Results 51 to 60 of about 72,590 (284)

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

Trace elements in magnetite from the Jõhvi magnetite-rich gneisses in northeastern Estonia: implications for the genesis and alteration of iron mineralisation [PDF]

open access: yesEstonian Journal of Earth Sciences
The study aimed to determine the origin of iron mineralisation in the crystalline basement beneath the Jõhvi magnetic anomaly through the trace element geochemistry of magnetite.
Siim Nirgi   +5 more
doaj   +1 more source

Viability of Bradyrhizobium japanicum on soybean seeds enhanced by magnetite nanoparticles during desiccation [PDF]

open access: yes, 2010
The aim of this study was to investigate whether magnetite nanoparticles affect the viability of Bradyrhizobium japanicum cells residing on the surface of soybean seeds during desiccation.
Ghalamboran, M. R., Ramsden, Jeremy J.
core   +3 more sources

Coordinated Architectural and Chemical Reinforcement in the Crushing Mandible of a Soldier Termite

open access: yesAdvanced Functional Materials, EarlyView.
The crushing mandible of a soldier termite withstands substantial biting loads despite lacking mineral. Its cuticle is partitioned: convex teeth pair hardness and zinc enrichment with aligned chitin fibers for contact durability, while stiffer concave regions between teeth carry bending loads.
Andrew Tran Nguyen   +16 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

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

Chitin‐Derived Carbon‐Metal Functional Materials

open access: yesAdvanced Functional Materials, EarlyView.
Functional carbon materials are synthesized from combination of biopolymer (chitin) and iron precursors. The resultant material exhibits superior surface area and adsorptive properties compared to carbon materials synthesized directly from pure chitin.
Herry Fang   +7 more
wiley   +1 more source

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

Magneto‐Ionic Devices With Polymer‐Based Electrolytes

open access: yesAdvanced Functional Materials, EarlyView.
Polymer electrolytes are introduced for magneto‐ionic devices based on hydroxide and hydrogen ions. The magneto‐ionic effect results in a pronounced voltage‐controlled variation of coercivity in both devices. The switching speed is in the range of 100 ms.
Markus Gößler   +3 more
wiley   +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

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