全文获取类型
收费全文 | 237548篇 |
免费 | 3126篇 |
国内免费 | 3331篇 |
专业分类
教育 | 179199篇 |
科学研究 | 21619篇 |
各国文化 | 330篇 |
体育 | 14235篇 |
综合类 | 14891篇 |
文化理论 | 151篇 |
信息传播 | 13580篇 |
出版年
2024年 | 33篇 |
2023年 | 382篇 |
2022年 | 1630篇 |
2021年 | 3051篇 |
2020年 | 4099篇 |
2019年 | 3104篇 |
2018年 | 1835篇 |
2017年 | 1800篇 |
2016年 | 2330篇 |
2015年 | 5219篇 |
2014年 | 13706篇 |
2013年 | 13974篇 |
2012年 | 18410篇 |
2011年 | 19815篇 |
2010年 | 14349篇 |
2009年 | 13300篇 |
2008年 | 15613篇 |
2007年 | 19387篇 |
2006年 | 18808篇 |
2005年 | 16702篇 |
2004年 | 14513篇 |
2003年 | 12757篇 |
2002年 | 10219篇 |
2001年 | 8110篇 |
2000年 | 4671篇 |
1999年 | 1958篇 |
1998年 | 891篇 |
1997年 | 758篇 |
1996年 | 650篇 |
1995年 | 366篇 |
1994年 | 348篇 |
1993年 | 255篇 |
1992年 | 209篇 |
1991年 | 128篇 |
1990年 | 106篇 |
1989年 | 58篇 |
1988年 | 38篇 |
1987年 | 12篇 |
1986年 | 6篇 |
1985年 | 63篇 |
1984年 | 56篇 |
1983年 | 37篇 |
1982年 | 48篇 |
1981年 | 39篇 |
1980年 | 11篇 |
1979年 | 24篇 |
1978年 | 39篇 |
1977年 | 42篇 |
1976年 | 35篇 |
1957年 | 10篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
81.
AbstractThe Program for Cooperative Cataloging (PCC) has formal relationships with the Library of Congress (LC), Share-VDE, and Linked Data for Production Phase 2 (LD4P2) for work on Bibliographic Framework (BIBFRAME), and PCC institutions have been very active in the exploration of MARC to BIBFRAME conversion processes. This article will review the involvement of PCC in the development of BIBFRAME and examine the work of LC, Share-VDE, and LD4P2 on MARC to BIBFRAME conversion. It will conclude with a discussion of areas for further exploration by the PCC leading up to the creation of PCC conversion specifications and PCC BIBFRAME data. 相似文献
82.
1926年4月27日,因无法忍受日本资本家的残酷压榨和剥削,大连福岛纺织株式会社1000余名工人举行了声势浩大的罢工。罢工过程中,日本资本家采取了种种惨无人道的压迫手段逼迫工人复工。在中国共产党的领导下,工人们团结一致,坚定信念,最终取得罢工斗争的胜利,充分展示了中国工人阶级的强大力量,而中国共产党的领导对此次罢工的胜利起到了决定性的作用。 相似文献
83.
非物质音乐文化遗产是一个地区历史进程中风土人情的体现,是当地人民在生产生活中的文化结晶,它凝聚了中国千百年来的历史,是中国非物质文化遗产的重要组成部分。随着社会的不断发展,非物质音乐文化遗产的表现形式与现代审美之间的距离越来越大,直接导致非物质音乐文化遗产的传承面临断层。由此,对非物质音乐文化遗产的保护与传承工作迫在眉睫。本文探讨了应用现代声像技术开展非物质音乐文化遗产的保护工作,希望为传统音乐文化遗产的保护与传承提供一些有价值的参考。 相似文献
84.
Qianqian Zhou Tze Ping Loh Tony Badrick Chun Yee Lim 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2021,31(2)
IntroductionIt is unclear what is the best strategy for applying patient-based real-time quality control (PBRTQC) algorithm in the presence of multiple instruments. This simulation study compared the error detection capability of applying PBRTQC algorithms for instruments individually and in combination using serum sodium as an example.Materials and methodsFour sets of random serum sodium measurements were generated with differing means and standard deviations to represent four simulated instruments. Moving median with winsorization was selected as the PBRTQC algorithm. The PBRTQC parameters (block size and control limits) were optimized and applied to the four simulated laboratory data sets individually and in combination.ResultsWhen the PBRTQC algorithm were individually optimized and applied to the data of the individual simulated instruments, it was able to detect bias several folds faster than when they were combined. Similarly, the individually applied algorithms had perfect error detection rates across different magnitudes of bias, whereas the error detection rates of the algorithm applied on the combined data missed smaller biases. The performance of the individually applied PBRTQC algorithm performed more consistently among the simulated instruments compared to when the data were combined.DiscussionWhile combining data from different instruments can increase the data stream and hence, increase the speed of error detection, it may widen the control limits and compromising the probability of error detection. The presence of multiple instruments in the data stream may dilute the effect of the error when it only affects a selected instrument. 相似文献
85.
