Results 11 to 20 of about 56,332 (307)

Density Functional Theory Study of the Electronic Structures of Galena

Processes, 2023
In this study, the electronic structure of the galena surface was investigated using the first-principle calculation. The results of band structure, density of states, Mulliken population distribution, and frontier orbital analysis showed that galena was
Jianxiong Kang, Yanni An, Jiwei Xue, Xiao Ma, Jiuzhou Li, Fanfan Chen, Sen Wang, H. Wan, Chonghui Zhang, Xianzhong Bu   +9 more
semanticscholar   +1 more source

Application of Maleic Acid–Acrylic Acid Copolymer as an Eco-Friendly Depressant for Effective Flotation Separation of Chalcopyrite and Galena

Minerals, 2023
Environmentally achieving the flotation separation of chalcopyrite and galena is always a difficult problem due to the similar floatability of the two minerals.
Siqi Yang, Xuekun Tang, Rufeng Chen, Xun Fan, Jianchen Miao, Xianping Luo   +5 more
semanticscholar   +1 more source

Changing the Pulp Properties and Surface Hydrophilicity of Galena and Pyrite by Selecting the Appropriate Grinding Media Towards Their Selective Separation

Minerals, 2023
The grinding process plays a crucial role in the floatability of mineral. The present study proposes a scheme to assist in the flotation separation of galena and pyrite by optimizing the choice of grinding media.
Qilin Zhai, Runqing Liu, Jia Li, Wei Sun, Yue-hua Hu   +4 more
semanticscholar   +1 more source

Facile Production Method of PbS Nanoparticles via Mechanical Milling of Galena Ore

Micromachines, 2023
In this research, some physical properties such as the density, specific heat capacity, and micro-hardness of galena ore lumps purchased from the public market were determined.
Bety S. Al-Saqarat, Ahmed Al-Mobydeen, Ahmed N. AL-Masri, Muayad Esaifan, Imad Hamadneh, Iessa Sabbe Moosa, Ehab AlShamaileh   +6 more
doaj   +1 more source

PROFESSIONAL COMPETENCE DEVELOPMENT FOR ADAPTED PHYSICAL EDUCATION

Педагогически форум, 2019
The children with special educational needs are educated in a friendly environment in kindergarden and in primary school icluding during gym classes.
Galena Terzieva
doaj   +1 more source

Pb-Zn and minor U mineralization at Tyndrum, Scotland. [PDF]

, 1985
This mineralization occurs as veins and vein breccias in fractures associated with the Tyndrum-Glen Fyne fault. Quartz, galena and sphalerite, with minor chalcopyrite and baryte, are accompanied by small inclusions (in the galena-rich veins) of ...
Bethke, Cambi, Davidson, Ellis, Fleischer, Henley, Odernheimer, Petruk, Raybould, Rich, Richard A. D. Pattrick, Russell, Rye, Thost, Wilson   +14 more
core   +1 more source

Bioleaching of Indonesian Galena Concentrate With an Iron- and Sulfur-Oxidizing Mixotrophic Bacterium at Room Temperature

Frontiers in Microbiology, 2020
Biohydrometallurgy is believed to be a promising future study field for the recovery of lead (Pb) from ores/concentrates since the pyrometallurgical/hydrometallurgical processes have been largely applied to recover Pb to date, which operates at high ...
Siti Khodijah Chaerun, Siti Khodijah Chaerun, Edina Amadea Putri, Mohammad Zaki Mubarok   +3 more
doaj   +1 more source

Strategies for Pan-European Implementation of Blended Learning for Innovation and Entrepreneurship (I&E) Education

Education Sciences, 2019
New information and communication technologies (ICTs) provide educators and learners with novel approaches to enhance teaching and learning processes. Technology enabled learning plays a vital role in contemporary education and blended learning is widely
Galena Pisoni
doaj   +1 more source

GEOCHEMICAL FEATURES OF SULFIDES OF THE AKTASH MAGNETITE-POLYMETALLIC DEPOSIT, WESTERN KARAMAZAR, TAJIKISTAN (LA-ICP-MS DATA) [PDF]

Минералогия, 2023
The distribution of trace elements in sulfides from various ores of the Aktash magnetitepolymetallic deposit (Tajikistan) is studied using LA-ICP-MS method. Sulfides partly replace banded magnetite ores.
U.A. Yatimov, V.V. Maslennikov, D.A. Artem’ev   +2 more
doaj   +1 more source

TANE ŞEKLİNİN GALEN CEVHERİNİN FLOTASYONUNA VE TOPAKLANMASINA ETKİSİ

Eskişehir Osmangazi Üniversitesi Mühendislik ve Mimarlık Fakültesi Dergisi, 2022
Farklı şekil faktörlerine sahip tanelerle yürütülen flotasyon çalışmalarında daha köşeli tanelerin yuvarlak tanelere nazaran daha yüksek verimle kazanıldığı bilinmektedir.
Turan Uysal, Onur Güven
doaj   +1 more source