data for eco-friendly marketing strategies of sporting goods companies. Statistical analysis, descriptive statistics, reliability analysis, correlation analysis, and simple regression analysis were conducted using SPSS 22.0 and the Amos 22.0 program with data from a sample of 311 college students. This study had the following significant results. First, the perceived environmental consciousness had a significant effect on the image of the eco-friendly sports apparel brand. Second, the perceived environmental consciousness had a significant effect on the purchase attitude toward the eco-friendly sports apparel. Third, the image of the eco-friendly sports apparel brand had a significant effect on purchase attitude.

능동 음파의 반사 신호와 기계학습을 이용한 테스트 벤치에서의 비접촉기반 재질 인식

김민현 ( Min-hyun Kim ),강지훈 ( Jihoon Kang ),정중은 ( Joongeun Jung ) 한국정보처리학회 2023 한국정보처리학회 학술대회논문집 Vol.30 No.2

비접촉 음파 센서와 기계학습을 결합하여 도로 표면의 투명한 블랙아이스 감지 및 노면 분류 97%의 정확도를 달성한 새로운 접근 방법을 제안한다. 개발된 시스템은 블랙아이스를 포함한 다양한 물질의 반사 특성을 분석하여 미끄러운 도로 상황을 실시간 감지 및 예측이 가능하여 도로 안정성을 향상한다. 본 연구에서는 테스트 벤치와 투명하고 미끄러운 물질을 이용하여 블랙아이스를 감지할 수 있는 기술의 정확도를 비교하며, 실험 결과를 통해 제안된 블랙아이스 감지 방법의 타당성을 입증하고자 한다.

1411년 제주도 간본 『논어(論語)』의 서지학적 연구

김민현(Kim, Min-hyun) 한국학중앙연구원 2019 한국학 Vol.42 No.1

유아 수영지도에 있어 칭찬과 질책에 따른 운동학습 효과 비교 연구

김민현(Kim Min-Hyun) 한국체육과학회 2003 한국체육과학회지 Vol.12 No.2

This Study has been carried out to find an motor learning effect to prase and reproof in infants swimming instruction. In was experiment in four groups(praise group, reproof group, prise-reproof carry out at the same time group and controlled group)according to the instruction method of praise and reproof. To achieve the study purpose, a cluster sampling was employed for the experiment target select 80 infants of 6-7 yeards old. The training was done for 4 weeks to the each 1 hours (five times / week) by each different 4 experimental condition. After training 4 weeks of crawl, statistics of results is carried out to compare ANOVA(repeated measure of analysis). The results show the were significant change as fellows 1. Kick record : groups F(3, 76)=4.743, p<.01, treatment F(1, 76)=449.012, p<.001, groups×treatment interactions F(3, 76)=16.073, p<.001. 2. Crawl record : groups F(3, 76)=9.757, p<.001, treatment F(1, 76)=920.916, p<.001, groups×treatment interactions F(3, 76)=35.021, p<.001. Conculsively instruction method given a proper reproof and prise at the same time will be the best study effect.

현가장치의 예견 제어를 위한 초음파 센서 모듈

김민현(Min-Hyun Kim),최세범(Seibum Choi) 한국자동차공학회 2017 한국 자동차공학회논문집 Vol.25 No.6

태권도 코치에 대한 신뢰, 선수만족, 운동몰입 및 경기력의 관계

김민현(Kim, Min-Hyun),정호원(Jeong, Ho-Won) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.1

The purpose of this study was to examine the causal relationship among athlete trust of a Taekwondo-coach, athletes’ satisfaction, exercise commitment and performance. For achieving this purpose, a total of 265 questionnaire were distributed to Taekwondo-athletes who participated in the 39th national collegiate competition in South Korea. Data analysis was perforemed using PASW 19.0 and AMOS 20.0 for testing Correlation, Validity and Reliability, and Structural Equational Model The results indicated that 1) building trust in Taekwondo- coach increased athletes’ satisfaction; 2) increasing athletes’ satisfaction lead to the high level of exercise commitment; and 3) the high level of exercise commitment produced the high level of performance. These results suggested that coach should keep good relationship with athletes, improve athletes’ satisfaction, and encourage athlete to commit to exercise. By doing so, coach can produce better performance of athletes.

