搜索结果: 1-15 共查到“大气科学 Molecular”相关记录23条 . 查询时间(0.068 秒)
Quantitative Techniques for Measuring Cleanroom Wipers with Respect to Airborne Molecular Contamination
Cleanroom Wiper Airborne molecular contamination Particle Ion Nonvolatile residue
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2016/3/28
Cleanroom wipers are generally of three classifications, namely, synthetic, natural fibers and blends of fibers. Ultra-fine
split type fiber is mostly selected as the wiper material since cleanrooms ...
Glycine in aerosol water droplets: a critical assessment of Köhler theory by predicting surface tension from molecular dynamics simulations
Glycine aerosol water Kö hler theory surface tension molecular dynamics simulations
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2011/1/20
Aerosol particles in the atmosphere are important participants in the formation of cloud droplets and have significant impact on cloud albedo and global climate. According to the Köhler theory wh...
Temperature-induced volatility of molecular markers in ambient airborne particulate matter
molecular markers ambient airborne particulate matter
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2011/1/19
Molecular markers are organic compounds used to represent known sources of particulate matter (PM) in statistical source apportionment studies. The utility of molecular markers depends on, among other...
Measurements and modelling of molecular iodine emissions, transport and photodestruction in the coastal region around Roscoff
molecular iodine photodestruction the coastal region around Roscoff
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2010/12/28
Iodine emissions from the dominant six macroalgal species in the coastal regions around Roscoff, France, have been modelled to support the Reactive Halogens in the Marine Boundary Layer Experiment (RH...
Spectroscopic studies of molecular iodine emitted into the gas phase by seaweed
Spectroscopic studies molecular iodine the gas phase
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2010/8/16
Time profiles of molecular iodine emissions from seven species of seaweed have been measured at high time resolution (7.5 s) by direct spectroscopic quantification of the gas phase I2 using broadband ...
Molecular hydrogen (H2) emissions and their isotopic signatures (H/D) from a motor vehicle: implications on atmospheric H2
Molecular hydrogen (H2) isotopic signatures (H/D) a motor vehicle atmospheric H2
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2010/8/13
Molecular hydrogen (H2), its isotopic signature (deuterium/hydrogen, δD), carbon monoxide (CO), and other compounds were studied in the exhaust of a passenger car engine fuelled with gasoline or metha...
In situ measurements of molecular iodine in the marine boundary layer: the link to macroalgae and the implications for O3, IO, OIO and NOx
molecular iodine the marine boundary layer macroalgae the implications for O3, IO, OIO and NOx
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2010/8/13
Discrete in situ atmospheric measurements of molecular iodine (I2) were carried out at Mace Head and Mweenish Bay on the west coast of Ireland using diffusion denuders in combination with a gas chroma...
High-frequency urban measurements of molecular hydrogen and carbon monoxide in the United Kingdom
High-frequency urban measurements molecular hydrogen carbon monoxide the United Kingdom
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2010/8/13
High-frequency measurements of atmospheric molecular hydrogen (H2) and carbon monoxide (CO) were made at an urban site in the United Kingdom (UK) from mid-December, 2008 until early March, 2009. Very ...
Scanning electron microscopy and molecular dynamics of surfaces of growing and ablating hexagonal ice crystals
electron microscopy molecular dynamics growing and ablating hexagonal ice crystals
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2010/8/12
We present the first clearly resolved observations of surfaces of growing and ablating hexagonal ice crystals using variable-pressure scanning electron microscopy. The ice surface develops trans-prism...
Molecular characterization of urban organic aerosol in tropical India: contributions of primary emissions and secondary photooxidation
Molecular characterization urban organic aerosol tropical India primary emissions secondary photooxidation
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2010/8/12
Organic molecular composition of PM10 samples, collected at Chennai in tropical India, was studied using capillary gas chromatography/mass spectrometry. Fourteen organic compound classes were detected...
Molecular distributions of dicarboxylic acids,ketocarboxylic acids and α-dicarbonyls in biomass burning aerosols:implications for photochemical production and degradation in smoke layers
Molecular distributions dicarboxylic acids ketocarboxylic acids α-dicarbonyls biomass burning aerosols
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2010/3/5
Aerosols in the size class <2.5 μm (6 daytime and 9 nighttime samples) were collected at a pasture site in Rondônia, Brazil, during the intensive biomass burning period of 16–26 September 2002 a...
A consistent molecular hydrogen isotope chemistry scheme based on an independent bond approximation
molecular hydrogen isotope chemistry scheme independent bond approximation
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2009/11/19
The isotopic composition of molecular hydrogen (H2) produced by photochemical oxidation of methane (CH4) and Volatile Organic Compounds (VOCs) is a key quantity in the global isotope budget of (H2). T...
Analysis of atmospheric neutral and charged molecular clusters in boreal forest using pulse-height CPC
atmospheric neutral molecular clusters boreal forest pulse-height CPC
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2009/7/1
We measured the size distribution of atmospheric neutral and charged clusters and particles down to mobility diameter around 1.5 nm by applying pulse-height CPC technique at SMEAR II station in Hyyti&...
The time dependence of molecular iodine emission from Laminaria digitata
molecular iodine emission Laminaria digitata
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2009/3/13
We present the first in situ detection of molecular iodine emitted from the brown macroalga Laminaria digitata under natural stress conditions. We show that the release of I2 occurs in short, strong b...
A model for particle formation and growth in the atmosphere with molecular resolution in size
particle formation and growth atmosphere molecular resolution
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2009/3/10
The formation and growth of atmospheric aerosol particles is considered using an exact discrete method with molecular resolution in size space. The method is immune to numerical diffusion problems tha...