全文获取类型
收费全文 | 4683篇 |
免费 | 92篇 |
国内免费 | 142篇 |
专业分类
教育 | 2334篇 |
科学研究 | 1137篇 |
各国文化 | 15篇 |
体育 | 326篇 |
综合类 | 241篇 |
文化理论 | 4篇 |
信息传播 | 860篇 |
出版年
2024年 | 4篇 |
2023年 | 24篇 |
2022年 | 58篇 |
2021年 | 107篇 |
2020年 | 171篇 |
2019年 | 131篇 |
2018年 | 148篇 |
2017年 | 73篇 |
2016年 | 88篇 |
2015年 | 144篇 |
2014年 | 319篇 |
2013年 | 432篇 |
2012年 | 462篇 |
2011年 | 424篇 |
2010年 | 337篇 |
2009年 | 302篇 |
2008年 | 339篇 |
2007年 | 337篇 |
2006年 | 244篇 |
2005年 | 215篇 |
2004年 | 153篇 |
2003年 | 128篇 |
2002年 | 97篇 |
2001年 | 54篇 |
2000年 | 37篇 |
1999年 | 14篇 |
1998年 | 18篇 |
1997年 | 7篇 |
1996年 | 12篇 |
1995年 | 2篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1989年 | 2篇 |
1985年 | 5篇 |
1984年 | 3篇 |
1983年 | 3篇 |
1982年 | 3篇 |
1981年 | 4篇 |
1978年 | 5篇 |
1977年 | 1篇 |
1976年 | 3篇 |
1957年 | 1篇 |
排序方式: 共有4917条查询结果,搜索用时 157 毫秒
101.
中国茶叶国际竞争力分析与政策建议 总被引:12,自引:0,他引:12
本文运用FAO的统计资料,利用国际市场占有率、显示性比较优势、生产者价格指数3个显性评价指标和单产这个隐性评价指标,测算了20世纪80年代以来中国与印度、斯里兰卡、肯尼亚和印尼茶叶的国际竞争力变化。分析表明,中国茶叶在4个评价指标上基本处于劣势地位,尤其表现在显示性比较优势、生产者价格指数和单产3个指标上。本文基于波特教授的“国家钻石”模型中国际竞争力的5个决定因素,提出提升中国茶叶国际竞争力的相应对策与建议:①在要素禀赋层面,重点解决低下的要素的生产率问题,要创造新的生产要素并将之导入茶叶产业;②在公司层面,要顺应国际茶叶竞争潮流,推行联合规模经营,走名茶名牌之路;③在关联产业层面,要积极发展专业化生产,为茶叶生产提供专业性的生产资料;④在需求层面,要在稳固传统市场的基础上,大力开拓新兴市场,降低出口市场的集中度;⑤在政府层面,要明确在WTO框架下的职能边界,重点解决好茶叶的标准化问题,从源头和末端对混乱的茶叶出口秩序进行有效的治理。与其它4个层面相比,对茶叶产业而言,政府的行为可能更为关键,因为中国的实际情况决定了这一点。 相似文献
102.
在培育世界一流科技期刊、破除论文“SCI”至上的双重背景下,以高校自然科学学报为研究对象,从办刊定位、学报管理、刊登内容、稿源结构和资源挖掘等5个方面对其竞争劣势进行分析。在此基础上,结合与其相关的办刊资源,分别从5个视角(差异发展、管理激励、高地引领、稿源优化和资源聚合)提出竞争力提升的路径选择,以期为高校自然科学学报的竞争力提升提供理论支持和路径参考。 相似文献
103.
本文从日本设置"外交档案管理员"新闻案例引入,梳理日本注重档案研究能力的表现,重点分析日本开展外交档案内容研究的原因--服务国家利益、发挥档案价值、提高档案职业认同和契合档案专业目标。最终提出相应启示--重视学科融合与研究成果、建立研究职能与培训制度、推动将研究能力纳入法规标准与职业认定。 相似文献
104.
105.
商务印书馆早期成功因素简析 总被引:1,自引:0,他引:1
本文从商务印书馆早期出版经营活动入手,从把握机遇、树立强烈责任心、重视人才、实行股份制形式、重视发行等方面,研究总结了商务印书馆早期的成功因素. 相似文献
106.
