关于非齐次马多链的Cesaro平均收敛性

首先证明了齐次马氏链一个Ｃｅｓａｒｏ平均收敛定理，它是Ｂｏｗｅｒｍａｎ等人的一个结果的推广，本文利用这个收敛定理给出非齐次马氏链一元泛函的一个极限定理，并讨论了这个极限定理在马氏决策过程和信息论中的应用。     

蛋白质分子链的超声速孤立子

在Ｄａｖｙｄｏｖ简谐蛋白质分子链模型的基础上，进行合理的连续近似处理，得到了超声速和亚声速孤立子解，并求得孤立子能量．     

平面尺寸链分析计算夹具工艺孔位置

本文介绍了用面平尺寸链分析计算夹具工艺孔位置尺寸的方法。     

Markov不等式与H(?)lder不等式的差异性

通过对(李亚普诺夫)不等式的证明,论证了Markov不等式及Holder不等式的差异性,同时讨论了2个不等式的适应范围。     

基于平面直线图链的单调完全集的研究

计算几何中的链方法是平面剖分中一点定位的好方法，本文讨论了从任何平面直线图红正则化手续，进而构造链的单调完全集的方法和过程，这是用链方法进行一点定位的必要准备。     

Transit smart card data mining for passenger origin information extraction

The automated fare collection(AFC) system,also known as the transit smart card(SC) system,has gained more and more popularity among transit agencies worldwide.Compared with the conventional manual fare collection system,an AFC system has its inherent advantages in low labor cost and high efficiency for fare collection and transaction data archival.Although it is possible to collect highly valuable data from transit SC transactions,substantial efforts and methodologies are needed for extracting such data because most AFC systems are not initially designed for data collection.This is true especially for the Beijing AFC system,where a passenger’s boarding stop(origin) on a flat-rate bus is not recorded on the check-in scan.To extract passengers’ origin data from recorded SC transaction information,a Markov chain based Bayesian decision tree algorithm is developed in this study.Using the time invariance property of the Markov chain,the algorithm is further optimized and simplified to have a linear computational complexity.This algorithm is verified with transit vehicles equipped with global positioning system(GPS) data loggers.Our verification results demonstrated that the proposed algorithm is effective in extracting transit passengers’ origin information from SC transactions with a relatively high accuracy.Such transit origin data are highly valuable for transit system planning and route optimization.     

电商支付公司Ribbon使全平台购买支付更为简便

去繁化简是人的永恒追求,简便是归真,融合即大同,全平台的极简支付一定是未来的支付主流。Ribbon位于旧金山,由Hany Rashwan和James Elkins创办。其理念和目标是:让数字支付更便利,且不受使用平台的限制,去跳转化,让所有电子支付都能仅在有商品链接的任何平台内即可完成。     

弹链粉末涂装可行性探讨

通过炮用弹链粉末静电喷涂工艺试验,验证了弹链粉末涂装的可行性。粉末涂装工艺能够提高炮用弹链的防蚀性,简化工序。