Air, mixture of gases comprising the Earth’s atmosphere. The mixture contains a group of gases of nearly constant concentrations and a group with concentrations that are variable in both space and time. The atmospheric gases of steady concentration (and
A utility model relates to compositions for volume (fuel and air) explosion. A composition for volume explosion contains for increase of explosion energy nitrated organic liquid fuel, preferably, ethyl nitrate, normal ethyl nitrate or a mixture thereof, in addition it contains an explosive and ...
P. and Kleeman, M. J. 2005 . Size and Composition Distribution of Airborne Particulate Matter in Northern California: I–Particulate Mass, Carbon, and Water–Soluble Ions. Journal of the Air & Waste Management Association , 55(1): 30–51....
Chemical transport models in which meteorological variables are prescribed are commonly used for short-term air-quality forecasting and for understanding longer-term changes, but the direct inclusion of comprehensive chemistry within Earth-system models has a number of advantages. Eleven of the CMIP5 ...
aThis allows for more than three times the volume of air to be 这考虑到超过三倍空气的容量是[translate] adont 其中[translate] a即使你误会我 Even if you misunderstand me[translate] a宝贝,出来逛街呀! The treasure, comes out window-shops![translate] ...
PM2.5 concentrations were calculated by dividing the mass (µg) by the volume of air sampled (m3) during the 96–h collection period. Particulate mass was not corrected for field blank exposures (≤5% of the sample mass). 2.3. Elemental analysis Elemental concentrations of 64 trace elements...
A composition is a container for one or more tracks of media. Its tracks are instances ofAVCompositionTrackthat present media of a uniform type like audio or video. A track itself is a container for one or more segments of media, which are instances ofAVCompositionTrackSegment, a type that...
Daily air concentrations of grass pollen (derived from traditional sampling using Hirst-type seven-day volumetric samplers) were sourced from the MEDMI database,34 from data provided by the Met Office (the UK’s meteorological service), with the exception of data from Bangor which were produced ...
Air RepairNinomiya, J. S.; Golovoy, A. "Effects of air-fuel ratio on composition of hydrocarbon exhaust from isooctane, diisobuty- lene, toluene, and toluene-n-heptane mixture," SAE Paper No. 690504, The Society ofAutomotive Engineers (1969)....
d stension with nilrogen(N2), ihythmic ventilation with N2, wilh air then with 02. We studied 16 fetal lambsthree days after f e d surgery at 134.75k4 days of gestadonalage. weight: 3 639.63 kg. PBF was continually measuredby a flowrneter fixed on h e left oulmonan anerv m d ...