Results 31 to 40 of about 6,091 (148)

Barking up the Right Tree: Using Tree Bark to Track Airborne Particles in School Environment and Link Science to Society

GeoHealth, 2022
Children's exposure to air pollution affects both their health and learning skills. Fine and ultrafine particulate matter (PM2.5, PM1), notably issued from traffic sources in urban centers, belong to the most potential harmful health hazards.
A. d. S. Leite, S. Rousse, J.‐F. Léon, R. I. F. Trindade, S. Haoues‐Jouve, C. Carvallo, M. Dias‐Alves, A. Proietti, E. Nardin, M. Macouin   +9 more
doaj   +1 more source

Magnetic Susceptibility Properties of Loess From the Willendorf Archaeological Site: Implications for the Syn/Post-Depositional Interpretation of Magnetic Fabric

Frontiers in Earth Science, 2021
At the Willendorf site Upper Paleolithic archeological layers associated to early Aurignacian cultures were found. The environmental conditions of the associated society, potentially co-existing with Neanderthal groups, is still not fully understood ...
Christian Zeeden, Christian Zeeden, Ulrich Hambach   +2 more
doaj   +1 more source

PM2.5 Magnetic Properties in Relation to Urban Combustion Sources in Southern West Africa

Atmosphere, 2021
The physico-chemical characteristics of particulate matter (PM) in African cities remain poorly known due to scarcity of observation networks. Magnetic parameters of PM are robust proxies for the emissions of Fe-bearing particles.
Aruã da Silva Leite, Jean-François Léon, Melina Macouin, Sonia Rousse, Ricardo Ivan Ferreira da Trindade, Arnaud Proietti, Loïc Drigo, Paul Yves Jean Antonio, Aristide Barthélémy Akpo, Véronique Yoboué, Cathy Liousse   +10 more
doaj   +1 more source

Magnetic fingerprint of southern Portuguese speleothems and implications for paleomagnetism and environmental magnetism [PDF]

Journal of Geophysical Research: Solid Earth, 2014
AbstractEnvironmental magnetism of speleothems is still in its early stage of development. Here we report on our investigation of the environmental and paleomagnetic information that has been recorded in speleothems, and what are the factors that control its preservation and reliability.
Font, Eric, Veiga-Pires, Cristina, Pozo, Manuel, Carvallo, Claire, de Siqueira Neto, Antonio Carlos, Camps, Pierre, Fabre, Sebastien, Mirao, Jose   +7 more
openaire   +4 more sources

A Detailed Paleoclimate Proxy Record for the Middle Danube Basin Over the Last 430 kyr: A Rock Magnetic and Colorimetric Study of the Zemun Loess-Paleosol Sequence

Frontiers in Earth Science, 2021
In mid-latitude Eurasia, loess-paleosol sequences (LPS) provide the most widespread sedimentary records of Quaternary paleoenvironmental evolution. In the Middle Danube Basin (MDB), these archives cover at least the last million years of climate history,
Christian Laag, Christian Laag, Christian Laag, Ulrich Hambach, Ulrich Hambach, Christian Zeeden, France Lagroix, Yohan Guyodo, Daniel Veres, Mladjen Jovanović, Slobodan B. Marković, Slobodan B. Marković   +11 more
doaj   +1 more source

Magnetic Separation for Environmental Remediation [PDF]

, 1995
Magnetic separation is a physical separation process that segregates materials in a mixture on the basis of magnetic susceptibility. Because all actinides and their compounds and fission products are paramagnetic, and most host materials such as water, graphite, soil, and sand are diamagnetic, magnetic separation methods can be used to extract the ...
Schake, A. R., Avens, L. R., Hill, D. D., Padilla, D. D., Prenger, F. C., Romero, D. A., Worl, L. A., Tolt, T. L.   +7 more
openaire   +1 more source

The Effect of Differential Weathering on The Magnetic Properties of Paleosols: A Case Study of Magnetic Enhancement vs. Magnetic Depletion in the Pleistocene Blackwater Draw Formation, Texas

Frontiers in Earth Science, 2021
The type-section of the Blackwater Draw Formation (BDF) consists of a series of five paleosol horizons developed on eolian deposits and an overlying surficial soil. Previous work has shown that magnetic properties (e.g., χ, ARM, and IRM) as a function of
J. Stine, J.W. Geissman, J.W. Geissman, D.E. Sweet, H. Baird   +4 more
doaj   +1 more source

Biomagnetic Monitoring vs. CFD Modeling: A Real Case Study of Near-Source Depositions of Traffic-Related Particulate Matter along a Motorway

Atmosphere, 2020
A test site located along a 12-lane motorway east of Montpellier, France, is used to evaluate the potential of biomagnetic monitoring on traffic-related particulate matter (PM) to parametrize a computational fluid dynamics (CFD) simulation of the local ...
Sarah Letaïef, Pierre Camps, Thierry Poidras, Patrick Nicol, Delphine Bosch, Romane Pradeau   +5 more
doaj   +1 more source

Synthesis and Characterization of Magnetic Nanocomposites for Environmental Remediation [PDF]

Chemical Engineering Transactions, 2016
In the present study, the effect of nano-magnetite (Fe3O4) content on mechanical and magnetic properties of polypropylene matrix is investigated. Magnetite nanoparticles were successfully synthesized by co- precipitation while the composites were prepared by an ex situ processing method involving solvent casting followed by compression molding.
Shirinova, Habiba, DI PALMA, Luca, SARASINI, Fabrizio, TIRILLO', Jacopo, Ramazanov, Mahammadali A., Hajiyeva, Flora, Sannino, Diana, Polichetti, Massimiliano, Galluzzi, Armando   +8 more
openaire   +3 more sources

Influence of Magnet Particle Shape on Magnetic and Environmental Stability of FDM Polymer-Bonded Magnets

Materials, 2023
In this research, the feasibility of additive manufacturing of permanent bonded magnets using fused deposition modelling (FDM) technology was investigated. The study employed polyamide 12 (PA12) as the polymer matrix and melt-spun and gas-atomized Nd–Fe–B powders as magnetic fillers.
Ana Damnjanović, Nataša Kovačević
openaire   +2 more sources