보문 : 닮음 법칙에 의한 굽힘 및 드레이프 형상의 해석

서정권 ( Jung Kwon Suh ),이정욱 ( Jung Uk Rhee ) 韓國衣類學會 1996 한국의류학회지 Vol.20 No.6

QoS와 신뢰성을 제공하는 확장성 있는 오버레이 멀티캐스트

이춘성,송정욱,최병욱,한선영,Rhee, Choon-Sung,Song, Jung-Wook,Choi, Byoung-Uk,Han, Sun-Young 한국정보처리학회 2006 정보처리학회논문지 C : 정보통신,정보보안 Vol.13 No.6

본 논문에서는 확장성 있고 신뢰성 있는 오버레이 멀티캐스트를 지원하기 위하여 새로운 멀티캐스트 트리 구성 방법과 지역적인 멀티캐스트를 도입하였다. 본 논문에서 제안하는 구조는 멀티캐스트 네트워크와 멀티캐스트를 지원하지 않는 네트워크가 혼합된 환경에서 멀티캐스트소스로부터 사용자들에게 스트리밍 데이터를 효율적으로 전달할 수 있다 새로운 멀티캐스트 트리 구성 방식은 서브넷에 릴레이가 존재하지 않는 경우에 최적의 조건인 원격 릴레이와 접속을 가능하게 한다. 또한, IPv6 헤더의 Traffic Class에 새로운 서비스 타입을 정의하여 릴레이에서 선택적인 FEC 적용과 차별화 된 전송을 가능하게 하였다. 우리가 제시한 해결책의 효과를 검증하기 위하여, 실제 서비스 환경과 유사한 환경을 시뮬레이터로 구현하고 테스트하였으며, 그 테스트 결과는 전통적인 유니캐스트 접근 방식과 기존의 오버레이 멀티캐스트 방식보다 훨씬 더 효율적인 것으로 판명되었다. In order to support overlay multicast with scalability and reliability, in this paper, we introduced a new multicast tree construction method and a regional multicast. The architecture we introduce efficiently transmits streaming data to the users from multicast source in an environment in which non-multicast network and multicast network. The new multicast tree construction method enables the connection with a remote relay which is an optimum condition in case there is no relay in subnet. Besides, by defining a new service type to traffic class of IPv6 header, a selective adoption or FEC and a distinctive transmission became possible. In order to verify the effect of the solution we suggested, we embodied an environment which is similar to the actual service environment by a simulator and tested it. The result of the test shows that the proposed method is more efficient than the traditional unicast approach method and the existing overlay multicast.

의복의 3차원 형상 계측에 관한 연구 -플레어 스커트의 헴라인 형상에 미치는 플레어 양의 영향-

서정권,이정욱,Suh, Jung-Kwon,Rhee, Jung-Uk 한국섬유공학회 1996 한국섬유공학회지 Vol.33 No.11

The purpose of this paper is to identify the characteristics of three-dimensional shape of flared-skirts by employing a three-dimensional shape measuring equipments designed for this study. To achieve this purpose, this study examines the effects of hem-line shape of flared-skirts by using different flare ratio, that is, waist size and skirt length remain constant while hem-line varies from 3 times to 5 times the waist size, respectively. The skirts were constructed by three kinds of fabrics under the same conditions. The wave-height in the shape of hem-line tended to increase as the flare ratio increased. The number of nodes highly was correlated with the flare ratio, but significant differences were little shown in the types of samples. As a result, it was found that as the flare ratio increased, regularity and uniformity of node seemed to be diminished. The silhouette index and calculated silhouette angle of skirt were smaller as the amount of flare increased. It should be noted that the silhouette index and silhouette angle were represented as the ratio of a width of skirt appeared under the shapes of hem-line and that the silhouette angles were obtained by measuring the angles of a side line. Finally, it was concluded that the increase in the flare ratio had an effect on those in the shape of hem-line and silhouette of flared-skirt.

지능형 상황인식 시스템을 통한 수면 환경 개선

신성윤(Seong-Yoon Shin),백정욱(Jung-Uk Baek),이양원(Yang-Won Rhee) 한국컴퓨터정보학회 2010 한국컴퓨터정보학회 학술발표논문집 Vol.18 No.2

작금의 현대 사회 사람들은 바쁜 일상생활로 인해 짧아진 수면과 불면증 등의 각종 수면장애를 겪고 있으며, 여러 가지의 요소로 인하여 수면의 방해를 받게 되면, 여러 질병 및 생활 장애를 겪을 수 있어 수면의 중요성은 날로 주목받고 있다. 본 논문에서는 수면을 이루는 침실의 수면 환경 데이터를 수집하여 얻어진 조건 데이터들과 수면간의 관계를 분석하고 이를 바탕으로 시뮬레이션 모델을 추출하여 개개인에 따른 최적의 환경을 제공할 수 있다. 따라서 수면 과정에 따라 신체의 감각 및 자극에 대한 반응을 알고, 사람의 신체 상황에 따른 차이점 및 안정적인 패턴 및 조건을 정의하며 수면 패턴을 분석 및 솔루션 제공을 할 수 있다. 또한 차후에는 수면의 특정 상황만 아니라 식사, 출근, 등과 같은 유기적인 생활(유비쿼터스 환경)의 한 부분에도 상황에 따른 적절한 실내 환경 변화를 제공해주어서 좀 더 쾌적한 일상생활을 영위할 수 있도록 도움을 주게 되는 측면으로 확대 하려한다.

