• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.16 no.3
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• pp.110-119
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• 2017

This study develops a passive traffic signal priority control algorithm for emergency vehicles. The passive priority control estimates and applies signal times for each signalized intersection on the emergency vehicle's route when an emergency call is received. As signals are controlled before the emergency vehicle leaves for its destination, it is possible to clear the queues at each intersection more effectively. Most of the previous studies applied preemption, which ends green time of cross streets when the emergency vehicle arrives at each intersection. This study applies green extension and early green in order not to shift the order of phases, and guarantees minimum green time for each phase. Simulation results show that the delay of emergency vehicles decreases when the signals are controlled. It is expected that delays can be decreased further by integrating the active priority control with the passive priority control algorithm presented in this study.

• Development and Reproduction
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• v.12 no.3
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• pp.297-303
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• 2008

BCL-2 family members are essential protein for the regulation of cell death and survival consisting both antiapoptotic and pro-apoptotic proteins. In the present study, we designed and cloned a new apoptotic molecule MCL-1ES BH3M coding a modified protein of MCL-1L. Compared to MCL-1L protein, MCL-1ES BH3M lacks the PEST motifs known to be involved in MCL-1L protein degradation and has seven mutated residues in BH3 domain critical for dimerization with BCL-2 family members. Overexpression of MCL-1ES BH3M induced death of different cells, and its cell killing effect was not blocked by forced expression of the pro-survival protein MCL-1L. Expression of MCL-1ES BH3M protein led to the activation of caspase 9 and caspase 3, suggesting apoptotic cell death, and confocal fluorescent microscopic analyses showed that MCL-1ES BH3M was partially localized in mitochondria. In conclusion, we reported a new apoptotic molecule and determined its cell death activity in cells.

• (The) Research of the performance art and culture
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• no.23
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• pp.313-346
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• 2011

This thesis investigated basic thinking of Pansori reading text appearance. Among Pansori reading texts, it is versions include unfamiliar contents and scenes in text. They was created by writers of Pansori reading text. Why created a writers of Pansori reading text them? First, writers of Pansori reading text created new contents and scenes in order to show their knowledge. Reading texts of this feature are 28pages version Chunhyangjun belonged to Kim Kwang-sun, 87pages version Chunhyangjun belonged to Sa Jae-dong, 154pages version Chunhyangjun belonged to Hong Yun-pyo etc. This reading texts was effected on knowledge culture of Chosun later period. Second, writers of Pansori reading text created new contents and scenes in order to reenact festivities field. Reading texts of this feature are 75pages version Chunhyangjun belonged to Kyungsang university, 52pages version Chunhyangjun belonged to Keimyung university etc. the former shows story field and Pansori field, the latter shows play field of Walja. Third, writers of Pansori reading text created new contents and scenes in order to lampoon yangban authority. Reading texts of this feature are 72pages version Chunhyangjun belonged to Chungnam university and it's affiliation, 59pages version Chunhyangjun belonged to Park Sun-ho and it's affiliation etc.

• Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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• 2002.04a
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• pp.129-139
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• 2002

DEM을 구축하는 여러 방법 중 항공레이저측량을 이용하여 DEM을 구축하면 정확도 및 품질이 우수하고, 현시성 있는 DEM을 얻을 수 있다. 이에, 본 연구에서는 기존의 DEM구축방법과 신기술에 의한 DEM 구축방법을 품질 및 경제적 면에서 비교ㆍ평가하여 우리나라 국가 DEM의 구축방안을 제안하는데 그 목적이 있으며, 이를 위하여 DEM의 소요정확도 파악, 지형(또는 사용목적)별 적정한 격자간격 도출, DEM 구축방법별 경제성을 분석하고 추진일정을 제안하였다.

• The Korean Journal of Applied Statistics
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• v.15 no.2
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• pp.433-448
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• 2002

Revelation is emphasized in exploratory data analysis. Hence, many graphical techniques are used in exploratory data analysis. Three applications of graphs in exploratory data analysis are presented.

• The Korean Nurse
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• v.16 no.1 s.87
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• pp.39-45
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• 1977

이 Resendahl의 문헌을 읽고 나는 두 가지 면에서 모든 간호학도에게 이 글을 읽기를 강권하고 싶은 생각이 났다. 첫째는 ; 오늘날 우리가 지향하는 이상적인 간호사업을 이룩하기 위하여, 둘째는 ; 현시대와 사외가 우리에게 요구하는 건강사업을 독자적이고 지도적 입장에서 이룩하기 위한 전략에 기본적인 원리로서 교수나 학생, 또한 임상간호학자(임상간호원)가 자기가 하는 일을 원숙하게 이행해 나가기 위해서는 깊이 동감할 수 있고 귀히 참고할 만한 문헌이라고 생각하여 여기 옮겨본다. 1976년 11월 하순 어느 눈 내리는 조용한 주일 아침 탈고하다.

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2002.11a
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• pp.89-92
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• 2002

동일 주제를 대상으로 현시대의 것과 지난 수 백년 전 과거의 것을 서로 비교하는 연구는 차이점을 발견할 수 있으리라는 기대감 하나 때문만이라도 흥미를 갖게 한다. 본 논문은 $\boxDr$국역 조선왕조실록$\boxUl$ 과 $\boxDr$국역 고종순종실록$\boxUl$ (서울 시스템간) 및 인터넷을 검색하여 과거 1934년 간의 우리나라 강설현상을 추적하여 그 특징을 정리하여 본 것이다.(중략)

• Proceedings of the KIEE Conference
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• 2003.07b
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• pp.1321-1322
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• 2003

무선통신기반의 이동폐색방식 열차제어시스템에서는, 열차위치를 폐색구간 단위로 검지하지 않고 실제 위치를 점단위로 검지하는 방식을 취하기 때문에, 종래와 같이 궤도회로에 의한 폐색구간 단위로 열차위치를 표시할 수 없게 된다. 이와 같이 궤도회로를 사용하지 않는 이동-폐색방식 열차제어시스템에서 현시 전개도를 통하여 열차운행상황을 나타내는 방안을 제시하였다.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.40 no.1
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• pp.41-51
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• 2016

Friction generated from balls and grooves incurs temperature rise in the ballscrew system. Thermal deformation due to the heat degrades positioning accuracy of the feed drive system. To compensate for the thermal error, accurate prediction of the temperature distribution is required first. In this paper, to predict the temperature distribution according to the rotational speed, solid and hollow cylinders are applied for analysis of the ballscrew shaft and nut, respectively. Boundary conditions such as the convective heat transfer coefficient, friction torque, and thermal contact conductance (TCC) between balls and grooves are formulated according to operating and fabrication conditions of the ballscrew. Explicit FDM (finite difference method) is studied for development of a temperature prediction simulator. Its effectiveness is verified through numerical analysis.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.13 no.1
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• pp.15-25
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• 2014

Bus signal priority is a name for various techniques to speed up bus public transport services at intersections with traffic signals. In this study propose methodology to optimize signal times for Early green, Green extension out of the active bus signal priority using deterministic delay model in isolated intersection on median bus lane. Fluctuation is found in the vehicle delay and person delay in the event that using this methodology redistributed to green time and checking slack green time is correct value by sensitivity analysis. As a result of the study, car delay is increased a little and person delay is decreased. As a result of slack green time sensitivity, delay is not much in it if variation of slack green time under 30%. But this methodology effectiveness is under claimed capacity if variation of slack green time over 30%.