목적 : S-PBL학습방법이 학생들의 학업성취도와 만족도에 영향을 미치는지 알아보기 위해 교육평가도구를 개발하여 작업치료과 학생들의 교육양상을 살펴보고, 교과목 운영에 있어서 통합교과목과 교과목 부분통합으로 운영하는 학과간의 차이를 비교분석하여, S-PBL학습방법의 효과를 밝히는데 있다.연구 방법 : PBL학습을 기초로 S-PBL학습방법을 경험한 간호·보건계열 학생 966명을 대상으로 조사하였다. 작업치료과는 2년간 적용한 학년과 학기별 비교와 교과목 운영에 영향을 미치는지를 알아보기 위해 학과간의 비교분석으로 학생들의 교육효과를 검증하였다. 결과 : 첫째, 작업치료과 학생들은 1학기보다 2학기에 학업성취도와 학습만족도가 높았으며, 1학년보다 3학년이 모든 항목에서 높았다. 특히, 그룹활동 능력은 모든 학년에서 높았다. 둘째, S-PBL학습방법은 학습자들의 문제해결 능력, 그룹활동능력, 의사소통능력, 현장실무능력에 매우 유익한 학습방법임을 분석결과 모두 통계적으로 유의했다. 셋째, 부분통합 교과목 보다는 통합교과목으로 적용된 학생들의 학업성취도가 문제해결 능력을 제외한 모든 항목이 유의하게 높았으며, 교육환경과 운영방법에 대한 학습 만족도 역시 높았다. 결론 : 이상의 결과를 바탕으로 S-PBL학습방법은 통합교과목으로 운영되고, 매학기 학 년마다 적용한 학생일수록, 학업성취도와 학습만족도가 높다. 그러므로 작업치료학과에서 학생들의 통합능력과 문제해결능력, 실무능력들을 학교교육에서 갖추고자 한다면, 통합된 교과목으로 S-PBL학습방법을 매 학기와 학년마다 확대 적용할 필요성이있음을 시사해주었다.

In this study, catalytic decomposition of chlorobenzene, a model compound of dioxin, was investigated. Catalysts made of a mesoporous material SBA-15 were used. The effect of Pt impregnation on the catalytic activity was evaluated. The catalysts were characterized using BET and NH₃-TPD. The catalytic activity for chlorobenzene removal reaction was shown to increase with the acid amount of catalysts. Addition of Pt to Al-SBA-15 was also shown to enhance the catalytic activity.

In this study, toluene catalytic oxidation was investigated using various metal components (Cu, Ce, Ni, La and Zr) supported on Used FCC zeolite for the application of the waste recycling and odor reduction. Among the metals, 5 wt% Cu/zeolite showed the best catalytic activity. 100 % conversion was achieved at 300℃ which was 50℃ lower than that of other metal components. As increasing the amount of doped Cu, the CuO was formed and the surface area and pore size were decreased. By the reduction treatment before toluene oxidation, the catalytic activity of the oxidation below 250℃ was improved. No decrease of conversion was observed during the continuos reaction at 300℃ for 48 h.

The aim of this study is to investigate the potential of Al-MCM-48 for the dioxin decomposition reaction. As a model reaction for the dioxin decomposition, chlorobenzene was decomposed over Al-MCM-48 in a fixed-bed reactor. Characteristics of catalysts were determined by N₂ adsorption-desorption isotherms (BET), and NH₃-temperature programmed desorption (NH₃-TPD), X-ray diffraction (XRD) methods. The activity of Al-MCM-48 (15) was higher than that of Al-MCM-48 (60) due to its higher amount acid sites. It can be concluded from the results of this study that Al-MCM-48 with higher acidity can be effectively applied to dioxin decomposition catalyst.