A5100444733- Additive Manufacturing Materials and Processes
- High Entropy Alloys Studies
- High Temperature Alloys and Creep
- Welding Techniques and Residual Stresses
- Advancements in Battery Materials
- Advanced Sensor and Energy Harvesting Materials
- Image Processing Techniques and Applications
- CCD and CMOS Imaging Sensors
- Analytical Chemistry and Sensors
- Photonic and Optical Devices
- Microstructure and Mechanical Properties of Steels
- Conducting polymers and applications
- Nanowire Synthesis and Applications
- Adhesion, Friction, and Surface Interactions
- Radiative Heat Transfer Studies
- High-Temperature Coating Behaviors
- Additive Manufacturing and 3D Printing Technologies
- Recycling and Waste Management Techniques
- Advanced Battery Materials and Technologies
- Advanced Materials and Mechanics
- Advanced Chemical Sensor Technologies
- Tactile and Sensory Interactions
- Neural Networks and Reservoir Computing
- Analytical Chemistry and Chromatography
- Hydrogen embrittlement and corrosion behaviors in metals
Daegu Gyeongbuk Institute of Science and Technology
2015-2024
Kumoh National Institute of Technology
2024
Chungbuk National University
2024
Samsung (South Korea)
2022-2023
Changwon National University
2016-2022
Doosan Heavy Industries & Construction (South Korea)
2016-2022
Gyeongsang National University
2022
Institut Clément Ader
2019-2021
Seoul National University of Science and Technology
2021
Silicon Works (South Korea)
2020
The superconducting magnet is effective to get a high stable and magnetic field for resonance imaging (MRI). current MRI needed cooling in the liquid helium (4.2 K) use NbTi wire. In past few years, price increase low availability of has become serious problem. Under such circumstances, development high-temperature (HTS) coil dispensing with greatly desired. research project ReBCO system fundamental technology that started from latter half 2013 develops 3 T magnets. It gets prospect...
A photoionization detector (PID) is well known for its high sensitivity, large dynamic range, and non-destructive vapor detection capability. However, due to tardy response, which results from the relatively ionization chamber dead volume, application of PID in gas chromatography (GC) has been limited. Here, we developed a rapid, flow-through, highly sensitive microfluidic that was microfabricated directly on conductive silicon wafer. The significantly reduced volume only 1.3 μL, nearly 10...
A small form-factor, lightweight wireless capsule endoscope (WCE) system with body channel communication (BCC) transceiver ICs is proposed for VGA-resolution image transferring and localization. The are composed of chip receiver chip, implemented in a 65-nm CMOS process. In the side, provides 360° capturing through four-camera integration to reduce miss rate. Also, dual-band pulse-shaping BCC transmitter enable low-power (<1 mW), high-speed (80 Mb/s) transmission. contact attenuation...
We present an automated portable GC system for the rapid and sensitive detection of VOCs in water.
Metal Additive Manufacturing and Laser Powder Bed Fusion (LPBF), in particular, have come forth recent years as an outstanding innovative manufacturing approach. The LPBF process is notably characterized by very high solidification cooling rates, well repeated abrupt heating cycles, which generate the build-up of anisotropic microstructure residual stresses. Post-processing stress-relieving heat treatments at elevated temperatures are often required order to release some these effects 1...
This paper proposes a novel fixed pattern noise (FPN) calibration technique for linear-logarithmic active pixel sensor (APS) based on the conventional four-transistor structure. The offset FPN originated from threshold characteristic variation of transfer gate is calibrated with proposed two-step charge method, without any modification structure or image-processing steps. prototype fabricated by using 0.13-μm CMOS image process. chip includes 320 × 240 array 2.25 μm pitch and peripheral...
We present a new technique for fabricating microwires with high elasticity and aspect ratio. Thanks to the adoption of lost-wax casting in fabrication, can be directly grown from their supporting structure out-of-plane, surface-normal direction, automatically accomplishing strong, monolithic anchoring. The also anchored at both ends an arrayed format, making themselves more useful mechanical optical applications. Using technique, we fabricated arrays poly(dimethylsiloxane) (PDMS) 150–250 µm...
An automated portable comprehensive 2-dimensional gas chromatography device was used for rapid field analysis of occupational volatile organic compounds at a Spray and Finishing Shop.
With the increasing popularity of battery‐powered mobility, ensuring safety and reliability Li‐ion batteries (LIBs) has become critical for manufacturers. Despite advanced manufacturing processes large‐scale cells, “latent defects” still unintentionally appear, due to imbalanced battery design, invisible faults, extreme operating conditions. These defects cause performance degradation can even lead fires. Hence, early detection latent defects, along with understanding influence cell...
Flexible display technology has been successfully commercialized with foldable and rollable displays. Because of the limitation flexible technology, stretchable displays have attracted great attention which capable realizing freeform design as a post‐flexible display. However, no yet provided sufficient stretchability resolution to realize genuine free‐form We report on highly deformable AMOLED elongation over 20%. Moreover, our is more than 15% shrinkage deformation. also developed...
Three-dimensional (3D) printing technology has the advantage of enabling specific visualization creative ideas. Since synchrotron based images can provide high sensitivity and resolution, they are a very useful to identify 3D anatomy microscale samples. X-ray using such radiation grafted technology. We be obtained modeling data an ant radiation, then, it were outputted with printer. A new way usefulness structure analysis is then found by visualizing micro-internal diverse biomedical samples...
A new low-cost high-performance dual-capture image sensor for wide-dynamic-range (WDR) applications is proposed. The proposed pixel uses a pinned photodiode (PPD) as charge storage to achieve WDR operation capability. By controlling the applied voltage at transfer gate (TG) of operate PPD in nonfull-depletion mode, fixed pattern noise (FPN) that originated from threshold characteristic variation TG efficiently calibrated without additional circuitry or processing steps. prototype was...