A5006711123- Energetic Materials and Combustion
- Catalytic Processes in Materials Science
- Hydrogen Storage and Materials
- Mechanical Engineering and Vibrations Research
- Advanced Measurement and Metrology Techniques
- Natural Fiber Reinforced Composites
- Combustion and Detonation Processes
- Engineering Applied Research
- Spacecraft and Cryogenic Technologies
- CO2 Reduction Techniques and Catalysts
- Rocket and propulsion systems research
- Hybrid Renewable Energy Systems
- Surface Roughness and Optical Measurements
- Catalysts for Methane Reforming
- Optical measurement and interference techniques
- 3D Surveying and Cultural Heritage
- Internet of Things and Social Network Interactions
- Additive Manufacturing and 3D Printing Technologies
- Chemical Looping and Thermochemical Processes
- Space Satellite Systems and Control
- High-Temperature Coating Behaviors
- Energy and Environmental Systems
- Metal and Thin Film Mechanics
- Wind Energy Research and Development
- Textile materials and evaluations
Chosun University
2013-2024
Chodang University
2022-2023
Gwangju University
2021
Korea University
2008
Korea Advanced Institute of Science and Technology
2005
A reliable algorithm is developed for the analysis of machined aspheric surfaces with a stylus instrument. This research has been done prior to evaluation uncertainties in surface analysis. The considers two factors: pickup configuration (pivoted arm) and radius. It also compensates sample tilt axis offset (the setup error) best-fit least-squares process. consists parts instrument calibration analysis, coded by means C++ MATLAB. Further it was applied measurement, results were compared...
In this work, 1 MW class horizontal axis wind turbine blade configuration is properly sized and analyzed using the newly proposed aerodynamic design procedure in-house code developed by authors, its results are verified through comparison with experimental of previously blade. The structural carried out glass/epoxy composite materials simplified deign methods netting rule mixture. safety designed structure investigated various load case studies, stress, deformation, buckling, vibration...
본 연구에서는 자동차 구조물의 경량화를 위해 자연섬유 복합재료를 적용하여 차량용 패널의 구조 설계 및 해석을 수행하였다. 설계를 Flax/vinyl ester 적용하였다. 섬유 복합재 제조공법은 VARTML(Vacuum Assisted Resin Transfer Molding-Light) 제조공법이 적용되었다. 후 충돌에 의한 안전성을 분석하기 충돌 실험을 실험은 유럽 보행자 보호 기준에 맞게 수행하였으며 해석 결과를 검증하기 위하여 시편을 제작해 충격 또한 손상 잔류강도를 측정하기 손상을 가한 시편의 압축강도 In this study, structural design and analysis of the automobile bonnet is performed. The flax/vinly composite material applied for design. Vacuum Molding-Light (VARTML) manufacturing method adopted flax...
본 연구에서는 차량용 본넷의 구조 설계 및 해석을 수행하였다. 설계를 위해 아마/비닐 에스테르 복합재료가 적용되었다. 아마 섬유 복합재 제조공법은 VARTML(Vacuum Assisted Resin Transfer Molding-Light) 제조공법이 적용하였다. VARTML 공법은 한쪽 면은 견고한 금형을 사용하고 다른 진공과 함께 유연한 사용하여 압력차를 이용하여 내부에 적층된 섬유에 수지를 신속하게 함침 시켜 성형하는 방법이다. 패널로 부터 시편을 가공하여 재료의 기계적 물성치를 획득하기 위한 시편 시험을 이를 기반으로 자동차 In this study, structural design and analysis of the automobile bonnet is performed. The flax/vinly ester composite material applied for design. Vacuum Molding-Light (VARTML) manufacturing method...
A reliable algorithm was developed for the analysis of machined aspheric surfaces with stylus instrument. The research has been done as a prior step, intent to evaluate uncertainties in well make applications that commercial instruments cannot provide its own code implemented inside. considered two important factors instrument-calibration and analysis: pickup configuration (pivoted arm) radius. It also compensates sample tilt axis offset due setup error surface. coded by means C++ MATLAB....
The effects of discharge conditions and catalysts on CO₂ methanation under the plasma were investigated via In-Situ transmission FTIR OES analysis. bare Al₂O₃, Ni/Al₂O₃ Ru/Al₂O₃ coated ZnSe window using modified sol-gel method for It was confirmed from analysis that intensity excited hydrogen increased in all as frequency voltage increased, increment H+ peak largest catalyst. In addition, it found O-H band disappeared increased. conclusion, with decomposition led to increase CH₄ conversion,...
In this work, 1 MW class horizontal axis wind turbine blade configuration is properly sized and analyzed using the newly proposed aerodynamic design procedure in-house code developed by authors, its results are verified through comparison with experimental of previously blade. The structural carried out Glass/Epoxy composite materials simplified deign methods netting rule mixture. safety designed structure investigated various load case studies, stress, deformation, buckling vibration...
최근 개발되는 엔진 진단 시스템들은 현장에서 일하는 정비사들이 이들 시스템들의 복잡성, 비실용성, 공학적 이해부족으로 사용하기가 매우 어렵다. 따라서 실용성 있는 진단시스템이 요구된다. 본 연구는 작동중인 온라인 성능진단 자료와 기본엔진 성능모델에 의해 계산된 초기고장이 없는 성능자료와의 비교를 통한 소형엔진의 실용적 시스템 개발에 관한 것이다. 또한 제안된 시스템은 성능이 저하되거나 고장이 난 엔진으로 간주되는 작동 중 엔진과 기본 성능모델 사이의 구성품 성능특성을 비교함으로서 가스경로 구성품의 진단을 확인할 수 있다. 개발된 상태진단시스템은 실제 적용을 용이하게 하기위해 SIMULINK와 LabVIEW프로그램을 이용하여 사용자조건의 GUI형 프로그램으로 작성하였다. In currently developed engine condition monitoring systems, most field maintenance engineers have difficulties to use...
CO2 conversion into the useful compound is gaining increasing interest in recent years but a huge amount of energy required to activate CO2.Recently, plasma have been appearing as an attractive alternative for activation.Among technologies, low current can be competitive and valuable because it available at atmospheric pressure room temperature easy operate.In this study, high efficiency activation was demonstrated using arc plasma.In addition, effect addition γ-Al2O3 CaO on investigated.The...
Performance characteristics of hydrogen generator using sodium borohydride storage for uninterrupted power system was evaluated in the present study.For fuel cell-based system, compressed and liquefied have been mainly used as a storage, but safety long-term is still problematic due to its characteristics.In this paper, reaction with an acidic solution employed generate order compensate problem.Using mechanism, 1 kW cell developed performance evaluation carried out various operation conditions.
Abstract This study describes plasma CH 4 activation on mesoporous silica (SBA‐15) with a high specific surface area (SSA) for energy efficiency improvement. A dielectric barrier discharge was used, and the SSA of SBA‐15 varied by controlling hydrothermal reaction (HR) temperature. The effect investigated to improve activation. synthesized had well‐ordered two‐dimensional hexagonal structure. conversion C 2 selectivity using catalysis were twice as those only catalyst, because vibrationally...
The effect of γ-Al₂O₃ and Ce/Al₂O₃ nano-catalysts under plasma on CO₂ conversion was investigated via In-Situ DRIFTS. adsorption the nanoparticle surface caused to produce carbonate species, which amount dependent temperature. In addition, we confirmed that formation could be more activated by plasma. Ce nano-catalyst played a role inhibit production Al₂O₃ Indeed, when catalyst exposed plasma-excited CO₂, almost eliminated at over 300 °C, resulting in improved conversion. Notably,...