全文获取类型
收费全文 | 362篇 |
免费 | 8篇 |
国内免费 | 13篇 |
专业分类
教育 | 254篇 |
科学研究 | 27篇 |
体育 | 54篇 |
综合类 | 40篇 |
信息传播 | 8篇 |
出版年
2023年 | 2篇 |
2022年 | 4篇 |
2021年 | 2篇 |
2020年 | 9篇 |
2019年 | 14篇 |
2018年 | 9篇 |
2017年 | 6篇 |
2016年 | 1篇 |
2015年 | 7篇 |
2014年 | 17篇 |
2013年 | 32篇 |
2012年 | 21篇 |
2011年 | 33篇 |
2010年 | 19篇 |
2009年 | 16篇 |
2008年 | 22篇 |
2007年 | 22篇 |
2006年 | 32篇 |
2005年 | 15篇 |
2004年 | 14篇 |
2003年 | 10篇 |
2002年 | 17篇 |
2001年 | 16篇 |
2000年 | 10篇 |
1999年 | 10篇 |
1998年 | 2篇 |
1997年 | 2篇 |
1996年 | 5篇 |
1995年 | 1篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1992年 | 2篇 |
1991年 | 3篇 |
1990年 | 2篇 |
1989年 | 1篇 |
排序方式: 共有383条查询结果,搜索用时 15 毫秒
1.
Victoria A. Roach Graham M. Fraser James H. Kryklywy Derek G.V. Mitchell Timothy D. Wilson 《Anatomical sciences education》2019,12(1):32-42
Research suggests that spatial ability may predict success in complex disciplines including anatomy, where mastery requires a firm understanding of the intricate relationships occurring along the course of veins, arteries, and nerves, as they traverse through and around bones, muscles, and organs. Debate exists on the malleability of spatial ability, and some suggest that spatial ability can be enhanced through training. It is hypothesized that spatial ability can be trained in low-performing individuals through visual guidance. To address this, training was completed through a visual guidance protocol. This protocol was based on eye-movement patterns of high-performing individuals, collected via eye-tracking as they completed an Electronic Mental Rotations Test (EMRT). The effects of guidance were evaluated using 33 individuals with low mental rotation ability, in a counterbalanced crossover design. Individuals were placed in one of two treatment groups (late or early guidance) and completed both a guided, and an unguided EMRT. A third group (no guidance/control) completed two unguided EMRTs. All groups demonstrated an increase in EMRT scores on their second test (P < 0.001); however, an interaction was observed between treatment and test iteration (P = 0.024). The effect of guidance on scores was contingent on when the guidance was applied. When guidance was applied early, scores were significantly greater than expected (P = 0.028). These findings suggest that by guiding individuals with low mental rotation ability “where” to look early in training, better search approaches may be adopted, yielding improvements in spatial reasoning scores. It is proposed that visual guidance may be applied in spatial fields, such as STEMM (science, technology, engineering, mathematics and medicine), surgery, and anatomy to improve student's interpretation of visual content. Anat Sci Educ. © 2018 American Association of Anatomists. 相似文献
2.
王广立 《广西职业技术学院学报》2019,(2):94-97
基于产教融合的视角,针对高职会计专业学生实习实践中存在的问题,以人工智能、大数据及财经职业教育的转型等对财务人员知识体系与能力发展提出的要求为导向,构建了“会计工厂”这一产教融合新模式。其构建路径包括:明晰构建目标,搭建“互联网+”会计学徒平台,将会计工作流程化,引入人工智能技术、影像识别技术、财经机器人等技术,实现工作智能化。“会计工厂”实行“每月轮行”“每周轮岗”的运作模式,具有职业场景真实,学习资源丰富,多行业、多岗位、多模式训练学生实操能力等特点,可以让学生们体验做“真账”、做“准员工”的感觉。 相似文献
3.
4.
应用转动参考系 ,给出了一种求解球坐标系中速度和加速度的简捷方法。该方法不仅图像清晰 ,简明直观 ,而且可应用到矢量力学教学中去 相似文献
5.
6.
7.
静态箱法在甲烷排放及稻田甲烷减排策略研究中的应用 总被引:1,自引:0,他引:1
为揭示天然湿地与稻田甲烷排放特征的差异,采用静态箱法对闽江河口天然湿地和稻田甲烷排放特征进行了比较,并探讨了水旱轮作的甲烷减排模式。结果表明:早稻田平均甲烷排放量为17.03 mg/m2.h,高于相应季节的天然芦苇沼泽甲烷排放量(7.47 mg/m2.h);天然湿地和稻田土壤理化特征差异是导致甲烷排放量不同的主要原因;早稻田甲烷排放量日变化主要受温度影响,而潮汐是影响天然芦苇沼泽的关键因素;水旱轮作可有效降低稻田甲烷排放。 相似文献
8.
基于MACRO的非圆二次旋转曲线轮廓的数控加工研究 总被引:2,自引:1,他引:1
针对常规手工编程中难以加工非圆二次旋转曲线的问题,对华中数控系统中典型的非圆二次函数公式曲线轮廓的车削加工进行研究。首先根据加工轮廓确定中心在坐标原点,且不倾斜的曲线方程,在solidworks软件中创建表达式,应用规律曲线参数模块绘制出曲线图形;然后将表达式中的方程进行坐标旋转及平移转换,绘制出与加工图纸一致的曲线轮廓;最后采用分析归纳法得出二次旋转曲线的宏程序模块,并给出该宏程序在旋转双曲线和椭圆曲面零件加工中的编程应用。实践表明,该宏程序对数控编程基础人员灵活应用非圆二次旋转曲线轮廓的编程方法与技巧有实际的指导意义。 相似文献
9.
从理论方面,对国内外主应力轴旋转情况下土的各向异性研究进行了对比和总结,并提出了一些研究建议。指出在理论方面,应当对屈服面方程采用应力分量表示的模型在三维空间里进行屈服面性状的描述,同时考虑不同加载方向下屈服面的变化特性以及旋转硬化的问题,并应开展对加载方向变化时土体屈服面变化特性的实验研究及理论验证。 相似文献
10.
Wrist movements have been identified as an important factor in producing a successful golf swing, with their complex motion influencing both club head velocity and orientation. However, a detailed analysis of wrist angles is lacking in the literature. The purpose of this study was to determine kinematics across wrists and club head characteristics during the golf swing under weak, neutral and strong grip conditions. Twelve professional male golfers executed 24 shots using a driver under three grip conditions. A six degrees of freedom analysis of the hand with respect to the distal forearm was performed using a 10-camera three-dimensional motion capture system. Differences in joint angles were explored using repeated measures ANOVAs at key swing events (onset, top of backswing and impact), in addition club head velocity and clubface angle at impact were also explored. Main findings revealed significant differences in flexion/extension and internal/external rotation for both wrists at all swing events, whereas fewer significant interactions were found in ulnar/radial deviation across grips for both wrists at all events. Clubface angle only differed significantly between the weak and the strong and neural grips, presenting a more ‘open’ clubface to the intended hitting direction. This study is the first to explore tri-planar wrist movement and the effect of different grips, such analysis has implications for coaching knowledge and practice and should inform future research into different aspects of skill, technique analysis and may inform injury mechanisms/prevention. 相似文献