智能化CAPP与PLM相结合在制造型企业中的应用研究

在制造企业中,产品更新换代的速率太快,实现工艺文件的标准化,规范产品制造信息和管理信息是企业发展的难题。本文分析了PLM与CAPP工艺设计的集成模式,介绍了系统工艺设计的主要特点以及功能,阐述了在制造企业中的应用和发展前景。     

用Fortran和Excel的联合方法绘制科技图线

科技中的数值计算和数值模拟,用Fortran编程获得数值结果有着突出的优点,Microsoft Excel在按数据绘制图线方面有着丰富的功能.将两者联合高效地获得了图示结果,是一种值得重视的方法.尤其在按一份数据文件绘制几张图,每张图又有几条曲线时,此法的简捷性尤为突出.对此,阐明了一些有效的建议,并给出了无处可微连续函数的图示结果.     

3D facial motion tracking by combining online appearance model and cylinder head model in particle filtering

A 3D facial motion tracking approach has been proposed based on the incorporation of online appearance model(OAM)and cylinder head model(CHM)in the framework of particle filtering.1)For the construction of OAM,multi-measurements are infused to reduce the influence of lighting and person dependence.2)The global motion acquired from CHM fitting is set as the initialization of OAM fitting,and the fitting result is set as the initialization of CHM in the next frame.3)Motion filtering is applied with particle filter combined with local optimization and improved resampling.Objective between subjects evaluations show that our approach is fit to track facial motions.