Results 61 to 70 of about 299,164 (314)

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Nano-microbubble flotation of fine and ultrafine chalcopyrite particles

International Journal of Mining Science and Technology, 2014
As is well known to mineral processing scientists and engineers, fine and ultrafine particles are difficult to float mainly due to the low bubble-particle collision efficiencies. Though many efforts have been made to improve flotation performance of fine
Rahman Ahmadi, Darban Ahmad Khodadadi, Mahmoud Abdollahy, Maoming Fan   +3 more
doaj   +1 more source

A comparison of ion-exchange resins and activated carbon in recovering gold from cyanide leach solutions with low levels of copper

Bulletin of the Mineral Research and Exploration, 2022
This study was conducted to determine the effectiveness of three different adsorbents for the adsorption of gold from a real cyanide leach liquor. An activated carbon (NORIT GAC 1240), strong base (Purogold A194), and weak base (Purogold S992) resins ...
Deus Albert Msumange, Ersin Yener Yazıcı, Oktay Celep, Hacı Deveci   +3 more
doaj   +1 more source

In situ carbon mineralization in ultramafic rocks: Natural processes and possible engineered methods

Energy Procedia, 2018
Published by Elsevier, Amsterdam [u.a.]
Kelemen, P. B., Aines, R., Bennett, E., Benson, S. M., Carter, E., Coggon, J. A., de Obeso, J. C., Evans, O., Gadikota, G., Dipple, G. M., Godard, M., Harris, M., Higgins, J. A., Johnson, K. T. M., Kourim, F., Lafay, R., Lambart, S., Manning, C. E., Matter, J. M., Michibayashi, K., Morishita, T., Noël, J., Okazaki, K., Renforth, P., Robinson, B., Savage, H., Skarbek, R., Spiegelman, M. W., Takazawa, E., Teagle, D., Urai, J. L., Wilcox, J., the Oman Drilling Project Phase 1 Scientific Party, Crispini, L.   +33 more
openaire   +3 more sources

Техніка та технологія дезінтеграції й гравітаційного збагачення рідкіснометалічних руд [PDF]

, 2017
On the base of the analysis of centrifugal concentrators designs there has been justified the selection of apparatus for the rare-metal ores beneficiation.
Biletskyi, V. S., Komarova, O. I., Shpylovyi, K. L., Shpylovyi, L. V.   +3 more
core  

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Editorial

Dyna, 2013
The professional status and characteristics of mineral processing were discussed along with the importance of innovative personnel training for mineral processing engineering.
Y Tao, Y He, Y Kuang, Y Zhao
doaj  

Engineered Mycelial Scaffolds With Tunable Ultraviolet Protection, Wettability, Thermal Stability, and Spatial Mechanics

Advanced Engineering Materials, EarlyView.
Fungal mycelia grown into biodegradable scaffolds and infused with titania nanoparticles show enhanced ultraviolet shielding, thermal protection, and surface nonwettability. Properties were tuned by drying methods, revealing structure–function relationships.
Juwon S. Afolayan, Xin Zhang, Carole C. Perry   +2 more
wiley   +1 more source

Synergistic heat/UV activated persulfate for the treatment of nanofiltration concentrated leachate

Ecotoxicology and Environmental Safety, 2021
Nanofiltration concentration leachate is a high concentration organic wastewater with low biodegradability and high toxicity. To explore the feasibility of a combined Heat/UV activated persulfate process on nanofiltration concentrated leachate, the ...
Liuyang He, Huan Chen, Li Wu, Zulin Zhang, Yongfei Ma, Jing Zhu, Jingxuan Liu, Xiaoke Yan, Hong Li, Lie Yang   +9 more
doaj   +1 more source

The complex binder based on Portland cement andash-and-slag wastes from thermal power stations [PDF]

, 2019
Increase in the balance of boiler and furnace fuel of the energy sector of the Republic of Belarus the proportion of own energy resources (milling peat and wood chips) places priority on resolving the issues of utilization of ash-and-slag wastes and ...
Vysotskaya, Maryia
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