全文获取类型
收费全文 | 49篇 |
免费 | 0篇 |
专业分类
安全科学 | 1篇 |
废物处理 | 19篇 |
环保管理 | 1篇 |
综合类 | 7篇 |
基础理论 | 4篇 |
污染及防治 | 5篇 |
评价与监测 | 10篇 |
社会与环境 | 2篇 |
出版年
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 3篇 |
2014年 | 5篇 |
2013年 | 5篇 |
2012年 | 4篇 |
2011年 | 2篇 |
2010年 | 4篇 |
2009年 | 3篇 |
2008年 | 2篇 |
2007年 | 4篇 |
2006年 | 2篇 |
2005年 | 1篇 |
2004年 | 1篇 |
2002年 | 2篇 |
2000年 | 2篇 |
1999年 | 1篇 |
1998年 | 1篇 |
1986年 | 1篇 |
1964年 | 1篇 |
1963年 | 1篇 |
1958年 | 1篇 |
1956年 | 1篇 |
排序方式: 共有49条查询结果,搜索用时 265 毫秒
31.
Shin-ichi Sakai Hideto Yoshida Jiro Hiratsuka Carlo Vandecasteele Regina Kohlmeyer Vera Susanne Rotter Fabrizio Passarini Alessandro Santini Maria Peeler Jinhui Li Gil-Jong Oh Ngo Kim Chi Lawin Bastian Stephen Moore Natsuko Kajiwara Hidetaka Takigami Takaaki Itai Shin Takahashi Shinsuke Tanabe Keijiro Tomoda Takashi Hirakawa Yasuhiro Hirai Misuzu Asari Junya Yano 《Journal of Material Cycles and Waste Management》2014,16(1):1-20
End-of-life vehicles (ELV) have become a global concern as automobiles have become popular worldwide. An international workshop was held to gather data and to discuss 3R policies and ELV recycling systems, their background and present situation, outcomes of related policies and programs, the framework of recycling and waste management, and case studies on related topics in several countries and regions, as well as the essential points of the comparison. Legislative ELV recycling systems are established in the EU, Japan, Korea, and China, while in the US, ELV recycling is managed under existing laws on environmental protection. Since automobile shredding residue (ASR) has a high calorific value and ash content, and includes heavy metals as well as a mass of unclassified fine particles, recycling ASR is considered highly difficult. Countries with a legislative ELV system commonly set a target for recovery rates, with many aiming for more than 95 % recovery. In order to reach this target, higher efficiency in ASR recovery is needed, in addition to material recycling of collectable components and metals. Environmentally friendly design was considered necessary at the planning and manufacturing stages, and the development of recycling systems and techniques in line with these changes are required for sound ELV management. 相似文献
32.
33.
Selective olfactory attention of a specialised predator to intraspecific chemical signals of its prey 总被引:1,自引:1,他引:0
Prey-specialised predators have evolved specific cognitive adaptations that increase their prey searching efficiency. In particular, when the prey is social, selection probably favours the use of prey intraspecific chemical signals by predatory arthropods. Using a specialised ant-eating zodariid spider, Zodarion rubidum, which is known to prey on several ant species and possesses capture and venom adaptations more effective on Formicinae ants, we tested its ability to recognise chemical cues produced by several ant species. Using an olfactometer, we tested the response of Z. rubidum towards air with chemical cues from six different ant species: Camponotus ligniperda, Lasius platythorax and Formica rufibarbis (all Formicinae); and Messor structor, Myrmica scabrinodis and Tetramorium caespitum (all Myrmicinae). Z. rubidum was attracted to air carrying chemical cues only from F. rufibarbis and L. platythorax. Then, we identified that the spiders were attracted to airborne cues coming from the F. rufibarbis gaster and Dufour's gland, in particular. Finally, we found that among several synthetic blends, the decyl acetate and undecane mixture produced significant attraction of spiders. These chemicals are produced only by three Formicine genera. Furthermore, we investigated the role of these chemical cues in the communication of F. rufibarbis and found that this blend reduces their movement. This study demonstrates the chemical cognitive capacity of Z. rubidum to locate its ant prey using chemical signals produced by the ants. The innate capacity of Z. rubidum to olfactory detect different ant species is narrow, as it includes only two ant genera, confirming trophic specialisation at lower than subfamily level. The olfactory cue detected by Zodarion spiders is probably a component of the recruitment or trail pheromone. 相似文献
34.
Tsukada H Takeda A Takahashi T Hasegawa H Hisamatsu S Inaba J 《Journal of environmental radioactivity》2005,81(2-3):221-231
The stable Sr content in the aboveground parts of rice plants at various growth stages, and the distributions of 90Sr and stable Sr in rice plant components, such as polished rice, rice bran, hull, straw and root, at harvest time, were determined. The total Sr content in the aboveground rice plants was dependent on the growth stage and followed the sigmoidal shape of the growth curve. The concentration of 90Sr among the different components of rice plants varied within two orders of magnitude, whereas the 90Sr/Sr concentration ratio had a constant value. Therefore, the translocation rate of 90Sr in rice plants had similar values to that of stable Sr. However, the 90Sr/Sr concentration ratio for the rice plants was different for each study site. Only 0.6% of the total Sr was found in polished rice, while more than 99% was found in the non-edible components, of which 87% was present in the straw. These findings suggest that 90Sr in the non-edible parts could have been transferred to humans through the soil-plant system and/or feed-livestock pathway. The soil-to-plant transfer factor of 90Sr in polished rice was 0.0021 +/- 0.00007, which was two orders of magnitude lower than that in the straw. The percentage of 90Sr removed from the upper soil layer to the aboveground biomass of rice plants at harvest time was calculated as 0.094%. It is possible that approximately 0.1% of the total 90Sr content in the surface soil layer is removed from the soil-plant system by human activities every year. 相似文献
35.
