A5029627418- Advanced Sensor and Energy Harvesting Materials
- Plasma Applications and Diagnostics
- Pesticide Exposure and Toxicity
- Surface Modification and Superhydrophobicity
- Conducting polymers and applications
- Plasma Diagnostics and Applications
- Aerosol Filtration and Electrostatic Precipitation
- Microbial Inactivation Methods
- Bacillus and Francisella bacterial research
- Covalent Organic Framework Applications
- Insect and Pesticide Research
- Electrospun Nanofibers in Biomedical Applications
- Gas Sensing Nanomaterials and Sensors
- Listeria monocytogenes in Food Safety
- Toxic Organic Pollutants Impact
- Flame retardant materials and properties
- Graphene and Nanomaterials Applications
- Nanofabrication and Lithography Techniques
- Supercapacitor Materials and Fabrication
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Photocatalysis Techniques
- Infection Control and Ventilation
- Nanomaterials and Printing Technologies
- Smart Grid Security and Resilience
- Fluid Dynamics and Vibration Analysis
Agency for Defense Development
2014-2024
Government of the Republic of Korea
2022-2023
Sungkyunkwan University
2023
Inje University Haeundae Paik Hospital
2017
Inje University Busan Paik Hospital
2015-2016
Korea Advanced Institute of Science and Technology
2009-2012
Catholic University of Korea
2011
Kurume University
2011
University of Pittsburgh
2010
Gwangju Institute of Science and Technology
2009
Abstract With advances in artificial intelligence (AI)-based algorithms, gesture recognition accuracy from sEMG signals has continued to increase. Spatiotemporal multichannel-sEMG substantially increase the quantity and reliability of data for any type study. Here, we report an array bipolar stretchable electrodes with a self-attention-based graph neural network recognize gestures high accuracy. The is designed spatially cover skeletal muscles acquire regional sampling EMG activity 18...
This paper describes the resistive switching of a cross-point cell array device, with junction area 100 nm x nm, fabricated using ultraviolet nanoimprinting. A GdO(x) and Cu-doped MoO(x) stack platinum top bottom electrodes served as layer, which shows analog memory characteristics resistance ratio greater than 10. To demonstrate neural network circuit, we operated device an electrically modifiable synapse circuit carried out weighted sum operation. demonstration arrays, based on memory,...
When treated by atmospheric pressure plasma, human liver cancer cells (SK-HEP-1) and normal (THLE-2) exhibited distinctive cellular responses, especially in relation to their adhesion behavior. We discovered the critical threshold voltage of 950 V, biased at electrode micro-plasma jet source, above which SK-HEP-1 started detach from substrate while THLE-2 remained intact. Our mechanical biochemical analyses confirmed presence intrinsic differences properties between cells, provide a clue...
The objective of this study was to evaluate the potential use a dielectric barrier discharge (DBD) plasma system improve microbial safety sliced cheese. atmospheric pressure (APP) effect on visual appearance and sensory evaluation were also carried out. number Escherichia coli inoculated cheese slices decreased by 0.09, 0.47, 1.16 1.47 log cycles with helium (4 liters/min [lpm]) 0.05, 0.87, 1.89 1.98 He/<TEX>$O_2$</TEX> mixture lpm/15 standard cubic centimeters per minute), after being...
Abstract With the widespread use of sensors and small electronics in Internet Things (IoT) era, triboelectric nanogenerators (TENGs) have emerged as sustainable renewable energy sources owing to their high efficiency, compatibility with various materials, low cost. However, existing TENGs exhibit a current output require large mechanical input continuously generate an enhanced output. In this study, inhalation‐driven vertical flutter TENG (IVF‐TENG) amplified is developed. The IVF‐TENG...
Incarcerated men, most of whom are recidivists, disproportionately black. Much literature about prison ex-inmates reports on this disparity, yet little is known racial disparity in recidivism rates among jail ex-inmates. This study examined and survival time (period from release date to rearrest) male released the Allegheny County Jail Pennsylvania during 2003 who were tracked for three years (N = 12,545). Recidivism compared across race using chi-square tests. Survival was analyzed analysis...
