Gae-Hyun Park

Among the technologies for removing nitrogen oxide(NOx), which is known as a secondary-particulate-matter-inducing precursor, selective catalytic reduction by NH₃(NH₃-SCR) applied to car waste gas treatment has a disadvantage of supplying NH₃ by converting urea; thus, an alternative technology is required. Carbon monoxide(CO) is considered a good alternative because it can be easily supplied from fuels, directly from swept gas or through the engine technology. The CO-SCR technology has been stud

Developmental changes of chlorophyll-protein complexes (CPs) and plastid membrane proteins in greening mung bean cotyledons and the effect of spermine therein were examined by SDS-polyacrylamide gel electrophoresis. The changes in the amounts of CPs became larger with the progress of greening and light-harvesting chlorophyll a/b protein (LHCP) was the main CP in the early greening stage up to f h. As the greening proceeded, chlorophyll-protein of the photosystem I (CPI) accumulated. Application

In the fabrication process of optical elements (OEs) by the laser scanning method using a dichromated gelatin (DCG) photoplate, the expansion and drying stress of gelatine caused by inhomogeneous liquid flow inside the gelatine affects the shape of OEs. The reason this inhomogeneous liquid flow exists in the energy oversaturated parts of OEs is the presence of surplus energy. In order to obtain the OEs of desired spherical lens shape, the drying stress should be reduced and therefore the maximum