Results 11 to 20 of about 45,698 (227)

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

open access: yesMicromachines, 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   +6 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

Enrichment in critical metals (In-Ge) and Te-Se in epithermal deposits of the 'La Carolina' district, San Luis, Argentina [PDF]

open access: yes, 2018
This study was supported by the ‘Proyecto de Ciencia y Técnica P-3-2-0414, of the National University of San Luis’ and by the Project CGL2016-76532-R from the MINECO of ...
Cepedal Hernández, María Antonia   +3 more
core   +2 more sources

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

open access: yes, 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   +14 more
core   +1 more source

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

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

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

MWP-fit: a program for multiple whole-profile fitting of diffraction peak profiles by ab initio theoretical functions [PDF]

open access: yes, 2001
A computer program has been developed for the determination of micro-structural parameters from diffraction profiles of materials with cubic or hexagonal crystal lattices.
Gubicza, Jenő   +2 more
core   +1 more source

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