全文获取类型
收费全文 | 2459篇 |
免费 | 49篇 |
国内免费 | 22篇 |
专业分类
电工技术 | 17篇 |
综合类 | 467篇 |
化学工业 | 26篇 |
金属工艺 | 12篇 |
机械仪表 | 15篇 |
建筑科学 | 150篇 |
矿业工程 | 16篇 |
轻工业 | 29篇 |
水利工程 | 17篇 |
石油天然气 | 8篇 |
武器工业 | 5篇 |
无线电 | 19篇 |
一般工业技术 | 97篇 |
冶金工业 | 1535篇 |
原子能技术 | 3篇 |
自动化技术 | 114篇 |
出版年
2022年 | 15篇 |
2021年 | 23篇 |
2020年 | 20篇 |
2019年 | 21篇 |
2018年 | 15篇 |
2017年 | 18篇 |
2016年 | 16篇 |
2015年 | 26篇 |
2014年 | 62篇 |
2013年 | 69篇 |
2012年 | 88篇 |
2011年 | 146篇 |
2010年 | 154篇 |
2009年 | 146篇 |
2008年 | 123篇 |
2007年 | 165篇 |
2006年 | 151篇 |
2005年 | 164篇 |
2004年 | 141篇 |
2003年 | 153篇 |
2002年 | 136篇 |
2001年 | 90篇 |
2000年 | 37篇 |
1999年 | 18篇 |
1997年 | 9篇 |
1996年 | 13篇 |
1995年 | 10篇 |
1990年 | 9篇 |
1988年 | 12篇 |
1987年 | 15篇 |
1985年 | 8篇 |
1984年 | 9篇 |
1981年 | 8篇 |
1979年 | 9篇 |
1971年 | 13篇 |
1970年 | 13篇 |
1968年 | 8篇 |
1966年 | 14篇 |
1965年 | 50篇 |
1964年 | 26篇 |
1963年 | 14篇 |
1962年 | 23篇 |
1961年 | 20篇 |
1960年 | 15篇 |
1959年 | 24篇 |
1958年 | 17篇 |
1957年 | 23篇 |
1956年 | 18篇 |
1955年 | 24篇 |
1954年 | 23篇 |
排序方式: 共有2530条查询结果,搜索用时 812 毫秒
71.
思想政治教育在培养大学生就业良好心理素质中的作用 总被引:1,自引:0,他引:1
何海燕 《重庆理工大学学报(自然科学版)》2006,20(10):97-98,167
良好的心理素质对于大学生求职就业是十分重要的,而思想政治教育在培养大学生求职过程中的自信心、坚忍不拔的进取心、对环境主动适应的能力、良好的挫折承受能力等方面都有着重要的作用。 相似文献
72.
73.
顾春红 《武汉冶金管理干部学院学报》2005,15(2):48-50
近年来,成教英语口语教学中存在诸多问题:生源上看,成教学生英语水平参差不齐,且整体英语水平较低,以致学习上产生心理障碍;教学上看,以教师为中心的传统教学模式,以及成教英语口语班级的容量过大,使学生的语言交际能力难以得到提高。要提高英语口语教学,必须找到切实可行的途径。从加强学生语言基本功着手,培养学生的语感;加强听力训练,增加语言的输入和储备。在教学实践中,正确对待学生的错误,帮助学生排除心理障碍,树立信心。努力营造以学生为中心的课堂教学模式,采用集体问答和学习二人组的形式,有创造性地进行句型练习,从而提高大班的英语口语教学效率。 相似文献
74.
The mapping of the human genome has reawakened interest in the topic of race and genetics, especially the use of genetic technology to examine racial differences in complex outcomes such as health and intelligence. Advances in genomic research challenge psychology to address the myriad conceptual, methodological, and analytical issues associated with research on genetics and race. In addition, the field needs to understand the numerous social, ethical, legal, clinical, and policy implications of research in this arena. Addressing these issues should not only benefit psychology but could also serve to guide such thought in other fields, including molecular biology. The purpose of this special issue is to begin a discussion of this issue of race and genetics within the field of psychology. Several scholars who work in the fields of genetics, race, or related areas were invited to write (or had previously submitted) articles sharing their perspectives. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
75.
