Hae-il Jung

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The present paper proposes a software prototype that evaluates and compares economical efficiency of HVDC and AC transmissions. An economic analysis of alternatives is performed to find an appropriate transmission line types during planning construction of transmission lines. This paper proposes a system that automates this process. This software is(More)
In this study, a novel TEMPO-oxidized cellulose nanofiber (TOCN)-silk fibroin scaffold was prepared using a cost effective freeze drying method. Fundamental physical characterizations were carried out by scanning electron microscopy (SEM), pore diameter determination, FT-IR. PBS uptake behavior of the scaffold showed that, silk fibroin can enhance the(More)
In this study, alginate (ALG) and alginate-hyaluronic acid (ALG-HA) injectable microbeads, with the purpose of delivering stem cells for tissue engineering, were prepared by a spraying method into a CaCl2 solution that shows high porosity for the exchange of nutrition and waste. In addition, the size distribution and surface morphology was investigated(More)
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