본 연구는 유아 게임 활용 교육 및 게임 리터러시 코칭을 위해 유아 교사의 인식을 알아보기 위한 것으로 유아 교육기관에 재직 중인 교사 558명을 대상으 로 조사하였다. 설문은 미디어와 게임을 활용한 교육 현황, 유아 게임 리터러시 와 교육환경에 대한 교사의 인식으로 구성하였으며, 수집된 자료는 기술 통계분 석을 통해 수준을 분석하였다. 연구 결과 첫째, 교사는 미디어를 활용한 교육 능력은 긍정적이나, 미디어 리 터러시에 대한 교사 교육은 부족하다고 인식하고 있는 것으로 나타났다. 둘째, 교사는 게임을 교육에 활용할 의사는 있으나, 교육에 게임을 적용한 경험은 그 리 많지 않았다. 셋째, 유아의 게임 이용에 대하여 교사는 유아의 게임 리터러시 를 활용한 교육이 필요하다고 인식하고 있는 것으로 나타났다. 넷째, 교사가 게 임 리터러시를 현장에 활용하기 위하여 게임 컨텐츠를 보강하여야 하며, 예산과 수업 운영 매뉴얼 지원, 부모의 인식개선을 위한 교육이 필요하다고 인식하는 것으로 나타났다. 본 연구는 유아 교사의 유아 게임 활용 및 유아 게임 리터러시 에 대한 긍정적 인식에도 불구하고 교사 역량과 환경을 고려할 때 유아 교육 현 장에 게임 리터러시를 적용하기에 어려움이 있음을 시사하고 있다.

PURPOSES: The objective of this study was to analyze variations in the vehicle driving behavior characteristics on signalized intersections according to the use of traffic enforcement camera (red light camera). METHODS: In order to analyze the driving behavior characteristics on signalized intersections when red light camera are installed, the target sites for investigation were selected depending on whether the red light camera is installed and accident rates increased after the installation. In particular, to analyze the characteristics of dilemma zones in signalized intersections, approach speed and deceleration speed of 3 type vehicles (passing vehicles during a yellow light, stopping at a yellow light, passing vehicles during a green light) were examined. Based on these data, the starting point, ending point, and distance of the dilemma zones were calculated. Also, the locations of increased traffic accidents and decreased accidents after the installation of the equipment were distinguished when analyzing the traffic accident characteristics. RESULTS : Analysis results revealed that there was a tendency for the dilemma zone distance to decrease after the installation of equipment(red light camera) in most sites. This tendency was found to be due to the decrease in the approaching speed of vehicles at intersections after the installation of equipment, resulting in the starting and ending points of dilemma zone to become closer to the stop line. Moreover, analysis showed that the number of traffic accidents decreased for most intersections after the installation of equipment and safety of the intersections increased somewhat. CONCLUSIONS : In general, installation of equipment(red light camera) caused the intersections approaching speed and dilemma zone distance to decrease. Decision-making is difficult for drivers in the dilemma zone, so the decrease in the dilemma zone distance implies an improvement in traffic safety. Furthermore, the number of accidents within intersections significantly decreased after the equipment was installed, leading to the conclusion that installation of the equipment affected the decrease in traffic accidents.

Soil texture, pH, organic carbon, organic matter, organic nitrogen, total phosphorus and chemical speciation were studied on the soil samples from Dok-do, Korea. Dok-do soil was composed mostly of silt, and textures were silt and silt loam. Soil pH was normally neutral but in some areas, acidic and very high content of organic matter. High content of organic matter explained the origin of Dok-do soil was related to the vegetation of the island. C/N ratio of the soil organic matter 15 meant the organic matter in the soil had moderately degraded plant debris. The most important chemical speciation of soil phosphorus in Dok-do was Residual P, meant the source of soil phosphorus was plant, and high ratio of Apatite P was considered to relate to the feces of water bird of the area.

Diglycidyl ether of bisphenol A (DGEBA)와 경화제로서 4, 4'-methylene dianiline(MDA) 에 반응성 첨가제 succinonitrile(SN)을 첨가한 새로운 계를 Differential Scanning Calorimetry (DSC)로 이용하여 30˚C부터 350˚C의 온도 범위에서 승온적 진행 방범(dynamic run method)으로 얻은 값을 가지고 최대 반응속도에서의 온도에 승온속도가 미치는 영향을 해석 할 수 있는 kissinger식을 적용하여 경화반응 속도론을 연구하였다. SN을 첨가한 DGEBA/MDA계의 활성화에너지 (Ea)와 pre-exponential factor(A) 그리고, SN이 첨가될 때 에폭시와 아민과의 반응속도 상수 k를 구하였다.