产品验收试验中参数的Bayes序贯估计

论述了产品验收试验中参数θ的Bayes序贯估计.首先基于序贯检验确定了θ的较小的范围,在这个范围内运用Bayes方法求θ的估计.     

A Fault Detection Mechanism in Erasure-Code Byzantine Fault-Tolerance Quorum

Fault-tolerance is increasingly significant for large-scale storage systems in which Byzantine failure of storage nodes may happen. Traditional Byzantine Quorum systems that tolerate Byzantine failures by using replication have two main limitations： low space-efficiency and static quorum variables. We propose an Erasure-code Byzantine Fault-tolerance Quorum that can provide high reliability with far lower storage overhead than replication by adopting erasure code as redundancy scheme. Through read/write operations of clients and diagnose operation of supervisor, our Quorum system can detect Byzantine nodes, and dynamically adjust system size and fault threshold. Simulation results show that our method improves performance for the Quorum with relatively small quorums.     

高压下CO2异丙醚体系的汽液相平衡

采用带有可视石英玻璃窗的高压汽液相平衡装置，测定了压力0.5～25MPa、温度265.15～333.15K条件下CO₂异丙醚体系的二元汽液相平衡数据，并通过了热力学一致性检验。用Peng-Robinson(PR)状态方程对CO₂-异丙醚体系的汽液相平衡数据进行关联，得到该方程的二元交互作用参数。结果表明，体系的汽液相平衡数据计算值与实验值偏差较小，可采用PR方程对CO₂-异丙醚二组分物系的汽液相平衡数据进行预测。     

指数分布下的产品可靠性抽样检验

对于失效时间遵从指数分布,本文提出了定时截尾样本下可靠性抽样检验方案的统计方法.质量统计是不可靠度的矩估计的严格增加函数,利用渐近正态分布样本量和接受常数被近似确定.     

Avoiding obstacles by using a proximity infrared sensor skin

Placement and wiring of vast amount of sensor elements on the 3-dimensionally configured robot surface to form soft sensor skin is very difficult with the traditional technology. In this paper we propose a new method to realize such a skin. By implanting infrared sensors array in an elastic body, we obtain an elastic and tough sensor skin that can be shaped freely. The developed sensor skin is a large-area, flexible array of infrared sensors with data processing capabilities. Depending on the skin electronics, it endows its carrier with an ability to sense its surroundings. The structure, the method of infrared sensor signal processing, and basic experiments of sensor skin are presented. The validity of the infrared sensor skin is investigated by preliminary obstacle avoidance trial.     

大学生考试成绩的模糊综合评价

从学生考试成绩排名的问题出发,运用模糊聚类分析与模糊综合评价的方法,以Excel和Matlab软件为辅助工具对学生成绩进行处理,按各科成绩对每位学生进行综合排名.结果表明聚类的结果与模糊综合评价的排名基本一致.这一结果从一定程度上反映学生各自的实际情况,做到了符合社会发展需求的有效排名.     

从桥涵台背顶跳车浅谈台背回填

文章介绍了桥、涵台背顶跳车形成的原因,重点是对造成跳车的关键环节——台背回填的处理进行分析,包括台背回填的填筑范围、基础处理、材料要求、施工工艺、质量控制、检验标准等几个方面。     

谈如何做好机动车外观地沟检验工作

在多年检测实践的基础上,笔者对汽车外检工作进行了总结、整理,就汽车外检工作的重要性及怎样做好该项工作进行了分析。     

地磅销售智能卡网络管理系统

针对单机版的地磅销售系统已不再适用多磅联合销售的状况,开发了网络版地磅销售系统,引进现代化的智能红外线车辆监控报警系统,应用计算机网络技术、IC卡刷卡技术、红外线扫描技术、起落杆控制技术,实现了对出入门口的车辆的监控,不仅有效利用地磅销售资源,而且防止了过去大量丢失煤炭的现象,保证了企业的经济效益。     

横山县动物检疫监督检验站

横山县动物检疫监督站成立于2000年,隶属于县畜牧局,正科级事业执法单位。单位主要职能是承担全县动物及动物产品的检疫检验以及动物疫情的监测消毒等工作。单位现有职工12名,大专以上文化程度8名,中专4名,具有中级职称4名,初级职称6名。单位成立以来,严格按照《动物检疫法》及相关的法规开展工作。该站根据实际情况总结出“工作是根本，制度是保障，规范是生命”的工作理念和“业务精通、