MADM中不同属性的规范化研究

不同属性值的规范化是多属性决策问题中的重要过程.提出了一种属性值作为点到优区间和劣区间的距离的定义,依据该定义得到了属性值规范化新方法,并通过实例证明了新规范化方法的有效性.     

船舶静态电场跟踪的渐进更新扩展卡尔曼滤波器

为了实现利用船舶静态电场对船舶进行跟踪的目的,针对传统卡尔曼滤波算法中存在的问题,设计一种新的非线性滤波器。建立船舶的状态空间模型,分析传统卡尔曼滤波算法在船舶跟踪中存在的问题;依据渐进贝叶斯思想,利用连续白噪声与离散白噪声序列噪声协方差之间的关系,设计一种新的渐进更新扩展卡尔曼滤波器。仿真结果表明,该滤波器能有效地抑制由于初始误差较大而造成的滤波性能下降和滤波发散,能够有效地跟踪船舶,具有较高的实用价值。     

Introduction

ABSTRACT

The new nuclear history can make a critical contribution by forcing us to reconsider or reframe the theoretical premises of the concepts we apply to our understanding of the present – and with which we try to navigate the future. It bears on fundamental questions, such as: How should the US manage its alliances? Should it establish a multilateral nuclear policy dialogue in Asia? In what depth should it discuss issues of doctrine and targeting with its Asian allies? What capabilities might reassure European allies in light of current Russian revisionism? Could nuclear war be limited and controlled in an East Asian maritime arena? Do nuclear weapons strengthen an alliance, or do they introduce a divisive bone of contention? Is extended nuclear deterrence (END) stabilizing or is it on the contrary pushing the allies to ask for more? What is the relationship between nuclear and conventional forces in END credibility? How do nuclear alliances contribute to international security and international order? The lessons and insights from these papers, which look at five historical cases of US extended deterrence during the Cold War, should help us think about crucial current issues, and be of use both to historians who want to have a better understanding of the Cold War past and to policymakers who are currently grappling with these issues.     

A generic model of motor‐carrier fuel optimization

Fuel optimizers are decision models (software products) that are increasingly recognized as effective fuel management tools by U.S. truckload carriers. Using the latest price data of every truck stop, these models calculate the optimal fueling schedule for each route that indicates: (i) which truck stop(s) to use, and (ii) how much fuel to buy at the chosen truck stop(s) to minimize the refueling cost. In the current form, however, these models minimize only the fuel cost, and ignore or underestimate other costs that are affected by the models' decision variables. On the basis of the interviews with carrier managers, truck drivers, and fuel‐optimizer vendors, this article proposes a comprehensive model of motor‐carrier fuel optimization that considers all of the costs that are affected by the model's decision variables. Simulation results imply that the proposed model not only attains lower vehicle operating costs than the commercial fuel optimizers, but also gives solutions that are more desirable from the drivers' viewpoint. © 2008 Wiley Periodicals, Inc. Naval Research Logistics, 2008     

双枝模糊评判在舰炮性能评估中的应用*

针对舰炮武器性能指标,运用双枝模糊决策方法对舰炮武器性能进行综合评估.该方法提出了新的论域[-1,1],使评估更能符合人的思维逻辑,能够客观的对舰炮性能进行评估,通过对多中舰炮的具体参数指标进评估,得出各种舰炮的性能优劣的排序,具体的数学模型仿真表明,对舰炮武器性能的评估是行之有效的.     

应急装备保障多阶段长途运输模型研究

通过对应急装备保障实际场景的分析，提出装备应急运输过程应分2个不同的阶段进行研究。重点讨论了第1阶段涉及的运输问题，并建立相应数学模型。通过数学软件matlab实现了模型的求解，最后通过算例分析证明了模型的有效性。为相关运输问题的解决提供了一种有效的方法。     

基于复合信号的激光陀螺零偏误差补偿分析

作为一种集成了光学、电学和机械力学的复杂系统，激光陀螺可以精确地测量物体的角速率输出。为了满足惯性导航系统长时、高精度的测量要求，研究了激光陀螺内部不同类型的传感器与激光陀螺零偏误差之间的特性，在传统的基于温度的零偏误差补偿方法的基础上，引入了二频机抖激光陀螺内部温度传感器、光电二极管和粘在抖动机构上压电陶瓷的输出信息进行复合建模，利用非线性拟合能力强的支持向量机算法，针对不同类型信息与二频机抖激光陀螺零偏误差的相关性对模型进行优化。实验结果表明，该二频机抖激光陀螺零偏误差补偿模型的补偿精度高于传统的补偿方法。     

Analytic solution for the nucleolus of a three‐player cooperative game

The nucleolus solution for cooperative games in characteristic function form is usually computed numerically by solving a sequence of linear programing (LP) problems, or by solving a single, but very large‐scale, LP problem. This article proposes an algebraic method to compute the nucleolus solution analytically (i.e., in closed‐form) for a three‐player cooperative game in characteristic function form. We first consider cooperative games with empty core and derive a formula to compute the nucleolus solution. Next, we examine cooperative games with nonempty core and calculate the nucleolus solution analytically for five possible cases arising from the relationship among the value functions of different coalitions. © 2010 Wiley Periodicals, Inc. Naval Research Logistics, 2010     

思想政治教育对高校突发事件的防范功能研究

为维持高校和社会的和谐稳定，必须防范高校突发事件的发生。思想政治教育对高校突发事件有着特殊而重大的防范功能，它不但能为防范突发事件提供可靠的思想保证和精神动力，而且其本身就是防范突发事件的重要手段。思想政治教育在思想引导、心理干预、利益协调、情绪宣泄、预防文化教育和预警等方面都具有对高校突发事件的防范功能。     

基于改进LS-SVM的异步电机转子故障诊断

为了提高异步电动机转子故障的诊断精度,给出了一种基于改进最小二乘支持向量机(LS-SVM)的多故障分类算法。首先运用FFT处理电机的定子电流信号得到信号频谱图,从中提取故障特征向量;然后将特征向量送入改进算法进行故障诊断时,在原有多分类算法的基础上引入层次分析法确定故障类别的权重,根据权重值确定故障的诊断顺序,依次进行故障分类。实验表明,改进算法用于故障诊断节省了诊断时间,提高了诊断精度,具有很好的推广前景。