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Pearce John M.; George David N.; Haselgrove Mark; Erichsen Jonathen T.; Good Mark A. 《Canadian Metallurgical Quarterly》2005,119(5):1316
Pigeons (Columba livia) were trained with a spatial structural discrimination, which was based on the spatial relationship among the components of a pattern, and a feature-binding structural discrimination, which was based on how different visual features within a pattern were combined. Neither discrimination was impaired by damage to the hippocampus and area parahippocampalis. The lesions impaired performance on a spatial working memory and a spatial reference memory task in open field. The results indicate an intact hippocampus is not essential for the solution of structural discriminations in pigeons and the hippocampus is important for processing some types of spatial information--that used in navigation, but not other types--that used in spatial structural discriminations. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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板翅式全热交换器运行条件对性能影响的研究 总被引:4,自引:1,他引:4
对板翅式全热交换器在不同运行条件下的性能进行了实验研究,分析了性能参数和运行参数之间的关系,指出了风量与阻力损失、空气温湿度差与换热效率的关系. 相似文献
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研究了污水处理厂三种常用碳源-乙酸、乙酸钠和葡萄糖对污水处理厂反硝化作用的影响。实验结果表明使用这三种碳源时,对污水处理厂在反硝化过程中均无明显的亚硝酸盐氮累积。去除单位质量硝酸盐氮所需的乙酸质量最少,葡萄糖最高。乙酸、乙酸钠和葡萄糖三种碳源对反硝化速率的表现为乙酸>乙酸钠>葡萄糖。使用乙酸和乙酸钠作为碳源时,会导致出水pH值升高;而使用葡萄糖时则表现为pH值降低。 相似文献
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David Pearce C. A. Nash Patricia Fairbrother Harry Edwards J. Nelson Norman P. Brimblecombe 《The International journal of environmental studies》2013,70(1-2):143-151
RESOURCES: ENVIRONMENT AND POLICY, by John Fernie and Alan Pitkethly, Harper and Row, London, 1985, 338 pp. (#bp12.95, paperback) THE ECONOMICS OF FORESTRY AND NATURAL RESOURCES, by Per‐Olov Johansson and Karl‐Gustaf Lofgren, Basil Blackwell, Oxford, 1985, 292 pp. (#bp29.50, hardback only) ENVIRONMENTAL PROTECTION: STANDARDS, COMPLIANCE AND COSTS, edited by T. J. Lack, J. Wiley &; Son, Chichester, 1984, 329 pp. (#bp30, hardback) ENVIRONMENT AND ENFORCEMENT: REGULATION AND THE SOCIAL DEFINITION OF POLLUTION, by K. Hawkins, Clarendon Press, Oxford, 1984, 253 pp. (#bp15 hardback; #bp6.95, paperback) ENVIRONMENTAL POLICY, VOLUME 1: ELEMENTS OF ENVIRONMENTAL ANALYSIS, by George Tolley, Philip Graves and Glenn Blomquist, Ballinger, Cambridge, Mass, and Harper and Row, London, 1981. (#bp27.50, hardback) ENVIRONMENTAL POLICY, VOLUME 4: SOLID WASTES, by George Tolley, Jospeh Havlicek and Robert Fabian, Ballinger, Cambridge, Mass. and Harper and Row, London, 1985. (#bp44.00, hardback) World Health Organisation, ENVIRONMENTAL POLLUTION CONTROL IN RELATION TO DEVELOPMENT, World Health Organisation, Geneva, Technical Report Series, 718, 1985, 63 pp. TRANSPORT IS FOR PEOPLE: NINTH INTERNATIONAL SYMPOSIUM ON THEORY AND PRACTICE IN TRANSPORT ECONOMICS, European