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   1488篇
  免费   28篇
  国内免费   41篇
教育   898篇
科学研究   247篇
各国文化   25篇
体育   86篇
综合类   58篇
文化理论   5篇
信息传播   238篇
  2023年   8篇
  2022年   20篇
  2021年   36篇
  2020年   36篇
  2019年   34篇
  2018年   51篇
  2017年   50篇
  2016年   55篇
  2015年   53篇
  2014年   77篇
  2013年   146篇
  2012年   95篇
  2011年   105篇
  2010年   85篇
  2009年   101篇
  2008年   96篇
  2007年   91篇
  2006年   77篇
  2005年   76篇
  2004年   42篇
  2003年   27篇
  2002年   31篇
  2001年   28篇
  2000年   26篇
  1999年   18篇
  1998年   15篇
  1997年   10篇
  1996年   9篇
  1995年   5篇
  1994年   10篇
  1993年   14篇
  1992年   7篇
  1991年   4篇
  1990年   4篇
  1989年   2篇
  1987年   1篇
  1986年   1篇
  1985年   4篇
  1984年   1篇
  1983年   1篇
  1982年   2篇
  1979年   1篇
  1978年   1篇
  1975年   1篇
排序方式: 共有1557条查询结果,搜索用时 15 毫秒
101.
来新夏 《寻根》2007,(6):126-127
家谱为表谱之一种,记载以血缘关系为主体之家族世系与族人事迹之编纂体裁。肇端于远古,甲骨、金文已见其雏形;商周以还,官私撰述,为数不少。太史公撰《史记》即参考春秋之前大量谱牒,故其《自序》云:“维三代尚矣,年纪不可靠,盖取之谱牒旧闻”,惜多已亡佚难求。  相似文献   
102.
Although research has demonstrated a strong linkage between meaning of life and positive emotion, few studies have examined this association in the context of acculturation. The purpose of this study was to investigate the predictive effects of meaning of life and acculturative stressor on positive affect in a sample of Chinese international students in Australia and Hong Kong, and to compare these effects between the two groups. Four hundred mainland Chinese postgraduate students at six universities in Hong Kong and 227 Chinese international students at the University of Melbourne in Australia completed a questionnaire that included measures of acculturative stressor, meaning of life, positive affect, and demographic information. The analyses revealed that (1) meaning of life had a strong positive contribution to predict positive affect in acculturation, and acculturative stress had a negative impact on positive affect within both samples; (2) social interaction had a significant negative predictive effect on positive affect in both samples, and academic work served as a significant negative predictor of positive affect in the Hong Kong sample; and (3) meaning of life was found to mediate the relationship between acculturative stress and positive affect in both samples. The theoretical and practical implications of the study are discussed.  相似文献   
103.
智囊参与教育决策是社会发展与教育发展的必然要求,其在教育决策的问题提出、方案拟定、策略制定、政策修正与完善等环节中具有重要的作用,能有力地促进教育决策的民主化与科学化。而坚持民主与集中的教育决策原则、建立健全教育决策机制则是实现智囊与决策者之"谋"与"断"辩证统一的重要途径。  相似文献   
104.
介绍了光伏电池模型的工程数学模型,并在MATLAB/SIMULINK环境下建立了光伏电池的工程仿真模型。为了能够实现光伏电池的最大功率输出,本文介绍了最大功率跟踪的原理和方法。使用增量电导法实现最大功率点跟踪。并在MATLAB/SIMULINK环境下搭建光伏发电系统的仿真模型进行了仿真。仿真结果表明,搭建的光伏电池波形以及最大功率跟踪控制的仿真结果证明了可行性,可以用于光伏发电系统的仿真研究。  相似文献   
105.
武苗苗  周来 《科技通报》2015,(4):142-144
对嵌入式Linux系统进程中的任务调度算法设计是保证操作系统稳定和高效运行的核心要素。传统的嵌入式Linux系统任务调度算法采用分簇能耗调度的PSO遗传进化算法,当任务复制和区间插入失衡时,调度效果不好。提出一种基于可变精度衰减调制的Linux嵌入式任务调度算法,首先进行Linux嵌入式任务调度平台总体设计,进行任务信息流模型构建,将嵌入式系统客户端将创建好的任务流提交给服务器,结合任务流集合中各任务流的优先级属性和提交时间,进行变精度衰减调制,得到Linux嵌入式分簇任务调度模型。实验结果表明,该算法无论是单个任务流还是在多任务流调度运行环境下,改进算法的任务调度耗时较少,通过可变精度衰减调制,保证了多任务流中的任务能够按照流程优先级属性以及提交的先后次序进行合理的分配,有效提高了Linux嵌入式系统的运行效率。  相似文献   
106.
