全文获取类型
收费全文 | 122篇 |
免费 | 2篇 |
专业分类
安全科学 | 16篇 |
废物处理 | 1篇 |
环保管理 | 9篇 |
综合类 | 33篇 |
基础理论 | 23篇 |
污染及防治 | 32篇 |
评价与监测 | 5篇 |
社会与环境 | 5篇 |
出版年
2023年 | 1篇 |
2022年 | 1篇 |
2021年 | 1篇 |
2020年 | 3篇 |
2019年 | 2篇 |
2018年 | 2篇 |
2017年 | 3篇 |
2016年 | 5篇 |
2015年 | 3篇 |
2014年 | 2篇 |
2013年 | 10篇 |
2012年 | 6篇 |
2011年 | 5篇 |
2010年 | 3篇 |
2009年 | 3篇 |
2008年 | 6篇 |
2007年 | 11篇 |
2006年 | 8篇 |
2005年 | 4篇 |
2004年 | 3篇 |
2003年 | 5篇 |
2001年 | 1篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1994年 | 2篇 |
1992年 | 1篇 |
1991年 | 2篇 |
1990年 | 2篇 |
1989年 | 2篇 |
1987年 | 2篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1981年 | 2篇 |
1977年 | 2篇 |
1974年 | 1篇 |
1972年 | 2篇 |
1963年 | 2篇 |
1961年 | 1篇 |
1960年 | 1篇 |
1958年 | 2篇 |
1957年 | 1篇 |
1956年 | 2篇 |
1931年 | 1篇 |
排序方式: 共有124条查询结果,搜索用时 15 毫秒
101.
David T. Alien Terry Foecke Howard Klee Jr. W. B. Beck Lawrence L. Ross Arthur H. Purcell 《Journal of the Air & Waste Management Association (1995)》2013,63(9):1159-1167
The 1992 A&WMA Critical Review was authored by Harry Freeman and members of his staff at the Pollution Prevention Research Branch, Risk Reduction Engineering Laboratory, U.S. Environmental Protection Agency in Cincinnati, Ohio. Mr. Freeman presented the paper "Industrial Pollution Prevention," at the Critical Review session held during the 85th Air & Waste Management Association Annual Meeting in Kansas City, Missouri. Prepared discussions and invited comments presented during the session are published here, as well as closing remarks by Mr. Freeman. 相似文献
102.
Michael Beck MD Susanne Braun Wiltrud Coerdt Eberhard Merz Elisabeth Young Adrian C. Sewell 《黑龙江环境通报》1992,12(12):1019-1029
A fetus with mucopolysaccharidosis type IV A (Morquio type A) is described. The family had one affected child exhibiting symptoms of classical Morquio A disease, and late in the subsequent pregnancy prenatal diagnosis was requested. At 23 weeks' gestation, moderate ascites was detected by detailed ultrasound scan and keratan sulphate was found in the amniotic fluid. The pregnancy was terminated by prostaglandin induction and the diagnosis of mucopolysaccharidosis type IV A was confirmed by demonstration of a deficiency of N-acetylgalactosamine-6-sulphate (GalNac-6-S) sulphatase in cultured amniotic cells and in post-mortem fibroblast cultures. The activities of β-galactosidase and arylsulphatase A were normal, ruling out Morquio disease type B and multiple sulphatase deficiency. These results indicate that mucopolysaccharidosis IV A (a disease that predominantly affects the skeletal system) may produce ascites in the fetus to such an extent that it can be detected by ultrasound. 相似文献
103.
Raymond I. Carruthers Marie K. Franc Wai S. Gee Allard A. Coss�� Brenda J. Grewell John J. Beck 《Chemoecology》2011,21(4):253-259
The flea beetle Altica litigata (Chrysomelidae) is an insect herbivore to plants within the families Lythraceae and Onagraceae, including ornamentals such
as crape myrtle, Lagerstroemia spp. This insect is important both as a pest species and as a naturally occurring biological control agent due to its aggregate
feeding behavior, which typically results in severe defoliation of the host plant. Despite the negative economic impact to
ornamentals and contrary benefits as a biological control agent, there are few reports on the semiochemical communication
of this family of insects. Uruguayan primrose-willow (Ludwigia hexapetala) is an invasive aquatic weed in California and serves as a host to A. litigata. To better characterize this association, the volatile emissions of A. litigata were collected while the flea beetles were: in containers by themselves, in containers with L. hexapetala leaves, in situ on L. hexapetala leaves in a growth chamber, and in situ on L. hexapetala leaves in the field. For comparison, the volatile emissions of A. litigata associated with two subspecies of creeping water primrose (L. peploides) were also evaluated. Two himachalene-type sesquiterpenes, showing the same carbon skeleton as compounds previously reported
from Aphthona flava and Epitrix fuscula, were detected as volatiles from A. litigata. 相似文献
104.
105.
106.
107.
108.
109.
Effects of two "enhanced" treatments (drying and composting mesophilic anaerobically digested (MAD) biosolid) on nutrient leaching were investigated. Repacked sandy or sandy loam textured soil cores amended with fresh, dried and composted MAD biosolid (250 kg N ha(-1)), were investigated under steady-state hydrological conditions. Two 24 h, 4.5 mm h(-1) rainfall events, with a 14-day interval, were simulated using water-tracers. Losses of nitrate from the sandy loam soil during rainfall event 1 (43.9-68.0 mg kg(-1)) were significantly greater (P < or = 0.05) than during event 2 (6.4-11.9 mg kg(-1)). Phosphate losses were significantly greater (P < or = 0.05) during event 2 (up to 0.30 mg kg(-1)) compared to the first (< 0.05 mg kg(-1)). The sand soil showed similar effects. Losses of nitrate-N (percentage of total N applied) from the sand soil were small (around 0.06% for fresh/dried and 0.63% for composted MAD biosolids). Losses of nitrate-N from the sandy loam soil were greater; 4% for fresh and dried and 3% for composted MAD biosolids. This research showed that drying MAD biosolid had little impact on nitrate and phosphate losses from soil compared to fresh MAD biosolid. The effect of composting MAD biosolid on nutrient losses was more variable. 相似文献
110.
Zhou Nicolette A. Fagnant-Sperati Christine S. Komen Evans Mwangi Benlick Mukubi Johnstone Nyangao James Hassan Joanne Chepkurui Agnes Maina Caroline van Zyl Walda B. Matsapola Peter N. Wolfaardt Marianne Ngwana Fhatuwani B. Jeffries-Miles Stacey Coulliette-Salmond Angela Peñaranda Silvia Shirai Jeffry H. Kossik Alexandra L. Beck Nicola K. Wilmouth Robyn Boyle David S. Burns Cara C. Taylor Maureen B. Borus Peter Meschke John Scott 《Food and environmental virology》2020,12(1):35-47