基于ANP的中国东西部技术创新能力比较

介绍了ANP(网络层次分析法)的基本理论,并运用ANP方法建立了区域技术创新能力的评价指标体系,确定了各指标的权值,对北京、上海、广东、重庆、四川、陕西6省市的区域技术创新能力进行了评价,并从知识创造、知识流动、企业的技术创新能力、技术创新环境、技术创新的经济绩效5个方面对它们进行了比较研究.为中国东西部科技政策、科技规划的制定提供了定量依据.     

A SEQUENTIAL APPROACH TO DERIVATION OF STAND TREATMENT AND FOREST-WIDE HARVEST PRESCRIPTION OR SUPPLY

Current methods for optimization of stand treatment and forest-wide harvest scheduling use mathematical programming that presumes perfect information on production, costs, and revenues over long planning periods. These approaches simultaneously optimize harvest for all periods in the planning horizon. In contrast, the method presented here assumes that stand-level planning and harvest scheduling proceed sequentially rather than simultaneously over every period. A backward-recursion dynamic program is used to determine the discounted net value of a wide range of current harvest strategies for each stand class in the forest inventory on the basis of a projected set of optimal treatments for future harvest and regeneration of each stand. The most highly valued strategy is selected if there are no volume constraints. Otherwise, suboptimal harvest alternatives are ranked in order of increasing opportunity cost for increasing or decreasing harvest; constraints met only up to a maximum opportunity cost is also demonstrated.     

氧化锌及纳米氧化锌研究进展

ZnO是一种重要的直接宽带隙半导体,室温下禁带宽度为3.37eV,激子束缚能为60meV,对于开发蓝绿、蓝光、紫外等多种发光器件有巨大潜力.纳米ZnO表现出与体材料明显不同的电学、磁学、光学、化学等性质,是目前纳米材料的研究热点之一.本文介绍了ZnO和纳米ZnO的一些基本性质,综述了近年来纳米ZnO的合成以及应用等方面研究的一些进展.     

地震CT勘探原理及其在公路隧道病害诊断中的应用

地震CT勘探是一种新的地球物理方法。具有分辨率高、可靠性强、信息量大、图象直观的特点。可以广泛地用于线路、场地、隧道、边坡等项目的工程地质勘查和病害诊断。在元磨高速公路芭蕉箐隧道的地质病害诊断中应用地震CT进行勘探,取得了良好的效果。     

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 在条纹沟槽表面减阻的研究发展及其优点的基础上 对条纹沟槽表面减阻进行水洞实验,研究在航行器外表面加工条纹沟槽所具有的阻 力特性. 通过对光体、0.1mmV型条纹沟槽表面和0.2mmV型条纹沟槽表面3 种不同模型在零攻角、不同水流速度下进行阻力测量, 测得条纹沟槽表面减阻特 性曲线. 从特性曲线中可以看出减阻效果约为8.3%. 实验的结果表明, 条纹沟槽 表面能明显降低水下航行器的阻力.     

现代加筋土技术应用与研究进展

对土工合成材料研究与应用概况、加筋土的国内外应用与研究进展、加筋土基本理论研究进展进行了综合分析,提出了今后研究工作的重点。     

Investigation of operational parameters for an industrial CFB combustor of coal, biomass and sludge

The combustion of coal and/or biomass （sludge, wood waste, RDF, etc.） in a circulating fluidized bed has been a commercial topper for over 20 years, and references to principles and applications are numerous and widespread although few data are presented concerning the operation of large scale CFB-units. The authors studied the CFB-combustion at UPM-Kymmene （Ayr）, a major paper mill relying for its steam production upon the combustion of coal （80-85 %）, wood bark （5-10%） and wastewater treatment sludge （5-10%）. The maximum capacity of the CFB is 58 MWth. A complete diagnostic of the operation was made, and additional tests were performed to assess the operating mode. The plant schematics, relevant dimensions and process data are given. To assess the operation of the UPM-CFB, it is important to review essential design parameters and principles of CFB combustors, which will be discussed in detail to include required data, heat balance and flowrates, operating versus transport velocity, kinetics and conversion （including the possible effect of the Bouduard reaction if carbon is present）. Since the residence time in the riser and the cyclone efficiency determine the burnout of circulating fuel-particles, the UPM-CFB was subjected to a stimulus response technique using nickel oxide as tracer. Results illustrate the efficiency of the cyclone separation and the number of recycle loops for particles of a given size. Results will also be used to assess the cyclone operation and efficiency and to comment upon expected and measured carbon conversion.     

添加聚合物对混合层流场特性影响的实验研究

叙述了适用于粘弹性流体混合层流场的实验装置的设计和研制．采用二维激光多普勒系统对混合层流场进行了测量，得到了平均速度剖面、动量厚度、湍流脉动强度、雷诺应力等一些流场的基本特征量．结果表明，混合层中加入聚合物后流场将有较大的变化，同时也说明本文所研制的实验装置满足实验的要求．     

科研成果在有机化学教学中的渗透

将有机化学的研究前沿、热点领域及其应用引入到课堂教学中,不仅使教学内容更加丰富、生动、深入,还可以拓宽学生的知识面,激发学生学习有机化学的兴趣,提高学生学习的热情和积极性。结合多年来有机化学教学实践及接触的前沿、热点领域,列出科研成果在有机化学教学中渗透的几个具体实例。     

如何撰写高水平的《大学化学》教学研究论文

论述了教学研究的重要性和复杂性。提出撰写教学研究论文应符合先进性、创新性、实证性、示范性和发展性等原则。介绍了教学研究涉及的主要领域,研究的主要内容和方法,对如何开展各领域教学研究并撰写高水平的教学研究论文进行了讨论并给出了示例。