• Journal of Korean Library and Information Science Society
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• v.33 no.3
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• pp.359-392
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• 2002

This study attempts to bibliographic analysis of Sam-Ryak(三略) which is contained one of Mu-Kyung Chil Seo(武經七書). There were many Print and Publication of Sam-Ryak(三略) in Cho-sun(朝鮮) Dynasty. This study collected related records seen at historical materials and systemize each book-edtion. Also an introduction of new Korean-translation Version(諺解本) of Sam-Ryak(三略) printed in 1711 is considered to be a great help in the study of Korean Language especially in the late period of Cho-sun(朝鮮) Dynasty.

• Journal of Powder Materials
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• v.21 no.1
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• pp.62-71
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• 2014

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.35 no.2
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• pp.178-183
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• 2022

For enhancing the flame-retardant properties of wallpapers, we developed an organic-inorganic hybrid solution with ZrSiO₄ as a functional ceramic powder, coated on non-woven fabric using dip coating, spray coating, and slot-die coating methods. Their flame retardant properties were characterized by a 45° combustion tester, which is manufactured according to the flame-retardant performance standard (KOFEIS 1001 and KS F 2819). In organic-inorganic hybrid solution, with increasing the concentration of acid-catalyst (acetic acid), the precipitation of ZrSiO₄ powders increased, and the flame retardant properties decreased. The highest flame retardant result was obtained for the solution adding 5 wt% acetic acid. The optimization of the coating method and coating number resulted in the most excellent flame-retardant properties being obtained for the non-woven fabric coated for 5 or 7 times by dip coating method, and their flame-retardant properties corresponded to class 2 flame-retardant performance of wallpapers.