Conference of Ministers of Transport, 1983, Paris (#bp15.00) RECREATION MANAGEMENT AND PRICING, by A. G. Bovaird, M. J. Tricker and R. Stoakes, Gower Press, Aldershot, 1984, 182 pp. (#bp15, hardback) URBAN LAND AND SHELTER FOR THE POOR, by Patrick McAuslan, Earthscan#shInternational Institute for Environment and Development, London, 1985, 145 pp. CARING FOR THE UNEMPLOYED. Prepared for the Association of Metro‐polital Authorities by Susan Balloch, Chris Hume, Brian Jones and Peter Westland. Publishers: Bedford Square Press, London, 1985, for the National Council for Voluntary Organisations. THE LONG‐TERM UNEMPLOYED. ACTION FOR A FORGOTTEN MILLION, by Peter Ashby (Head, NVCO Policy Analysis Unit). An NCVO Policy Discussion document, Bedford Square Press, London (1985). ANTHROPOGENIC COMPOUNDS: Volume 3 Part C of The Handbook of Environmental Chemistry, edited by O. Hutzinger, Springer‐Verlag, Germany, 248 pp. 1986. (DM 188.00) HEAVY METALS IN NATURAL WATERS: APPLIED MONITORING AND IMPACT ASSESSMENT, by James W. Moore and S. Ramamoorthy, Springer‐Verlag, U.S.A. and Germany, viii #pl 268 pages, index, 1984. (DM 108.00) DESTRUCTION AND DISPOSAL OF PCBs BY THERMAL AND NON‐THERMAL METHODS, by D. G. Ackerman, L. L. Scinto, P. S. Bakshi, R. G. Delumyea, R. J. Johnson, G. Richard, A. M. Takata and E. M. Sworzyn. Noyes Data Corporation, Park Ridge, New Jersey, 1983, xiv #pl 417 pages (no index). (#dl48.00) ELECTROSTATIC PRECIPITATOR MANUAL (Pollution Technology Review No. 91), by Jack R. McDonald and Alan H. Dean, Noyes Data Corporation, U.S.A., 1982. (#dl48.00) PATTY'S INDUSTRIAL HYGIENE AND TOXICOLOGY, edited by Lewis J. Cralley and Lester V. Cralley, Volume 3 (2nd Edition)—Theory and Rationale of Industrial Hygiene Practice: (i) Volume 3A—The Work Environment (#bp97.20); (ii) Volume 3B—Biological Responses (#bp92.00) J. Wiley and Sons Ltd., Chichester U.K. 1985. SAFE DRINKING WATER. THE IMPACT OF CHEMICALS ON A LIMITED RESOURCE, edited by R. G. Rice, J. Wiley and Sons, Chichester, U.K., Lewis Publishers Inc. Chelsea MI, 1985. (#bp36.00) PLANTS FOR ARID LANDS. (Proceedings of the Kew International Conference on Economic Plants for Arid Lands held in the Jodrell Laboratory, Royal Botanic Gardens, Kew, England, 23‐27 July 1984), edited by G. E. Wickens, J. R. Goodwin and D. V. Field. George Allen and Unwin, London, 1985. (#bp30.00) REGULATED RIVERS, edited by A. Lillehammer and S. J. Saltveit, Univer‐sitetsforlaget AS, Oslo, 1984. (#bp47.50) NUTRIENT CYCLING IN TROPICAL FOREST ECOSYSTEMS, by C. F. Jordan, Wiley, Chichester, 1985. (#bp13.45) 相似文献
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采用熔融共挤制备了尼龙6(PA6)/苯乙烯-马来酸酐共聚物(SMA)共混物,利用差示扫描量热法、热重分析、热变形温度测试及力学测试等手段研究了SMA含量对PA6/SMA共混物熔融结晶行为、热性能及力学性能的影响。结果表明,SMA的加入使共混物的熔融温度、结晶温度及结晶度降低;当SMA用量为5份时,共混物最大分解温度较纯PA6提高了33.5℃;共混物的弯曲强度和弯曲模量在SMA用量为2.5份时达到最大,分别为115.0、3 227 MPa,比纯PA6提高了26.4%、37.0%,拉伸强度在SMA用量为5份时达到最大87.5 MPa,比纯PA6提高了25.9%。 相似文献