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강지수 ( Jisu Kang ),김현진 ( Hyunjin Kim ),박다원 ( Dawon Park ),배소영 ( Soyoung Bae ),이시현 ( Sihyeon Lee ) 한국정보처리학회 2019 한국정보처리학회 학술대회논문집 Vol.26 No.2
통신기술이 1 세에서 5 세대로 발전하는 동안 해상물류의 핵심인 컨테이너는 기능상의 큰 발전없이 과거에 머물러 있다. 이에 본 논문에서는 컨테이너의 위치 및 상태 정보를 수기로 관리하던 기존의 방식에서 벗어나 IoT 장비를 활용해 실시간 위치 파악, 상태 모니터링 및 자동화 등을 통해 물류의 가시성을 확보하고 컨테이너를 효율적으로 재배치함으로써 비용 절감 및 새로운 서비스 창출하기 위한 스마트 컨테이너를 제안한다. 부가적으로, 태양열판을 이용한 전원공급, 펠티어 소자를 이용한 냉방기능을 제공함으로써 신선 식품 배송의 핵심인 풀 코드 체인(Full Cold Chain) 플랫폼으로 활용범위를 넓히고자 한다.
강지수(Jisu Kang),심연호(Yeon-Ho Sim),변시예(Si-Ye Byun),장영수(Young Soo Chang) 대한설비공학회 2015 설비공학 논문집 Vol.27 No.12
This paper presents an experimental study on the freeze drying process for poly γ glutamic acid. The physical properties of poly γ glutamic acid are measured during the freeze-drying process. The moisture contents of poly γ glutamic acid according to the glass transient temperature are obtained by DSC (Differential Scanning Calorimetry) analysis. The end point of primary drying for the poly γ glutamic acid with a thickness of 3 mm is obtained by measuring the thickness of the dried layer, the amount of moisture evaporation, the moisture content, and the pressure in the drying vacuum chamber during the freeze-drying process. By considering the variation in the glass transient temperature with respect to the moisture content of the material, a control schedule for the heating plate temperature is suggested during the secondary drying process.
개인화된 썸네일 큐레이션 사용성 평가 -넷플릭스 사례를 통한 UX study-
박시원,박지수,강지수,이보아,Park, Siwon,Park, Jisu,Kang, Jisu,Rhee, Boa 한국디지털정책학회 2021 디지털융복합연구 Vol.19 No.10
This study empirically analyzed the users' experiences with the Netflix thumbnail curation based on the Technology Acceptance Model(TAM). According to the correlation analysis results, the higher the dependence on the thumbnails, the higher the satisfaction with the thumbnail curation. Both Perceived Informational Usefulness(PIU) and Perceived Ease of Use(PEOU) had correlations with the degree of satisfaction with the thumbnail curation. In particular, the factors of relevance in PEOU had the greatest impact on the degree of satisfaction and this result proved that the suitability factors of the thumbnails had significant correlations with the degree of satisfaction. The degree of satisfaction with the thumbnail curation also positively correlated with Netflix's overall degree of satisfaction and behavioral intention to use the Netflix. This study demonstrated the suitability of the TAM as a UX evaluation tool for the Netflix thumbnail curation. 본 연구는 기술수용모델을 기반으로 넷플릭스 썸네일 큐레이션에 대한 사용자 경험에 대해 실증적으로 접근했다. 상관관계 분석 결과를 살펴보면, 썸네일에 대한 의존도가 높을수록 썸네일 큐레이션에 대한 만족도가 높았고, 썸네일 정보 유용성과 썸네일 이용 용이성은 썸네일 큐레이션 만족도에 유의미한 영향을 미쳤다. 특히 썸네일 이용 용이성의 경우, 세부 변인 가운데 썸네일 적합성에 대한 영향력이 가장 높게 제시되었으며, 이 변인은 썸네일 큐레이션 만족도에 유의미한 영향을 미친다는 사실도 입증되었다. 또한 넷플릭스 썸네일 큐레이션의 만족도는 넷플릭스 전체 만족도와 행동적 이용 의사에 긍정적 영향을 미쳤으며, 본 연구를 통해 넷플릭스 썸네일 큐레이션 사용성 평가도구로써 기술수용모델의 적합성이 입증되었다.
심연호(Yeonho Sim),강지수(Jisu Kang),변시예(Siye Byun),장영수(Young Soo Chang),강병하(Byung Ha Kang) 대한설비공학회 2016 설비공학 논문집 Vol.28 No.5
This study was conducted to improve the performance of low-temperature vacuum dryer by applying desiccant to cold trap. Performance evaluation was carried out using several desiccants. The amounts of absorption and diffusivity were measured based on analytic model. Results of desiccant performance evaluation revealed that silica-gel had the most excellent performance for conditions of low-temperature vacuum drying process. Silica-gel was applied to cold trap for evaluating the drying performance. The experiment results showed that the drying time was extended as the thickness of sample was increased due to increased heat and mass transfer resistance of drying sample. In addition, as heating plate temperature was increased, drying time was decreased due to increased evaporation pressure of drying sample. Furthermore, drying time with desiccant was decreased approximately 20% than that without desiccant.
박현서(Park, Hyunseo),강지수(Kang, Jisu),이수경(Lee, Sookyung),김수영(Kim, Suyoung) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.1
This study analyzed the key planning elements used in the public notice of a decision for each plan type(Planning management type, Preservation and regeneration type, Development and maintenance type) for 313 district unit plan in Seoul, and through this, The purpose of this study was to identify the relationship between the planning objectives and key planning elements. To enhance the effectiveness of the district unit plan, it is important to establish differentiated guidelines tailored to the characteristics of each area by selectively composing guidelines that are necessary to achieve the zoning objectives. This study is expected to provide fundamental data for the construction of key planning items in future new or revised district unit planning.