• 한국ITS학회 논문지
• /
• 제20권3호
• /
• pp.47-58
• /
• 2021

최근 국내 PM 시장의 성장과 다수의 전동킥보드 공유 서비스 등장으로 이용자 수가 급증하면서 PM 관련 민원 및 안전사고 발생이 증가하고 있는 추세이다. 이에 따라, PM 조작 및 운행 미숙으로 인한 사고 감소 방안으로 PM 교육·연습 공간의 필요성이 대두되고 있다. 본 연구에서는 PM의 체계적 운영 및 활성화 방안을 마련하기 위해 관련 갈등 요소를 분석하고 그 대안으로 PM 플레이그라운드 운영 및 PM 시범구역 운영 방법을 검토하여 제안하였다. PM 플레이 그라운드 운영을 통한 기초데이터 수집 및 초보운전자 행태 분석으로 이용자의 운행 안전성 개선이 가능하며, 안전성 확보를 위한 시설 설치 방안을 통해 이용자와 비이용자 간 다양한 이해관계의 갈등 해소가 가능할 것으로 기대된다.

• 한국치위생학회지
• /
• 제12권6호
• /
• pp.1119-1127
• /
• 2012

Objectives : The aim of this study was to examine the level of oral health knowledge, oral health importance, oral health status and oral health interest of the social workers engaged in child care facilities to analyze the influential factors on oral health promotion activities and provide the basic data for oral health promotion activities. Methods : The subjects in this study were those social workers engaged in child care facilities from May 15th to May 25th in 2011. The self-report questionnaires were distributed and withdrawn and then a total of 205 papers from the subjects that participated in this study were analyzed for the final analysis. Results : 1. Oral health knowledge had $12.16{\pm}1.66$ in a full score of 15 and oral health importance, oral health status and oral health interest were $1.12{\pm}0.36$, $2.80{\pm}0.50$ and $2.14{\pm}0.8$ respectively in a full score of 5. 2. According to the general characteristics, the difference analysis of cognition-recognition factors showed that singles had significantly higher oral health knowledge married couples (p<0.05) and the social workers unusing auxiliary oral hygiene devices had significantly higher oral health interest than those using them(p<0.01). 3. The mean of oral health promotion was $3.28{\pm}0.51$, characteristics of detailed specific-area were as follows ; the toothbrushing was $3.77{\pm}0.57$, the use of fluoride was $2.67{\pm}0.98$, periodic dental screening and treatment were $2.98{\pm}1.09$ and eating habits was $4.14{\pm}0.57$. These results generally showed tooth-brushing and eating habits show a little higher figures. 4. Considering the factors oral health promotion behaviors of social workers engaged in child care facilities, the higher oral health interest was, the higher oral health promotion behavior was. Conclusions : It seems that social workers engaged in child care facilities are required to pay attention to the importance of oral health and learn oral health knowledge, which will lead to much better improvement of oral health for children brought up by them.

• 해양환경안전학회지
• /
• 제25권3호
• /
• pp.381-394
• /
• 2019

The marine industry contributes a large proportion of the air pollutant emissions along coastal regions, and this air pollution has been strongly linked to cardiovascular diseases and other illnesses. To alleviate the problem, many ports have installed alternative maritime power (AMP) facilities that enable onboard marine auxiliary engines with generators (gensets) to be shut down while a ship is at berth. This study compared the emissions from conventional gensets with those from AMP facilities, focusing on four emission types: greenhouse gases (GHG), sulphur oxides (SOX), nitrogen oxides (NOX), and particulate matter (PM). Both direct (combustion / operation) and indirect (upstream) emissions were considered together for the emission comparison. The results showed that AMP has lower emissions than conventional onboard gensets, and this benefit is highly dependent on the electricity generation mix onshore. On average, GHG emissions could be reduced by about 18.3 %, while the other emissions (SOX, NOX, and PM) would decrease more dramatically (88.4 %, 90.1 %, and 91.5 %, respectively). Additionally, future benefits of the AMP would increase due to the expansion of renewable energies. Thus, this study supports the potential of AMP as a promising solution for environmental concerns at ports worldwide.