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排序方式: 共有836条查询结果,搜索用时 15 毫秒
1.
针对目前搜索引擎返回结果的海量性,构建一个元搜索引擎,旨在高效利用多个成员搜索引擎返回的结果。介绍元搜索引擎的基本架构及当前结果融合的主要方法,应用统计学方法研究网页标题、网页摘要与网页文本之间的相关性关系,从而确定相关度权值进行结果相关性判断。实验证明,元搜索引擎搜索结果的平均准确率比各个成员引擎的搜索结果平均准确率都有较大提高。 相似文献
2.
Cathy Oxley 《International Information and Library Review》2018,50(1):69-75
Libraries play a critical role in enhancing the learning landscape of the schools they support. In order for any library to become a powerhouse and a community meeting place, all library team members need to align with the library's vision, own it and begin to add their own strengths and talents purposefully. This article explores practical strategies for developing a visionary team, including supportive leadership, daily stand-up meetings, weekly staff meetings, special-focus teams, rostering and the “five conversations” approach. These effective strategies can be implemented across a broad range of library workforce contexts in order to ensure the most effective workforce teams are built. 相似文献
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4.
Cathy Lockhart Evonne Miller 《The International Journal of Art & Design Education》2016,35(2):213-228
Despite over three decades of legislation and initiatives designed to tackle the traditional gender divide in the science, technology and design fields, only a quarter of the registered architects in Australia are women. There are no statistics available for other design disciplines, with little known about why women choose design as a career path and who or what influences this decision. This qualitative research addresses this knowledge gap, through semi‐structured in‐depth interviews conducted with 19 Australian women who completed an industrial (product) design degree. Thematic analysis revealed three key themes: childhood aptitude and exposure; significant experiences and people; and design as a serendipitous choice. The findings emphasise the importance of early exposure to design as a potential career choice, highlighting the critical role played by parents, teachers, professionals and social networks. 相似文献
5.
瓮正科 《新疆职业大学学报》1995,(1)
本文通过具体的实例,利用 2.13Ⅰ的特显命令,在dBASEⅢ PLUS下设计了一个图形数据库,为实现统计图形参数设计提供一方法。 相似文献
6.
Cathy Devine 《Sport, Education and Society》2016,21(8):1193-1212
Universalist claims are often made about sport which is, as a consequence, increasingly written into national and international policy as an entitlement of citizenship or even human right. Further, in most countries physical education (PE) is a compulsory component of children's education, and sport is seen as central to this. Consequently, in the interests of justice sport must aspire to be egalitarian, that is, relevant to and meaningful for boys and men, and girls and women. In this context three fundamental questions are asked in relation to sport: (1) Do all citizens want to participate? (2) Who counts as a citizen? and (3) What are justice and equality? Feminist political and citizenship theory particularly the work of Pateman, Lister and Fraser is used to explore these questions and interrogate the ‘who’ of citizenship and the ‘what’ of justice in relation to framing sport policy in Europe and the UK. It is argued that notwithstanding the extensive use of the Council of Europe definition of sport,1 and despite or even because of the widespread adoption of the language of gender equality and gender mainstreaming, although formal sport citizenship rights might be accorded to all individuals and regarded as gender neutral, this masks a discourse of androcentric sport citizenship. This has captured European and UK sport policy and provision and is hindering further progress towards gender justice in sport and therefore PE. Given the universal and compulsory aspirations of sport particularly within PE, gender justice should be conceptualised not only as cultural recognition, political representation and economic redistribution within the normalised frame of competitive performance sport or ‘sport for sports sake’; but also as a critical meta-political remapping and reframing of sport as sport and physical recreation or ‘sport for all’. 相似文献
7.
Cathy Atkinson 《Educational Psychology in Practice》2006,22(4):321-336
Recent developments in literacy teaching have tended to target the needs of primary, rather than high school pupils and focus on technical, rather than affective aspects of reading. This paper describes a questionnaire‐based study undertaken to identify perceptions and views held by Key Stage 3 readers of different ages, genders and abilities. Outcomes support previous research, indicating differences between boys and girls and older and younger pupils, particularly in relation to reading preferences. Reading engagement appears to be linked to reading ability. EPs are challenged to offer perspectives that can contribute to literacy development at casework and curriculum levels. 相似文献
8.
中华鳖病毒及组织病理简报 总被引:2,自引:0,他引:2
于1994年广东斗门县一中华鳖(Trionyxsinensis)养殖场患红脖子病中华鳖和1996年广东东莞市一中华鳖养殖场患红底板和白底板病中华鳖中检测到3种病毒.红脖子病中华鳖检测到的病毒粒子吴杆状,具囊膜,大小103nm×(293~330)um,核衣壳大小69nm×(241~270)nm,于肠肌细胞质中复制、装配和成熟.在白底板中华鳖检测到的病毒粒子圆球形,无囊膜,直径70~75nm,于脾、肾和胃组织细胞质和细胞核中复制、装配和成熟.在红底板中华鳖肠细胞,检测到的病毒粒子直径85~90um,于肠细胞核中复制、装配和成熟. 相似文献
9.
UML是面向对象技术的一个重要应用,也是软件工程环境中对象分析和设计的重要工具.文章以汽车动力传动优化匹配专家系统为背景,探讨了利用统一建模语言对该系统进行需求分析,建立了系统的静态模型和动态模型,实现了对象模型转化为代码.通过实例表明用UML进行建模使得系统具有实用性、规范性和有效性. 相似文献
10.
Bart Rienties Bas Giesbers Simon Lygo-Baker Hoi Wah Serena Ma Roger Rees 《Interactive Learning Environments》2016,24(3):539-552
After a decade of virtual learning environments (VLEs) in higher education, many teachers still use only a minimum of its affordances. This study looked at how academic staff interacted with a new and unknown VLE in order to understand how technology acceptance and support materials influence (perceived and actual) task performance. In an experimental design, 36 participants were split into a control (online help) and experimental (instructor video) condition and completed five common teaching tasks in a new VLE. In contrast to most technology acceptance model research, this study found that perceived usefulness of the VLE was not related to (perceived) task performance. Perceived ease of use was related to intentions and actual behaviour in the VLE. Furthermore, no significant difference was found between the two conditions, although the experimental condition led to a (marginal) increase in time to complete the tasks. 相似文献