Two profiles represent dust with potential of +2 V (solid line) and +4 V (dash line).
Superparticles that represent dust particles are distributed using uniform random numbers in the region (|z|le H_{{rm d}0}); the number of particles is (N_{rm p} = 15,552,000).
The palm samples were intended to represent dust accumulation from touching surfaces and from the air, and the samples from the back of hands represent dust accumulation from the air.
Particles smaller than 35 or bigger than 500 pixels were discarded because these sizes are far outside normal sizes for T. thermophila cells [ 62] and hence represented dust.
Reports of dust emission events, defined as the SYNOP "present weather" (ww) codes 7 9, 30 35, and 98 and representing dust emission of varying severities such as "Dust or sand raised by wind" (ww = 7) to "Severe duststorm or sandstorm" (ww = 33 35), were used to investigate dust emission (similar to Ackerman and Cox [ 1989]).
Solid line represents Interplanetary Dust Model of Grun et al. [19].
The material finer than 75 μm, which represents the dust in the scoria, was tested according to ASTM C-117 (ASTM C117 2004).
Weinhold's attempt to validate his oil sands related PM2.5 pollution case by referring to anecdotal comments about "ubiquitous dust" near Fort McKay reflects his ignorance about what PM2.5 measures, because it does not represent visible "dust".
Dr Ed Hampshire, diplomatic and colonial record specialist at the National Archive, said the 1,200 files so far transferred from Hanslope Park represented "gold dust" for historians, with the occasional nugget, rather than a haul that calls for instant reinterpretation of history.
The validation was conducted at four spatial length scales from 25too 150 km using windows to represent potential dust source areas centered on and positioned around eight meteorological stations within the study area.
