- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Battery Technologies Research
- Skin Protection and Aging
- Educational Systems and Policies
- Diverse Approaches in Healthcare and Education Studies
- Ga2O3 and related materials
- Korean Urban and Social Studies
- GaN-based semiconductor devices and materials
- Water Quality Monitoring and Analysis
- Wastewater Treatment and Nitrogen Removal
- Extraction and Separation Processes
- Advanced battery technologies research
- Phosphorus and nutrient management
- ZnO doping and properties
- Technology and Data Analysis
- Perovskite Materials and Applications
- Optical Imaging and Spectroscopy Techniques
- Photorefractive and Nonlinear Optics
- Membrane Separation Technologies
- Irish and British Studies
- Polymer crystallization and properties
- Energy, Environment, Economic Growth
- Wastewater Treatment and Reuse
- Glass properties and applications
Sungkyul University
2025
Anyang University
2017-2024
Jeonbuk National University
2002-2024
Johnson & Johnson (United States)
2010-2024
Gyeongsang National University
2021
Johnson & Johnson (Sweden)
2020
Hallym University
2018
Gangwon Provincial University
2018
Pohang Iron and Steel (South Korea)
2014-2016
Research Institute of Industrial Science and Technology
2013-2016
A new thio-germanium sulfide Li2Ga2GeS6 has been synthesized for the first time and its structure was found to be isomorphous with AgGaGeS4, which is well-known as a promising infrared NLO material. The host built of GaS4 tetrahedra linked by corners GeS4 create 3D framework forming tunnels along c-axis, in Li+ ions are located. second harmonic generation (SHG) efficiency determined on powders Li2Ga2GaS6 ∼200 times larger than that α-SiO2. Unlike AgGaS2 observed very stable under prolonged...
Visible light (400–700 nm) lies outside of the spectral range what photobiologists define as deleterious radiation and a result few studies have studied effects visible wavelengths on skin. This oversight is important considering that during outdoors activities skin exposed to full solar spectrum, including light, multiple exposures at different times doses. Although contribution UV component sunlight damage has been established, examined non-UV physiology in terms inflammation, limited...
The real and imaginary parts of the dielectric constants antiferroelectric Cu(HCOO)2·4H2O were measured in its transition temperature region. measurements made by using a capacitance bridge for frequency range between 3 × 102 106 Hz an admittance meter at microwave 1 109Hz. experimental results obtained εb′ εb″ analyzed both paraelectric phases on basis time-dependent statistics molecular-field approximation. It is shown that relaxation observed phase can be described to good approximation...
Although scholars and practitioners in the field of public administration have investigated nature social enterprises emerging from nonprofit sector, little research has been undertaken on role governments facilitating prospective to transform nonprofits into enterprises. This explores global phenomenon entrepreneurship by analysing government-driven enterprise programs South Korea. What is policy Korea? government driving success are factors that affect enterprises? The results this study...
Aluminum gallium nitride (AlxGa1–xN) alloy films and nanostructures have attracted extensive research attention for ultraviolet (UV) deep optoelectronic applications. However, the morphology-controlled growth of high-quality AlxGa1–xN quasi one-dimensional has been limited by complex multicomponent phase diagram inhomogeneous composition distribution. Here, we demonstrated Si-doped n-type compositionally uniform Al0.45Ga0.55N nanorods employing a metal organic chemical vapor deposition...
A new system of lithium recycling is designed to recover Li from materials containing waste Li. This waste-to-lithium (WTL) operates based on electrochemical reaction at room temperature using three functional sections: two cathode compartments, one for the and recovered Li, Li-harvesting anode compartment located between compartments. By charging system, ions Li-containing are extracted converted into metal in harvesting compartment. The harvested can be transformed via reactions with water...
Although several studies have been performed to detect cancer using canine olfaction, none investigated whether olfaction trained the specific odor of one is able related other unfamiliar cancers. To resolve this issue, we employed breast and colorectal in vitro, dogs metabolic waste from are it cancer, vice versa. The culture liquid samples used cultivation cancerous cells (4T1 CT26) were as an experimental group. Two different breeds for each other. then tested a double-blind method...
Hybrid organic-inorganic perovskites have been investigated for their potential to serve in next-generation perovskite solar cells (PSCs). While PSC technology is approaching commercialization, thermal and moisture stabilities remain a concern. Here, we describe the assembly of PSCs using an imidazoanthraquinone derivative (AQ) as small organic additive enhance device performance stability. Unlike polymer additives, AQ easy synthesize more economical. was synthesized because it has both...
The use of perturbation and differential Monte Carlo (pMC/dMC) methods in conjunction with nonlinear optimization algorithms were proposed recently as a means to solve inverse photon migration problems regionwise heterogeneous turbid media. We demonstrate the application pMC/dMC for recovery optical properties two-layer extended epithelial tissue model from experimental measurements spatially resolved diffuse reflectance. results that provide rapid accurate approach two-region transport...
We have developed an analytic solution for spatially resolved diffuse reflectance within the approximation to radiative transport equation a semi-infinite homogeneous turbid medium. evaluate performance of this by comparing its predictions with those provided Monte Carlo simulations and standard diffusion approximation. demonstrate that provides accurate estimates in both low high scattering media. also develop multi-stage nonlinear optimization algorithm which are used recover optical...
In this study, lithium thio-germanate thin film electrolytes have been successfully prepared by radio frequency (RF) magnetron sputtering deposition in Ar gas atmospheres. The targets for RF were milling and pressing appropriate amounts of the melt-quenched starting materials nLi2S + GeS2 (n = 1, 2, 3) binary system. Approximately 1 μm films grown on Ni coated Si (Ni/Si) substrates pressed CsI pellets using 50 W power 25 mtorr (∼3.3 Pa) pressures to prepare samples Raman Infrared (IR)...