Results 21 to 30 of about 72,590 (284)

In situ LA-ICP-MS Determination of Trace Elements in Magnetite from a Gypsum-Salt Bearing Iron Deposit and Geochemical Characteristics

open access: yesYankuang ceshi, 2022
BACKGROUND Gypsum-salt formation affects the oxygen fugacity of ore-forming fluid and changes the fluid composition, and then affects the trace element composition, which plays an important indicator role in the formation of iron ore deposits. Therefore,
HU Liang   +4 more
doaj   +1 more source

Synthesis and characterization of poly(styrene-co-divinylbenzene) and nanomagnetite structures

open access: yesMethodsX, 2022
The use of iron oxide nanoparticles for the synthesis of adsorbents materials with application in contaminated water remediation is based on both their magnetic and adsorption properties.
Mariana de Oliveira Reis   +2 more
doaj   +1 more source

Discussion on Novel Measurement Method of Iron and Titanium in Vanadium Titanium Magnetite Beneficiation Process

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mineral processing engineering. Vanadium titanium magnetite is an important strategic resource in China. The traditional element measure method is difficult to directly answer the problems such as the promotion space of ...
Chao Chen   +4 more
doaj   +1 more source

Low-temperature magnetic properties of magnetite [PDF]

open access: yes, 2000
Although several studies have recommended removal of secondary components of magnetic remanence by zero-field cycling from room temperature to a temperature much lower than the low temperature transition for magnetite (about 120 K), the method has not ...
Wyn Williams   +3 more
core   +1 more source

Magnetostatic interactions in a natural magnetite-ulvospinel system [PDF]

open access: yes, 2006
[ 1] Magnetostatic interactions have been investigated in anintergrown material consisting of similar to 200-nm magnetite blocksseparated by similar to 30-nm-wide ulvospinel lamellae. First-orderreversal curve (FORC) measurements provide a direct measure
Evans, Michael E.   +7 more
core   +1 more source

Stability Improvement of Humic Acid as Sorbent through Magnetite and Chitin Modification

open access: yesJurnal Kimia Sains dan Aplikasi, 2020
Stability improvement of humic acid (HA) through modification of HA by chitin (HA-chitin) followed by a coating of HA-chitin on magnetite has been successfully performed.
Bambang Rusdiarso, Rahmat Basuki
doaj   +1 more source

Low-temperature cooling behavior of single-domain magnetite: Forcing of the crystallographic axes and interactions [PDF]

open access: yes, 2006
Low-temperature cycling (LTC) of magnetic remanences carried by rocks has become a standard technique in paleomagnetism, rock magnetism, and environmental magnetism as a means of identifying mineralogy and grain size.
Williams, Wyn; id_orcid
core   +1 more source

Crystal-chemical and biological controls of trace and minor element incorporation into magnetite nanocrystals [PDF]

open access: yes, 2021
Magnetite nanoparticles possess numerous fundamental, biomedical and industrial applications, many of which depend on tuning the magnetic properties. This is often achieved by the incorporation of trace and minor elements into the magnetite lattice. Such
Matthieu, Amor   +2 more
core   +3 more sources

Electrical conductivity of magnetite‐bearing serpentinite during shear deformation

open access: yesGeophysical Research Letters, 2012
Electrical conductivity of serpentinite with various amounts of magnetite was measured during shear deformation at high pressure and temperatures (P = 1.0 GPa, T = 750 K) corresponding to mantle wedge conditions to evaluate the contribution of aligned ...
Seiya Kawano   +2 more
doaj   +1 more source

Functional analysis of the magnetosome island in Magnetospirillum gryphiswaldense: the mamAB operon is sufficient for magnetite biomineralization [PDF]

open access: yes, 2011
Bacterial magnetosomes are membrane-enveloped, nanometer-sized crystals of magnetite, which serve for magnetotactic navigation. All genes implicated in the synthesis of these organelles are located in a conserved genomic magnetosome island (MAI).
Voigt Birgit   +35 more
core   +2 more sources

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