沈文熹 《体育科技文献通报》2020,(4):87-88
"人本主义"是素质教育改革持续推进的重要教学理念,对于当前高校开展公共体育课程教学改革工作具有积极意义。本文细致分析了"人本主义"对于高校公共体育教学改革的意义,重点阐述了高校公共体育课程教学改革过程中存在着的不足,并提出了一些科学有效的公共体育教学改革策略,为全面有效提升高校公共体育教学水平提供一定参考。 相似文献
86.
本文以可持续发展为视角,阐述了可持续发展视角下全民健身服务体系内涵。利用文献资料法、实地考察法及专家访谈法,对可持续发展视角下全民健身服务体系发展现状进行了简单分析。进一步探究了可持续发展视角下全民健身服务体系建设路径,以期为可持续发展视角下全民健身服务体系建设提供有效的借鉴。 相似文献
87.
Karen E. Mosby 《Religious education (Chicago, Ill.)》2020,115(3):304-314
AbstractHistorically, Blacks have out of necessity prioritized survival in educating their younger generations for existence in the racially hostile and divided context of the U.S. This education and religious education has occurred formally and informally in homes, schools, community organizations, and in congregations. This paper examines three aspects of survival: survival and emancipatory education, survival and justice, and survival with emerging Black generations. Three examples will be offered that highlight each aspect of survival. The examples will demonstrate how education generally and religious education in particular have undergirded pedagogies of the sacred for the survival of Black life. 相似文献
88.
SeYun Park Erin Reifsteck Diane L. Gill 《Measurement in physical education and exercise science》2019,23(2):110-117
In this study, we examined the factor structure and reliability of the Korean Quality of Life (KQoL) survey and compared the KQoL survey to both the World Health Organization Quality of Life-Brief Version (WHOQOL-BREF) and the Satisfaction with Life Scale (SWLS). We also assessed associations between KQoL scores and physical activity (PA) participation. Participants were 557 (male = 281, female = 276) healthy Korean adults with ages between 18 and 71 years (M = 33.2, SD = 14.2). Results of confirmatory factor analyses confirmed the 7-subscale model and indicated acceptable values supporting convergent validity (χ2 = 1,678.758, df = 443, p < .001, RMSR = .045, RMSEA = .071, TLI = .880, CFI = .892). Correlations of KQoL subscales with similar subscales of WHOQOL-BREF and with SWLS supported concurrent validity. Results confirm that the KQoL survey can assess multidimensional aspects of quality of life (QoL), including spiritual, physical, social, and psychological. KQoL scores were positively related to PA participation, in line with previous research supporting the positive association of PA with QoL. 相似文献
89.
Transitioning into faculty roles can be a challenging experience. Responsibilities related to teaching, research, and service can be difficult to balance, and mismatch between personal preferences for work focus and instructional expectations can be problematic. This is particularly true of visiting assistant professors who want to work toward tenure-track positions, but whose current job focus is on teaching. Through transformative learning theory and employing the methodologies of self-study, we sought to understand the experiences of Kevin, the second author and a first-year visiting assistant professor. We draw data from Kevin's reflective journal and discussions between Kevin and his critical friend, Jim. Themes included (a) becoming an academic, (b) a hard-wired disposition toward work, and (c) influence of the VAP on emotional and personal health. Results are discussed through the lens of transformative learning theory and focus on Kevin's growth during his year as a visiting assistant professor. 相似文献
90.
鉴于在当前轮机模拟器中油水分离器控制模块缺少含油质量分数的仿真、报警记录和参数的存储以及人机交互界面的设计等功能,通过分析RWO油水分离器的工作原理和运行逻辑,提出一种新型嵌入式油水分离器仿真模块。根据模块的功能需求,选取STM32F103xx为主芯片,W5100为网络芯片,通过Altium Designer设计16DI8DO4AI印制电路板(printed circuit board,PCB)。进行嵌入式操作系统μC/OS-II的裁剪和移植,根据所使用的模块对板载外设库进行初始化,基于运行逻辑进行多任务程序设计。试验表明,嵌入式油水分离器控制模块能够实现含油质量分数的采集,适时触发含油量超限报警并同步更新报警信息和阀位,用TFT液晶屏能够实现对参数值和运行状态的实时显示。该模块具有很高的应用价值和良好的可扩展性。 相似文献