中学作文教学八法

作文是中学语文教学的重要内容,也是学生学习比较困难的学科,如何教好学生写作,是语文教师长期探讨的问题,本文是作者长期从事中学作文教学的实践总结,提出作文的八种教学方法。     

The impact of component commonality on composite assembly policies

Assemble in Advance (AIA) policy reduces assembly cost due to advance planning, while Assemble to Order (ATO) policy eliminates assembly of excessive (more than demanded) units. The tradeoffs between the two policies have been studied in the past for single product environments. Moreover, it was shown that it is beneficial to employ AIA and ATO simultaneously. In this article, we study the employment of such a composite assembly policy in a multiproduct environment with component commonality. When common components are used, ATO may also enable us to benefit from the risk pooling effect. We provide important managerial insights such as: the multiperiod problem is myopic and changes in inventory levels due to the use of common components, and demonstrate the potential profit increase compared to other policies.© 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007     

Optimal burn‐in procedure for periodically inspected systems

Burn‐in is a widely used method to improve the quality of products or systems after they have been produced. In this paper, we study burn‐in procedure for a system that is maintained under periodic inspection and perfect repair policy. Assuming that the underlying lifetime distribution of a system has an initially decreasing and/or eventually increasing failure rate function, we derive upper and lower bounds for the optimal burn‐in time, which maximizes the system availability. Furthermore, adopting an age replacement policy, we derive upper and lower bounds for the optimal age parameter of the replacement policy for each fixed burn‐in time and a uniform upper bound for the optimal burn‐in time given the age replacement policy. These results can be used to reduce the numerical work for determining both optimal burn‐in time and optimal replacement policy. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007     

中亚四国伊斯兰教现状及对我国的启示

无论在历史上还是在现实中,伊斯兰教对中亚四国的政治、经济、文化等社会各方面都产生了深远的影响。在分析研究中亚四国伊斯兰教现状的基础上,阐述其对我国的启示。     

Cyclic scheduling in robotic flowshops with bounded work‐in‐process levels

This study addresses cyclic scheduling in robotic flowshops with bounded work‐in‐process (WIP) levels. The objective is to minimize the cycle time or, equivalently, to maximize the throughput, under the condition that the WIP level is bounded from above by a given integer number. We present several strongly polynomial algorithms for the 2‐cyclic robotic flowshop scheduling problems for various WIP levels. © 2010 Wiley Periodicals, Inc. Naval Research Logistics 58: 1–16, 2011     

关于小尺寸装药用炸药薄膜的研究

利用真空蒸镀技术对太安炸药薄膜及其在小尺寸装药上的应用进行了研究。实验表明利用真空蒸镀技术可以研制出性能优良的炸药薄膜 ;红外光谱分析证明太安在蒸镀前后没有发生质的变化 ;扫描电镜分析得出了太安薄膜的微观结构 ;太安炸药薄膜在小尺寸装药上的应用表明了该装药具有可靠的传爆功能。     

保障性分析在现役装备维修资源确定中的应用

针对我军现役装备维修保障资源建设中的弊端,分析了在现役装备维修保障资源确定中实施保障性分析的可行性,并介绍了与传统保障性分析的不同点及其主要流程,从而为我军现役装备维修保障的确定与配置实施提供了一个良好的思考方向。     

舰载激光武器系统建模与仿真技术

针对舰载激光武器系统仿真技术发展要求和应用方向,通过对舰载激光武器系统组成、功能和作战过程的分析,归纳整理出一套较完整的舰载激光武器仿真模型,其中对激光能量传输仿真模型和毁伤效果仿真模型进行详细描述;并提出仿真软件设计方案,包括软件功能组成、软件结构、软件运行流程等仿真软件设计要点;最后介绍了软件的仿真输出结果。文中设计的仿真软件可支持舰载激光武器系统的设计开发,也可以应用到舰船新型防空反导火控系统仿真认证中。     

群体性上访事件对警卫工作的影响及对策

在警卫工作中,群体性上访事件不仅威胁警卫对象、警卫目标、重要会议和重大活动的安全,而且处置不好还会损害党和国家的政治形象与国际形象。警卫工作中预防和处置群体性上访事件,首先要提高预警能力;其次要进行充分的处置准备,在具体处置时要注意运用正确的策略和方法,既要维护群众的根本利益,又要降低负面影响。     

毽球运动在新疆中小学推广的可行性分析

本文通过介绍毽球的特点,从新疆中小学体育教育现状出发,探讨毽球这项民族传统体育项目在新疆中小学体育教学中推广的必要性和可行性,为丰富当前中小学体育教学课程资源提供一些方法、手段和思路,并对民族传统体育项目的传承有积极意义。