http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
DYNAMIC ROI를 이용한 실시간 차선 인식 알고리즘
우상균(Sangkyun Woo),홍대희(Daehie Hong) 한국자동차공학회 2004 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
The lane recognition for automating lane painting operation requires minimizing the amount of image processing in order to achieve real-time performance. This paper proposes a way to minimize the region of interest with the dynamic segmentation of entire image, so that the amount of calculation for image processing be minimized. This algorithm is especially designed for the robot system of automatic lane marking and shows the real-timeness as well as the robustness to the severely faded existing lane mark.
우상균 ( Woo Sang-kyun ),조준형 ( Jo Jun-hyung ),박정훈 ( Park Jung-hoon ),권용길 ( Kwon Yong-gil ),김종성 ( Kim Jong-sung ) 한국구조물진단유지관리공학회 2009 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.13 No.1
The construction of box culvert for power transmission are increasing more and more, and the life extension of it is very important. The development of structural maintenance system in view of structural integrity evaluation is needed and widely discussed. Therefore, the structural integrity evaluation system(SIES) for box culvert is under developing. SIES consists of three part, investigation system using 3D optic scanner, DB system and structural integrity evaluation system. SIES makes progress in maintenance technology for box culvert and have various kinds of advantages comparing with conventional method by visual inspection.
Blended 섬유를 사용한 양수 댐 표면 차수벽 콘크리트의 수축 특성
우상균 ( Woo Sang-kyun ),송영철 ( Song Young-chul ),원종필 ( Won Jong-pil ) 한국구조물진단유지관리공학회 2008 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.12 No.1
The main purpose of this research was to enhance the durability in both the design and construction of dams. Especially, in case of rockfill dams, the durability of face slab concrete in a concrete-faced rockfill dam(CFRD) is achieved by optimizing the fly ash replacement for cement and application of blended fiber. The effect on durability and shrinkage property corresponding to the increasing replacement of fly ash and application of blended fiber was evaluated, and the optimum value of fly ash replacement and blended fiber application was recommended. The results show that 15% of fly ash replacement and 0.9kg/m<sup>3</sup> of blended fiber application was found to be an optimum level and demonstrated excellent performance in durability and shrinkage property.
우상균 ( Woo Sang-kyun ),이홍표 ( Lee Hong-pyo ),송영철 ( Song Young-chul ),조명석 ( Cho Myung-seok ) 한국구조물진단유지관리공학회 2007 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.11 No.2
In this paper the characterization test for bond performance of CFRP plate was conducted, and based on its results, a new bond-slip model was proposed. The experiment results showed that as bond length and width of CFRP plate increased, its fracture load increased, but the increase also showed a tendency to reduce average bond stress due to the increase in bond surface. Also, as bond length and width increased, the strain of CFRP plate increased, but unlike bond length, increase in bond width was shown to reduce maximum bond stress. Among the test variables, as concrete strength increased in comparison to CFRP plate's bond length and width, fracture load and average bond stress showed tendency to increase, but the effect was revealed to be not significant. Also, as bond length increased, bond stress concentration was transmitted to the end parts of the CFRP plate, and as bond width increased, bond stress showed a tendency to uniformly spread along the bond surface. Based on the results of the bond experiment, a bilinear function was introduced to the ascending section and an exponential function was introduced to the descending section in correlating shear stress and slip in the bond-slip model, and a new bond-slip model was proposed that can effectively be applied to the analysis of boundary surface behavior between concrete and CFRP plates.
우상균(Sanggyun Woo),김우석(Wooseok Kim),김강출(Gangchul Kim),표영덕(Youngdug Pyo),이현찬,백영순 한국자동차공학회 2009 한국자동차공학회 부문종합 학술대회 Vol.2009 No.4
Dimethyl ether(DME) is an oxygenated fuel with a cetane number higher than that of diesel oil. It meet the ULEV emission regulation and reduce the smoke to almost zero when used in a diesel engine. Cogeneration is an energy conversion process, where electricity and useful heat are produced simultaneously in one process. Also, carbon dioxide emissions can be substantially reduced. Cogeneration heat can be used either for district heating or for industrial processes. Furthermore, the heat by-product is available for use without the need for the further burning of a primary fuel. The cogeneration process may be based on the use of steam or gas turbines or combustion engines. However, there have been few models with an output of less than 100 kilowatt. In the present study, conventional DI diesel engine by using DME fuel with generation output of 25 kilowatts was developed for micro cogeneration package. Test results showed that the torque and power with DME were same as those of pure diesel oil, but the brake thermal efficiency decreased a little. Also, smoke index from DME engine showed nearly zero level and NOX was decreased a little compared to diesel oil. The EGR system was the very effective method to reduce the NOX emission in case of DME fuel in diesel engine.
우상균(Sang-Kyun Woo),김유영(You-Young Kim),박수만(Soo-Man Park),여세동(Se-Dong Yeo) 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.11
에너지 저장 시스템(ESS)은 발전소에서 생산된 전력을 저장했다가 전력이 필요한 시기에 공급하는 시스템이다. ESS 기술은 전 세계적으로 72가지 이상의 기술개발 사례가 있으며, 열적, 기계적, 전기화학적, 화학적 에너지를 이용한 ESS로 분류된다. 대표적인 기술은 양수발전, 콘크리트 열에너지 저장, 리튬 이온 전지, 수소저장 기술이다. 각각의 에너지 저장 기술은 장단점을 가지기 때문에 서로 상호 보완할 수 있도록 ESS mix를 구성하는 것이 중요하다. 본 연구에서는 신재생에너지 발전의 증대로 발생하는 변동성에 대응하고, 잉여 전력을 저장할 수 있으며, 장기적으로 내륙 양수발전의 에너지 저장효율과 저장 용량을 가진 ESS 유망기술에 대해 분석하고, 그 결과를 도출하였다.