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排序方式: 共有81条查询结果,搜索用时 93 毫秒
71.
Abstract Residues of dicofol were determined on cucumber leaves and fruits under plastic house (PH) and plastic tunnels (PT). Five sprays, 8 d apart, were applied at 0.15% concentration. initial deposits on leaves were 48 and 58 ppm under PH and PT, respectively. In the last sampling date of leaves, the amounts of 191 and 135 ppm were detected under both cultures, respectively. There was a continuous increase in the initial residue after each spray. The highest amount of dicofol (401) was determined 1 d after the fifth spray under PH. The exposure to high residues may pose a risk to fieldworkers. On cucumber fruits, residues of 0.95 and 1.60 ppm were determined 1 d after the fourth spray under PH and PT, respectively. These residues decreased after 4 d to 0.40 and 1.49 ppm, respectively. Almost no detectable residues could be determined 8 d after sprays number 4 and 5 under both cultures. All dicofol residues on the fruits were below the tolerance level of 2 ppm. 相似文献
72.
Masoud Kavosh Kumar Patchigolla John Oakey 《International Journal of Greenhouse Gas Control》2010,4(4):603-612
This paper explores the integration and evaluation of a power plant with a CaO-based CO2 capture system. There is a great amount of recoverable heat in the CaO-based CO2 capture process. Five cases for the possible integration of a 600 MW power plant with CaO-based CO2 capture process are considered in this paper. When the system is configured so that recovered heat is used to replace part of the boiler heat load (Case 2), modelling not only shows that this is the system recovering the most heat of 1008.8 MW but also results in the system with the lowest net power output of 446 MW and the second lowest of efficiency of 34.1%. It is indicated that system performance depends both on the amount of heat recovery and the type of heat utilization. When the system is configured so that a 400 MW power plant is built using the recovered heat (Case 4), modelling shows that this is the system with the most net power output of 846 MW, the highest efficiency of 36.8%, the lowest cost of electricity of 54.3 €/MWh and the lowest cost of CO2 avoided of 28.9 €/tCO2. This new built steam cycle will not affect the operation of the reference plant which vents its CO2 to the atmosphere, highly reducing the connection between the CO2 capture process and the reference plant which vents its CO2 to the atmosphere. The average cost of electricity and the cost of CO2 avoided of the five cases are about 58.9 €/kWh and 35.9 €/tCO2, respectively. 相似文献
73.
Ghorbani Amir Mousazadeh Hossein Taheri Fatemeh Ehteshammajd Shaghayegh Azadi Hossein Yazdanpanah Masoud Khajehshahkohi Alireza Tanaskovik Vjekoslav Van Passel Steven 《Environment, Development and Sustainability》2021,23(8):11792-11817
Environment, Development and Sustainability - This study is an attempt to develop ecotourism in Nehbandan County, in the South Khorasan Province, Iran, by representing unknown areas that have... 相似文献
74.
Khani Masoud Mousavi Seyyed Ebrahim Pahlavanzadeh Hassan Ale Ebrahim Habib Mozaffari Abbas 《Environmental science and pollution research international》2019,26(10):9686-9696
Environmental Science and Pollution Research - In the present study, a detailed investigation was carried out on MoO3 alumina-supported catalysts behavior in selective catalytic reduction of SO2 to... 相似文献
75.
Afshar Abbas Soleimanian Elham Akbari Variani Hossein Vahabzadeh Masoud Molajou Amir 《Environment, Development and Sustainability》2022,24(8):10119-10140
Environment, Development and Sustainability - Several models with a variety of concepts and approaches have been proposed to address different aspects of the Water-Energy-Food (WEF) nexus system.... 相似文献
76.
