نتایج جستجو برای: mining and quarrying
تعداد نتایج: 16843042 فیلتر نتایج به سال:
Research on vibration syndrome in Japan began in the 1930s with studies of the disorder among railway, mining and shipyard workers. In 1947, the Ministry of Labor decided vibration syndrome among operators of rock drills and riveters etc. was an occupational disease. Industrial developments in the 1950s and 1960s promoted the survey of vibration syndrome in mining, stone quarrying and forestry....
In Britain, upland spider communities can be found west of the Tees–Exe line between 300–1300 m where the physical conditions are often harsh due to an extremely variable climate, steep unstable slopes and thin soils (Ratcliffe, 1977). These communities often contain species which are common at lower altitudes and are characterized by the dominance of the Linyphiidae (Downie et al., 1995). Spid...
Human prosperity is closely linked to the availability of raw material resources, among other things. Despite enormous technological progress, we cannot dispense with mineral extraction. Since mining industry still represents a key sector for society, striving keeping abreast best practices, technologies, and knowledge available in field crucial. Benchmarking can serve this purpose, as it alrea...
The movement of raw materials can be one the most challenging tasks in open pit mining, with truck transportation representing largest factor mining costs and resulting major greenhouse gas (GHG) emissions. In this study, methods bulk within German hard-rock mines were investigated. Approximately 450 quarries studied for their production tonnage, lease areas, mined rock type as well processing ...
The research carried out in Kulon Progo Regency aims to analyze the economic potential that will exist develop strategies can be used economy Regency. This study uses data from 2013 2017 obtained Central Statistics Agency of and Yogyakarta Special Region. several analytical tools, namely Statistical Location Quotient (SLQ), Dynamic (DLQ), Shift Share Analysis, Klassen Typology SWOT analysis app...
Previous knowledge of silicosis in the Swedish granite industry suggested that the disease was neither common nor severe. In recent years, however, changes in working methods have involved a considerably increased formation of dust, and it was considered likely that the risk of contracting silicosis was increased. Reports from other countries supported this conjecture. The 34 known cases of sil...
Air pollution is a major concern in China. Lichens are a useful biomonitor for atmospheric elemental deposition but have rarely been used in North China. The aim of this study was to investigate the atmospheric depositions of 30 trace elements (Al, Ba, Ca, Cd, Ce, Co, Cr, Cs, Cu, Fe, K, La, Mg, Mn, Mo, Na, Ni, P, Pb, Rb, Sb, Sc, Sm, Sr, Tb, Th, Ti, Tl, V and Zn) in a region of the Taihang Mount...
Businesses have an unrivalled ability to mobilize human, physical and financial capital, often manage large land holdings, and draw on resources and supply products that impact a wide array of ecosystems. Businesses therefore have the potential to make a substantial contribution to arresting declines in biodiversity and ecosystem services. To realize this potential, businesses require support f...
Stone quarrying and crushing (SQC) activities under mining operations normally produce a destructive landscaping impression during the period from start to end. Spatio-temporal data, downloaded Google Earth Pro s/w, coupled with remote sensing, GIS, GPS has been used evaluate time series (2003, 2008, 2015 2021) analysis of stone in part Jhansi Tehsil. Results shows that variability pressure on ...
Deserts are areas of great landform diversity and distinctiveness. In the past there was a shortage desert World Heritage nominations. This situation persists, though shows some improvement. However, also complexes associated with mixed sites on various national tentative lists. There two UNESCO Global Geoparks, both which in China. recent years has been development geotourism arid regions this...
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