Results 31 to 40 of about 16,249 (265)

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

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

Bioprinting Organs—Science or Fiction?—A Review From Students to Students

Advanced Healthcare Materials, EarlyView.
Bioprinting artificial organs has the potential to revolutionize the medical field. This is a comprehensive review of the bioprinting workflow delving into the latest advancements in bioinks, materials and bioprinting techniques, exploring the critical stages of tissue maturation and functionality.
Nicoletta Murenu, Camilla Mussoni, Mateo S. Andrade Mier, Paula Buettner, Nathaly Chicaiza‐Cabezas, Yi‐Yu Robin Dai, Jessica Faber, Maren Fiedler, Zan Lamberger, Xuen Jen Ng, Vanessa Moessler, Anna Rederer, Jonas Roeder, Sabrina Stecher, Katinka Theis, Jeanette Weigelt, Silvia Budday, Gregor Lang, Natascha Schaefer   +18 more
wiley   +1 more source

Mitigation of Acid Mine Drainage Using Blended Waste Rock in Near-Equatorial Climates—Geochemical Analysis and Column Leaching Tests

Physchem
Acid mine drainage (AMD), wherein acidic water is generated from pyrite-containing waste rock, can be mitigated by encapsulating pyritic waste rock with cover materials to restrict the inflow of oxygen and water.
Akihiro Hamanaka, Takashi Sasaoka, Hideki Shimada, Shinji Matsumoto, Ginting Jalu Kusuma, Mokhamad Candra Nugraha Deni   +5 more
doaj   +1 more source

Spherical Skin Model: Stratified Co‐Culture of Fibroblasts and Keratinocytes on Spherical Beads Toward Compound Screening

Advanced Healthcare Materials, EarlyView.
Models of the human skin must combine the relevant biological contents and suitable biomaterials with the correct spatial organization. Performing compound screening on such in vitro models also requires fast and reproducible production methods of the models.
Elisa Lenzi, Nadia Vertti‐Quintero, Julien Husson, Anne‐Laure Bulteau, Carine Nizard, Karl Pays, Sébastien Sart, Charles N. Baroud   +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

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

Advanced 3D Platforms for Modeling CNS Neuroinflammation: Cell Integration, Techniques, and Challenges

Advanced Healthcare Materials, EarlyView.
This review summarizes the roles of key central nervous system cell types, the extracellular matrix, and the blood‐brain barrier in neuroinflammation, and their integration into diverse 3D culture systems. It examines major incorporation strategies, including direct co‐culture, hydrogel encapsulation, transwell migration assays, and bioprinting ...
Emmanuelle D. Aiyegbusi, Julia Di Stefano, Dearbhaile Dooley   +2 more
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

Effect of manganese-rich solid waste on soil phosphorus availability applied as monopotassium and rock phosphate in two contrasting soils

South African Journal of Science, 2023
Manganese (Mn) mining produces a large amount of Mn-rich solid waste contributing to soil and groundwater pollution. Adding Mn-rich waste to soils could reduce mining pollution by allowing specialised plants to take up this mineral for growth, that is ...
Mohammed A. Elsheikh, Khatab Abdalla, Louis Titshall, Pardon Muchaonyerwa   +3 more
doaj   +1 more source