用三参数旋转体模型描述的大形变核内核子的单粒子能级

用｛ｃ,ｈ,ａ｝三参数旋转体模型描述可以大幅度变化的原子核形状,通过合理选取与三参数有关的核子单粒子势,用基矢展开法求解单粒子运动Ｓｈｒｏｄｉｎｇｅｒ方程,用矩阵对角化方法求出了与核形状有关的核子单粒子能级。分析表明,本文计算出的单粒子能级是合理可信的,可用于计算大形变核之形变位能的壳修正和对修正。此工作在裂变动力学模拟计算中是不可缺少的。     

故障诊断专家系统的知识处理

通过对航空火力控制系统故障诊断知识的分析,提出了将其分为精确知识、不全面知识和模糊知识的处理方法,对它们在故障诊断专家系统中的表示和实现形式进行了讨论和研究。通过利用人工智能语言Ｔｕｒｂｏｐｒｏｌｏｇ编程运行,表明这种知识处理方法,在表示能力、可理解性、可访问性、可扩充性方面都有较好的特性。     

采用局域像素匹配的随机抽样一致改进算法

为提高图像拼接的配准精度和稳健性,提出基于局域像素匹配的随机抽样一致改进算法。在完成尺度不变特征变换算子或其他算子图像特征提取、特征匹配之后,利用独立于特征匹配点的局域像素,通过参考图像局域像素与映射的待拼接图像局域像素匹配,优选4对最佳特征匹配点,确定最佳单应矩阵。实验结果表明:与随机抽样一致经典算法相比,该方法未明显增加计算耗时,单应矩阵更准确,图像拼接稳健性更好。     

泡沫塑料衬垫的粘弹性有限元分析

介绍了一种用于聚氨酯泡沫塑料衬垫的粘弹性有限元分析程序,利用积分本构关系计算了轴对称衬垫中的应力松弛。从数值结果可见,当衬垫贮存１０００小时以后,装配应力大约松弛了２５％。     

复杂环境下线天线隔离度分析

讨论了一种复杂环境下线天线隔离度分析方法,此方法可以广泛运用于飞机、战车、导弹、舰船等复杂环境.采用一种矩量法(MOM)和一致几何绕射理论(UTD)的混合法,并结合二端口网络下天线间隔离度的知识来计算复杂环境下线天线隔离度.此混合法克服了单纯的矩量法难以计算电大尺寸系统中的天线,以及一致几何绕射理论的计算精度不够的缺点,最终能实现计算速度和计算精度的统一.     

培育当代革命军人核心价值观的关键着力点

增强培育当代革命军人核心价值观的主动性、针对性和有效性,必须注重在促进普遍理解认同和自觉培养践行上下功夫.促进理解认同的关键着力点是在对内涵和要求的深刻理解中把握当代革命军人核心价值观的根本指向.促进培养践行的关键着力点是在具体的思想和行为引导中促进当代革命军人核心价值观培育工作的深化.     

营造有利于征用民营企业物力资源的环境

本文叙述了信息化条件下的国防动员,对民营企业物力资源的征用将是一项必不可少的内容。因此,有必要在完善优惠政策、健全军品准入措施、构建征用补偿制度三个方面营造有利于征用民营企业物力资源的环境。     

Optimal production ramp-up in the smartphone manufacturing industry

Motivated by challenges in the smartphone manufacturing industry, we develop a dynamic production ramp-up model that can be applied to economically satisfy nonstationary demand for short-life-cycle products by high-tech companies. Due to shorter life cycles and more rapid evolution of smartphones, production ramp-up has been increasingly critical to the success of a new smartphone. In the production ramp-up, the key challenge is to match the increasing capacity to nonstationary demand. The high-tech smartphone manufacturers are urged to jointly consider the effect of increasing capacity and decreasing demand. We study the production planning problem using a high-dimensional Markov decision process (MDP) model to characterize the production ramp-up. To address the curse of dimensionality, we refine Monte Carlo tree search (MCTS) algorithm and theoretically analyze its convergence and computational complexity. In a real case study, we find that the MDP model achieves revenue improvement by stopping producing the existing product earlier than the benchmark policy. In synthetic instances, we validate that the proposed MCTS algorithm saves computation time without loss of solution quality compared with traditional value iteration algorithm. As part of the Lenovo production solution, our MDP model enables high-tech smartphone manufacturers to better plan the production ramp-up.     

On efficiency of multistage channel with bargaining over wholesale prices

This article considers a multistage channel with deterministic price‐sensitive demand. Two systems for pricing decisions, that is, the bargaining system and the leader‐follower system, are compared. We characterize the necessary and sufficient conditions on the power structure, under which the solution of the bargaining system Pareto dominates that of the leader‐follower system. Also, under such conditions, we give a tight upper bound of channel efficiency of the bargaining system, which converges to 100% channel efficiency as the number of stages increases to infinity. © 2016 Wiley Periodicals, Inc. Naval Research Logistics 63: 449–459, 2016     

国防科技发展战略研究中的定性定量分新方法及应用研究

谋划和制定国防科技发展战略是综合运用多层次、多学科和多种类科学方法的过程。在国防科技发展战略的方法学基本框架下,对当前几种发展战略研究的定性定量方法进行综述,针对这些研究方法发挥作用的层次不同,结合国防科技发展战略研究案例,提出定性定量方法的综合运用框架,为进一步提高发展战略的科学性提供参考。