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공간감 향상 설계가 적용된 원형 평면 공연장의 실내 음향 특성
전상은(Jeon, Sang-Eun),윤성환(Yoon, Seong-Hwan),김용희(Kim, Yong-Hee) 대한건축학회 2023 대한건축학회 학술발표대회 논문집 Vol.43 No.1
In this study, acoustic performance of a circular-shaped small auditorium was verified through the field measurements. The hall was designed and remodelled in terms of enhanced spatial impression and for mitigation of acoustic defects. The lack of spatial impression and low reverberation time was pointed out as a major acoustic defects. Field measurements before and after remodeling construction were carried out in accordance with KS F 2864. As results, reverberation time after construction was shown as 1.31 s in comparison with the previous reverberation time of 0.76 s. Early decay time was measured as 1.33 s which is larger than reverberation time. Lateral energy fraction and 1-IACCE3 were measured as 0.4 and 0.63, respectively. Thus, the spatial impression and reverberation after remodelling were greatly improved. In addition, further considerations for improving acoustical performances were discussed.
아파트 입면에 설치하는 루버형 소음저감 장치의 열환경에 미치는 영향
전상은(Jeon, Sang-Eun),이규남(Rhee, Kyu-Nam),윤성환(Yoon, Seong-Hwan),김용희(Kim, Yong-Hee) 대한건축학회 2024 대한건축학회 학술발표대회 논문집 Vol.44 No.1
In this study, we predicted how much louvered exterior shades installed on the building elevation can reduce the cooling load in summer. We compared the cooling load reduction according to the projection depth and vertical spacing by applying shades to the upper floors under the assumption that sound barriers are installed. The results showed that the cooling load decreased as the projection depth and vertical spacing increased. For future research, we plan to analyze the correlation between noise reduction performance and the design of exterior shades that can be applied to actual buildings. In addition, simulation predictions are also planned for the improvement of natural light in addition to thermal performance through the installation of horizontally oriented external shades.
중규모 다목적 홀에서 무대와 피트 간의 밸런스 향상 방안
전상은(Jeon, Sang-Eun),윤성환(Yoon, Seong-Hwan),김용희(Kim, Yong-Hee) 대한건축학회 2024 대한건축학회논문집 Vol.40 No.2
This study explored methods to enhance the balance between the orchestra pits loudness and the singer on stage in a medium-sized multipurpose hall lacking a regular orchestra pit. Computer simulation techniques estimated acoustical parameters. Three approaches were identified for improvement: incorporating sound-absorbing materials, raising the pit rail, and installing ceiling reflectors. The optimal strategy involved adjusting the height, angle, and combination of ceiling reflectors. These methods improved balance and decreased the orchestra pits volume simultaneously. Notably, installing ceiling reflectors in the orchestra pit had the most significant impact, expanding the area meeting the desired balance criteria. Additionally, placing ceiling reflectors in the center and rear of the orchestra improved the balance for the majority of seats.
공간 빅데이터를 활용한 행위자 기반 전염병 확산 예측 모형 구축에 관한 연구 -서울특별시 메르스 사태를 중심으로-
전상은 ( Sang-eun Jeon ),신동빈 ( Dong-bin Shin ) 한국지리정보학회 2018 한국지리정보학회지 Vol.21 No.2
The epidemiological model is useful for creating simulation and associated preventive measures for disease spread, and provides a detailed understanding of the spread of disease space through contact with individuals. In this study, propose an agent-based spatial model(ABM) integrated with spatial big data to simulate the spread of MERS-CoV infections in real time as a result of the interaction between individuals in space. The model described direct contact between individuals and hospitals, taking into account three factors : population, time, and space. The dynamic relationship of the population was based on the MERS-CoV case in Seoul Metropolitan Government in 2015. The model was used to predict the occurrence of MERS, compare the actual spread of MERS with the results of this model by time series, and verify the validity of the model by applying various scenarios. Testing various preventive measures using the measures proposed to select a quarantine strategy in the event of MERS-CoV outbreaks is expected to play an important role in controlling the spread of MERS-CoV.