We study a manuscript that includes 28 oriental constellations in the flags of barracks in Gangjin. According to the Joseon Chronicles, the constellation flags in the manuscript are thought to have originated from Seon-Pil Kim (金善弼) who first made 28 constellation flags for the barracks in 1878 during the Joseon Dynasty. Seon-Pil Kim was a commander and he used the 28 constellation flags for communications in a military camp. The flags also contain 28 animals and letter-like symbols with constellation maps. We examine the constellation maps in flags in terms of shapes and number of stars, and compare them with those of constellations in the Korean and Chinese star charts such as CheonSangYeolChaBunYaJiDo (天象列次分野之圖), Joseon-Butienge (朝鮮步天歌), Suzhou (蘇州) Star Chart, and Tang-Butiange (唐步天歌). Finally, we found that the shape of constellations in the flags might be similar to those in the Chinese Tang-Butienge. We also found several errors such as the shape, connecting pattern, and number of constellations drawn in the flags. It seems that the constellation flags were unofficially used in military camps in the late Joseon dynasty. Meanwhile, the 28 constellations are divided into four groups and each group has its own color and direction. We suppose that the constellation flags might represent the positions of military camps and each group of flags has their own color based on their cardinal points.

CO₂ and PM₁₀ in military barracks were studied using DustMate, Mini Vol. Air Sampler and DirectSense^TM PPC TG-502 Monitoring Kits in 2010. The distributions of CO₂ and PM₁₀ in the military base were strongly affected by soldier's behaviors as well as managements for the barracks. Before this study, the military site may fail to follow "IAQ Administration Law of Multiplex Utilization Facilities, ect." in terms of CO₂ and PM₁₀. After adopting advanced cleaning methods and ventilation system, the concentrations of CO₂ and PM₁₀ were maintained under the regulation, respectively. The distribution of CO₂ was related to the number and time of ventilation. In contrast, PM₁₀ was dependant on the soldiers' indoor-activities rather than ventilation. This study supported that management and education for barracks and soldiers plays in a role to control indoor quality of military facility.