Lee S-G – TechConnect Briefs

Researches of visible light photo-sensitized porphyrin-TiO2 photocatalyst and its related self-cleaning effects

Min K., Manivannan R., Lee S-G, Son Y., Chungnam National University, KR

The sensitization of TiO2 with a wide variety of inorganic and organic dyes for light harvesting has been investigated over the last 2 decades for the development of efficient energy harvesting. Porphyrins, as important biomolecules, [...]

Viscosity Behavior of Magnetic Nanoparticle Filled Fluids and Impact Resistance of Their Fabric Composites

Lee S-G, Chungnam National University, KR

Ferromagnetic fluid(FMF) and magneto-rheological fluid(MRF) have been prepared from iron oxide and iron alloy nanoparticles, respectively, with a proper fluidic medium. In the FMF, chemically synthesized iron oxide particles having diameters of several nanometers were [...]

Design of the Two-Movable Plates Type MEMS Voltage Tunable Capacitor

Kim Y., Lee S-G, Park S., Kyungpook National University, KR

In this paper, we have proposed and designed the new structure of a RF-MEMS voltage tunable capacitor, which have two-movable parallel plates using electrostatic method and can be fabricated by the MEMS technology. Capacitance of [...]

Flow Cell Detection with an Optical Fiber

Kim E., Kim W., Kim E., Kim W., Lee S-G, Park S., Kyungpook National University, KR

In this experiment, we tested various optical fibers to select a suitable fiber for a effective flow cell detection. In order to align between micronozzle and optical fibers, a guide channel was fabricated by Si [...]