检测机构对标准文献需求的特征及应对措施

标准文献有其明显特征,是标准化工作的一个重要组成部分,它是检测机构工作依据和工具。提出了标准文献管理要适应检测机构的特点,注重收集的有效性,保证质量管理体系的受控状态,利用现代检索工具及时掌握标准信息动态就显得十分重要。     

软件漏洞模糊测试的关键分支探索及热点更新算法

在软件开发及应用中,由于具有可复现性,模糊测试能够帮助发现漏洞和有针对性地对漏洞成因进行分析。为了解决模糊测试过程的效率及测试力度等问题,提出了软件漏洞模糊测试的关键分支探索及热点更新算法。该方法通过捕获、分析和利用受检程序在处理测试用例时的执行位置的关键信息,以指导模糊测试过程的探索方向和测试用例的生成。实验结果表明,提出的方法相较于传统随机发散的模糊测试方法在漏洞发现能力上有较大提升,在Otfcc、Swftools等14个开源程序中发现了100余个未被公布的漏洞,为模糊测试用于软件漏洞检测提供了新的可靠途径。     

微机控制的感应电动机特性测试系统

采用单片机作为下位机,PC机作为上位机,联合组成了感应电动机特性的微机测试系统。单片机对被测电量波形进行同步采样,对被测电机的运行状态进行控制。PC机控制单片机的运行,对测量数据进行快速处理,打印试验报告,绘制图形曲线,实现了测试过程的自动化。     

铁素体区轧制技术及应用于攀钢生产的可行性

讨论了铁素体区轧制技术的优势,特点及其在国内外生产厂家的应用现状,分析限铁素体区轧制工艺在攀钢实施的可行性。     

水压引信目标分类的研究

本文提出一种模糊统计分类 FSC 方法,用于研究水压引信目标分类问题。在建立水面目标场多级网络分类模型的基础上,分析讨论了此方法的特征提取、识别函数、模糊与冲突、搜索算法等技术问题,并通过仿真实验,对水面目标航速、吨位、横距进行分类处理,结果表明,FSC 方法行之有效。     

一个有界解的紧性

Ｊ．Ｄｉｅｕｄｏｎｎｅ在文［１］中证明了（１）～（３）存在唯一解，本文证明了（１）～（３）的任何有界解都有准紧值域．     

The role of coping in the relationship between perceived racism and racism-related stress for Asian Americans: Gender differences.

On the basis of stress and coping theory, the authors examined coping as a mediator of the relationship between perceptions of racism and racism-related stress with a sample of Asian American college students (N = 336). Results indicated that coping mediated the relationship between racism and racism-related stress differentially by gender. The more that men perceived racism, the more likely they were to use support-seeking coping strategies that were associated with higher levels of racism-related stress. The more that women perceived racism, the more they used active coping strategies that were associated with higher levels of racism-related stress. The findings demonstrate how coping with racism differs for Asian Americans on the basis of gender. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Research on theory and key technology of trusted computing platform security testing and evaluation

Trusted computing has become a new trend in the area of international information security, and the products of trusted computing platform begin to be used in application. Users will not use the products of information security, unless it goes through the testing and evaluation. Here we concentrate on the testing and evaluation problem of trusted computing platform, begin with constructing proper formalization model of trusted computing platform for testing, and establish a mathematical chain of trust model...     

压水堆核电厂堆外源量程探测器计数率分析

压水堆核电厂启动过程中,次级中子源为堆外源量程探测器提供本底计数率,避免测量盲区,确保反应堆安全启动。但次级中子源的引入会为核电厂带来较大的经济和环境负担,同时也需承受次级中子源破损等带来的风险。为此,可使用受辐照燃料组件的自发裂变中子源进行替代,即无源启动方式。通过研究堆外源量程探测器计数率的理论计算方法,并基于运行电厂测量数据进行分析验证,为源量程探测器计数率的理论预估提供了较为完善的理论方法流程。本文结果可为无源启动源量程探测器计数率分析提供支持,同时也可用于次级中子源装载量或布置位置的优化分析等。