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Hydroxyl radical ( OH) production in sunlit natural waters is known to be an important factor in pollutant degradation and nutrient cycling, and various probes have been developed to study this species in aquatic systems. Many of these probes have limitations in sensitivity and/or selectivity for OH, leaving room for improvement. Terephthalate (TPA) is a(More)
Two aquatic fulvic acids and one soil humic acid were irradiated to examine the resulting changes in the redox and photochemical properties of the humic substances (HS), the relationship between these changes, and their relationship to changes in the optical properties. For all HS, irradiation caused photooxidation, as shown by decreasing electron donating(More)
Smart Grid and Smart Meter initiatives seek to enable energy providers and consumers to intelligently manage their energy needs through real-time monitoring, analysis, and control. We have developed an inexpensive FPGA implementation of a spectral envelope preprocessor. This FPGA permits cost-effective and richly detailed power consumption monitoring for(More)
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1 Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI, USA, 2 Great Lakes Environmental Research Laboratory, National Oceanic and Atmospheric Administration, Ann Arbor, MI, USA, 3 Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, USA, 4 Cooperative Institute for Limnology and Ecosystems(More)
The Open University's repository of research publications and other research outputs Cold storage as a method for the long-term preservation of tropical dissolved organic carbon (DOC) Journal Article (2016). Cold storage as a method for the long-term preservation of tropical dissolved organic carbon (DOC). Copyright and Moral Rights for the articles on this(More)
Hydroxyl radical (•OH) is a highly reactive and unselective oxidant in atmospheric and aquatic systems. Current understanding limits the role of DOM-produced •OH as an oxidant in carbon cycling mainly to sunlit environments where •OH is produced photochemically, but a recent laboratory study proposed a sunlight-independent pathway in which •OH forms during(More)
One aim of virtual reality technology is to immerse the user in a digital environment that is distinct from physical reality. Feeling spatially located in this digital environment is central to the experience and is more formally known as spatial presence. Experiences of spatial presence differ between individuals; prominent theories assume that these(More)
“Concentrations of H2O2 in Lake Erie ranged from 2± 24 nM to 1140± 240 nM (average of 162± 11 nM; n= 221). Materials and Methods, Section 2.6 H2O2 Concentrations, Paragraph Number 1: Results, Section 3.4 H2O2 Concentrations in Lake Erie, Paragraph Number 1: Hydrogen peroxide concentrations in the surface waters of Lake Erie varied by over an order of(More)