全文获取类型
收费全文 | 647篇 |
免费 | 4篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 21篇 |
废物处理 | 16篇 |
环保管理 | 91篇 |
综合类 | 208篇 |
基础理论 | 109篇 |
环境理论 | 1篇 |
污染及防治 | 162篇 |
评价与监测 | 31篇 |
社会与环境 | 13篇 |
灾害及防治 | 1篇 |
出版年
2021年 | 11篇 |
2016年 | 7篇 |
2015年 | 14篇 |
2014年 | 15篇 |
2013年 | 33篇 |
2012年 | 18篇 |
2011年 | 28篇 |
2010年 | 31篇 |
2009年 | 17篇 |
2008年 | 26篇 |
2007年 | 35篇 |
2006年 | 31篇 |
2005年 | 15篇 |
2004年 | 22篇 |
2003年 | 29篇 |
2002年 | 18篇 |
2000年 | 7篇 |
1999年 | 6篇 |
1998年 | 8篇 |
1997年 | 9篇 |
1994年 | 7篇 |
1993年 | 8篇 |
1991年 | 6篇 |
1990年 | 4篇 |
1989年 | 6篇 |
1988年 | 5篇 |
1987年 | 7篇 |
1984年 | 4篇 |
1982年 | 6篇 |
1980年 | 6篇 |
1968年 | 4篇 |
1967年 | 4篇 |
1966年 | 4篇 |
1965年 | 5篇 |
1964年 | 5篇 |
1963年 | 6篇 |
1962年 | 6篇 |
1961年 | 6篇 |
1960年 | 4篇 |
1958年 | 7篇 |
1957年 | 5篇 |
1956年 | 11篇 |
1955年 | 7篇 |
1953年 | 5篇 |
1952年 | 4篇 |
1947年 | 5篇 |
1940年 | 4篇 |
1930年 | 4篇 |
1926年 | 4篇 |
1913年 | 5篇 |
排序方式: 共有653条查询结果,搜索用时 15 毫秒
1.
Carl Mikael Lind Mikael Forsman Linda Maria Rose 《International journal of occupational safety and ergonomics》2019,25(2):165-180
RAMP I is a screening tool developed to support practitioners in screening for work-related musculoskeletal disorder risk factors related to manual handling. RAMP I, which is part of the RAMP tool, is based on research-based studies combined with expert group judgments. More than 80 practitioners participated in the development of RAMP I. The tool consists of dichotomous assessment items grouped into seven categories. Acceptable reliability was found for a majority of the assessment items for 15 practitioners who were given 1?h of training. The usability evaluation points to RAMP I being usable for screening for musculoskeletal disorder risk factors, i.e., usable for assessing risks, being usable as a decision base, having clear results and that the time needed for an assessment is acceptable. It is concluded that RAMP I is a usable tool for practitioners. 相似文献
2.
Improvements on Flood Alleviation in Germany: Lessons Learned from the Elbe Flood in August 2002 总被引:1,自引:0,他引:1
The increase in damage due to natural disasters is directly related to the number of people who live and work in hazardous
areas and continuously accumulate assets. Therefore, land use planning authorities have to manage effectively the establishment
and development of settlements in flood-prone areas in order to avoid the further increase of vulnerable assets. Germany faced
major destruction during the flood in August 2002 in the Elbe and Danube catchments, and many changes have been suggested
in the existing German water and planning regulations. This article presents some findings of a “Lessons Learned” study that
was carried out in the aftermath of the flood and discusses the following topics: 1) the establishment of comprehensive hazard
maps and flood protection concepts, 2) the harmonization of regulations of flood protection at the federal level, 3) the communication
of the flood hazard and awareness strategies, and 4) how damage potential can be minimized through measures of area precaution
such as resettlement and risk-adapted land use. Although attempts towards a coordinated and harmonized creation of flood hazard
maps and concepts have been made, there is still no uniform strategy at all planning levels and for all states (Lae
nder) of the Federal Republic of Germany. The development and communication of possible mitigation strategies for “unthinkable
extreme events” beyond the common safety level of a 100-year flood are needed. In order to establish a sustainable and integrated
flood risk management, interdisciplinary and catchment-based approaches are needed. 相似文献
3.
Progress in Restoration of the Mauritius Kestrel 总被引:1,自引:0,他引:1
In the 1970s, the Mauritius Kestrel ( Falco punctatus ) was the most endangered bird of prey in the world, at one time with only two known pairs surviving in the remnant native forest of the Black River Gorges (ca. 4,000 ha). At the end of the 1991–1992 breeding season, a minimum of 30 nesting pairs and more than 170 individuals were distributed in four separate forested areas, thanks mainly to manipulation of the reproductive potential of the wild pairs, to captive propagation, and to reintroduction (restocking). Since 1984, 139 young have been reared from 618 eggs laid by captive kestrels, and 147 from 265 wild eggs incubated and hatched in the laboratory; 235 young kestrels have been released on Mauritius by hacking and fostering. Adjustments in feeding and nesting habits of kestrels hacked and released outside the Black River Gorges in areas dominated by exotic vegetation and agriculture have allowed these kestrels to survive and reproduce in an array of previously unused habitats. Now that the kestrels have been released from dependence on the remnant and dying native forest, a viable population of more than 100 nesting pairs should be achievable in a few more years. 相似文献
4.
5.
Carl W. Chen 《Journal of the American Water Resources Association》2003,39(6):1561-1562
6.
7.
8.
9.
10.
The Science of Nature - 相似文献