全文获取类型
收费全文 | 160篇 |
免费 | 5篇 |
国内免费 | 3篇 |
专业分类
电工技术 | 1篇 |
化学工业 | 11篇 |
金属工艺 | 2篇 |
机械仪表 | 1篇 |
建筑科学 | 6篇 |
能源动力 | 1篇 |
轻工业 | 4篇 |
水利工程 | 2篇 |
无线电 | 32篇 |
一般工业技术 | 33篇 |
冶金工业 | 19篇 |
自动化技术 | 56篇 |
出版年
2023年 | 1篇 |
2022年 | 3篇 |
2020年 | 7篇 |
2019年 | 2篇 |
2018年 | 2篇 |
2017年 | 4篇 |
2016年 | 5篇 |
2015年 | 5篇 |
2014年 | 3篇 |
2013年 | 8篇 |
2012年 | 11篇 |
2011年 | 11篇 |
2010年 | 10篇 |
2009年 | 7篇 |
2008年 | 10篇 |
2007年 | 15篇 |
2006年 | 5篇 |
2005年 | 1篇 |
2004年 | 9篇 |
2003年 | 2篇 |
2002年 | 4篇 |
2001年 | 5篇 |
2000年 | 1篇 |
1999年 | 3篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 4篇 |
1993年 | 3篇 |
1992年 | 3篇 |
1991年 | 1篇 |
1990年 | 3篇 |
1989年 | 2篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 2篇 |
1983年 | 1篇 |
1982年 | 2篇 |
1974年 | 1篇 |
1973年 | 2篇 |
1970年 | 1篇 |
排序方式: 共有168条查询结果,搜索用时 15 毫秒
51.
The authors developed a CD-ROM for use in the classroom, the computer lab, the library, or the personal computers of students and faculty. The subject of the CD is an interart study of music, art, and literature, specifically T. S. Eliot's The Waste Land. the authors trace their process of formulating the idea and conceptualizing the project. They also detail the initial stages of the project, including the time-intensive efforts of getting permissions for the materials. For the technology portion, they describe how the components were digitized, integrated, and tested. Finally, they discuss how they manufactured and marketed the product, closing with some evaluative comments.John K. Boaz is Emeritus Associate Vice President for Administrative Services and a former Director of Forensics in the Department of Communication at Illinois State University. He edited a serial for several years for the American Forensic Association and the Speech Communication Association, Championship Debates and Speeches, and he has most recently edited The Adlai E. Stevenson Memorial Lecture Series: The First Twenty five Years, 1966–1991 published by the University Press of America.Mildred M. Boaz, a modern British literature specialist, is Professor of English and Chair of the Department of English at Millikin University. She has published on T. S. Eliot in The Centennial Review and The Journal of Aesthetic Education. She was also a contributor to the Modern Language Association's volume on Approaches to Teaching Eliot's Poetry and Plays.Both are members of the T. S. Eliot Society. 相似文献
52.
Studied the effects of age-segregated hospital environments on cognitive functioning of 55 aged, male psychiatric patients. Changes in performance on mental status and responsiveness measures during the 1st 3 wk. after admission were compared for patients randomly assigned to an age-segregated custodial, age-integrated custodial, and a therapy ward. Ss placed in the age-integrated custodial ward and in the therapy ward showed significantly greater improvement in responsiveness and mental status than Ss placed in the age-segragated custodial ward. Effects of ward placement cut across all diagnostic groups. The therapeutic potential of age-integrated patient environments is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
53.
Converse Benjamin A.; Lin Shuhong; Keysar Boaz; Epley Nicholas 《Canadian Metallurgical Quarterly》2008,8(5):725
Understanding others' behavior often involves attributing mental states to them by using one's "theory of mind." We argue that using theory of mind to recognize differences between one's own perspective and another's perspective is a deliberate process of inference that may be influenced by incidental mood. Because sadness is associated with more systematic and deliberate processing whereas happiness is associated with more heuristic processing, we predicted that theory-of-mind use would be facilitated by sadness compared with happiness. Two experiments supported this prediction, demonstrating that participants were more likely to utilize knowledge about others to make inferences about their mental states when they were induced to feel sad than when they were induced to feel happy. These results provide both theoretical insight into the psychological mechanisms that govern theory of mind as well as practical insight into a common source of variability in its use. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
54.
