安全情报失误致因模型研究     

王秉  王渊洁 《情报理论与实践》2021,44(1):36-41

[目的/意义]安全情报是安全管理必不可少的支撑,安全情报失误往往是导致安全管理失败的重要原因。因此,安全情报失误致因研究具有重要意义。[方法/过程]首先,提出安全情报失误的定义,并详述其内涵。其次,运用"物理—事理—人理"系统方法论,分析安全情报失误产生的原因。在此基础上,根据安全情报流程,构建安全情报失误致因模型。最后,扼要分析安全情报失误规避策略。[结果/结论]研究表明,安全情报失误主要由安全情报自身、安全情报环境和安全情报人员三方面原因造成,其产生节点包括安全情报生产、安全情报传递及安全情报应用三个阶段。安全情报失误规避应从适应安全情报属性、改善安全情报环境和理解安全情报人员三方面着手。  相似文献   

基于动态分阶势场法的船舶自动避碰系统     

罗贤程  尹建川  李宏宾 《上海海事大学学报》2020,41(1):1-7

为使船舶在多船避让环境下适应航行环境的变化并自动复航,提出基于动态分阶势场法的船舶自动避碰系统。该系统基于动态势场避障规划算法,利用模糊综合评价法量化船舶碰撞危险度;依据《国际海上避碰规则》确定本船在不同会遇局面下的避让行动,并据此对斥力势函数进行调整。该系统将本船的避碰过程划分为航迹保持、避让和复航3个阶段,根据不同阶段的要求构建动态分阶势场;利用动态分阶势场法对船舶的航行环境进行建模,进而生成恰当的航向指令;利用自动舵产生舵角指令控制船舶完成避让、复航和航迹保持。仿真结果表明:该自动避碰系统可以引导船舶完成既定的避让行动,并能使船舶在安全会遇距离上驶过;该系统可以适应航行环境的变化,且具备航迹保持能力。  相似文献   

云计算安全服务研究     

户晓艳 《晋城职业技术学院学报》2013,6(4):76-78

为了推动云计算应用发展,加强云安全建设,从云基础设施服务、云环境可信控制、云传输安全管理、云安全应用服务等方面分析云安全服务所面临的诸多问题,提出构建云安全一体化防护、云环境可信平台、可信链传递平台、云安全管理防御等安全体系,才能真正化解云计算应用中多变的安全隐患,从而为IT领域与信息安全领域提供服务。  相似文献   

足球德比文化研究          下载免费PDF全文

徐冬立 《河北体育学院学报》2019,33(6):21-25

运用文献资料法和专家访谈法,对足球德比文化的现象与内涵、形成因素及其特征、形成的理论解释进行了研究。指出,德比现象与内涵都随社会变化得到延展,现象上从最初的地理对抗向文化领域甚至更大范围扩展,内涵上对德比的概念界定从客观条件向主观条件延伸。认为,群体间的冲突、同侪、偏见对德比的形成和延续有显著作用,显示出德比的形成因素具有竞争性、相似性、差异性三方面的特征。“争议密度”和“竞争对手威胁论”是用来解释德比形成原因的两大理论,经过比较分析,认为竞争对手威胁论可以更为清晰地解释德比的形成与延续的内涵,克服了以往研究的局限性。对于我国足球而言,探究足球德比文化具有重要现实意义,通过借鉴西方的成熟经验培育具有中国特色的足球文化,亦有助于我国足球“三步走”战略目标的实现。  相似文献   

Trait Affection Given and Received: A Test of Hofstede’s Theoretical Framework     

Daniel H. Mansson  Aldís G. Sigurðardóttir 《Journal of Intercultural Communication Research》2017,46(2):161-172

This study sought to address Hofstede and McCrae’s (2004) call for systematic cross-cultural comparisons of trait-like attributes. Specifically, we examined the extent to which Danish, Icelandic, Polish, and American adults’ trait affection given and trait affection received are (a) dependent on national origin, and (b) associated with Hofstede’s dimensions of cultures (i.e. individualism-collectivism, masculinity-femininity, power distance, and uncertainty avoidance). The participants (N = 606) completed a questionnaire in English that consisted of the trait affection given and trait affection received scales. Results of a multivariate analysis of variance and linear regression analyses revealed that people’s trait affection given and received are (a) dependent on national origin, and (b) associated with Hofstede’s dimensions of cultures.  相似文献   

