全文获取类型
收费全文 | 260篇 |
免费 | 2篇 |
国内免费 | 5篇 |
专业分类
安全科学 | 18篇 |
废物处理 | 27篇 |
环保管理 | 24篇 |
综合类 | 20篇 |
基础理论 | 40篇 |
污染及防治 | 69篇 |
评价与监测 | 55篇 |
社会与环境 | 12篇 |
灾害及防治 | 2篇 |
出版年
2023年 | 5篇 |
2022年 | 28篇 |
2021年 | 23篇 |
2020年 | 6篇 |
2019年 | 8篇 |
2018年 | 13篇 |
2017年 | 22篇 |
2016年 | 21篇 |
2015年 | 7篇 |
2014年 | 11篇 |
2013年 | 33篇 |
2012年 | 21篇 |
2011年 | 17篇 |
2010年 | 3篇 |
2009年 | 10篇 |
2008年 | 6篇 |
2007年 | 4篇 |
2006年 | 9篇 |
2005年 | 4篇 |
2004年 | 3篇 |
2003年 | 2篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 4篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1983年 | 2篇 |
排序方式: 共有267条查询结果,搜索用时 46 毫秒
221.
Monireh Sadat Mousavi Khosro Ashrafi Majid Shafie Pour Motlagh Mohhamad Hosein Niksokhan Hamid Reza Vosoughifar 《Environmental Modeling and Assessment》2017,22(5):431-444
Numerical and experimental analyses were applied to carbon monoxide (CO) concentration dispersion to monitor air quality in an enclosed residential complex parking area in Tehran. Firstly, the parking area was preliminary assessed through verifying the characteristics of the problem including the geometry and boundary conditions. Then, proportion of vehicular exhaust emissions was estimated and eventually experimental and numerical analyses were performed. In order to perform numerical calculation, a three-dimensional model was created to numerically simulate the enclosed residential complex parking area by FLUENT software that solves flow governing equations with finite volume method. In FLUENT, species model was selected to assess the dispersion of CO in flow domain. In experimental analysis, CO concentration was measured using sampling bags with a volume of 10 l in 4 min at 6 different points. The sample air was drawn into sampling bags by electric pumps. The findings show that the maximum amount of CO concentration is above the permissible standard recommended by the World Health Organization. Pollutant accumulation was significant in confined areas. In the place where openings exist, the level of accumulation was lower than other areas. The findings obtained from numerical simulation are in complete accord with experimental results. 相似文献
222.
Zohreh Mohammadi Soroush Modabberi Mohammad Reza Jafari Kimia Sadat Ajayebi 《Environmental monitoring and assessment》2015,187(6):374
Acid mine drainage (AMD) gives rise to several problems in sulfide-bearing mineral deposits whether in an ore body or in the mining wastes and tailings. Hence, several methods and parameters have been proposed to evaluate the acid-producing and acid-neutralizing potential of a material. This research compares common static methods for evaluation of acid-production potential of mining wastes in the Muteh gold mines by using 62 samples taken from six waste dumps around Senjedeh and Chah-Khatoun mines. According to a detailed mineralogical study, the waste materials are composed of mica-schist and quartz veins with a high amount of pyrite and are supposed to be susceptible to acid production, and upon a rainfall, they release acid drainage. All parameters introduced in different methods were calculated and compared in this research in order to predict the acid-generating and neutralization potential, including APP, NNP, MPA, NPR, and NAGpH. Based on the analytical results and calculation of different parameters, all methods are in a general consensus that DWS-02 and DWS-03 waste dumps are acid-forming which is clearly attributed to high content of pyrite in samples. DWS-04 is considered as non-acid forming in all methods except method 8 which is uncertain about its acid-forming potential and method 7 which considers a low potential for it. DWC-01 is acid-forming based on all methods except 8, 9, 10, and 11 which are also uncertain about its potential. The methods used are not reached to a compromise on DWS-01 and DWC-02 waste dumps. It is supposed that method 7 gives the conservationist results in all cases. Method 8 is unable to decide on some cases. It is recommended to use and rely on results provided by methods 1, 2, 3, and 12 for taking decisions for further studies. Therefore, according to the static tests used, the aforementioned criteria in selected methods can be used with much confidence as a rule of thumb estimation. 相似文献
223.
