Results 31 to 40 of about 17,951 (263)

Leachate Experiments to Evaluate Weathering of Waste Rock for Backfill Aquifers in Restored Coal Mine Pits, Powder River Basin, USA

Geosciences, 2023
Restoration of open-pit mines may utilize waste rock for landscape reconstruction, which can include the construction of backfill aquifers. Weathering and contaminant transport may be different in backfill aquifers compared to the surrounding aquifer ...
Julianna Martin, Jeff B. Langman
doaj   +1 more source

Microgels Enable iPSCs to Assemble, Expand, and Differentiate Into Organoids—From Sizable to High‐Throughput

Advanced Materials, EarlyView.
A chemically defined PEG‐based microgel platform enables scalable, reproducible production of three‐dimensional microgel‐iPSC constructs in multiple sizes. The system is compatible with high‐throughput automation and supports human iPSC expansion and differentiation within a single construct, including directed differentiation into cardiac organoids ...
Laura Klasen, Matthias Mork, Ramin Nasehi, Vasudha Turuvekere Krishnamurthy, Kira Zeevaert, Aaron Babendreyer, Jacopo Di Russo, Wolfgang Wagner, Laura De Laporte   +8 more
wiley   +1 more source

Mechanophotochemistry: Lighting up EDA Complexes in the Solid State

Angewandte Chemie, EarlyView.
Examples of mechanophotochemical EDA complex‐mediated radical reactions, including a Giese reaction, a C─S cross‐coupling reaction, a phosphorylation reaction, and a sulfonylation reaction are shown to rapidly proceed in air using visible light excitation.
Aniket Kumar Srivastawa, Eli Zysman‐Colman   +1 more
wiley   +2 more sources

Grain size distribution of waste rock masses of Kuzbass coal strip mines

Горные науки и технологии, 2021
Grain size distribution as a structural characteristic of waste rock and bulk masses in the course of mining and construction works acquires quantitative values in the process of rock blasting and hauling of rock mass.
Sergey O. Markov, Elena V. Murko, Fedor S. Nepsha   +2 more
doaj   +1 more source

Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications

Advanced Materials Technologies, EarlyView.
Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja, Mikko Kokkonen, Niina Halonen, Sami Myllymäki, Umair Rafique, Mandeep Singh, Ossi Laitinen, Heli Jantunen, Kristiina Oksman, Henrikki Liimatainen   +9 more
wiley   +1 more source

The influence of tailings concentration and waste rock medium length on horizontal seepage deformation

Frontiers in Earth Science
The technique of storing tailings with a waste rock embankment network integrates the high waste dumping site and high tailings pond engineering into one, effectively reducing the construction footprint.
Mingqiang Sheng, Min Ouyang, Jiayu Xu, Sijun Wang, Zhicong Lei, Xinxin Liu   +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

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

Microfluidic Droplet Plate Preserving Single Human Induced Pluripotent Stem Cell‐Derived Cardiomyocytes Morphology and Function

Advanced Materials Technologies, EarlyView.
We introduce a novel method combining microfluidics, optogenetics, and human induced pluripotent stem cell (iPSC) technology to encapsulate single iPSC‐derived cardiomyocytes (iPSC‐CMs) in an optimal environment for functional characterization. This method enables direct genotype‐phenotype correlation for genetic studies and high‐throughput screening ...
Xiao‐Ting Wang, Rachel P. White, Yashasvi Tharani, Michael A. Finocchiaro, Leona M. Ripple, Maksymilian Prondzynski, Tania Konry, Vassilios J. Bezzerides   +7 more
wiley   +1 more source

Use of hazardous barium slag as a supplementary cementitious material in calcium aluminate cement: Evolution of engineering properties and microstructure

Case Studies in Construction Materials
The disposal of barium slag (BS), a hazardous industrial by-product, presents a significant environmental challenge, particularly because of its potential toxicity and underuse.
Chen-xi Dong, Zhao Duan, Jiang-shan Li, Xin Chen, Wei Zhang, Haitao Cao, Nianqin Wang   +6 more
doaj   +1 more source