全文获取类型
收费全文 | 1592篇 |
免费 | 58篇 |
国内免费 | 19篇 |
专业分类
电工技术 | 25篇 |
综合类 | 82篇 |
化学工业 | 73篇 |
金属工艺 | 9篇 |
机械仪表 | 17篇 |
建筑科学 | 500篇 |
矿业工程 | 12篇 |
能源动力 | 13篇 |
轻工业 | 25篇 |
水利工程 | 13篇 |
石油天然气 | 1篇 |
武器工业 | 3篇 |
无线电 | 95篇 |
一般工业技术 | 96篇 |
冶金工业 | 441篇 |
原子能技术 | 12篇 |
自动化技术 | 252篇 |
出版年
2025年 | 8篇 |
2024年 | 24篇 |
2023年 | 20篇 |
2022年 | 49篇 |
2021年 | 49篇 |
2020年 | 44篇 |
2019年 | 24篇 |
2018年 | 19篇 |
2017年 | 28篇 |
2016年 | 37篇 |
2015年 | 36篇 |
2014年 | 110篇 |
2013年 | 75篇 |
2012年 | 100篇 |
2011年 | 106篇 |
2010年 | 100篇 |
2009年 | 88篇 |
2008年 | 70篇 |
2007年 | 75篇 |
2006年 | 78篇 |
2005年 | 73篇 |
2004年 | 64篇 |
2003年 | 74篇 |
2002年 | 48篇 |
2001年 | 40篇 |
2000年 | 10篇 |
1999年 | 9篇 |
1998年 | 3篇 |
1997年 | 5篇 |
1993年 | 4篇 |
1992年 | 4篇 |
1989年 | 3篇 |
1988年 | 3篇 |
1984年 | 4篇 |
1983年 | 3篇 |
1982年 | 3篇 |
1968年 | 3篇 |
1967年 | 6篇 |
1966年 | 20篇 |
1965年 | 16篇 |
1964年 | 30篇 |
1963年 | 7篇 |
1962年 | 9篇 |
1961年 | 10篇 |
1960年 | 8篇 |
1959年 | 6篇 |
1958年 | 8篇 |
1957年 | 9篇 |
1956年 | 13篇 |
1955年 | 9篇 |
排序方式: 共有1669条查询结果,搜索用时 15 毫秒
61.
绿色医院建筑评价体系的研究 总被引:1,自引:0,他引:1
绿色医院建筑是将可持续发展理念引入医院建筑领域的结果。近年来我国医院建设进入高潮,急需建立一套完整的绿色医院建筑评价体系,用来有针对性地对中国的医院建设做出科学的指导。重点对美国的医疗建筑绿色指南(GGHC)与能源与环境设计先导(LEED)以及我国《绿色建筑评价标准》与美国LEED进行分析比较,以借鉴国际先进经验,建立一套适合我国国情的绿色医院建筑评价体系。 相似文献
62.
钟铿 《制冷空调与电力机械》2010,31(3):36-38
从空调系统冷热源、空调末端、通风系统和控制等方面介绍了某大型综合医院空调设计采用的节能措施,为未来同类型医院建筑空调系统的节能设计提供一定参考。 相似文献
63.
随着信息化时代的来临,计算机网络对人们的衣食住行的影响也越来越大,这也使得计算机技术不断向各个行业渗透。如今,在医疗行业计算机技术发挥着极为重要的作用,它不仅连接着各个部门,实现信息的共享,同时也是医院领导开展管理工作的有效途径。 相似文献
64.
3 measures of response set and 5 content scales were administered to 125 schizophrenic patients and 135 college Ss. The data indicate that the Overall Agreement Score which ostensibly measures an agreeing response set also contains negative social desirability (SD). SD18 also appears to have a naysaying element in it. The results also show that truly balanced measures of acquiescence and Social Desirability might very well be orthogonal to each other and support both sets of authors' contentions that their scales are not necessarily associated with elements of the other response set. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
65.
