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Mg(OH)₂를 이용한 습식탈황에서 폐슬러리 처리특성연구
김근범,이은덕,박영성,임봉수 大田大學校 環境問題硏究所 1998 환경문제연구소 논문집 Vol.3 No.-
Properties analyses and treatment characteristics of waste slurry discharged in the wetted flue gas desulfurization process using Mg(OH)₂as a absorbent were investigated. Aeration and coagulation test were carried out to evaluate variation of some factors such as COD, SS, T-N, etc. related to waste slurry treatment. The hydraulic retention time(HRT) and coagulant dosage rate were applied as operating variables in experiment. As experimental results, the reduction effects of COD, SS in aeration test were distinct, due to oxidation of SO₃ and floc, formation of suspended solids. It was also found that the reduction efficiencies of SS and T-P in coagulation test are higher than 90%.
방사 기저 함수 회로망을 이용한 비선형 혼돈 시스템의 직접 적응 제어기 설계
김근범,박진배,최윤호 연세대학교 산업기술연구소 1997 논문집 Vol.29 No.2
Radial basis function networks(RBFN) are widely used for interpolations and function approximation problems and because of their properties such as fast convergence and superior local approximation ability, conventional multilayered perceptron networks(MLPN) are now being replaced by RBFN. So in this paper, for the control of chaotic systems which are highly nonlinear, a direct adaptive control method using a radial basis function network is proposed. Compared with indirect adaptive methods, direct adaptive methods do not need the off-line identification of the system so that fast and effective control results could be obtained. We simulate on the two representative continuous nonlinear chaotic systems, Duffing and Lorenz systems, and the validity of the designed direct adaptive control system is shown.