A Magnetic Investigation of the Scuttled, German Danube Flotilla and of the Risks it Poses

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. This study reports the first magnetic investigation of PM2.5 (PM with aerodynamic size below 2.5 μm) in Africa performed on weekly PM2.5 filters collected in Abidjan (Ivory Coast) and Cotonou (Benin) between 2015 and 2017. The magnetic mineralogy is dominated by magnetite-like low coercivity minerals. Mass normalized SIRM are 1.65 × 10−2 A m2 kg−1 and 2.28 × 10−2 A m2 kg−1 for Abidjan and Cotonou respectively. Hard coercivity material (S-ratio = 0.96 and MDF = 33 mT) is observed during the dry dusty season. Wood burning emits less iron oxides by PM2.5 mass when compared to traffic sources. PM2.5 magnetic granulometry has a narrow range regardless of the site or season. The excellent correlation between the site-averaged element carbon concentrations and SIRM suggests that PM2.5 magnetic parameters are linked to primary particulate emission from combustion sources.

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Regulating the magnetic dynamics of mononuclear β-diketone Dy(iii) single-molecule magnets through the substitution effect on capping N-donor coligands

Dalton Transactions ◽

10.1039/d0dt03780j ◽

2021 ◽

Vol 50 (6) ◽

pp. 2102-2111

Author(s):

Jing Xi ◽

Xiufang Ma ◽

Peipei Cen ◽

Yuewei Wu ◽

Yi-Quan Zhang ◽

...

Keyword(s):

Ab Initio ◽

Single Molecule ◽

Substitution Effect ◽

Single Molecule Magnets ◽

Magnetic Dynamics ◽

Magnetic Investigation

Substituent change modulates the coordination symmetries and magnetic dynamics of five mononuclear β-diketonate-Dy(iii) complexes with capping N-donor coligands, which is studied by the combination of magnetic investigation and ab initio calculation.

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Structural and magnetic investigation of metastable alloy phases in Bi–Co multilayers

Journal of Alloys and Compounds ◽

10.1016/s0925-8388(03)00655-8 ◽

2004 ◽

Vol 365 (1-2) ◽

pp. 43-48 ◽

Cited By ~ 4

Author(s):

G.H. Yang ◽

J.B. Chen ◽

B. Zhao ◽

F. Pan

Keyword(s):

Magnetic Investigation ◽

Metastable Alloy

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Up/down conversion luminescence properties of (Na0.5Gd0.5)MoO4:Ln3+(Ln = Eu, Tb, Dy, Yb/Er, Yb/Tm, and Yb/Ho) microstructures: synthesis, morphology, structural and magnetic investigation

New Journal of Chemistry ◽

10.1039/c4nj00165f ◽

2014 ◽

Vol 38 (8) ◽

pp. 3480-3491 ◽

Cited By ~ 44

Author(s):

Rajagopalan Krishnan ◽

Jagannathan Thirumalai

Keyword(s):

Luminescence Properties ◽

Magnetic Investigation ◽

Down Conversion

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Structural and Magnetic Investigation of the Ferromagnetic ZnO:Co Nanotubes Fabricated by Electrophoretic Deposition Method

Asian Journal of Chemistry ◽

10.14233/ajchem.2013.14300 ◽

2013 ◽

Vol 25 (11) ◽

pp. 6173-6176 ◽

Cited By ~ 2

Author(s):

Jianjun Li ◽

Jinbo Zhu ◽

Liting Zhang ◽

Yin Liu ◽

Weichang Hao

Keyword(s):

Electrophoretic Deposition ◽

Deposition Method ◽

Magnetic Investigation

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Structural and Magnetic Investigation of Cu, Co Substituted NiFe2O4 Thin Films by Scanning Probe Microscopy (AFM, MFM)

Materials Science Forum ◽

10.4028/www.scientific.net/msf.830-831.589 ◽

2015 ◽

Vol 830-831 ◽

pp. 589-591 ◽

Cited By ~ 1

Author(s):

Hakikat Sharma ◽

N.S. Negi

Keyword(s):

Thin Films ◽

Grain Size ◽

Microstructural Analysis ◽

Secondary Phase ◽

Scanning Probe ◽

Force Microscopy ◽

Atomic Force ◽

Magnetic Investigation ◽

Probe Microscope ◽

Xrd Patterns

In the present study we prepared NiFe2O4, Ni0.95Cu0.05Fe2O4and Ni0.94Cu0.05Co0.01Fe2O4thin films by metallo-organic decomposition method (MOD) using spin coating technique. The samples were characterized by XRD. XRD patterns of thin films confirmed the formation of cubic spinel structure without any secondary phase. For microstructural analysis we characterized samples by Scanning Probe Microscope (SPM). From Atomic force microscopy (AFM), we analyzed surface morphology, calculated grain size, roughness and porosity. It has been found that grain size and roughness affected by Cu, Co substitution. After this we carried out magnetic force microscopy (MFM) on the samples. Effect of substitution on magnetic grains was observed from MFM.

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