- Radiation Detection and Scintillator Technologies
- Photoacoustic and Ultrasonic Imaging
- Advanced X-ray and CT Imaging
- Medical Imaging Techniques and Applications
- Innovative Energy Harvesting Technologies
- Thermography and Photoacoustic Techniques
- Corrosion Behavior and Inhibition
- Educational Games and Gamification
- Advanced Sensor and Energy Harvesting Materials
- Teaching and Learning Programming
- Monoclonal and Polyclonal Antibodies Research
- Nanoplatforms for cancer theranostics
- Energy Harvesting in Wireless Networks
- Hydrogen embrittlement and corrosion behaviors in metals
- CAR-T cell therapy research
- Surface Modification and Superhydrophobicity
- Wireless Power Transfer Systems
- Non-Destructive Testing Techniques
- Advanced MEMS and NEMS Technologies
- Advancements in Photolithography Techniques
- Topic Modeling
- Advanced X-ray Imaging Techniques
- Nanofabrication and Lithography Techniques
- Advanced Statistical Process Monitoring
- Imbalanced Data Classification Techniques
Catholic University of Korea
2022-2025
ABL Bio (South Korea)
2021-2024
Ulsan National Institute of Science and Technology
2024
Myongji University
2023
North Carolina State University
2019-2022
Pohang University of Science and Technology
2014-2021
Korea Advanced Institute of Science and Technology
2006-2019
University of Tsukuba
2015-2018
Hyundai Heavy Industries (South Korea)
2015
Chung-Ang University
2010-2014
Optical-resolution photoacoustic microscopy (OR-PAM) is a novel label-free microscopic imaging tool to provide in vivo optical absorbing contrasts. Specially, it crucial equip real-time capability without sacrificing high signal-to-noise ratios (SNRs) for identifying and tracking specific diseases OR-PAM. Herein we demonstrate 2-axis water-proofing MEMS scanner made of flexible PDMS. This results wide scanning range (9 × 4 mm2 transverse plane) fast speed (5 B-scan images per second)....
Optical resolution photoacoustic microscopy (OR-PAM) is a non-invasive, label-free method of in vivo imaging with microscopic and high optical contrast. Based on intrinsic contrasts, OR-PAM has expanded to include vessel imaging, flow cytometry, physiological parameter analysis, single-cell characterization. However, since conventional systems have fixed tabletop configuration, large system size, slow speed, their use preclinical clinical studies remains limited. In this study, using...
Abstract Optical-resolution photoacoustic microscopy (OR-PAM), a promising microscopic imaging technique with high ultrasound resolution and superior optical sensitivity, can provide anatomical, functional, molecular information at scales ranging from the microvasculature to single red blood cells. In particular, real-time OR-PAM signal-to-noise ratio (SNR) is prerequisite for widespread use in preclinical clinical applications. Although several technical approaches have been pursued...
Artificial intelligence has emerged as a technology that is profoundly reshaping society and enabling rapid improvements in science, engineering, mathematics, well information itself. This generated increased demand for fostering an AI-literate populace growing recognition of the importance promoting K-12 students’ awareness interest AI. Although efforts are be-ginning to incorporate AI learning within education, there little research exploring how introduce students support teachers...
A comparative study is made on the surface film formation high-voltage LiNi0.5Mn1.5O4 positive electrode at elevated temperature (55°C) in two different electrolytes; LiPF6/organic carbonate and LiTFSI/ionic liquid (propylmethylpyrrolidinium bis(trifluoromethylsulfonyl)imide, PMPyr-TFSI). The derived by a decomposition of former electrolyte enriched inorganic fluorinated species, which becomes thicker with cycling to lead continued polarization cell failure. In contrast, organic carbon...
Abstract not Available.
Human cerebral organoids serve as a quintessential model for deciphering the complexities of brain development in three-dimensional milieu. However, imaging these organoids, particularly when they exceed several millimeters size, has been curtailed by technical impediments such phototoxicity, slow speeds, and inadequate resolution depth. Addressing pivotal challenges, our study pioneered high-speed scanning microscope, synergistically coupled with advanced computational image processing....
