Results 41 to 50 of about 222 (138)

Multi‐Walled Carbon Nanotube‐Modified Carbon Paste Electrode for Fipronil Detection in Environmental Samples

Electroanalysis, Volume 37, Issue 7, July 2025.
A nanostructured carbon paste sensor modified with 20% multi‐walled carbon nanotubes (MWCNTs) was developed for the detection of Fipronil. The sensor showed enhanced electrochemical performance, with a limit of detection of 0.377 µmol L‐1. It demonstrated good stability, selectivity, and high recovery in water samples, highlighting the potential of ...
Mariane Ribas Lourenço, Guilherme Sales da Rocha, Daniel Ananias Reis de Campos, Helen Conceição Ferraz, João Victor Nicolini   +4 more
wiley   +1 more source

The Last Mile: Safety Management Implementation in Construction Sites

Advances in Civil Engineering, Volume 2018, Issue 1, 2018., 2018
To deepen the understanding of the construction safety accidents rules as well as identify and cure the crux of construction safety management failures in China, we analyzed the status quo of safety management and identified the “last mile” problem, that is, the failure of implementation of the extensive legal and regulatory systems on the construction
Tingshen Zhao, Seyed Ebrahim Kazemi, Wen Liu, Miao Zhang, Yingbin Feng   +4 more
wiley   +1 more source

Precise assessment of flood risk and accurate allocation of disaster relief funds through a fuzzy set approach

Journal of Flood Risk Management, Volume 17, Issue 4, December 2024.
Abstract The traditional flood hazard assessment system for emergency departments is based on the average hazard index of administrative regions. However, this approach may overlook errors with significant hazards caused by the transition from watershed hazard maps to administrative hazard maps.
Yudong Wang, Xida Yu, Lanjia Yi, Yun Chen, Qi Ao, Wenjun Shi, Lingyun Huang   +6 more
wiley   +1 more source

Automatic Calibration of an Unsteady River Flow Model by Using Dynamically Dimensioned Search Algorithm

Mathematical Problems in Engineering, Volume 2017, Issue 1, 2017., 2017
Dynamically dimensioned search (DDS) algorithm is a new‐type heuristic algorithm which was originally developed by Tolson and Shoemaker in 2007. In this study, the DDS algorithm is applied to automate the calibration process of an unsteady river flow model in the Tamsui River basin, which was developed by Wu et al. (2007). Data observed during 2012 and
Fu-Ru Lin, Nan-Jing Wu, Chen-Hao Tu, Ting-Kuei Tsay, Paolo Lonetti   +4 more
wiley   +1 more source

“Captains of the Sands”: Urban Illicit Ecologies and Sandscapes in Rio de Janeiro

Antipode, Volume 56, Issue 5, Page 1775-1801, September 2024.
Abstract Urban Political Ecology (UPE) has explored human–soil relations, emphasising the political dimensions of environmental degradation in and through urbanisation. However, UPE lacks critical reflection on governance collusions with illicit actors.
Frank I. Müller
wiley   +1 more source

Reservoir Mud Releasing May Suboptimize Fluvial Sand Supply to Coastal Sediment Budget: Modeling the Impact of Shihmen Reservoir Case on Tamsui River Estuary

Water Resources Research, Volume 60, Issue 6, June 2024.
Abstract Regular release of sediment from reservoir has been increasingly adopted as a strategy for sustainable management. Here, we use a process‐based morphodynamic model to simulate the estuarine sediment dynamics impacted by turbidity current venting implemented by the Shihmen Reservoir during three typhoon events in 2008.
Yu‐Ta Hsueh, Fu‐Chun Wu, Qinghua Ye, Steven Y. J. Lai, Yinphan Tsang   +4 more
wiley   +1 more source

Using spatiotemporal ratio analyses to quantitatively estimate water quality recovery of the Rio Doce

Integrated Environmental Assessment and Management, Volume 20, Issue 1, Page 74-86, January 2024.
Abstract The Fundão Dam breached on 5 November 2015 (the “Event”), resulting in the release of tailings, water, scoured sediment and/or soil, and other debris to downstream watercourses. Statistical analyses using historical and recent water quality measurements were conducted to assess the extent to which water quality in the Rio Doce was recovering ...
Michael Wild, Shahrokh Rouhani, Jacob Oehrig, Pedro H. G. Alves, William Odle, Diogo F. A. Gaspar   +5 more
wiley   +1 more source

Determination of 4-Nonylphenol in Surface Waters of the Guandu River Basin by High Performance Liquid Chromatography with Ultraviolet Detection

Journal of the Brazilian Chemical Society, 2018
4-Nonylphenol, a degradation product of ethoxylated alkylphenols, due to its harmful effects on the environment, has been banned in European Union countries, alongside their precursors. The guide on quality of drinking water from the United States Environmental Protection Agency (US EPA) recommends a maximum concentration of 28 µg L-1 for fresh water ...
Araujo, Frederico G. de, Bauerfeldt, Glauco F., Cid, Yara P.   +2 more
openaire   +3 more sources

Variação sazonal dos metazoários parasitos de Geophagus brasiliensis (Perciformes: Cichlidae) no rio Guandu, Estado do Rio de Janeiro, Brasil = Seasonal variation of metazoan parasites of Geophagus brasiliensis (Perciformes: Cichlidae) from the Guandu river, State of Rio de Janeiro, Brazil

Acta Scientiarum: Biological Sciences, 2010
O presente trabalho estuda a variação sazonal dos metazoários parasitos de Geophagus brasiliensis do rio Guandu, Estado do Rio de Janeiro, Brasil. Para isso foram realizadas quatro coletas trimestrais de 50 espécimes de G.
Adriano Reder de Carvalho, Luiz Eduardo Roland Tavares, José Luis Luque   +2 more
doaj  

Spatio-Temporal Variation of Water Quality in the Guandu River Basin: an Approach to Water Resources Management

Water, Air, & Soil Pollution
Abstract Efficient water resources management relies on spatiotemporal water quality analysis, particularly in the Guandu River basin, the main water supply source for the Rio de Janeiro Metropolitan Region. This study aims to perform a spatiotemporal analysis of water quality parameters and indices in the Guandu River basin ...
Erleyvaldo Bispo dos Santos, Micael de Souza Fraga, Albert Luiz Suhett, Gabriela Miranda Teixeira, Elisangela Broedel, Patrícia Ferreira da Silva, Gisleine Cunha-Zeri, Marcelo Zeri, Marcel Carvalho Abreu   +8 more
openaire   +1 more source