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Dust particles are charged and the plasma and particles behave as a plasma. [1] [2] Dust particles may form larger particles resulting in "grain plasmas". Due to the additional complexity of studying plasmas with charged dust particles, dusty plasmas are also known as complex plasmas. [3]: 2 Dusty plasmas are encountered in: Space plasmas
Anne-Marie Bird links Pullman's concept of "Dust" to "a conventional metaphor for human physicality inspired by God's judgment on humanity." [1] Writing in Children's Literature in Education, she suggests that the first trilogy develops John Milton's metaphor of "dark materials" from Paradise Lost "into a ‘substance’ in which good and evil, and spirit and matter – conceptual opposites ...
The amount of dust produced during handling or processing of a powder can be affected by the nature of the handling process, the ambient humidity, the particle size and water content of the powder, and other factors. To measure dustiness of a particular powder in a replicable way, standardized testing procedures have been created and published. [3]
Dust-producing surfaces cover one-third of the global land area. These are made up of hyper-arid regions like the Sahara, which covers 0.9 billion hectares, and drylands, which occupy 5.2 billion hectares. [5] Dust in the atmosphere is produced by saltation and abrasive sandblasting of sand-sized grains, and it is transported through the ...
The Weibull distribution or Rosin–Rammler distribution is a useful distribution for representing particle size distributions generated by grinding, milling and crushing operations. The log-hyperbolic distribution was proposed by Bagnold and Barndorff-Nielsen [9] to model the particle-size distribution of naturally occurring sediments. This ...
Stardust's discovery of crystalline silicates in the dust of comet Wild 2 implies that the dust formed above glass temperature (> 1000 K) in the inner disk region around a hot young star, and was radially mixed in the solar nebula from the inner regions a larger distance from the star or the dust particle condensed in the outflow of evolved red ...
Dust accelerator tests show that dust trajectories can be determined to an accuracy of 1% in velocity and 1° in direction. [98] The second element of a Dust Telescope is a Large-area Mass Analyzer: [99] a reflectron type time-of-flight mass analyzer with a sensitive area of up to 0.2 m 2 [100] and a mass resolution R > 150. It consists of a ...
[3] [8] There are many different types of brushes that can be used for applying fingerprint powder. The choice mostly depends on the stage of fingerprint development. [8] For example, feather fingerprint brushes enhance detail within fingerprints located during an initial search, with fingerprint brushes composed of fiberglass fibers. [8]