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Mi-Hui Bak,Sung-Je Cho 보안공학연구지원센터 2016 International Journal of Software Engineering and Vol.10 No.11
The purpose of this study is to analyze the influences of literacy education for early childhood educators on the emotional intelligence of children. For the study, a survey was conducted against 217 research targets in daycare centers and kindergartens in Ulsan Metropolitan City from the 20th of October 2015 to the 20th of January 2016. SPSS program was used to conduct frequency analysis, descriptive statistical analysis, correlation analysis and multiple regression analysis were conducted. The results of analysis were as follows. First, it was revealed that the demographical characteristics of early childhood educators significantly changes their literacy education ability and the level of emotional intelligence of children. Secondly, from the analysis on the literacy education ability of early childhood educators, the materials for literacy education was found to be resulting in high level of self-awareness in children’s emotional intelligence. Third, the analysis revealed that the emotional intelligence of children and the literacy education ability of early childhood educators have significant positive correlation. Such results imply that the literacy education of early childhood educators has significant influence on the emotional intelligence of children. The implication of this study is that it serves as preliminary document for the enhancement of educations for the early childhood educators on the improvement of the level of emotional intelligence of children.
( Jeongmin Hong ),( Ok Jeom Jang ),( Mi Hui Bak ),( Eun Hwa Baek ),( Ki-ho Park ),( Sun In Hong ),( Oh-hyun Cho ),( In-gyu Bae ) 대한내과학회 2018 The Korean Journal of Internal Medicine Vol.33 No.5
Background/Aims: We evaluated the effects of a multifaceted intervention for controlling a carbapenem-resistant Acinetobacter baumannii (CRAB) epidemic in an intensive care unit (ICU) with no restrictions on carbapenem use. Methods: This study was conducted in a medical ICU between April 2012 and June 2016. The baseline infection control programs included surveillance cultures, contact precautions, and environmental cleaning. However, increases in the detection of CRAB isolates beginning in May 2013 led to the implementation of a new protocol, consisting of universal glove and gown use with daily chlorhexidine bathing for all patients in combination with baseline programs. The efficacy of the intervention was subjected to interrupted time series (ITS) analysis. Results: The multifaceted intervention led to a decrease in the incidence of CRAB from 17.65 to 0.89 cases per 1,000 patient-days, during the study period (p < 0.001). ITS analysis revealed a significant change in the trend of CRAB incidence (-0.413, p < 0.001). Over this same period, mean monthly use of carbapenems increased from 143.54 ± 95.73 to 204.95 ± 78.43 doses per 1,000 patient-days (p = 0.018). Conclusions: Our multifaceted intervention reduced the incidence of CRAB acquisition in an ICU where carbapenem use was not restricted.
선박엔진의 SCR 성능 향상 및 촉매재생을 위한 플라즈마 버너 실증 평가
조성권(Sungkwon Jo),조동현(Donghyun Cho),이대훈(Dae Hoon Lee),김관태(Kwan-Tae Kim),이재옥(Jae-Ok Lee),송영훈(Young-Hoon Song),장재환(Jae Hwan Jang),노희환(Hui Hwan Roh),박건면(Geon-Myeon Bak),이태우(Tae-Woo Lee),한현식(Hyun-Sik Han) 대한기계학회 2018 大韓機械學會論文集B Vol.42 No.4
선박엔진 배기가스의 국제적인 규제가 강화되고 있으며, 규제를 적극적으로 대응하기 위한 기술이 필요하다. 본 연구에서는 플라즈마 버너를 적용하여 선박엔진 배기가스의 질소산화물 저감 성능을 향상시키고, 촉매 재생에 활용하기 위한 가능성을 확인하기 위한 연구를 수행하였다. 실험을 통해, 플라즈마 버너의 연소 성능을 확인할 수 있었으며, 공연비 대비 40% 이하의 공기 조건에서의 안정적인 연소와 배기가스의 산소를 활용한 연료의 완전 연소를 확인하였다. 또한, 요소수를 환원제로 활용한 탈질실험을 수행하였으며, 플라즈마 버너를 통해 탈질 촉매의 작동 영역으로 온도를 제어하여 탈질 성능을 향상시킬 수 있음을 확인하였다. 또한, 촉매 재생을 통해 촉매의 성능이 회복되는 결과로부터 플라즈마 버너를 활용하여 탈질 설비의 내구성 향상에 기여할 수 있음을 확인하였다. We investigated the possibility of applying a plasma burner to improve NOx-reduced performance of a marine engine and to utilize it for catalyst regeneration. Through experiments, we confirmed that stable combustion can be obtained under an air condition of less than 40% air-fuel ratio and can achieve complete combustion of the fuel using oxygen in the exhaust gas. A deNOx experiment using urea as a reducing agent was performed. We confirmed that deNOx performance can be improved by increasing the temperature of the SCR with a plasma burner. Moreover, we confirmed that the performance of the SCR was restored through the regeneration process, implying that the use of the plasma burner can contribute to a durability improvement of the deNOx system in a marine engine.