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윤세현 ( Youn Sei Hyun ),윤주영 ( Yun Ju Young ),조승호 ( Cho Seung Ho ),노영숙 ( Roh Young Sook ),정란 ( Chung Lan ) 한국구조물진단유지관리공학회 2007 한국구조물진단유지관리공학회 학술발표대회 논문집 Vol.11 No.2
In order to measure corrosion level of reinforcement rebar which is inside reinforced concrete structure, infrared thermographic technique was employed. Experimental test parameters were ambient temperatures, various levels of corrosion states. After analysis of temperature distributions of concrete surface, the amount of heat flux from the concrete surface is directly proportional to the corrosion level which is inside of concrete.
하수슬러지를 활용하여 제조한 흡착제의 고정흡착층에서의 H2S 흡착특성
박천동 ( Chun Dong Park ),윤주영 ( Ju Young Youn ),박영성 ( Yeong Seong Park ) 한국화학공학회 2012 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.50 No.4
H2S adsorption characteristics of adsorbent made by sewage sludge were investigated. For analyses of the manufactured adsorbent, various methods such as Iodine adsorptivity, scanning electron microscope (SEM), and measurements of BET surface area and pore volume were adopted. As the major adsorption characteristic, breakthrough curve was measured by using a continuous fixed bed adsorption column for operating variables such as adsorption temperature (25~45˚C), aspect ratio (L/D)(3~9), gas flow rate (0.1~2.0 liter/min) and H2S gas concentration (50~200ppm). The experimental result showed that the carbonization and activation of sewage sludge are very important for the improvement in H2S adsorption capacity.