Ewha Womans University · 医学
Professor Sanghun Lee's research lab specializes in advanced materials and sustainable energy technologies, with a strong focus on hydrogen energy systems, transparent conductive oxides, and solid oxide fuel cells. The lab investigates hydrogen production, storage, and utilization—particularly through innovative methods like alkaline thermal treatment and liquid organic hydrogen carriers—while also exploring materials for high-efficiency energy conversion and storage. Key research directions include the development of cost-effective hydrogen pipeline infrastructure, optimization of Ga-doped ZnO films for optoelectronic applications, and the design of metal-supported solid oxide fuel cells for transportation. The lab integrates computational simulations with experimental synthesis and system-level analysis to address challenges in energy sustainability and material performance.
Figures are computed from collected data and may differ slightly.
Plastic deformation of semicrystalline polyethylene has been investigated via atomistic Monte Carlo and molecular dynamics simulations. Two deformation modes are considered, both consisting of tensile deformation in the longitudinal direction of the lamellar stack, with either constant lateral dimensions or constant total volume. Stress−strain curves, elastic moduli, yield stresses, and strains are determined at 350 K, with deformation strain rates (in molecular dynamics) ranging from 5 × 106 to
SPO at the level of pseudarthrosis was a safe and effective technique to correct sagittal imbalance without vascular complication. Surgical repair of pseudarthrosis with AIF provided successful fusion and good clinical results. For patients with lumbar hypolordosis, additional PSO was effective in restoration of sagittal balance.
South Korea has a plan to realize a hydrogen economy, and it is essential to establish a main hydrogen pipeline for hydrogen transport. This study develops a cost estimation model applicable to the construction of hydrogen pipelines and conducts an economic analysis to evaluate various scenarios for hydrogen pipeline construction. As a result, the cost of modifying an existing natural gas to a hydrogen pipeline is the lowest, however, there are issues with the safety of the modified hydrogen pip
Dielectric constants of electrolytic organic solvents are calculated employing nonpolarizable Molecular Dynamics simulation with Electronic Continuum (MDEC) model and Density Functional Theory. The molecular polarizabilities are obtained by the B3LYP/6-311++G(d,p) level of theory to estimate high-frequency refractive indices while the densities and dipole moment fluctuations are computed using nonpolarizable MD simulations. The dielectric constants reproduced from these procedures are evaluated
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