30 schizophrenic patients and 30 psychiatric aides were required in 4 experimental tasks to change their responses to meet changing conditions. It was hypothesized that (a) schizophrenic patients are more likely than normals to continue a response after it becomes ineffective; (b) the persistence of the maladaptive response is a function of the severity of schizophrenia. As predicted, the patients persisted longer than the aides in the first learned but later maladaptive responses, and there was some evidence that degree of resistance to change was related to the severity of schizophrenia in the patient. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
66.
The relationship between social competence and self-image disparity in 20 psychiatric and 20 nonpsychiatric patients was investigated. Education, intelligence, occupation, employment history, and marital status were used as indices of social competence. Real-ideal-self and real-social-self disparity were each measured with 2 separate paper-and-pencil instruments. The predictions from a developmental framework were confirmed: (a) high competence Ss would manifest higher real-ideal disparity scores than low Ss on both instruments, (b) this difference would be greater on the instrument permitting more response differentiation, (c) the highs would have larger real-social disparity scores than the lows on the instrument allowing the greater response differentiation. This difference between groups would be less than that found for the real-ideal disparity scores. (21 ref.) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
67.
"Perceptual and motor aspects of the Bender-Gestalt Test performance were compared for 4 groups of Ss: 10 student nurses, 10 acute schizophrenic patients, 10 chronic schizophrenic patients, and 10 patients hospitalized for neurological reasons… . After the Ss had obtained equal experiences with the Bender designs by reproducing them under memory and copy conditions, a perceptual multiple-choice test was administered under memory and matching conditions. Results indicate that there are marked differences in perceptual accuracy between the 4 groups: the control population was most accurate, with the acute schizophrenic, chronic schizophrenic, and neurological patients less proficient in that order." (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
68.
2 hypotheses were tested with the Block Design subtest of the Wechsler Intelligence Scale and the Drawing Version of the Block Design Rotation Test: (1) Brain-damaged patients rotate significantly more than non-brain-damaged patients, and (2) The factors influencing rotation in the blocks test would be the same in the drawing version. Ss consisted of 20 brain-damaged patients, 25 non-brain-damaged psychiatric patients, and a control group of 25 normal persons. It was found that rotation effects in a drawing version of a task requiring the copying of designs discriminated between brain-damaged and non-brain-damaged Ss. The relative influence of the factors affecting the appearance of the rotation effect in all Ss was shown to be different in the drawing version than in the blocks version. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
69.
Tested the "levels" hypothesis that there is an inverse relationship between the degree of stimulus structure in a test and the level of personality impulse-control system being tapped by the test, for 20 normal and 20 psychiatric Ss. As predicted, an inverse relationship between pathology and stimulus structure over 5 tests (from low-high structure Draw-a-Person, Rorschach, TAT, Rotter Incomplete Sentence Blank, and Bender-Gestalt) was found for normals. Contrary to hypothesis, no such relationship appeared for psychiatric Ss. Other hypotheses that psychiatric Ss manifest more projection and more pathology than normals, and that there is a significant correlation between pathology and projection for every test for each group were confirmed. A new theory of projection of pathology as a function of the stimulus structure of tests is proposed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
70.
The present research is directed at clarifying the attitudes of the people who work with psychiatric patients. A sample of over 1000 such individuals, ranging from office and kitchen help to psychiatrists in 2 VA hospitals, filled out a specially devised attitude scale. Factor analysis isolated 5 major factors: 2 reflecting negative attitudes (one in which their difference and inferiority to normals was stressed, the other reflecting a desire to place strong social restrictions on them both during and after hospitalization); 2 positive attitude factors (one based on an almost moral sense of obligation to help unfortunates, the other on more professional attitudes towards their treatability). The 5th factor was defined by attitudes towards etiology of psychiatric illness in relation to psychological development. Clear-cut differences of opinion were at the different levels of professional training. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献