How does education have an impact on ethnocentrism? A structural equation analysis of cognitive,occupational status and network mechanisms     

Cecil Meeusen  Thomas de Vroome  Marc Hooghe 《Int J Intercult Relat》2013

Previous studies have distinguished cognitive, occupational status and network mechanisms in the relation between education and ethnocentrism. Hypotheses on these mediating mechanisms are derived from socialization theory, realistic group threat and contact theory. In the current study we use structural equation modeling to investigate the explanatory power of these three mechanisms simultaneously. The analysis is based on a representative population survey from the Netherlands (NELLS 2009, n = 1910). The results show that more than half of the initial association between education and ethnocentrism can be attributed to cognitive ability and occupational status mechanisms. The remaining part of the overall association, however, still has to be modeled as a direct relationship between education and ethnocentrism. This direct association can be attributed either to social desirability or to a direct liberalizing effect of education on social and political attitudes. Our analysis tentatively suggests that the rise of average education levels in Western societies might lead to less ethnocentric attitudes via the cognitive sophistication mechanism.  相似文献   

Authoritarianism, perceived threat and exclusionism on the eve of the Disengagement: Evidence from Gaza   总被引：1，自引：0，他引：1  

Canetti D  Halperin E  Hobfoll SE  Shapira O  Hirsch-Hoefler S 《Int J Intercult Relat》2009,33(6):463-474

Major political events such as terrorist attacks and forced relocation of citizens may have an immediate effect on attitudes towards ethnic minorities associated with these events. The psychological process that leads to political exclusionism of minority groups was examined using a field study among Israeli settlers in Gaza days prior to the Disengagement Plan adopted by the Israeli government on June 6, 2004 and enacted in August 2005. Lending credence to integrated threat theory and to theory on authoritarianism, our analyses show that the positive effect of religiosity on political exclusionism results from the two-staged mediation of authoritarianism and perceived threat. We conclude that religiosity fosters authoritarianism, which in turn tends to move people towards exclusionism both directly and through the mediation of perceived threat.  相似文献   

论 VHF 通信与船舶避碰     

张秋荣 《上海海事大学学报》1998,(3)

ＶＨＦ作为一种通讯工具在避碰中的应用越来越被航海人员所重视。如果使用得当,可作为协助避碰的一种有效手段,但对于ＶＨＦ通信与避碰规则之间的关系,不少驾驶员认识不足,过于强调ＶＨＦ的作用而疏忽了对规则的遵守,导致碰撞事故频频发生。本文通过一系列的相关案例分析,提出正确使用ＶＨＦ协助避碰的措施。  相似文献   

APF方法在船舶自动避碰中的应用     

张鸣鸣  施朝健 《上海海事大学学报》2007,28(1):126-131

提出一种改进的人工势场(Artificial Potential Field,APF)方法,将船舶的速度和操纵特性引入到模型的引力和斥力函数中,用于实现船舶自动避碰.讨论APF中的局部最小点问题,并提出解决方法.  相似文献   

体育锻炼与疲劳关系的综述研究     

吴本连  郭华生 《安徽体育科技》2004,25(2):78-80

通过文献综述法简要地总结了疲劳的概念、研究历史及现状,介绍了疲劳的机理研究,探讨了体育锻炼与疲劳的关系及疲劳的判断、消除等.研究结果表明:(1)目前,有关体育锻炼的生理疲劳的研究相当系统、全面;但体育锻炼的心理疲劳的研究相当薄弱、少见;(2)体育锻炼的心理疲劳并非生理疲劳的必然结果,而受个人心理因素以及个体周围环境的影响等等;(3)随着心理健康的日渐重要,未来有关心理疲劳的研究将倍受重视.  相似文献