A bicriterion approach to common flow allowances due window assignment and scheduling with controllable processing times

We investigate a single‐machine scheduling problem for which both the job processing times and due windows are decision variables to be determined by the decision maker. The job processing times are controllable as a linear or convex function of the amount of a common continuously divisible resource allocated to the jobs, where the resource allocated to the jobs can be used in discrete or continuous quantities. We use the common flow allowances due window assignment method to assign due windows to the jobs. We consider two performance criteria: (i) the total weighted number of early and tardy jobs plus the weighted due window assignment cost, and (ii) the resource consumption cost. For each resource consumption function, the objective is to minimize the first criterion, while keeping the value of the second criterion no greater than a given limit. We analyze the computational complexity, devise pseudo‐polynomial dynamic programming solution algorithms, and provide fully polynomial‐time approximation schemes and an enhanced volume algorithm to find high‐quality solutions quickly for the considered problems. We conduct extensive numerical studies to assess the performance of the algorithms. The computational results show that the proposed algorithms are very efficient in finding optimal or near‐optimal solutions. © 2017 Wiley Periodicals, Inc. Naval Research Logistics, 64: 41–63, 2017     

Reliability bounds for the NBUE distributions

In this paper, we study upper and lower bounds on the reliability in new better than used in expectation (NBUE) life distribution class with fixed first two moments. By a constructive proof, we determine the upper bounds on the reliability analytically in different regions and show that these bounds are sharp. For the lower bounds, similar results are obtained except in one region. For that region, a conjecture is given for further study. © 2002 Wiley Periodicals, Inc. Naval Research Logistics 49: 781–797, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/nav.10035     

大机动格斗及近距空战的若干问题

较系统地综述了大机动格斗的一些基本战术和技术概念,引入了超机动性的一些度量,然后提出了使用具有刚体性质的质点飞机模型的可行性.最后提出在大机动格斗实战环境中,火力控制需要解决的若干问题.     

Ag2O 添加的YBa2 Cu3O7-δ超导材料的超导性能

用固态反应法按分子式ＹＢａ２Ｃｕ２．７Ａｇ０．３Ｏ７－δ（简称ＹＢＣＡＯ）制备了样品，利用Ｘ射线衍射，Ｒ－Ｔ曲线及扫描电镜ＳＥＭ研究了Ａｇ对于ＹＢＣＯ超导性能的影响。实验结果表明：晶粒得以细化，ＹＢＣＯ超导性能的稳定性有所增强。本文对结果进行了讨论。     

地炮营系统在常规战斗中的生存概率

分析了配备有C~3I 系统的地炮营综合系统在对抗条件下的生存概率。计算了常态下在常规战中地炮营综合系统的生存概率,并给出了综合分析结果与结论。     

一个空-空射击的指挥仪模型及其解算

导出了一种指挥仪式的空－空射击模型,用于计算弹丸飞行时间和瞄准角误差。文中的模型严格地区分了向量和向量的坐标表示两个不同的概念,引入了线性代数的记号和运算;不使用小角度假设;在外弹道学子模型中使用了弹丸飞行时间,而不是射程作为自变量。最后还构造了一种迭代格式,并讨论了有关的计算问题。     

C~3I系统EMC初探

ＥＭＣ是Ｃ３Ｉ系统的一项重要性能指标。文章从Ｃ３Ｉ系统ＥＭＣ实际存在的问题出发, 论述了ＥＭＣ与ＥＷ 的关系及Ｃ３Ｉ系统ＥＭＣ值得考虑的若干问题。     

软件排错费用研究

软件可靠性费用包括避错费用、排错费用和容错费用．在研究了软件排错费用的概念及构成,并重点对软件测试费用进行了分析后,提出了软件测试时间及费用模型,并对软件测试费用投入进行了优化．     

深化素质教育 培养创新人才

详细讨论了军队高等工科院校推进素质教育,培养创新人才的意义。对同素质教育、创新教育有关的几个问题做了初步辨析。结合军事工程教育课程建设,从转变观念,把握理论,调整关系,优化环境等方面,扼要提出了推进素质教育,培养创新人才应着重采取的几项宏观措施。     

防空兵战斗效率指标的探讨——射击指挥效能及测评

本文用系统分析法研究了射击指挥效能的递阶结构,给出了各指标确定的数学方法,将模糊数学方法引入测评。