高校图书馆数据库用户满意指数模型—假设与检验   总被引：1，自引：0，他引：1  

张新兴  杨志刚 《图书情报工作》2010,54(3):76-80

通过对市场活动中顾客满意度形成过程与数据库用户满意度形成过程进行对比,指出高校图书馆具有移植顾客满意指数模型进行数据库用户满意度测评的可行性。结合高校图书馆数据库及其用户特点构建高校图书馆数据库用户满意指数模型,设计调查问卷采集数据,运用部分最小二乘法对假设模型进行验证。最后计算出华南师范大学图书馆数据库的用户满意指数。  相似文献   

介于用户和图书馆员的心理契约——基于问卷调查的实证研究   总被引：1，自引：0，他引：1  

顾立平 《图书情报工作》2010,54(13):63-66

调查中国科学院研究生院的研究生对数字图书馆的观点。透过Pearson相关系数检验,结果显示两项明显相关性：“数字图书馆提供数据”和“数字图书馆提供文献下载”的相关性;“数字图书馆提供数据”和“数字图书馆提供问题解决方案”的相关性。得出结论：用户进入图书馆网站的目的性强,期望数字图书馆提供情报分析、与共同研究合作者的沟通服务以及问题解决模式等服务。建议应该在上述数字图书馆服务上建立起介于用户和图书馆员的心理契约的建议。  相似文献   

地方电子政务公共服务的公众接受问题——基于X市访谈数据的探索性研究     

陈贵梧 《图书情报工作》2011,55(3):130-133

对X市65位公众的访谈数据进行分析,探讨中国地方电子政务公共服务的公众接受问题。研究发现,政府部门对电子政务的宣传方式、渠道及其效果是影响电子政务公共服务可及性的关键性因素;效益性因素、制度性因素和技术性因素是影响公众接受和使用电子政务公共服务的关键性因素。在此基础上,提出了一个用于分析和解释中国地方电子政务公共服务的公众接受问题的初步框架。  相似文献   

Fracture behavior characteristic of ceramic reinforced metal-base coatings     

马崇  荆洪阳  徐连勇 《天津大学学报(英文版)》2009,15(1):50-55

The fracture behavior of a ceramic reinforced metal-base coating prepared by high velocity arc spraying (HVAS)technology in three-point bending test was studied.Moreover,finite element analysis(FEA)was adopted to analyze the stress distribution in the crack front.It can be found that the crack norrnal to the interface in the coatings occurred at the location where a fixed moment of force was reached.So the critical moment can be taken as thecoating cracking criterion,which was confirmed by FEA results.In addition,the stress levels at three different locations where cracks occurred near the interface are almost the same.The results will provide reference for the design of coatings and the structure integrity evaluation of coating/substrate systems.  相似文献   

Applications of Water Sensitivity In Situ Remediation at Saltwater-Freshwater Interface     

韩志勇  郑西来  陈继红 《天津大学学报(英文版)》2009,15(2)

Based on the laboratory experiments with the saltwater and freshwater replacing each other in the level sand column, taking the kaolin, illite, smectite, bivalent hydrargyrum ion (Hg2+) and phenol (C6H5OH) as exam-ples, this paper studies the applications of water sensitivity in situ remediation in saltwater-freshwater transition zone. In the water sensitivity process, the release and migration of clay minerals can make the hydraulic conductiv-ity (HC) decrease and pollutants remove. A new type of low penetrable or impenetrable purdah can be built by adding clay minerals into the sand media to replace the underground concrete impenetrable wall to prevent seawater intrusion, and a number of the heavy metals and organic pollutants in the sand media can be removed by in situ remediation. The results show that the content of kaolin and illite influences the water sensitivity process slightly, and HC of the sand columns descends from 0.011 cm/s to 0.001 4 cm/s and 0.001 2 cm/s respectively even if the content reaches 12% (weight ratio, sic passim). However, for smectite, HC descends sharply to about 1×10-8 cm/s when its content reaches 4%, and no water can flow through the sand columns beyond 5%. The particle release and migration processes can remove the Hg2+ and C6H5OH out of the sand columns efficiently, the removing rate of Hg2+ is 31.68% when the freshwater and saltwater are filtered through the sand columns polluted by Hg2+, while it is 67.55% when the water sensitivity occurs. With the same method, the removing rates of C6H5OH under the fluid flow and water sensitivity are 55.71% and 43.43% respectively.  相似文献   