Previous papers on grey literature by the authors have described (1) the need for formal metadata to allow machine understanding
and therefore scalable operations; (2) the enhancement of repositories of grey (and other) e-publications by linking with
CRIS (Current Research Information Systems); (3) the use of the research process to collect metadata incrementally reducing
the threshold barrier for end-users and improving quality in an ambient GRIDs environment. This paper takes the development
one step further and proposes “intelligent” grey objects. The hypothesis is in 2 parts: (1) that the use of passive catalogs
of metadata does not scale (a) in a highly distributed environment with millions of nodes and (b) with vastly increased volumes
of R&D output grey publications with associated metadata; (2) that a new paradigm is required that (a) integrates grey with
white literature and other R&D outputs such as software, data, products and patents (b) in a self-managing, self-optimizing
way and that this paradigm manages automatically curation, provenance digital rights, trust, security and privacy. Concerning
(1) existing repositories provide catalogs; harvesting takes increasing time ensuring non-currency. The end-user expends much
manual effort/intelligence to utilize the results. The elapsed time of (1) the network (2) the centralized (or centrally controlled
distributed) catalog server searches (3) end-user intervention becomes unacceptable. Concerning (2) there is no paradigm currently
known to the authors that satisfies the requirement. Our proposal is outlined below. Hyperactive combines both hyperlinking
and active properties of a (grey) object. Hyperlinking implies multimedia components linked to form the object and also external
links to other resources. The term active implies that objects do not lie passively in a repository to be retrieved by end-users.
They “get a life” and the object moves through the network knowing where it is going. A hyperactive grey object is wrapped
by its (incrementally recorded) formal metadata and an associated (software) agent. It moves through process steps such as
initial concept, authoring, reviewing and depositing in a repository. The workflow is based on the rules and information in
the corporate data repository with which the agent interacts. Once the object is deposited, the agent associated with it actively
pushes the object to the end-users (or systems) whose metadata indicate interest or an obligation in a workflowed process.
The agents check the object and user (or system) metadata for rights, privacy, security parameters, and for any charges and
assure compatibility. Alternatively the object can be found passively by end-user or system agents. The object can also associate
itself with other objects forming relationships utilising metadata or content. Declared relationships include references and
citations; workflowed relationships include versions and also links to corporate information and research datasets and software;
inferenced relationships are discovered relationships such as between documents by different authors developed from an earlier
idea of a third author. Components of this paradigm have been implemented to some extent. The challenge is implementing—respecting
part two of the hypothesis—the integration architecture. This surely is harnessing the power of grey.
相似文献
Anne AssersonEmail: |
107.
校企合作式的电子商务实训模式实践 总被引:1,自引:0,他引:1
广东科学技术职业学院电子商务专业与多家公司进行了校企合作办学,开设"企业教学班"。该举措使学院教学体系更趋先进完善,实现了"订单式"人才培养。探索如何在合作中学校、企业、学生三赢,以求实现资源共享。 相似文献
108.
本文立足于Web of Science中的SCI-E、SSCI数据库,以1945年至2010年间国际创业教育领域的2000篇文献为研究对象和计量单元,将定量分析和定性研究相结合,运用国际新兴的CiteSpace软件和可视化方法进行知识计量和知识谱图绘制。在可视化图谱定量分析的基础上进行国际创业教育的研究前沿方面的定性研究,从而为国际创业教育领域的研究开拓了全新的视角和平台。 相似文献
109.
Qilong Zhang 《Asia-Pacific Journal of Teacher Education》2019,47(1):18-31
For over three decades, the discourse of quality has permeated the field of research, and there has been increasing policy interest for research assessment. In light of three conceptual perspectives and relying on a systematic literature review, this paper explores four non-traditional dimensions of criteria for assessing the quality of research on initial teacher education (ITE). The four dimensions are: innovative research questions; use for practice; research capacity building; and contribution to platforms and protocols. Covering empirical ITE research articles of Australia and New Zealand from January 2005 to October 2017, the review reveals that the majority of the articles meet most of the new criteria, which shows a different picture to that viewed through the traditional lens of research quality. The review is not intended to provide a ready-to-use framework for quality assessment of research on ITE but to exemplify the possibility that a long-contemplated, unconventional perspective on quality of research on ITE can be operationalised. 相似文献
110.
魏萍 《南昌教育学院学报》2011,26(1):182-183
文化产业现已成为国家支柱性产业,是国家软实力的象征。如何在新形势下,有效振兴文化产业,解决文化产业发展中存在的问题,全面提升文化产品和服务的竞争力,是我国当前所面临的重大课题。本文试图指出我国文化产业发展中的相对优势与问题,就提升我国文化产业竞争力的战略对策进行探索和分析,提出具有全局性和长远性的对策建议。 相似文献