Results 71 to 80 of about 10,570,902 (260)
Process Mineralogy and Recovery Process of a Copper Oxide Mine in Niger
Kuangchan zonghe liyongTaking a copper oxide ore from Niger as a research object, a detailed process mineralogical study on the raw ore was carried out by chemical analysis, X-ray diffraction analysis and optical microscope analysis.
Dianqiang HUANG +5 more
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Comparative study on mineral dissemination characteristics of phosphate ores by X-ray micro computed tomography and BGRIMM Process Mineralogy Analysis. [PDF]
Sci Rep, 2022 Yang J, Qiu Y.
europepmc +1 more source
Exploring wave propagation behaviors in rock: A grain‐based perspective on mineral structures
Deep Underground Science and Engineering, EarlyView.This study investigates wave propagation in rock at the grain scale using a grain‐based model, revealing that mineral elastic modulus significantly influences wave attenuation while grain size and distribution have limited effects. A novel peak particle velocity attenuation prediction model is proposed and validated for grain‐scale wave propagation ...
Zhiyi Liao +3 more
wiley +1 more source
Sulfide mineralogy Reviews in mineralogy ;, v. 1./ Paul H. Ribbe, editor.
, 2019 In English.Volume 1 of Reviews in Mineralogy introduces to the mineralogy of sulfides. It covers the Determination, Relationships, and Classification of Sulfide Mineral Structures, Sulfide Crystal Chemistry, Electron Interactions and Chemical Bonding in ...
Ribbe Paul H.,
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An optimizing microseismic method for rock burst early warning based on mining production process
Deep Underground Science and Engineering, EarlyView.A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han +6 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.Inspired by spiders, the multilegged walk‐through assembling robot for arc parts achieves high‐precision synchronous control under heavy loads through dual‐layer hydraulic pose dynamics modeling and hierarchical pressure optimization, significantly enhancing shield tunneling assembly efficiency and precision.
Quan Xiao +5 more
wiley +1 more source
Metals, 2017 Due to its alkalinity, red mud produced by the Bayer process may affect both the environment and human health. For this reason, its further utilization instead of disposal is of great importance.
Gözde Alkan +4 more
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Papers from the Department of Chemistry and Mineralogy ...
, 1896 Reprinted from the American journal of science, the Transactions of the Royal Society of Canada, and other scientific serials.No. 1 title reads: Papers from the Department of Chemistry and Mineralogy; no.
McGill University. Dept. of Chemistry and Mineralogy.
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, 2023 Climate change induced changes in river flow dynamics have the potential to change the composition of suspended sediments in crucial tropical river ecosystems, possibly affecting their resiliency.
Trevor J. Mackowiak, Nicolas Perdrial
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Deep Underground Science and Engineering, EarlyView.This study examines energy evolution in rock rupture via triaxial direct shear tests, exploring the impact of confining pressure and temperature on fracture surface randomness. A novel energy‐based brittleness index is proposed, validated experimentally, and compared with existing methods for reliability and accuracy.
Biao Wang +5 more
wiley +1 more source