全文获取类型
收费全文 | 907篇 |
免费 | 11篇 |
国内免费 | 31篇 |
专业分类
安全科学 | 36篇 |
废物处理 | 91篇 |
环保管理 | 83篇 |
综合类 | 75篇 |
基础理论 | 152篇 |
环境理论 | 2篇 |
污染及防治 | 301篇 |
评价与监测 | 139篇 |
社会与环境 | 54篇 |
灾害及防治 | 16篇 |
出版年
2023年 | 16篇 |
2022年 | 108篇 |
2021年 | 85篇 |
2020年 | 24篇 |
2019年 | 38篇 |
2018年 | 47篇 |
2017年 | 50篇 |
2016年 | 52篇 |
2015年 | 37篇 |
2014年 | 47篇 |
2013年 | 115篇 |
2012年 | 46篇 |
2011年 | 69篇 |
2010年 | 36篇 |
2009年 | 42篇 |
2008年 | 22篇 |
2007年 | 23篇 |
2006年 | 12篇 |
2005年 | 10篇 |
2004年 | 11篇 |
2003年 | 10篇 |
2002年 | 7篇 |
2001年 | 4篇 |
2000年 | 1篇 |
1999年 | 2篇 |
1998年 | 1篇 |
1996年 | 2篇 |
1995年 | 1篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1988年 | 3篇 |
1987年 | 1篇 |
1986年 | 2篇 |
1985年 | 2篇 |
1982年 | 2篇 |
1981年 | 4篇 |
1980年 | 1篇 |
1979年 | 5篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1973年 | 1篇 |
1970年 | 1篇 |
1969年 | 1篇 |
1959年 | 1篇 |
1958年 | 1篇 |
排序方式: 共有949条查询结果,搜索用时 15 毫秒
201.
Safa Sorur Ghaneian Mohammad Taghi Ehrampoush Mohammad Hassan 《Environmental science and pollution research international》2021,28(39):54679-54694
Environmental Science and Pollution Research - The congener polychlorinated biphenyls (PCBs) are one of the of persistent organic pollutant compounds that increase lifestyle-related diseases, such... 相似文献
202.
Mahsa Bozorgi Farhad Nejadkoorki Mohammad Bagher Mousavi 《Environmental monitoring and assessment》2018,190(4):250
Scenario-based land surface temperature (LST) modeling is a powerful tool for adopting proper urban land use planning policies. In this study, using greater Isfahan as a case study, the artificial neural network (ANN) algorithm was utilized to explore the non-linear relationships between urban LST and green cover spatial patterns derived from Landsat 8 OLI imagery. The model was calibrated using two sets of variables: Normalized Difference Built Index (NDBI) and Normalized Difference Vegetation Index (NDVI). Furthermore, Compact Development Scenario (CDS) and Green Development Scenario (GDS) were defined. The results showed that GDS is more successful in mitigating urban LST (mean LST?=?40.93) compared to CDS (mean LST?=?44.88). In addition, urban LST retrieved from the CDS was more accurate in terms of ANOVA significance (sig?=?0.043) than the GDS (sig?=?0.010). The findings of this study suggest that developing green spaces is a key strategy to combat against the risk of LST concerns in urban areas. 相似文献
203.
Hajabdollahi Hassan Shafiey Dehaj Mohammad 《Environmental science and pollution research international》2021,28(28):37580-37591
Environmental Science and Pollution Research - In this paper, a concept of balance is used to improve the important parameters of the thermal systems. In fact, using this concept give the designer... 相似文献
204.
Husein Dalal Z. Uddin Mohammad Kashif Ansari Mohammad Omaish Ahmed Sameh S. 《Environmental science and pollution research international》2021,28(22):28014-28023
Environmental Science and Pollution Research - A facile, feasible, and green synthesis via an electrochemical exfoliation process was applied to synthesize nitrogen-doped MgO/graphene nanocomposite... 相似文献
205.
Irshidat Mohammad R. Abdel-Jawad Yahia A. Al-Sughayer Rami 《Journal of Material Cycles and Waste Management》2018,20(3):1751-1760
Journal of Material Cycles and Waste Management - The feasibility of using locally available natural pozzolanic materials as complete replacement of cement binder to produce sustainable geopolymer... 相似文献
206.