중고(中古) 명품(名品) 사이트의 운영실태(運營實態)와 소비자(消費者) 특성(特性)에 관(關)한 연구(硏究)

김희라 ( Hee Ra Kim ),신혜원 ( Hye Won Shin ),이정욱 ( Jung Uk Rhee ),하오선 ( O Sun Ha ),김태인 ( Tae In Kim ) 한국패션비즈니스학회 2004 패션 비즈니스 Vol.8 No.2

The purposes of this study were to review the management systems of internet web sites dealing with ``second hand luxury goods``, examine purchasing motives and the level of satisfaction, and identify the differences of consumers` characteristics between purchasers and non-purchasers. 8 representative internet web sites were investigated. And 80 purchasers and 94 non-purchasers were surveyed using questionnaires. The data were analyzed using t-test and frequency analysis. The results were as followings: 1) Most purchasers of second hand luxury goods were women aged 20`s. They used internet web sites to purchase real luxury goods more cheaply and were satisfied with their purchase behavior; 2) Both purchasers and non-purchasers of second hand luxury goods got high scores for the self-esteem and the propensity of materialism and conspicuous consumption which were above average. But both of them were less influenced by reference group; and 3) The propensity of materialism and the preference to name brands of purchasers were higher than those of non-purchasers.

유아복(乳兒服) 구매비(購買費)에 따른 유아복(乳兒服) 구매자(購買者)의 의복(衣服)에 대(對)한 가치관(價値觀), 라이프스타일 및 구매실태(購買實態)

신혜원 ( Hye Won Shin ),하오선 ( O Sun Ha ),이정욱 ( Jung Uk Rhee ),김희라 ( Hee Ra Kim ),김태인 ( Tae In Kim ) 한국패션비즈니스학회 2005 패션 비즈니스 Vol.9 No.4

The purposes of this study were to classify purchaser into three groups by purchasing price for preschool children`s wear and to identify the differences of clothing values, lifestyles, considerations in purchasing preschool children`s wears, and purchasing places among the classified three groups. One hundred forty people living in Seoul with children aging between 3 and 7 were surveyed for this study. Cluster analysis, frequency analysis, chi-square analysis, ANOVA, and scheffe test were used to analyze the data. The findings of this study were as follows; 1) Purchaser were classified into three groups, namely the group of high purchasing price(HP), the group of medium purchasing price(MP), and the low purchasing price(LP). The HP had more monthly average income than the LP. 2) The HP showed high concerns in aesthetic and social clothing values, the MP considered social clothing value more important, while the LP showed high concern in economic clothing value. 3) Regarding the differences in lifestyles, the HP was more fashion-oriented and leisure-oriented, the MP was fashion-oriented, while the LP was economy -oriented. 4) When purchasing preschool children`s wear, the HP showed high concerns in design and brand, the MP in activity, laundry-and-care, and brand, and the LP in activity, laundry-and-care, and price. The HP mainly purchased preschool children`s wears in department store and imported goods store, the MP in department store, traditional market, and discount store, and the LP in discount store.

원산지와 의류 상표자산가치가 소비자의 의류구매의도에 미치는 영향 : 한국과 미국의 소비자를 중심으로 Comparison of Korean and U.S. Consumers

이정욱 한국의류학회 2000 한국의류학회지 Vol.24 No.5

The purpose of this study was (1) to examine the preference for apparel brands and country of origin, (2) to evaluate the brand equity for domestic and imported apparels as perceived by Korean and American consumers, and (3) to analyze the effects of country of origin and brand equity on consumers apparel purchase behavior. The sample included 151 Korean and 114 American consumers. The data were collected from respondents by using the mall-intercept method. In addition, the path analysis based on multiple regression analysis was applied to analyze the data. The major findings in this study were as followings; (1) Both of all Korean and US consumers preferred domestic apparel brands to imported brands but the latter preferred apparels made in home country to the former comparatively, (2) Korean consumers evaluated more favorably the brand equity for imported apparels than that for domestic apparels, but American consumers were quite the reverse, (3) To Korean consumers, the direct variable to influence the purchase intention of apparels was the perceived quality and indirect variables were the brand equity and country of origin. On the other hand, to American consumers, the perceived quality and the brand equity for domestics apparel had directly influence on the purchase intention and the brand equity for imported apparels did indirectly. Finally, implications for managerial and marketing strategies were discussed in regard to building an international apparel brand equity and improving exports with high quality apparels.

직물의 평면 드레이프 계수와 측면 드레이프 계수와의 관계

서정권,이정욱 한국의류학회 1996 한국의류학회지 Vol.20 No.3

To investigate the relationship between plane and side drape coefficient, the drape tester designed in which coordinate of projected outline of draped specimen could be recorded. By using this drape tester, the three dimensional shape, plane and side drape coefficient were obtained from coordinate of plane projected shape, and furthermore examined the tendency in changes of drape coefficient in terms of diameter of specimen, deflection angle, and bending rigidity. The side drape coefficients were constant regardless of changes in diameter of specimen. The plane drape coefficients, however, made a little difference according to changes in diameter of specimen. The experimental drape coefficient agreed well with the theoretical drape coefficient according to deflection angle. In the meanwhile, when the plane drape coefficients were regressed with the side drape coefficents, regression equation was y=0.375x-0.002x^2+6.9× 10^-5x^3. When the θ￣_a, is mean of deflection angle of selected points which have the longest and shortest distance from center point in the node, the theoretical drape coefficient calculated from θ￣_a has high correlation with experimental drape coefficient. The plane and side drape coefficient changed linearly with increasing the bending length, ??EI/w.