نتایج جستجو برای: gold mine

تعداد نتایج: 106043  

Journal: :Journal of physics 2023

Abstract The raw gold grade of a mine in Shandong is 1.42 g/t, and it accompanied by copper sulfur minerals, the embedding closely related, so difficult to obtain ideal index using original flotation process. In order realize effective recovery gold, copper, sulfur, test study mixing-separation priority carried out. results show that mineral more suitable for beneficiation process flotation. ra...

2010
Abduwasit Ghulam

This paper proposes a method to find gold deposits in the Eastern Desert of Egypt. Different methods including various classification methods, principle component transform (PCT), band ratios, and a constrained energy minimization technique are evaluated for their performance for hydrothermal alteration zone mapping. First, these techniques are carried out to highlight known gold deposits over ...

Journal: :International journal of advanced research 2021

This study was initiated to contribute the sustainable management of biodiversity in mining sites Cote dIvoire. Its objective is determine impacts gold activities on flora Sissengue mine located department Tengrela northern The inventory conducted along a 500 m transect combined with surface survey and roving methods. method consisted delimiting 25 x (400 m2) plot at end each transect. In total...

Journal: :Journal of the Southern African Institute of Mining and Metallurgy 2018

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده شیمی 1392

in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...

Journal: :Revista de saude publica 1996
A J Caraballo

An outbreak of 154 cases of vampire bat biting in a four-month period in the gold mine of Payapal, a Venezuelan village, is reported. All patients were bitten during the night and the most bites were on their toes. No complication attributed to the bite was reported. Diagnoses of rabies virus made by means of immunofluorescence were negative. A possible reason for this outbreak may been the dev...

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