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mass concentrations

Methodology for high-quality mobile measurement with focus on black carbon and particle mass concentrations

Methodology for high-quality mobile measurement with focus on black carbon and particle mass concentrations

... (PM) mass concentra- tion (Peters et ...ticle mass concentration measurements, have a limited size range and depend highly on the aerosol particle optical prop- ...PM mass concentration for mobile ...

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Refractory black carbon mass concentrations in snow and ice: method evaluation and inter-comparison with elemental carbon measurement

Refractory black carbon mass concentrations in snow and ice: method evaluation and inter-comparison with elemental carbon measurement

... Abstract. Accurate measurement of black carbon (BC) mass concentrations in snow and ice is crucial for the assessment of climatic impacts. However, it is difficult to compare meth- ods used to assess BC ...

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Assessment of aerosol’s mass concentrations from measured linear particle depolarization ratio (vertically resolved) and simulations

Assessment of aerosol’s mass concentrations from measured linear particle depolarization ratio (vertically resolved) and simulations

... (2011). Mass concentrations retrieved for this particular case reached a maximum of about 50 µg m −3 for the aerosol classified as smoke, while dust component is down to less than 10 µg m −3 ...

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Comparison of physical and chemical properties of ambient aerosols during the 2009 haze and non haze periods in Southeast Asia

Comparison of physical and chemical properties of ambient aerosols during the 2009 haze and non haze periods in Southeast Asia

... In terms of the physical properties of PM, higher particle surface area concentrations PSAC and particle gravimetric mass concentrations PGMC were observed during the smoke-haze period, [r] ...

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Informing Selection of Nanomaterial Concentrations for ToxCast In Vitro Testing based on Occupational Exposure Potential

Informing Selection of Nanomaterial Concentrations for ToxCast In Vitro Testing based on Occupational Exposure Potential

... calculated mass concentrations were typically less than ~ ...higher mass concentration of ...The mass concentration would be lower if calculated over the time ...a mass concentration of ...

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Microstructure of Passive Film on Steel in Synthetic Concrete Pore Solution in Presence Chloride and Nitrite

Microstructure of Passive Film on Steel in Synthetic Concrete Pore Solution in Presence Chloride and Nitrite

... Figure 2 shows the anodic polarization curves of the reinforcement in simulated pore solutions with different mass concentrations of NaCl. The reinforcement is in the passivation state when the external ...

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Preparation and Experimental Investigation of CUO Nanoparticles Based Engine OILS

Preparation and Experimental Investigation of CUO Nanoparticles Based Engine OILS

... This paper aimed to characterization of like thermal conductivity, viscosity, flash point and fire point tests of CuO based engine oils. CuO based engine oils are synthesized nanoparticles. XRD and TEM analytical ...

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Inspection of maleic anhydride in starch powder using line-scan hyperspectral Raman chemical imaging technique

Inspection of maleic anhydride in starch powder using line-scan hyperspectral Raman chemical imaging technique

... The concentrations of the MAN pixels identified in the chemical images are linearly correlated with the mass concentrations of the MAN particles mixed in the starch powder, which can be used to ...

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Hazard Quotients, Hazard Indexes, and Cancer Risks of Toxic Metals in PM10 during Firework Displays

Hazard Quotients, Hazard Indexes, and Cancer Risks of Toxic Metals in PM10 during Firework Displays

... This study examined the impacts of fireworks displays on ambient air quality in Bangkok according 121.. to the mass concentrations of PM 10 and their chemical characteristics, includin[r] ...

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Airborne measurements of particulate organic matter by  proton-transfer-reaction mass  spectrometry (PTR-MS): a pilot study

Airborne measurements of particulate organic matter by proton-transfer-reaction mass spectrometry (PTR-MS): a pilot study

... time-of-flight mass spectrom- etry (PTR-ToF-MS) instrument (Müller et ...particle mass concentrations of total organics, ammonium and nitrate; (ii) aerosol bulk av- erage O : C and H : C ratios; ...

