A5100381259- Hydrogen embrittlement and corrosion behaviors in metals
- Microstructure and Mechanical Properties of Steels
- Welding Techniques and Residual Stresses
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Corrosion Behavior and Inhibition
- Metal Alloys Wear and Properties
- Catalysis and Oxidation Reactions
- Metal and Thin Film Mechanics
- Quantum Dots Synthesis And Properties
- Calcium Carbonate Crystallization and Inhibition
- Advanced Sensor and Energy Harvesting Materials
- Crystal Structures and Properties
- Advanced Welding Techniques Analysis
- Drug Solubulity and Delivery Systems
- Luminescence and Fluorescent Materials
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
- Advanced battery technologies research
- Vanadium and Halogenation Chemistry
- Nanoparticles: synthesis and applications
- Gas Sensing Nanomaterials and Sensors
- Graphene research and applications
- Crystallography and molecular interactions
- Advancements in Solid Oxide Fuel Cells
Jeonbuk National University
2022-2025
Hyundai Steel (South Korea)
2017-2024
Materials Science & Engineering
2023-2024
Seoul National University
1996-2024
San Diego State University
2024
Institute for Basic Science
2023
Korea National University of Transportation
2021
Dankook University
2021
Sungkyunkwan University
2019
Kumoh National Institute of Technology
2019
Background Many studies have examined the negative impact on smartphone addiction in adolescents. Recent concerns focused predictors of addiction. This study aimed to investigate association adolescents' with family environment (specifically, domestic violence and parental addiction). We further investigated whether self-control friendship quality, as addiction, may reduce observed risk. Methods used 2013 national survey internet usage utilization data from National Information Agency Korea....
Background and aims The smartphone is one of the most popular devices, with average usage at 162 min/day length phone 15.79 hr/week. Although significant concerns have been made about health effects addiction, relationship between addiction accidents has rarely studied. We examined association among South Korean university students. Methods A total 608 college students completed an online survey that included their experience (total number; traffic accidents; falls/slips; bumps/collisions;...
Limited light absorption beyond the UV region and rapid photocarrier recombination are critical impediments for improved photocatalytic performance of carbon quantum dots (CQDs) under visible-light irradiation. Herein, we demonstrate single-step microwave-assisted syntheses O-CQDs (typical CQDs terminated by carboxylic hydroxyl functional groups) from a sucrose precursor Cl-doped (Cl-CQDs) sucralose in short reaction times without using obligatory strong acids Cl doping. The doping into is...
We investigated the influence of hydrogen on a 1500 MPa hot-stamped steel 22MnB5 with different prior austenite grain size (PAGS, ranging from 14.0 μm to 22.2 μm), which were produced by precise control austenitizing temperature and time. All specimen exhibited significant reduction ductility (e.g., 70%) small decrease in ultimate tensile strength (≤15%), measured using linearly increasing stress test. The effect PAGS embrittlement was not for these test conditions. Martensite smaller...
This paper presents a study aimed at predicting the full-field acceleration response of rotorcraft fuselage. The prediction was achieved from observed limited sensor location on rotorcraft. Moreover, realized through framework that used data-driven model order reduction and long-short-term memory artificial neural network. To validate performance proposed framework, rotor/fuselage one-way coupled analysis performed by considering fuselage with utility helicopter configuration platform As...
Effects of nanoparticles (NPs) on skin corrosion and irritation using three-dimensional human models were investigated based the test guidelines Organization for Economic Co-operation Development (OECD TG431 TG439). EpiDermTM was incubated with NPs including those harboring iron (FeNPs), aluminum oxide (AlNPs), titanium (TNPs), silver (AgNPs) a defined time according to guidelines. Cell viabilities skins measured by 3-(4, 5-dimethylthi-azol-2-yl)-2.5-diphenyltetrazolium bromide method....