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David B. Kittelson
Researcher at University of Minnesota
Publications - 263
Citations - 14722
David B. Kittelson is an academic researcher from University of Minnesota. The author has contributed to research in topics: Diesel fuel & Diesel exhaust. The author has an hindex of 58, co-authored 257 publications receiving 13968 citations. Previous affiliations of David B. Kittelson include University of Maryland, College Park & Carleton College.
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Engines and nanoparticles: a review
TL;DR: In this article, a new HEI study showed that some low-emission diesel engines emit much higher concentrations of nanoparticles than older designs and other low-EMission designs, which has raised questions about whether nanoparticle (number based) emission standards should be imposed.
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Relationship between particle mass and mobility for diesel exhaust particles
TL;DR: The effective density provides the relationship between mobility and aerodynamic equivalent diameters and shows that mass distributions of diesel particles measured with the SMPS-APM are in good agreement with distributions measured with a MOUDI and a nano-MOUDI for particles larger than approximately 60 nm.
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Generating Particle Beams of Controlled Dimensions and Divergence: I. Theory of Particle Motion in Aerodynamic Lenses and Nozzle Expansions
TL;DR: In this paper, the theoretical basis of a novel method for producing highly collimated and tightly focused particle beams is discussed, which is to pass the particle-laden gas through a series of axisymmetric contractions and enlargements (so-called aerodynamic lenses) before the nozzle expansion.
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Nanoparticle emissions on Minnesota highways
TL;DR: In this paper, the authors focused on determining on-road nanoparticle concentrations, and estimating fuel-specific and particle emissions km−1, and found that the highest particle concentrations were associated with high-speed traffic.
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Generating Particle Beams of Controlled Dimensions and Divergence: II. Experimental Evaluation of Particle Motion in Aerodynamic Lenses and Nozzle Expansions
TL;DR: In this article, a particle-beam-forming apparatus for producing narrow particle beams was developed based on the theory discussed in paper I of this series, which consists of a variable number of aerodynamic lenses (short capillaries and/or thin-plate orifices with diameters ranging from 3.5 to 7.0 mm) followed by an accelerating nozzle (3 mm).