KR – Page 14 – TechConnect Briefs

Properties of nonpremixed ammonia-substituted hydrogen-air flames

Joo J.M., Um D.H., Kwon O.C., Sungkyunkwan University, KR

The effects of ammonia (NH3) substitution on the extinction and nitrogen oxide (NOx) emissions of nonpremixed hydrogen (H2)-air flames at normal temperature and pressure were experimentally studied to evaluate the potential of partial NH3 substitution [...]

Conversion of carbon dioxide to methanol

Rahman G., Chung Y.H., Hallym University, KR

Carbon dioxide has been converted to methanol by means of electrochemical reduction using electrodes of metal oxides. The electrodes used in the conversion of CO2 consisted of Ru/Ir/Co oxides in the atomic ratios of Ru/Ir/Co [...]

Effect of Streamlined Design of High-speed Coach on Fuel Economy and Emission

Kim C-H, Ha J.H., Seoul National University of Science & Technology, KR

Aerodynamic design of high-speed coaches have been made to reduce aerodynamic drag for lower fuel consumption and to keep the driving stability of the vehicle on a highway. However, the external body shape of a [...]

The role of cetyltrimethylammonium bromide in efficiency of organic-quantum dot hybrid solar cell

Heo S.J., Yoon S., Oh S.H., Kim H.-J., Yonsei University, KR

We fabricated high efficiency organic-quantum dot hybrid solar cells. By employing the hybrid active layer, which absorbed the light in wide range, the short circuit current (Jsc) is increased due to a multiple exciton generation [...]

Properties of nonpremixed ammonia-substituted hydrogen-air flames

Joo J.M., Um D.H., Kwon O.C., Sungkyunkwan University, KR

The effects of ammonia (NH3) substitution on the extinction and nitrogen oxide (NOx) emissions of nonpremixed hydrogen (H2)-air flames at normal temperature and pressure were experimentally studied to evaluate the potential of partial NH3 substitution [...]

Conversion of carbon dioxide to methanol

Rahman G., Chung Y.H., Hallym University, KR

Carbon dioxide has been converted to methanol by means of electrochemical reduction using electrodes of metal oxides. The electrodes used in the conversion of CO2 consisted of Ru/Ir/Co oxides in the atomic ratios of Ru/Ir/Co [...]

Effect of Streamlined Design of High-speed Coach on Fuel Economy and Emission

Kim C-H, Ha J.H., Seoul National University of Science & Technology, KR

Aerodynamic design of high-speed coaches have been made to reduce aerodynamic drag for lower fuel consumption and to keep the driving stability of the vehicle on a highway. However, the external body shape of a [...]

The role of cetyltrimethylammonium bromide in efficiency of organic-quantum dot hybrid solar cell

Heo S.J., Yoon S., Oh S.H., Kim H.-J., Yonsei University, KR

We fabricated high efficiency organic-quantum dot hybrid solar cells. By employing the hybrid active layer, which absorbed the light in wide range, the short circuit current (Jsc) is increased due to a multiple exciton generation [...]

Antibacterial activity and intracellular accumulation of silver nanoparticles on Escherichia coli K-12

Choi Y.J., Lee B.-T., Kim K.W., Chung K.H., Song W.K., Gwangju Institute of Science and Technology, KR

We exposed Escherichia coli K-12 to engineered silver nanoparticles (AgNPs) on to understand the antibacterial activities of AgNPs. Optical density measurement by UV-Vis was used to determine the growth inhibition of AgNPs and silver ions. [...]

Ultrastructural and mechanical effects of collagen cross-linking treatment on human corneo-scleral tissues

Choi S., Jung G.B., Cheong Y., Shin J.-H., Jin K.-H., Park H.K., Kyung Hee University, KR

The aim of this study was to quantitatively examine the immediate effects of a photooxidative collagen cross-linking treatment with photosensitizer riboflavin and 370 nm UVA light in in vitro rabbit dermal collagen fibrils. These effects [...]