Results 41 to 50 of about 1,673,384 (128)

Iron‐Based Catalysts on Tailored Alumina Supports for COx‐Free Methane Decomposition to H2 and Carbon

open access: yesChemistryOpen, Volume 15, Issue 9, September 2026.
Fe‐10ZrAl catalyst enables catalytic methane decomposition into COx‐free H2 and solid carbon. ZrO2‐modified alumina improves Fe particle stabilization, reducibility, and carbon growth behavior, giving the best performance among the tested catalysts with 76.5% CH4 conversion and 74.1% H2 yield at 800 °C.
Hajer S. Alturki   +10 more
wiley   +1 more source

Coal Mine Wastewater as a Secondary Resource: Advances in Treatment and Value Recovery Technologies

open access: yesEnvironmental Quality Management, Volume 36, Issue 3, September 2026.
ABSTRACT Coal mine wastewater, which has historically been considered an environmental problem, is becoming more widely recognized as a secondary resource with substantial value recovery potential. Nevertheless, recent progress demonstrates that this wastewater could be converted into highly useful, industrially available pigments (like iron oxides) by
Mokgadi G. Rapeta   +3 more
wiley   +1 more source

An O(h6) cubic spline interpolating procedure for harmonic functions [PDF]

open access: yes, 1989
An O(h6) method for the interpolation of harmonic functions in rectangular do- mains is described and analysed. The method is based on an earlier cubic spline tech- nique [7], and makes use of recent results concerning the a posteriori correction of ...
Soares, M J, Papamichael, N
core   +4 more sources

Aquifer Microbial Communities Differentially Display Metabolisms Capable of Secondary Effects on Uranium Speciation Across a Former Metal Processing Site

open access: yesEnvironmental Microbiology, Volume 28, Issue 9, September 2026.
We performed microbial membership and metabolism measurements across a uranium‐contaminated site's surface and ground waters, then performed analyses relating these metrics to geochemistry at the site. Findings showed variations in the membership, yet mainly similar functional capabilities.
Catherine J. Pettinger   +4 more
wiley   +1 more source

Evaluating the Effect of Binder Constituents on Ferrous Carbonate Formation in Ferrock‐Type Cementitious Binder

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 9, September 2026.
ABSTRACT Several industrial by‐products, process residues, and naturally extracted resources are rich in iron, providing a strong basis to explore their potential as cementitious materials. Cementitious composites in which ferrous carbonate is the primary binding phase have been investigated intermittently over the last decade.
Vineet Shah   +3 more
wiley   +1 more source

Phase Equilibria in the FeO–Fe2O3–Sb2O3–Sb2O5–SiO2 System in Equilibrium With Metal and in Air/Oxygen Atmosphere

open access: yesJournal of the American Ceramic Society, Volume 109, Issue 9, September 2026.
ABSTRACT Experimental study and thermodynamic modeling of the phase equilibria in the FeO–FeO1.5–SbO1.5–SbO2.5–SiO2 system in air and 1 atm oxygen, and in equilibrium with Sb/Sb–Ag metal has been undertaken. Experimental data at 575°C–1600°C were obtained using high‐temperature equilibration of mixtures in sealed silica ampoules, Fe3O4 basket/MgO ...
Hamed Abdeyazdan   +2 more
wiley   +1 more source

Cubic colloids : Synthesis, functionalization and applications

open access: yes, 2015
This thesis is a study on cubic colloids: micron-sized cubic particles with rounded corners (cubic superballs). Owing to their shape, particle packing for cubes is more efficient than for spheres and results in fascinating phase and packing behavior. For
Castillo, S.I.R.   +2 more
core  

Interview with Keith Cubic

open access: yes, 2017
Interview with Keith Cubic by Michael Rupp on March 8, 2016. Keith Cubic has served as the Planning Director for Douglas County, Oregon, since 1978.https://pdxscholar.library.pdx.edu/planoregon_interviews/1029/thumbnail ...
Cubic, Keith, Rupp, Michael
core   +2 more sources

Effects of hematite surface characteristics on filtration process.

open access: yes, 2016
In iron ore pelletizing plants a range of process parameters such as particle size distribution, specific surface area, and moisture, must be controlled to achieve opti¬mized operation conditions.
Lagoeiro, Leonardo Evangelista   +3 more
core   +1 more source

Binding effects in hematite and magnetite concentrates

open access: yes, 2011
An industrial taconite facility, \u27Plant F\u27, processed both magnetite and hematite ores during the year. The concentrates were pelletized with a binder, bentonite. Plant personnel believed less bentonite was required to make hematite pellets.
Joseph A. Halt   +3 more
core   +1 more source

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