Results 51 to 60 of about 639,172 (271)
Advanced Science, EarlyView.A conversion‐resolved constitutive framework is developed for the hydrogen‐based direct reduction of iron oxide pellets. Effective reaction and transport timescales are inferred directly from measured trajectories and mapped against operating conditions, pellet architecture, and composition. The analysis reveals how late‐stage transport control emerges
Anurag Bajpai +3 more
wiley +1 more source
Archives of Metallurgy and Materials, 2015 Continuous rotary extrusion (CRE) is the more and more frequently used variation of the plastic working process. Magnesium alloys, due to its properties are becoming increasingly popular as a substitute for aluminium alloys and steel, particularly in the
Mitka M. +3 more
doaj +1 more source
(Fe4N/GaN)@GC: A Bifunctional Electrocatalyst for High‐Performance Rechargeable Zinc‐Air Batteries
Advanced Science, EarlyView.This work demonstrates that an unprecedented Fe4N/GaN heterostructure, stabilized by a graphitized carbon shell, induces interfacial charge redistribution and optimizes oxygen‐intermediate adsorption, enabling highly efficient bifunctional ORR/OER electrocatalysis for rechargeable zinc‐air batteries.
Xin‐Yuan Wei +8 more
wiley +1 more source
Oil heating furnace control based on calculation of the heat balance
Известия высших учебных заведений: Нефть и газThe oil heating furnace is a crucial component of the oil treatment unit and can utilize associated petroleum gas as fuel. However, gases of varying compositions require different amounts of air for complete combustion.
R. A. Smuykas +2 more
doaj +1 more source
Electrolytic properties and element migration behavior in a Fe-TiB2/Al2O3 composite cathode
工程科学学报, 2019 Wettable cathodes are a very important part of the non-carbon electrolysis process. This study prepared Fe-TiB2/Al2O3 composite cathode materials by cold pressing and sintering using alumina sol as a binder and metal Fe as a sintering agent for aluminum ...
LIANG Yu-dong +6 more
doaj +1 more source
The effect of severe plastic deformation on the Mg properties after CEC deformation
Journal of Magnesium and Alloys, 2020 In this study, the effect of severe plastic deformation on the Mg grain refinement and recovery mechanism was investigated. Technical pure magnesium was deformed at room temperature by cycling extrusion-compression (CEC) process up to large deformation ...
B. Sułkowski +5 more
doaj +1 more source
Technology of Polish copper ore beneficiation – perspectives from the past experience
E3S Web of Conferences, 2016 The paper describes the main types of existing copper deposits in the world and the most common enrichment technologies. The characteristic elements of the current flowsheet of the Polish ore beneficiation were discussed together with the reasons for ...
Wieniewski Andrzej, Skorupska Bozena
doaj +1 more source
Advanced Science, EarlyView.Furrow tillage resolves the conventional‐vs.‐no‐tillage trade‐off by simultaneously cutting CO2 efflux to 2.0–3.0 g C m−2 d−1 and unlocking high nutrient availability for the rice rhizosphere. This scalable agronomic solution strengthens soil health, enhances plant physiology, reshapes microbial metabolism, and shifts paddy systems toward a net ...
Arnab Majumdar +10 more
wiley +1 more source
Refining of Non-Ferrous Metals [PDF]
, 1957 The fundamentals of refining of non - ferrous metals have been outlined . Examples of removalof impurities by selective oxidation , electrolysis,distillation , volatilization , etc., have been given.Refining of copper, lead, zinc, tin, and some other ...
Berry, J G
core +1 more source
CrystalsThis study presents the results of research on the influence of different contents of copper in aluminium alloys based on the 6xxx series on mechanical and structural properties.
Sonia Boczkal +7 more
doaj +1 more source