نتایج جستجو برای: lead mine

تعداد نتایج: 361945  

Hossein Memarian Majid Meybodian Mehdi Zare

Sarcheshmeh copper mine, with the final reserves of 828 million tons of sulfur ore and average grade of 0.74%, is known to be the largest open pit of Iran and most probably the second largest copper mine in the world. This mine is located in the seismotectonic zone of Central-Iran, and 23 Km away from the 150 Km long Rafsanjan active fault.In this study the vulnerability of the west wall of the...

2017
Heather E. Driscoll Janet M. Murray Erika L. English Timothy C. Hunter Kara Pivarski Elizabeth D. Dolci

Here we describe microarray expression data (raw and normalized), experimental metadata, and gene-level data with expression statistics from Saccharomyces cerevisiae exposed to simulated asbestos mine drainage from the Vermont Asbestos Group (VAG) Mine on Belvidere Mountain in northern Vermont, USA. For nearly 100 years (between the late 1890s and 1993), chrysotile asbestos fibers were extracte...

Journal: :BCP business & management 2022

As asteroid mining projects break through the technical barriers, more countries have plan to become pioneers. However, world currently does not a complete policy ensure that can benefit all of humanity. Therefore, exploring its fairness and normality needs be on agenda. AHP EWM are used construct global fair distribution model is in line with "global interests." It defined as fairness" from pe...

Sulfide lead resources are being depleted and the exploitation of carbonate lead deposits is now the main focus of lead mining. Cerussite, PbCO3, is majorly discarded to tailing damps because it is difficult to be processed by flotation in lead concentration units. This paper not only investigates the optimization of cerussite flotation, but it also proposes a model for predict...

2008
Julien Derr Jason T. Hopper Anirban Sain Andrew D. Rutenberg

We model the self-organization of the MinE ring that is observed during subcellular oscillations of the proteins MinD and MinE within the rod-shaped bacterium Escherichia coli. With a steady-state approximation, we can study the MinE-ring generically – apart from the other details of the Min oscillation. Rebinding of MinE to depolymerizing MinD filament tips controls MinE ring formation through...

Journal: :Environment, resource and ecology journal 2022

In the process of coal mining, unreasonable recovery sequence is likely to lead rock subsidence and surface deformation. order ensure safety shaft works as well buildings structures during pillar extend service life mine. this paper, we adopt continuous mining charging method recover protected with engineering background 3 from under dense building (structure) Z mine industrial square. Based on...

Journal: :Frontiers in Materials 2021

Predicting the reactions of backfill materials exposed to effects air and groundwater will eventually ensure an efficient accurate mine fill system for sustainable mining operations. This paper reveals effect mobility sulfur ions within lead-zinc processing tailings on strength quality cemented backfills. Some laboratory tests such as X-ray diffraction, ion chromatography, scanning electron mic...

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