Masoud Kayhanian Boaz D. Fruchtman John S. Gulliver Comasia Montanaro Ezio Ranieri Stefan Wuertz 《Water research》2012,46(20):6609-6624
This review interprets highway runoff characterization studies performed on different continents. The results are synthesized to discuss the historical trends, first flush effects of pollutants, pollutant form as dissolved vs. particulate, and to identify surrogate water quality parameters. The information presented in this review showed that: (1) variability has been observed in all quality parameters from each continent and among continents; (2) with a few exceptions the variability seems to be within the expected range; (3) inconsistent monitoring data as well as inconsistent quality assurance and quality control measures were reported among studies, which may be partially responsible for variability of water quality results; (4) compared with historic data, the concentration of total Pb decreased exponentially, which can mostly be credited to leaded gasoline phase-out regulation; (5) first flush effects of pollutants based on concentration have been reported consistently (however, mass first flush effects for pollutants have been reported inconsistently compared with concentration first flush effect); (6) most metal pollutants and phosphorus are present in both the particulate and dissolved forms; and (7) strong correlations were observed between TSS, TDS, TOC and iron (Fe) and 13 other constituents and water quality parameters (turbidity, O&G, TPH, DOC, TKN, EC, Cl, Cd, Cr, Cu, Ni, Pb, Zn). 相似文献
55.
农业景观具有超越生产的价值。在以色列,自圣经时代开始,橄榄园就是根植于民间传说、历史与文化的景观。如今,以色列的人口密度不断增长,导致开放景观空间和农业区的大大减少。人口压力紧随着农业技术的进步,虽然提高了生产力,两者却共同导致我们熟知和珍惜的农业景观日趋罕见,而农业景观一直以来都是以色列文化的一部分。因此,当古兰尼建筑被委托设计一座橄榄园再利用于休闲时,他们的主要目标便是保留橄榄园的气氛和形式。老露台石墙由散落在现场的石块重建,用于休憩的座椅区被设计为露台墙的一部分。石头露台墙是该地区栽种橄榄树林的典型方式。石块收集于土地清理,石头挡土墙有利于保护倾斜的土地,尤其是在表层土壤薄且珍贵的情况下。传统的做法是将石块单 相似文献
56.
Local land use regulations have been adopted to restrict population growth and urban sprawl in an attempt to prevent future problems like congestion, pollution, and loss of open space. However, when regulations become widespread in a region, it can be difficult for young workers and newcomers to find appropriate housing in the region. Because local governments may neglect the effects of their policies on the rest of the region, the resulting population size can be inefficient. We show that local adoption of housing regulations tends to over-restrict population growth when there are strong agglomeration economies in the regional production. On the other hand, when there is congestion in production, coordination among jurisdictions is undesirable if business interests are neglected. 相似文献
57.
Boaz Porat 《Circuits, Systems, and Signal Processing》1983,2(3):341-360
This paper presents a new method for estimating the coefficients of autoregressive moving-average parameters of stationary time series. The method is based on computing the sample autocorrelations of the given time series and fitting an ARMA model so as to approximate the partial autocorrelations in a least-squares sense. When the given time series are characterized by spectral zeroes near the unit circle, they tend to have relatively long sequences of nonzero partial autocorrelations; hence the new method is especially effective in such cases. This paper contains a derivation of all necessary mathematical details, as well as several numerical examples illustrating the performance. 相似文献
58.
Boaz Avitzur 《International Journal of Pressure Vessels and Piping》1994,57(3):271-287
There is a long-standing interest in developing a capability to predict the distribution of retained stresses in thick-walled tubes after the removal of an internal pressure—post-autofrettage. In this paper, four different methods of calculating such stresses are presented and compared. The methods presented are based on the following assumed yield criteria and deformation conditions: (1) Tresca's yield criterion, (2) Tresca's yield criterion × 2/√3, (3) Mises' yield criterion in plane-stress, and (4) Mises' yield criterion in plane-strain. 相似文献
59.
Reports editorial errors in the original article by T. L. Boaz and D. R. Denney (Psychology and Aging, 1993[Jun], Vol 8[2], 294–300). A short segment of text was misplaced in the Results section; the corrected text is included. (The following abstract of this article originally appeared in record 1993-42036-001.) The nature of the search of primary memory by persons with a presumptive diagnosis of mild Alzheimer's disease (dementia of the Alzheimer type [DAT]) was compared with that of normal elderly and young persons using the S. Sternberg (1966) paradigm. DAT Ss evidenced a substantial deficit in the speed of scanning in primary memory and a deficit in at least one other stage of processing. These findings are consistent with the hypothesis that the decline in memory performance evidenced by persons with DAT may be attributable to an increase in the time requirements of mnemonic processing. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
60.
The impact of promotion decisions on equity, commitment, and behavioral outcomes was examined in a field setting. Workers in a service company who submitted their candidacy for promotion to either department or division heads were compared with their noncandidate counterparts (total N?=?191). Ss completed surveys after promotion decisions were made. In addition, measures of the Ss' lateness and absence before and after the promotion were available. Data analyzed by level of position (department vs division) and promotion decision (promoted, not promoted, and control) indicated that promotions resulting from self-initiated candidacies might actually produce undesirable outcomes. Failure to get a promotion was associated with feelings of inequity, a decrease in commitment, and an increase in absenteeism; positive promotion decisions increased commitment. Theoretical and organizational implications are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献