The control design, based on self-adaptive PID with genetic algorithms(GA) tuning on-line was investigated, for the temperature control of industrial microwave drying rotary device with the multi-layer(IMDRDWM) and wi...The control design, based on self-adaptive PID with genetic algorithms(GA) tuning on-line was investigated, for the temperature control of industrial microwave drying rotary device with the multi-layer(IMDRDWM) and with multivariable nonlinear interaction of microwave and materials. The conventional PID control strategy incorporated with optimization GA was put forward to maintain the optimum drying temperature in order to keep the moisture content below 1%, whose adaptation ability included the cost function of optimization GA according to the output change. Simulations on five different industrial process models and practical temperature process control system for selenium-enriched slag drying intensively by using IMDRDWM were carried out systematically, indicating the reliability and effectiveness of control design. The parameters of proposed control design are all on-line implemented without iterative predictive calculations, and the closed-loop system stability is guaranteed, which makes the developed scheme simpler in its synthesis and application, providing the practical guidelines for the control implementation and the parameter design.展开更多
Many new types of rolling mills have been studied and developed corresponding to the needs of improvement in productivity and quality.This presentation reflects back at some of the innovative technologies,which were d...Many new types of rolling mills have been studied and developed corresponding to the needs of improvement in productivity and quality.This presentation reflects back at some of the innovative technologies,which were developed by Mitsubishi-Hitachi Metals Machinery,Inc.(hereinafter referred to as M-H),including the evolution of the pair cross mill,mill stabilizing device,on-line roll profiler,shape meter for hot-rolling,endless hot-rolling, recent application of UCM,and M-H split housing type 20-high mill.展开更多
The impacts of the current digital era are growing more and more on the way in which higher education(HE)offers learning programs at every level.Smart learning(SL)represents the evolution of educational approaches and...The impacts of the current digital era are growing more and more on the way in which higher education(HE)offers learning programs at every level.Smart learning(SL)represents the evolution of educational approaches and techniques that capitalizes on all the opportunities deriving from new digital ecosystems.This study argues that the usefulness of HE can benefit from rethinking the traditional active learning(AL)model to smart ones.Thus,this research aims at investigating how to adapt the performance evaluation when the operations of HE turn to digitalized models.Therefore,this paper designs a research approach that allows accounting for the effects that the adoption of some SL strategies and tools has on the engagement of students and the aggregate performance of HE programs that adopt AL.The results of this study would help academics and HE managers assess the effectiveness of SL initiatives they plan to adopt.展开更多
基金Project(51090385) supported by the Major Program of National Natural Science Foundation of ChinaProject(2011IB001) supported by Yunnan Provincial Science and Technology Program,China+1 种基金Project(2012DFA70570) supported by the International Science & Technology Cooperation Program of ChinaProject(2011IA004) supported by the Yunnan Provincial International Cooperative Program,China
文摘The control design, based on self-adaptive PID with genetic algorithms(GA) tuning on-line was investigated, for the temperature control of industrial microwave drying rotary device with the multi-layer(IMDRDWM) and with multivariable nonlinear interaction of microwave and materials. The conventional PID control strategy incorporated with optimization GA was put forward to maintain the optimum drying temperature in order to keep the moisture content below 1%, whose adaptation ability included the cost function of optimization GA according to the output change. Simulations on five different industrial process models and practical temperature process control system for selenium-enriched slag drying intensively by using IMDRDWM were carried out systematically, indicating the reliability and effectiveness of control design. The parameters of proposed control design are all on-line implemented without iterative predictive calculations, and the closed-loop system stability is guaranteed, which makes the developed scheme simpler in its synthesis and application, providing the practical guidelines for the control implementation and the parameter design.
文摘Many new types of rolling mills have been studied and developed corresponding to the needs of improvement in productivity and quality.This presentation reflects back at some of the innovative technologies,which were developed by Mitsubishi-Hitachi Metals Machinery,Inc.(hereinafter referred to as M-H),including the evolution of the pair cross mill,mill stabilizing device,on-line roll profiler,shape meter for hot-rolling,endless hot-rolling, recent application of UCM,and M-H split housing type 20-high mill.
文摘The impacts of the current digital era are growing more and more on the way in which higher education(HE)offers learning programs at every level.Smart learning(SL)represents the evolution of educational approaches and techniques that capitalizes on all the opportunities deriving from new digital ecosystems.This study argues that the usefulness of HE can benefit from rethinking the traditional active learning(AL)model to smart ones.Thus,this research aims at investigating how to adapt the performance evaluation when the operations of HE turn to digitalized models.Therefore,this paper designs a research approach that allows accounting for the effects that the adoption of some SL strategies and tools has on the engagement of students and the aggregate performance of HE programs that adopt AL.The results of this study would help academics and HE managers assess the effectiveness of SL initiatives they plan to adopt.
