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이기욱 ( Ki-wuk Lee ),이다희 ( Da-hee Lee ),임진수 ( Jin-su Lim ),정세희 ( Se-hui Jeong ),이성철 ( Sungchul Lee ) 한국정보처리학회 2022 한국정보처리학회 학술대회논문집 Vol.29 No.2
본 앱은 SNS 기능이 탑재된 재무관리 앱으로, 가계부에 전에 없던 SNS 기능을 추가시켜 가계부와 SNS를 동시에 즐길 수 있으며 가계부에 작성한 내용을 공유하여 여러 유저들에게 지식과 정보를 공유할 수 있다.
가축매몰지 및 인근 농경지의 축산용 잔류 항생제 모니터링
임정은 ( Jung Eun Lim ),아누쉬카라자팍샤 ( Anushka Upamali Rajapaksha ),정세희 ( Se Hee Jeong ),김성철 ( Sung Chul Kim ),김계훈 ( Kye Hoon Kim ),이상수 ( Sang Soo Lee ),옥용식 ( Yong Sik Ok ) 한국응용생명화학회 2014 Journal of Applied Biological Chemistry (J. Appl. Vol.57 No.3
In Korea, over 4, 700 animal carcass disposal siteswere installed until 2011 due to the outbreak of foot and mouthdisease. Due to the putrefaction of buried animals, the leachatecontaining veterinary antibiotics may release into surroundingenvironments. Antibiotic residues in the environment cause theformation of antibiotic resistance bacteria threatening human andecosystem health. This study reports the concentrations of fiveantibiotics, including tetracycline (TC), chlortetracycline (CTC), oxytetracycline (OTC), sulfamethazine (SMZ), and sulfamethoxazole(SMX), in soils from animal carcass disposal site and adjacentagricultural field. Concentrations of antibiotics at animal carcassdisposal sites (TC: 144.26-350.73 μg/kg, SMZ: 17.72-44.94 μg/kg) were higher than those at agricultural field (TC: 134.16-320.73 μg/kg, SMZ: 6.48-8.85 μg/kg) whereas the concentrationsof CTC, OTC, and SMX were below detection limit in both sites. Results showed that the antibiotics in animal carcass site mightleach to the soil and possibly contaminating the groundwater. Future studies will focus on the transfer of antibiotics residues intofood crops.
가시박 유래 바이오차의 특성 및 항생물질 흡착제로서의 활용가능성 평가
임정은 ( Jung Eun Lim ),김해원 ( Hae Won Kim ),정세희 ( Se Hee Jeong ),이상수 ( Sang Soo Lee ),양재의 ( Jae E Yang ),김계훈 ( Kye Hoon Kim ),옥용식 ( Yong Sik Ok ) 한국응용생명화학회 2014 Journal of Applied Biological Chemistry (J. Appl. Vol.57 No.1
Biochar (BC) from biomass pyrolysis is a carbonaceous material that has been used to remove various contaminants in the environment. The eliminatory action for burcucumber (Sicyos angulatus L.) as an invasive plant is being consistently carried out because of its harmfulness and ecosystem disturbance. In this study, burcucumber biomass was converted into BCs at different pyrolysis temperatures of 300 and 700oC under a limited oxygen condition. Produced BCs were characterized and investigated to ensure its efficiency on antibiotics’ removal in water. The adsorption experiment was performed using two different types of antibiotics, tetracycline (TC) and sulfamethazine (SMZ). For the BC pyrolyzed at a high temperature (700oC), the values of pH, electrical conductivity, and the contents of ash and carbon increased whereas the yield, mobile matter, molar ratios of H/C and O/C, and functional groups decreased. Results showed that the efficiency of BCs on antibiotics’ removal increased as pyrolysis temperature increased from 300 to 700°C (38 to 99% for TC and 6 to 35% for SMZ). The reaction of π-π EDA (electrondonor- acceptor) might be involved in antibiotics’ adsorption to BCs. BC has potential to be a superior antibiotics’ adsorbent with environmental benefit by recycling of waste/invasive biomass.