理论背景及应用在复变函数教学中的提升作用

目前,国内复变函数教学普遍存往一些问题：缺乏适合课堂放学的优秀教材,教学手段落后单一．没有结合复变函数课程的特点,考核方式不够合理等突出问题。为适应索质教育釉社会发展的要求,培养学生的应用能力和创新能力,必须调整优化教学内容和体系;并结合复变函数课程自身过于抽象的特点改革教学模式,在复变函数的教学中穿插理论的来源背景及其在各学科中的简举应厢;制定合理的考核形式。     

微波与红外干衣实验研究

本文从干燥机理出发分析了微波干衣优于红外的性能，并且从实验表明微波干衣比用ＰＴＣ陶瓷板红外干衣平均节能１０～３０％，平均节时２０～４０％。     

Numerical and experimental study on the response characteristics of warhead in the fast cook-off process

The response characteristics of the warhead under thermal stimuli conditions are important to the safety improvement. The goal of this study is to obtain data on the warhead in the fast cook-off process. In this paper, a numerical calculation method is proposed, whose reliability is supported by comparison with experimental results. Through the numerical calculation, the temperature distribution, temperature change, and ignition time are acquired. The numerical results show that the ignition time is 76 s after the warhead started to burn and that the maximum temperature of the explosive's outer surface is 238.3 C at the ignition time. The fast cook-off experiment of the warhead is implemented so as to get the flame temperature and reaction grades that are not available through numerical calculation. The experimental results show that the overpressure fails to reach the preset minimum value which is equivalent to 6 kg of TNT and that the reaction grade is deflagration. The research results have reference value for the design of the warhead and the reduction of detonation risks.     

解决深层次思想认识问题增强战斗精神教育实效性

增强战斗精神教育的实效性,必须以加强我军根本职能和军人职业道德教育为基本途径、以增强立足现有装备打胜仗的信心为重点、以增强各级干部的责任感和使命感为关键,并积极探索平时培育战斗精神的长效机制,解决官兵思想认识上存在的深层次问题.     

Distribution network design: Selection and sizing of congested connections

This paper focuses on certain types of distribution networks in which commodity flows must go through connections that are subject to congestion. Connections serve as transshipment and/or switching points and are modeled as M/G/1 queues. The goal is to select connections, assign flows to the connections, and size their capacities, simultaneously. The capacities are controlled by both the mean and the variability of service time at each connection. We formulate this problem as a mixed integer nonlinear optimization problem for both the fixed and variable service rate cases. For the fixed service rate case, we prove that the objective function is convex and then develop an outer approximation algorithm. For the variable service rate case, both mean and second moment of service time are decision variables. We establish that the utilization rates at the homogeneous connections are identical for an optimal solution. Based on this key finding, we develop a Lagrangian relaxation algorithm. Numerical experiments are conducted to verify the quality of the solution techniques proposed. The essential contribution of this work is the explicit modeling of connection capacity (through the mean and the variability of service time) using a queueing framework. © 2005 Wiley Periodicals, Inc. Naval Research Logistics, 2005.     

军队党组织要崇尚法治,提高依法治军的本领

从严治军是古今中外治军之道的精要所在,依法治军是现代军队建设的一般规律。实践证明,只有坚持依法从严治军,才能从制度和法律上保证党对军队的绝对领导,保持人民军队的性质;保证军队的革命化、现代化、正规化建设的顺利发展,不断提高军队建设的现代化、正规化水平。军队各级党组织要深化认识,增强提高依法治军本领的自觉性;要正视差距,增强提高依法治军本领的紧迫感;要崇尚法治,努力提高依法从严治军的本领。其基本途径是:各级党组织要崇尚法治、摒弃人治,把坚持依法办事作为必具的本领素质;各级党组织要尊重规律、规范权力,走在依法治军的前列;要加强制度创新,为各级党组织依法治军提供可靠的合法性制度保证。     

挤密桩地基非饱和黄土变形强度特性的三轴试验研究

用非饱和土三轴仪和GDS应力路径三轴仪对兰州张家台变电站工地挤密桩复合地基桩间非饱和黄土和原状黄土进行系统的试验研究,通过同时控制吸力和净室压力的三轴排水剪切试验,分析探讨了挤密桩间黄土和原状饱和黄土的应力-应变性状及强度规律,得到了各自的变形和强度参数,并将这些参数进行了比较和分析,利用规范推荐的方法量化了灰土挤密桩对桩间非饱和黄土在地基承载力方面的改善作用。     

从四渡赤水到脱出金沙

1935年,进入西南地区的中央红军与"追剿"的蒋介石和国民党军展开周旋。国民党军欲一举置红军于死地,红军则要在困境中奋力图存。遵义会议后重新执掌红军领导权的毛泽东,一开始并未找到最适合红军生存的途径。经过几次试探,他很快敏锐意识到红军不能与国民党军展开硬碰硬的较量,而是要审时度势,毅然决然选择最有利的生存道路。一旦固有思维消解,在崇山峻岭、国民党方面又各自为战的西南地区,前路就豁然开朗。最终,红军在金沙江脱出了国民党军的包围圈。这一段历史充分证明,准确估计自己的力量,打破既有思维模式,对政治力量而言,具有何等重要的意义。     

着力抓好科学发展观在基层的全面落实

抓好科学发展观在基层的全面贯彻落实,必须充分认清科学发展观的巨大指导力量,不断激发基层官兵学习实践的内在动力;适应基层官兵特点,不断深化对科学发展观精神实质的理解;实施科学指导,在新的起点上谋求基层学习贯彻科学发展观的最大效益。     

用逆滤波基音同步分析提取声门波的方法

根据语音研究的要求,提出一种运用逆滤波基音同步分析提取声门波的方法,此方法可以比较准确地提取声门波。文中讨论了这种方法的原理、实现及其结果。