科技创新中的企业标准化工作

一、科技创新中标准化工作的重要意义 创新是一个民族的灵魂,是一个国家兴旺发达的不竭动力。整个人类历史,就是一个不断创新、不断进步的过程。没有创新,就没有人类的进步,就没有人类的未来。当代科学技术的发展,更加雄辩地证明了这一点。对企业来说,大力推进科技创新、实现技术发展的跨越极为重要。     

军事通信中ad hoc网络路由协议性能分析

移动ad hoc组网灵活,抗毁性很强,将在未来的军事通信中发挥重要作用。因此,对于移动ad hoc网络研究中的首要的路由问题作了探讨,先简要介绍了两种典型的路由协议OLSR(Optimized Link State Routing)和AODV(Ad hoc On-Demand Distance Vector Routing),接着利用网络仿真工具OPNET分析了AODV的协议特点,最后比较了两种路由协议的性能。仿真结果表明AODV路由开销小,但时延大,节点移动过快时存在路由稳定性的问题;OLSR路由开销很大,但时延相对较小。因此在搭建军用adhoc网时,应根据实际使用情形做出选择。     

一种防空自动化系统效能的模糊综合评估方法

针对防空自动化系统的组成,给出了防空自动化系统效能的指标体系,并通过分析防空自动化系统静态效能和动态效能的关系,运用模糊综合评估和系统性能评价等级划分的方法,在防空自动化系统静态效能评估的基础上,研究了防空自动化系统的动态效能,提出了一种静态效能与动态效能相结合的防空自动化系统模糊综合评估方法。     

Approximation schemes for single‐machine scheduling with a fixed maintenance activity to minimize the total amount of late work

We consider the problem of scheduling n independent and simultaneously available jobs without preemption on a single machine, where the machine has a fixed maintenance activity. The objective is to find the optimal job sequence to minimize the total amount of late work, where the late work of a job is the amount of processing of the job that is performed after its due date. We first discuss the approximability of the problem. We then develop two pseudo‐polynomial dynamic programming algorithms and a fully polynomial‐time approximation scheme for the problem. Finally, we conduct extensive numerical studies to evaluate the performance of the proposed algorithms. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 172–183, 2016     

Level workforce planning for multistage transfer lines

In this article, we define two different workforce leveling objectives for serial transfer lines. Each job is to be processed on each transfer station for c time periods (e.g., hours). We assume that the number of workers needed to complete each operation of a job in precisely c periods is given. Jobs transfer forward synchronously after every production cycle (i.e., c periods). We study two leveling objectives: maximin workforce size () and min range (R). Leveling objectives produce schedules where the cumulative number of workers needed in all stations of a transfer line does not experience dramatic changes from one production cycle to the next. For and a two‐station system, we develop a fast polynomial algorithm. The range problem is known to be NP‐complete. For the two‐station system, we develop a very fast optimal algorithm that uses a tight lower bound and an efficient procedure for finding complementary Hamiltonian cycles in bipartite graphs. Via a computational experiment, we demonstrate that range schedules are superior because not only do they limit the workforce fluctuations from one production cycle to the next, but they also do so with a minor increase in the total workforce size. We extend our results to the m‐station system and develop heuristic algorithms. We find that these heuristics work poorly for min range (R), which indicates that special structural properties of the m‐station problem need to be identified before we can develop efficient algorithms. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 577–590, 2016     

空空协同作战指挥控制系统

论述了研究与发展空空协同作战指挥系统的必要性 ,探讨了空空协同作战指挥系统的概念及系统的建模、结构模式 ,指挥决策的制定与优化、人机关系的处理、作战效能的评估与通讯共享集等几个问题     

用弹性动力学基本分析方法求解导弹 折叠翼展开的动响应

用机构弹性动力学的基本方法分析了一种导弹折叠翼展开的动力学问题,详细介绍了运动微分方程的解法,并将计算结果曲线与刚体动力学计算曲线、试验测得的曲线进行比较和分析,证明了该算法的可靠性和可行性。     

论领导干部的思维创新

从一定意义上看 ,思维创新是理论创新和实践创新的前提。思维创新在党的三次伟大理论创新和实践创新中发挥了重要作用。在新时期 ,要努力提高全党尤其是领导干部的思维创新素质     

公民道德建设是落实"以德治国"战略的重大举措

要加强公民道德建设,首先必须认识这一建设的重要意义,这是调动每个公民自觉投身社会主义现代化建设事业的内在要求,是搞好各项工作的前提条件.公民道德建设是发展先进文化的重要内容,是提高全民素质的一项基础性工程,对弘扬民族精神和时代精神,形成良好的社会道德风尚,促进物质文明与精神文明协调发展,全面推进建设有中国特色社会主义伟大事业,具有十分重要的意义.     

基于Neumann谱和PM谱的海浪感应磁场能量分布计算

结合前人在海浪功率谱以及海浪产生磁场两方面的研究 ,求出了海浪 磁场系统的传递函数 ,分析了该系统的性质 ,并利用该传递函数和Neumann谱、PM谱计算了磁场功率谱 ;在此基础上 ,根据实际观测我国海区的海浪高度 周期分布 ,求解海浪分布参数 ,模拟实际的海浪过程 ,求出了实际情况下的海浪感应磁场功率谱 ,并分析了其特性 .