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최두열(Du-Yeol Choi),박진완(Jin-Wan Park) 한국게임학회 2020 한국게임학회 논문지 Vol.20 No.6
기술적 상상력에 기반을 둔 컴퓨터 시뮬레이션 기술의 발전은 가상과 현실 사이에 놓여 있던 보이지 않는 벽을 무너뜨리고, 이용자가 현실과 가상의 혼재적 상황에 직면하게 만든다. 이러한 기술의 발전은 곧 인간 정체성을 진화시킨다. 게임은, 디지털 총체 예술의 대표적인 형태로 점차 그 영역을 확대해, 나아가 그 역시 현실의 일부로 여겨지는 혼합적 형태로 진화하고 있다. 이것은 곧 게임의 가치를 승격시킬 수 있는 발판이 될 수 있으며, 게임의 진화를 논할 수 있는 계기로 볼 수 있다. MMORPG를 중점으로 한 본 연구에서, 온라인 게임의 다양한 가치와 그 안에서 이루어지는 인간 정체성의 진화에 대하여 논할 것이다. Computer simulations based on technical imagination break down invisible walls placed between the virtual and reality and causes users to face situations mixed with reality and the virtual. The development of technology embraces evolves human identity. This can serve as an opportunity that increases the value and utilization levels of games and this can be seen as an opportunity to discuss the evolution of games. In this study focused on MMORPG, discussions are made of the diverse values of online games along with the evolution of human identity that is achieved within them.
The Form and Usefulness of Alternate Reality Games
Du-Yeol Choi(최두열),Jin-Wan Park(박진완) 한국게임학회 2021 한국게임학회 논문지 Vol.21 No.2
Alternate reality games (ARGs) are a game genre with characteristics that can lead to changes in current integrated media environments. While technical combinations are being pursued as diverse media are utilized based on formative aspects, the representative, narrative combination of the real and the virtual is a convergent factor in narrative structures. Through perspectives that perceive transmedia storytelling-which has brought convergence to communication among gamers-as having a structure and utility that can outclass previous game forms, this study focuses on ARGs, which have features that converge reality and virtual reality. Further, the study reveals the structure and utility of that system. This study sheds light convergent storytelling, which is in demand in the transmedia age, and which will serve as a significant investigation with regard to social perceptions of future games and changes in game form.
꽃노랑총채벌레와 대만총채벌레의 내한성과 월동처 비교 연구
김철영,최두열,팔구니칸,엠디따핌호사인흐리틱,홍주안,김용균,Chulyoung, Kim,Du-yeol, Choi,Falguni, Khan,Md Tafim Hossain, Hrithik,Jooan, Hong,Yonggyun, Kim 한국응용곤충학회 2022 한국응용곤충학회지 Vol.61 No.3
Two dominant thrips in hot pepper (Capsicum annuum) cultivating in greenhouses are Frankliniella occidentalis and F. intonsa in Korea. This study investigated their overwintering physiology. These two thrips were freeze-susceptible and suppressed the body freezing temperature by lowering supercooling point (SCP) down to -15~-27℃. However, these SCPs varied among species and developmental stages. SCPs of F. occidentalis were -25.7±0.5℃ for adults, -17.2±0.3℃ for pupae, and -15.0±0.4℃ for larvae. SCPs of F. intonsa were -24.0±1.0℃ for adults, -27.0±0.5℃ for pupae, -17.2±0.8℃ for larvae. Cold injuries of both species occurred at low temperature treatments above SCPs. Thrips mortality increased as the treatment temperature decreased and its exposure period increased. F. occidentalis exhibited higher cold tolerance than F. intonsa. In both species, adults were more cold-tolerant than larvae. Two thrips species exhibited a rapid cold hardening because a pre-exposure to 0℃ for 2 h significantly enhanced the cold tolerance to a lethal cold temperature treatment at -10℃ for 2 h. In addition, a sequential exposure of the thrips to decreasing temperatures made them to be acclimated to low temperatures. To investigate the overwintering sites of the two species, winter monitoring of the thrips was performed at the greenhouses. During winter season (November~February), adults of the two species were not captured in outside of the greenhouses. However, F. occidentalis adults were captured to the traps and observed in weeds within the greenhouses. F. occidentalis adults were also emerged from soil samples obtained from the greenhouses during the winter season. F. intonsa adults did not come out from the soil samples at November and December, but emerged from the soil samples obtained after January. To determine the adult emergence due to diapause development, two thrips species were reared under different photoperiods. Adult development occurred in all photoperiod treatments in F. occidentalis, but did not in F. intonsa especially under short periods. Tomato spotted wilt virus, which is transmitted by these two species, was detected in the weeds infested by the thrips during the winter season. These results suggest that F. occidentalis develops on weeds in the greenhouses while F. intonsa undergoes a diapause in the soil during winter.
기하학적 형상에 의한 Mixing Element의 유동 혼합 특성
김필환(Pil-Hwan Kim),이용훈(Yong-Hun Lee),최두열(Du-Yeol Choi),김경석(Kyeong-Seok Kim),정효민(Hyo-Min Jeong),정한식(Han-Shik Chung) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
Static mixers are a series of geometric mixing elements fixed within a pipe, which use the energy of the flow stream to create mixing between two or more fluids. So, this study was carried out to know the pressure drop in the helical type static mixer numerically for a range of Reynolds number as 100 ~ 1000, and the analysis results will show that the pressure drop correlation in a helical static mixer with Reynolds number.