Coal India is facing a potential financial impact of Rs 35,000 crore in a "worst-case" scenario due to a Supreme Court review on mining taxes. The company's subsidiaries Mahanadi Coalfields Ltd and Central Coalfields Ltd are the most affected, with uncertainty surrounding the recovery of taxes from customers. Coal India Chairman P M …
Estimating the distribution and quantiles of data is a foundational task in data mining and data science. We study algorithms which provide accurate results for extreme quantile queries using a small amount of space, thus helping to understand the tails of the input distribution.
Damage at Yukon's Eagle mine site could be 'worst-case scenario,' says local mayor. The mayor of Mayo, Yukon, says a heap leach failure and slide reported Monday at the Eagle gold mine will have a ...
If we assume the worst case, where each item appears in each transaction, we can say that building the data structures for all items is O ... For association rule mining or sequential rule mining problems, there are up to 3^m – 2^(m+1) + 1 rules in the search space, in the worst case. Again, I will not do the proof.
Experts say this may be the worst case of lead poisoning in recent history. ... and the dust kicked up by this dirty and illegal mining has killed hundreds of children and sickened thousands more. ...
How long can unemployment rates for under 24s remain near 60%, as in Spain and Greece, without the powder keg igniting? Gold may yet be the best insurance against riot induced economic collapse.
Mine Sequence Optimization for Block Caving Using Concept of 'Best and Worst Case' 2 Figure 5: Example of sequence value for several options including Best and Worst case. Figure 5 demonstrates an example of …
Understanding the effects of mining on ES requires identifying and conceptualising the full ES chain including four key components – supply, demand, flow …
The proposed method generates additional training data by estimating the optimal level of worst-case transformation of training data while preserving the original annotation, and includes them into training to construct a robust decision boundary. ... Proceedings of the 28th ACM SIGKDD Conference on Knowledge Discovery and Data …
Best and Worst Case Concept The concept of 'best and worst case' has been popular for open pit optimization for more than 15 years (Smith, 2001) using GEOVIA Whittle ™. Whittle is able to generate a series of nested pits based on the economic values (grades, revenue factor and costs) defining limits on where to mine and when,
a. find possible worst case values for the dependent variable(s). b. find worst case and best case values for the dependent variable(s). c. find distribution information for the dependent variable(s). d. find median values for the dependent variable(s). question 5. A way to detecting and avoiding overfitting is to
The Marcopper mining disaster is one of the worst mining and environmental disasters in Philippine history. It occurred on March 24, 1996, on the Philippine island of Marinduque, a province of the Philippines located in the Mimaropa region.
Data Mining Session 6 – Main Theme Mining Frequent Patterns, Association, and Correlations Dr. Jean-Claude Franchitti New York University ... The worst case: MN where M: # distinct items, and N: max length of transactions The worst case complexty vs. the expected probability
In what is thought to have been Myanmar's worst mining disaster, in June last year rain began to saturate the ground at the northern section of the Wai Khar open-pit jade mine in the region of ...
A natural sinkhole occurs where the water table is below the soil/bedrock contact (7) (Langer 2001). b Hypothetical cross section showing karst area under worst-case conditions after quarry ...
In the lead-up to COP-26, in this Insight series from the White & Case Global Mining & Metals team, we examine some of the major forces of transition in the global mining & metals sector, digging into those people, products, policies and institutions that are at the forefront of influencing change in our sector.
Canadian mining companies are far and away the worst offenders in environmental, human rights and other abuses around the world, according to a global study commissioned by an industry association ...
less worst case species for 32 elements and 204 metal species; species based on those listed in the European legislation but also supplemented by species that hav-en't (yet) been included in this legislation but are significant nevertheless. ... mine whether one or more substances in a waste, at given concentrations, a) makes the waste ...
The cause? Coal mining, which has literally undermined hundreds of communities, causing them to crumble and sink. As this Reuters article explains, as much as 10,000 square kilometers of land in China is affected in some way by mining activities. Some now-abandoned mining pits are eroding, leaving villages to "totter precariously on …
SC mining tax ruling's impact on Coal India may touch Rs 35,000 crore in worst-case scenario: Chairman Mahanadi Coalfields in Odisha is the most impacted, the Coal India Chairman said ...
The foreigners have not left since. According to the Philippine Statistics Authority, a third of the country's total land area of 30 million hectares contained high deposits of gold, nickel, copper, and chromite, …
Regarded as the worst mining disaster in human history, more than 1,500 people died when a mixture of methane gas and coal dust caused an explosion in an underground shaft. The mine's ventilation …
The early 2000s then saw Mansfield's mining heritage centre beginning a painstaking process of scanning each and every single plan, eventually allowing the creation of the the digitised National ...
A village was set up to support 15,000 miners working in the ruby mine near Ambatondrazaka, Madagascar. Photo: Pardieu et al. (2017). However, compared to many other industries such as agriculture, mining uses relatively small pockets of land, and the future of mining could move to using techniques that are arguably even less invasive on …
The mudflow was caused by the failure of the Fundão iron-ore tailings dam owned by the mining company Samarco, a joint venture between BHP Billiton and Vale (Fig. 1).To make matters worse, Samarco has admitted that two more dams in the same mining complex where the tragedy struck are at threat to collapse, as they present …
Every quarter, an American mining company runs it to identify competitive and market forces. Within your company, invite employees from all levels to a remote, in-person or hybrid session.
The "suspenseful and completely absorbing story" (San Francisco Chronicle) of how survivors of the worst coal-mining disaster in history triumphed over corporate irresponsibility—written by the young lawyer who took on their case and won.One Saturday morning in February 1972, an impoundment dam owned by the Pittston Coal Company …
The Buffalo Creek disaster: How the survivors of one of the worst disasters in coal-mining history brought suit against the coal company--and won . by Gerald M Stern (Author) 4.5 4.5 out ... and I appreciate his ability to portray what a true attorney feels and how getting "emotionally involved" in a case is not always the worst thing you can do.
Bre-X's fake gold mine. In 1989, Canadian businessmen David Walsh founded the Bre-X mining company, which would find itself at the centre of a scandal so infamous it inspired the 2016 film Gold.In …
A coal dust explosion at Massey Energy's Upper Big Branch mine in West ia killed 29 out of 30 on-site miners on 5 April, 2010. The accident was the worst the US mining industry had seen since 1970, …
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