Search Results - "Hyunseok Oh"

Physics-of-Failure, Condition Monitoring, and Prognostics of Insulated Gate Bipolar Transistor Modules: A Review by Hyunseok Oh, Bongtae Han, McCluskey, Patrick, Changwoon Han, Youn, Byeng D.

“…Recent growth of the insulated gate bipolar transistor (IGBT) module market has been driven largely by the increasing demand for an efficient way to control…”
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Bivariate Lifetime Model for Organic Light-Emitting Diodes by Kim, Dae Whan, Oh, Hyunseok, Youn, Byeng Dong, Kwon, Dongil

“…Despite advantages of organic light-emitting diode (OLED) displays over liquid crystal displays, reliability concerns persist. These concerns must be addressed…”
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An Online-Applicable Model for Predicting Health Degradation of PEM Fuel Cells With Root Cause Analysis by Taejin Kim, Hyunseok Oh, Hyunjae Kim, Youn, Byeng D.

“…This paper proposes a new prognostic method for the health state of proton exchange membrane (PEM) fuel cells. The method is designed to predict the…”
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Model-Based Fault Diagnosis of a Planetary Gear: A Novel Approach Using Transmission Error by Jungho Park, Jong Moon Ha, Hyunseok Oh, Youn, Byeng D., Joo-Ho Choi, Nam Ho Kim

“…Extensive prior studies aimed at the development of diagnostic methods for planetary gearboxes have mainly examined acceleration and acoustic emission signals…”
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A Bayesian approach for a damage growth model using sporadically measured and heterogeneous on-site data from a steam turbine by Choi, Woosung, Youn, Byeng D., Oh, Hyunseok, Kim, Nam H.

“…•A damage growth model for a steam turbine is proposed from the damage index distribution.•RUL prediction methodologies incorporate the damage index into…”
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Deep learning enhanced individual nuclear-spin detection by Jung, Kyunghoon, Abobeih, M. H., Yun, Jiwon, Kim, Gyeonghun, Oh, Hyunseok, Henry, Ang, Taminiau, T. H., Kim, Dohun

“…The detection of nuclear spins using individual electron spins has enabled diverse opportunities in quantum sensing and quantum information processing…”
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Copper‐Catalyzed 1,2‐Bistrifluoromethylation of Terminal Alkenes by Oh, Hyunseok, Park, Areum, Jeong, Kyu‐Sung, Han, Soo Bong, Lee, Hyuk

“…Many efficient catalytic methods for the introduction of trifluoromethyl group (CF3) have been reported. Among them, the addition of CF3 and other components…”
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Algorithmic decomposition for efficient multiple nuclear spin detection in diamond by Oh, Hyunseok, Yun, Jiwon, Abobeih, M. H., Jung, Kyung-Hoon, Kim, Kiho, Taminiau, T. H., Kim, Dohun

“…Efficiently detecting and characterizing individual spins in solid-state hosts is an essential step to expand the fields of quantum sensing and quantum…”
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Model-based Fault Detection Method for Coil Burnout in Solenoid Valves Subjected to Dynamic Thermal Loading by Jo, Soo-Ho, Seo, Boseong, Oh, Hyunseok, Youn, Byeng D., Lee, Dongki

“…Solenoid valves are widely used to control fluid flow in various mechanical systems. If the valves do not function properly, the mechanical systems can lose…”
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Risk Prediction of Engineering Assets: An Ensemble of Part Lifespan Calculation and Usage Classification Methods by Kim, Hyunjae, Hwang, Taewan, Park, Jungho, Oh, Hyunseok, Youn, Byeng D.

