• Conservation Science in Museum
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• v.27
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• pp.57-66
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• 2022

This study conducted conservation treatment of a briefcase used by a soldier who fought in the Korean War as a member of the United Nations Forces. The zooid characteristics of its main material, leather, were analyzed in collaboration with the researchers at the National Palace Museum of Korea who have conducted relevant research. A plan for conservation treatment was established based on the results of this analysis. The briefcase was made of leather with a wooden frame. The many densely arranged tiny pores in different patterns on the leather's surface suggests calf leather. The wooden frame and leather had suffered deformation over long years of deterioration and thus required conservation treatment to enhance their structural stability. The conservation treatment began with the removal of contaminants from the exterior and interior of the briefcase. The stiffened leather was softened through humidification, and torn or separated areas were restored using cowhide glue. It is expected that the results of this conservation treatment and analysis of the leather material will serve as useful sources for basic research on leather items as well as wartime and military items.

• Journal of Korean Society of societal Security
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• v.3 no.2
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• pp.33-39
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• 2010

This study is to reduce the rate of drowning accident by using of buoyancy bag. People are exposed to the high risk of drowning accident when they have water leisure activities due to the lack of safety mind-set and shortage of safety products. In case of drowning accident, the rescue action is normally depending on the other people's assistance. Therefore, rescue activities which relyn the people doesn't improve the ratio of survival in the drowning accidents. The submarine specialists should use the buoyancy products to rescue the people in the drowning accident. The citizen can carry portable buoyancy product in the automobile as well as by hands anywhere and anytime. It will be effective rescue tool to save his/her life in the emergency. In addition, it will contribute to rescue other's life because it can be used immediately. There are 3 positive characteristics on the buoyancy bag. First, it is convenience. Documents and other stuffs can be kept in the bag. Second is safety. The material of buoyancy is placed in the inner of the bag. It is possible to float the person whose weight is 90 kg. Lastly, it is durability. It can be used long-term because the outer of the bag is made of anti-water material and anti-water zipper. As a result of performance analysis, it is evident that the buoyancy bag can be used to rescue the people in the drowning accident as a indirect rescue tool compared with the current other rescue products. It is recommended that the design of outer box and performance of buoyancy are required to be improved in order to contribute more to rescue people in the accident.