新疆生产建设兵团竞技体育发展战略与对策研究

本文以新疆生产建设兵团竞技体育发展为主题,对新疆生产建设兵团竞技体育在全国体育的地位、自身的特点进行了分析,在此基础上提出了兵团竞技体育发展的步骤及主要对策,以期为兵团竞技体育的发展提供参考。     

清季民初国家主义教育思潮及其影响述论

作为近代中国教育思潮的一种,国家主义教育思潮最早出现在清末,五四后至二十年代达到鼎盛,其标志是出现了专门的教育团体——国家教育协会和专门的学派——国家主义教育派。清季民初国家主义教育思潮的兴起与发展,从内因上看是受民族危机的刺激,在外因上则是受日本和欧美同类思潮的影响。该思潮对清季民初中国教育,特别是对二十年代的收回教育权运动,产生了重要影响。     

Quantifying the performance effects of idle time utilization in multiserver systems

In many practical multiserver queueing systems, servers not only serve randomly arriving customers but also work on the secondary jobs with infinite backlog during their idle time. In this paper, we propose a c‐server model with a two‐threshold policy, denoted by (e d), to evaluate the performance of this class of systems. With such a policy, when the number of idle servers has reached d (<c), then e (<d) idle agents will process secondary jobs. These e servers keep working on the secondary jobs until they find waiting customers exist in the system at a secondary job completion instant. Using the matrix analytic method, we obtain the stationary performance measures for evaluating different (e, d) policies. © 2006 Wiley Periodicals, Inc. Naval Research Logistics, 2007.     

Constrained minimax optimization of continuous search efforts for the detection of a stationary target

Analytical resolution of search theory problems, as formalized by B.O. Koopman, may be applied with some model extension to various resource management issues. However, a fundamental prerequisite is the knowledge of the prior target density. Though this assumption has the definite advantage of simplicity, its drawback is clearly that target reactivity is not taken into account. As a preliminary step towards reactive target study stands the problem of resource planning under a min–max game context. This paper is related to Nakai's work about the game planning of resources for the detection of a stationary target. However, this initial problem is extended by adding new and more general constraints, allowing a more realistic modeling of the target and searcher behaviors. © 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007     

Probabilistic solution and bounds for serial inventory systems with discounted and average costs

We consider the infinite horizon serial inventory system with both average cost and discounted cost criteria. The optimal echelon base‐stock levels are obtained in terms of only probability distributions of leadtime demands. This analysis yields a novel approach for developing bounds and heuristics for optimal inventory control polices. In addition to deriving the known bounds in literature, we develop several new upper bounds for both average cost and discounted cost models. Numerical studies show that the bounds and heuristic are very close to optimal.© 2007 Wiley Periodicals, Inc. Naval Research Logistics, 2007     

消防监督管理咨询专家系统的开发及应用——关于运用计算机和因特网提高消防管理现代化水平的思考

本文针对消防教学和消防管理工作的实际,探讨了消防监督管理咨询专家系统的开发和应用课题,并展望了如何运用多媒体和因特网工具提高消防管理现代化水平的前景。     

分布孔径红外系统的研究现状及其展望

介绍了分布孔径红外系统 ( DAIRS)的基本概念与研制现状 ,讨论了DAIRS在先进战斗机及其它作战平台上的应用 ,并简略介绍了其中涉及的关键技术 ,对 DAIRS系统将来可能的发展趋势作了预测。     

战区导弹防御(TMD)拦截器固体轨控发动机技术

叙述了固体轨控推进技术的突破———具有EXCELS(大气层内、大气层外、可控、可熄灭、质量轻、固态 )的轨、姿控系统 (DACS) ,为战区导弹防御提供了更大的机动性。试验证明这种DACS安全可靠、成本最低。     

论高校科技期刊的审稿工作

高校科技期刊现行审稿方法主要是单盲审稿和双盲审稿 ,这种封闭式暗箱操作的方法必然受到一些人为因素的干扰 ,影响审稿的客观和公正 ,从而影响期刊的学术质量。对此 ,在审稿中应加大外审稿的比重 ,启用中青年学者审稿 ,公开审稿和网上审稿。     

谈英语词汇学习的语义因素

词汇学习和记忆是学习语言的最基本的手段,也是运用语言的先决条件。学习英语词汇除了从词汇的语音、拼写和一般定义入手外,还应特别注意词汇的语义。本文尝试从词汇的语义关系这个角度论述语义在英语词汇学习中的重要性。