Performance evaluation of an anaerobic/aerobic landfill-based digester using yard waste for energy and compost production 总被引:1,自引:0,他引:1
Yazdani R Barlaz MA Augenstein D Kayhanian M Tchobanoglous G 《Waste management (New York, N.Y.)》2012,32(5):912-919
The objective of this study was to evaluate a new alternative for yard waste management by constructing, operating and monitoring a landfill-based two-stage batch digester (anaerobic/aerobic) with the recovery of energy and compost. The system was initially operated under anaerobic conditions for 366 days, after which the yard waste was aerated for an additional 191 days. Off gas generated from the aerobic stage was treated by biofilters. Net energy recovery was 84.3MWh, or 46kWh per million metric tons of wet waste (as received), and the biochemical methane potential of the treated waste decreased by 83% during the two-stage operation. The average removal efficiencies of volatile organic compounds and non-methane organic compounds in the biofilters were 96-99% and 68-99%, respectively. 相似文献
77.
Gettel M Gulliver JS Kayhanian M DeGroot G Brand J Mohseni O Erickson AJ 《Journal of environmental monitoring : JEM》2011,13(10):2703-2709
Suspended solids either as total suspended solids (TSS) or suspended sediment concentration (SSC) is an integral particulate water quality parameter that is important in assessing particle-bound contaminants. At present, nearly all stormwater runoff quality monitoring is performed with automatic samplers in which the sampling intake is typically installed at the bottom of a storm sewer or channel. This method of sampling often results in a less accurate measurement of suspended sediment and associated pollutants due to the vertical variation in particle concentration caused by particle settling. In this study, the inaccuracies associated with sampling by conventional intakes for automatic samplers have been verified by testing with known suspended sediment concentrations and known particle sizes ranging from approximately 20 μm to 355 μm under various flow rates. Experimental results show that, for samples collected at a typical automatic sampler intake position, the ratio of sampled to feed suspended sediment concentration is up to 6600% without an intake strainer and up to 300% with a strainer. When the sampling intake is modified with multiple sampling tubes and fitted with a wing to provide lift (winged arm sampler intake), the accuracy of sampling improves substantially. With this modification, the differences between sampled and feed suspended sediment concentration were more consistent and the sampled to feed concentration ratio was accurate to within 10% for particle sizes up to 250 μm. 相似文献
78.
Naghdali Hosseinzadeh Hamid Kazem Masoud Ghahremannejad Ehsan Ahmadi Navid Kazem 《Journal of Loss Prevention in the Process Industries》2013,26(4):666-675
API650-2008 is one of the prominent codes consisting of seismic specifications to design steel storage tanks for earthquakes resistance. In spite of the code's broad application, there are some failure modes such as slide bottom, elephant-foot buckling, sloshing and uplift needing more evaluation. In this paper, 161 existing tanks in an oil refinery complex have been classified into 24 groups and investigated using both API650-2008 rules and numerical FEM models. Failure modes and dynamic characteristics of studied models have been calculated by numerical FEM analysis and compared with code requirements. The results demonstrate that, in some cases, there are some imperfections in the code requirements that require further investigation. 相似文献
79.
Masoud Yazdanpanah Dariush Hayati Gholam Hosein Zamani Fereshteh Karbalaee Stefan Hochrainer-Stigler 《Environment, Development and Sustainability》2013,15(6):1605-1621
This article reflects on the fundamentals of first and second modernity and its usefulness and practicability for problem formulation and solving in the context of water management practices in Iran. It is argued that the current water crisis in Iran resulted from modernization based on first modernity paradigms, and second modernity concepts are used to present a framework for new water management approaches. Based on the concept of sub-political arrangements, we suggest that water management issues can be treated best in process-based ways under a reflexive modernity point of view. 相似文献
80.
Zobeidi Tahereh Yaghoubi Jafar Yazdanpanah Masoud 《Environment, Development and Sustainability》2022,24(4):5400-5425
Environment, Development and Sustainability - Water scarcity poses a global threat to smallholder farmers and crops. Along with population growth, agricultural development, increased urbanization,... 相似文献