Educational games offer significant potential for supporting personalized learning in engaging virtual worlds. However, many educational do not provide adaptive gameplay to meet the needs of individual students. To address this issue, should include game levels that can self-adjust specific creating a large number adaptable requires considerable effort by developers. A promising solution problem is leverage procedural content generation automatically generate incorporate desired objectives....
Optical-resolution photoacoustic microscopy (OR-PAM) is an imaging tool to provide in vivo optically sensitive images biomedical research. To achieve a small size, fast speed, wide scan range, and high signal-to-noise ratios (SNRs) water environment, we introduce polydimethylsiloxane (PDMS)-based 2-axis scanner for flexible waterproof structure. The design, theoretical background, fabrication process performance of the are explained details. designed fabricated has dimensions 15 × mm along...
All commercial remotely controllable home appliances consume electric power while in standby mode waiting for a remote signal. This paper presents new control system that consumes absolute zero mode. In this system, the appliance is physically disconnected from AC line by latch-type relay When laser beam emitted controller to turn on appliance, photovoltaic array mounted receives and accumulates light energy storage capacitor. An autonomous connection circuit devised used separate capacitor...
A new energy harvesting technology that extracts from the stray electric field around a three‐wire AC power line is presented. It observed when 20 cm of insulated surrounded with conductive sheet, about mJ harvested in 15 min 1 μF storage capacitor. An autonomous circuit was designed and built adopting an MEMS switch as low leakage, consumption hysteretic switch. demonstrated utilised to drive commercial Zigbee‐based wireless sensor module autonomously. Since it easy safe install, proposed...
Recent years have seen increasing awareness of the need for all students in primary and secondary education to learn computer science (CS) concepts skills. Educational games hold significant potential serve as a platform CS because they integrate engaging problem solving with effective pedagogical strategies. This is especially high narrative-centered educational that embed learning activities within rich interactive stories. In this paper, we present an game featuring block-based...
Collaborative game-based learning environments offer significant promise for creating engaging group experiences. Online chat plays a pivotal role in these by providing students with means to freely communicate during problem solving. These chat-based discussions and negotiations support the coordination of students' in-game activities. However, this freedom expression comes possibility that some might engage undesirable communicative behavior. A key challenge posed collaborative is how...
In this paper we present a new technique that produces reliable flexible sensors using self-repairing interconnects. Instead of conventional serpentine metal film interconnects, the flex sensor uses liquid GaInSn-filled microfluidic channels formed on top thin Au wires. The free-flowing, low-resistivity GaInSn thus shunts wire resistance forming an electrical bridge whenever break in appears. We implemented flexible, ground reaction cluster liquid-metal scheme. array maps contact forces...
In this paper, we developed a method of fabricating polymer microstructures at various angles on single substrate via synchrotron X-ray lithography coupled with simple dimensional transformations. Earlier efforts to create three-dimensional (3D) features flat substrates focused the exposure technology, material properties, and light sources. A few research groups have sought curved substrates. We created tilted by simply deforming from 3D two-dimensional (2D). The microstructural inclination...
Recent years have seen the rapid adoption of artificial intelligence (AI) in every facet society. The ubiquity AI has led to an increasing demand integrate learning experiences into K-12 education. Early incorporating concepts and practices are critical for students better understand, evaluate, utilize technologies. planning is important class technologies which AI-driven agent utilizes structure a problem construct plans actions perform task. Although growing number efforts explored...
Although oil–water separation technology via wettability-controlled membranes has emerged as a promising to treat oily wastewater, membrane fouling by faulents such sludge flocs and colloids, the consequent clogging of pores, severely degrades efficiency filtration systems. One main promotors is oil fouling, which also form itself. Despite considerable practical academic interest in analysis oil-fouled membranes, direct visualization entire process infiltration into hydrophilic still...
Kyungjin Park, Hyunwoo Sohn, Wookhee Min, Bradford Mott, Krista Glazewski, Cindy E. Hmelo-Silver, James Lester. Proceedings of the 23rd Annual Meeting Special Interest Group on Discourse and Dialogue. 2022.