Pattern Search를 이용한 축구전용 경기장의 최적의 조명기구 위치 산정

權炳徽,崔棅淑,徐梵寬 홍익대학교 산업기술연구소 2003 産業技術 Vol.13 No.-

One essential contribution to a successful soccer game, which is still not always recognised as such, is the standard and quality of the lighting system. This is not only for TV transmissions, but also for the general practising of the sports. But, on too many occasions, sport activities and events have been allocated with insufficient or Inappropriate lighting system. inadequate lighting spoils not only the pleasure and the interests of active sportsmen, but also the comfort of the spectators in both the stadium and at home watching their TV. So this paper newly proposes the algorithm for searching of luminaire position which can be applied to the design stage.

교양체육으로서의 댄스 스포츠 활성화를 위한 기초연구

權炳善,李起和,韓惠媛 홍익대학교 경영연구소 2002 경영연구 Vol.27 No.-

The purpose of this study is to understand the value and effect of Dance Sport as Sport for all, and to activate Dance Sport for university student. The respondents for this study were sampled among 600 university students in Seoul and the final analysis included responses from 568 respondents. The statistical methods employed in this study are frequency analysis and chi-square test. Results obtained from this research are as followed: 1. It is needed to unify the term, "Dance Sport" for the activation of Dance Sport. 2. University students recognize the value and effects of the Dance Sport as Sport For All positive through the class and most of them want to attend advanced class of Dance Sports. 3. In order to activate Dance Sport as Sport For All, the change of the public recognition of Dance Sport, the proper public information of the government, and the educating qualified leaders are urgently asked.

NMF 기반 LDA 혼합 알고리즘을 이용한 실시간 얼굴인식 시스템에 관한 연구

권병수,강대성 東亞大學校附設情報技術硏究所 2005 情報技術硏究所論文誌 Vol.12 No.2

In this paper, we propose a new NLM(NMF-based LDA Mixture) algorithm for real-time face recognition system. This system greatly consists of the two parts: 1) face extraction part; 2) face recognition part. In the face extraction part we applied subtraction image, color filtering, eyes and mouth region detection, and normalization method, and then in the face recognition part we used NLM in extracted face candidate region images. The existing recognition system using only PCA(Principal Component Analysis) showed low recognition rates, and it was hard in the recognition system using only LDA(Linear Discriminants Analysis) to apply LDA directly when the training set is small. To overcome these shortcomings, we reduced dimension as the matrix that had non-negative value to be different from former eigenfaces and then applied LDA to the matrix in the proposed system. We have experimented using self-organized DAUFace database and ORL database offered by AT&T laboratory in Cambridge, U.K. to evaluated the performance of the proposed system. The experimental results showed that the proposed method outperformed PCA, LDA, ICA(Independent Component Analysis) and PCA-based LDA mixture method within the framework of recognition accuracy.

남, 녀 체육교사의 교육과정 운영에 대한 관심도와 활용도 분석

權炳善 홍익대학교 경영연구소 2001 경영연구 Vol.26 No.-

The study was to define th relationship of interests of physical education teachers and utilization level in curriculum implementation. For this research, 910 teachers' questionnaires were extracted. And among them 831 questionnaires were used for analysis and the percentage of questionnaire recovery was 83%. The Questionnaire was composed of two parts. One was teachers' interests and utilization of PE curriculum of Hall, George, and Ruhterford(1977) and the other was teacher's interests in revision of PE curriculum of Moore, Wideman, and Dilling(1984). In the research, the questionnaire was self-administration and multiple regression analysis was used to analyze data with SPSS/PC+ for Windows and significant level(α) was P < .05. From the analysis of the data this study reached the following conclusion: First, 500 male teachers(81.8%) and 183 female teachers(83.2%) show the highest interests in indifferent level. Second, by analyzing the interest in the seven sub factor of PE curriculum, the more interests the teacher has for PE curriculum, the higher level the teacher is placed for utilization of PE curriculum.

