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안드로이드 운영체제 기반 Driver Manager 서비스 애플리케이션 개발 사례 연구
권혁주,김제우,라홍민,홍진우,문송철,Kwon, Hyuk-Ju,Kim, Jae-Woo,Ra, Hong-Min,Hong, Jin-Woo,Moon, Song-Chul 서비스사이언스학회 2011 서비스연구 Vol.1 No.1
모바일 컴퓨팅의 르네상스 시대를 이끌어가고 있는 스마트폰은 조만간 전 세계의 휴대폰 시장을 점령할 것으로 예상되고 있으며, 특히 안드로이드 플랫폼 기반 스마트폰에 대한 수요가 급격히 상승하고 있다. 이에 따라 스마트폰 사용자를 위한 다양한 애플리케이션 서비스 모듈이 개발되고 있으며, 이들이 서비스 혁신에 기여하고 있다. 한편 모바일 기능을 지원하는 LBS(즉 Location Based Service) 시스템에 대한 기술 지원 및 기술의 개방으로 이와 관련한 많은 애플리케이션이 등장하는 추세이다. 우리는 이 LBS 시스템으로 운전자에 대한 교통사고 발생시 위치 정보 전송을 중점적으로 활용하고, 또한 운전자에게 여러 편리성을 제공하기 위하여 Driver Manger 서비스 모듈을 연구하였다. Smart phone products lead the mobile computing world really, and be expected as a major object of mobile phone market. In special, Android OS platform in smart phones is remarkedly uprising as of main software architecture. As many applications are applied as of the Location Based Service system in the perspective of technical support which represents open based technology. In this research, we developed the location information transformation service module, using LBS system, which effects some users urgently in the timing of traffic accidents. It supports to help some car drivers with smart phone, enables them to recognizes remote controller or another users.
랩퍼(Rapper) 패션에 나타난 저항성(抵抗性) 연구(硏究)
권혁주 ( Hyuk Ju Kwon ),양숙희 ( Suk Hee Yang ) 한국패션비즈니스학회 2001 패션 비즈니스 Vol.5 No.1
The purpose of this study how `Afro-American resistance` is showed up in the fashion trough the study of rapper`s fashion present in singing rap music. Rap music produced by the influence of black music. It have been the tool of expression of pain and sorrow of their lives and included their resistant spirit. So rapper`s fashion expressed resistance. at this point I categorized the resistant feature of rapper`s fashion at two types in terms of the extent of expression. Their are active resistance fashion and passive resistance fashion. Also each fashion types was classified in terms of style, material, color, accessories and so forth. Active fashion is possible to classify these three styles as follows. The first one is Afrocentic style that was raised from longing for Africa. The second one is Military style which contains an ling-time enduring spirit of resistance against the society. The last one is Hiphop style that violated the typical rule of dressing under the hiphop style culture. These kinds of active resistance are also classified as material like blue Jean showing black workers` resistance, color like black showing off superiority of `black` and red, gold and green color expressing black people`s resistance, and other accessories like chains, cross and so on. Passive resistance fashion has several variations according to the style. There are Jazz style, Uniform style and Hiphop style. It is also categorized as high-tech materials, white color which is the expression of desire for white and luxurious accessories showing off wealth.
다중 노출 영상의 휘도 가중치를 고려한 라디안스 맵을 이용한 HDR 영상 재현 기법
권혁주(Hyuk-Ju Kwon),이성학(Sung-Hak Lee),이근영(Geun-Young Lee),송규익(Kyu-Ik Sohng) 한국정보기술학회 2015 한국정보기술학회논문지 Vol.13 No.10
Conventional HDR algorithms use several differently exposed images for a same scene to estimate a camera response function and build a radiance map. However, it is difficult to take many pictures for a same scene due to the objects or camera motions and a variation of a viewing conditions. It is hard to reproduce the camera response function using few images due to lack of information of dynamic range. This paper proposes the HDR blending algorithm using only two exposed image. Weighting functions based on the intensity distribution of each input image are used to estimate an accurate camera response function. And the experiment results show that the proposed algorithm improves a white balance problem and reduces color distortion compared to the conventional algorithm.
사무소 건물의 창면적비와 향에 따른 슬랫형 블라인드의 최적 슬랫 각도 제어 알고리즘
권혁주(Hyuk Ju Kwon),이금호(Keum Ho Lee),김홍욱(Hong Wook Kim),이광호(Kwang Ho Lee) 대한설비공학회 2017 대한설비공학회 학술발표대회논문집 Vol.2017 No.6
Most modern office buildings adopt the curtain wall system in order to provide occupants with the sense of openness and high-technology, which requires large window area. As a result, the amount of solar radiation increases, negatively affecting cooling load during the summer and increasing energy costs. However, the performance of window itself is not sufficiently controllable parameter to control thermal comfort and solar radiation. Therefore, a shading device such as venetian blind is required to control them and thus a variety of studies have been performed. thus far Among various input variables for the control of venetian blinds, the vertical solar radiation has been selected in this study as the primary input variable and the optimal control algorithm for venetian blinds were developed for each window-to-wall ratio and orientation. Eventually, the energy saving impact will be assessed based on this study.
바닥공조 시스템에서 슬래브의 단열재 설치에 따른 바닥공간 온도상승 및 에너지 사용량 변화
권혁주(Hyuk-Ju Kwon),연상훈(Sang-Hun Yeon),유병호(Byeong-Ho Yu),이광호(Kwang Ho Lee) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.6
Generally, the UFAD (Under Floor Air Distribution) system used in office buildings, as compared with the CBAD (Ceiling Based Air Distribution) system, have many advantages such as reduced floor height as well as the improvement of the indoor air quality. Moreover, UFAD has great potentials to possibly save energy by conditioning only occupied zone due to stratification. However, the thermal decay which is defined as the increase of the supply air temperature in the supply plenum can adversely affect the energy performance. Therefore, this study, by installing insulations in the slab to reduce thermal decay and enhance cooling performance, analyzed the potential of the cooling energy performance improvement using the EnergyPlus simulation. As a result, thermal decay was reduced when installing insulation on the slab, but the cooling load of the interior zone increased. Nevertheless, the building was able to slightly reduce the total cooling energy. The results indicate that impact of cooling load change in supply plenum is larger than that in occupied zone.