36.
Fallout (137)Cs and stable Cs in soils were separated with two extractants (1M CH(3)COONH(4) solution and 0.8M CH(3)COONH(4) in 5% HNO(3) solution after H(2)O(2) oxidization). The residue remaining after removal of the oxidizable organic-bound fraction was separated into the particle-size fractions including clay, silt, fine sand and coarse sand with a sieving and sedimentation method. Then, the concentrations of (137)Cs and stable Cs in the extracted fractions and the particle-size fractions were determined. The (137)Cs contents in the exchangeable and organic-bound fractions in the soil were approximately 10 and 20%, respectively. The (137)Cs content in the strongly bound fraction was about 70%, and the concentration of (137)Cs in the clay was the richest among the particle-size fractions. The specific activity of (137)Cs (concentration ratio of fallout (137)Cs/stable Cs) decreased in the order exchangeable, organic-bound and strongly bound fractions. The data suggest that equilibrium between (137)Cs and stable Cs was not reached among those fractions, even though most of the (137)Cs that had been deposited on the soil was derived from fallout weapons tests that occurred several decades ago. The concentration of (137)Cs among the particle-size fractions in each soil was different, whereas the specific activity of (137)Cs in the particle-size fractions had a relatively similar value. 相似文献
37.
Atsushi Terazono Yuichi Moriguchi Shin-ichi Sakai Hiroshi Takatsuki 《Journal of Material Cycles and Waste Management》2000,2(2):80-88
This study evaluated the environmental impacts of sprayed-on asbestos, which had been used as insulation material in buildings,
from multiple perspectives, mainly at the disposal stage. The health risks from asbestos emission and energy consumption were
estimated. Two disposal scenarios were assumed for the asbestos: melting for reduced-risk disposal and ordinary packaging/landfilling.
We estimated the asbestos emission and health risk in the case of packaging/landfilling, assuming uncontrolled management
of the landfill site. A difficulty with introducing health-risk concepts into life cycle assessment (LCA) is the pulse–flux
problem, which is discussed in the light of these estimations. In order to solve this problem, we proposed a method using
a conversion factor representing exposure-dose/emission, and showed that emission could be converted into health risk. We
also estimated the energy consumption for melting asbestos in the disposal stage, which can decrease the health risk. If we
consider the energy consumption for the life cycle of asbestos, only a little energy is required for melting, compared with
the large amount of energy saved in the use stage owing to the insulating effect of the asbestos. The trade-off relationship
between health risk and energy consumption for the disposal scenarios indicated the need for weighting methods to handle trade-offs
such as this.
Received: July 2, 1998 / Accepted: December 20, 1999 相似文献
38.
Jiro Matsushima R.F. Brewer 《Journal of the Air & Waste Management Association (1995)》2013,63(9):710-713
The influence of exposure to mixtures of SO2 and HF on Koethen sweet orange and mixtures and alternate exposure to these gases on Satsuma mandarin were tested using a rotating fumigation greenhouse. Effects of HF-SO2 mixtures on linear growth and leaf area of Koethen orange were additive, not synergistic. No necrosis was observed on Koethen oranges exposed to HF, SO2, or a mixture of HF and SO2. Effects of the mixture on chlorosis of Satsuma mandarin foliage was also not synergistic. No significant difference in linear growth of Satsuma mandarin was found among all treatments. Alternate exposure to SO2 followed by HF produced no synergistic injury to Satsuma mandarin. Satsuma mandarin appeared more sensitive than Koethen orange to HF, SO2, and mixtures of these two gases using degree of chlorosis and leaf abscission as the criteria of sensitivity. If iinear growth and leaf area were the principal criteria considered, Koethen orange would appear more sensitive. 相似文献
39.
Fumitake Takahashi Jiro Etoh Takayuki Shimaoka 《Journal of Material Cycles and Waste Management》2010,12(1):1-9
As a first step in the development of ligand-assisted removal of heavy metals from municipal solid waste incineration bottom
ash under alkaline conditions, ammonium nitrate, ammonium sulfate, ammonium acetate, ammonium oxalate, ammonium citrate, urea,
and mixtures of ammonium salts and urea were examined to find which ligands could promote the leachability of elements, including
heavy metals, and which elements could be mobilized through complexation. Ammonium citrate promoted the mobilization of Cr,
Cu, Mn, P, Sb, and especially Fe. Ammonium nitrate accelerated Mg leachability significantly. Under the conditions used in
this study, counter anions seemed to contribute mainly to the complexation. When a mixture of ammonium citrate and urea was
utilized, a coexistence effect appeared on Fe mobilization. Although the correlation analysis of leaching test results showed
a strong correlation among Cr, Cu, Fe, Mn, and P, X-ray diffraction analysis partially supported the correlation between Fe
and Mn only. 相似文献
40.
S Uno A Shintoyo E Kokushi M Yamamoto K Nakayama J Koyama 《Environmental science and pollution research international》2011,19(7):2595-2605