Patriot Coal has concluded that the continuation or expansion of surface mining, particularly large scale surface mining of the type common in central Appalachia, is not in its long term interests.
After studying the profitability of these mining botnets, McAfee describes them as a "futile effort," thanks to the difficulty level of common mining algorithms and the non-specialized hardware that the malware is infecting.
The idea of mining is common among the leading cryptocurrencies, and amounts to a trade: miners dedicate computing power to solving complicated math problems, or moving information across the network, and you're rewarded with slices of currencies in return.
The exploitation of children in the mining of minerals is also common.
Traditional text mining relies on the co-occurrence of common terms between documents to provide similarity measures that can be used to cluster and rank related documents.
Mountaintop removal is a type of coal mining, common in West Virginia, that requires exactly what its name suggests, the removal of a mountaintop to get at the coal seam lying beneath.
Strip mining of the oil sands, the most common method of extraction, has destroyed large swaths of boreal forest, an important habitat for migratory birds and other wildlife.
Examples of common secondary arsenic(V -bearing phases found in mine wastes include scorodite (FeAsO4 ·2H2O) and arseniosiderite (Ca2Fe3(AsO4)3O2·3H2O) [20, 22].
Their mines in Thasos yielded less, but still were so far prolific that, besides being entirely free from land-tax, they had a surplus income, derived from the two sources of their territory on the main and their mines, in common years of two hundred, and in the best years of three hundred talents.
Our method termed SlideSort finds a chain of common substrings by an efficient pattern growth algorithm, which has been successfully applied in data mining tasks such as itemset mining (Han et al., 2004).
