Publications by authors named "Giyong Kim"

The Korea Atomic Energy Research Institute (KAERI) obtains UO powder using the ammonium uranyl carbonate (AUC) wet process. Hydrated lime (Ca(OH)) is used to neutralize liquid wastes produced from the AUC process, and the resulting byproduct is known as lime waste. The purpose of this study is to determine optimum operating conditions for cementation of radioactive lime waste produced from the AUC process, and to evaluate the structural stability and leaching stability of cement waste form.

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The fabrication of oxide-based p-n heterojunctions that exhibit high rectification performance has been difficult to realize using standard manufacturing techniques that feature mild vacuum requirements, low thermal budget processing, and scalability. Critical bottlenecks in the fabrication of these heterojunctions include the narrow processing window of p-type oxides and the charge-blocking performance across the metallurgical junction required for achieving low reverse current and hence high rectification behavior. The overarching goal of the present study is to demonstrate a simple processing route to fabricate oxide-based p-n heterojunctions that demonstrate high on/off rectification behavior, a low saturation current, and a small turn-on voltage.

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Wind and solar energy are recognized as environmentally friendly energies. Wind energy is generated from the surface of the earth by solar energy. While wind energy can be regarded as "free" energy, generating it entails high installation cost as well as a large land footprint and noise, which is deemed to be a nuisance.

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Article Synopsis
  • * In Korea, F. culmorum is a quarantine species that had not been previously identified, but two isolates (J1 and J2) were recently discovered in a rice paddy field.
  • * Identification of these isolates was confirmed through phylogenetic analysis and they were found to produce the mycotoxin nivalenol, as well as being pathogenic to wheat and corn crops, marking the first report of F. culmorum in Korea.
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Fusarium graminearum, the causal agent of Fusarium head blight in cereal crops, produces sexual progeny (ascospore) as an important overwintering and dissemination strategy for completing the disease cycle. This homothallic ascomycetous species does not require a partner for sexual mating; instead, it carries two opposite mating-type (MAT) loci in a single nucleus to control sexual development. To gain a comprehensive understanding of the regulation of sexual development in F.

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The control of melanogenesis is an important strategy in the treatment of abnormal skin pigmentation for cosmetic purposes. The aim of the present study was to investigate the anti-melanogenic effect of Asterina pectinifera (A. pectinifera) extracts by cell-free mushroom tyrosinase assay, cellular tyrosinase assay, melanin content assay and the analysis of related protein expression in melan-a cells.

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