Real-time three-dimensional infrared imaging using fringe projection profilometry

Infrared thermography determines the surface temperature of an object or human body. It is a promising imaging technology for medical and biological observations due to its contactless and completely non- invasive properties. However, traditional two-dimensional （2D） infrared thermography cannot retain the spatial information, and thus provides only qualitative diagnosis information. A novel real-time three- dimensional （3D） infrared imaging system which takes full advantages of high-speed, high-quality, high- sensitivity, and low-cost in 3D thermograph is presented. We demonstrate the real-time 3D thermal imaging at the speed of 24 frmnes per second （fps）, with resolution of 640 ×480 points. Experimental results demonstrate quantitatively measurement of temperature distribution of 3D surfaces in real-time is realized with this system.     

BP神经网络优化网络科技文献共享评价体系

以网络科技文献共享的评价为对象,构建初选指标结构,对指标体系优化的主流评价方法进行研究及综述,在分析了各个评价方法的优劣的基础上确定运用BP神经网络的方法对初选的指标体系进行优化。然后基于BP神经网络对指标体系进行优化的方法及过程进行了论述。最后利用BP神经网络方法求取各项指标的权重,分析各个指标在整个指标体系中的重要程度,修改初选指标体系,进而达到优化的目的。     

不同运动方式对哮喘患儿肺功能影响的网状Meta分析

[目的]通过网状Mate分析法比较呼吸训练、耐力训练、综合训练、其他训练对哮喘患儿肺功能的干预效果.[方法]计算机检索国内外有关运动对哮喘患儿肺功能影响的随机对照试验.采用Revman 5.3和Stata 16软件进行统计学分析.[结果]共纳入34项RCT,涉及研究总样本量2 560人.分析结果显示：在改善哮喘患儿肺功能方面，呼吸训练、耐力训练、综合训练、其他训练均优于对照组.亚组分析结果显示：哮喘患儿短期内(<12周)的肺功能改善更显著.[结论]呼吸训练和耐力训练(<12周)是改善哮喘患儿肺功能的最佳运动方式和干预周期.