Results 31 to 40 of about 2,805 (245)

Deciphering geochemical indicators controlling the fossil groundwater quality in some localities, western desert, Egypt

Applied Water Science
Groundwater's geochemical indicators significantly impact its appropriateness for drinking, residential, or agricultural use. In this research, the environmental isotope technique was integrated with geochemical and radiological techniques with ...
Abdel-Hameed El-Aassar, Kamilia Hagagg, Rasha Hussien, Hussein Oraby, Hosam Shawky   +4 more
doaj   +1 more source

Determination of the Total Phosphorus Decay Coefficient Based on Hydrological Models in an Artificial Reservoir in the Brazilian Semi-Arid Region

Hydrology
Phosphorus input into surface water is a global concern due to its role in eutrophication, which is especially critical in semi-arid regions with their challenging climatic conditions.
Francisco Josivan de Oliveira Lima, Fernando Bezerra Lopes, Daniel Antônio Camelo Cid, Iran Eduardo Lima Neto, Renan Vieira Rocha, Alyson Brayner Sousa Estácio, Isabel Cristina da Silva Araújo, Nayara Rochelli de Sousa Luna, Michele Cunha Pontes, Arthur Costa Tomaz de Souza, Eunice Maia de Andrade   +10 more
doaj   +1 more source

Towards a fully data-driven prospectivity mapping methodology: A case study of the Southeastern Churchill Province, Québec and Labrador

Artificial Intelligence in Geosciences, 2021
Mineral exploration campaigns are financially risky. Several state-of-the-art methods have been developed to mitigate the risk, including predictive modelling of mineral prospectivity using principal component analysis (PCA) and geographic information ...
Steven E. Zhang, Julie E. Bourdeau, Glen T. Nwaila, David Corrigan   +3 more
doaj   +1 more source

Synergistic Effect on Enhanced Oil Recovery in High Salinity Carbonate Reservoirs Using a Novel PEI‐Functionalized Carbon Nanotube Nanocomposite

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Enhancing oil recovery (EOR) in mature reservoirs is hindered by high interfacial tension (IFT) and oil‐wet rock formations, especially under harsh, high‐salinity conditions. This study aims to overcome these limitations by synthesizing a novel carbon nanotube nanocomposite covalently grafted with polyethylenimine and non‐covalently ...
Mohamed Abu Shuheil, Dilipkumar S. Patel, N. Beemkumar, Tariq Abdulkader Alrihaim, Dhirendra Nath Thatoi, Ripendeep Singh, Rohit Kumar, Parminder Singh, Ahmad Khalid   +8 more
wiley   +1 more source

Introduction to Geochemical Modeling

Eos, Transactions American Geophysical Union, 1995
Estimates of the composition of the mantle and the processes occurring within it require the combined application of geophysics and geochemistry. Albarede's new book provides convenient access to many of the theoretical geochemical methods developed during the last two decades, during which theoretical geochemistry developed considerably.
openaire   +2 more sources

Poseidon's Sanctuary at Samikon—The Discovery of an Ancient Temple Through an Integrated Geophysical and Geoarchaeological Survey Approach for Lagoonal and Swampy Environments

Archaeological Prospection, EarlyView.
ABSTRACT Below the classical fortress of Samikon at the coast of the western Peloponnese, ancient writer Strabo mentioned a sanctuary of Poseidon which served as the centre of the religious association of the Triphylian cities. In this paper, we describe the discovery and investigation of a building structure by means of geophysical and ...
Dennis Wilken, Birgitta Eder, Sarah Bäumler, Elena Appel, Peter Fischer, Tina Georg, Federica Iannone, Lena Slabon, Timo Willershäuser, Erofili‐Iris Kolia, Andreas Vött   +10 more
wiley   +1 more source

Redefining the Nitrogen Cycle Through Electronic Configuration Driven Electrocatalysis for Low Carbon Energy

Carbon Energy, EarlyView.
This review reveals how electronic configuration engineering governs the entire electrocatalytic nitrogen cycle, providing structure‐informed insights into reaction selectivity, catalytic durability, and sustainable nitrogen utilization across energy and environmental systems. ABSTRACT The global nitrogen cycle is essential to food production, chemical
Jiamu Feng, Linai Zhou, Mincan Yang, Aoxiang Zhu, Zengfeng Wei, Weilin Xu, Jia Li, Jun Wan   +7 more
wiley   +1 more source

Modelling the Impact of Engineered Barrier Degradation on Radionuclide Release from a Lithuanian Near-Surface Repository

Applied Sciences
Cementitious materials are widely used as engineered barriers in radioactive waste repositories due to their low permeability and ability to sorb radionuclides.
Povilas Balčius, Dalia Grigaliūnienė, Gytis Bartkus, Povilas Poškas   +3 more
doaj   +1 more source

The Rich Chemistry of Ionized Methanol With Sulfur Dioxide: Pathways to Prebiotic and Elusive Species in Earth's Atmosphere and Space

Chemistry – A European Journal, EarlyView.
The reaction between the methanol radical cation and sulfur dioxide is remarkably fast and forms several ionic and neutral products (HOSOH+, CH2OSO+, CH2OH+, CH2O, H2O, HSO2). The chemistry goes beyond simple proton or hydrogen transfer, revealing a close interaction between the two species, relevant to atmospheric and astrochemical environments where ...
Mauro Satta, Daniele Catone, Mattea Carmen Castrovilli, Antonella Cartoni   +3 more
wiley   +1 more source

Computational modelling of geochemical speciation of the trace metals in the wastewater treatment process optimization

Applied Water Science, 2022
The speciation of trace metals in the wastewater treatment plants determines its ultimate fate in natural surface waters due to biological and chemical processes.
Anthony Njuguna Matheri, Belaid Mohamed, Freeman Ntuli, Jane Catherine Ngila, Caliphs Zvinowanda   +4 more
doaj   +1 more source