Optimizing operational parameters for syngas production of Texaco coal-water slurry gasifier studied in this paper is a complicated nonlinear constrained problem concerning 3 BP(Error Back Propagation) neural networks...Optimizing operational parameters for syngas production of Texaco coal-water slurry gasifier studied in this paper is a complicated nonlinear constrained problem concerning 3 BP(Error Back Propagation) neural networks. To solve this model, a new 3-layer cultural evolving algorithm framework which has a population space, a medium space and a belief space is firstly conceived. Standard differential evolution algorithm(DE), genetic algorithm(GA), and particle swarm optimization algorithm(PSO) are embedded in this framework to build 3-layer mixed cultural DE/GA/PSO(3LM-CDE, 3LM-CGA, and 3LM-CPSO) algorithms. The accuracy and efficiency of the proposed hybrid algorithms are firstly tested in 20 benchmark nonlinear constrained functions. Then, the operational optimization model for syngas production in a Texaco coal-water slurry gasifier of a real-world chemical plant is solved effectively. The simulation results are encouraging that the 3-layer cultural algorithm evolving framework suggests ways in which the performance of DE, GA, PSO and other population-based evolutionary algorithms(EAs) can be improved,and the optimal operational parameters based on 3LM-CDE algorithm of the syngas production in the Texaco coalwater slurry gasifier shows outstanding computing results than actual industry use and other algorithms.展开更多
Human civilization is currently undergoing another important turn. Following the economic globalization,cultural globalization has become an inevitable trend.
Teaching target culture has been widely acknowledged as an indispensible component in the overall foreign language education. This paper presents a feasible way to effectively integrate cultural teaching into traditio...Teaching target culture has been widely acknowledged as an indispensible component in the overall foreign language education. This paper presents a feasible way to effectively integrate cultural teaching into traditional classroom instruction by using Moran＇s theoretical frameworks, namely, the ＂Cultural Knowings Framework＂ and ＂Experiential Learning Cycle＂, as the foundation and guidance of the course design. It highlights the combination of teaching culture with the training of the basic language skills, adding a cultural dimension to the language learning. This teaching method can fully arouse the students＇ attention to cultural learning and provide more meaningful activities to physically and mentally engage students both in class and after class. By going through a series of assigned tasks individually or collectively, the students not only obtain the desired cultural knowledge but strengthen their language ability as well as other skills pivotal and necessary for becoming independent and lifetime learners.展开更多
基金Supported by the National Natural Science Foundation of China(61174040,U1162110,21206174)Shanghai Commission of Nature Science(12ZR1408100)
文摘Optimizing operational parameters for syngas production of Texaco coal-water slurry gasifier studied in this paper is a complicated nonlinear constrained problem concerning 3 BP(Error Back Propagation) neural networks. To solve this model, a new 3-layer cultural evolving algorithm framework which has a population space, a medium space and a belief space is firstly conceived. Standard differential evolution algorithm(DE), genetic algorithm(GA), and particle swarm optimization algorithm(PSO) are embedded in this framework to build 3-layer mixed cultural DE/GA/PSO(3LM-CDE, 3LM-CGA, and 3LM-CPSO) algorithms. The accuracy and efficiency of the proposed hybrid algorithms are firstly tested in 20 benchmark nonlinear constrained functions. Then, the operational optimization model for syngas production in a Texaco coal-water slurry gasifier of a real-world chemical plant is solved effectively. The simulation results are encouraging that the 3-layer cultural algorithm evolving framework suggests ways in which the performance of DE, GA, PSO and other population-based evolutionary algorithms(EAs) can be improved,and the optimal operational parameters based on 3LM-CDE algorithm of the syngas production in the Texaco coalwater slurry gasifier shows outstanding computing results than actual industry use and other algorithms.
文摘Human civilization is currently undergoing another important turn. Following the economic globalization,cultural globalization has become an inevitable trend.
文摘Teaching target culture has been widely acknowledged as an indispensible component in the overall foreign language education. This paper presents a feasible way to effectively integrate cultural teaching into traditional classroom instruction by using Moran＇s theoretical frameworks, namely, the ＂Cultural Knowings Framework＂ and ＂Experiential Learning Cycle＂, as the foundation and guidance of the course design. It highlights the combination of teaching culture with the training of the basic language skills, adding a cultural dimension to the language learning. This teaching method can fully arouse the students＇ attention to cultural learning and provide more meaningful activities to physically and mentally engage students both in class and after class. By going through a series of assigned tasks individually or collectively, the students not only obtain the desired cultural knowledge but strengthen their language ability as well as other skills pivotal and necessary for becoming independent and lifetime learners.
