全文获取类型
收费全文 | 40945篇 |
免费 | 1613篇 |
国内免费 | 27篇 |
出版年
2020年 | 442篇 |
2019年 | 470篇 |
2018年 | 638篇 |
2017年 | 665篇 |
2016年 | 723篇 |
2015年 | 558篇 |
2014年 | 611篇 |
2013年 | 3037篇 |
2012年 | 1153篇 |
2011年 | 1258篇 |
2010年 | 754篇 |
2009年 | 737篇 |
2008年 | 1034篇 |
2007年 | 963篇 |
2006年 | 855篇 |
2005年 | 794篇 |
2004年 | 757篇 |
2003年 | 746篇 |
2002年 | 761篇 |
2001年 | 1310篇 |
2000年 | 1283篇 |
1999年 | 878篇 |
1998年 | 416篇 |
1997年 | 390篇 |
1992年 | 783篇 |
1991年 | 742篇 |
1990年 | 750篇 |
1989年 | 750篇 |
1988年 | 696篇 |
1987年 | 674篇 |
1986年 | 716篇 |
1985年 | 745篇 |
1984年 | 618篇 |
1983年 | 562篇 |
1982年 | 393篇 |
1981年 | 423篇 |
1979年 | 599篇 |
1978年 | 462篇 |
1977年 | 400篇 |
1976年 | 389篇 |
1975年 | 567篇 |
1974年 | 669篇 |
1973年 | 646篇 |
1972年 | 588篇 |
1971年 | 551篇 |
1970年 | 506篇 |
1969年 | 579篇 |
1968年 | 659篇 |
1967年 | 615篇 |
1966年 | 603篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
941.
A test of a perspective theory of geometrical illusions 总被引:1,自引:0,他引:1
942.
The analysis of metaphor 总被引:1,自引:0,他引:1
H M Voth 《Journal of the American Psychoanalytic Association》1970,18(3):599-621
943.
Nature of love--simplified 总被引:1,自引:0,他引:1
944.
A new type of multichannel olfactometer is described, and the results are given for gas chromatographical standardization of this equipment. The olfactometer keeps 24 odorous substances available for presentation, consecutively, two per trial, or combinations of the two. It produces concentrations of odorous gas in the air between 1 × l0?5 and 1 × 10?11 molecules/liter. The principle of construction is gradual dilution of an odorous gas in streaming purified air. The design provides for electronic control of stimulus sequence and response registration via punched tapes. 相似文献
945.
William E. Vandament Richard G. Burright Rollin R. Fessenden William H. Barker 《Behavior research methods》1970,2(6):290-296
Tables of sequences of two-class events are presented for use in programming psychological experiments in which behavior on trial n may be a function of the events of trials n ? 1, n ? 2, and/or n ? 3. Various factors related to schedule generation are discussed, i.e., restrictions on trial-block length which accompany sequential balance, interrelationships of trial blocks in the multiblock experiment, relationships between run length and r-tuple occurrences, and alternation behavior. Following a consideration of various methods of schedule generation for the two-class experiment, it was concluded that no method can result in schedules that possess all properties considered desirable in psychological experiments. However, the present sequences allow for sequential balance and analysis, and thus should prove useful in producing schedules in some contexts that are standard with regard to sequential influences. 相似文献
946.
M. B. Sterman J. J. Lynch M. T. Orne D. Paskewitz J. Costello N. Nicolov O. Diankov M. Popova E. Tsvetanska Robert G. Grenell J. J. Izquierdo V. H. Mark Joseph Germana N. Zill William P. Paré Joseph E. O. Newton George C. Offutt Walter Ehrlich Joseph E. D. Newton Julij Tosef J. Perez-Cruet Chester R. Wilpizeski John F. Lontz Andrew Livingston Joseph W. Cullen Samuel A. Corson Herman R. Weed Elizabeth O. Corson O. D. Murphree Paul N. Morgan Ruth Jarman J. Antal T. A. Ban J. V. Ananth H. E. Lehmann A. Ulric Moore Richard H. Barnes Wilson G. Pond 《Integrative psychological & behavioral science》1970,5(3):185-193
947.
