Augustine has been claimed to be the progenitor of the theory of just war in Christianity. In the medieval age his position was taken advantage of by the Roman Catholic Church to justify the persecution of heresies, the crusades, and other wars. It is true that especially in his controversy with the Donatists, he articulated the reasons and methods of religious coercion. Yet he did not advocate relgious coercion outrightly. Augustine, who valued the universal nature of the Catholic Church, abhorred the provincial character of the Donatist Church. He took notice of escapism in the Donatists' understanding of religious purity. Moreover, Augustine chided them for practicing rebaptism. This rite had been confirmed in North Africa, but not anywhere else. Augustine asserted that though the baptism administered in the Donatist Church was valid, it was not efficacious. So long as they remained separated from the Catholic Church, their baptism did not work remission of sins. Augustine believed that for the maintenance of order and peace, religious coercion can be exercised to schismatics. The Christian order ushered in by the advent of Constantine should be preserved not only in the world but also in the church. Furthermore, Augustine thought that as a means of discipline religious coercion is necessary. Yet, it is not for punishment or persecution per se but for correction and education. He even believed that it is a means of love. Because people who love never do evil, even their coercive measure can be justified.

본 논문에서는 두 가지 대표적인 하천수질모형을 비교분석하였다. 정상상태 모형으로는 QUAL2E, 비정상상태 모형으로는 CE-QUAL-RIV1을 선택하여 동일한 반응계수 및 경계조건 하에서 두 모형의 계산결과를 서로 비교해 보았다. 각 모형에 대하여 수질변동을 계산하기 위해 적용된 방정식을 서로 비교하였으며, 두 가지 수질모형을 이용하여 대청댐 이하 금강본류의 수질을 모의하였다. 두 모형은 기본 알고리듬이 매우 유사하므로, 모형구축에 필요한 입력자료도 매

자연하천에서의 이송-확산 과정의 모의를 위하여 입자위치의 이산확률분포에 기초한 2차원 수송 모형을 개발하였다. 제안된 모형에서는 단위 시간간격동안 격자간의 질량이송을 예측하기 위하여 평균과 분산의 함수로 나타내어진 확률분포를 사용하였다. 개발된 모형은 유속, 확산계수, 단면적이 일정한 단순영역에 대하여 수치확산이 없는 해를 구하였고, 양의 확률을 만족시키는 안정조건이 성립한다면, 해석해와 다른 유한차분법과 비교하였을 때, 좋은 결과를 나타내었다. 본 모