全文获取类型
收费全文 | 545篇 |
免费 | 3篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 1篇 |
废物处理 | 9篇 |
环保管理 | 25篇 |
综合类 | 300篇 |
基础理论 | 87篇 |
污染及防治 | 97篇 |
评价与监测 | 21篇 |
社会与环境 | 12篇 |
灾害及防治 | 1篇 |
出版年
2018年 | 5篇 |
2017年 | 8篇 |
2016年 | 11篇 |
2015年 | 8篇 |
2013年 | 17篇 |
2012年 | 8篇 |
2011年 | 21篇 |
2010年 | 13篇 |
2009年 | 15篇 |
2008年 | 20篇 |
2007年 | 18篇 |
2006年 | 6篇 |
2005年 | 13篇 |
2004年 | 14篇 |
2003年 | 15篇 |
2002年 | 12篇 |
2001年 | 7篇 |
1999年 | 12篇 |
1998年 | 14篇 |
1997年 | 7篇 |
1996年 | 6篇 |
1995年 | 7篇 |
1994年 | 7篇 |
1993年 | 5篇 |
1985年 | 5篇 |
1975年 | 5篇 |
1973年 | 6篇 |
1972年 | 5篇 |
1970年 | 8篇 |
1967年 | 8篇 |
1965年 | 11篇 |
1964年 | 4篇 |
1963年 | 13篇 |
1962年 | 10篇 |
1961年 | 9篇 |
1960年 | 10篇 |
1959年 | 13篇 |
1958年 | 9篇 |
1957年 | 7篇 |
1956年 | 9篇 |
1955年 | 7篇 |
1954年 | 5篇 |
1953年 | 6篇 |
1952年 | 5篇 |
1951年 | 4篇 |
1938年 | 4篇 |
1930年 | 4篇 |
1926年 | 6篇 |
1914年 | 6篇 |
1913年 | 10篇 |
排序方式: 共有553条查询结果,搜索用时 296 毫秒
341.
Peter Viebahn Michael Matthies Werner Berens Bodo Rieger 《Environmental Sciences Europe》1999,11(5):303-307
The basis for the first energy and flow analysis of the University of Osnabrück and the resulting ecobalance was an extensive data collection, preparation and processing. To simplify drawing up the balance in the following years and to facilitate an eco-controlling based on this data, a concept for a University’s Environmental Information System (EIS) was developed. It consists of three parts: the operative level includes the data bases of the individual administrative departments; at the central data base level, the ecobalance and the environmental characteristic values are computed; and the processing and presentational level serves as an interface between the data and users. The implementation of the EIS is intended within the framework of the general Management Information System, the development of which was started in 1998. 相似文献
342.
343.
344.
345.
B. Kanitscheider J. Schwartzkopff H. O. Hettche O. Kinne B. Werner H. Pick G. Traving E. Lamla P. Ramdohr H. Strunz H. Werner H. Preuß E. Pfeil K. -J. Euler M. Becke G. Wunsch F. Frimmel H. Puchelt L. Horner B. Schenck L. Jaenicke D. Gericke K. Goerttler G. Wagner O. Creutzfeldt W. F. Angermeier H. Jockusch G. Kobabe G. Habermehl J. Jacobs H. Ziegler 《Die Naturwissenschaften》1975,62(1):45-52
346.
347.
Werner Theobald 《Environmental Sciences Europe》2004,16(4):219-222
This paper discusses the discrepancy of attitude and behaviour in an environmental protection from the point of view of philosophy. Coming from the classical thesis of moral philosophy, that someone who infringes the ‘good’ has no secure knowledge, it examines how ethical arguments can contribute to get such a knowledge. The result of this study is that the logical power of persuasion alone is not able to acquire such a knowledge; and in order to obtain practical efficiency, ethical arguments should converse to emotional stratifications of personality. Based on the examination of positive feelings for nature, the paper discusses how this can happen. 相似文献
348.
Efforts to reduce the energy needs to heat or cool dwellings have the potential to create new health hazards. Increases in indoor levels of radon and its progeny from the reduction in air exchange rates add a substantial radioactive burden to the general population. Other indoor pollutants reaching critical concentrations in homes with low air exchange rates are CO and NO2 from unvented combustion in gas stoves and heaters, tobacco smoke, and asbestos fibers. In addition, insulation materials and certain types of furniture may contribute the toxicant formaldehyde diffusing from foam injected walls or chipboard. Risk estimations using linear dose-response relationships show risk factors per kWh saved which are orders of magnitude greater than for a kWh produced by large power plants using coal, oil, gas, or uranium. 相似文献
349.
350.