948.
949.
T. R. G. Green P. H. Venables L. L. Iversen S. D. Iversen Martin Richards John Morton O. L. Zangwili Mark P. Haggard 《Quarterly journal of experimental psychology (2006)》1970,22(1):68-75
Encyclopaedia of Linguistics, Information and Control. Edited by A. R. Meetham with the assistance of R. A. Hudson. Oxford: Pergamon Press. 1969. Pp. xiv + 718. 300s.
The Biological Basis of Personality. By H. J. Eysenck. Springfield: Thomas. 1968. Pp. xv + 399. $18.50.
Scientific Basis of Dvug Dependence. Biological Council Symposium. Edited by H. Steinberg. London: Churchill. 1969. Pp. 429. 100s.
Minnesota Symposia on Child Psychology, Vol. 2. Edited by John P. Hill. Minneapolis: University of Minnesota Press. 1969. Pp. viii + 172.
Memory and Attention: an introduction to human information processes. By Donald A. Norman. Chichester, Sussex: John Wiley. 1969. Pp. ix + 201. 84s. (cloth); 44s. (paper). Verbal Learning and Memory: selected readings. By Leo Postman and Geoffrey Keppel. Harmondsworth: Penguin Books. 1969. Pp. 501. 12s.
Handbuch der Kinderheilkunde. Edited by H. Opitz and F. Schmidt. Rand VIII/I: Neurologie-Psychologic-Psychiatrie. Redigiert von F. Schmidt und H. Asperger. Berlin: Springer Verlag. Pp. 1060. Price DM385, S96.25.
Digital Computing. By R. S. Lehman and D. E. Bailey. London: John Wiley & Sons Ltd. 1969. Pp. xxiv + 303. 79s.
Real-Time Computers. By W. R. Uttal. New York: Harper & Row. 1968. Pp. xiv + 338. 93s. 相似文献
The Biological Basis of Personality. By H. J. Eysenck. Springfield: Thomas. 1968. Pp. xv + 399. $18.50.
Scientific Basis of Dvug Dependence. Biological Council Symposium. Edited by H. Steinberg. London: Churchill. 1969. Pp. 429. 100s.
Minnesota Symposia on Child Psychology, Vol. 2. Edited by John P. Hill. Minneapolis: University of Minnesota Press. 1969. Pp. viii + 172.
Memory and Attention: an introduction to human information processes. By Donald A. Norman. Chichester, Sussex: John Wiley. 1969. Pp. ix + 201. 84s. (cloth); 44s. (paper). Verbal Learning and Memory: selected readings. By Leo Postman and Geoffrey Keppel. Harmondsworth: Penguin Books. 1969. Pp. 501. 12s.
Handbuch der Kinderheilkunde. Edited by H. Opitz and F. Schmidt. Rand VIII/I: Neurologie-Psychologic-Psychiatrie. Redigiert von F. Schmidt und H. Asperger. Berlin: Springer Verlag. Pp. 1060. Price DM385, S96.25.
Digital Computing. By R. S. Lehman and D. E. Bailey. London: John Wiley & Sons Ltd. 1969. Pp. xxiv + 303. 79s.
Real-Time Computers. By W. R. Uttal. New York: Harper & Row. 1968. Pp. xiv + 338. 93s. 相似文献
950.
Children, 4-5 and 9-10 years old, and college-age adults were tested on two visual masking tasks. The first task required the Ss to identify whether a tachistoscopically presented bar was horizontal or vertical The second task, also using tachistoscopic presentation of stimuli, required Ss to locate a horizontal (or vertical) bar in a matrix of vertical (or horizontal) bars. In both tasks, backward masking produced greater disruption than did forward masking, and the amount of disruption induced by both backward and forward masking decreased as age increased. An Age by Masking Condition interaction was found only in the location task and reflected a much greater difference between backward- and forward-masking conditions for the youngest group than for the older groups. On the basis of these findings and other considerations, it was concluded that only in the location task, which presumably required visual search, was the speed of visual processing slower in the younger group. 相似文献