Results 41 to 50 of about 12,644 (309)

The effect of cow manure amendment and the ratio of gold mine tailings on sweet potato gold phytomining

Journal of Degraded and Mining Lands Management
Artisanal and small-scale gold mining has commonly used the mercury amalgamation method for gold ore extraction. The processing waste or tailings often contain gold and other metals.
Rhazista Noviardi, Benny Joy, Rija Sudirja, Mieke Rochimi Setiawati, Muhamad Rachman Djuwansah, Agung Karuniawan, Emma Trinurani Sofyan, Pujawati Suryatmana   +7 more
doaj   +1 more source

Technological innovation in Córrego do Sítio Mineração - A study of technical and economic aspects by using sensor-based sorting for refractory gold ore

REM: International Engineering Journal, 2021
The mining sector has a fundamental financial and economical role in the country where it practices these activities. In addition to employment creation and social-cultural development, the mining sector brings economic growth to the country.
Vinicius Moreira Assis, Andréia Bicalho Henriques, Mariana Gazire Lemos, Jose Augusto Dumont   +3 more
doaj   +1 more source

Features of choosing the schemes for selective mining of ores and justifying their rational parameters while using heap leaching schemes for processing [PDF]

E3S Web of Conferences, 2020
The article presents data from theoretical and experimental studies related to the search for a solution to an urgent geotechnological problem - selective mining of standard quality ore, substandard and diluted ores, taking into account the peculiarities
Sekisov Gennady, Sobolev Aleksei, Ashimbaev Abdakim   +2 more
doaj   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel, Patricia Pastura, Joshua P. Scallan, Timothy D. Le Cras   +3 more
wiley   +1 more source

Study of Mercury and Arsenic Contamination in Gold Processing Tailings from Gunung Botak, Buru Island – Maluku

Indonesian Journal of Chemical Research
Buru Island in Maluku Province is one of the sites of unlicensed gold mining activities (Illegal Gold Mining, IGM), which may lead to environmental pollution due to improper waste management. This study aimed to analyze the concentrations of mercury (Hg)
Anto Netty Siahaya, Matheis Frits Jan David Pieter Tanasale, Shielda Natalia Joris, Muhammad Syahyono Hasimin, Filky Sky Choesni   +4 more
doaj   +1 more source

Environmental pollution produced by gold artisanal mining in the Mapiri river basin, Apolobamba, Bolivia [PDF]

, 2012
Mining activity is very important in Bolivia since colonial times. Today it has been reactivated, especially gold mining, due to rise in metal prices. Artisanal and small-scale mining activities are abundant in the protected area of Apolobamba, near the ...
Alfonso Abella, María Pura, Esbrí, José María, García-Noguero, Eva María, Higueras Higueras, Pablo Leon, Palacios Ubach, Sílvia, Villegas Flores, Karla Stephanie   +5 more
core  

Experimental validation of a fluid dynamics based model of the UF Falcon concentrator in the ultrafine range [PDF]

, 2012
The process of separating ultrafine particles, say below 80 μm, on the basis of density is a true technical challenge. Indeed, the separation process itself becomes very much size dependent with such fine particles, so that large enough density ...
Bourgeois, Florent, Climent, Éric, Kroll-Rabotin, Jean-Sébastien   +2 more
core   +2 more sources

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

Mineralurgical and Environmental Characterization of the Mine Tailings of the IOCG Mine of Guelb Moghrein, Akjoujt, Mauritania

Applied Sciences
Since 2004, the processing of the iron oxide–copper–gold (IOCG) ore of Guelb Moghrein, Akjoujt, Mauritania, has resulted in the generation of approximately 40 million tons of mine tailings.
NDiarel Baidy Ba, Radhia Souissi, Faouzi Manai, Imad Khalil Taviche, Bochra Bejaoui, Mohamed Abdallahi Bagga, Fouad Souissi   +6 more
doaj   +1 more source

Design and implementation of an alternative process for the manufacture of bricks from gold mine tailings [PDF]

Ingeniare. Revista chilena de ingeniería, 2020
espanolEl objetivo de este trabajo fue desarrollar un proceso para el aprovechamiento de los relaves generados por el proceso de cianuracion para la recuperacion de oro, utilizandolos como materia prima para la obtencion de ladrillos de construccion; atendiendo aspectos de sumo interes para la industria minera como el desarrollo sostenible, la ...
Valdez Loaiza, J, Aguilar Franco, J, Sánchez Vargas, L, Alatrista Gongora, G, Figueroa Dianderas, AP   +4 more
openaire   +2 more sources