A5100752142- Combustion and Detonation Processes
- Combustion and flame dynamics
- Gold and Silver Nanoparticles Synthesis and Applications
- Rocket and propulsion systems research
- Aluminum Alloys Composites Properties
- Quantum Dots Synthesis And Properties
- Advanced Combustion Engine Technologies
- Chalcogenide Semiconductor Thin Films
- Heat Transfer and Optimization
- Heat Transfer and Boiling Studies
- Electrical and Thermal Properties of Materials
- Silicon and Solar Cell Technologies
- Thin-Film Transistor Technologies
- Microstructure and mechanical properties
- Fusion materials and technologies
- 3D Shape Modeling and Analysis
- 3D Surveying and Cultural Heritage
- Electrostatic Discharge in Electronics
- Aerospace Engineering and Control Systems
- Radiative Heat Transfer Studies
- Nanofabrication and Lithography Techniques
- 3D Modeling in Geospatial Applications
- Nuclear Materials and Properties
- Remote Sensing and LiDAR Applications
- Force Microscopy Techniques and Applications
Kyung Hee University
2008-2024
Pusan National University
2011-2024
Korea Atomic Energy Research Institute
2021-2023
Hanshin University
2019
Yonsei University
2010-2018
Sungkyunkwan University
2018
Korea Advanced Institute of Science and Technology
2015-2018
Incheon National University
2016-2018
Kangwon National University
2013-2014
Jaseng Hospital of Korean Medicine
2014
Validation and interpretation of reconstructed images using a multi-frequency electrical impedance tomography (mfEIT) requires conductivity phantom including imaging objects with known complex (σ + iωε) spectra. We describe experiments the recently developed mfEIT system called KHU Mark1 frequency range 10 Hz to 500 kHz. Using bio-impedance spectroscopy (BIS) system, we first measured spectra different saline, agar, polyacrylamide, TX151, animal hide gelatin, banana cucumber. Based on an...
Research on surface plasmon resonance coupling of metallic nanostructures is an important area in the field plasmonics because distinctive collective optical properties can be realized that are different from individual constituents. Here we report localized hybrid metal-organic nanorods. Colloidal-dispersed Au-PPy nanorods were synthesized as a representative material using modified electrochemical method, and oscillation systematically investigated by comparing these materials with pure Au...
This study was conducted to investigate the effect of absorption coefficient models on P1 radiation model for a premixed hydrogen flame containing water vapor. A CFD combustion simulation analysis performed using XiFoam, one open-source solvers in OpenFOAM. The solver flamelet has been modified implement radiative heat transfer. used this grey-mean and constant model, comparison, case without added. consisted benchmarking THAI HD-15 HD-22 experiments. difference between two tests is...
Safety issues arising from a hydrogen explosion accident in Korea are discussed herein. In order to increase the safety of refueling stations (HRSs), Gas Corporation (KGS) decided install damage-mitigation wall, also referred as barrier, around storage tanks at HRSs after evaluating consequences hypothetical accidents based on characteristics each HRS. To propose new regulation related barrier installation HRSs, which can ensure proper separation distance between HRS and its surrounding...
The aim of this research is to investigate the effects a direct current (DC) electric field on combustion behavior co-flow propane diffusion flame. flame length and NOx emission were observed measured. enhances process by causing movement ions molecules in flame, resulting change shape heights decrease with an increase applied voltage polarity, more dominant effect be positive DC field. However, for negative inner-cone shifted Drastic reduction polarity. In existing system, percentage within...
Landfill aeration may cause economic problems due to the amount of power consumed by blowers. Thus, this study proposes use an air amplifier reduce consumption injection into landfills. The developed is aerodynamic device that induces a large airflow using small quantity compressed caused Coanda effect. Field experiment results demonstrated reduced at least 90% and showed amplification effect approximately 3.5 times compared with existing in-situ systems. After aeration, methane...
Various metal phosphate monolayers prepared as resists on silicon substrates were for atomic force microscope (AFM) anodization lithography. The by binding tetravalent (Zr4+, Hf4+) or divalent (Ca2+, Mg2+) ions a phosphorylated Si substrate. presence of the substrate was confirmed using Auger electron spectroscopy. Since and are changed to be neutral divalent, respectively, after substrates, role positive ion in monolayer structure AFM lithography systematically investigated. positively...
도시의 발전 및 성장으로 인해 건물은 고층화, 대형화, 복잡화 되고 있으며, 효율적인 공간정보의 활용 공유를 위해 실내외 GIS의 중요성은 증가되고 있다. 하지만 도면 생성기술은 지형 2차원 3차원 생성에 대해서 주로 선행되었으며, 건물 실내공간의 구축 기술에 대한 연구는 미비한 실정이다. 본 연구에서는 지상 라이다로부터 취득된 실내 점군데이터를 이용한 반자동 기법을 제안하였다. 제안한 기법은 전처리, 도면생성, 도면생성 단계로 이루어진다. 전처리 단계는 공간의 높이를 측정하BR고 점군데이터의 노이즈를 식별한다. 생성 단계에서는 외곽선 추출격자와 정제과정을 이용하여 평면도를 생성한다. 과정에서 측정된 높이와 와이어프레임 모델을 식별된 노이즈 데이터는 와이어 프레임 모델과 함께 도면의 세부 모델링에 이용된다. 복도를 측량한 점군데이터에 적용하여 결과를 확인하였으며, 향후 GIS 구축을 위한 활용될 수 있을 것으로 기대된다.