Controversies are rampant in contemporary psychology concerning the appropriate method for observing consciousness and the role inner experience should play in psychological theorizing. These conflicting orientations reflect, in part, methodological differences between natural science and human science interpretations of psychology. Humanistic psychology and philosophical phenomenology both employ a human science approach to psychology that seeks to explain behavior in terms of a person's subjective existence. Maslow's and Heidegger's formulations are both fulfillment theories in that they specify moral values that suggest how life ought to be lived. Natural science methodology rejects the possibility that moral imperatives can be validated, whereas human science methodology allows phenomenological convictions to justify recommendations about a fulfilled life and a good society. The social role of psychology is analyzed within the framework of phenomenological convictions and scientific truth. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
76.
The authors surveyed 347 public sector employees on 4 measurement occasions to investigate the conceptual distinctiveness of the psychological contract and perceived organizational support (POS) and how they are associated over time. Results support the distinctiveness of the 2 concepts. In terms of their interrelationships over time, by drawing on psychological contract theory the authors found little support for a reciprocal relationship between POS and psychological contract fulfillment. Under an alternative set of hypotheses, by drawing on organizational support theory and by separating psychological contract fulfillment into its 2 components (perceived employer obligations and inducements), the authors found that perceived employer inducements were positively related to POS, which, in turn, was negatively related to perceived employer obligations. The results suggest that POS and the components of psychological contract fulfillment are more important in predicting organizational citizenship behavior than psychological contract fulfillment. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献
77.
Problem solving and social support, as different styles of coping with intergenerational family conflict, were examined among 86 Hmong American college students. Problem solving and social support were hypothesized to differentially moderate the effects of family conflict on psychological adjustment. Furthermore, the effects of attributions of blame on the adjustment of Hmong American college students were examined. Results indicate that social support buffered and problem solving enhanced the negative effects of family conflict on symptoms of distress but not on affect. Additionally, there were significant interaction effects between family conflict and self-blame on distress. Specifically, students who were more likely to blame themselves reported higher levels of distress. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
78.
Postcopulatory competition between males, in the form of sperm competition, is a widespread phenomenon in many animal species. The extent to which sperm competition has been an important selective pressure during human evolution remains controversial, however. The authors review critically the evidence that human males and females have psychological, behavioral, and physiological adaptations that evolved in response to selection pressures associated with sperm competition. The authors consider, using evidence from contemporary societies, whether sperm competition is likely to have been a significant adaptive problem for ancestral humans and examine the evidence suggesting that human males have physiological and psychological mechanisms that allow for "prudent" sperm allocation in response to variations in the risk of sperm competition. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
79.
Scientific publications tend to be forgotten quickly. A few works, however, are still cited 100 years and more after their publication. The author used bibliometric methods to compare "hits" (works noticed by the scientific community soon after their publication) with "missed signals" (works that went unnoticed until much later) by investigating 2 psychological journals founded in the 1890s: Zeitschrift für Psychologie and Psychological Review. All articles that were published in either of these journals up to 1920 and cited more than 25 times in the Web of Science up to the year 2000 were considered for inclusion in the analysis. It emerged that hits corresponded more closely to the focus of scientific attention at the time of publication than missed signals. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
80.
Ferris Patricia A.; Sinclair Christina; Kline Theresa J. 《Canadian Metallurgical Quarterly》2005,10(3):225
In a cross-sectional sample of 428 employees, the job demand-control-support and effort-reward imbalance job stress models were amalgamated and expanded to include modifiable risk factors and noncontrollable genetic factors related to cardiovascular disease (CVD) risk. With structural equation modeling, the constructs of lack of job resilience, lack of personal resilience, and job demand were used to examine how employer and employee factors related to psychosomatic strain and risk indicators of CVD. Negative perception of job demand predicted perception of lack of job resilience but not lack of personal resilience. Lack of job and personal resilience predicted strain. Women reported greater strain than men. CVD risk was predicted by strain, age, sex, and family history. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献