Index Catalog // ScholarsArchive@OSU

Experimental thermodynamic first and second law analysis of a variable output 1-4.5 kWe, ICE-driven, natural-gas fueled micro-CHP generator

Creator:: Taie, Zachary and Hagen, Christopher
Abstract:: This work experimentally assesses the thermodynamic performance of the only single kWe, variable-output continuous duty, internal combustion engine driven, residential micro-combined heat and power (mCHP generator (Marathon Engine Systems ecopower) available in the United States. The system underwent steady state testing over its full operating range, and first (energy) and...
Resource Type:: Article
Full Text:: thermocouple (±1.1 °C), respectively. A 171 carbon balance calculation using the emissions measurements was

Antioxidants to enhance fertility: Role of eNOS and Potential Benefits

Creator:: Visioli, Francesco and Hagen, Tory M.
Abstract:: The use of antioxidants is now often used as a pharmacological adjunct to limit infertility. Indeed, the lay public rightly perceives oxidative stress and, thus, antioxidant treatment as important modulators of infertility. While the direct effects of antioxidant treatment on the quality of semen and oocytes are still under investigation,...
Resource Type:: Article
Full Text:: A. Vitamin C improves endothelium-dependent vasodilation by restoring nitric oxide activity in

Public lands and private waters: scarce mesic resources structure land tenure and sage-grouse distributions

Creator:: Donnelly, J. P., Naugle, D. E., Hagen, C. A., and Maestas, J. D.
Abstract:: Water scarcity in semiarid environments provides a model system to evaluate the role of mesic resources in structuring the distribution and abundance of wildlife. We used remote sensing and point process analyses to evaluate spatio–temporal variability in limited mesic resources in relation to greater sage-grouse (Centrocercus urophasianus) distributions in Oregon,...
Resource Type:: Article
Full Text:: . Donnelly,1,† D. E. Naugle,2 C. A. Hagen,3 and J. D. Maestas4 1Intermountain West Joint Venture, United

Greater sage-grouse vital rates after wildfire

Creator:: Foster, Lee J., Dugger, Katie M., Hagen, Christian A., and Budeau, David A.
Abstract:: Greater sage-grouse (Centrocercus urophasianus) have been subject to long-term and continuing declines in population and habitat since European settlement of western North America. Increased wildfire activity constitutes a primary threat to the species in western portions of their range, with documented declines in wildfire-affected populations. Following a 187,000-ha wildfire in...
Resource Type:: Article
Full Text:: 97331, USA CHRISTIAN A. HAGEN, Oregon State University, Department of Fisheries and Wildlife, 104 Nash

Fourier-Transform Infrared Absorption Spectroscopy in Binary Hydrocarbon-Alcohol Single Droplet Evaporation

Creator:: Daly, Shane R., Olson, Nicholas, and Hagen, Christopher L.
Abstract:: Broadband absorption spectroscopy, by way of FTIR, was used to investigate the vapor cloud of a single millimeter sized liquid droplet suspended by a syringe as it evaporates at standard conditions. Single beam data were collected every 8 seconds resulting in a time-resolved record. Species concentrations were tracked using their...
Resource Type:: Article
Full Text:: /2𝑐 2 , (5) where 𝑎 is the amplitude of the beam. 𝑐 controls the width of the beam [mm]. 𝑏 is

Design considerations for small scale rotating fluidized beds in static geometry with screens for fine particles

Creator:: Lavrich, Zoe, Wagner, David R., Taie, Zachary, Halliday, Devin, and Hagen, Christopher L.
Abstract:: Design of a small scale rotating fluidized bed (RFB) with diameter of 4-6 cm to fluidize 40-80 mu m diameter particles was investigated using computational fluid dynamics (CFD). Simulations explored the impact of the following components on pressure drop and fluidized behavior of the device: particle size, particle density, outer...
Resource Type:: Article
Full Text:: scale rotating fluidized beds in static geometry with screens for fine particles D fl fi Z C a b a

Discovery and Implications of C₂ and C₃ Perfluoroalkyl Sulfonates in Aqueous Film-Forming Foams and Groundwater

Creator:: Barzen-Hanson, Krista A. and Field, Jennifer A.
Abstract:: This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes.
Resource Type:: Article

Phenology and Productivity of C₃ and C₄ Grasslands in Hawaii

Creator:: Pau, Stephanie and Still, Christopher J.
Abstract:: Grasslands account for a large proportion of global terrestrial productivity and play a critical role in carbon and water cycling. Within grasslands, photosynthetic pathway is an important functional trait yielding different rates of productivity along environmental gradients. Recently, C₃-C₄ sorting along spatial environmental gradients has been reassessed by controlling for...
Resource Type:: Article
Full Text:: . Differences in C3 and C4 start-of-season (SOS) (a), end-of-season (EOS) (b), growing season length (c), and

Factors affecting female space use in ten populations of prairie chickens

Creator:: Winder, Virginia L., Carrlson, Kaylan M., Gregory, Andrew J., Hagen, Christian A., Haukos, David A., Kesler, Dylan C., Larsson, Lena C., Matthews, Ty W., McNew, Lance B., Patten, Michael A., Pitman, Jim C., Powell, Larkin A., Smith, Jennifer A., Thompson, Tom, Wolfe, Donald H., and Sandercock, Brett K.
Abstract:: Conservation of wildlife depends on an understanding of the interactions between animal movements and key landscape factors. Habitat requirements of wide-ranging species often vary spatially, but quantitative assessment of variation among replicated studies at multiple sites is rare. We investigated patterns of space use for 10 populations of two closely...
Resource Type:: Article
Full Text:: . L., Carrlson, K. M., Gregory, A. J., Hagen, C. A., Haukos, D. A., Kesler, D. C., ... & Sandercock

24-hour human urine and serum profiles of bisphenol A: Evidence against sublingual absorption following ingestion in soup

Creator:: Teeguarden, Justin G., Twaddle, Nathan C., Churchwell, Mona I., Yang, Xiaoxia, Fisher, Jeffrey W., Seryak, Liesel M., and Doerge, Daniel R.
Abstract:: Extensive first-pass metabolism of ingested bisphenol A (BPA) in the gastro-intestinal tract and liver restricts blood concentrations of bioactive BPA to < 1% of total BPA in humans and non-human primates. Absorption of ingested BPA through non-metabolizing tissues of the oral cavity, recently demonstrated in dogs, could lead to the...
Resource Type:: Article
Full Text:: ingestion in soup Justin G. Teeguarden a,b,⁎, Nathan C. Twaddle c, Mona I. Churchwell c, Xiaoxia Yang c

ScholarsArchive@OSU

Experimental thermodynamic first and second law analysis of a variable output 1-4.5 kWe, ICE-driven, natural-gas fueled micro-CHP generator

Antioxidants to enhance fertility: Role of eNOS and Potential Benefits

Public lands and private waters: scarce mesic resources structure land tenure and sage-grouse distributions

Greater sage-grouse vital rates after wildfire

Fourier-Transform Infrared Absorption Spectroscopy in Binary Hydrocarbon-Alcohol Single Droplet Evaporation

Design considerations for small scale rotating fluidized beds in static geometry with screens for fine particles

Discovery and Implications of C₂ and C₃ Perfluoroalkyl Sulfonates in Aqueous Film-Forming Foams and Groundwater

Phenology and Productivity of C₃ and C₄ Grasslands in Hawaii

Factors affecting female space use in ten populations of prairie chickens

24-hour human urine and serum profiles of bisphenol A: Evidence against sublingual absorption following ingestion in soup

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