针对PTA装置氧化反应器升降负荷过程中存在的滞后大、动态响应慢、非线性严重、回路间关联性强等控制难点,在多变量预测控制器基础上设计了自动升降负荷系统,极大提高了生产操作平稳度,降低了物耗和能耗及产品质量的波动,取得良好的控制效果和显著的经济效益。
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