Results 31 to 40 of about 128,731 (297)

Magnetite-boosted syntrophic conversion of acetate to methane during thermophilic anaerobic digestion

open access: yesWater Science and Technology
Using a batch thermophilic anaerobic system established with 60 mL serum bottles, the mechanism on how microbial enrichments obtained from magnetite-amended paddy soil via repeated batch cultivation affected methane production from acetate was ...
Zi-Fan Wu   +3 more
doaj   +1 more source

Magnetic irreversibility and Verwey transition in nano-crystalline bacterial magnetite [PDF]

open access: yes, 2007
The magnetic properties of biologically-produced magnetite nanocrystals biomineralized by four different magnetotactic bacteria were compared to those of synthetic magnetite nanocrystals and large, high quality single crystals.
A. Aharoni   +12 more
core   +4 more sources

Selectivity of Malachite Green on Cationic Dye Mixtures Toward Adsorption on Magnetite Humic Acid

open access: yesEnvironment and Natural Resources Journal, 2022
Magnetite humic acid (MHA) was successfully synthesized by the coprecipitation method followed by hydrothermal process, as evidenced by the XRD, FTIR, VSM, and SEM analysis characterization results.
Nur Ahmad   +3 more
doaj   +1 more source

The structure and petrology of the Cnoc nan Cuilean Intrusion, Loch Loyal Syenite Complex, NW Scotland [PDF]

open access: yes, 2013
In NW Scotland, several alkaline intrusive complexes of Silurian age intrude the Caledonian orogenic front. The most northerly is the Loch Loyal Syenite Complex, which is divided into three separate intrusions (Ben Loyal, Beinn Stumanadh and Cnoc nan ...
Goodenough, Kathryn M.   +5 more
core   +3 more sources

Simulation of Porous Magnetite Deposits on Steam Generator Tubes in Circulating Water at 270 °C

open access: yesCrystals, 2020
In the secondary side of pressurized water reactors (PWRs), the main corrosion product accumulated on the steam generator (SG) tubes is magnetite, which has a porous structure. The purpose of this work is to simulate the porous magnetite deposited to the
Soon-Hyeok Jeon   +4 more
doaj   +1 more source

Microtextures and microintergrowths of irontitanium-aluminium oxide minerals in a magmatic tinaniferous iron ore from Attu island, southwestern Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1977
Microtextures of coexisting magnetite, ilmenite and aluminous spinel and their chemical composition have been studied in a magmatic titaniferous iron ore from Attu Island in south-western Finland.
H. van Lamoen
doaj   +1 more source

A preliminary Scanning Electron Microscope (SEM) study of magnetite surface microtextures from the Wahianoa moraines, Mt Ruapehu, New Zealand. [PDF]

open access: yes, 2010
Scanning electron microscope (SEM) of quartz micro‐textures has routinely been used to identify the depositional environment of sediments in areas of former ice‐sheet glaciation.
Brook, Martin S, Mandolla, Stephanie
core  

Characterization of a Recyclate‐Based MgO‐Steel Composite As‐Sintered Inert Anode Candidate After Exposure to Cryolite Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Carbon‐free inert anodes are essential for decarbonizing aluminum electrolysis. This study investigates a recyclate‐based MgO‐316L steel composite anode tested under galvanostatic Hall–Héroult conditions in cryolite at 1000°C. Microstructural analysis reveals selective MgO fluorination, spinel and oxide layer formation, electrolyte infiltration, and ...
Serhii Yaroshevskyi   +7 more
wiley   +1 more source

Silica Magnetite Adsorbent: Effect of Drying Temperature of Silica Sol Gel on Magnetite Core Structure

open access: yesJurnal Kimia Sains dan Aplikasi, 2018
Recently, magnetite was investigated as water purification adsorbent because it’s unique magnetic properties that improved the adsorption efficiency through desorption process.
Choiril Azmiyawati   +2 more
doaj   +1 more source

Synthesis and Characterization of Magnetic Nanomaterials with Adsorptive Properties of Arsenic Ions

open access: yesMolecules, 2020
A new synthesis method of hybrid Fe3O4/C/TiO2 structures was developed using microwave-assisted coprecipitation. The aim of the study was to examine the effect of the addition of glucose and titanium dioxide on adsorptive properties enabling removal of ...
Agnieszka Wojciechowska   +1 more
doaj   +1 more source

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