- biodegradable polymer synthesis and properties
- Welding Techniques and Residual Stresses
- Laser and Thermal Forming Techniques
- Engineering Applied Research
- Nanocomposite Films for Food Packaging
- Laser Material Processing Techniques
- Microplastics and Plastic Pollution
- Polymer crystallization and properties
- Metal and Thin Film Mechanics
- Additive Manufacturing and 3D Printing Technologies
- Ammonia Synthesis and Nitrogen Reduction
- Innovative Microfluidic and Catalytic Techniques Innovation
- Hydrogen Storage and Materials
- Semiconductor materials and devices
- Natural Fiber Reinforced Composites
- Nanofabrication and Lithography Techniques
- High Entropy Alloys Studies
- Superconductivity in MgB2 and Alloys
- Additive Manufacturing Materials and Processes
- Recycling and Waste Management Techniques
- Microfluidic and Capillary Electrophoresis Applications
- Laser Applications in Dentistry and Medicine
- Surface Treatment and Residual Stress
- Electromagnetic Launch and Propulsion Technology
- Advancements in PLL and VCO Technologies
Yonsei University
2020-2024
Gyeongsang National University
2024
Ajou University
2001-2023
Samsung (South Korea)
2019
Drexel University
2017
Chosun University
2004-2008
Korea Advanced Institute of Science and Technology
2003-2004
Silicon Labs (United States)
2004
Chlorine dioxide (ClO2) is a powerful sterilizing agent that widely used to prevent the spoilage of fresh foods during delivery and storage. However, its practical applications are hindered by short sterilization duration, complex deployment processes, high treatment costs. To address these challenges, an innovative ClO2 self-releasing sachet was developed, which specifically designed for use in retail wholesale markets. The utilizes polyether block amide (PEBAX®) as hydrophilic polymer...
To improve the dimensional thermal stability of polyethylene terephthalate (PET), a poly(ethylene glycol 1,4-cyclohexane dimethylene (CHDM) isosorbide (ISB) terephthalate) (PEICT) known as ECOZEN®T110 (EZT) was introduced into PET using melt blending technique. The miscibility, morphology, and properties PET/EZT samples were investigated. introduction amorphous EZT semi-crystalline increased glass transition temperature (Tg) but decreased crystallinity, which could be related to...
Diphyllobothrium latum infection in human is not common Korea and only thirty seven cases have been reported since 1921. We report two of fish tapeworm after Ingestion raw cherry salmon (Oncorhynchus masou) caught the domestic river. Among four family members who ate together flesh six months ago, just two, mother daughter, were infected. It our expectation that associated infections would be enlisted as one major parasitic problems with growing consumption Korea. Key words: latum,...
A quad-channel 0.6-3.2 Gb/s/channnel transceiver using eight independent phase-locked loops (PLLs) shows a 1-ps rms random jitter performance without interchannel interference. The PLL employs folded starved inverter with high supply/substrate noise immunity and an analog coarse-tuning scheme for both seamless frequency acquisition N-fold voltage-controlled-oscillator (VCO) gain reduction. fixed-interval charge pumping is adopted wide pumping-current range large tolerance. wide-range...
A femtosecond laser can be used for single or multiple writing processes to create sub 10-μm lines holes directly without the use of masks. In this study, we characterized depth and width micro-channels created by micro-scribing in polydimethylsiloxane (PDMS) under various energy doses (1%, 5%, 10%, 15% 20%) beam passes (5, 10 15). Based on a microfluidic simulation bio-application, DNA distributor was designed fabricated based an dose 5% pass 5. The simulated 3.58 5.27 μm, respectively....
Abstract The electronic properties of indium tin oxide (ITO) nanobranches fabricated by electron beam evaporation are controlled using the following two methods: i) growth direction rods and branches is an epitaxial relationship with a yttria‐stabilized zirconia substrate. aligned ITO causes low sheet resistance because high density good connectivity branches. ii) Heterojunction metal‐oxide nanoparticles coated on surface to form depletion region in near for band bending. morphology metal...
This paper studies simultaneous scheduling of production and material transfer in the semiconductor photolithography area. In particular, jobs are transferred by a handling system that employees fleet vehicles. Reticles serving as an auxiliary resource also from one place to another different set The extremely complex problem includes jobs, reticles, machines, two sets vehicles is (apparently) studied for first time. A novel constraint programming model proposed.