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排序方式: 共有115条查询结果,搜索用时 15 毫秒
51.
Luswaga Hussein Nuppenau Ernst-August 《Environment, Development and Sustainability》2022,24(10):11651-11675
Environment, Development and Sustainability - Despite the importance of forests to the communities in rural Tanzania, information is scarce regarding the contribution of non-timber forest products... 相似文献
52.
Continuous adsorptive removal of glimepiride using multi-walled carbon nanotubes in fixed-bed column
Badran Ismail Qut Obada Manasrah Abdallah D. Abualhasan Murad 《Environmental science and pollution research international》2021,28(12):14694-14706
Environmental Science and Pollution Research - Water pollution by emerging pollutants such as pharmaceutical and personal care products is one of today’s biggest challenges. The presence of... 相似文献
53.
A freshwater fish species, Tilapia zillii, from Lake El-Manzala was analysed for concentrations of several organochlorine pesticides (OCs) and polychlorinated biphenyl (PCBs) in liver, gonads, mesenteric fat, flesh, and digestive tract in mature fish during the breeding season. PCBs and OCs were calculated in ng g-1 dry weight (dw) in homogenized samples. The obtained results revealed differences in lipid content between these different organs. The females showed a higher lipid content than did males. There was a significant positive correlation between the lipid content and the concentrations of detected organochlorines and PCBs. The results are concomitant with the lipophilicity of studied compounds. However, the recorded concentrations of these studied pollutants still do not exceed the international hazardous levels. 相似文献
54.
Elfadadny Ahmed El-Husseiny Hussein M. Abugomaa Amira Ragab Rokaia F. Mady Eman A. Aboubakr Mohamed Samir Haney Mandour Ahmed S. El-Mleeh Amany El-Far Ali H. Abd El-Aziz Ayman H. Elbadawy Mohamed 《Environmental science and pollution research international》2021,28(36):49447-49466
Environmental Science and Pollution Research - Cancer, a major public health problem, is one of the world’s top leading causes of death. Common treatments for cancer include cytotoxic... 相似文献
55.
Giuseppe Mascaro Abdinur Hussein Aubrey Dugger David J. Gochis 《Journal of the American Water Resources Association》2023,59(1):49-70
The National Water Model (NWM) will provide the next generation of operational streamflow forecasts across the United States (U.S.) using the WRF-Hydro hydrologic model. In this study, we propose a strategy to calibrate 10 parameters of WRF-Hydro that control runoff generation during floods and snowmelt seasons, and due to baseflow. We focus on the Oak Creek Basin (820 km2), an unregulated mountainous sub-watershed of the Salt and Verde River Basins in Arizona, which are the largest source of water supply for the Phoenix Metropolitan area. We calibrate the model against discharge observations at the outlet in 2008–2011, and validate it at two stream gauging stations in 2012–2016. After bias correcting the precipitation forcings, we sequentially modify the model parameters controlling distinct runoff generation processes in the basin. We find that capturing the deep drainage to the aquifer is crucial to improve the simulation of all processes and that this flux is mainly controlled by the SLOPE parameter. Performance metrics indicate that snowmelt, baseflow, and floods due to winter storms are simulated fairly well, while flood peaks caused by summer thunderstorms are severely underestimated. We suggest the use of spatially variable soil depth to enhance the simulation of these processes. This work supports the ongoing calibration effort of the NWM by testing WRF-Hydro in a watershed with a large variety of runoff mechanisms that are representative of several basins in the southwestern U.S. 相似文献
56.
Chaher Nour El Houda Chakchouk Mehrez Nassour Abdallah Nelles Michael Hamdi Moktar 《Environmental science and pollution research international》2021,28(34):46540-46552
Environmental Science and Pollution Research - Solid waste management and disposal is one of the most significant challenges facing urban communities around the world. There is a wide range of... 相似文献
57.
