首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   14741篇
  免费   445篇
  国内免费   521篇
教育   10234篇
科学研究   2412篇
各国文化   113篇
体育   624篇
综合类   917篇
文化理论   21篇
信息传播   1386篇
  2024年   8篇
  2023年   98篇
  2022年   164篇
  2021年   307篇
  2020年   441篇
  2019年   373篇
  2018年   318篇
  2017年   307篇
  2016年   396篇
  2015年   438篇
  2014年   497篇
  2013年   975篇
  2012年   1060篇
  2011年   1075篇
  2010年   609篇
  2009年   733篇
  2008年   1012篇
  2007年   1177篇
  2006年   1241篇
  2005年   1070篇
  2004年   891篇
  2003年   695篇
  2002年   530篇
  2001年   365篇
  2000年   285篇
  1999年   150篇
  1998年   94篇
  1997年   84篇
  1996年   79篇
  1995年   42篇
  1994年   42篇
  1993年   39篇
  1992年   31篇
  1991年   22篇
  1990年   15篇
  1989年   21篇
  1988年   4篇
  1987年   6篇
  1985年   5篇
  1984年   2篇
  1983年   2篇
  1980年   1篇
  1979年   1篇
  1976年   1篇
  1957年   1篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
讨论了G相对乘积空间中的Ti(i=-1,O,l,2)与次T0分离性质.  相似文献   
82.
用矩阵方法对点的合成运动进行分析、研究,推导出求解点的合成运动的矩阵计算公式,这些公式有助于理论力学在计算机上的应用,并对提高理论力学的教学质量可起到积极的作用。  相似文献   
83.
高速PCB中,由于过孔数量较多导致信号产生严重畸变.文章首先分析了过孔对高速信号质量的影响,然后通过在过孔周围添加去耦电容器来抑制同步开关噪声(SSN).结果表明,在过孔周围添加去耦电容器可以有效地减小同步开关噪声,使得信号波动峰值减小,提高了信号质量.  相似文献   
84.
当前,我国高校毕业论文(设计)存在抄袭、拼凑成风的不良现象,结合高职院校计算机专业毕业论文指导工作的现实情况,有针对性地提出了基于工作过程的改革方法,在实践中让学生自主选题,形式上不拘一格,并且规范写作与指导流程,使得毕业论文(设计)真正地为学生服务。  相似文献   
85.
澳大利亚国家图书馆展览政策研究   总被引:1,自引:0,他引:1  
李剑 《图书情报工作》2019,63(13):137-144
[目的/意义]国内图书馆对展览政策的研究较少,而国外图书馆在相关领域有比较成熟的做法。研究国外图书馆展览政策有助于促进国内图书馆展览工作的开展。[方法/过程]通过对澳大利亚国家图书馆展览政策与展品租借政策文本的梳理与研究,探索其有益做法对我国图书馆的启示。[结果/结论]我国图书馆应从4方面完善展览工作:①重视展览工作的组织建设;②重视对展览原则的研究;③结合国家文物保护政策制定展品借出政策;④结合我国实际制定展品借入政策。  相似文献   
86.
The development of artificial intelligence (AI) technology expands the boundary of business practice, inducing the emergence and application of business intelligence (BI) that has promoted the transformation of information techniques to optimize business decision and operation. However, there is a lack of theoretical consensus and measurement of the technology embedded in BI at present. This study exploratively develops the Sense-Transform-Drive (STD) conceptual model of BI based on dynamic capabilities theory and organizational evolutionary theory to explain the core BI capabilities. By using factoring analysis and structural equation modeling analysis, we extract the latent constructs and empirically verify the validity of the STD model and further examine the correlation and mode of interaction of the three core BI capabilities and the impact of BI application on firm performance in the real economy with a sample contextual to Chinese business practices. The study results show that there are direct and high-intensity cumulative positive effects among the structural components of the STD conceptual model and BI-related dynamic capabilities can enhance operating efficiency and firm performance.  相似文献   
87.
The present study aims at describing the psychological complaints reported, as a part of the criminal investigation process, by the victims of sexual abuse as a part of the criminal investigation process, without attempting at reaching a medical diagnosis; and it discusses the relation of these reports with variables such as victim's gender, age and relation to the offender, type and duration of abuse, and parental marital status of the victim. Data is obtained from the statements of childhood sexual abuse (CSA) victims under the age of 15, as taken by Istanbul Juvenile Justice Department between the years 2009 and 2012. The sample consists of 175 cases with a total of 202 victim statements. Through the use of content analysis, the main and sub-categories of themes of the statements were determined. By means of the evaluation of the psychological condition of victims, we evaluated them in two categories: psychological complaints including self-harm and risk taking behaviors and psychological complaints with no self-harm and risk taking behaviors. The statistical analyses yield significant relations between the psychological complaints and children's parental marital status. Analysis of initial statements of sexual abuse victims is important as it may greatly contribute to professionals diagnosing and treating psychological complaints of these victims. It is essential that victims of sexual abuse should receive immediate psychological support starting with the criminal investigation process.  相似文献   
88.
Digitize-and-lend library projects can benefit societies in multiple ways, from providing information to people in remote areas or with physical disabilities to facilitating the sharing of library resources with information-poor communities. This article explores the potential of digitize and lend as well as outlines how projects can be undertaken in a manner respectful of the balance of copyright.  相似文献   
89.
Due to the importance of education for sustainable heritage preservation, it is imperative to pay attention to how heritage is taught in the education system. As a multicultural country with a rich cultural heritage, Malaysia is home to four world heritage sites. This paper investigates Malaysia's new primary school curriculum to determine to what extent the core curriculum cultivates an awareness of and sense of respect for heritage. The results reveal a focus on Malaysian intangible cultural heritage in some core subjects, such as history, Bahasa Malaysia, art, and music education.  相似文献   
90.
on the basis of linguistics, psychology and other related theory, we should carry out game teaching method to make students learn easily and happily because of the lack of interest and other problems i...  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号