Ghasemi Mohammad Hadi Neekzad Nariman Ajdari Farshad Boorboor Kowsari Elaheh Ramakrishna Seeram 《Environmental science and pollution research international》2021,28(32):43074-43101
Environmental Science and Pollution Research - Since plastic waste pollution is a severe environmental concern in modern life, the demand for recycling poly(ethylene terephthalate) (PET) has... 相似文献
207.
Tamaskani Esfehankalateh Atefeh Farrokhzad Mohammad Tamaskani Esfehankalateh Faezeh Soflaei Farzaneh 《Environment, Development and Sustainability》2022,24(8):10027-10068
Environment, Development and Sustainability - Providing indoor thermal comfort is one of the most significant factors in architecture that it is observed in traditional buildings all around the... 相似文献
208.
Sultana Nahid Rahman Mohammad Mafizur Khanam Rasheda 《Environment, Development and Sustainability》2022,24(4):5426-5450
Environment, Development and Sustainability - This study has investigated the Environmental Kuznets Curve (EKC) hypothesis and focuses on the resource stock of the country in relation to the... 相似文献
209.
The photocatalysed degradation of two selected priority organic pollutants, namely benzidine (1) and 1,2-diphenylhydrazine (DPH, 2) has been investigated in aqueous suspensions of titanium dioxide (TiO2) under a variety of conditions employing a pH-stat technique. The degradation was studied by monitoring the change in substrate concentration of the model compound employing HPLC analysis and the decrease in total organic carbon content, respectively, as a function of irradiation time. The degradation kinetics were studied under different conditions such as reaction pH, substrate and photocatalyst concentration, type of TiO2 photocatalyst and the presence of alternative additives such as H2O2, KBrO3 and (NH4)2S2O8 besides molecular oxygen. The degradation rates and the photonic efficiencies were found to be strongly influenced by the above parameters. Toxicity tests for the irradiated samples of benzidine measuring the luminescence of bacteria Vibrio fischeri after 30 min of incubation were also performed. 4-amino-biphenyl (7) and hydroquinone (13) were identified as intermediate products by GC/MS technique and probable pathways for the formation of the products are proposed. 相似文献
210.
Influence of aeration rate and reactor shape on the composting of poultry manure and sawdust 总被引:1,自引:0,他引:1
Waqas Qasim Byeong Eun Moon Frank Gyan Okyere Fawad Khan Mohammad Nafees 《Journal of the Air & Waste Management Association (1995)》2019,69(5):633-645
To achieve successful composting, all the biological, chemical, and physical characteristics need to be considered. The investigation of our study was based on various physicochemical properties, i.e., temperature, ammonia concentration, carbon dioxide concentration, pH, electrical conductivity (EC), carbon/nitrogen (C/N) ratio, organic matter (OM) content, moisture content, bacterial population, and seed germination index (GI), during the composting of poultry manure and sawdust for different aeration rates and reactor shapes. Three cylindrical-shaped and three rectangular-shaped pilot-scale 60-L composting reactors were used in this study, with aeration rates of 0.3 (low), 0.6 (medium), and 0.9 (high) L min?1 kg?1 DM (dry matter). All parameters were monitored over 21 days of composting. Results showed that the low aeration rate (0.3 L min?1 kg?1 DM) corresponded to a higher and longer thermophilic phase than did the high aeration rate (0.9 L min?1 kg?1 DM). Ammonia and carbon dioxide volatilization were directly related to the temperature profile of the substrate, with significant differences between the low and high aeration rates during weeks 2 and 3 of composting but no significant difference observed during week 1. At the end of our study, the final values of pH, EC, moisture content, C/N ratio, and organic matter in all compost reactors were lower than those at the start. The growth rates of mesophilic and thermophilic bacteria were directly correlated with mesophilic and thermophilic conditions of the compost. The final GI of the cylindrical reactor with an airflow rate of 0.3 L min?1 kg?1 DM was 82.3%, whereas the GIs of the other compost reactors were below 80%. In this study, compost of a cylindrical reactor with a low aeration rate (0.3 L min?1 kg?1 DM) was more stable and mature than the other reactors.
Implications: The poultry industry is growing in South Korea, but there are problems associated with the management of poultry manure, and composting is one solution that could be valuable for crops and forage if managed properly. For high-quality composting, the aeration rate in different reactor shapes must be considered. The objective of this study was to investigate various physicochemical properties with different aeration rates and rector shapes. Results showed that aeration rate of 0.3 L min?1 kg?1 DM in a cylindrical reactor provides better condition for maturation of compost. 相似文献