http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
연간기획: 자연에서 찾은 건강_두근두근 스포츠: 허정무 감독 -강한 인천을 향한 승리의 꿈
전성호,Jeon, Seong-Ho 한국건강관리협회 2011 건강소식 Vol.35 No.8
4년 전 이맘때도 그랬다. 월드컵과 아시안컵에서 연이어 고배를 마신 뒤, 한국은 강팀의 이미지를 잃어버렸다. 대표팀 감독직은 말 그대로 '독이 든 성배'였다. 허정무 감독이 대표팀 지휘봉을 잡은 것은 그때였다. 지도자 인생을 건 도전이었다.
타이어 공기압 모니터링 시스템용 차량 진동을 이용한 건전지 충전 회로 설계
전성호(Sungho Jeon),오상환(Sanghwan Oh) 한국자동차공학회 2022 한국자동차공학회 학술대회 및 전시회 Vol.2022 No.11
There is a tendency for the accident rate and mortality rate to increase due to damage caused by tire pressure problems in automobile driving. Therefore, it is important to maintain proper tire pressure as it affects not only safe driving, but also the life of the tire, ride comfort, and fuel efficiency. Since it is difficult to check the air pressure of these tires with the naked eye, it is inconvenient to check the air pressure from time to time. Therefore, these days, a device called a Tire Pressure Monitoring System (TPMS) is inserted into the tire and the tire pressure information is transmitted to the controller using wireless communication to monitor it. At this time, since wires cannot be connected from the outside inside the tire, a common coin-shaped battery is often used to supply power to the TPMS to operate. This is because TPMS uses batteries to supply power, so if the battery voltage is lowered after using it for more than 5 years, it needs to be replaced. In this paper, to solve this problem, we propose a power charging circuit that charges the battery by extracting the vibration energy generated by the wheels when the vehicle is moving so that the battery does not need to be replaced.
어린이가 생활하는 실내공간의 바닥먼지 중 프탈레이트 농도와 노출수준: DEHP를 중심으로
전성호(Seong-ho Jeon),김경희(Kyung-hee Kim),최재욱(Jae-wook Choi) 한국환경보건학회 2022 한국환경보건학회지 Vol.48 No.1
Background: Few studies have evaluated the exposure to phthalates via inhalation of floor dust in children’s living areas. Objectives: This study evaluated the concentration and exposure level of phthalates emitted from indoor floor dust in children’s living areas. Methods: This study utilized the results of a survey conducted by the Ministry of Environment in 2019. Indoor dust was collected from 150 households with children aged 3~7 and 67 daycare centers or local children s centers by using vacuum cleaners. It was analyzed by gas chromatography mass spectrometry. Six types of phthalates were analyzed: Bis (2-ethylhexyl) phthalate (DEHP), Dibutyl phthalate (DBP), Benzyl butyl phthalate (BBP), Di-N-octyl phthalate (DNOP), Diisononyl phthalate (DINP), Di -isodecyl phthalate (DIDP). Results: The medians of DEHP concentrations were 1,028 and 1,937 mg/kg in homes and daycare centers, respectively. The median and maximum values of daily intake were calculated by applying the median and 95th percentile values (the upper 5% of the total concentration) in dust measured in the homes. The DEHP median value was 1.6 µg/kg/bw/day, and a maximum A value of 7.8 µg/kg/bw/day was calculated. When the childcare center values were applied, the median daily intake of DEHP was 3.1 µg/kg/bw/day and the maximum value was 29.2 µg/kg/bw/day. As a result of calculating the daily intake by integrating the values of home and childcare facilities, the median and maximum values of daily intake were 1.9 and 10.9 µg/kg/bw/day, respectively. Conclusions: This study derives phthalate concentrations among the floor dust in homes and childcare facilities where children mainly spend time, and suggests their intake of phthalates through this. In particular, it was newly suggested that the phthalate concentrations in homes and childcare facilities are different, resulting in differences in intake.