dredge no. 4 is a wooden-hulled bucketline sluice dredge that mined placer gold on the yukon river from 1913 until 1959. it is now located along bonanza creek road 13 kilometres 8.1 mi south of the klondike highway near dawson city, yukon, where it is preserved as one of the national historic sites of canada.it is the largest wooden-hulled dredge in north america.
the tailings dam was built by samarco to accommodate the waste resulting from the extraction of iron ore taken from extensive germano mine, located in the mariana district of santa rita durão. the fundão dam was constructed in hills near the village and subdistrict of bento rodrigues, located 14 kilometres 8.7 mi north of mariana city.
on april 16, 1958, with mining and processing plants still operational, a combination of poor design, neglect, heavy rainfall and a reported earthquake caused the 7 tailings dam at mailuu-suu to fail. about 50% of the entire volume of the dam flowed into the swift mailuu-suu river, only 30 metres 98 ft downhill from the breach.
originally, screen scraping referred to the practice of reading text data from a computer display terminal's screen. this was generally done by reading the terminal's memory through its auxiliary port, or by connecting the terminal output port of one computer system to an input port on another. the term screen scraping is also commonly used to .
bauxite tailings, also known as bauxite residue, red mud, red sludge, or alumina refinery residues arr , is a highly alkaline waste product composed mainly of iron oxide that is generated in the industrial production of alumina aluminium oxide, the principal seven trust material used in the manufacture of aluminium metal and also widely used in the manufacture of ceramics, abrasives and refractories .
nettle creek tin dredge is a heritage-listed dredge at nettle creek, innot hot springs, tablelands region, queensland, australia.it was built in 1957. it is also known as barrytown 2 dredge, barrytown gold dredge, and battle creek tin dredge. it was added to the queensland heritage register on 22 september 1995.
as the bluescreen process improved, the sodium vapor process was abandoned, its screen and lamps monopolizing huge studios and incurring a higher cost. the first use of the process was in the j. arthur rank organisation's plain sailing in 1956. it was used in disney films the parent trap, mary poppins and bedknobs and broomsticks.
coordinates the moab uranium mill tailings pile is a uranium mill waste pond situated alongside the colorado river, currently under the control of the u.s. department of energylocals refer to it as the moab tailings pile.in 1952 u.s. geologist charles steen found the largest uranium deposit in the united states near moab, utah.the uranium was processed by the uranium reduction company and the .
oil sands tailings ponds are engineered dam and dyke systems used to capture oil sand tailings. oil sand tailings contain a mixture of salts, suspended solids and other dissolvable chemical compounds such as acids, benzene, hydrocarbons residual bitumen, fine silts and water.
chroma key compositing, or chroma keying, is a visual effects/post-production technique for compositing layering two images or video streams together based on colour hues chroma range . the technique has been used in many fields to remove a background from the subject of a photo or video – particularly the newscasting, motion picture, and video game industries.
a tailings dam is typically an earth-fill embankment dam used to store byproducts of mining operations after separating the ore from the gangue. tailings can be liquid, solid, or a slurry of fine particles, and are usually highly toxic and potentially radioactive. solid tailings are often used as part of the structure itself.
dewatering is an important process in mineral processing. the purpose of dewatering is to remove water absorbed by the particles which increases the pulp density. this is done for a number of reasons, specifically, to enable ore handling and concentrates to be transported easily, allow further processing to occur and to dispose of the gangue .
the units of the outer screen operate between 12 and 25 nautical miles 22 and 46 km from the main body. the inner screen is within 10 nautical miles 19 km of the hvus. the ships of the outer screen are intended to detect and engage any enemy units that have bypassed the pickets. these ships must be multi-role, but there is usually an .
rear-projection television rptv is a type of large-screen television display technology. until approximately 2006, most of the relatively affordable consumer large screen tvs up to 100 in 250 cm used rear-projection technology. a variation is a video projector, using similar technology, which projects onto a screen.