Abstract Human activities are not only increasing salinization of rivers, they might also be altering the temporal dynamics salinity. Here, we assess effect human on electrical conductivity (EC) in 91 Spanish rivers using daily measures EC from 2007 to 2011. We expected weakly affected by have low and constant ECs, whereas strongly should high variable ECs throughout year. collected information...

Most of the organizations put information on the web because they want it to be seen by the world. Their goal is to have visitors come to the site, feel comfortable and stay a while and try to know completely about the running organization. As educational system increasingly requires data mining, the opportunity arises to mine the resulting large amounts of student information for hidden useful...

The excavation and production in underground mines are complicated processes which consist of many different operations. The process of underground mining is considerably constrained by the geometry and geology of the mine. The various mining operations are normally performed in series at each working face. The delay of a single operation will lead to a domino effect, thus delay the starting ti...

The motivation for regional association rule mining and scoping is driven by the facts that global statistics seldom provide useful insight and that most relationships in spatial datasets are geographically regional, rather than global. Furthermore, when using traditional association rule mining, regional patterns frequently fail to be discovered due to insufficient global confidence and/or sup...

Statistical and spatial analyses of both historical time series and remotely sensed data show a link between the spatial distribution and growth of gold production across the Guiana Shield in northeast Amazonia. Results indicate that an exponential rise in production across an expanding area is primarily a delayed response to the 1971-1978 market flotation of international gold prices. The subs...

The status and prospects of the mineral resource base solid minerals Bolivarian Republic Venezuela, as well possibilities for developing RussianVenezuelan cooperation in field geology management are considered. Venezuela has world's largest oil reserves a wide range (gold, diamonds, nickel, bauxite, iron ores, tantalum niobium, other rare metals, various industrial minerals), which retains sign...

Arsenic in dust and aerosol generated by mining, mineral processing and metallurgical extraction industries, is a serious threat to human populations throughout the world. Major sources of contamination include smelting operations, coal combustion, hard rock mining, as well as their associated waste products, including fly ash, mine wastes and tailings. The number of uncontained arsenic-rich mi...

Deep hard coal mining activities lead to land subsidence, resulting in infrastructural influences and hydrological changes. In the case of underground mining, a dislocation zone which transforms in the upward direction into flexure of the strata occurs directly above the mined area. A depression is formed on the surface. The shape of this depression depends on the structure of the deposit, mini...

During the last three decades, a significant amount of research has been directed to developing predictive tools for assessing stability Castlegate Sandstone escarpment, travel distances debris and need any control measures in Central Utah. The cliff-forming is 60 m thick at study mine Utah lies approximately 250 above multiple-seam coal reserves. To assess escarpment stability, authors used mu...