This paper describes the self—adjustment of some tuning-knobs of the generalized predictive controller(GPC).A three feedforward neural network was utilized to on line learn two key tuning-knobs of GPC,and BP algorith...This paper describes the self—adjustment of some tuning-knobs of the generalized predictive controller(GPC).A three feedforward neural network was utilized to on line learn two key tuning-knobs of GPC,and BP algorithm was used for the training of the linking-weights of the neural network.Hence it gets rid of the difficulty of choosing these tuning-knobs manually and provides easier condition for the wide applications of GPC on industrial plants.Simulation results illustrated the effectiveness of the method.展开更多
The relation between structures and properties of polyurethane are investigated by modern physical and chemical methods.The results obtained are as follows:the effects of the content of self-crosslinking agent on the ...The relation between structures and properties of polyurethane are investigated by modern physical and chemical methods.The results obtained are as follows:the effects of the content of self-crosslinking agent on the properties of polyurethane,i.e.,dispersion stability,dynamical viscoelasticity and mechanical properties are discussed.It is found that the optimum molar ratio of epichlorohydrin and diethylenetriamine is 1:2.A mois-展开更多
The Belt and Road Initiative contains the aspiration of Chinese nation to pursue ideological freedom and desire of strengthening international exchanges and cooperation. This paper takes the Belt and Road Initiative f...The Belt and Road Initiative contains the aspiration of Chinese nation to pursue ideological freedom and desire of strengthening international exchanges and cooperation. This paper takes the Belt and Road Initiative for example,emphasizing the interpretation of the inheritance and development of Chinese culture so as to study the importance of Culture Self-Consciousness in Chinese Philosophy,in the context of English globalization. That is to say,this paper stresses the spirits and the stand of nation 's demonstration on pursuing peace,cooperation and sustainable development in the civilization continuity from traditional China to the contemporary China,with practical philosophic view.展开更多
目的对心理健康促进量表(Mental Health Promotion Scale,MHPS)进行汉化,并在护理人员中检验其信效度。方法依照Brislin翻译模式对英文版量表进行翻译、回译、文化调适和预调查,形成中文版MHPS。2022年12月至2023年4月,选取959名临床护...目的对心理健康促进量表(Mental Health Promotion Scale,MHPS)进行汉化,并在护理人员中检验其信效度。方法依照Brislin翻译模式对英文版量表进行翻译、回译、文化调适和预调查,形成中文版MHPS。2022年12月至2023年4月,选取959名临床护士展开问卷调查,评价量表的信效度。结果中文版MHPS探索性因子分析提取12个公因子,累计方差贡献率为74.634%;其条目水平内容效度指数(I-CVI)0.900~1.000,量表水平内容效度指数(S-CVI/Ave)为0.996。验证性因子分析显示,模型各项指标均达标准,模型拟合度良好。量表总的Cronbach′sα系数为0.961,重测信度为0.888,Spearman-Brown折半信度系数为0.889。结论中文版MHPS量表的信效度良好,可作为我国护理人员心理健康促进能力的测评工具。展开更多
基金Supported by the National 863 CIMS Project Foundation(863-511-010)Tianjin Natural Science Foundation(983602011)Backbone Young Teacher Project Foundation of Ministry of Education
文摘This paper describes the self—adjustment of some tuning-knobs of the generalized predictive controller(GPC).A three feedforward neural network was utilized to on line learn two key tuning-knobs of GPC,and BP algorithm was used for the training of the linking-weights of the neural network.Hence it gets rid of the difficulty of choosing these tuning-knobs manually and provides easier condition for the wide applications of GPC on industrial plants.Simulation results illustrated the effectiveness of the method.
文摘The relation between structures and properties of polyurethane are investigated by modern physical and chemical methods.The results obtained are as follows:the effects of the content of self-crosslinking agent on the properties of polyurethane,i.e.,dispersion stability,dynamical viscoelasticity and mechanical properties are discussed.It is found that the optimum molar ratio of epichlorohydrin and diethylenetriamine is 1:2.A mois-
文摘The Belt and Road Initiative contains the aspiration of Chinese nation to pursue ideological freedom and desire of strengthening international exchanges and cooperation. This paper takes the Belt and Road Initiative for example,emphasizing the interpretation of the inheritance and development of Chinese culture so as to study the importance of Culture Self-Consciousness in Chinese Philosophy,in the context of English globalization. That is to say,this paper stresses the spirits and the stand of nation 's demonstration on pursuing peace,cooperation and sustainable development in the civilization continuity from traditional China to the contemporary China,with practical philosophic view.
文摘目的对心理健康促进量表(Mental Health Promotion Scale,MHPS)进行汉化,并在护理人员中检验其信效度。方法依照Brislin翻译模式对英文版量表进行翻译、回译、文化调适和预调查,形成中文版MHPS。2022年12月至2023年4月,选取959名临床护士展开问卷调查,评价量表的信效度。结果中文版MHPS探索性因子分析提取12个公因子,累计方差贡献率为74.634%;其条目水平内容效度指数(I-CVI)0.900~1.000,量表水平内容效度指数(S-CVI/Ave)为0.996。验证性因子分析显示,模型各项指标均达标准,模型拟合度良好。量表总的Cronbach′sα系数为0.961,重测信度为0.888,Spearman-Brown折半信度系数为0.889。结论中文版MHPS量表的信效度良好,可作为我国护理人员心理健康促进能力的测评工具。