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정보교육을 위한 ICT 활용 유형의 분석 및 개선안에 관한 연구
장용준,한선관,Jang, Yong-Joon,Han, Seon-Kwan 한국정보교육학회 2007 정보교육학회논문지 Vol.11 No.1
2000년 교육부에서 제시한 $\ulcorner$초 중등학교 정보통신기술 운영지침$\lrcorner$ 을 보면 정보탐색하기, 정보 분석하기, 정보안내하기, 웹 토론하기, 협력 연구하기, 전문가와 교류하기, 웹 펜팔하기, 정보 만들기의 8가지 정보통신기술 활용 유형을 제시하고 있다. 하지만 본 연구 결과 교사들이 이 8유형에 대해 실제 ICT 활용에 대한 근본적 접근이 어려우며, 교사들 역시 수업에 이 유형을 적용하기가 어렵다고 느끼고 있음을 분석하였다. 따라서 본 연구는 향후 정보교육의 정상적인 운영을 위해 기본적인 ICT활동 유형부터 개선하고 정보 과학을 기반으로 구체적 활용유형에 대해 제시하였다. 그리고 교사들의 의견을 통하여 개발된 활동유형이 타당성이 있음을 제시하였다. 본 연구는 향후 교사들이 ICT활용에 있어서 실제적인 도움을 주고 정보과학을 토대로 개발된 점을 고려하여 정보교육의 발전에 도움을 줄 것으로 기대된다.
장용준,Jang, Yong-Jun 한국건강관리협회 1987 건강소식 Vol.11 No.1
국민건강관리사업이란 대명제아래 보다 내실있는 사업운영을 위하여 전문분야별로 사업적 특성을 분류, 검사사업, 보건계몽사업, 조사연구사업, 직원연수교육사업, 국제교류사업등으로 구분하여 초창기 사업임을 감안, 체계적이고 실질적인 사업기반조성에 역점을 두어왔다.
철도차량 기후환경시험을 위한 국제 규격(UIC, EN, IEC) 및 국내 규격(시험방법) 분석 및 고찰
장용준(Yong-Jun Jang),정종덕(Jong-Duk Chung),이재천(Jae-Cheon Lee) 한국산학기술학회 2020 한국산학기술학회논문지 Vol.21 No.12
국내에서 제작되는 철도차량의 해외 시장 개척을 위하여 다양한 기후환경에서도 최고의 성능을 유지하기 위한 철도차량의 기술개발이 시급하다. 본 연구에서는 혹독한 기후환경시험 모사 시스템 구축에 필수적으로 적용되어야 할 국제 · 국내 규격을 조사 및 비교 분석하였으며, 국내 규격의 향상 방안을 고찰하였다. 기후환경시험 풍동내에서 풍속 및 온도 규정은 UIC, EN 및 IEC 규격에 규정되어 있으며, EN 50125-1에서 가장 큰 풍속인 180km/h까지 시험하도록 되어있다. 극저온 시험은 UIC 및 EN 규격에서 가장 낮은 온도 –45℃를 제시하고 있으며, IEC 62498-1에서 55℃까지의 고온시험을 규정하고 있다. 태양광 복사 시험은 UIC, EN, IEC 규격에서 최대 1200W/m2 복사 강도까지 규정되어 있다. 강우시험은 IEC, EN 및 KS R 9145 규격에서 규정하고 있으며 살수량, 살수 압력 및 살수방법 등에서 차이점이 있다. 강설시험의 경우는 국내외적으로 상세히 규정되어 있지 않다. 여압 시험은 KRTS-VE-Part31 국내 기준에서 규정되어 있다. 고속 철도차량 기밀시험은 UIC 660 및 779-11에서 객실내 압력 변화율 규정이 있으며 차량 기밀도가 규정되어 있다. 국내 규격에서는 풍속에 대한 규정은 매우 미비하며, 태양광 복사 시험 및 강설 시험 규격은 존재하지 않는다. 철저한 기후환경 시험을 위하여 국내 철도 완성차 관련 기술기준 및 시험 규격을 국제수준으로 향상시킬 필요가 있는 것으로 판단된다. The demand for the development of rolling stock technology to maintain the best performance in various climatic environments has increased to expand the overseas market of rolling stock. In this study, international and domestic standards that must be applied to build a harsh climatic environment test system were investigated and compared. The way of improvement for domestic standards is proposed. The wind velocities and temperatures are specified in the UIC, EN, and IEC standards for climatic wind tunnel, and EN 50125-1 provides the velocity test up to 180km/h, the largest wind speed. UIC and EN provide the lowest temperature of -45℃, and IEC 62498-1 provides the highest temperature 55℃. The solar radiation test was specified up to 1200W/m2 in the UIC, EN, and IEC. The IEC, EN, and KS R 9145 provide the water tightness standards, which are different from each other in water capacity, pressure, and methods. The snow test method was not well specified. KRTS-VE-Part 31 provides pressurization test methods. The airtightness standards for high-speed rolling stock are defined and regulated for internal pressure change rate in UIC 660 and 779-11. The domestic standard for the wind tunnel test was not well prepared, and the solar radiation test and snow test do not exist in Korea. Therefore, it is necessary to improve domestic standards to an international level for the climatic wind tunnel test of rolling stock.
