Kim S. – TechConnect Briefs

Preparation of charged droplets via electro-hydrodynamic spraying of polyelectrolyte solutions for the removal of floating particles with less than 10 um (PM10)

Lee K-I., Lee K., Lee K-I., Lee K., Kim S., Korea Electronics Technology Institute, KR

Ambient air quality tends to be worse due to the particle pollution in the region where the rapid commercialization is going on. Particulate matter (PM) describes fine inhalable particles with the specific diameter and smaller, [...]

Synthesis of highly efficient ZnAgInS-ZnInS/ZnS quantum dots and application for down-converted LEDs

Oh J.H., Lee K.N., Lee S., Kim S., Lee K.N., Lee S., Do Y.R., Kookmin University, KR

This study introduces innovative exothermic reaction assisted synthetic method for highly efficient green emitting ZnAgInS-ZnInS/ZnS quantum dots (QDs) by simply adding excess amounts of Zn precursors (Zinc acetate dehydrate, ZAD) and application for down-converted light [...]

Fabrication of Conductive Nanoporous Membranes using Self-Assembling Block for Electrically Controlled Diffusive Flow

Ozalp E.I., Kim S., Sundar V., Zhu J.-G., Weldon J.A., Carnegie Mellon University, US

Nanoporous membranes have been recognized as promising candidates for drug delivery applications due to their small pore size and high surface-to-volume ratio1. The ultimate goal of smart drug delivery systems is to release a specific [...]

Carbonaceous Materials Supported-Pd Catalysts for the Enantioselective Hydrogenation of (E)-alpha-Phenylcinnamic acid: The Influence of Support Acidity

Bui Trung T.S., Kim S., Kim Y., Kang S., Lee H., Kim S., Kim Y., Korea Advanced Institute of Science and Technology (KAIST), KR

We performed a systematically comparative study of carbonaceous materials as catalyst supports for the asymmetric heterogeneous hydrogenation of (E)-alpha-phenylcinnamic acid to study the influence of the supports on the reaction enantioselectivity. We prepared Pd-based catalysts [...]

Analysis of low temperature effects on the performance of SEPIC in a fuel cell system

Noh M.D., Kim S., Park Y.W., Chungnam National University, KR

A single-ended primary-inductance converter (SEPIC) is to be used at the output of a direct-methanol fuel cell (DMFC) system. In this paper, SEPIC is investigated in terms of the performance variations when the operating temperature [...]

Analysis of low temperature effects on the performance of SEPIC in a fuel cell system

Noh M.D., Kim S., Park Y.W., Chungnam National University, KR

A single-ended primary-inductance converter (SEPIC) is to be used at the output of a direct-methanol fuel cell (DMFC) system. In this paper, SEPIC is investigated in terms of the performance variations when the operating temperature [...]

A Controller Design for SEPIC in a Fuel Cell Battery

Noh M.D., Oh O-K., Kim S., Park Y.W., Chungnam National University, KR

A single-ended primary-inductance converter (SEPIC)is a DC/DC converter that has a wide input range and is ideal for a fuel cell. The controller for a SEPIC is often designed heuristically without the consideration of the [...]

A Controller Design for SEPIC in a Fuel Cell Battery

Noh M.D., Oh O-K., Kim S., Park Y.W., Chungnam National University, KR

A single-ended primary-inductance converter (SEPIC)is a DC/DC converter that has a wide input range and is ideal for a fuel cell. The controller for a SEPIC is often designed heuristically without the consideration of the [...]

Protein-based nanoparticles for hydrophilic coating

Kim S., Biswas A., Evans K., USDA/ARS/NCAUR, US

Cyanoacrylate nanoparticles have been studied in great detail over the past three decades with a view to their use as controlled release drug delivery materials. The mechanism of polymerization is anionic where the initiating species [...]

Extremely Stretchable Electrode based on Combination of Inkjet-Printed Silver and Conductive Composite for Stretchable Lighting Applications

Kim D., Kim S., Byun J., Chung S., Kim D., Kim S., Hong Y., Seoul National University, KR

We have studied stretchable electrode based on combination of inkjet-printed silver electrode and conductive composite materials for stretchable lighting device applications. Previous stretchable electrodes were mainly realized by either vacuum deposition or inkjet-printing of conductive [...]