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針對PTA裝置氧化反應器升降負荷過程中存在的滯后大、動態(tài)響應慢、非線性嚴重、回路間關(guān)聯(lián)性強等控制難點,在多變量預測控制器基礎上設計了自動升降負荷系統(tǒng),極大提高了生產(chǎn)操作平穩(wěn)度,降低了物耗和能耗及產(chǎn)品質(zhì)量的波動,取得良好的控制效果和顯著的經(jīng)濟效益。
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ZnO–PbO–B2O3 glassesas gamma-ray shielding materials Harvinder Singh a, Kulwant Singh a, Leif Gerward b, * , Kanwarjit Singh c, Hari Singh Sahota d , Rohila Nathuram e a Department of Physics, Guru Nanak Dev University, Amritsar-143005, Punjab, India b Department of Physics, Technical University of Denmark, Building 307, DK-2800 Kgs. Lyngby, Denmark c Department of Applied Physics, Guru Nanak Dev