Results 51 to 60 of about 10,886,525 (241)

Leaching of rare earth elements from bastnasite ore (second part) / Выщелачивание редкоземельных элементов из пород, содержащих фторкарбонаты – вторая часть / Rastvaranje elemenata retkih zemalja iz ruda koje sadrže fluorokarbonatni mineral - drugi deo [PDF]

open access: yesVojnotehnički Glasnik, 2019
Dissolution of rare earth elements from bastnasite ore was studied using different leaching agents such as sulfuric acid, hydrochloric acid, acetic acid, citric acid and sodium hydroxide at 70°C, with 1mol/L, solid/liquid ratio of 0.05 between 30 and ...
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

New Science Based Concepts for Increased Efficiency in Battery Recycling

open access: yesMetals, 2021
It is a common understanding worldwide that electromobility will have a significant share in passenger transport and that there will be a very dynamic increase in the return volumes of discarded batteries in the future [...]
Bernd Friedrich, Lilian Schwich
doaj   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

Fibre structure preservation in composite recycling using thermolysis process

open access: yes, 2021
© 2021 Elsevier B.V. Recycling of thermoset carbon fibre reinforced polymer (TS-CFRP) composites using thermal processes result in recovered carbon fibres (rCF), being fluffy and losing their alignment and length, leading to a deteriorating impact on the
Qazi, Hamza   +2 more
core   +1 more source

A process for recycling thermosetting foams and the incorporation of recycled foams into structural composite panels [PDF]

open access: yes, 2009
PhDIn Europe, the rapidly growing thermosetting foam insulation products industry comprises over 11,500 companies employing over a third of a million people and is worth about 6 billion Euros in trade.
Jamshidi, Mohammadsadegh
core   +4 more sources

Leaching of rare earth elements with sulfuric acid from bastnasite ores / Выщелачивание редкоземельных металлов серной кислотой из пород, содержащих фторкарбонаты / Rastvaranje elemenata retkih zemalja sumpornom kiselinom iz ruda koje sadrže fluorokarbonatni mineral [PDF]

open access: yesVojnotehnički Glasnik, 2018
Dissolution of rare earth elements from bastnasite ores was studied using sulfuric acid at the atmospheric pressure. The one step strategy with sulfuric acid was studied further and the results showed that filtering difficulties do not happen for the ...
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

Formation and application of hydrogen in non-ferrous metallurgy

open access: yesVojnotehnički Glasnik, 2023
Introduction/purpose: Hydrogen is the most abundant element in the universe (75 % by mass) and the lightest element (with a density of 0.00082 g/cm3) which consists of only one proton and one electron. Because of its presence in many different forms such
Srećko R. Stopić, Bernd G. Friedrich
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

open access: yesFEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil   +3 more
wiley   +1 more source

Holistic Investigation of the Inert Thermal Treatment of Industrially Shredded NMC 622 Lithium-Ion Batteries and Its Influence on Selective Lithium Recovery by Water Leaching

open access: yesMetals, 2023
The thermal treatment of lithium-ion batteries is an already industrially implemented process step in some recycling chains. It provides the advantages of controlled organic removal and conditioning of the black mass for further process steps, such as ...
Christin Stallmeister, Bernd Friedrich
doaj   +1 more source

A context‐dependent modulatory role for eIF6 in acquired resistance to vemurafenib in melanoma

open access: yesFEBS Letters, EarlyView.
Acquired resistance to vemurafenib upregulates the translation factor eIF6 in melanoma cells. Silencing eIF6 in resistant cells reduces proliferation and partially restores drug sensitivity, whereas its overexpression increases sensitivity across melanoma lines regardless of BRAF status, via modulation of mTOR, S6K, and MAPK signaling.
George Kyriakopoulos   +9 more
wiley   +1 more source

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