工业产品外观设计图库建设探讨

工业产品外观设计图库的建设能够有效解决工业设计专业图书资料馆藏不足等问题,文章介绍了如何利用方正德赛制作和发布系统建立工业产品外观设计图片数据库。     

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。     

学记的智慧——为师之道

《学记》是一篇概括和总结我国先秦时期教育思想和教育实践的专著,其中蕴含的智慧,时至今日仍具有现实指导意义。尤其关于为师之道的前提、教学原则和策略、师生关系的论述,对今天理解和实践为师之道有许多重要的启发意义,甚至与现象学、解释学哲学思想以及一些现代课程与教学论有异曲同工之妙。     

中等职校专业技能课程校本化的理性思考

中等职业学校必须服务于地方经济建设,在培养目标的总体要求下,开发出具有一定操作性和规范性的专业技能校本课程,这样,可以增强技能教学的有效性,促进技能型人才的培养。     

基于ASP.NET2.0的电子商务网站设计与实现

在介绍利用ASP.NET2.0技术构建并实现电子商务网站的基本店面功能的基础上,通过探讨网站开发的系统设计总体结构、功能实现及主要技术与方法,阐明基于ASP.NET的系统开发具有良好的可扩展性、更易于维护等特点。     

ENSO and Southeast Asian biomass burning modulate subtropical trans-Pacific ozone transport

Trans-Pacific transport of enhanced ozone plumes has been mainly attributed to fossil fuel combustion in Asia in spring, but less attention has been paid to vegetation fires in Asia. Here we show that the El Niño-Southern Oscillation (ENSO)-modulated fires in Southeast Asia, rather than Asian fossil fuel plumes, dominate the interannual variability of springtime trans-Pacific transport of ozone across the entire North Pacific Ocean. During El Niño springs, the intensified fires from both the Indochinese Peninsula and Indonesia, together with large-scale circulation anomalies, result in enhanced ozone plumes that stretch over 15 000 km in both the lower-middle and upper troposphere. This enhancement is also observed in the in situ measurements of ozone concentration, with an almost 10% increase at Mauna Loa Observatory, Hawaii, a unique site to monitor the long-distance transport over the North Pacific. This study reports an unexpectedly strong influence of vegetation fires, linked with climate variability, on global tropospheric chemistry and proves once more how complex the interactions in the climate system are.     

我国文献学研究的特点与前景展望

结合20世纪至今我国文献学的发展,从研究视角的变化、大文献学观的形成、专科文献学和专题研究的发展三方面,总结了我国文献学研究的三个特点,并对文献学今后的发展提出了一些建议。     

旅游管理本科专业实践教学改革探析

随着我国旅游业的快速发展,培养既掌握系统理论知识又具有很强的实践操作能力的旅游管理专业人人才,已成为各旅游本科院校面临的紧迫而艰巨的任务。为适应时代的要求,旅游管理院校需进一步深化实践教学改革,逐步完善校内和校外实践基地,加强旅游实践教学的师资力量,深化实践教学的管理,提高教学质量。     

我国图书情报领域期刊论文的科学数据引用特征研究

[目的/意义] 探索期刊论文科学数据引用特征与规律不仅有助于描述学科领域对科学数据的利用情况，还能够揭示学术成果表达中的数据引用模式。[方法/过程] 以我国图书情报领域6种期刊2017年与2018年第一期刊载论文为样本，结合国家标准《信息技术科学数据引用》的引用元素，采用内容分析法从9个维度对样本论文的科学数据引用行为进行数据编码，应用统计学方法描述图书情报领域期刊论文科学数据引用特征并探索不同维度特征间的关联关系。[结果/结论] 图书情报领域期刊论文广泛引用来自国内外的统计整理类科学数据，对期刊论文中个人研究科学数据的引用量较大；科学数据引用标注方式与科学数据类型存在一定对应关系，但多样化的标注方式缺乏统一性；二手引用现象较为突出，二手引用程度与科学数据创建者类型相关。     

The Effect of Visual‐Chunking‐Representation Accommodation on Geometry Testing for Students with Math Disabilities

Students who struggle with learning mathematics often have difficulties with geometry problem solving, which requires strong visual imagery skills. These difficulties have been correlated with deficiencies in visual working memory. Cognitive psychology has shown that chunking of visual items accommodates students’ working memory deficits. This study investigated the effects of visual‐chunking representation as a testing accommodation for improving students’ geometry problem‐solving performance. Participants were four third‐graders with difficulties in mathematics. An adapted reversal design was employed to examine the students’ performance changes during standard testing conditions and accommodated testing conditions. During the accommodated condition, students were presented with visual‐chunking images. Results suggested that the visual‐chunking representation accommodation improved students’ performance on geometry problem‐solving tasks, and an interview confirmed students’ preference for the visual‐chunking representation approach.