Asgari Lajayer Behnam Khadem Moghadam Nader Maghsoodi Mohammad Reza Ghorbanpour Mansour Kariman Khalil 《Environmental science and pollution research international》2019,26(9):8468-8484
Environmental Science and Pollution Research - Accumulation of heavy metals (HMs) in soil, water and air is one of the major environmental concerns worldwide, which mainly occurs due to... 相似文献
224.
Saman Ghahri Behbood Mohebby Antonio Pizzi Ahmad Mirshokraie Hamid Reza Mansouri 《Journal of Polymers and the Environment》2018,26(5):1881-1890
In this research tannic acid was used to prepare soy-based adhesives for making plywood and fiber board. The different resin formulations were analyzed by Differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and its derivative as a function of temperature (DTG) and Fourier Transform Infra-red (FTIR) spectroscopy. The results showed that the addition of tannic acid to soy-based adhesive decreased soy-based adhesive viscosity and its pH. The DSC analysis showed that the denaturation temperature of soy-based adhesives decrease by adding tannic acid. The TGA and DTG curves showed that the thermal degradation of soy flour starts above 146 °C. The FTIR spectroscopy results also showed that the soy flour amino acids appeared to react well with tannic acid. Furthermore, delamination and shear strength test results showed the good water resistance of plywood bonded with soy-based tannic acid-modified adhesive. The mechanical and physical properties such as MOR, MOE, IB, and water resistance of fiberboard were improved, by adding tannic acid to the soy-based adhesive. 相似文献
225.
Bakhshoodeh Reza Alavi Nadali Paydary Pooya 《Environmental science and pollution research international》2017,24(30):23803-23814
Environmental Science and Pollution Research - Handling and treatment of composting leachate is difficult and poses major burdens on composting facilities. The main goal of this study was to... 相似文献
226.
227.
228.
Ebrahimi Farhad Saen Reza Farzipoor Karimi Balal 《Environmental science and pollution research international》2021,28(45):64039-64067
Environmental Science and Pollution Research - The objective of this paper is to assess the sustainability of supply chains by proposing a dynamic network data envelopment analysis (DNDEA) model in... 相似文献
229.
Homayonibezi Nasrin Dobaradaran Sina Arfaeinia Hossein Mahmoodi Marzieh Sanati Ali Mohammad Farzaneh Mohammad Reza Kafaei Raheleh Afsari Maryam Fouladvand Moradali Ramavandi Bahman 《Environmental science and pollution research international》2021,28(12):14882-14892
Environmental Science and Pollution Research - This work aimed to explore the concentration of nickel, manganese, iron, copper, chromium, and lead in the milk of goat herds in the industrial area... 相似文献
230.
Dugwon Seo Tarendra Lakhankar Juan Mejia Brian Cosgrove Reza Khanbilvardi 《Journal of the American Water Resources Association》2013,49(6):1296-1307
National Oceanic and Atmospheric Administration's National Weather Service (NWS) flash flood warnings are issued by Weather Forecast Offices and are underpinned by information from the Flash Flood Guidance (FFG) system operated by the River Forecast Centers (RFCs). This study focuses on the quantitative evaluation and limitations of the FFG system using reported flash flood cases in 2010 and 2011. The flash flood reports were obtained from the NWS Storm Event database for the Arkansas‐Red Basin RFC (ABRFC). The current FFG system at the ABRFC provides gridded flash flood guidance (GFFG) system using the NWS Hydrology Laboratory‐Research Distributed Hydrologic Model to translate the upper zone soil moisture to estimates of Soil Conservation Service Curve Numbers. Comparisons of the GFFG and real‐time Multisensor Precipitation Estimator‐derived Quantitative Precipitation Estimate for the same duration and location were used to analyze the success of the system. Typically, the six‐hour duration was characterized by higher probability of detection values than the three‐hour duration, which highlights the difficulty of hydrologic process estimation for shorter time scales. The current system does not take into account physical characteristics such as land use, including irrigated agricultural farm and urban areas, hence, overly dry soil moisture estimates over these areas can lower the success rate of the GFFG product. 相似文献