http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
장경수,강병희 한국지하수토양환경학회 2002 지하수토양환경 Vol.7 No.4
본 연구에서는 카올리나이트에 대한 납의 흡착 특성을 규명코자 실내에서 회분식 흡착시험을 수행하였다. 회분식 흡착시험에서는 흡착평형도달시간, 흡착능 및 흡착등온식을 연구하였고 pH와 혼합비에 따른 카올리나이트에 대한 납의 흡착특성에 미치는 영향을 분석하였다. 실험결과 카올리나이트에 대한 납의 흡착은 24시간 이내에 평형에 도달하였고 초기오염농도가 증가함에 따라 카올리나이트에 대한 납의 흡착량은 증가하나 초기농도 198mg/l 이상에서는 흡착율은 감소하였다 Freundlich 흡착등온식에 적용한 결과 흡착강도를 나타내는 계수 1/n은 0.9584이다. 그리고 pH 값이 증가함에 따라 초기오염농도에 관계없이 카올리나이트에 대한 납의 흡착량 및 흡착율은 증가되었으며 pH 8 이상에서는 일정한 값에 수렴하였다. 또한 혼합비가 증가함에 따라 흡착량은 증가하였다. 반면에 흡착율은 점점 증가하다가 일정 혼합비 8 이상에서는 감소하는 경향이 있음을 알 수 있었다. The laboratory adsorption batch tests were performed to investigate the adsorption characteristics of Pb on kaolinite. The characteristics such as adsorption equilibrium time, adsorption capacity, adsorption isotherm were studied, and also the effects of pH and the mixing ratio on the adsorption of Pb on kaolinite were investigated. Test results show that the adsorption equilibrium state was reached within 24 hours, and the adsorbed amount of Pb increased, but the adsorption efficiency over the initial concentration of 198 mg/l decreased, with increasing the initial concentration of Pb. And the adsorption constant, 1/n was obtained 0.9584 by Freundlich isotherm equation. Regardless of the initial concentration of Pb. the adsorbed amount of Pb as well as the adsorption efficiency were increased with increasing pH values and converged to a certain constant value above 8 of pH values. And also the adsorbed amount of Pb increased with the mixing ratio, but its efficiency increased with the mixing ratio up to 8 and then showed the decreasing tendency above that.
축제의 서비스품질이 방문자 만족과 행동의도에 미치는 영향
장경수 대한관광경영학회 2005 觀光硏究 Vol.19 No.3
The purpose of this paper is to find out festival service quality, and the relationships among festival service quality, visitor satisfaction, and behavior intention such as revisiting intention and recommendation. 3 factors of festival service quality were extracted from 17 items and titled “festival contents”, “site maintenance”, “information and convenience facilities". The results show that festival service quality positively influence visitor satisfaction and that visitor satisfaction has a positive influence on behavior intention. The factors of service quality which influence on visitor satisfaction are festival contents and site maintenance.
무선 ATM망에서의 트래픽 스케줄링의 페트리 넷 모델링
장경수 경인여자대학 2002 경인논집 Vol.- No.9
The demand of users for the multimedia traffic is increasing in the wired and wireless networks. In this paper, we present petri nets model of scheduling algorithm which is guaranteeing the Quality of Service for each kind of traffic class in the wireless ATM network. The petri nets model need not consider either large state space dimension nor complex computation. Petri nets model is graphical and mathematical model. Presenting the petri net model of scheduling algorithm for wireless ATM is easily extendable and provides an approximate analysis method.
문화관광지의 서비스품질이 방문자만족과 재방문의도에 미치는 영향에 관한 연구
장경수,송호철 문화관광연구학회 2002 문화관광연구 Vol.4 No.4
This study was designed to find service quality of cultural site as tourist destination and that effects to the visitor's satisfaction and revisit intention. The data(N=329) were collected Bulgug-sa temples that is the largest buddhist temple in Korea. LISREL 8.50 was used to analysis data. The results of analysis is that service quality was affected visitor's satisfaction and revisit intention and visitor's satisfaction to affect revisit intention.