全文获取类型
收费全文 | 906篇 |
免费 | 17篇 |
国内免费 | 20篇 |
专业分类
教育 | 763篇 |
科学研究 | 75篇 |
体育 | 23篇 |
综合类 | 63篇 |
文化理论 | 1篇 |
信息传播 | 18篇 |
出版年
2023年 | 8篇 |
2022年 | 8篇 |
2021年 | 18篇 |
2020年 | 14篇 |
2019年 | 19篇 |
2018年 | 10篇 |
2017年 | 22篇 |
2016年 | 29篇 |
2015年 | 30篇 |
2014年 | 58篇 |
2013年 | 63篇 |
2012年 | 65篇 |
2011年 | 79篇 |
2010年 | 48篇 |
2009年 | 51篇 |
2008年 | 47篇 |
2007年 | 64篇 |
2006年 | 44篇 |
2005年 | 57篇 |
2004年 | 48篇 |
2003年 | 39篇 |
2002年 | 27篇 |
2001年 | 19篇 |
2000年 | 18篇 |
1999年 | 12篇 |
1998年 | 8篇 |
1997年 | 3篇 |
1996年 | 9篇 |
1995年 | 6篇 |
1994年 | 10篇 |
1992年 | 4篇 |
1991年 | 2篇 |
1990年 | 3篇 |
1989年 | 1篇 |
排序方式: 共有943条查询结果,搜索用时 15 毫秒
81.
Jill Bevan-Brown 《International Journal of Inclusive Education》2013,17(6):571-583
Being victims of racial prejudice, religious intolerance, poverty, disempowerment and language loss it could be expected that indigenous people would be supportive of the Inclusion Movement with its philosophy of valuing and acceptance of all people. This supposition is examined for Māori, the indigenous people of Aotearoa/New Zealand. In particular, three research studies investigating Māori perspectives of intellectual disability, blindness and vision impairment, and autism spectrum disorder (ASD) are examined for evidence of inclusive and exclusive attitudes and practices. Findings show that while Māori participants’ opinions varied, people with intellectual disabilities, ASD, blindness and vision impairment were generally valued family members and many examples of inclusive attitudes and practices were shared. Core Māori values support Inclusion. It is proposed that incorporating these values into education and disability services will not only result in more culturally appropriate provisions for Māori but will also contribute to the greater inclusion of all disabled people whatever their ethnicity. 相似文献
82.
谱序的发展由来已久,清代是谱序发展比较完善的时期,谱序的篇数庞大。随着时间的久远,新序和旧序的对比也比较明显。本文就新序和旧序内容上的不同,对其出现的原因和对应谱序的作用作了浅显的分析。 相似文献
83.
对钝项螺旋藻完整藻胆体与解离藻胆体吸收光谱进行了比较研究.随着藻胆体的逐渐解离,其吸收光谱表现出如下变化特点:在紫外光区,吸收峰始终位于355nm,尖形峰逐渐变成钝形峰;在红光区,都有很强的吸收,吸收峰呈平顶状,其半带宽逐渐变小;紫外光区与红光区相对吸收强度的比值逐渐变小;四级导数吸收光谱的小峰数目越来越少.室温荧光发射光谱表明,藻胆体在低于0.9mol/L的磷酸缓冲液中变得不稳定,并开始逐渐解离,解离的藻胆体与完整的藻胆体相比,其荧光发射峰波长逐渐变短. 相似文献
84.
认知无线电是一种可用于有效缓解当前频谱资源紧张的技术,而频谱感知是认知无线电的前提。针对低信噪比情况下频谱感知性能差的问题,提出一种将信号高阶统计量、协方差矩阵特征值与神经网络相结合的合作频谱感知算法。该算法考虑到认知用户与授权用户的信道衰落情况,利用神经网络较强的多分类能力,将最大-最小特征值之比、平均-最小特征值之比以及高阶统计量作为特征参数,通过神经网络实现合作频谱感知。仿真结果表明,该算法不仅在低信噪比情况下较其他算法具有更高的频谱检测率,而且对频谱中信号的调制类型也有较高的识别率。 相似文献
85.
For many young people in England, the move into continuing education involves a transfer from the school where they were educated to a further education college. For those with high‐functioning autism or Asperger's syndrome, this can be a challenging process. Past research has demonstrated some of the problems that these young people can encounter. This article by Wendy Mitchell and Bryony Beresford, both based in the Social Policy Research Unit at the University of York, adds to the evidence base by describing how best to support these young people, focusing specifically on ‘young person endorsed’ practice. Data are gleaned from qualitative interviews with 18 young people with high‐functioning autism/Asperger's syndrome. Findings reveal that young people welcomed the involvement of practitioners; however, specific forms of help and knowledge were particularly valued. In addition, it was parents, as opposed to professionals, who typically emerged as the most significant and valued source of support. Implications for practice are discussed, including the support needs of parents. 相似文献
86.
87.
本文阐述扩频通信的工作原理及目前无线局域网的特点和主要传输方式,并就扩频通信的四种工作方式、扩频技术的特点和扩频技术在无线局域网中的应用前景等作了介绍 相似文献
88.
罗飞飞 《新疆职业大学学报》2008,16(5):32-33
中国画的特点是以线条为基础的笔墨技巧作为造型的主要手段,作为画者通过这种笔墨技巧来表现心声、抒发情感。作为书画工具的笔墨、纸在操作时都机地产生着奇妙的不可预测性,作为运用作画工具的画者来说,在他构思、执笔时,都有其预期的目的。然而当作画者运用书画工具,在其具体的运作过程中就产生了中国画笔墨的不可预测性问题。本文通过大量文献资料、实例,就中国画笔墨的不可预测性问题开展了初步的探讨。 相似文献
89.
Traci-Ann Garrad Christopher Rayner Scott Pedersen Monica Cuskelly 《Journal of Research in Special Educational Needs》2021,21(4):381-391
Many teachers are sporadic in using evidence-based practice (EBP) concerning students with autism spectrum disorder (ASD). Numerous reasons have been posited for this. However, no single study has worked to understand the relative importance of identified criteria in the EBP decision-making processes of teachers. Through the development of a new survey tool, the Evidence-Based Practice Innovation Survey (EBPIAS), an exploration of the decision-making process of Australian teachers in their adoption and cessation of EBP was undertaken. Teachers rated the perception that an EBP would meet the needs of their students as the most important criteria in determining their use of EBP. Conversely, the judgement that an EBP did not meet the needs of their student was the most important criteria in their decision to cease use. In comparing the relevant importance of identified criteria, teachers rated the perception of training as the second-lowest consideration in their decision to adopt and cease using EBP. Consequently, there may need to be greater promotion of, or information concerning, the training required by teachers for effective implementation supporting a more balanced and holistic approach in assessing criteria impacting the adoption of EBP by teachers in the first instance, potentially lowering cessation rates. 相似文献
90.