Results 41 to 50 of about 499,152 (305)

Study of Siderurgy Slags for the Reuse of Iron Oxides for Biotechnology Application

Proceedings, 2018
The reuse of slag for the extraction of iron oxides, besides allowing the use of potentially polluting material, allows its strategic use in biotechnological applications.
Diogo T. Moreira, Arno H. Oliveira, Adriana S. M. Batista   +2 more
doaj   +1 more source

New technology for lanthanide recovery from spent Nd-Fe-B magnets

South African Journal of Chemical Engineering, 2020
A new technology, representing a complete process of recovery of rare earth elements from neodymium-iron-boron permanent magnets scrap by acid dissolution and liquid-liquid extraction, is proposed. This technology is based on basic research of individual
Vaclav Gruber, Milan Carsky
doaj   +1 more source

Oxygen application to chloride leaching of complex sulfide ores [PDF]

, 1987
The study investigates leaching of complex sulfide ores with simultaneous regeneration of the leaching solution and removal of dissolved iron to balance the iron concentration in the leaching process.
Chou, Kuo Tung
core  

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Iron oxide synergistic vacuum carbothermal extraction of zinc from zinc sulfide [PDF]

Journal of Mining and Metallurgy. Section B: Metallurgy
To reduce the issues of high pollutant emissions and lengthy processes in extracting zinc from zinc sulfide ore, a new technical approach involving the synergistic use of iron oxide and vacuum carbothermal reduction to extract zinc from zinc sulfide ore ...
Ma H.-Z., Dang Y.-B., Wang Y.-N., Zeng J.-Y., Zhang X., Guan M.-H., Zhao X.-J.   +6 more
doaj   +1 more source

Biological activities and chemical composition of methanolic extracts of selected Autochthonous microalgae strains from the Red Sea [PDF]

, 2015
Four lipid-rich microalgal species from the Red Sea belonging to three different genera (Nannochloris, Picochlorum and Desmochloris), previously isolated as novel biodiesel feedstocks, were bioprospected for high-value, bioactive molecules.
Carolina Bruno De Sousa, Florêncio Nogueira, Fouzi Mouffouk, Hugo Pereira, José Manuel, João Varela, Khalid M. Abu-salah, Luísa Barreira, Luísa Custódio, Maria João Rodrigues, Marta Oliveira, Nuno Da Rosa Neng, Radhouan Ben-hamadou, Salman A. Alrokayan, The Red Sea   +14 more
core   +4 more sources

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Improvement of the stoping technology in mining magnetite quartzite by underground methods [PDF]

E3S Web of Conferences
The ore deposits in Kryvyi Rih iron ore basin are mined using bulk ore and overlying rocks caving systems. These mining systems have a significant drawback, namely a 2 – 5% reduction in the iron content of the mined ore mass when mining rich ores and up ...
Pysmennyi Serhii, Fedko Mykhaylo, Peremetchyk Andrii, Chukharev Serhii, Pilchyk Volodymyr, Mutambo Victor   +5 more
doaj   +1 more source

Synthesis, crystal structure and magnetism of beta-Fe1.00(2)Se1.00(3) single crystals

, 2011
Understanding iron based superconductors requires high quality impurity free single crystals. So far they have been elusive for beta-FeSe and extraction of intrinsic materials properties has been compromised by several magnetic impurity phases. Herein we
Abeykoon, Milinda, Billinge, Simon J. L., Bozin, Emil S., Hu, Rongwei, Lei, Hechang, Petrovic, C., Siegrist, Theo, Warren, J. B.   +7 more
core   +1 more source