“…For the 2014 Prognostics and Health Management (PHM) Data Challenge Competition, the PHM Society proposed a problem surrounding risk prediction of engineering…”
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A Feedback Control Method to Maintain the Amplitude of the RF Signal Applied to Ion Traps by Park, Yunjae, Oh, Hyunseok, Yoo, Seungwoo, Kim, Taehyun, Cho, Dongil “Dan”

“…For high-fidelity quantum operations in ion traps, it is important to maintain the secular frequency of the trapped ions at a constant value. The radial…”
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Modified Recurrence Plot for Robust Condition Monitoring of Electrode Tips in a Resistance Spot Welding System by Jung, Wonho, Oh, Hyunseok, Yun, Dong Ho, Kim, Young Gon, Youn, Jong Pil, Park, Jae Hong

“…Degraded electrodes in a resistance spot welding system should be replaced to ensure that weld quality is maintained. Welding electrodes are subjected to…”
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Plasmid Display for Stabilization of Enzymes Inside the Cell to Improve Whole-Cell Biotransformation Efficiency by Park, Yunjeong, Shin, Jonghyeok, Yang, Jinkyeong, Kim, Hooyeon, Jung, Younghun, Oh, Hyunseok, Kim, Yongjoon, Hwang, Jaehyeon, Park, Myeongseo, Ban, Choongjin, Jeong, Ki Jun, Kim, Sun-Ki, Kweon, Dae-Hyuk

“…Recombinant whole-cell biocatalysts are widely used for biotransformation of valuable products. However, some key enzymes involved in biotransformation…”
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A Response-Adaptive Method for Design of Validation Experiments in Computational Mechanics by Jung, Byung C., Shin, Yun-Ho, Lee, Sang Hyuk, Huh, Young Cheol, Oh, Hyunseok

“…For model verification and validation (V & V) in computational mechanics, a hypothesis test for the validity check (HTVC) is useful, in particular, with a…”
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TDR-based Multiple Leak Detection System using an S-parameter Transmission Line Model for Long-Distance Pipelines by Woo, Sihyeong, Kim, Taejin, Lee, Junmin, Oh, Hyunseok, Youn, Byeng D., Kwon, Daeil

“…Leaks in water distribution systems should be detected to avoid economic, environmental, and social problems. Existing Bayesian Inference based…”
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Coal Pulverizer Prognostics Data Challenge in PHMAP 2017 and Suggestions for Future Studies by Oh, Hyunseok, Ho Seo, Yun, Mo, Min-Hwan, Kim, Joo-Hyung

“…Pulverizers in a power plant are used to grind coal into the form of a fine powder for combustion in a power plant. To secure reliable operation, redundant…”
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Fault Log Recovery Using an Incomplete-data-trained FDA Classifier for Failure Diagnosis of Engineered Systems by Kim, Hyunjae, Moon Ha, Jong, Park, Jungho, Kim, Sunuwe, Kim, Keunsu, Chan Jang, Beom, Oh, Hyunseok, D. Youn, Byeng

“…In the 2015 PHM Data Challenge Competition, the goal of the competition problem was to diagnose failure of industrial plant systems using incomplete data. The…”
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Comparison and verification of the deviation between guaranteed and measured wind turbine power performance in complex terrain by Oh, Hyunseok, Kim, Bumsuk

“…After a wind farm construction is completed, the power performance guaranteed by the wind turbine manufacturer is usually verified based on the international…”
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Catalytic methane pyrolysis for simultaneous production of hydrogen and graphitic carbon using a ceramic sparger in a molten NiSn alloy by Kim, Jina, Oh, Changgeun, Oh, Hyunseok, Lee, Youngjae, Seo, Hyungtak, Kim, Yu Kwon

“…Catalytic methane pyrolysis (CMP) for simultaneous hydrogen and carbon production has been achieved in molten NiSn liquid alloys, with the additional benefit…”
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Development of a stochastic effective independence (SEFI) method for optimal sensor placement under uncertainty by Kim, Taejin, Youn, Byeng D., Oh, Hyunseok

“…•A novel method is proposed for optimal sensor placement under physical uncertainty.•The stochastic version of the effective independence method is derived and…”
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