본 연구는 현지(on-site) 빗물관리에 필요한 지붕면 누적유출용적 예측을 위한 경험식을 제안하였다. 건축물 지붕면은 좁은 면적으로 인해 기존 유출해석 기법의 적용이 어려운 것으로 파악되었으며, 지붕면 유출조건을 고려한 강우깊이(D)-누적유출용적(V)간의 이론적 관계식을 수립하였다. 2005년부터 2007년까지 2년간 실제 강우량과 지붕면의 유출용적을 측정하여 이론적 관계식으로 계산된 누적유출용적과 실측 누적유출용적 자료를 비교 검토하였다. 실측자료의

From the beginning of the minimalist program, many researchers have sought the key to the Extended Projection Principle. It was treated as the satisfaction of the strong feature checking of T or Agr (Chomsky 1993, 1995), as the universal requirement of thematization of the subject, or as a side effect of Case feature checking (Martin 1999). On the other hand, Collins (1997) claims that the EPP simply requires that some material occupy the position of Spec-T. On the way of his argumentation, he shows that Locative Inversion (henceforth LI) is a representative case of the EPP satisfaction. Since then, LI has been in the center of debate concerning the nature of the EPP. In this paper, we will show that a is driven by defective feature checking/Agree not for the mere EPP satisfaction. Thus, the approach we take in this paper supports the view that the EPP is not an independent requirement but is closely related to feature checking/Agree.

Korean ECM constructions seem to give rise to many interesting problems with the minimalist program. Of these problems, we are mainly concerned with the following: (A) How is the ECMed NP/DP assigned accusative Case despite the fact that the clause containing it is supposed to be finite? (B) How can the ECMed NP/DP be affected by the accusative Case assigner though finite clauses are phases? Accessing answers to these problems, we will find out that some unknown properties of the embedded predicates in Korean ECM constructions are involved in the transitivity restriction, and that there is a derivational mechanism for determining whether given movement is A or A`.

Nitrifier consortium immobilized in polyvinyl alcohol was used for the removal of ammonia nitrogen from synthetic aquaculture water in the airlift bioreactor. At the aeration rate of 0.15 vvm and bead packing volume fraction of 20%, airlift bioreactor was operated effectively for a removal of ammonia nitrogen and for a stability of operation. Ammonia nitrogen removal rate by airlift bioreactor was continuously increased with decreasing hydraulic residence time. At the HRT(hydraulic residence time) of 0.3 hour, ammonia nitrogen removal rate was 84.3 g/㎥·d and the highest ammonia nitrogen removal rate was 130.8 g/㎥·d when HRT was 0.1 hour.