소프트웨어 재사용의 전략적 추진 방안에 관한 연구

권성우,이병찬 啓明大學校 産業經營硏究所 1997 經營經濟 Vol.30 No.2

SUMMARY Since the late 1960s when the discussion about software crisis - the problem of building large, reliable software system in a controlled and cost-effective way - was risen, many methodologies have been introduced to solve that problem, and software reuse can be regarded as one of these efforts. Software reuse is using existing software components during the construction of a new software system. The types of components that can be reused are not limited to source code but rather may include design specification, documentation, module-level implementation, a variety of knowledge from all the development phases, and so on. In spite of its promise, software reuse has failed to become standard pratice for software construction. In light of this failure, the computer science community has renewed its interest from the late 1980s. Most of the research has focused only on the technical aspect of software reuse since then, and little attention to managerial considerations. A successful adoption of new technology in an organization, however, cannot be achieved only with technology itself, but rather together with managerial aspects. Therefore, we tried to find a business considerations for strategic implementation of software reuse. To achieve this goal, we first study the concept, history, and the effects of strategic implementation of software reuse from the point of management strategu, motivation, and organization structure. Finally, the case of Motorola company was analyzed. We tried to propose managerial guidelines for strategic implementation of software reuse, and this will be helpful to make plans for that and to decrease the chance of trial and error during the adoption phases of new technology. Since the late 1960s when the discussion about software crisis - the problem of building large, reliable software system in a controlled and cost-effective way - was risen, many methodologies have been introduced to solve that problem, and software reuse can be regarded as one of these efforts Software reuse is using existing software components during the construction of a new software system. The types of components that can be reused are not limited to source code but rather may include design specification, documentation, module-level implementation, a variety of knowledge from all the development phases, and so on. In spite of its promise, software reuse has failed to become standard practice for software construction. In light of this failure, the computer science community has renewed its interest from the late 1980s. Most of the research has focused only on the technical aspect of software reuse since then, and little attention to managerial considerations. A successful adoption of new technology in an organization, however, cannot be achieved only with technology itself, but rather together with managerial aspects. Therefore, we tried to find a business considerations for strategic implementation of software reuse. To achieve this goal, we first study the concept, history, and the effects of software reuse. And then we consider the managerial aspects of strategic implementation of software reuse from the point of management strategy, motivation, and organization structure. Finally, the case of Motorola company was analyzed. We tried to propose managerial guidelines for strategic implementation of software reuse, and this will be helpful to make plans for that and to decrease the chance of trial and error during the adoption phases of new technology.

부착증식 공정에서 여재의 개선에 따른생물막 특성

권재혁,김병욱,조원태,임재명 江原大學校 附設 環境硏究所 1999 環境硏究 Vol.16 No.-

This study was conducted to investigate the performance and biofilm characteristics of modified media(RUN 2) in comparison with conventional media(RUN 1) on wastewater treatment system. The results were as follows ; At four different HRT of 6, 12, 18 and 24hr, BOD removal efficiency was 65.5, 85.6, 92.2 and 91.9% in RUN 1 and 70.7, 88.7, 94.7 and 95.9% in RUN 2. Biofilm characteristics in each treatment system could be classed as following : i) In RUN 1, the biomass was 2.54 to 3.01㎎/㎥ and its thickness was 342 to 907μm and in RUN 2, this was 560 to 1,180μm and that was 2.54~3.01㎎/㎥. ii) The biofilm dry density was 32.60㎎/㎥ in RUN 1 and 39.06㎎/㎥ in RUN2, respectively. iii) The VSS contents pe unit area were 2,675~2,822㎎VSS/㎠ in RUN 1 AND 2,954~3,123㎎VSS/㎠ in RUN 2. In consider of organic removal rates and biofilm attachment characteristics, it was proved that modified media in RUN 2 was higher than conventional media in RUN 1.

大學生의 스포츠 參與 形態가 자아 개념에 미치는 影響

權炳善 홍익대학교 경영연구소 2003 경영연구 Vol.28 No.-

The purpose of this study was to examine the influence of self-concept with sports participation type of university students. The main purpose of this study was to examine the influence of sports participation type(Skill sport, Combat sport, Conquest sport, Eurhythmics) on psychological character by comparing the difference of physical self-efficacy, self-efficacy and self-esteem, also, it was the correlation sports participation type of psychological character among university students. The data was subject to T-test, One Way ANOVA, Analysis of Covariance(ANCOVA). Multiple Classification Analysis (MCA), Multiple Regression Analysis using the Windows SPSS PC+ 7.0 program. The level of significance of all hypothesis tests was α=0.5. From the analyses of the date, this study reached the following conclusions : Frist. the sports participation type among university students has an influence on the perceived physical ability. In detail, there is difference in the perceived physical ability according to the sports participation. In order combat sport, conquest sport. skill sport, eurhythmics is the highest. Second, the sports participation type among university students has an uninfluence on the physical self-presentation confidence. Third, the sports participation type among university students has an influence on the physical self-efficacy. In detail, there is difference in the physical self-efficacy according to the sports participation, and combat sport, conquest sport, skill sport, eurhythmics is the highest. Fourth, the sports participation type among university students has an influence on the self-efficacy. In detail, there is difference in the self-efficacy according to the sports participation, and combat sport, conquest sport, skill sport, eurhythmics is the highest. Fifth, the sports participation type among university students has an influence on the self-esteem. In detail, there is difference in the self-esteem according to the sports participation, and combat sport, conquest sport, eurhythmics, skill sport is the highest, sixth, the physical self-efficacy, self-efficacy among university students has an influence on the self-esteem. In detail, there is perceived physical ability, physical self-presentation confidence, self-efficacy of sports participation type among university students has high correlation on the self-esteem.

