国内外大学图书馆联机公共检索目录（OPAC）现状分析   总被引：6，自引：0，他引：6  

芦红 《现代图书情报技术》2006,1(6):89-91

选择国内外大学图书馆中有影响的10种联机公共检索目录(OPAC)系统，对影响用户使用OPAC检索功能的若干核心指标进行深入分析，并以此为基础对我国OPAC系统的发展提出若干建议。  相似文献   

我馆几种主要期刊检索途径的调查与分析     

汪倩 《图书馆论坛》2004,24(4):81-83

通过对我校学生读者利用我馆期刊检索途径的调查，分析调查结果，寻找工作中存在的不足，提出改进对策。  相似文献   

网络环境下高校文献检索课互动式教学模式探讨研究   总被引：20，自引：0，他引：20  

程发良  陈莉 《图书馆论坛》2004,24(5):174-175

随着电子计算机和现代化检索技术的发展，文献检索课的教学面临着许多新的挑战。文章主要论述了为适应网络信息检索技术的发展，文献检索课在教材建设、教学方法、考核等方面所要做出的改革对策。  相似文献   

关于自然语言检索问题   总被引：13，自引：0，他引：13  

张琪玉 《图书馆论坛》2004,24(6):211-213,145

自然语言检索当前仅在关键词检索的层次上已经实现，重点分析了全文检索所适应和不适应的检索要求及其评价，用分析说明了当前关于自然语言检索的主流观点的不切实际，指出自然语言检索的发展方向是与情报检索语言结合和融合。  相似文献   

Consolidation of Black-dyed Māori Textile Artefacts: Evaluating the Efficacy of Sodium Alginate     

Catherine A. Smith  Rachel A. Paterson  Bronwyn J. Lowe  Rangi Te Kanawa 《文物保护研究》2018,63(3):139-154

Black-dyed artefacts are found in museums worldwide, many produced using an iron-tannate compound. Deterioration of iron-tannate dyed artefacts is an international preservation issue: in New Zealand the deterioration of paru (iron-tannate) dyed Māori textiles is widespread. This article reports experimental work testing the efficacy of sodium alginate, a consolidant developed for deteriorated paru-dyed muka (fibre from harakeke; Phormium tenax). The colour stability, strength retention, and acidity of paru-dyed muka consolidated with sodium alginate (0.25, 0.5, and 1% w/v in water) was tested pre- and post-artificial light ageing. This study found that sodium alginate had no negative effect on paru-dyed muka and in some cases provided benefit. Interestingly, the colour of paru-dyed muka is substantially more stable in UV-filtered light than previously recognised. Also microfading results were in agreement with visual assessments of colour change at 1 Mlux hour exposure, providing confidence in this relatively new technique to assess colour change.  相似文献   

Seeking Nettle Textiles – Utilizing a Combination of Microscopic Methods for Fibre Identification     

Jenni A. Suomela  Krista Vajanto  Riikka Räisänen 《文物保护研究》2018,63(7):412-422

Bast fibres have been commonly used as a textile material in Northern Europe since Neolithic times. However, the process of identifying the different species has been problematic, and many important questions related to their cultural history are still unanswered. For example, a modified Herzog test and the presence of calcium oxalate crystals have both been used in identification. In order to generate more reliable results, further research and advancement in multi-methodological methods is required. This paper introduces a combination of methods which can be used to identify and distinguish flax (Linum usitatissimum), hemp (Cannabis sativa), and stinging nettle (Urtica dioica). The research material consisted of reference fibres and 25 fibre samples obtained from 12 textiles assumed to be made of nettle. The textiles were from the Finno-Ugric and Historical Collections of The National Museum of Finland. The fibre samples were studied by observing the surface characteristics and cross sections with transmitted light microscopy, and by using a modified Herzog test with polarized light, in order to identify the distinguishable features in their morphological structures. The study showed that five out of 25 samples were cotton, 16 nettle, one flax, and one hemp. Findings from two samples were inconsistent. The results show that it is possible to distinguish common north European bast fibres from each other by using a combination of microscopic methods. Furthermore, by utilizing these combined methods, new and more reliable information could be obtained from historical ethnographic textiles, which creates new vistas for the interpretation of their cultural history.  相似文献   

Virtual Microscopy as a Learning Tool in Brazilian Medical Education     

Fernanda Somera dos Santos  Mariana Kiomy Osako  Gleici da Silva Castro Perdoná  Márcia Gaião Alves  Katiuchia Uzzun Sales 《Anatomical sciences education》2021,14(4):408-416

Virtual microscopy (VM) is a widely used teaching method in Medical Education in many developed countries. In Brazil, however, this is not the case for most medical schools, considering Brazilian social inequality and uneven access to technology. Recently, the Covid-19 pandemic has also challenged Universities to seek and make a transition toward more effective methods of full-time online education. Thus, the main goal of this work was to verify student's perception and academic performance, assessed upon VM implementation in a Brazilian Medical School. Ribeirao Preto Medical School students answered a 26-question survey with regards to optical microscopy (OM) and VM. Academic performance was compared between participants that were (year of 2019) or were not (year of 2015) exposed to VM. Taken the results together, subjective impressions such as handling, suitability, learning effectiveness, and pleasure using the tools, have shown a higher score for virtual microscopy (median = 29), when compared to optical microscopy (median = 24) with a P-value < 0.001 by Wilcoxon rank test, upon measurement using an ordinal scale. Regarding academic performance, no statistically significant differences were found between groups (P-value = 0.38, Cohen's d = 0.19). Therefore, VM proved to be adequate to the Brazilian medical education in light of Brazilian social contexts and Covid-19 pandemic.  相似文献   

可自动批改电子试卷设计与实现     

张金苗 《安徽教育学院学报》2006,24(3):95-97

文章通过挖掘常见应用软件本身具有的功能,阐述了三种不同机制实现可自动批改电子试卷的设计原理,制作可以实现自动批改的网页试卷、DOC/PPT试卷和电子表格试卷。  相似文献   

发菜分布区生态特征分析   总被引：1，自引：0，他引：1  

黄健 《青岛职业技术学院学报》2005,18(1):62-64

根据文献资料和作者多年的研究,对发菜产地的自然环境,例如风、湿度、光线、温度和土壤等地貌特征,进行了综述。分析比较了藻体在休眠期和生长期中,各生态因素的主要不同点,并对微小生物环境对生长的影响做了剖析。最后,阐述了发菜的节律性生长与各生态因素的节律性变化的关系。  相似文献   

Inter‐rater reliability of h‐index scores calculated by Web of Science and Scopus for clinical epidemiology scientists          下载免费PDF全文

Benjamin Walker  Sepand Alavifard  Surain Roberts  Andrea Lanes  Tim Ramsay  Sylvain Boet 《Health information and libraries journal》2016,33(2):140-149

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