Results 101 to 110 of about 17,959 (285)

Solvent Extraction of Rare-Earth Elements (REEs) from Lignite Coal In Situ

Fuels
Plugs of lignite coal from multiple formations were subjected to a series of tests to determine the amount of rare-earth elements (REEs) to be extracted from coal in an in situ mining operation.
Ian K. Feole, Bruce C. Folkedahl
doaj   +1 more source

Predicting soil water and mineral nitrogen contents with the STICS model for estimating nitrate leaching under agricultural fields [PDF]

, 2012
The performance of the STICS soil-crop model for the dynamic prediction of soil water content (SWC) and soil mineral nitrogen (SMN) in the root zone (120 cm) of seven agricultural fields was evaluated using field measurements in a coarse-grained alluvial
Jégou, Guillaume, Sanchez-Perez, Jose-Miguel, Justes, Eric, Sánchez-Pérez, J.M., Jégo, Guillaume, Justes, Eric,, Sanchez-Pérez, José Miguel, Justes, Eric, E.   +7 more
core   +1 more source

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Avaliação da biodessulfurização do carvão mineral de Santa Catarina por intemperismo natural, lixiviação com água ácida de mina e inoculação microbiana / [PDF]

, 1998
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro ...
Frello, Albertino
core  

Operando Electrochemical Formation of Integrated Ni‐Fe Oxyhydroxide Anode for Durable Anion Exchange Membrane Water Electrolyzer

Advanced Science, EarlyView.
The interfacial stability and activity of Ni‐Fe‐based AEMWE anodes can be directly enhanced by operando voltage‐cycling in a FeOOH‐containing electrolyte. This process simultaneously induces Ni oxidation and Fe incorporation, forming an integrated, porous (Fe, Ni)OOH layer with high conductivity and durability.
Euntaek Oh, Jonghyun Hyun, Hojin Lee, Changsoo Lee, Jang Yong Lee, Dong Wook Lee, Kyunghwa Seok, Jeesoo Park, Susung Kim, Gisu Doo, Hee‐Tak Kim   +10 more
wiley   +1 more source

Reinforcing Oxygen Activation of Spinel Oxide via Mn─O Covalency Engineering for VOCs Oxidation

Advanced Science, EarlyView.
A MnCo spinel catalyst with weakened Mn─O covalency was synthesized via a hard‐template method. The reduced Mn─O covalency facilitates localized electron redistribution, promoting the activation of both molecular oxygen and lattice oxygen, and thereby enabling the efficient and complete oxidation of VOCs (ethyl acetate, toluene, and propane).
Gan Li, Ruochen Zhou, Qianqian Chen, Guobo Li, Xiang Tu, Fengbo Yu, Wenming Liu, Jian Ji, Honggen Peng   +8 more
wiley   +1 more source

Bioleaching of Metal-Polluted Mine Tailings: A Comparative Approach Between Ex Situ Slurry-Phase Stirred Reactors Versus In Situ Electrokinetic Percolation

Applied Sciences
This work compares two technologies for the remediation of metal-polluted mine tailings based on lab-scale bioleaching experiments performed in (a) conventional agitated slurry-phase reactors and (b) in situ electrokinetic percolation.
Irene Acosta Hernández, Martín Muñoz Morales, Francisco Jesús Fernández Morales, Luis Rodríguez Romero, José Villaseñor Camacho   +4 more
doaj   +1 more source

Geological reconnaissance report of metallic deposits for in situ and heap leaching extraction research possibilities

, 1982
Geological reconnaissance report of metallic deposits for in situ and heap leaching extraction research ...
Suzanne Jones (8697894), W.D. Hausel (10069834)   +1 more
core   +1 more source

One‐Dimensional RuIrTe Nanotubes with Amorphous Surface as a Highly Active and Stable Electrocatalyst Toward Oxygen Evolution Reaction in Acidic Media

Advanced Science, EarlyView.
A rational etching‐induced reconstruction strategy is demonstrated to fabricate one‐dimensional RuIrTe ternary nanotubes with a unique amorphous‐crystalline heterostructure. This hierarchical architecture synergistically optimizes mass transport and electronic configurations, delivering record‐breaking performance in proton exchange membrane water ...
Zhi Liang Zhao, Zhe Zhang, Shaoxuan Yang, Jie Zhang, Qi Wang   +4 more
wiley   +1 more source

Nickel laterite processing technologies – where to next?

, 2010
A review has been completed of current and proposed processing technologies for nickel laterite ores. Although future supplies of nickel depend on laterite ores, their processing is inherently energy intensive and expensive as, unlike sulphide ores ...
Kyle, J.
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