고성능 유도 전동기를 위한 퍼지 속도 제어기

권병휘,全光鎬,崔秉淑,鄭雨均 홍익대학교 산업기술연구소 1997 産業技術 Vol.7 No.-

In this dissertation a novel speed control system that implements the fuzzy logic controller(FLC) is proposed. The proposed FLC used the speed error its rate of change, and the drive current as three fuzzy variables. The real command output current is chosen by the defuzzification of fuzzy output extracted from the fuzzy control rules. The flex and the torque of the induction motor are estimated using the dynamic model with an excellent dynamic response over a wide speed range and with the rotor flux field-oriented scheme of the decoupling characteristics The performance of this control system is substantiated by computer simulations.

Streptomyces sp. YJB-599가 생산하는 Genistein의 분리 및 정제

함병권,배동훈,유주현 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.3

토양으로부터 세포독성물질을 생산하는 strain No. 5-99 균주를 분리하였다. 본 균주의 세포벽 성분의 diaminopimelic acid(DAP)와 아미노산을 분석하여 본 결과, LL-DAP만을 함유하고 있었고, glycine이 검출된 것으로 보아 glycine으로 연결된 peptide를 가지는 peptidoglycan type A3이고 cell wall chemotype Ⅰ의 방선균인 Streptomyces sp.로 확인되었다. 따라서 본 균주를 Streptomyces sp. YJB-599라 명명하였다. 본 균주가 생산하는 활성물질은 용매추출 및 silica gel column chromatography를 이용하여 정제되었으며, 최종적으로 침상의 백색결정으로 분리하였다. 기기분석과 database로 구조분석을 행한 결과, 본 물질은 genistein으로 밝혀졌다. A cytotoxic material was produced by strain No. 5-99 which was isolated from soil. Analyzing the cell wall components, LL-diaminopimelic acid was identified. From the existance of glycine in the cell wall, this strain was identified to Streptomyces sp. which has cell wall chemotype I and peptidoglycan type A3 connected by glycine. So, we named this strain to Streptomyces sp. YJB-599. The Active material was purified through solvent extraction, silica gel column chromatography and crystallized to needle-shaped white crystal. Analyzing the structure of this crytal by instrumental analysis and database, it was determined to genistein.

알코올리즘 선별검사 도구들의 진단 효율 비교

박병강,이동배,이태용,조영채,권윤형 충남대학교 의과대학 지역사회의학연구소 2000 충남의대잡지 Vol.27 No.1

To compare the clinical usefulness of four alcoholism-screening tests frequently used in Korea such as MAST, NAST, AUDIT, CAST, 96 drinking males were given diagnostic interview based on DSM-IV criteria and scores from four tests were obtained and analyzed. Of 96 subjects, 52.1% were normal without drinking problems, 38.5% with alcohol abuse and 9.4% with alcohol dependence. In terms of reliability of items in screening tests, four items in MAST were not found to have statistically significant item-total correlation. The appropriate cut-off value for screening tests to detect alcohol use disorders were above 15 points in AUDIT, above 5 points in MAST, above one item in NAST and above 2 items in CAGE. In terms of sensitivity for detection of alcohol use disorders, NAST was highest with 93.5%, and specificity, CAGE was highest with 90.0%. Considering the lowest sensitivity of 76.0% in CAGE and 76.J% of specificity in MAST, AUDIT and NAST were the most appropriate in screening alcohol abuse. The appropriate standard values for screening alcohol dependence were above 26 pants in AUDIT, above 13 points in MAST, above 5 items in NAST, and above 3 items in CAGE. In screening alcohol dependence AUDIT had the highest sensitivity of 100.0%, and both AUDIT and NAST had the highest specificity of 94.3%, respectively. The sensitivity of three screening tools except AUDIT were the same with the value of 88.9% and therefore AUDIT were the most appropriate in detecting alcohol dependence taking into consideration the relatively low specificity of 85.1% in CAGE.