全文获取类型
收费全文 | 2130篇 |
免费 | 31篇 |
国内免费 | 13篇 |
专业分类
电工技术 | 4篇 |
综合类 | 293篇 |
化学工业 | 13篇 |
金属工艺 | 11篇 |
机械仪表 | 12篇 |
建筑科学 | 58篇 |
矿业工程 | 3篇 |
能源动力 | 1篇 |
轻工业 | 20篇 |
水利工程 | 5篇 |
石油天然气 | 1篇 |
无线电 | 30篇 |
一般工业技术 | 37篇 |
冶金工业 | 1541篇 |
原子能技术 | 2篇 |
自动化技术 | 143篇 |
出版年
2020年 | 11篇 |
2019年 | 9篇 |
2018年 | 13篇 |
2017年 | 12篇 |
2016年 | 23篇 |
2015年 | 16篇 |
2014年 | 23篇 |
2013年 | 30篇 |
2012年 | 42篇 |
2011年 | 153篇 |
2010年 | 161篇 |
2009年 | 161篇 |
2008年 | 138篇 |
2007年 | 148篇 |
2006年 | 166篇 |
2005年 | 117篇 |
2004年 | 122篇 |
2003年 | 115篇 |
2002年 | 99篇 |
2001年 | 76篇 |
2000年 | 24篇 |
1999年 | 12篇 |
1998年 | 5篇 |
1997年 | 5篇 |
1993年 | 7篇 |
1992年 | 10篇 |
1990年 | 5篇 |
1989年 | 10篇 |
1988年 | 5篇 |
1987年 | 9篇 |
1986年 | 10篇 |
1985年 | 10篇 |
1982年 | 7篇 |
1971年 | 6篇 |
1969年 | 5篇 |
1968年 | 5篇 |
1967年 | 8篇 |
1966年 | 19篇 |
1965年 | 27篇 |
1964年 | 37篇 |
1963年 | 21篇 |
1962年 | 18篇 |
1961年 | 33篇 |
1960年 | 33篇 |
1959年 | 29篇 |
1958年 | 20篇 |
1957年 | 22篇 |
1956年 | 28篇 |
1955年 | 58篇 |
1954年 | 10篇 |
排序方式: 共有2174条查询结果,搜索用时 15 毫秒
1.
Iris Bakker Theo van der Voordt Peter Vink Jan de Boon Conne Bazley 《Color research and application》2015,40(1):62-71
Studies on color preferences are dependent on the topic and the relationships with personal characteristics, particularly personality, but these are seldom studied in one population. Therefore a questionnaire was collected from 1095 Dutch people asking for color preferences about different topics and relating them to personal characteristics. Color preferences regarding different topics show different patterns and significant differences were found between gender, age, education and personality such as being technical, being emotional or being a team player. Also, different colors were mentioned when asked for colors that stimulate to be quiet, energetic, and able to focus or creative. Probably, due to unconsciousness of contexts, many people had no color preference, a result that in the literature seldom is mentioned. Blue was the overall favorite color; however, most males chose for blue (25%) while most females had no color preference (18%). Black was the overall favorite color for clothing, mainly chosen by females (40%), while males primarily chose blue (27%). For building interiors subjects preferred white. For moods, subjects preferred white for being quiet or being able to focus, red for being energetic and had no color preference for being creative. It is concluded that color preferences are dependent upon the topic, and personal characteristics. The findings are important for architects, interior designers, fashion designers and product designers to have a basic idea of preferred colors for different objects by different types of people. © 2013 Wiley Periodicals, Inc. Col Res Appl, 40, 62–71, 2015 相似文献
2.
