نتایج جستجو برای: tailing
تعداد نتایج: 1348 فیلتر نتایج به سال:
Purpose. The purpose of this paper is to determine the flow lead, zinc and silver metals at enrichment factory in Trepça. authors have determined flows discharged into tailing Kelmend. In addition, they make a correction for losses Pb, Zn, Ag metals, which are very high. Methods. Ore has been studied two years production process lead concentrates based on following facts: selective separation m...
Purpose: A HPLC method for Fingolimod was developed using a Quality by Design concept. QbD has gained importance in recent times due to regulatory requirements. Actual study started after determination of target profile and qualification instrument.
 Methods: Separation carried on Grace C-8 column (4.6 x 250 mm, 5-?m particle size).The composition mobile phase methanol 20 mM ammonium forma...
With the aid of a novel poly-dA tailing-partial restriction technique and S1-protection mapping, the 5' terminal coding sequence for the 40S precursor ribosomal RNA of Xenopus laevis has been exactly identified. Since the promoter sequence for the 40S RNA should lie close to its 5' terminal coding sequence, we are able to conclude that the "Bam-Island" sequence reduplication (1) almost certainl...
Study of Band Broadening occurring in Size Exclusion Chromatography (SEC) is reported using very narrow PS standards obtained and characterised by Temperature Gradient Interaction Chromatography (TGIC). Chromatograms are fitted by Exponentially Modified Gaussian functions (EMG) and mapping of band broadening is obtained for different column sets. Interpretation of the skewing of the chromatogra...
The copper sulphide mining process would produce a large number of tailings that can be treated with different substrates so as to act guest soil in the ecological reclamation mine. In order reveal influence tailing treatment on plant growth, this experiment, tall fescue (Festuca arundinacea) was planted under potted conditions for purpose exploring effect exogenous such conditioning agents, su...
The Santa Barbara post-wildfire debris flows and the Brumadinho tailing-dam failure were two of most catastrophic flood events late 2010s. Both these carried so much solid-phase material, that classic, clear-water, risk approaches cannot replicate them, or forecast other like them. This case study applied new non-Newtonian features in HEC-RAS 6.1 to events, testing widely used model on common m...
Abstract Reliable assessment of earthen dams’ stability and tailing storage facilities widely used in the mining industry is challenging, particularly under seismic load conditions. In this paper, we propose to take into account effect dominant frequency on tailing/earthen dams. The calculations are performed by finite element modelling (FEM) with Mohr–Coulomb failure criteria. To separate cont...
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