Results 11 to 20 of about 45,354 (192)

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

open access: yesМинералогия, 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   +2 more
doaj   +1 more source

PROFESSIONAL COMPETENCE DEVELOPMENT FOR ADAPTED PHYSICAL EDUCATION

open access: yesПедагогически 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

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

open access: yesEducation 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

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

open access: yesFrontiers 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   +3 more
doaj   +1 more source

Mineralogy and distribution of critical elements in the Sn–W–Pb–Ag–Zn Huanuni deposit, Bolivia [PDF]

open access: yes, 2019
The polymetallic Huanuni deposit, a world-class tin deposit, is part of the Bolivian tin belt. As a likely case for a “mesothermal” or transitional deposit between epithermal and porphyry Sn types (or shallow porphyry Sn), it represents a case that ...
Alfonso, Pura   +12 more
core   +2 more sources

TANE ŞEKLİNİN GALEN CEVHERİNİN FLOTASYONUNA VE TOPAKLANMASINA ETKİSİ

open access: yesEskişehir 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

Effect of weathering product assemblages on Pb bioaccessibility in mine waste: implications for risk management [PDF]

open access: yes, 2013
General assessments of orebody types and associated mine wastes with regards to their environmental signature and human health hazards are needed to help managing present and historical mine waste facilities.
Cave, Mark R.   +3 more
core   +2 more sources

Influence of Temperature and Potential on the Electrochemical Dissolution of Galena in HNO3 at pH 2.0

open access: yesInternational Journal of Electrochemical Science, 2017
We investigated the influence of temperature and add potential on the electrochemical dissolution of galena in HNO3 at pH 2.0. Potentiodynamic curves showed galena different electrochemical reaction states. From OCP to 160 mV (vs.
Qingyou Liu   +4 more
doaj   +1 more source

Geophysical investigation of the Pb-Zn deposit of Lontzen-Poppelsberg, Belgium [PDF]

open access: yes, 2018
The drillhole information from the Lontzen-Poppelsberg site has demonstrated three orebodies and has allowed the estimation of the extension of the lodes, their dip, and the location at the ground surface.
Chouteau, Michel   +6 more
core   +5 more sources

Contamination of surface waters by mining wastes in the Milluni Valley (Cordillera Real, Bolivia): Mineralogical and hydrological influences [PDF]

open access: yes, 2008
This study is one of very few dealing with mining waste contamination in high altitude, tropical-latitude areas exploited during the last century. Geochemical, mineralogical and hydrological characterizations of potentially harmful elements (PHEs) in ...
Isaure, Marie-Pierre   +3 more
core   +3 more sources

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