Results 31 to 40 of about 229,924 (266)

Experimental investigation of copper leaching from flash furnace dust and integrated mathematical-artificial neural network modeling of kinetics

Case Studies in Chemical and Environmental Engineering
Hydrometallurgical methods, particularly leaching, provide an effective approach for recovering copper from low-grade materials. This study experimentally investigates the influence of temperature, time, and acid concentration on leaching of copper from ...
Hassan Razzani, Hassan Hashemipour, Amirhossain Karimi   +2 more
doaj   +1 more source

Petrography, geochemistry, and tectonic setting of intrusive bodies of the Seridune deposit, northeast of Sarcheshmeh mine, Kerman Province, with an emphasis on Seridune porphyry intrusive body [PDF]

پترولوژی
IntroductionThe Cenozoic Urumieh–Dokhtar magmatic arc (UDMA) in Iran is a part of the Alpine-Himalayan orogenic belt hosts well-known porphyry Cu ± Mo ± Au ± Ag and epithermal Cu (± Au) deposits (McInnes et al., 2003; Hou et al., 2011; Richards et al ...
Mahdieh Bamorovat, Sara Dargahi, Mohsen Arvin, Alireza Shaker, Majid Aminzadeh   +4 more
doaj   +1 more source

A grey-based multiple attribute decision making model for implementing circular supply chain in copper industries

Cleaner Logistics and Supply Chain
The present study aims to prioritize measures to surmount the barriers of implementing the circular supply chain of the copper industry by employing grey MADM methods.
Moazameh Mahmoudi, Payam Shojaei, Ehsan Javanmardi, Habibollah Mahmoudabadi   +3 more
doaj   +1 more source

Synergistic Effect of Mixed Biosurfactant System on Emulsification of Heavy Crude Oil [PDF]

Iranian Journal of Chemistry & Chemical Engineering
In this study, the synergistic impact of rhamnolipid and saponin emulsifiers on the emulsion processing of heavy oil was studied. Emulsions were formulated by 10, 20, and 30% water content using mixed biosurfactants at various HLB values (9.6–10.8) to ...
Amirhossein Dolatzadeh Khiavi, Reza Hajimohammadi, Farid Sattarpour, Abbas Nasiri galeh, Yashar Asadollahi Razi   +4 more
doaj   +1 more source

The study of molybdenite types related to the ore processing plant of the Sar Cheshmeh mine

Journal of Economic Geology, 2011
Molybdenite occurs in five forms in the Sar Cheshmeh porphyry copper deposit, namely, (1)-veinlets with quartz-molybdenite, (2)-veinlets with quartz-molydenite that were filled with pyrite, (3)-veinlets with quartz-molybdenite-pyrite–chalcopyrite, (4 ...
Balandeh Aminzadeh, Jamshid Shahabpour, Mortaza Asadipour   +2 more
doaj   +1 more source

D,L-Citrullinato-bipyridine Copper Complex: Experimental and Theoretical Characterization

Crystals, 2023
Citrulline is a non-protein amino acid that acts as a metabolic intermediate in the urea cycle and arginine synthesis. It is present in some foods, although its name derives from watermelon (Citrullus vulgaris), from which it was first identified.
Diego Ramírez-Contreras, Amalia García-García, Angel Mendoza, Laura E. Serrano-de la Rosa, Brenda L. Sánchez-Gaytán, Francisco J. Melendez, María Eugenia Castro, Enrique González-Vergara   +7 more
doaj   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Syntheses, Characterization, Crystal Structures and Antimicrobial Activity of Copper(II), Nickel(II) and Zinc(II) Complexes Derived from 5-Bromo-2-((cychlopentylimino)methyl)phenol

Acta Chimica Slovenica, 2023
Four new complexes of copper(II), nickel(II) and zinc(II), [CuL2] (1), [Ni3L2(4-BrSal)2(CH3COO)2(CH3OH)2]·2CH3OH (2), [ZnBr2(HL)2] (3) and [ZnL(dca)]n (4), where L is 5-bromo-2-((cychlopentylimino)methyl)phenolate, HL is the zwitterionic form of 5-bromo-
Li Zhang, Xiao-Yang Qiu, Shu-Juan Liu
doaj   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

FEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty, Kelsi R. Hall, Zachary D. Tillett, Liam S. Turk, James S. Davies, Michael J. Currie, Hamish G. Brown, Sepideh Valimehr, Peter D. Mace, Andrew E. Whitten, Santosh Panjikar, Eric Hanssen, Rachel A. North, Renwick C.J. Dobson   +13 more
wiley   +1 more source