We propose a computing model in which individuals can automatically adjust their interaction intensity with their mentor according to the learning effect.This model is designed to investigate the cooperative dynamics ...We propose a computing model in which individuals can automatically adjust their interaction intensity with their mentor according to the learning effect.This model is designed to investigate the cooperative dynamics of the spatial prisoner's dilemma.More specifically,when the cumulative payoff of a learner is more than his reference earning,he will strengthen his interaction with his mentor;otherwise,he will reduce it.The experimental results indicate that this mechanism can improve the emergence of cooperation in a networked population and that the driving coefficient of interaction intensity plays an important role in promoting cooperation.Interestingly,under a certain social dilemma condition,there exists a minimal driving coefficient that leads to optimal cooperation.This occurs due to a positive feedback effect between the individual's satisfaction frequency and the number of effective neighbors.Moreover,we find that the experimental results are in accord with theoretical predictions obtained from an extension of the classical pair-approximation method.Our conclusions obtained by considering relationships with mentors can provide a new perspective for future investigations into the dynamics of evolutionary games within structured populations.展开更多
本课题设计的数控系统可定制界面是以QT为平台,采用脚本程序定制界面的功能来实现。包括人机界面的设计与构建,QT界面加载器和脚本引擎的扩展,以及底层接口主程序的实现等;同时在QT图形组件类的基础上构建了数控系统专用的图形组件类库...本课题设计的数控系统可定制界面是以QT为平台,采用脚本程序定制界面的功能来实现。包括人机界面的设计与构建,QT界面加载器和脚本引擎的扩展,以及底层接口主程序的实现等;同时在QT图形组件类的基础上构建了数控系统专用的图形组件类库,是实现界面可定制性的基础。该方法充分利用了QT在GUI(Graphical User Interface,图形用户界面)设计方面的优势以及新增的支持脚本功能模块,使定制人机界面的过程变得简便快捷。展开更多
基金Project supported by the National Natural Science Foundation of China(Grant No.61963013).
文摘We propose a computing model in which individuals can automatically adjust their interaction intensity with their mentor according to the learning effect.This model is designed to investigate the cooperative dynamics of the spatial prisoner's dilemma.More specifically,when the cumulative payoff of a learner is more than his reference earning,he will strengthen his interaction with his mentor;otherwise,he will reduce it.The experimental results indicate that this mechanism can improve the emergence of cooperation in a networked population and that the driving coefficient of interaction intensity plays an important role in promoting cooperation.Interestingly,under a certain social dilemma condition,there exists a minimal driving coefficient that leads to optimal cooperation.This occurs due to a positive feedback effect between the individual's satisfaction frequency and the number of effective neighbors.Moreover,we find that the experimental results are in accord with theoretical predictions obtained from an extension of the classical pair-approximation method.Our conclusions obtained by considering relationships with mentors can provide a new perspective for future investigations into the dynamics of evolutionary games within structured populations.
文摘目的系统评价中药复方石菖蒲制剂治疗癫痫的有效性及安全性。方法计算机检索Central(2012年11月)、Pub Med、OVID、Sciencedirect、CNKI和维普数据库中关于复方石菖蒲制剂治疗癫痫的随机和半随机对照试验,并手工检索相关杂志,追溯相关研究及纳入文献的参考文献。由2位评价者根据纳入和排除标准独立选择文献、提取资料和进行方法学质量评价,然后采用Rev Man 5.17软件进行Meta分析。结果共纳入6个RCT及q RCT。Meta分析结果显示,复方石菖蒲制剂在治疗癫痫的有效率、消除脑电图异常方面优于对照组(P<0.05),但治疗期间不良反应报道数据不足。结论现有证据显示,中药复方石菖蒲制剂治疗癫痫是有效的,在有效率方面可能相当或略优于传统抗癫痫西药苯巴比妥、苯妥英钠;并且在消除脑电图异常方面也是有效的;尽管所有研究均未报道有严重不良反应出现,但鉴于数据不足,对于复方石菖蒲制剂安全性目前尚不能给出结论性意见。
文摘本课题设计的数控系统可定制界面是以QT为平台,采用脚本程序定制界面的功能来实现。包括人机界面的设计与构建,QT界面加载器和脚本引擎的扩展,以及底层接口主程序的实现等;同时在QT图形组件类的基础上构建了数控系统专用的图形组件类库,是实现界面可定制性的基础。该方法充分利用了QT在GUI(Graphical User Interface,图形用户界面)设计方面的优势以及新增的支持脚本功能模块,使定制人机界面的过程变得简便快捷。
