全文获取类型
| 收费全文 | 376篇 |
| 免费 | 0篇 |
| 国内免费 | 1篇 |
专业分类
| 教育 | 230篇 |
| 科学研究 | 78篇 |
| 体育 | 30篇 |
| 文化理论 | 13篇 |
| 信息传播 | 26篇 |
出版年
| 2023年 | 1篇 |
| 2022年 | 4篇 |
| 2021年 | 4篇 |
| 2020年 | 4篇 |
| 2019年 | 11篇 |
| 2018年 | 23篇 |
| 2017年 | 13篇 |
| 2016年 | 12篇 |
| 2015年 | 14篇 |
| 2014年 | 10篇 |
| 2013年 | 45篇 |
| 2012年 | 12篇 |
| 2011年 | 15篇 |
| 2010年 | 9篇 |
| 2009年 | 4篇 |
| 2008年 | 8篇 |
| 2007年 | 8篇 |
| 2006年 | 9篇 |
| 2005年 | 61篇 |
| 2004年 | 25篇 |
| 2003年 | 17篇 |
| 2002年 | 5篇 |
| 2001年 | 4篇 |
| 2000年 | 3篇 |
| 1999年 | 4篇 |
| 1998年 | 3篇 |
| 1997年 | 2篇 |
| 1996年 | 3篇 |
| 1995年 | 3篇 |
| 1994年 | 3篇 |
| 1993年 | 1篇 |
| 1992年 | 4篇 |
| 1991年 | 3篇 |
| 1990年 | 1篇 |
| 1989年 | 2篇 |
| 1988年 | 4篇 |
| 1987年 | 3篇 |
| 1986年 | 3篇 |
| 1984年 | 4篇 |
| 1983年 | 2篇 |
| 1981年 | 2篇 |
| 1980年 | 2篇 |
| 1979年 | 2篇 |
| 1977年 | 1篇 |
| 1975年 | 2篇 |
| 1971年 | 1篇 |
| 1970年 | 1篇 |
排序方式： 共有377条查询结果，搜索用时 46 毫秒
101.
Survival strategies for academic publishing 总被引：1，自引：0，他引：1
102.
103.
104.
105.
106.
107.
Analysis of ankle protection in Association football 总被引：1，自引：1，他引：0
Football ankle protectors were evaluated against a kick from a studded boot. An anatomically correct test rig was used to
evaluate materials and designs. Sensors were used to determine peak pressures on the bony protuberances, and load spreading.
Finite element analysis (FEA), varying the material parameters and component dimensions, were used to explore pressure distributions
and shell buckling. Current designs, with thin ethylene vinyl acetate (EVA) foam and low-density polyethylene (LDPE) shells,
cannot prevent some football kicks causing bruising of the ankle. The protection level could be improved by using thicker
foams of higher modulus, and domed shells of higher stiffness. 相似文献
108.
109.
The rigidity of teachers unions has been given as a primary reason for their lack of representation among America’s rapidly growing, although still relatively small, charter school sector. In the case of post-Hurricane Katrina New Orleans, the city rapidly converted from a union-backed teacher workforce to a largely nonunionized charter school workforce in the years following state takeover and charter conversion. This makes the recent emergence of two single-school unions in charter schools there worthy of study. As the teachers attempt to organize single-school unions in a nearly all charter school system, what are their motivations? This case study of one of New Orleans’ emerging charter school unions found that pay inequities, job insecurity, a lack of teacher voice in school-level decisions, and a culture of compliance, all motivated teachers to seek unionization. Teachers hoped to promote equity and teacher involvement with their union, but the organizing effort did strain some relationships, particularly those involving middle management. 相似文献
110.