鱼油因较低的水溶性限制了其应用。该研究通过在鱼油中添加不同浓度的磷脂,构建鱼油-磷脂自乳化体系,表征其理化性质,并结合药代动力学分析,系统评价该体系的体内吸收效果。结果表明,鱼油中添加6%(质量分数)磷脂能形成良好的自乳化乳液...鱼油因较低的水溶性限制了其应用。该研究通过在鱼油中添加不同浓度的磷脂,构建鱼油-磷脂自乳化体系,表征其理化性质,并结合药代动力学分析,系统评价该体系的体内吸收效果。结果表明,鱼油中添加6%(质量分数)磷脂能形成良好的自乳化乳液,可显著降低油水界面张力和乳液油滴粒径,抑制液滴聚并,增强乳液的稳定性;药代动力学实验表明,该磷脂-鱼油自乳化体系能显著缩短鱼油中二十碳五烯酸(eicosapentaenoic acid,EPA)和二十二碳六烯酸(docosahexaenoic acid,DHA)的达峰时间(T_(max)最快至1.5 h)并提高最大血药浓度(C_(max)达1.39 mg/mL),显著改善不同类型鱼油的体内吸收效果,其中EPA的0~24 h的血药浓度-时间曲线下面积(area under the plasma concentration-time curve from time 0 to 24 hours,AUC_(0-24h))可提升至2.66~3.74倍,DHA的AUC_(0-24h)可提升至3.20~7.44倍。该研究为高生物利用度的鱼油制剂产品开发提供了数据支撑和技术参考。展开更多
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
文摘鱼油因较低的水溶性限制了其应用。该研究通过在鱼油中添加不同浓度的磷脂,构建鱼油-磷脂自乳化体系,表征其理化性质,并结合药代动力学分析,系统评价该体系的体内吸收效果。结果表明,鱼油中添加6%(质量分数)磷脂能形成良好的自乳化乳液,可显著降低油水界面张力和乳液油滴粒径,抑制液滴聚并,增强乳液的稳定性;药代动力学实验表明,该磷脂-鱼油自乳化体系能显著缩短鱼油中二十碳五烯酸(eicosapentaenoic acid,EPA)和二十二碳六烯酸(docosahexaenoic acid,DHA)的达峰时间(T_(max)最快至1.5 h)并提高最大血药浓度(C_(max)达1.39 mg/mL),显著改善不同类型鱼油的体内吸收效果,其中EPA的0~24 h的血药浓度-时间曲线下面积(area under the plasma concentration-time curve from time 0 to 24 hours,AUC_(0-24h))可提升至2.66~3.74倍,DHA的AUC_(0-24h)可提升至3.20~7.44倍。该研究为高生物利用度的鱼油制剂产品开发提供了数据支撑和技术参考。
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.