Sumiyana Sumiyana Sriwidharmanely Sriwidharmanely 《Behaviour & Information Technology》2020,39(10):1079-1093
ABSTRACT This research investigates the role of users’ proactive personality when they mitigate the adverse impacts of ICT's (information and communication technologies’) technostress in an experimental setting. Further, this study examines genuinely two types of individuals’ proactive personality, i.e. confront and transform. Both types can handle ICT's technostress creators by different attitudes and behaviours. This article contributes to a novelty by inducing chaos theory. This inducement laid in the experimental setting that the users had been in a chaotic situation. Results of this research show that users’ proactive personality mitigates the negative impact of ICT's technostress on their performance and satisfaction. This study found that the user's proactive personality, rested in a chaotic situation, does mitigate greatly. This research finds that users’ performance and satisfaction are higher to the proactive personality verging to the transform than that of confront. It implies that information system managers should consider the ICT user's characteristics. Besides, it means that ICT's developer should make users do their innovativeness. 相似文献
3.
对我国大学生在创造力培养方面存在的问题和原因进行了分析 ,指出智力教育、素质教育、个性教育和实践教育是当代大学生创新意识培养的四个重要环节。论述了重视智力教育是培养创新意识扎实的基础 ;加强素质教育是培养浓厚创新意识的氛围 ;强化个性教育是激发培养创新意识的内力 ;注重实践教育是探索培养创新意识的新思路 相似文献
4.
5.
以西北大学长安校区的学生公寓为例,通过切身感受,提出现代化学生公寓中存在的几个细节问题,以完善学生公寓设计,从而为安全防范、人性关怀和节约能源做贡献。 相似文献
6.
介绍了山西农大学生食堂的设计原则和方案,重点阐述了现代公共建筑功能,空间、立面的协调统一,指出该设计打破了以往建筑设计的单调性,使建筑更加富有动感和时代感,给学生创造了良好的生活环境。 相似文献
7.
介绍了高校学生宿舍用电负荷的特点,并对电气设计节能的原则进行了阐述,从变压器的选择、计量方式、配电设计、照明节能等方面论述了高校学生宿舍电气节能的一些具体措施,为高校学生宿舍的电气设计提供参考。 相似文献
8.
9.
中国已步入生态文明建设的新时期,美丽中国和美丽乡村建设是生态文明体系构建的重要组成部分,也是生态文明理论指导下的实践载体。新时期乡村景观的内涵、构成与特征已发生深刻变化,维护乡村景观地方性特征与性格是未来乡村规划的重要途径和共同愿景,而识别与评价乡村景观特征与性格的关键在于其表征体系的构建。基于新时期乡村景观的认知,以景观C-3P理论体系为基础框架建立了一套融合时空特征的多要素、多尺度、多维度的景观特征与性格表征体系。景观要素决定了景观环境的语境特征,景观要素表征是对要素单体属性信息的直观描述;景观特征表征是融合景观空间格局、景观空间过程、景观空间感知3个维度的完整表达;景观性格表征是对各类景观特征在景观空间中相互作用所呈现出的效用与效应的典型刻画。通过对表征体系中关键指标的测度与评价可以揭示出乡村景观空间的整体特征与地方性格,以此作为乡村景观规划与管理的重要技术支撑。 相似文献
10.
Computational personality recognition from Facebook text: psycholinguistic features,words and facets
Wesley R. dos Santos Ricelli M. S. Ramos 《New Review of Hypermedia and Multimedia》2019,25(4):268-287
ABSTRACTAdvances in the Natural Language Processing (NLP) and machine learning fields have led to the development of automated methods for the recognition of personality traits from text available from social media and similar sources. Systems of this kind exploit the close relation between lexical knowledge and personality models – such as the well-known Big Five model – to provide information about the author of an input text in a non-intrusive fashion, and at a low cost. Although now a well-established research topic in the field, the computational recognition of personality traits from text still leaves a number of research questions worth further exploration. In particular, this paper attempts to shed light on three main issues: (i) whether we may develop psycholinguistics-motivated models of personality recognition when such knowledge sources are not available for the target language under consideration; (ii) whether the use of psycholinguistic knowledge may be still superior to contemporary word vector representations; and (iii) whether we may infer certain personality facets from a corpus that does not explicitly convey this information. In this paper these issues are dealt with in a series of individual experiments of personality recognition from Facebook text, whose initial results should aid the future development of more robust systems of this kind. 相似文献