A5101738590- Advanced Chemical Sensor Technologies
- Gas Sensing Nanomaterials and Sensors
- Analytical Chemistry and Sensors
- Analytical Chemistry and Chromatography
- Insect Pheromone Research and Control
- Water Quality Monitoring and Analysis
- Carbohydrate Chemistry and Synthesis
- Olfactory and Sensory Function Studies
- Diamond and Carbon-based Materials Research
- Surface Treatment and Coatings
- Diverse Topics in Contemporary Research
- Ion-surface interactions and analysis
- ZnO doping and properties
- Material Properties and Applications
- Semiconductor materials and devices
- Robotic Path Planning Algorithms
- Robotic Locomotion and Control
- Social Robot Interaction and HRI
- High-Velocity Impact and Material Behavior
- Air Quality Monitoring and Forecasting
- Gaussian Processes and Bayesian Inference
- Electronic and Structural Properties of Oxides
- Electrochemical sensors and biosensors
- Mechanical Behavior of Composites
- Structural Analysis of Composite Materials
Yonsei University
1988-2020
Electronics and Telecommunications Research Institute
2004-2006
SK Group (United States)
2005
Seoul National University
1998
Inverse reinforcement learning (IRL) is a technique for automatic reward acquisition, however, it difficult to apply high-dimensional problems with unknown dynamics. This article proposes an efficient way solve the IRL problem based on sparse Gaussian process (GP) prediction l1-regularization only using highly limited number of expert demonstrations. A GP model proposed be trained predict function trajectory-reward pair data generated by deep different functions. The successfully predicts...
A small electronic nose (E-Nose) system has been developed using an 8-channel vapor detection array and personal digital assistant (PDA). The sensor chip, integrated on a single microheater-embedded polyimide substrate, was made of carbon black-polymer composites with different kinds polymers plasticizers. We have successfully classified various volatile organic compounds such as methanol, ethanol, i-propanol, benzene, toluene, n-hexane, n-heptane, c-hexane the aid evaluated resolution...
With regard to virtual reality (VR) simulators, direct guidance is needed due the complex procedures and safety of customers compared with simple coin-op amusement games. However, it difficult for human attendants repeatedly guide customer a high level service quality. In this article, we propose new type robotic attendant VR which provides personalized high-quality services automatically operates simulators in theme parks. addition, improves satisfaction by providing based on estimation...
The amorphous hydrogenated carbon (a-C:H) films were deposited on (100) silicon substrates using a divergent Ar+CH4 electron cyclotron resonance plasma. During the deposition sequence, rf bias was applied to substrate increase ion bombardment energy. results of microhardness test and Raman spectroscopy revealed that these showed abrupt changes in mechanical properties bonding characteristics from polymerlike diamondlike when (Vsub) increased −40 V. Such attributed structural compositional...
A monolithic electronic nose system, which has 12 independent channels, was fabricated by post CMOS micromachining process. Read-out integrated circuits were with the standard processes design rule of 0.8 mum. And, MEMS parts hybrid etching, composed bulk TMAH (tetramethy lammonium hydroxide) and deep dry on backside wafer after processes. Resistance matching circuit, instrumentation amplifier, multiplexer, transducer bridge structure included in read-out circuitry. heat control also...
The electronic nose (e-nose) has been used in food industry and quality controls plastic packaging. Recently it finds its applications medical diagnosis, specifically on detection of diabetes, pulmonary or gastrointestinal problem, infections by examining odors the breath tissues with odor characterizing ability. Moreover, use portable e-nose enables on-site measurements analysis vapors without extra gas-sampling units. This is expected to widen application various fields including...