I2C总线在51系列单片机系统中的实现   总被引：1，自引：0，他引：1  

孙艳秋  康巍威 《辽宁科技学院学报》2004,6(3):23-25

MCS-51系列、MCS-96系列等单片机由于都不带I2C总线接口而限制了其在I2C总线接口器件的使用.文中介绍了I2C总线的特征和时序,并以串行E2PR0M为例,给出了在51系列单片机上使用并行I/0口实现I2C总线接口的硬件电路和相关软件程序.  相似文献   

Users can change their web search tactics: Design guidelines for categorized overviews     

Bill Kules  Ben Shneiderman 《Information processing & management》2008

Categorized overviews of web search results are a promising way to support user exploration, understanding, and discovery. These search interfaces combine a metadata-based overview with the list of search results to enable a rich form of interaction. A study of 24 sophisticated users carrying out complex tasks suggests how searchers may adapt their search tactics when using categorized overviews. This mixed methods study evaluated categorized overviews of web search results organized into thematic, geographic, and government categories. Participants conducted four exploratory searches during a 2-hour session to generate ideas for newspaper articles about specified topics such as “human smuggling.” Results showed that subjects explored deeper while feeling more organized, and that the categorized overview helped subjects better assess their results, although no significant differences were detected in the quality of the article ideas. A qualitative analysis of searcher comments identified seven tactics that participants reported adopting when using categorized overviews. This paper concludes by proposing a set of guidelines for the design of exploratory search interfaces. An understanding of the impact of categorized overviews on search tactics will be useful to web search researchers, search interface designers, information architects and web developers.  相似文献   

Controlling the complexity in comparing search user interfaces via user studies     

Mika Käki  Anne Aula 《Information processing & management》2008

Over time, researchers have acknowledged the importance of understanding the users’ strategies in the design of search systems. However, when involving users in the comparison of search systems, methodological challenges still exist as researchers are pondering on how to handle the variability that human participants bring to the comparisons. This paper present methods for controlling the complexity of user-centered evaluations of search user interfaces through within-subjects designs, balanced task sets, time limitations, pre-formulated queries, cached result pages, and through limiting the users’ access to result documents. Additionally, we will present our experiences in using three measures – search speed, qualified search speed, and immediate accuracy – to facilitate the comparison of different search systems over studies.  相似文献   

图书馆为企业提供信息服务新模式的探索——国家科技图书文献中心的企业信息服务实践   总被引：3，自引：0，他引：3  

靳茜  揭玉斌  左浩泓 《情报理论与实践》2008,31(4)

分析了我国企业用户的信息需求特点以及科技信息机构提供企业信息服务的现状,以国家科技图书文献中心的企业服务实践为例,介绍了客制化解决方案和专业化信息服务平台的主要研制思想和特点,提出我国图书馆应建立需求导向制的企业资源建设和服务机制,并通过横纵向的多方合作提升企业服务能力,试图给国内图书馆如何开展企业服务掀开一个崭新的视角.  相似文献   

数字资源长期保存认证体系中用户相关指标分析     

张玫 《情报理论与实践》2008,31(4)

在OAIS参考模型的基础上,对3个具有代表性的长期保存系统认证体系中涉及用户的指标加以比较,分析它们在用户定义、数字对象的发现、传递及使用等方面的异同.最后指出认证体系还需要进一步加强政策的适应性、对变化的预防及用户感知的服务效果等方面的指标.  相似文献