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Water Environment Modeling

為了解決Hydraulic press的問題，作者Liu, Clark C. K.,Pengzhi, Lin,Xiao, Hong 這樣論述：

Clark C.K. Liu is Emeritus Professor and former Chair of the Department of Civil and Environmental Engineering at the University of Hawaii. He received his M.S. and Ph.D. from the University of Mississippi and Cornell University, respectively. He has served as a Senior Engineer and Senior Scientist

in the New York State Department of Environmental Conservation, and as the Program Director of Environmental Engineering in the U.S. National Science Foundation (NSF). Pengzhi Lin is a Professor and Vice Director of State Key Laboratory of Hydraulics and Mountain River Engineering at Sichuan Univers

ity. He received his M.S. and Ph.D. from the University of Hawaii and Cornell University, respectively. He has worked at Hong Kong Polytechnic University and National University of Singapore as Postdoctoral Fellow and Associate Professor, respectively. He is author of Numerical Modeling of Water Wav

es (CRC Press, 2008). He is Chief Editor of Applied Ocean Research and Associate Editor for the Journal of Hydro-Environment Research and Journal of Hydraulic Engineering.Hong Xiao is a Professor and Vice Director of Hydroinformatics Institute of the State Key Laboratory of Hydraulics and Mountain R

iver Engineering at Sichuan University, China. He received his M.S. and Ph.D. from Tianjin University and Florida State University, respectively. During 2017-2018 he was a Visiting Scholar at Kyoto University, Japan. His research interests cover include water-related disasters and environmental issu

es.

Hydraulic press進入發燒排行的影片

短期一般沖刷與彎道基腳沖刷預測研究-以清水溪為例

為了解決Hydraulic press的問題，作者黃偉勝 這樣論述：

具坡陡流急卵礫石之清水溪河段為濁水溪重要支流之一，於洪水上漲過程發生急劇短期一般沖刷，並促使斜向流於河道堤防基腳沖刷。根據濁水溪水系歷史災損情形，清水溪福興圳護岸為近年河道沖刷潛勢較高河段。為了瞭解堤防基礎沖刷災害與河道水砂條件間之關係，本研究採用 SRH-2D 二維水理輸砂模式執行動床水理演算，並根據四河局 (2017) 埋設之無線沖刷追蹤粒子之沖刷深度監測，以2016~2017年颱洪事件作為模擬條件，並完成檢定與驗證。經由一系列模擬結果，影響河道沖刷之因素包括:有效洪水稽延(tp)、來流含砂濃度(SSC-Q)、地形高程之改變。此外，河道短期一般沖刷(dgs)與彎道基腳沖刷深度(dbs)

，係根據既有現場觀測資料與模擬成果，並納入有效洪水稽延(tp)與河道幾何因子(B/R)-水面寬與曲率半徑之比值，經與國內外相關研究做比較，初步顯示本研究推導經驗式適用於本土化之河川。

Water Environment Modeling

為了解決Hydraulic press的問題，作者Liu, Clark C. K.,Pengzhi, Lin,Xiao, Hong 這樣論述：

Clark C.K. Liu is Emeritus Professor and former Chair of the Department of Civil and Environmental Engineering at the University of Hawaii. He received his M.S. and Ph.D. from the University of Mississippi and Cornell University, respectively. He has served as a Senior Engineer and Senior Scientist

in the New York State Department of Environmental Conservation, and as the Program Director of Environmental Engineering in the U.S. National Science Foundation (NSF). Pengzhi Lin is a Professor and Vice Director of State Key Laboratory of Hydraulics and Mountain River Engineering at Sichuan Univers

ity. He received his M.S. and Ph.D. from the University of Hawaii and Cornell University, respectively. He has worked at Hong Kong Polytechnic University and National University of Singapore as Postdoctoral Fellow and Associate Professor, respectively. He is author of Numerical Modeling of Water Wav

es (CRC Press, 2008). He is Chief Editor of Applied Ocean Research and Associate Editor for the Journal of Hydro-Environment Research and Journal of Hydraulic Engineering.Hong Xiao is a Professor and Vice Director of Hydroinformatics Institute of the State Key Laboratory of Hydraulics and Mountain R

iver Engineering at Sichuan University, China. He received his M.S. and Ph.D. from Tianjin University and Florida State University, respectively. During 2017-2018 he was a Visiting Scholar at Kyoto University, Japan. His research interests cover include water-related disasters and environmental issu

es.

應用微生物燃料電池同時處理有機污染物與六價鉻之研究

為了解決Hydraulic press的問題，作者林志達 這樣論述：

過去在處理廢水的過程，不但耗能、成本高等缺點，再加上近年來出現能源短缺的問題，為了解決以上的問題，因此使用微生物燃料電池作為處理技術，應用於兩種不同廢水以及產生能源。本研究利用雙槽式微生物燃料電池結合質子交換薄膜探討同步氧化還原粉圓廢水與六價鉻實廠廢水，並探討反應過程中的發電效率及汙染物的去除率；粉圓廢水的主要特性為含有高濃度的有機物廢水，可以利用厭氧生物將粉圓廢水中的有機物降解，形成電子與質子；而六價鉻是電鍍工業中常見的有毒污染物，利用外導線將電子傳遞至六價鉻廢水中，使六價鉻接受電子形成較低毒性的三價鉻，甚至是形成氫氧化鉻的沉澱物。陽極在不同的水力停留時間下，在極化曲線中，以最長的水力停留

時間(26小時)可以表現出最佳的性能，內阻為510Ω，並可以達到最高COD去除率80.93％，產生的庫倫效率為21.56％，而六價鉻還原率也在26小時的水力停留時間是最高的，還原率為96.6％；陰極在不同pH值的六價鉻實廠廢水下，在極化曲線中，以pH值為1.3可以表現出最佳的性能，內阻為510Ω，並可以產生最高功率密度為35.74 mW/m2、電流密度為120.83 mA/m2、電壓為0.2958 V，而六價鉻的去除率可以在48小時達到90％以上，最後循環伏安法了解到陽極與陰極有明顯的氧化還原反應，並表明兩者同步進行氧化還原。