Results 31 to 40 of about 28,621 (307)

Experimental study on deformation and failure of cemented filling body in open-pit end slope under different loading rates

Meikuang Anquan, 2022
In order to reveal the influence of loading rate on the deformation and failure of cemented waste rock filling body, uniaxial compression tests of cemented waste rock filling body under five groups of loading rates were carried out, and the changes of ...
LI Qiang, CHEN Yanlong, XU Kun, LYU Haoyan, XIE Qihang, CHEN Yuanguang, GU Jun   +6 more
doaj   +1 more source

Tuning Separator Chemistry: Improving Zn Anode Compatibility via Functionalized Chitin Nanofibers

Advanced Functional Materials, EarlyView.
Nanochitin derived from waste shrimp shells is used to fabricate separators for aqueous zinc batteries. By tuning the density of amine and carboxylic surface groups, water mobility at the separator interface is controlled, promoting uniform zinc deposition, suppressing dendrite growth, and enabling exceptional cycling stability exceeding 2000 h ...
Ibrahim Al Kathemi, Vishnu Arumughan, Mohamed Zbiri, Marcel Kröger, Ira Smal, Eero Kontturi, Roza Bouchal   +6 more
wiley   +1 more source

Improving control of contamination from waste rock piles

, 2017
Waste rock piles are made of heterogeneous, coarse-grained rock extracted from mines to reach the ore. The internal structure of a pile has a major impact on water and oxygen movement and hence the production of acid mine drainage or contaminated neutral
Hirthe E., Graf T., Broda S., Blessent D., Aubertin M.   +4 more
core   +1 more source

Modeling seepage into heated waste emplacement tunnels in unsaturated fractured rock [PDF]

, 2003
Predicting the amount of water that may seep into waste emplacement tunnels (drifts) is important for assessing the performance of the proposed geologic repository for high-level radioactive waste at Yucca Mountain, Nevada. The repository will be located
Tsang, Yvonne W., Yvonne W. Tsang, Jens T. Birkholzer, Birkholzer, Jens T., Sumit Mukhopadhyay, Mukhopihadhyay, Sumit   +5 more
core   +1 more source

Nanoengineered Binetworks in Multifunctional Anionic Block Polymer Mesoblends for Improved Mechanical Properties

Advanced Functional Materials, EarlyView.
Mesoblends consist of a nanostructured polymer into which a second polymer is imbibed with a selective solvent. In this work, a solvent‐templatable pentablock terpolymer possessing a sulfonated midblock is modified with a hydrophilic polymer that is photocrosslinked in situ, yielding a hierarchical binetwork.
Kacie M. Wells, Ivan Kuzmenko, Reza A. Ghiladi, Richard J. Spontak   +3 more
wiley   +1 more source

Reasearch on Optimum Mix Proportion Waste Rock-tailings Backfill Materials Based on Orthogonal Tests

Kuangchan zonghe liyong, 2022
To improve the problem of solid waste in phosphate mines, the research on the optimum mix ratio for cemented filling experiment of waste rock and phosphorus tailings was studied by orthogonal tests.
Junjie Song, Weizhong Zhang, Menglai Wang, Qinli He, Qinrong Kang   +4 more
doaj   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Recycling Process of Copper and Cobalt Waste Rock in the Democratic Republic of the Congo

Kuangchan zonghe liyong
The copper grade of the waste rock in the Sicomines copper-cobalt mining area in Congo (DRC) is 1.01%, and the cobalt grade is 0.045%, which has the recycling value. However, the waste rock has problems of high oxidation rate and severe mudding.
Jianyun YAO, Lei SUN, Xinghai CHEN, Hongjie WANG, Feng JIANG, Qingqing WANG   +5 more
doaj   +1 more source

A black‐box automated approach to calibrate numerical simulations and optimize cover design: Application to a flow control layer constructed on an experimental waste rock pile

Vadose Zone Journal, 2021
Mining operations often produce large volumes of waste rock to access economically valuable mineralized zones. Waste rock is usually stored in surface piles, the construction and reclamation of which represent a challenge for the industry. A flow control
Tom Crouzal, Thomas Pabst
doaj   +1 more source

Double‐Transition‐Metal MXenes: Multimetallic 2D Platforms for Next‐Generation Biomedicine

Advanced Materials, EarlyView.
The present work explores recent progress in double‐transition‐metal MXenes and focuses on their potential as multifunctional biomedical nanoplatforms whose tunable optical, electronic, mechanical, and surface properties enable imaging, theranostics, antimicrobial activity, biosensing, tissue engineering, and drug delivery.
Parsa Namakiaraghi, Mohammad Mozafari, Masoud Soroush   +2 more
wiley   +1 more source