装备科研招标项目的价值工程评标模型

应用价值工程分析方法系统研究装备科研招标项目的评标问题,提出了功能指标体系,建立了功能评价系数、成本评价系数和价值评价系数模型,并举例介绍了此评标方法的实现过程。     

On the median residual lifetime and its aging properties: A characterization theorem and applications

This paper is devoted to study several aspects of the median residual life function (MERLF). In reliability studies, it is well known that, although the MERLF have several advantages over the mean residual life function (MRLF), the MRLF has the good property of uniquely determine a life distribution whereas either the median residual life function (MERLF) or an α‐percentile residual life do not have such good property. We shall give a characterization result where knowledge of both the MERLF and the survival function on an interval does uniquely determine the distribution. Moreover, in order to apply this characterization in practical situations, we propose a method to estimate the necessary information of the survival function. Relationships between analytical properties of the survival function and its associated MERLF are also obtained. Bryson and Siddiqui [J Am Statist Assoc 64 (1969), 1472–1483] proved relationships among seven criteria for aging, out of which two contained the MRLF (decreasing MRLF and net decreasing MRLF). In this paper, we prove that the same pattern of relationships holds if the MRLF is replaced by the MERLF. We also examine the aging criteria corresponding to an increasing MERLF and show that there is no relation between the behavior (increasing or decreasing) of the MERLF and of the MRLF. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2005     

基于混杂端口的VLAN设计

提出了一种基于混杂端口(hybridport)的VLAN设计方案。通过这种方式设计,在提高网络安全性的同时,避免了IP地址紧缺的问题。最后给出了基于华为交换机的混杂端口VLAN设计方案。     

论唯物史观的价值内涵

马克思的唯物史观作为一种理解与把握社会历史本质、社会历史现象的根本方法,既包含着对社会历史发展的客观必然性的理解,具有科学性的特征,也包含着人类社会自身的价值取向,贯穿着一定的价值理想与价值追求。     

和谐本位社会中公共政策的价值冲突及其均衡

以利益原则为基础的功利主义倾向是当前政府实践决策的主要选择,这种决策模式不能解决建构和谐社会中公共政策的价值冲突问题。如何更好地坚持和谐本位原则,寻求公共政策价值冲突的均衡,构造和谐的公共政策价值结构,是建构和谐社会的一个重要课题。试图通过寻求公共政策价值冲突的均衡,探求建构和谐社会中公共政策价值冲突的解决办法。     

提高MIMO系统容量的检测算法研究

为了满足通信容量的需求,在发射端和接收端设置多元素天线阵列构成多输入多输出系统,可以显著提高频谱的利用率.基于贝尔实验室提出的非线性迫零检测算法,提出了反向迫零检测算法.理论和仿真证明,在相同信噪比条件下,反向迫零检测算法获得的系统容量高于非线性迫零检测以及线性迫零检测算法.与奇异值分解算法相比,该算法虽然得到的系统容量有所减小,但是由于所需的运算量相对较小,因而易于实现.     

一类m-点边值问题的正解

研究一类二阶m-点边值问题u″ f(t,u,u)′=0,00,i=1,…,m-2,ζi满足0=ζ0<ζ1<ζ2<…<ζm-2<ζm-1=1和i∑=1aiζi<1。应用推广的Krasnosel-skii′s不动点定理,给出了上述边值问题至少存在一个正解的充分条件。     

关注民生 改善民生——中国共产党一以贯之的执政价值取向

民生问题是人类社会发展的基本问题,在科学社会主义理论体系中具有终极性价值意义。中国共产党自成立以来一直高度关注民生并致力于积极改善民生的各项工作,在此过程中形成了具有中国特色的社会主义民生思想,丰富了中国特色社会主义理论体系,为进一步推进我国民生改善的进程指明了方向。     

新型机动电源保障平台研究

为满足陆军装备对电源保障的特殊要求,提出了一种由发动机-发电机组、电功率变换器、蓄电池、交流电机驱动系统组成的新型机动电源保障平台,对平台中主要子系统进行了设计和开发,完成了一吨级4×4混合动力新型机动电源保障平台的研制。试验结果表明：研究成果不仅实现了保障平台机动能力强、功能多等要求,而且具有良好的操控性。     

Interchange fee rate,merchant discount rate,and retail price in a credit card network: A game‐theoretic analysis

We consider two game‐theoretic settings to determine the optimal values of an issuer's interchange fee rate, an acquirer's merchant discount rate, and a merchant's retail price in a credit card network. In the first setting, we investigate a two‐stage game problem in which the issuer and the acquirer first negotiate the interchange fee rate, and the acquirer and the retailer then determine their merchant discount rate and retail price, respectively. In the second setting, motivated by the recent US bill “H.R. 2695,” we develop a three‐player cooperative game in which the issuer, the acquirer, and the merchant form a grand coalition and bargain over the interchange fee rate and the merchant discount rate. Following the cooperative game, the retailer makes its retail pricing decision. We derive both the Shapley value‐ and the nucleolus‐characterized, and globally‐optimal unique rates for the grand coalition. Comparing the two game settings, we find that the participation of the merchant in the negotiation process can result in the reduction of both rates. Moreover, the stability of the grand coalition in the cooperative game setting may require that the merchant should delegate the credit card business only to the issuer and the acquirer with sufficiently low operation costs. We also show that the grand coalition is more likely to be stable and the U.S. bill “H.R. 2695” is thus more effective, if the degree of division of labor in the credit card network is higher as the merchant, acquirer, and issuer are more specialized in the retailing, acquiring, and issuing operations, respectively. © 2012 Wiley Periodicals, Inc. Naval Research Logistics, 2012