羌文化是多元文化中的重要一支,却面临着羌语濒危,文化主体、文化传承“生态语境”缺失,文化传承行为严重失衡等现实困境.学前儿童是未来文化主体,教育是人类文化得以传承的主要途径,学前教育是实施民族文化传承教育的关键期和重要期,学前教育中羌文化传承“语境”损毁而导致羌文化传承教育弱化.因此,塑造学前教育羌文化传承的“生态语境”,突围羌文化传承困境,实施学前儿童羌文化传承“叙事体验”教育,是学前教育羌文化传承的有效建设和重要驱动.  相似文献   
107.
Educational researchers commonly use the rule of thumb of “design effect smaller than 2” as the justification of not accounting for the multilevel or clustered structure in their data. The rule, however, has not yet been systematically studied in previous research. In the present study, we generated data from three different models (which differ in the location of the clustering effect). With a 3 (design effect) × 5 (cluster size) × 4 (number of clusters) Monte Carlo simulation study we found that the rule should not be applied when researchers: (a) are interested in the effects of higher-level predictors, or (b) have a cluster size less than 10. Implications of the findings and limitations of the study are discussed.  相似文献   
108.
Under the new four-year undergraduate programme, a general education framework titled ‘General University Requirements’ (GUR) has been developed and implemented since 2012/2013 at Hong Kong Polytechnic University (PolyU). To evaluate the implementation and effectiveness of the GUR in its first year, focus group interviews with students were carried out. In 13 focus groups, 62 first-year students from eight faculties/schools who took GUR subjects in 2012/2013 academic year were interviewed by trained researchers. Results showed that students generally had good perceptions of the GUR in terms of the subject content, teaching methods and the overall effectiveness of the subjects. The interactive teaching and learning initiatives adopted in GUR subjects were particularly appreciated, although students expressed minor concerns on the administration of GUR subjects. The results suggest that the first-year implementation of the GUR at PolyU was generally smooth and successful from the perspectives of the students.  相似文献   
109.
The objectives of the study were to validate a substantiated Teacher Change Beliefs Model (TCBM) and an instrument to identify critical components of teacher change beliefs (TCB) in Malaysian secondary schools. Five different pilot test approaches were applied to ensure the validity and reliability of the instrument. A total of 936 teachers from 47 high-performing secondary schools completed the survey. Structural equation modelling was applied to test the models. Exploratory factor analysis was employed to identify the underlying factors, whereas confirmatory factor analysis was applied to test the measurement models. The analysis yielded a three-factor TCBM: (1) discrepancy, (2) efficacy and (3) principal support. The results demonstrated a good fit of the model: normed χ2 = 3.156, Tucker-Lewis Fix Index = .987, Comparative Fix Index = .991 and Root Mean Square Error of Approximation = .048. The results also provided evidence for convergent validity, discriminant validity and construct reliability. The TCBM is an empirically tested model derived in a local Malaysian cultural education setting. It provides direction for practitioners in planning and designing training programmes of change management for school principals in the enhancement of TCB among teachers in schools. Besides, Teacher Change Beliefs Scale is a promising and welcome tool for both practitioners and researchers. With only nine items, it is easy to administer and not time-consuming.  相似文献   
110.
Loy Lai 《家教世界》2022,(4):10-11
作为宝爸宝妈,以下场景应该不陌生吧. 情景一 今年5岁的小宝每天都上幼儿园.早上8点,妈妈使出浑身解数把小宝叫醒后,嘱咐他把准备好的衣裤袜子换上,然后洗脸刷牙吃早餐,接着小宝妈妈忙早餐去了. 10分钟过去,妈妈进来视察,发现小宝还坐在床上发呆.好不容易把小宝打发去刷牙,又发现小宝对着镜子挤眉弄眼哼哼哈哈地刷牙,全然不知...  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