Two novel critical shock models based on Markov renewal processes

In this paper, we investigate systems subject to random shocks that are classified into critical and noncritical categories, and develop two novel critical shock models. Classical extreme shock models and run shock models are special cases of our developed models. The system fails when the total number of critical shocks reaches a predetermined threshold, or when the system stays in an environment that induces critical shocks for a preset threshold time, corresponding to failure mechanisms of the developed two critical shock models respectively. Markov renewal processes are employed to capture the magnitude and interarrival time dependency of environment-induced shocks. Explicit formulas for systems under the two critical shock models are derived, including the reliability function, the mean time to failure and so on. Furthermore, the two critical shock models are extended to the random threshold case and the integrated case where formulas of the reliability indexes of the systems are provided. Finally, a case study of a lithium-ion battery system is conducted to illustrate the proposed models and the obtained results.     

加强建筑消防设计审核工作之思考

结合自己的工作实践 ,分析建筑消防设计审核工作的重要性 ,并对如何加强建筑消防设计审核工作提出了看法。     

公元四百零三年——论陶渊明的归隐

陶渊明是中国诗歌史上最伟大的诗人之一,他在公元403年所作的诗,占了其一生诗作的六分之一强,表达了其归隐的强烈欲望,结合陶渊明一生的主要经历,便可知其归隐的主要原因乃是晋室情结,而他决定归隐的年份即此年.     

“越肩发射”火控技术研究

讨论了“越肩发射”火控原理及其意义。提出“越肩发射”火控的复合制导过程。通过进行数字仿真及分析,进一步说明“越肩发射”火控技术对未来空战的深刻影响。     

编队舰空导弹对空拦截综合模型研究

以水面舰艇编队防空为背景,用数学分析法和计算机模拟法对编队防空中预警直升机的配置和探测模型、舰载雷达的探测模型、编队对空导弹的抗击方法、编队对目标的射击能力、转火能力、杀伤概率等问题进行了研究,建立了火力方程等有关数学模型,为定量分析和优化编队对目标的作战能力提供了依据。     

国外战储法规建设及启示

为贯彻落实依法治军、依法治储要求,推动战备物资储备工作法治化,提高我军战备物资储备法规体系建设的科学化水平,本文探讨了加强战备物资储备法规体系建设的必要性,深入分析了美国、日本、俄罗斯战储法规制度建设情况以及立法特点、实践经验。结合我军战储建设实际,借鉴他国的立法思路,在法规体系建设上提出基于立法规划、法规制订、立法研究、立法队伍建设等方面的措施建议,对建立适应我军新的编制体制和战储建设实际的法规制度具有重要作用。     

How might Democratisation Affect Military Professionalism in Africa? Reviewing the Literature

The search continues for methods to improve security for development in Sub-Saharan Africa. One of the important actors in this security arena is Sub-Saharan African governments’ armies. Much of their capability to meet security challenge depends on how militarily professional they are. The wave of democratic evolution in Africa since 1990 also affected military professionalism. This article reviews three models for assessing how democratisation might affect military professionalism in Sub-Saharan Africa, with special attention to post-conflict states. This should make it possible to decide which analytical methods are most appropriate to measure military professionalism in the particular circumstances of Sub-Saharan African post-conflict democratisation. Depending upon the particular nation-state in question, this decision on analytical methods may be useful for other Sub-Saharan states as well.     

Noncognitive skills and job match: evidence from military applicants

The study examines the effect of noncognitive skills on early career choices among young job seekers. Specifically, we analyze the influence of personality traits on the decision by military applicants either to choose the military or a civilian career option. We use a unique micro-level data-set of applicants to the US Navy and exploit the fact that many individuals who initially apply for military jobs eventually choose civilian careers instead. In this institutional setting, job candidates use new information to update their beliefs about the military job match. Personality traits are viewed as productive abilities that influence applicants’ expectations about the economic return to the job and occupational training offered by the Navy. The study finds that many of the 15 lower order personality facets associated with the Big Five traits are predictive of applicants’ job choices and provides suggestive evidence of a link between personality traits, job match expectations, and career choice.