Results 161 to 170 of about 62,481 (313)

Hydrogen‐Based Reduction of Hematitic Iron Ore in a Fluidized Bed Kinetic Reactor at Elevated Pressures

steel research international, EarlyView.
This study investigates the reduction behavior of two international iron ores, including a synthetic hematite produced by oxidation of magnetite, in a novel fluidized‐bed kinetic reactor at elevated pressures. The reduction takes place at various temperatures (650°C, 700°C, and 750°C), and various hydrogen partial pressures (30, 55, and 80 vol% H2 ...
Valentina Nigitz, Aaron Wieder, Sandra Jezernik, Christoph Ahr, Mark Berchtold, Franz Winter   +5 more
wiley   +1 more source

A model carbonized papyrus scroll opens a novel path to identifying readable scrolls of the Herculaneum Library. [PDF]

PLoS One
Seiler D, LaManna JM, McOsker M, Kreimer D, Daugherty MC, Dopke J.   +5 more
europepmc   +1 more source

Experimental and Computational Investigation of Slag–Refractory Interactions Under Conditions Relevant to Hydrogen Plasma Smelting Reduction

steel research international, EarlyView.
This study investigates how slag interacts with magnesia–carbon (MgO–C) refractories under conditions relevant to hydrogen plasma smelting reduction. High‐temperature refractory wear tests are combined with thermodynamic modeling to examine refractory dissolution into slag and slag infiltration into the refractory.
Eeli‐Matti Sassi, Eetu‐Pekka Heikkinen, Tero Vuolio, Riku Mattila, Ville‐Valtteri Visuri   +4 more
wiley   +1 more source

Quantitative light element profiling in plant tissues with monochromatic X-ray fluorescence analysis: a new frontier for abiotic stress studies. [PDF]

J Exp Bot
Kahlon PS, Kokkinopoulou P, Bugallo Alfageme S, Leong CK, Zhang C, Chen Z, Testerink C, van der Ent A.   +7 more
europepmc   +1 more source

Isothermal Reduction Behavior and Microstructural Evolution of Iron Ore Sinter Under Simulated Radial Blast Furnace Gas Atmospheres With Hydrogen Injection

steel research international, EarlyView.
Commercial iron ore sinter is reduced isothermally under operation‐derived radial blast furnace gas atmospheres with and without 20 kg H2/tHM injection. Hydrogen improves reduction at 900–1100 °C, whereas at 700 °C the high H2O content limits the wüstite‐to‐iron driving force.
Ahmed Abdelrahim, Sherif Hegazy, Mikko Iljana, Aki Koskela, Carmen van der Kroon, Timo Fabritius   +5 more
wiley   +1 more source

Visualizing and Quantifying Rembrandt's Smalt Mixtures in The Night Watch in Three Dimensions Using μ-X-ray Fluorescence Tomography. [PDF]

Anal Chem
Broers FTH, van Loon A, Garrevoet J, Gabrieli F, Duivenvoorden JR, Gonzalez V, van Laar PJC, Noble P, Janssens K, Meirer F, Keune K.   +10 more
europepmc   +1 more source

Prospects of Eliminating Fluorspar Consumption in a Sustainable Argon‐Oxygen‐Decarburization Process

steel research international, EarlyView.
This study aims at identifying pathways for eliminating fluorspar consumption in the argon‐oxygen‐decarburization (AOD) process. Thermodynamic calculations suggest the feasibility of completely replacing fluorspar with alternative fluxes such as Al2O3, Na2O, K2O, and Li2O of suitable amounts.
Yu‐Chiao Lu, Fredrik Engström, Jyrki Pitkälä, Mikael Ersson   +3 more
wiley   +1 more source

Depositional Environment and Diagenetic History of Gas Hydrate-Bearing Sediments of the Alaska North Slope (HYDRATE 02 Geo Data Well). [PDF]

Energy Fuels
Phillips SC, Widlansky SJ, Yoneda J, Hiruta A, Grimm BAL, Johnson JE, Geist A, Holland ME, Schultheiss PJ, Collett TS.   +9 more
europepmc   +1 more source

Multi‐Scale Mechanical Behavior of Additive‐Manufactured 316L Stainless Steel Processed by Severe Plastic Deformation

steel research international, EarlyView.
The multi‐scale mechanical behavior of additive‐manufactured 316L stainless steel processed by directed energy deposition and high‐pressure torsion is explored. The influence of torsional strain on strength and microstructural evolution is revealed, indicating progressive grain refinement in the ultrafine regime, reaching strength levels nearing 1800 ...
M. Farhan Raza, Guney Guven Yapici
wiley   +1 more source

An A549 Cell-Based Approach Using Repeated Fluorescence Readouts for Assessing Reactive Oxygen Species Activity of Atmospheric Particulate Matter. [PDF]

Toxics
Tzagkaroulaki I, Diapouli E, Vasilatou V, Papagiannis S, Tagaris E.   +4 more
europepmc   +1 more source