信息时代高职高专院校图书馆人才队伍建设的思考

通过对高职高专院校图书馆人才队伍现状的分析，找出在人员使用上存在的不足，并提出几点改进建议。     

世界一流大学图书馆的数字参考服务实践研究

文章通过对30所世界一流大学图书馆的数字参考服务发展现状的调查分析，总结了其发展现状和有益经验，同时对大学图书馆数字参考服务模型的建立提出了构想。     

整体优化:高校图书馆建设若干问题的思考

本文从系统论的视角审视高校图书馆建设中的整体优化问题，着重对高校图书馆建设中的建筑设置、内外环境、文献信息、队伍建设、读者服务等方面存在的问题进行考察分析，并结合当前高校图书馆发展的实际情况，对这些问题的优化及其与整体优化的关系深入进行了探讨。     

基于软件测试的缺陷管理系统的研究

研究了如何应用软件缺陷生命周期控制法解决软件测试中发现的缺陷，并对缺陷进行管理，为决策者提供决策支持，提高所开发的软件质量。阐述了系统的体系结构、业务流程、主要功能及主要表结构设计，并总结了缺陷管理的意义。     

"美丽中国"理念下"美丽出版"的宏观策略分析

"美丽中国"理念下"美丽出版"的实现离不开政府部门宏观策略的实施,包括制度性策略、规划性策略、整合性策略和导向性策略,这些宏观策略的使用能对"美丽出版"的贯彻与实施起到引导与规范作用,有利于"美丽出版"的早日实现.     

Not All Perceptual Gaps Were Created Equal: Explicating the Third-Person Perception (TPP) as a Cognitive Fallacy

Explicating the third-person perception (TPP) as a cognitive fallacy in the process of comparative social judgment of media effects, we propose that not all self–other perceptual gaps in media effects should be considered as TPP. When there is reasonably valid and accurate information regarding self vis-à-vis others on media consumption and vulnerability to media influence, the associated self–other gaps in media effects are not exaggerations, hence, not TPP. TPP results from cognitive biases in information retrieval and application in the process of comparative social judgments. Such biases are in the forms of self-other information differential, assimilation, contrast, and anchoring effects. Caveats in interpretation of extant evidence and implications for future TPP research are discussed.     

Dynamic confinement of SAPO-17 cages on the selectivity control of syngas conversion

The OXZEO (oxide−zeolite) bifunctional catalyst concept has enabled selective syngas conversion to a series of value-added chemicals and fuels such as light olefins, aromatics and gasoline. Herein we report for the first time a dynamic confinement of SAPO-17 cages on the selectivity control of syngas conversion observed during an induction period. Structured illumination microscopy, intelligent gravimetric analysis, UV-Raman, X-ray diffraction, thermogravimetry and gas chromatography-mass spectrometer analysis indicate that this is attributed to the evolution of carbonaceous species as the reaction proceeds, which gradually reduces the effective space inside the cage. Consequently, the diffusion of molecules is hindered and the hindering is much more prominent for larger molecules such as C₄₊. As a result, the selectivity of ethylene is enhanced whereas that of C₄₊ is suppressed. Beyond the induction period, the product selectivity levels off. For instance, ethylene selectivity levels off at 44% and propylene selectivity at 31%, as well as CO conversion at 27%. The findings here bring a new fundamental understanding that will guide further development of selective catalysts for olefin synthesis based on the OXZEO concept.     

Serrated lithium fluoride nanofibers-woven interlayer enables uniform lithium deposition for lithium-metal batteries

The uncontrollable formation of Li dendrites has become the biggest obstacle to the practical application of Li-metal anodes in high-energy rechargeable Li batteries. Herein, a unique LiF interlayer woven by millimeter-level, single-crystal and serrated LiF nanofibers (NFs) was designed to enable dendrite-free and highly efficient Li-metal deposition. This high-conductivity LiF interlayer can increase the Li⁺ transference number and induce the formation of ‘LiF–NFs-rich’ solid–electrolyte interface (SEI). In the ‘LiF–NFs-rich’ SEI, the ultra-long LiF nanofibers provide a continuously interfacial Li⁺ transport path. Moreover, the formed Li–LiF interface between Li-metal and SEI film renders low Li nucleation and high Li⁺ migration energy barriers, leading to uniform Li plating and stripping processes. As a result, steady charge–discharge in a Li//Li symmetrical cell for 1600 h under 4 mAh cm⁻² and 400 stable cycles under a high area capacity of 5.65 mAh cm⁻² in a high-loading Li//rGO–S cell at 17.9 mA cm⁻² could be achieved. The free-standing LiF–NFs interlayer exhibits superior advantages for commercial Li batteries and displays significant potential for expanding the applications in solid Li batteries.     

基于差异沉降控制的桩基优化设计

为解决传统桩基承载力低的问题,基于差异沉降控制优化设计桩基.分析桩基设计存在的问题,主要包括:桩基支承刚度设定误差高、桩基差异沉降大、桩基结构设计不合理,通过设定桩基支承刚度,控制桩基差异沉降,采用桩基塌孔承桩断裂结构,实现对桩基的优化设计.设计实例分析,结果表明,设计的桩基承载力明显高于对照组,能够解决传统桩基承载力...     

基于标记树的XML文档自动分类研究

本文首先介绍了XML文档和DTD标记树的生成方法,并对标记树中节点的概念进行了扩充,使之不但包括元素,同时也包括连接符,以适应DTD结构的要求。随后将标记树中的元素分为共有元素、文档元素和DTD元素,并提出层次权重和结构权重以衡量元素的层次和结构复杂程度,给出具体计算方法。在此基础上提出了一个衡量XML文档和DTD之间相似度的算法,将其应用于XML文档自动分类中,并给出该算法的时间复杂度计算公式。从实验结果可以看出,该分类方法准确率较高。