平面电磁波在磁化分层不均匀等离子体圆柱上的散射研究

作者用两点边值问题的方法,计算了垂直入射的平面电磁波在磁化分层不均匀等离子体圆柱上的散射,给出了所需的统治方程和边界条件,得到了数值结果.     

Vibrating Liquefaction Experiment and Mechanism Study in Saturated Granular Media

1IntroductionLiquefactionof saturatedgranules(e.g.brokenrocks,sandy soils and tailings,etc)is aphenomenon that granules show similar liquidcharacter and lose carrying capacity completelyunderthe actionof dynamical load[1-5].There aresome behaviors about liquefaction,such as theeruption of water and sands fromthe ground,theinstability of foundation,the large area landslip,the building falling by vibration,etc.Theproblemof liquefactionis aremarkable questioningeotechnical engineering.In the past…     

用Matlab获得氢原子的电子云图像

介绍了利用Matlab语言编程讨论氢原子中电子径向分布规律、电子在氢原子中的分布几率等。     

普济河立交桥现浇钢筋混凝土连续箱梁的施工

介绍天津普济河道立交桥现浇钢筋混凝土连续箱梁的施工工艺、施工方法及实施效果。     

悬臂法连续刚构桥0号梁施工的控制

结合炭窑沟大桥的施工及监控实践,重点介绍了悬臂法浇筑的连续刚构桥中0号梁段施工的技术方法,为今后的连续刚构桥的施工起一些借鉴作用。     

金属零件表面波纹度的测试研究

用非接触式传感器,对圆柱形金属零件进行实时测定。提出一种测试模型,並对数据处理作了解析,为波纹度误差的测量提供了一个新的方法。     

A bayesian approach to modelling stochastic cycles

This article deals with a fully Bayesian approach to describe the cyclical behaviour of a univariate time series. A damped sine wave where both the period and the damping factor are time varying is assumed as the underlying mathematical model for the cyclical component. The model is applied to two real data sets; the annual rainfall observations in Fortaleza, Brazil, and the annual Wolf sunspot numbers.     

水平连铸机的拉坯力矩

介绍了水平连铸机拉坯力矩的测试方法,以及各种不同工艺条件下的试验结果,并提出了计算拉坯力矩的方法,二者所得结果是一致的。     

正方形上的Lipschitz连续函数的Bernstein多项式的Lipschitz常数

定义在正方形上的Lipschitz连续函数的Bernstein多项式仍是Lipschitz函数,且Lipschitz常数不变。