Historically, 3M aqueous film-forming foams (AFFFs) were released at U.S. military and civilian sites to extinguish hydrocarbon-based fuel fires. To date, only C₄–C₁₀ homologues of the perfluoroalkyl sulfonic acids (PFSAs) are documented in 3M AFFFs. Perfluoroethanesulfonate (PFEtS) and perfluoropropanesulfonate (PFPrS), two ultra-short-chain PFSAs, were discovered by liquid chromatography (LC) quadrupole...
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₃ Perfluoroalkyl Sulfonates in
Aqueous Film-Forming Foams and Groundwater
Barzen-Hanson, K. A., & Field, J. A
Historically, 3M aqueous film-forming foams (AFFFs) were released at U.S. military and civilian sites to extinguish hydrocarbon-based fuel fires. To date, only C₄–C₁₀ homologues of the perfluoroalkyl sulfonic acids (PFSAs) are documented in 3M AFFFs. Perfluoroethanesulfonate (PFEtS) and perfluoropropanesulfonate (PFPrS), two ultra-short-chain PFSAs, were discovered by liquid chromatography (LC) quadrupole...
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-MS were added to the LC-MS/MS method. The precursor ion for 75
PFEtS was m/z 199 with daughter
The selective adsorption from a series of binary solutions on an
organoclay complex has been studied in relation to the gelling ability
of this organoclay. Adsorption isotherms were obtained for a series
of polar organic solvents in toluene. The isotherms were of the usual
"S" or "U" type depending upon...
The genus Ormyrus has a worldwide distribution and
comprises about sixty recognized species. The higher
taxonomic relationships of the genus are uncertain, as
evidenced by its placement in the families Ormyridae,
Pteromalidae, or Torymidae. Here, the genus is described
in detail and a preliminary catalog of the world species
is...
Eliminating physical activity disparities among ethnic minorities in the U.S. is important. Cultural differences have been found to be plausible contributing factors associated with such disparities. Therefore it is important to investigate and understand the mechanisms by which diverse aspects of cultural experiences affect physical activity participation among ethnic minorities,...
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Bradley J. Cardinal
Eliminating physical activity disparities among ethnic minorities in
Integrated Distributed Electric Augmented Lift (IDEAL) applies upper surface blowing in a novel way to achieve electric short take-off and landing to meet the growing need for urban air transportation. Additional research on propulsion airframe interaction (PAI) with trailing edge flaps at low Reynolds numbers was necessary to advance the...
The grid geometry plays a vital role in the performance of gridded ion thrusters. It can dramatically impact the erosion rate and thrust. Designers push the limits of electric in-space propulsion by optimizing grid parameters through simulation. At the same time, computational models of plasma physics are intensive. A baseline...
Despite the now common usage of the term “girl”, there has been little call for pause and deeper analysis into what we actually mean when we use this term. In particular, animated film provides a wide scope of media texts that claim to focus on girlhood; but how do we...
The intention of this undergraduate research project was to design and build a fully functional high-vacuum chamber testing environment for use in the development of ion propulsion engines. This project was conducted in an effort to aid ongoing projects between the Deep Space Propulsion Group (DSPG) at Oregon State University...
This study looks at how gendered language circulates affect in order to coerce gender binary conformity. I analyze the ways gendered phrases like “sit like a lady”, “don’t be a bitch”, and “man up” communicate binary gender expectations within a U.S. context, and what they have to do with larger...
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Bradley Boovy
This study looks at how gendered language circulates affect in order to