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
目的探讨以自评方式填写中文版耳鸣残疾量表(the Chinese version of the tinnitus handicap inventory,THI-C)的可靠性及临床实用性。方法对以耳鸣为第一主诉的180例患者分别采用患者自评及医评两种方式收集初诊THIC资料,并以自评方式...目的探讨以自评方式填写中文版耳鸣残疾量表(the Chinese version of the tinnitus handicap inventory,THI-C)的可靠性及临床实用性。方法对以耳鸣为第一主诉的180例患者分别采用患者自评及医评两种方式收集初诊THIC资料,并以自评方式收集复诊患者的THI-C资料,统计自评及医评THI-C完成率,比较两者得分差异,计算自评与医评的符合率及耗时差异。结果初诊THI-C医评完成率为98.33%,自评完成率为43.89%,自评与医评符合率为16.38%,自评分(48.71±26.75)显著高于医评分(41.11±21.69,P<0.01),自评耗时(3.93±2.44分钟)明显低于医评耗时(7.67±1.81分钟,P<0.01)。复诊中,2诊至5诊THI-C完成率分别为49.4%、51.2%、43.5%、46.7%,平均耗时分别为3.44±1.76、2.97±1.62、2.88±1.48、2.42±1.44分钟。结论以自评方式填写THI-C评估耳鸣严重程度可靠性较低,临床实用性有限。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.
文摘目的探讨以自评方式填写中文版耳鸣残疾量表(the Chinese version of the tinnitus handicap inventory,THI-C)的可靠性及临床实用性。方法对以耳鸣为第一主诉的180例患者分别采用患者自评及医评两种方式收集初诊THIC资料,并以自评方式收集复诊患者的THI-C资料,统计自评及医评THI-C完成率,比较两者得分差异,计算自评与医评的符合率及耗时差异。结果初诊THI-C医评完成率为98.33%,自评完成率为43.89%,自评与医评符合率为16.38%,自评分(48.71±26.75)显著高于医评分(41.11±21.69,P<0.01),自评耗时(3.93±2.44分钟)明显低于医评耗时(7.67±1.81分钟,P<0.01)。复诊中,2诊至5诊THI-C完成率分别为49.4%、51.2%、43.5%、46.7%,平均耗时分别为3.44±1.76、2.97±1.62、2.88±1.48、2.42±1.44分钟。结论以自评方式填写THI-C评估耳鸣严重程度可靠性较低,临床实用性有限。