The mission of the National Spherical Torus Experiment (NSTX) is demonstration physics basis required to extrapolate next steps for spherical torus (ST), such as a plasma facing component test facility (NHTX) or an ST based (ST-CTF), and support ITER. Key issues are transport, steady state high β operation. To better understand electron new high- k scattering diagnostic was used extensively investigate gyro-scale fluctuations with varying temperature gradient scale length. Results from n = 3...
Atmospheric pressure helium plasma treated human hepatocytes exhibit distinctive zones of necrotic and live cells separated by a void. We propose that induced necrosis is attributed to species such as oxygen radicals, charged particles, metastables and/or severe disruption cytoskeletal proteins. Interestingly, uncharged intermediate filaments are only minimally disturbed plasma, elucidating the possibility electrostatic effects selectively destroying These bona fide effects, which inflict...
Abstract To address the poor oil–water separation efficiency and bactericidal properties of existing membranes for treatment industrial oily wastewater discharge, this study designed an in-and-out coating material modifying inner site outer surface porous activated carbon fabric (ACF) using urethane reactions. end, fluorinated polyurethane (F-PU) materials were synthesized perfluoroalkyl alcohol, ethylene glycol (EG), isophorone diisocyanate (IPDI). Subsequently, ACF coated with F-PU via...
Abstract The application of ultraviolet (UV) light for the decontamination chemical warfare agents (CWAs) has gained recognition as an effective method, especially treating hard‐to‐reach areas where wet methods are impractical. In this study, TiO 2 /Ti was employed a model catalyst, which contaminated with 2‐chloroethyl phenyl sulfide (CEPS), and subjected to photocatalytic using both UVB UVC light. Additionally, efficiency by introducing Au, Pt, Cu onto surface explored. During...
Abstract Unlike large area plasmas, small size plasma jets could be useful in treating localized regions. For this reason, we developed a micro jet having polytetrafluoroethylene (PTFE) part exposed to the discharge inside source. As helium gas flow rate was raised from 0.1 6.0 slpm, exhibited change characteristic laminar turbulent and an abrupt of appearance at certain (2.0–3.0 slpm). The measured rotational temperature above 500 K under conditions, which sufficiently high for pyrolysis...
Lately, the atmospheric pressure jet type corona plasma, which has been typically driven by dc to low frequency (LF: several tens of kHz), is often generated using radio 13.56 MHz. Yet, relationship between plasma and its driving seldom investigated. Hence, in this study, dependence characteristics on was explored experimentally from LF rf (5 kHz–13.56 MHz). The plasmas under 2 MHz were cylindrical shape millimeters long while spherical a few long. As increased, length became shortened. At...
A key challenge to the industrial application of nanotechnology is development fabrication processes for functional devices based on nanomaterials which can be scaled up mass production. In this report, we disclose results non-thermal radio-frequency (rf) atmospheric pressure plasma (APP) deposition TiO2 nanoparticles a flexible substrate dye-sensitized solar cells (DSSCs). Operating at 190 °C without vacuum enclosure, APP method avoid thermal damage and compatibility restrictions utilize...
Abstract As a valuable tool for harvesting energy, triboelectric nanogenerators (TENGs) exhibit notable advantages over other energy‐harvesting methods in terms of their low weight, cost and high‐power density. Despite application potential the domain portable electronics, TENGs limited maximum output owing to high surface charge density during operation. Furthermore, inherently produce alternative current (AC); thus, an additional electrical circuit such as rectifying must be used power...
Using a lotus leaf as our model, we fabricated an extremely low surface energy micro/nanostructured coating for textiles that repel oil, water, and chemical warfare agents (CWAs) using simple process is suitable large scale production. This coating, called “OmniBlock”, consisted of approximately 200-nm silica nanoparticles, tetraethylorthosilicate, 3-glycidoxypropyl trimethoxysilane, perfluorooctanoic acid-free fluoropolymer (Fluorolink S10) was cross-linked between Si-O-Si groups via...
Chemical warfare agents (CWAs) are fatal to humans. Although various materials have been reported show excellent performance in the neutralization and chemical decontamination of CWAs, it is difficult directly compare their performances because they evaluated under different reaction conditions. In this study, conversion rates achieved products obtained for CWAs upon with homogeneous solutions (acting as neutralizers) same conditions systematically examined using gas chromatography. The...