基于虚拟仪器的航空电子设备检测系统设计

设计了一种基于虚拟仪器技术的航空电子设备自动化检测系统。详细介绍了系统软硬件的结构和功能。说明了通过程序、配置文件管理系统硬件,实现软件的仪器无关性的方法。并讨论了用数据库和文本文件定义被测设备的数学模型,从而实现检测系统与被测设备分离的方法。由于从检测系统和被测设备两方面实现了检测的通用性,对检测系统的升级换代和扩展检测新型机载设备具有重要意义。     

一种新的火炮武器系统射击精度试验方法

射击精度是反应火炮武器系统性能的最重要技术指标,通过对以往射击精度试验中采用的建立在大子样统计理论基础上的传统评定方法进行了分析,对目前采用的序贯截尾原理和方法进行阐述,并指出前两种方法没有利用验前信息,试验次数和试验风险比较大等缺点,由此提出一种新的贝叶斯截尾序贯检验法。这种小样本统计推断方法的基本思想是充分利用已有的验前信息,实现了多阶段试验信息的综合利用,能够减少试验次数,缩短试验周期,节约试验经费。     

军用嵌入式软件结构覆盖测试技术

基于军用实时嵌入式软件的测试经验,针对实时嵌入式软件特点,研究了各种平台软件尤其是嵌入式强实时软件的插装策略,分析了写文件、写内存、按位记录特征值、使用硬件的插装方式的优缺点。提出了有效的结构覆盖测试技术和测试方法。对实时嵌入式软件的测试,具有实际参考价值。     

嵌入式实时操作系统性能测试方法

为综合评价操作系统能否满足使用要求,研究了一种定量测试嵌入式实时操作系统功能和性能的方法,提出了具体的测试项目、测试环境和测试用例的要点,给出一种基于外部注入的功能测试、性能测试、应用测试方法及具体实现。测试结果证明,该方法对提高软件质量,缩短研制周期,增强可维护性等方面有显著效果。     

Determination of burn‐in parameters and residual life for highly reliable products

Today, many products are designed and manufactured to function for a long period of time before they fail. Determining product reliability is a great challenge to manufacturers of highly reliable products with only a relatively short period of time available for internal life testing. In particular, it may be difficult to determine optimal burn‐in parameters and characterize the residual life distribution. A promising alternative is to use data on a quality characteristic (QC) whose degradation over time can be related to product failure. Typically, product failure corresponds to the first passage time of the degradation path beyond a critical value. If degradation paths can be modeled properly, one can predict failure time and determine the life distribution without actually observing failures. In this paper, we first use a Wiener process to describe the continuous degradation path of the quality characteristic of the product. A Wiener process allows nonconstant variance and nonzero correlation among data collected at different time points. We propose a decision rule for classifying a unit as normal or weak, and give an economic model for determining the optimal termination time and other parameters of a burn‐in test. Next, we propose a method for assessing the product's lifetime distribution of the passed units. The proposed methodologies are all based only on the product's initial observed degradation data. Finally, an example of an electronic product, namely contact image scanner (CIS), is used to illustrate the proposed procedure. © 2002 Wiley Periodicals, Inc. Naval Research Logistics, 2003     

A general model of heterogeneous system lifetimes and conditions for system burn‐in

Burn‐in is a technique to enhance reliability by eliminating weak items from a population of items having heterogeneous lifetimes. System burn‐in can improve system reliability, but the conditions for system burn‐in to be performed after component burn‐in remain a little understood mathematical challenge. To derive such conditions, we first introduce a general model of heterogeneous system lifetimes, in which the component burn‐in information and assembly problems are related to the prediction of system burn‐in. Many existing system burn‐in models become special cases and two important results are identified. First, heterogeneous system lifetimes can be understood naturally as a consequence of heterogeneous component lifetimes and heterogeneous assembly quality. Second, system burn‐in is effective if assembly quality variation in the components and connections which are arranged in series is greater than a threshold, where the threshold depends on the system structure and component failure rates. © 2003 Wiley Periodicals, Inc. Naval Research Logistics 50: 364–380, 2003.     

增强党的阶级基础和扩大党的群众基础的哲学思考

增强党的阶级基础和扩大党的群众基础 ,是党的十六大对全党提出的根本要求。应站在哲学的高度 ,从党的阶级基础和群众基础的辩证关系、理论与实践的具体历史统一以及党的历史经验的角度 ,理解它的精神实质。     

以十六大精神为指导 努力提高人才培养质量

全面建设小康社会需要“造就数以亿计的高素质劳动者、数以千万计的专门人才和一大批拔尖创新人才”。要实现这一宏伟目标 ,就必须全面推进素质教育 ,努力提高人才培养质量 ,这是历史赋予高等教育的重任。武警学院作为公安现役部队的最高学府 ,目前的中心工作是用十六大精神统一思想 ,进一步转变教育观念 ,深化教学改革 ,大力加强师资队伍建设 ,为部队培养高素质人才     

浅论军事行政法从严原则

军事行政法从严原则应当成为军事行政法的一项基本原则。其基本涵义是军事行政法的制定具有严密性 ,军事行政法的实施具有严格性 ,军事行政法律制裁具有严厉性。该原则是军队质量建设的规律之一 ,是维护国防利益和军事利益的内在要求。军事行政法中的很多具体规定均体现了该原则     

城镇化——破解“三农”难题的关系

当前我国存在的农业、农村和农民问题与城镇化滞后有着密切的关系。解决“三农”问题 ,全面建设小康社会 ,必须统筹城乡经济社会发展 ,积极推进城镇化进程。