爱民固边的战略思维论要

爱民固边战略是＂十一五＂时期公安边防部队在建设社会主义和谐社会中的一项重大战略部署。＂十二五＂时期,形势任务更加严峻,必须进一步找准爱民固边是促进边境经济社会发展的新型人民战争的战略定位,完善以战略目的、战略原则、战略力量、战略措施为主要内容的战略架构体系,有效探索＂爱民—固边—发展—固边—利民＂的战略路线图,突出＂维稳主导、服务民生、强基固本、多元联动＂等战略重点,坚持＂并轨发展、标本兼治、无缝对接＂基本战略路径,使爱民固边战略更加系统化、规范化,纵深推进,打造公安边防特有品牌,不断产生更大的政治社会价值。     

有初始间隙弹性摩擦接触问题的罚有限元法

针对三维有初始间隙带摩擦的弹性接触问题,提出了一种新的迭代求解方法——罚有限元法。根据接触问题局部非线性的特点,将接触区域的法向非嵌入条件及切向连续性条件作为罚因子引入系统的总势能泛函中,由最小势能原理,得出了求解有初始间隙带摩擦弹性接触问题的罚有限元公式系统。最后通过两个数值算例验证方法的正确性和有效性。     

二次型极小化问题带误差的迭代算法

证明了二次型极小化问题带误差的迭代算法的有效性,所得结果推广了关于二次型极小化问题迭代的收敛性。     

子母深弹反鱼雷攻击效能及仿真

火箭深弹是水面舰艇拦截鱼雷的常用武器,为提高火箭深弹拦截鱼雷的概率,提出了子母深弹的概念,将地面火炮中常用的子母弹技术应用于深弹反鱼雷攻击中,通过分析子母弹的散布特性,来比较子母深弹和火箭深弹毁伤鱼雷的效能,并通过Monte-Carlo法仿真了这一过程,分析了影响子母深弹的毁伤概率的因素。     

《西湖二集》叙事品格的生成

从作者经历、社会情况、小说史发展状况三个方面论述《西湖二集》地域性色彩、讽刺色彩及“好颂帝德”等叙事品格的生成原因,深化了小说文本研究。     

全反射棱镜式激光陀螺应力检测技术研究

光学元件的装配应力和加工应力是制约高精度激光陀螺稳定工作的重要因素．考虑各向同性材料在应力作用下介电常量变化的情况,利用弹光效应和琼斯矩阵得到了复杂应力与穿过全反射棱镜的激光束偏振态改变之间的关系．通过实验,提出一种通过记录棱镜布儒斯特角反射光椭偏度配合光斑质量分析应力水平的筛选方法,对棱镜式激光陀螺装配过程中光学元件应力的早期筛查有突出作用,并设计专用工装以适应棱镜相关产品的应力检测需要．     

The stability of the nuclear nonproliferation norm: a critique of norm-contestation theory

This article argues that the nuclear nonproliferation norm (NNPN) is a social fact with a relatively independent life of its own and that it has a powerful impact on the behavior of both nuclear-weapon states (NWS) and non-nuclear-weapon states (NNWS). It challenges the application of critical constructivist research on norms to the NNPN and the idea that its legitimacy and structural power depend on contestation “all the way down.” State and non-state actors play an important role in explaining the dynamics of the NNPN, but agential constructivism runs the danger of “throwing the baby out with the bath water,” neglecting the structural impact of the NNPN on state behavior. The article examines the limitations of norm-contestation theory, arguing that some norms are more resistant to contestation than others. The NNPN is more difficult to contest than new norms (such as the Responsibility to Protect) because it is rooted in fifty years of nonproliferation nuclear diplomacy. The US-India nuclear deal is not a case of “norm change” but a violation of the NNPN. The “core” of the NNPN has not changed since the US-India nuclear deal. The conflict confronting NWS and NNWS is about the implementation of “type 2” norms (organizing principles) and “type 3” norms (standardized procedures), and not about the “hard core” of the NNPN.     

Stage life testing

In progressive censoring, items are removed at certain times during the life test. Commonly, it is assumed that the removed items are used for further testing. In order to take into account information about these additional testing in inferential procedures, we propose a two‐step model of stage life testing with one fixed stage‐change time which incorporates information about both the removed items (further tested under different conditions) and those remaining in the current life test. We show that some marginal distributions in our model correspond either to progressive censoring with a fixed censoring time or to a simple‐step stress model. Furthermore, assuming a cumulative exposure model, we establish exact inferential results for the distribution parameters when the lifetimes are exponentially distributed. An extension to Weibull distributed lifetimes is also discussed.     

磁流体动力学控制二维扩压器流场数值模拟研究

对常规扩压器进行了简介并作机理分析.用小磁雷诺数假设下基于Favre质量平均的全Navier-Stokes方程来求解外加电磁场的超声速扩压器流场.与常规扩压器比较可以发现,选用适当的外加电磁场组合可以使流动在更短的距离内实现减速扩压,并将部分动能转化为电能.研究表明:仅添加一定外磁场时,第一道激波位置、第二道激波位置、激波串长度分别为无外加电磁场情况的62.19%,77.74%和50.18%.     

基于模型参考的SINS/GPS制导炸弹俯仰偏航控制

由于SINS/GPS制导炸弹俯仰偏航要进行大空域的机动飞行,导致了其作为被控对象的状态方程参数变化剧烈,就要求飞控系统具有更强的适应能力和鲁棒性.因此.设计了基于模型参考变结构控制方法的鲁棒自动驾驶仪,具有良好的瞬态性能和抗参数大范围变化能力强等优点.以某型SlNS/GPS制导炸弹为例.选取典型的气动恶劣条件,进行了按给定制导指令飞行的六自由度全弹道飞行控制仿真,仿真结果表明,该自动驾驶仪能对制导炸弹实现鲁棒自适应控制,为飞控系统设计提供了重要参考.