Results 21 to 30 of about 233,674 (199)

Iron oxides dynamics in a subtropical Brazilian Paleudult under long-term no-tillage management

open access: yesScientia Agricola, 2013
Replacing conventional tillage (CT) with no-tillage (NT) management alters the pedoenvironment and the rate of topsoil processes, with possible effects on dissolution processes associated with iron oxides and therefore soil mineralogy.
Alberto Vasconcellos Inda   +4 more
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

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

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

The iron-oxidizing proteobacteria [PDF]

open access: yesMicrobiology, 2011
The ‘iron bacteria’ are a collection of morphologically and phylogenetically heterogeneous prokaryotes. They include some of the first micro-organisms to be observed and described, and continue to be the subject of a considerable body of fundamental and applied microbiological research.
Sabrina, Hedrich   +2 more
openaire   +2 more sources

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

Selectivity of soil constituents by termites in the construction of Brazilian termite mounds [PDF]

open access: yesScientia Agricola, 2023
Termites can create structures that alter the physical and chemical properties of soils. In this process, termites are selective about the soil constituents they will use to construct their mounds.
Tatiele Fruett   +5 more
doaj   +1 more source

Mercury removal in wastewater by iron oxide nanoparticles [PDF]

open access: yes, 2016
Mercury is one of the persistent pollutants in wastewater; it is becoming a severe environmental and public health problem, this is why nowadays its removal is an obligation.
C Hincapié   +9 more
core   +2 more sources

Synthesis and heating effect of iron/iron oxide composite and iron oxide nanoparticles [PDF]

open access: yesSPIE Proceedings, 2007
Fe/Fe oxide nanoparticles, in which the core consists of metallic Fe and the shell is composed of Fe oxides, were obtained by reduction of an aqueous solution of FeCl3 within a NaBH4 solution, or, using a water-in-oil micro-emulsion with CTAB as the surfactant.
Q, Zeng   +4 more
openaire   +2 more sources

Antiferromagnetic order and spin dynamics in iron-based superconductors [PDF]

open access: yes, 2015
High-transition temperature (high-$T_c$) superconductivity in the iron pnictides/chalcogenides emerges from the suppression of the static antiferromagnetic order in their parent compounds, similar to copper oxides superconductors.
Dai, Pengcheng
core   +1 more source

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