Results 71 to 80 of about 1,021,442 (304)

Influence of grain-refiner addition on the morphology of fe-bearing intermetallics in a semi-solid processed Al-Mg-Si alloy [PDF]

, 2013
© The Minerals, Metals & Materials Society and ASM International 2013The three-dimensional morphologies of the Fe-bearing intermetallics in a semisolid-processed Al-Mg-Si alloy were examined after extracting the intermetallics. α -AlFeSi and β-AlFeSi are
A. Verma, C.J. Simensen, G. Sha, G. Sha, H. Ye, I.J. Polmear, Ian Stone, J.A. Taylor, J.L. Jorstad, Keyna O’Reilly, L. Sweet, L.F. Mondolfo, M. Cooper, N.C.W. Kuijpers, S. Kumar, S. Onurlu, S. Zajac, Sundaram Kumar, Tahsina Smith   +18 more
core   +1 more source

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Structural architecturing and hydrocarbon reservoir potential of Sakesar Limestone: Surghar Range, North Pakistan [PDF]

International Journal of Economic and Environment Geology, 2017
The Surghar Range western extension of the Trans-Indus ranges constitutes the southeastern anterior foldand-thrust belt of the Kohat Plateau. This structural territory is comprised of various local to regional scale anticlines right from Serkia-Mitha ...
Iftikhar Alam, Syed Abbas Sultan, M. Waseem Khan   +2 more
doaj  

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

Advanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana, Indra Apsite, Leonid Ionov   +2 more
wiley   +1 more source

Evaluation of Homogeneity from Ore-bodied in Nigeria for Secondary Mineral Prospective [PDF]

, 2012
Samples from ore–bodied areas at different locations in Papalanto and Ifo in Ogun-State, South-West of Nigeria, where Ewekoro cement industry is situated, were analyzed so as to recover some secondary minerals of economic value.
Inegbenebor, A. I., Inegbenebor, A.O., Olanrewaju, I. O.   +2 more
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A revised scheme for the reactivity of iron (oxyhydr)oxide minerals towards dissolved sulfide [PDF]

, 2004
The reaction between dissolved sulfide and synthetic iron (oxyhydr)oxide minerals was studied in artificial seawater and 0.1 M NaCl at pH 7.5 and 25°C. Electron transfer between surface-complexed sulfide and solid phase Fe(III) results in the oxidation ...
Bartlett, Berner, Biber, Bigham, Bondietti, Borggaard, Canfield, Canfield, Canfield, Canfield, Canfield, Carlson, Chambers, Chen, Cline, Cornell, Cornell, Crosby, Davis, Dos Santos Afonso, Fitzpatrick, Fredrickson, Fuller, Gagnon, Haese, Hering, Heron, Hurtgen, Jørgensen, Kostka, Krom, Krom, LaKind, Litter, Lovley, Lovley, Luther III, Luther III, Michael D. Krom, Millero, Morse, Morse, Morse, O’Brien, Peiffer, Postma, Poulton, Poulton, Poulton, Poulton, Pyzik, Raiswell, Raiswell, Rickard, Robert Raiswell, Roden, Rysgaard, Schwertmann, Schwertmann, Schwertmann, Schwertmann, Sidhu, Simon W. Poulton, Stolz, Stookey, Stucki, Stumm, Suter, Taylor, Thamdrup, Thamdrup, Torrent, Urban, Viollier, West, Yao, Zhang, Zinder   +77 more
core   +1 more source

Multiscale Structuring of Hydroxyapatite via Two‐Photon Lithography of Nanocomposites

Advanced Functional Materials, EarlyView.
Hydroxyapatite scaffolds are of great interest in bone tissue engineering applications, ranging from 3D cell culture to regenerative medicine. Using two‐photon lithography of a transparent nanocomposite, hydroxyapatite microstructures with features ranging from submicron to centimeter‐scale are fabricated. This allows to mimic the natural bone geometry,
Leonhard Hambitzer, Jan Mathis Hornbostel, Richard Prediger, Sebastian Kluck, Michael Daub, Cornelia Lee‐Thedieck, Frederik Kotz‐Helmer   +6 more
wiley   +1 more source

Enhanced tantalum and niobium recovery from fine-grained low-grade Abu Dabbab ore using Falcon concentration and magnetic separation

Scientific Reports
Tantalum (Ta) and niobium (Nb) possess unique properties that make them invaluable across various industries. However, their similar chemical characteristics and natural co-occurrence challenge their separation.
El-Sayed R. E. Hassan, Yun Chen, N. A. Abdel-Khalek, A. M. Elbendari   +3 more
doaj   +1 more source

The social and environmental complexities of extracting energy transition metals

Nature Communications, 2020
As low-carbon energy technologies advance, markets are driving demand for energy transition metals, increasing the stress placed on people and the environment in extractive locations.
Éléonore Lèbre, Martin Stringer, Kamila Svobodova, John R. Owen, Deanna Kemp, Claire Côte, Andrea Arratia-Solar, Rick K. Valenta   +7 more
doaj   +1 more source

Industrial mineral resources of Zambia [PDF]

, 2000
Zambia has for many years been heavily dependent upon the mining of copper which, combined with cobalt production, represents over 98% of mineral sales and 75% of export earnings (1997 figures).
Mitchell, Clive
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