全文获取类型
收费全文 | 225篇 |
免费 | 7篇 |
专业分类
工人农民 | 1篇 |
世界政治 | 1篇 |
外交国际关系 | 7篇 |
法律 | 85篇 |
中国共产党 | 5篇 |
中国政治 | 41篇 |
政治理论 | 5篇 |
综合类 | 87篇 |
出版年
2021年 | 1篇 |
2020年 | 4篇 |
2019年 | 4篇 |
2018年 | 4篇 |
2017年 | 4篇 |
2016年 | 7篇 |
2015年 | 4篇 |
2014年 | 18篇 |
2013年 | 20篇 |
2012年 | 34篇 |
2011年 | 43篇 |
2010年 | 19篇 |
2009年 | 12篇 |
2008年 | 11篇 |
2007年 | 11篇 |
2006年 | 13篇 |
2005年 | 6篇 |
2004年 | 5篇 |
2003年 | 1篇 |
2002年 | 4篇 |
2001年 | 2篇 |
1995年 | 1篇 |
1992年 | 1篇 |
1990年 | 1篇 |
1988年 | 1篇 |
1985年 | 1篇 |
排序方式: 共有232条查询结果,搜索用时 0 毫秒
231.
Wim Kerkhoff Annabel Bolck Ph.D. Erwin J.A.T. Mattijssen M.Sc. 《Journal of forensic sciences》2016,61(Z1):S102-S109
In shooting scene reconstructions, risk assessment of the situation can be important for the legal system. Shooting accuracy and precision, and thus risk assessment, might be correlated with the shooter's physical movement and experience. The hit patterns of inexperienced and experienced shooters, while shooting stationary (10 shots) and in running motion (10 shots) with a semi‐automatic pistol, were compared visually (with confidence ellipses) and statistically. The results show a significant difference in precision (circumference of the hit patterns) between stationary shots and shots fired in motion for both inexperienced and experienced shooters. The decrease in precision for all shooters was significantly larger in the y‐direction than in the x‐direction. The precision of the experienced shooters is overall better than that of the inexperienced shooters. No significant change in accuracy (shift in the hit pattern center) between stationary shots and shots fired in motion can be seen for all shooters. 相似文献
232.