KR – Page 24 – TechConnect Briefs

Enhanced Photoluminescence Properties of Li/Al-doped YPO4:Eu phosphors

Yi S.S., Silla University, KR

we have prepared different concentrations of Li/Al-doped YPO4:Eu0.05 phosphors by solid state reaction method and the synthesized materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), excitation and emission measurements. The dependence of [...]

Ion Characteristics and Electrostatic Removal of Ultrafine Particles in High Temperature CO2 Enriched Conditions

Han B., Kim H.-J., Kim Y.J., Song D.-K., Hong W.-S., Shin W.-H., Jeong S.-H., Kim H.-J., Kim Y.J., Korea Institute of Machninery and Materials, KR

Ion current and ion mobility have been investigated at different CO2 fractions and temperatures and electrostatic collection in a wire-plate electrostatic precipitator (ESP) has been also investigated and discussed based on ionic properties. Higher CO2 [...]

Development of A Novel Electrostatic Precipitator Using Carbon fiber Unipolar Ionizers and Dielectric Collection Plates and Its Removal of Ultrafine Particles

Kim H.-J., Kim Y.J., Han B., Oh W.S., Oda T., Kim H.-J., Kim Y.J., Korea Institute of Machinery and Materials, KR

Current electrostatic precipitators (ESPs) for removing particles from semiconductor industries have used costly anti-corrosive metallic materials to maintain the particle removal performance. Due to the economical demand of the industries, a novel ESP has been [...]

A Study on Design Technologies and load analysis for Sustainable Army Barracks

Park C., Cho W., Kim B., Yonsei University, KR

Purpose of this study is embody the environmental-friendly military facility model that applied renewable energy, passive design method and high efficiency equipment. In the introduction of this study, defined problem of existing military facility and [...]

Nanobrush Structured Oligo(epsilon-caprolactone) as a Novel Plasticizer for the Manufacture of Eco-friendly Poly(vinyl chloride)

Choi W.H., Kwak S-Y, Seoul National University, KR

Phthalates such as DEHP are the most commonly used plasticizers in flexible PVC. According to the information recently reported, the phthalates still hold almost 90% of the world’s plasticizer market. There have been, however, many [...]

Propagation and Emissions of Ammonia-substituted Hydrogen/Air Flames

Lee J-H., Lee S.I., Lee J-H., Lee S.I., Kwon O.C., Sungkyunkwan University, KR

In order to evaluate the potential of partial ammonia (NH3) substitution to improve the safety of hydrogen (H2) use in general and the performance of internal combustion engines in particular, the propagation, development of surface [...]

Eco-efficiency measurement for Hydrogen as an alternative public transportation fuel

Cha K-H, Lee J-Y, Hur T., Konkuk University, KR

Urban governments are continually striving to enhance public transportation in ways that make them more environmental-friendly and improve the air quality. H2 and Fuel Cell Bus (FCB) offer one of the best ways to reduce [...]

Operation Characteristics of 1.3KW Class Anode-Supported Flat Tubular SOFC Stack

Lim T-H, Park J-L, Park S-J, Park J-L, Park S-J, Lee S.B., Song R-H, Shin D-R, Korea Institute of Energy Research, KR

KIER has fabricated anode-supported flat tubular SOFC stack for the intermediate temperature (700~800°C) operation. For this purpose, we have first fabricated anode-supported flat tubular cells by the optimization between the current collecting method and the [...]

Diesel Production from Waste Disposal using Catalytic Dissociation on Mn-zeolite Catalyst

Kim M.C., Lee K.B., Cheongju University, KR

The approach for catalytic dissociation of waste diaposal using various catalysts is presented. This approach includes two principal steps: a characterization of catalysts is used to determine the active site of prepared catalysts, and the [...]

Transparent polymer photodetector to control electronic devices

Jeon K.M., Korea Advanced Institute of Science and Technology, KR

Polymer semiconductor materials are being used in variable applications such as OLED, OPV and Organic sensor, because polymer semiconductor materials have advantages like solution processing, low-cost, flexible, and easy large area fabrication. However, performance of [...]