桩基施工中的坍孔原因与预防措施

对在一般河流上钻(冲)孔过程中出现坍孔原因进行分析,并提出了坍孔预防措施.     

铁路产品认证的一致性检查和检验

介绍铁路产品认证一致性的要求及涉及范围，阐述铁路产品认证的一致性检查和检验的范围及方法。     

刚果（布）北部地区土基回弹模量E0研究

结合刚果（布）2号公路工程的现场承载板试验和贝克曼梁弯沉试验研究了压实度、稠度、弯沉值与土基回弹模量E0的变化规律,得出了土基回弹模量E0与稠度和压实度、土基回弹模量E0与弯沉的经验关系式,并将现场实测的土基回弹模量值与查表法得出的值进行了对比,在此基础上,提出了刚果（布）北部地区的土基回弹模量E0推荐值。     

Strong Completeness of Medium Logic System

The strong completeness of medium logic system is discussed. The following results are proved： medium propositional logic system MP and its extension MP^＊ are strong complete; medium predicate logic system MF and its extensions （MF^＊ and ME^＊ ） are not strong complete; and generally, ff a consistent formal system is not strong complete, then any consistent extensions of this forreal system are not strong complete either.     

基于改进DBSCAN的异常电池识别

单体电池间的性能差异是影响动力电池组使用安全性的主要因素之一,为识别电池组中一致性差的电池,即更容易发生危险的异常电池。文章在常规DBSCAN算法的基础上进行改进,针对其对输入参数敏感的缺陷,提出一种基于数据分布特性自适应确定MinPts参数和Eps参数的改进DBSCAN算法。将改进DBSCAN算法用于电池一致性分析,并利用电池充放电数据设计相关实验进行验证,验证结果表明所提出的算法异常电池识别效果良好。     

Consistent formulation of network equilibrium with stochastic flows

Traffic flows in real-life transportation systems vary on a daily basis. According to traffic flow theory, such variability should induce a similar variability in travel times, but this “internal consistency” is generally not captured by existing network equilibrium models. We present an internally-consistent network equilibrium approach, which considers two potential sources of flow variability: (i) daily variation in route choice and (ii) daily variation in origin–destination demand. We particularly aspire to a flexible formulation that permits alternative statistical assumptions, which allows the best fit to be made to observed variability data in particular applications. Joint probability distributions of route—and therefore link—flows are derived under several assumptions concerning stochastic driver behavior. A stochastic network equilibrium model with stochastic demands and route choices is formulated as a fixed point problem. We explore limiting cases which allow an equivalent convex optimization problem to be defined, and finally apply this method to a real-life network of Kanazawa City, Japan.     

陕西关中地区土基回弹模量研究

结合试验段的现场试验和室内试验,从土基回弹模量值的常用确定方法对陕西关中地区的土基回弹模量取值加以分析,求得土基回弹模量与稠度和压实度相应的关系以及回弹模量与贝克曼梁弯沉值相关关系,在此基础上提出公路二级区划Ⅲ4区粘性土的土基回弹模量推荐值;给出陕西关中地区回弹弯沉检测标准的经验公式。     

沥青混凝土搅拌设备粉尘排放试验研究

首先分析对比了应用于检测沥青混凝土搅拌设备粉尘排放的两种方法—预测流速法和压力平衡法,然后着重讨论压力平衡法的测量原理,并通过两个实例加以对比说明。     

碾压混凝土的配制和稠度的动态控制

分析了影响碾压混凝土路面施工质量的因素，论述了从碾压混凝土原材料的选择、配合比的确定、混凝土料的拌和、运输到碾压混凝土路面的摊铺整个过程中混凝土的配制和稠度的测量及进行动态控制的方法。     

基于Paxos算法的ATS数据分布式存储模型

在对ATS系统关键性数据存储问题进行分析的基础上,以数据的可靠性和完备性为目标,提出了一种基于Paxos算法的ATS数据分布式存储模型,并对模型的运行机制进行了论述。该模型已在ATS仿真系统中得到了应用,并取得了良好的效果。