Chin Wei Tan Kok Hong Tan Yit Thai Ong Abdul Rahman Mohamed Sharif Hussein Sharif Zein Soon Huat Tan 《Environmental Chemistry Letters》2012,10(3):265-273
Energy and environment are major global issues inducing environmental pollution problems. Energy generation from conventional fossil fuels has been identified as the main culprit of environmental quality degradation and environmental pollution. In order to address these issues, nanotechnology plays an essential role in revolutionizing the device applications for energy conversion and storage, environmental monitoring, as well as green engineering of environmental friendly materials. Carbon nanotubes and their hybrid nanocomposites have received immense research attention for their potential applications in various fields due to their unique structural, electronic and mechanical properties. Here, we review the applications of carbon nanotubes (1) in energy conversion and storage such as in solar cells, fuel cells, hydrogen storage, lithium ion batteries and electrochemical supercapacitors, (2) in environmental monitoring and wastewater treatment for the detection and removal of gas pollutants, pathogens, dyes, heavy metals and pesticides and (3) in green nanocomposite design. Integration of carbon nanotubes in solar and fuel cells has increased the energy conversion efficiency of these energy conversion applications, which serve as the future sustainable energy sources. Carbon nanotubes doped with metal hydrides show high hydrogen storage capacity of around 6?wt% as a potential hydrogen storage medium. Carbon nanotubes nanocomposites have exhibited high energy capacity in lithium ion batteries and high specific capacitance in electrochemical supercapacitors, in addition to excellent cycle stability. High sensitivity and selectivity towards the detection of environmental pollutants are demonstrated by carbon nanotubes based sensors, as well as the anticipated potentials of carbon nanotubes as adsorbent to remove environmental pollutants, which show high adsorption capacity and good regeneration capability. Carbon nanotubes are employed as reinforcement material in green nanocomposites, which is advantageous in supplying the desired properties, in addition to the biodegradability. This article presents an overview of the advantages imparted by carbon nanotubes in electrochemical devices of energy applications and green nanocomposites, as well as nanosensor and adsorbent for environmental protection. 相似文献
58.
Maha Ahmed Mohamed Abdallah 《Journal of Coastal Conservation》2014,18(1):1-10
The distribution of Cr between water, total suspended matter (TSM) and sediments in the maine harbour in Egypt (Western Harbour), has been studied in two surveys. Dissolved Cr displayed a negative association with salinity, indicating land sources outlets as a major source of inputs for it. The Harbour presents higher Cr concentrations in dissolved form above the background (0.17 μg/L) concentration for total dissolved Cr. The most important factors controlling the distribution of particulate Cr in the Western Harbour are the depositional from several activities inside the Harbour, as well as different charges from several landbased sources along its southern edge. Chromium was associated in decreasing amount in the: residual >oxidizable-organic >acid reducible >exchangeable fractions of the analyzed sediments. Therefore, the results indicate that Cr in sediments from W.H is not available for exchange and/or release into the marine environment. 相似文献
59.
Ragini Pirarath Palani Shivashanmugam Asad Syed Abdallah M. Elgorban Sambandam Anandan Muthupandian Ashokkumar 《Frontiers of Environmental Science & Engineering》2021,15(1):15
60.
Can machines recognise stress in plants? 总被引:2,自引:0,他引:2
Ronald?Maldonado-RodriguezEmail author Stancho?Pavlov Alberto?Gonzalez Abdallah?Oukarroum Reto?J.?Strasser 《Environmental Chemistry Letters》2003,1(3):201-205
In this paper we show that chlorophyll a fluorescence signals analysed with the self-organizing map (SOM) can be used as a routine tool for the monitoring and classification of pea varieties (Pisum sativum) according to their degree of resistance against drought stress. Fluorescence kinetics measurements were obtained from non-stressed plants. The aim of this study is to evaluate the applicability of artificial intelligence techniques in eco-physiological research. Our goal is to provide a fast tool that will contribute to the knowledge needed to develop strategies that would help to decrease the impact of environmental stress in agriculture and forestry. 相似文献