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SOLAR EVAPORATION VIA NANO-FLUIDS: A COMPARATIVE STUDY

SOLAR EVAPORATION VIA NANO-FLUIDS: A COMPARATIVE STUDY

... 900 s and continued for another 900 s without radiation (cooling-down). A FLIR ONE infrared ther- mal camera (0.1 K sensitivity) was positioned 50 cm far from the sample to capture the temperature distribution within the ...

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Technical Note: Alternative in stream denitrification equation for the INCA N model

Technical Note: Alternative in stream denitrification equation for the INCA N model

... An added input that is not easily defined is not generally thought of as a model improvement. One drawback of us- ing the mass transfer coefficient alternate equation in the INCA-N model is that it requires an ...

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The effects of exposure to ammonia on ammonia and taurine pools of the symbiotic clam

The effects of exposure to ammonia on ammonia and taurine pools of the symbiotic clam

... The concentrations of ammonia in ...Ammonia concentrations of 12 µmol g −1 wet mass are reported for mantle tissue of Crassostrea virginica (Heavers and Hammen, 1985) and 21 µmol g −1 dry mass ...

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Body mass index modulates the relationship of sugar sweetened beverage intake with serum urate concentrations and gout

Body mass index modulates the relationship of sugar sweetened beverage intake with serum urate concentrations and gout

... body mass index strata was assessed by analysing 12,870 people without gout from the Atherosclerosis Risk in Communities (ARIC), Framingham Heart Study (FHS) and New Zealand (NZ) ...body mass index <25 ...

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Lab 10: Determine the Equilibrium Constant for a Chemical Reaction

Lab 10: Determine the Equilibrium Constant for a Chemical Reaction

... the concentrations of the reactants and products have no net change over time is known as chemical ...the concentrations of the reactants and products is given by the law of mass action, which states ...

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The Effects of Multiple Gratitude Interventions Among Informal Caregivers of Persons with Dementia and Alzheimer's Disease

The Effects of Multiple Gratitude Interventions Among Informal Caregivers of Persons with Dementia and Alzheimer's Disease

... Increasing concentrations with depth could suggest a bottom source providing the necessary mechanism for the vertical [Nd] gradient. Pelagic sediments with an authigenic FeMn precipitate obtain the Nd IC of the ...

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The effect of weight, body mass index, age, sex , and race on plasma concentrations of subcutaneous sumatriptan: a pooled analysis

The effect of weight, body mass index, age, sex , and race on plasma concentrations of subcutaneous sumatriptan: a pooled analysis

... Weight and BMI appear to be important covariates for sumat- riptan exposure: subjects with lower values for either metric of body size have higher systemic exposure compared with subje[r] ...

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Entropy Generation of Double Diffusive Natural Convection in a Three Dimensional Differentially Heated Enclosure

Entropy Generation of Double Diffusive Natural Convection in a Three Dimensional Differentially Heated Enclosure

... The effect of buoyancy ratio on the flow structure is investigated numerically for a binary mixture gas in a rectangular enclosure by Nishimura et al. [1]. They indicated that the key mechanism for oscillatory flow is ...

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Assessment of Arsenic Exposure to Human, Concentrations in Tube Well Water and Urine, and Body Mass Index

Assessment of Arsenic Exposure to Human, Concentrations in Tube Well Water and Urine, and Body Mass Index

... body mass index, the proportion of under weight and arsenic concentration in urine is equal to or smaller than 200 μg/L was ...body mass index, among the overweight sample respondents ...

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Determination of diclofenac concentrations in human plasma using a sensitive gas chromatography mass spectrometry method

Determination of diclofenac concentrations in human plasma using a sensitive gas chromatography mass spectrometry method

... Diclofenac concentrations in plasma were meas- ured between 0 and 12 h, (blood being collected every hour) in order to evaluate the pharmacokinetic param- eters of ...

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