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   21383篇
  免费   561篇
  国内免费   303篇
电工技术   148篇
技术理论   4篇
综合类   9318篇
化学工业   1145篇
金属工艺   481篇
机械仪表   643篇
建筑科学   2481篇
矿业工程   105篇
能源动力   41篇
轻工业   306篇
水利工程   209篇
石油天然气   64篇
武器工业   3篇
无线电   945篇
一般工业技术   683篇
冶金工业   2017篇
原子能技术   16篇
自动化技术   3638篇
  2024年   72篇
  2023年   178篇
  2022年   277篇
  2021年   422篇
  2020年   343篇
  2019年   270篇
  2018年   194篇
  2017年   177篇
  2016年   333篇
  2015年   511篇
  2014年   1387篇
  2013年   1091篇
  2012年   1446篇
  2011年   1724篇
  2010年   1659篇
  2009年   1721篇
  2008年   1467篇
  2007年   1348篇
  2006年   1344篇
  2005年   1136篇
  2004年   992篇
  2003年   1019篇
  2002年   869篇
  2001年   487篇
  2000年   456篇
  1999年   273篇
  1998年   123篇
  1997年   76篇
  1996年   62篇
  1995年   48篇
  1994年   45篇
  1993年   26篇
  1992年   29篇
  1991年   22篇
  1990年   22篇
  1989年   21篇
  1988年   38篇
  1987年   33篇
  1986年   23篇
  1984年   19篇
  1982年   20篇
  1966年   19篇
  1964年   33篇
  1963年   28篇
  1959年   26篇
  1958年   27篇
  1957年   29篇
  1956年   22篇
  1955年   34篇
  1954年   25篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
981.
The causes of learning disorders are numerous and, although some learning difficulties can be remedied by special educative measures only, many such problems, especially when they are more severe represent a disorder of the total personality. In such a case a diagnosis must be established by a team of different specialists. After a careful evaluation a treatment programme is planned and a choice is made among various specific therapies. Very often the treatment of learning disorders must take into account more or less important emotional factors. A combined approach of psychotherapy and remedial teaching is sometimes essential to attain some success in helping a child. Such a combination of treatments requires close cooperation between psychotherapist and special teacher. Their respective roles have to be frequently clarified and both gain in understanding of the child needs through mutual communication. Following the evolution of a child from two points of view demonstrates more and more clearly how the intellectual processes necessary for learning are subject to inhibiting patterns that are observed in neurotic defense mechanisms against emotional conflicts. In some instances this practical knowledge would be necessary to understand why a child does not profit from remedial measures and to determine how new techniques are to be used to help him. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
982.
I read with chagrin Donald T. Campbell's (see record 1990-55812-001) comments on my article on the preparation of researchers in psychology. In "Thesis-Antithesis" (American Psychologist, 1966, 21, 781-787; see record 1967-00924-001), I examined some hidden assumptions upon which the thesis requirement rests and attempted to bring into relationship recent ideas in epistemology with earlier recommendations of the Education and Training Board. I suggested that if the future face of psychological investigations is to be more like search and less like research, we shall have to recapture and invest with meaning the personal qualities in the advisory relationship, often lost sight of under the pressure of academic requirements. I claimed that some degree requirements discourage the personal and professional evolution of the future generation of researchers. Campbell's criticism that I recommended the substitution of research assistantships for the thesis requirement leaves me feeling like the guest in a famous restaurant. The waiter wished to know how the guest would like his tournedos bordelaise. "A center cut and tenderloin portion, by all means, quite well done on the outside, then slightly pink, and, finally, seigneuse in the middle, not a very large portion, just right, with some gently braised mushrooms on the side, and only a touch of sauce," said the guest. The waiter nodded with approval, then turned into the kitchen with the usual refrain: "T-bone coming up." What can one do? (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
983.
在高教改革中切实加强教研室的建设   总被引:2,自引:0,他引:2  
就高等教育改革中如何加强教研室建设进行了一些思考,对加强教研室建设的作用和意义进行了阐述,提出了加强教研室建设的具体措施。  相似文献   
984.
发展宁波高等教育全面建设小康社会   总被引:1,自引:1,他引:0  
本文认为宁波市适度发展高等教育是基本实现现代化、推进高等教育大众化和国际化的客观需要,改革开放以来,宁波市高等教育已形成了"三多"特点,要实现宁波高等教育可持续发展战略,必须要做好"发展、改革、提高"三篇文章.  相似文献   
985.
To be successful a commercial engineering enterprise must harmonize the different organizational functions: marketing, finance, design, procurement and manufacture.Of these, design is the least understood and often has too little influence in the corporate decision-making circle.This paper suggests that the activities of design and general management have much in common, and that realization of this would go far towards achieving proper balance of the top management team.  相似文献   
986.
Schlosberg's dimensional theory of emotion, including the dimension of tension-sleep, is tested to compare results obtained previously with American college students with those obtained in this study using Greek Ss. 15 Greek villagers and 15 college students in Athens comprised the 2 experimental groups which differed from each other in educational level and in lifetime movie attendance. The data indicate that Schlosberg's conclusions are now valid for non-Western groups as well as Western. Furthermore an emotion solid can be plotted from data collected by making use of Schlosberg's procedure, but the shape of the solid is not the same as that previously presented by Schlosberg. 18 references. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
987.
"The stated purposes of the conference were: to ascertain present practices and goals of psychologists in medical schools, to determine how these practices and goals are integrated into the total medical school scene, and to discuss how these practices and goals might be improved both within the discipline and in relation to other disciplines." (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
988.
高职职业道德教育应注重"三性"   总被引:1,自引:0,他引:1  
在高职生中开《职业道德》课应注意针对性、层次性和实践性。  相似文献   
989.
论述了建立班级领导核心的重要性,分析了班主任任命班干部的弊端和竞争选举的优点,介绍了通过"竞争机制"建立班级领导核心的方法与步骤,总结了该方法的成功经验。  相似文献   
990.
吉祥作为中国装饰艺术的主题,表达了人类的普遍情感—祈求生命兴旺,渴望美好现实。中国的装饰艺术,无论是从题材、纹样还是图案色彩,都是以吉祥为主题,这从一个侧面反映了装饰至善至美的本质。同时,装饰现象又是人类文化的产物,是文化的一种表现方式,即人类艺术化地塑造文化品格的形式,本文就是在这样的语意背景下,来阐释传统装饰艺术的吉祥特征的。  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