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91.
Flávia Gonçalves Domingues Ferreira Maria Alice Gomes de Andrade Lima Yêda Medeiros Bastos de Almeida Glória Maria Vinhas 《Journal of Polymers and the Environment》2010,18(3):196-201
Blends of LDPE/modified starch were prepared, sterilized by gamma radiation and investigated with respect to their microbial
degradation by a mixture of fungal strains in liquid medium after 90 days, was analyzed by carbon dioxide (CO2) production (Sturm test). Biodegradation of blends was evaluated by Fourier transform infrared spectroscopy (FTIR) and X-ray
diffraction; mechanical testing, scanning electron microscopy (SEM). The biodegradation of LDPE/modified starch blends was
attributed to microbiological attack, with alterations in the chemical structure of the blend with an increase in the carbonyl
and vinyl indices and the appearance of new crystalline symmetry generating a crystalline domain not existing before in the
blend and decrease in the mechanical properties. 相似文献
92.
da Silva Maryne Patrícia de Souza Ziani Santana Bandeira Cavalcanti Jorge Vinicius Fernandes Lima Fraga Tiago José Marques da Motta Sobrinho Maurício Alves Ghislandi Marcos Gomes 《Environmental science and pollution research international》2021,28(19):23684-23698
Environmental Science and Pollution Research - Multilayer graphene oxide (mGO) was synthesized and functionalized via co-precipitation method to produce magnetic Fe3O4-functionalized multilayer... 相似文献
93.
Anjos Charlene S. Lima Rafaely N. Porto André L. M. 《Environmental science and pollution research international》2021,28(28):37082-37109
Environmental Science and Pollution Research - Neonicotinoids are a class of pesticides widely used in different phases of agricultural crops. Similar to other classes of pesticides, they can... 相似文献
94.
de Araujo Helder F. P. Machado Célia C. C. Alves Ana Carolina Flores da Costa Lima Mônica da Silva José Maria Cardoso 《Mitigation and Adaptation Strategies for Global Change》2022,27(8):1-18
Mitigation and Adaptation Strategies for Global Change - All Clean Development Mechanism (CDM) projects are designed to contribute to the sustainable development of the host country. Livelihood is... 相似文献
95.
Lopes Géssica de Oliveira Aragão Walessa Alana Bragança Nascimento Priscila Cunha Bittencourt Leonardo Oliveira Oliveira Ana Carolina Alves Leão Luana Ketlen Reis Alves-Júnior Sergio Melo Pinheiro João de Jesus Viana Crespo-Lopez Maria Elena Lima Rafael Rodrigues 《Environmental science and pollution research international》2021,28(9):10918-10930
Environmental Science and Pollution Research - This study aimed to investigate the effects of lead (Pb) exposure on parotid and submandibular glands through morphological aspects as well as the... 相似文献
96.
Paolo Valera Patrizia Zavattari Stefano Albanese Domenico Cicchella Enrico Dinelli Annamaria Lima Benedetto De Vivo 《Environmental geochemistry and health》2014,36(1):79-98
Complex multifactorial disorders usually arise in individuals genetically at risk in the presence of permissive environmental factors. For many of these diseases, predisposing gene variants are partly known while the identification of the environmental component is much more difficult. This study aims to investigate whether there are correlations between the incidence of two complex traits, multiple sclerosis and type 1 diabetes, and some chemical elements and compounds present in soils and stream sediments in Europe. Data were obtained from the published literature and analyzed by calculating the mean values of each element and of disease incidence for each Country, respectively, 17 for multiple sclerosis and 21 for type 1 diabetes. Correlation matrices and regression analyses were used in order to compare incidence data and geochemical data. R correlation index and significance were evaluated. The analyses performed in this study have revealed significant positive correlations between barium and sodium oxide on one hand and multiple sclerosis and diabetes incidences on the other hand that may suggest interactions to be evaluated between silicon-rich lithologies and/or marine environments. The negative correlations shown by cobalt, chromium and nickel (typical of silicon-poor environment), which in this case can be interpreted as protective effects against the two diseases onset, make the split between favorable and protective environments even more obvious. In conclusion, if other studies will confirm the involvement of the above elements and compounds in the etiology of these pathologies, then it will be possible to plan strategies to reduce the spread of these serious pandemics. 相似文献
97.
Ferreira Matheus da Silva Fontes Maurício Paulo Ferreira Pacheco Anderson Almeida Ker João Carlos Lima Hedinaldo Narciso 《Environmental geochemistry and health》2021,43(9):3407-3427
Environmental Geochemistry and Health - The city of Manaus is the biggest industrial city of the north Brazilian region, and a haphazard urbanization process characterizes it. The continuous... 相似文献
98.
Victor Navarro da Silva Caroline de Lima Frachia Isis Caroline Ferreira Barbosa Mariana Bocchi da Silva Wesller da Silva de Paiva Lucas Anjos Souza Gilberto Costa Justino Liliane Santos de Camargos 《环境质量管理》2021,30(3):27-36
Soil contamination by trace elements (TEs) is a problem of great concern since the industrial revolution. However, not all TEs are essentially toxic, and several micronutrients such as boron (B) play essential roles during plant development and, in this case, B acts in plants as a structural element. Soil B levels above 3.0 mg dm–3 may be toxic to many plants and the greatest input of B to the environment occurs through the anthropic way. An environmentally promising alternative is phytoremediation, in which contaminant‐tolerant plants are used to remove or stabilize TEs in soils. Therefore, this work has been carried out to aim C. mucunoides’ tolerance to increasing B concentrations and its potential as a phytoremediator. We found out that C. mucunoides tolerates B doses up to 480 mg dm?3, the B uptaken is transported at a 1:1 ratio between root and shoot, suggesting that C. mucunoides can be used as a phytostabilizer and phytoextractor due to its potential to be used in phytoremediation techniques because it can tolerate toxic concentrations of B. 相似文献
99.
This article examines the role of building trust in Humanitarian Mine Action (HMA). The role of trust following a mine-clearance operation is largely an unexplored region. Drawing on case studies from Angola, Mozambique and Afghanistan, the article explores how trust can be understood in the context of humanitarian initiatives such as landmine clearance, and outlines the challenges associated with building trust among populations with experience of armed conflict. Because trust is difficult to re-establish following a war, the argument presented here suggests that one way in which this can be done is through building relationships at the organisational and interpersonal levels. The analysis reviews specific measures that mine-action agencies have used to build trust, looking at the strengths and weaknesses of different approaches. The analysis concludes by suggesting general guidelines for how mine-action practitioners can facilitate trust, and by outlining some promising avenues for future research. 相似文献
100.
In the real option pricing model of valuation and decision making, the estimation of future volatility is a key input parameter. For traded commodities or financial assets, past volatility is used as a proxy for predictions. But, for projects, this approach is not feasible because, in most cases, historical data of traded projects are not available. As an alternate solution, it is usually assumed that project volatility is equal to that of commodity price. In order to investigate this assumption, we estimate the project volatility considering that both commodity price and operating cost evolve as a geometric Brownian motion (GBM). Results of a hypothetical gold mining project indicate that project volatility is higher than that of commodity price and it only drops to price volatility under very unrealistic industry conditions, such as very high prices or very low production costs. In addition, we find that project volatility is independent of production capacity and taxation, but depends on increments in price and cost, as well as strongly on their degree of correlation. 相似文献