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김용훈(Yong Hoon Kim),김한솔(Han Sol Kim),김석환(Seokhwan Kim),김미경(Migyeong Kim),곽효선(Hyo Sun Kwak) 한국축산식품학회 2020 한국축산식품학회지 Vol.40 No.5
This study was to investigate the prevalence and characteristics of antimicrobial-resistant Staphylococcus aureus and methicillin-resistant S. aureus (MRSA) from 4,264 retail meat samples including beef, pork, and chicken in Korea between 2013 and 2018. A broth microdilution antimicrobial susceptibility testing was performed for S. aureus. Molecular typing by multilocus sequence typing (MLST), spa typing, and pulsed-field gel electrophoresis (PFGE), was performed on mecA-positive S. aureus strain. S. aureus was isolated at a rate of 18.2% (777/4,264), of which MRSA comprised 0.7% (29 strains). MLST analysis showed that 11 out of the 29 MRSA isolates were predominantly sequence type (ST) 398 (37.9%). In addition, ST72, ST692, ST188, ST9, and ST630 were identified in the MRSA isolates. The spa typing results were classified into 11 types and showed a high correlation with MLST. The antimicrobial resistance assays revealed that MRSA showed 100% resistance to cefoxitin and penicillin. In addition, resistance to tetracycline (62.1%), clindamycin (55.2%), and erythromycin (55.2%) was relatively high; 27 of the 29 MRSA isolates exhibited multidrug resistance. PFGE analysis of the 18 strains excluding the 11 ST398 strains exhibited a maximum of 100% homology and a minimum of 64.0% homology. Among these, three pairs of isolates showed 100% homology in PFGE; these results were consistent with the MLST and spa typing results. Identification of MRSA at the final consumption stage has potential risks, suggesting that continuous monitoring of retail meat products is required.
스마트폰 중독 방지를 위한 스마트 컨트롤 박스 및 애플리케이션 제작
전성빈(Seongbin Jeon),김미경(Migyeong Kim),손인상(Insang Son),신현아(Hyeona Shin),정선봉(Seonbong Jung),최혜진(Hyejin Choi),정성아(Seongah Jeong),이인수(Insoo Lee) 한국정보기술학회 2020 Proceedings of KIIT Conference Vol.2020 No.10
본 연구는 현대인의 스마트폰 중독 문제에 대한 심각성을 인지하고 이를 해결하기 위한 스마트 컨트롤 박스와 애플리케이션을 제작하기 위해 진행되었다. 박스는 라즈베리파이, 애플리케이션은 안드로이드 스튜디오를 이용하여 제작하였다. 세부적인 하드웨어 부품으로는 Linear actuator, Pressure sensor 등을 사용하였다. 본 연구의 결과물로 사용자들의 눈에 스마트폰이 보이지 않고 사용하지 않을 시간을 직접 설정함으로써 현대인의 스마트폰 중독 문제 해결에 도움이 될 수 있을 것으로 기대된다. We recognized the seriousness of modern people’s smartphone addiction problems. So, this project was conducted to create a smart control box and an application to solve this problem. The box was implemented by using RaspberryPi, and the application was made by the Android Studio. For detailed hardware components, linear actuator and pressure sensor were used. As a result of this study, it is expected that it will help deal with the problem of the smartphone addiction of modern people by directly setting the time and making smartphones invisible to user.