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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.
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
역학 모델은 질병 확산에 대한 시뮬레이션 및 관련 방역대책을 수립하는데 유용하며, 개체들의 접촉을 통해 전파되는 질병의 공간 확산에 대한 자세한 이해를 가능하게 한다. 이 연구에서는 공간에서 개체 간의 상호작요에 의한 결과로 메르스 전염병의 확산을 실시간적으로 시뮬레이션하기 위해 공간 빅데이터와 통합된 행위자 기반 공간 모델을 제안하고자 한다. 설계된 모델은 모집단, 시간, 공간이라는 세 요소를 고려하여 병원간의 직접접촉을 묘사하였다. 모집단의 역학관계는 2015년 서울특별시에서 발생한 메르스 사례를 기준으로 하였으며, 도로를 이동하는 사람과 메르스 환자가 발생한 병원과의 직접접촉으로 전염병이 전파하는 것으로 설계하였다. 모델을 이용하여 메르스 발생 상황을 예측하면서 시계열별로 실제 메르스 확산과 본 모형의 결과를 비교분석 하여 모형의 타당성을 검증하였으며, 다양한 시나리오를 적용해서 모의실험을 수행하였다. 메르스 발생 상황에서 방역 전략을 선정하기 위해 제시된 방법을 이용하여 방역조치를 다양하게 실험하는 것은 메르스 확산을 통제하는데 중요한 역할을 할 것으로 기대된다. 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.
키네시오 테이핑 요법이 근 피로 유발 후 피로회복에 미치는 영향
전상은(Jeon, Sang-Eun),김기홍(Kim, Ki-Hong),김정훈(Kim, Jung-Hoon),이상호(Lee, Sang-Ho) 한국체육과학회 2015 한국체육과학회지 Vol.24 No.1
This study examined the effects of kinesio-taping on recovery from fatigue induced by an exercise of isokinetic concentric contraction. The fatigue was introduced by a mode of exercise at 60°/sec, 50 repetitions of three sets. Eight healthy collegiate students participated in two experiments; 1) kinesio-taping and 2) no kinesio-taping application condition. Before experiments, their physical characteristics were measured. For the experiment, blood samples were taken before and immediately after exercise, and 24 hr as well as 72 hr of recovery period. The changes in blood ammonia, lactate, LDH, and CK as a marker of fatigue were analyzed in the two groups. Window SPSS package 12.0 version was used and two-way ANOVA with repeated measures were employed to find out statistical significance. As a result, the followings were suggested; 1) Blood ammonia tended to decrease over the recovery time, but no differences between conditions were noticed. 2) Blood lactate tended to reduce during the recovery period, but differences between conditions were not significant. 3) The LDH concentrations in the two groups were not different between conditions. 4) CK tended to decrement during the recovery period, but differences between conditions were not significant. Based on the results, kinesio-taping did not influence on recovery phase of blood ammonia, lactate concentration, LDH, and CK. Further research regarding the efficacy of kinesio-taping is necessary. Furthermore, modification of taping application and configuration according to individual variation should be considered for a better outcome.