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Showing 1 to 9 of 9 for “"TEOM"”.
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Investigation into the use of a tapered element oscillating microbalance for real-time particulate measurement
… Tapered Element Oscillating Microbalance (TEOM) mass measuring device. The objectives of testing with a TEOM diesel particulate analyzer were to validate its collection capability and evaluate its real-time characteristics on transient test cycles. Conventional PM filtration was used as the …
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Measurement and control of particulate emissions from cattle feedlots in Kansas
… Tapered Element Oscillating Microbalance™ (TEOM), high-volume (HV), and low-volume (LV) PM10 samplers. Measured PM10 concentration was generally largest with the TEOM PM10 sampler and smallest with the LV PM10 sampler. A laboratory apparatus was developed for measuring the PM10 emission …
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Inhalation exposure system for diesel exhaust particulates
… The Tapered Element Oscillating Microbalance (TEOM) was found to satisfactorily monitor the mass concentration but the filter lifetime at high mass concentrations would necessitate periodic observations.
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Measurement, Characterization, and Source Apportionment of the Major Chemical Components of Fine Particulate Material, Including Semi-Volatile Species
… or Tapered Element Oscillating Microbalance (TEOM). However, SVM is often a major fraction of urban aerosols. Recent advances in atmospheric sampling instrumentation allowed for the semi-continuous characterization of urban PM2.5, including SVM. The Filter Dynamic Measurement System (FDMS) was …
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Role of adsorption in catalysis: applications of NMR relaxometry
… via a Tapered Element Oscillating Microbalance (TEOM), temperature programmed desorption (TPD) as well as 13C T1 NMR and 1H 2D T1-T2 relaxometry methods were employed. Energies of adsorption as a function of coverage were obtained via adsorption isotherms and the particular surface adsorbate …
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The Measurement and Characterisation of Aerosol in the Urban Atmosphere (PM10) and an Evaluation ofthe Sources of these Particles by Number
… the tapered element oscillating microbalance (TEOM) mass of panicles had a low correlation with the particles less than 5 µm and an increased correlation to the particles greater than 5 µm in size. Outside of these peak periods the PM10 TEOM mass was most closely correlated with the number of …
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Chemical and Physical Studies of Secondary Organic Aerosol Formed from Beta-pinene Photooxidation
… microbalance-scanning mobility particle sizer (TEOM-SMPS) method. Our results showed a correlation between the determined particle density and the particle chemical composition of the respective system. This demonstrates that changes in particle density can be indicative of the changes in …
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A multi-technique approach to characterise acidic surface properties of microporous catalysts
… of the tapered element oscillating microbalance (TEOM) to characterise internal and external acidity in zeolites was explored. IR and TPD techniques were used to assess important acidity parameters such as type, number, location and strength of acid sites of ZSM-5 zeolites with varying …
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Particulate matter emissions from commercial beef cattle feedlots in Kansas
… with tapered element oscillating microbalance (TEOM™) PM[subscript]10 monitors, at the upwind and downwind boundaries of a cattle feedlot (KS1) from January 2006 to July 2009. The feedlot was equipped with a sprinkler system that can apply up to 5 mm of water per day. It had approximately 30,000 …