CFAST와 FLUENT 화재유동해석을 통한 승객피난 시뮬레이션 결과 비교분석
장용준(Jang Yong-Jun),이창현(Lee Chang-Hyun),박원희(Park Won-Hee),정우성(Jung Woo-Sung) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
The evacuation simulation study was performed with the boundary condition of a fire simulator, referring to Dae-gu Subway Fire Accident which was a real station fire. The subway station was modelled from B3F station building to B2F waiting room in fire simulation. Also, a fire simulation were performed with CFAST and FLUENT. In CFAST, the total 29 zones were divided into 18 station buildings in B3F and 11 station buildings in B2F. In FLUENT, the simulated space had the same establishment as zone of CFAST. The study focused on possibility for application of fire simulation in underground station by comparing the resulted values from two simulators. For application of fire effect, the fire data were loaded directly to EXODUS in the case of CFAST and performed a passenger evacuation simulation. In the case of FLUENT, Out Data values of a fire simulation were difficult to be compatible with EXODUS. Two resulted values of passenger evacuation simulation by fire simulation were compared with the Dae-gu Subway Fire Accident in reality.
모형시험장치를 이용한 철도 선로변 방음벽에 미치는 공력 특성시험
장용준(Jang Yong-Jun),김동현(Kim Dong-Hyeon),박원희(Park Won-Hee),박승일(Park Seung-Yil) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
The experiments for aerodynamic characteristics on railway acoustic screen are performed using 1/61 scale-down mock-up facility. The train model for the experiment is high speed train (KTX) and the tested speed is about 300km/h. The tested train length is about 61cm which is corresponding to two units of train. The strength of pressure wave is measured using piezo typed pressure sensor. The measured pressure is compared with field test data and UIC 779-1 values.
스크린도어가 설치된 지하철 승강장의 화재유동 전산 수치 모사를 이용한 스크린도어의 화재 영향 연구
장용준(Jang Yong-Jun),김학범(Kim Hag-Beom),정우성(Jung Woo-Sung),박원희(Park Won-Hee) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
The present study is a basic investigation for systematically proceeding disaster prevention studying the effect of platform screen door in case of fire at the subway station. In the paper, the characteristics of screen door were surveyed and described. The fully closed platform screen door and the island type of subway station were employed for simulation-study. Numerical simulations of fire driven flow at the subway station with platform screen door were performed with commercial fire CFD code. For analyzing of the effect of platform screen door, the fire simulations with and without the platform screen door were compared. For the fire location, the one is located on the platform and the other case on the railway. The Ultrafast model was taken as fire growth scenario. The maximum heat release rate was 10MW. The propagated time of the heat and smoke to stairs was within 4 minute when the fire is located on the platform. However the heat and smoke propagation was block off by screen door when the fire is located on the railway.
Fluent와 EXODUS를 이용한 승객피난 시뮬레이션
장용준(Jang Yong-Jun),박원희(Park Won-Hee),이창현(Lee Chang-Hyun),정우성(Jung Woo-Sung) 한국철도학회 2007 한국철도학회 학술발표대회논문집 Vol.- No.-
The simulation analysis of fire-driven flow and passenger evacuation in Daegu subway station, Chung-Ang, have been performed. The first location of outbreak of fire is inside passenger car in the third basement in Chung-Ang station. The smoke flow in the second and third basement has been analyzed using FLUENT 6.2. The CO(carbon monoxide) and temperature distribution in the train units and station platform have been obtained and transferred to input data for evacuation simulation. The highest temperature in the train units was 1500K. For the simulation of passenger evacuation, EXODUS has been used for whole basements (level 1 ∼ level 3) in the station. Total number of people was assumed to be one thousand and 640 were placed inside train and 360 were placed outside train. In evacuation simulation, an average of 135 passengers were killed and an average time to evacuate takes 10min 19sec. The main evacuation routes used by passengers were investigated and the cause of death was identified by evacuation simulation.