Results 21 to 30 of about 24,708 (261)

The Abundance and Behavior of Viruses in Ancient Seawater and Modern Iron-rich Environments [PDF]

open access: yes, 2011
The proclivity of silica for ferric hydroxide sorption sites allows for an Archean iron cycle involving iron-silica co-precipitation and deposition of banded iron formations (BIF).
Liu, Hanna Ken-Yuin
core   +1 more source

Safety Implications of High-Field MRI: Actuation of Endogenous Magnetic Iron Oxides in the Human Body [PDF]

open access: yes, 2009
Background: Magnetic Resonance Imaging scanners have become ubiquitous in hospitals and high-field systems (greater than 3 Tesla) are becoming increasingly common.
Garcia-Prieto, A   +11 more
core   +1 more source

Comprehensive evaluation of manganese oxides and iron oxides as metal substrate materials for constructed wetlands from the perspective of water quality and greenhouse effect

open access: yesEcotoxicology and Environmental Safety, 2021
Manganese oxides and iron oxides have been widely introduced in constructed wetlands (CWs) for sewage treatment due to their extensiveness in nature and their ability to participate in various reactions, but their effects on greenhouse gas (GHG ...
Shiyi Cheng   +6 more
doaj   +1 more source

Progress in Iron Oxides Based Nanostructures for Applications in Energy Storage

open access: yesNanoscale Research Letters, 2021
The demand for green and efficient energy storage devices in daily life is constantly rising, which is caused by the global environment and energy problems.
Linfeng Lv   +8 more
doaj   +1 more source

Corrosion Behavior of Pipeline Carbon Steel under Different Iron Oxide Deposits in the District Heating System

open access: yesMetals, 2017
The corrosion behavior of pipeline steel covered by iron oxides (α-FeOOH; Fe3O4 and Fe2O3) was investigated in simulated district heating water. In potentiodynamic polarization tests; the corrosion rate of pipeline steel is increased under the iron oxide
Yong-Sang Kim, Jung-Gu Kim
doaj   +1 more source

Pedogenic Forms of Iron in Soils Developed from Four Parent Materials

open access: yesJournal of Tropical Soils, 2020
Information on the distribution of various forms of iron in soils are valuable in the study of soil genesis. The objective of this study was to to evaluate the pedogenic forms of iron in soils developed over basement complex and basaltic parent materials
Ayodele Owonubi
doaj   +1 more source

Iron oxides as efficient sorbents for CO2 capture

open access: yesJournal of Materials Research and Technology, 2019
Carbon dioxide capture/release reactions using magnetite, Fe3O4, and hematite, Fe2O3, as sorbents were studied. Kinetics of mechanically activated chemical reactions between iron oxides and CO2 was investigated as a function of CO2 pressure and planetary
Eduin Yesid Mora Mendoza   +6 more
doaj   +1 more source

From Iron Oxides to Infections [PDF]

open access: yesChemSusChem, 2008
AbstractCellular electron transfer under diverse anaerobic conditions is a primary topic of research conducted by the Newman group. In this Viewpoint, a summary is given of how a geobiological approach has been used to investigate these processes.magnified ...
openaire   +4 more sources

Thermodynamic analysis of two-step solar water splitting with mixed iron oxides

open access: yes, 2009
A two-step thermochemical cycle for solar production of hydrogen from water has been developed and investigated. It is based on metal oxide redox pair systems, which can split water molecules by abstracting oxygen atoms and reversibly incorporating ...
Roeb, Martin   +4 more
core   +1 more source

Global mapping of iron and titanium oxides in the lunar megaregolith and subsurface [PDF]

open access: yes, 2007
[Abstract]: This paper reports mapping results obtained by remote sensing analysis of Iron and Titanium oxides in the megaregolith under the lunar Highlands regolith and in the subsurface under the Mare and South Pole Aitken basin regolith.
Jackson, Noel William, Carter, B. D.
core   +1 more source

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