论校园文化建设的思想与实践——基于华山中学校园文化建设活动的系列思考之一

本文介绍了文化概念的源起和基本内涵,提出校园文化是校园环境中所产生的特定文化,通过将华山中学校园文化建设实践经验与党的十七届六中全会"决定"内容相结合,论述了中小学校园文化建设是社会主义先进文化建设不可或缺的基础环节,只有以马克思主义文化观作为思想基础,在"兵团精神"的统领下,站在"教育兴则兵团兴,教育强则兵团强"的战略高度,把校园文化建设作为兵团基础教育的突破口,亮出品牌、凝聚人心、稳定队伍,才能更好地完成从"屯垦戍边"向"教育戍边"的转变,实现兵团跨越式发展。     

基于多传感器径向速度测量的目标跟踪方法

针对基于位置信息的目标跟踪在初始跟踪和运动模型变化阶段航向估计精度低的情况,利用传感器径向速度测量精度较高的特性,提出了一种基于多传感器径向速度测量的目标跟踪方法,解决数据更新周期长、定位精度低情况下目标跟踪的精度问题。仿真实验证明采用文中所提方法对跟踪精度有较大的提高。     

Deterministic and stochastic scheduling with teamwork tasks

We study a class of new scheduling problems which involve types of teamwork tasks. Each teamwork task consists of several components, and requires a team of processors to complete, with each team member to process a particular component of the task. Once the processor completes its work on the task, it will be available immediately to work on the next task regardless of whether the other components of the last task have been completed or not. Thus, the processors in a team neither have to start, nor have to finish, at the same time as they process a task. A task is completed only when all of its components have been processed. The problem is to find an optimal schedule to process all tasks, under a given objective measure. We consider both deterministic and stochastic models. For the deterministic model, we find that the optimal schedule exhibits the pattern that all processors must adopt the same sequence to process the tasks, even under a general objective function GC = F(f₁(C₁), f₂(C₂), … , f_n(C_n)), where f_i(C_i) is a general, nondecreasing function of the completion time C_i of task i. We show that the optimal sequence to minimize the maximum cost MC = max f_i(C_i) can be derived by a simple rule if there exists an order f₁(t) ≤ … ≤ f_n(t) for all t between the functions {f_i(t)}. We further show that the optimal sequence to minimize the total cost TC = ∑ f_i(C_i) can be constructed by a dynamic programming algorithm. For the stochastic model, we study three optimization criteria: (A) almost sure minimization; (B) stochastic ordering; and (C) expected cost minimization. For criterion (A), we show that the results for the corresponding deterministic model can be easily generalized. However, stochastic problems with criteria (B) and (C) become quite difficult. Conditions under which the optimal solutions can be found for these two criteria are derived. © 2004 Wiley Periodicals, Inc. Naval Research Logistics, 2004     

Safe distances

This work highlights the problem in military operations of setting safety limits for friendly forces, neutral forces, or civilians, to avoid sustaining unnecessary casualties both in wartime and in training. We present and investigate an analytic model which both enables the quantitative understanding of the inherent problems, and which furnishes a reasonably flexible tool in the hands of the analyst. Characteristic numerical results are displayed and analyzed: They show in particular that prevailing crude approximations are inadequate. © 2001 John Wiley & Sons, Inc. Naval Research Logistics 48: 259–269, 2001     

发挥教师教学主导 提升课程教学实效——对增强《思想道德修养与法律基础》课教师教学主导性的思考

《思想道德修养与法律基础》课是一门帮助大学生培养良好的思想道德素质和法律素质，进一步提高分辨是非、善恶、美丑和加强自我修养能力的课程。由于该课是一门融政治性、知识性、思想性、实践性于一体的综合性课程，内容涉及广泛，现实性和针对性很强。因此在教学上对教师提出了很高的要求。如何发挥好教师教学的主导性，调动学生主体作用是当前进一步提高该课程教学质量的关键。该文分析了发挥教师教学主导性的重要作用和当前这一课程教学面l临的主要问题，提出了增强教师教学主导性的有效途径。     

武警学院2010版人才培养方案的化学课程体系

为了更好地贯彻执行学院2010版《人才培养方案》，作为消防专业的化学专业基础课程体系必须进行重新调整和构建。进一步改革教学方法和教学手段，改进考核与评价模式。     

基于单元变形的网格间流场信息传递方法

针对单元网格发生变形重构中新旧网格之间的数据插值问题,提出一种基于格点格式有限体积法的流场数据传递方法。利用非结构动网格技术,将旧网格单元移动到新网格单元,同时时间推进求解流场控制方程,获得移动后旧网格单元物理量,并将其赋给新网格单元,以此来实现两套网格间的信息传递。计算结果表明,该方法在信息传递过程中没有引入插值误差,理论上流场求解方法的精度就是信息传递精度,验证结果表明其显著优于二阶插值精度。     

基于自适应小波正交基神经网络的参数辨识

提出了一种基于小波正交基神经网络的非线性在线辨识方法.小波变换具有良好的收敛速度和逼近精度,神经网络具有强大的非线性映射能力、自学习、自适应等优势,采用正交基小波函数作为神经网络的基函数构成小波神经网络,该网络兼有小波函数和神经网络的优点;制导航弹数字仿真结果表明, 该方法对含噪声数据进行处理效果好,能很好地满足非线性在线辨识的需求.     

关于亚纯函数微分多项式的值分布

运用Nevanlinna的亚纯函数理论方法,研究了亚纯函数微分多项式的值的分布理论,获得了若f(z)是超越亚纯函数,ψ是关于f的微分多项式,满足条件N(r,f) N(r,1/f)=S(r,f),关于ψ零点的几个结果,改进并推广了Yang C C和仪洪勋等人的有关结果.     

Reliability and mean residual life functions of coherent systems in an active redundancy

In this article, the reliability and the mean residual life (MRL) functions of a system with active redundancies at the component and system levels are investigated. In active redundancy at the component level, the original and redundant components are working together and lifetime of the system is determined by the maximum of lifetime of the original components and their spares. In the active redundancy at the system level, the system has a spare, and the original and redundant systems work together. The lifetime of such a system is then the maximum of lifetimes of the system and its spare. The lifetimes of the original component and the spare are assumed to be dependent random variables. © 2017 Wiley Periodicals, Inc. Naval Research Logistics, 64: 19–28, 2017