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Sapphire Glass 기반 다층박막 터치패널구조의 광학특성 연구
곽영훈,문성철,이지선,이성의,Kwak, Young Hoon,Moon, Seong Cheol,Lee, Ji Seon,Lee, Seong Eui 한국전기전자재료학회 2016 전기전자재료학회논문지 Vol.29 No.3
A conductive oxide-based sapphire glass indium tin oxide/metal electrode and the optical coating, through patterning process was studied in excellent optical properties and integrated touch panel has a high strength. Indium tin oxide conductive oxides of the sapphire glass to 0.3 A at DC magnetron sputtering method of 10 min, gas flow Ar 10 Sccm Ar, $O_2$ 1.0 Sccm the formation conditions of the thin film after annealing at $550^{\circ}C$ for 30min was achieved through a 86% transmittance. In addition, the coating 130 nm hollow silica sol-gel was to improve the optical transmittance of the indium tin oxide to 91%. For the measurement by the modeling hollow silica sol by Macleod simulation and calculated the average values of silica part to the presence or absence in analogy to actual. Refractive index value and the actual value of the material on the simulation the transmittance difference is it does not completely match the air region similar to the actual value (transmission) could be confirmed that the measurement is set to a value of between 5 nm and 10 nm.
실시간 빌딩 시뮬레이션을 위한 예측 기상 기반의 기상 데이터 파일 작성 기법
곽영훈(Kwak Young-Hoon),정용우(Jeong Yong-Woo),한혜심(Han Hey-Sim),장철용(Jang Cheol-Yong),허정호(Huh Jung-Ho) 한국태양에너지학회 2014 한국태양에너지학회 논문집 Vol.34 No.1
Building simulation is used in a variety of sectors. In its early years, building simulation was mainly used in the design phase of a building for basic functions. Recently, however, it has become increasingly important during the operating phase, for commissioning and facility management. Most building simulation tools are used to estimate the thermal environment and energy consumption performance, and hence, they require the inputting of hourly weather data. A building simulation used for prediction should take into account the use of standard weather data. Weather data, which is used as input for a building simulation, plays a crucial role in the prediction performance, and hence, the selection of appropriate weather data is considered highly important. The present study proposed a technique for generating real-time weather data files, as opposed to the standard weather data files, which are required for running the building simulation. The forecasted weather elements provided by the Korea Meteorological Administration(KMA), the elements produced by the calculations, those utilizing the built - in functions of EnergyPlus, and those that use standard values are combined for hourly input. The real-time weather data files generated using the technique proposed in the present study have been validated to compare with measured data and simulated data via EnergyPlus. The results of the present study are expected to increase the prediction accuracy of building control simulation results in the future.
프로젝트관리기법 도입 및 적용에 대한 4 개 산업 비교 및 분석
곽영훈(Young Hoon Kwak) 한국경영학회 2002 經營學硏究 Vol.31 No.5
This study presents a methodology to systematically assess organizational Project Management (PM) maturity. This assessment is used to measure and compare organization`s PM level quantitatively. A 5-level Model is introduced to position and determine an organizations current and relative PM maturity. A total of 38 organizations, including 15 Engineering and Construction, 10 Telecommunications, 10 Software Development, and 3 Hi-Tech Manufacturing companies have participated in this study. This study also suggests a step to estimate the return on PM investment (PM/ROI) on an order-of-magnitude basis. First, regression analysis reveals that the organizational PM level and actual cost and schedule performance data from projects representative of the companies are positively associated. The conceptual PM/ROI calculation procedure is then presented to encourage managers investing in PM processes, tools, and techniques. This research provides a solid and comparative analysis methodology on PM practices which in turn can help managers to improve their PM processes and its effectiveness.
기상 예보 데이터와 일사 예측 모델식을 활용한 실시간 에너지 수요예측
곽영훈(Young-Hoon Kwak),천세환(Se-Hwan Cheon),장철용(Cheol-Yong Jang),허정호(Jung-Ho Huh) 대한설비공학회 2013 설비공학 논문집 Vol.25 No.6
This study was designed to investigate a method for short-term, real-time energy demand prediction, to cope with changing loads for the effective operation and management of buildings. Through a case study, a novel methodology for real-time energy demand prediction with the use of weather forecasting data was suggested. To perform the input and output operations of weather data, and to calculate solar radiation and EnergyPlus, the BCVTB (Building Control Virtual Test Bed) was designed. Through the BCVTB, energy demand prediction for the next 24 hours was carried out, based on 4 real-time weather data and 2 solar radiation calculations. The weather parameters used in a model equation to calculate solar radiation were sourced from the weather data of the KMA (Korea Meteorological Administration). Depending on the local weather forecast data, the results showed their corresponding predicted values. Thus, this methodology was successfully applicable to anywhere that local weather forecast data is available.
블라인드와 디밍제어 전략에 따른 연구소 건물의 하절기 에너지 절감 효과
곽영훈(Kwak, Young-Hoon),공동석(Kong, Dong-Seok),서동현(Seo, Dong-Hyun),장철용(Jang, Cheol-Yong),허정호(Huh, Jung-Ho) 한국건축친환경설비학회 2011 한국건축친환경설비학회 논문집 Vol.5 No.3
The purpose of this paper is focus on the effect of cooling season energy saving potential with blind and dimming control strategies in a research building. In this study the influence of the blind and dimming control strategies in current building condition, such as lighting and cooling system were analyzed. Control variables are blind slat angle, blind status, and dimming control of lighting. Control strategies and energy saving potentials of 11 cases were modeled and estimated using the EnergyPlus with EMS class. During the cooling season, lighting and cooling energy reduction were calculated. The results show that slat angles of 0° with blind control(application of EMS) and dimming control is the best in energy performance, lighting and cooling energy consumption are reduced about 4.41% compared to baseline model.