운동 참여도에 따른 정신 건강의 효과 비교

김민현(Min Hyun Kim) 한국사회체육학회 2001 한국사회체육학회지 Vol.16 No.-

The purpose of this study is: (1) to testify the significant differences of body composition factors depending on sex and age; and (2) to investigate the correlation, if any, of the two different methods used for the research. The two methods are STM(the skinfold thickness method) and BIA(the bioelectrical impedance analysis), the most popular techniques currently used in the field. The representative sample group consists of 172 middle school students and 210 high school students, who live in Seoul and whose age distribution covers from thirteen to eighteen. The research based its comparison and analysis on the basic physical constitution factors, percent body fat, body fat mass, and fat free mass, and yielded the following results: First, the height and weight of the sample group increased in proportion to their ages, regardless of sex. Second, in case of the body fat mass, the average rate of the female sample group was higher than that of the male ones, and increased moderately in proportion to age. Both of the methods produced the significant differences depending on age and sex(p<.05). Third, the female sample group contained more body fat mass than the male counterpart, and the body fat mass increased in proportion to age. Both of the methods produced the significant differences depending on age and sex(p<.05). Fourth, the male sample group contained more fat free mass than the female counterpart. The fat free mass increased in proportion to age, and that conspicuously in case of the male sample group. Both of the methods produced the significant differences depending on age and sex(p <.05). Fifth, the outcome of the percent body fat, body fat mass, and fat free mass, resulted from STM and BIA proved distinct correlation between the two methods(r=.86,.90,.95). In sum, adolescence is the most prominent period in terms of the physical maturation and hormone secretion. The period experiences the remarkable shift in the physical constitution and articulates distinct differences of the body composition factors. Accordingly, the period deserves critical attention and requires systematic analysis and evaluation. The two methods have legitimated their usage as reliable techniques, with the visible presence of a substantial body of work engaged with the techniques. My study is designed to be part of the attempt to articulate their credibility as a set of techniques in analyzing and evaluating the body composition factors.

DoS 공격에 강한 무선 랜 인증 프로토콜

김민현(Min-Hyun Kim),이재욱(Jae-Wook Lee),최영근(Young-Geun Choe),김순자(Soon-Ja Kim) 한국정보보호학회 2004 정보보호학회논문지 Vol.14 No.5

무선 랜은 액세스 포인트를 경유하여 인터넷을 사용할 수 있기 때문에 접근 제어의 중요성을 가지고 있다. 또한 무선 랜을 이용하기 위해서는 EAP의 인증과정을 거치게 된다. 이러한 액세스 포인트 접근과 인증 과정에 대한 치명적인 공격 중의 하나가 DoS(Denial of Service) 공격이다. 즉 악의적인 공격자가 액세스 포인트의 접근을 막거나 또는 인증 과정에서 서버의 메모리 및 중앙처리장치의 계산 능력 등을 강제적으로 소비시킴으로써 합법적인 사용자가 서비스를 받지 못하게 한다. 본 논문에서는 무선 랜에 대한 DoS 공격을 접근 제어, 자원의 할당, 인증프로토콜 상에서의 공격으로 나누어 각 공격에 대한 방어법을 제시하였다. 액세스 포인트 접근에 대한 문제는 사전 검증 단계 및 보안 수준 변수에 의해, 자원의 할당에 대한 공격은 부분적인 stateless 프로토콜에 의해, 프로토콜상의 약점은 타임스템프와 접근 제한 변수에 의해 개선하였다. A Wireless Lan has an importance of access control, because we can use wireless Internet via AP(Access Point). Moreover, to use wireless LAN, we will go through authentication process of EAP. DoS(Denial of Service) attack is one of the fatal attack about these AP access and authentication process. That is, if malicious attacker keeps away access of AP or consumes memory of server and calculation ability of CPU and etc. compulsorily in authentication process, legal user can't get any services. In this paper, we presents the way of protection against the each attack that is classified into access control, allocation of resource, attack on authentication protocol. The first thing, attack to access control, is improved by pre-verification and the parameter of security level. The second , attack of allocation of resource, is done by partial stateless protocol. And the weak of protocol is done by time-stamp and parameter of access limitation.