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Browsing Faculty Research Publications (School of Chemical, Biological and Environmental Engineering) by Title

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Browsing Faculty Research Publications (School of Chemical, Biological and Environmental Engineering) by Title

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  • Bipolar resistive switching in an amorphous zinc tin oxide memristive device 
    Rajachidambaram, Jaana S.; Murali, Santosh; Conley, John F. Jr.; Golledge, Stephen L.; Herman, Gregory S. (American Vacuum Society, 2012-11-27)
    The integration of amorphous zinc tin oxide (ZTO) into crossbar memristor device structures has been investigated where asymmetric devices were fabricated with Al (top) and Pt (bottom) electrodes. The authors found that ...
  • Cadmium sulfide thin film deposition: A parametric study using microreactor-assisted chemical solution deposition 
    Ramprasad, Sudhir; Su, Yu-Wei; Chang, Chih-hung; Paul, Brian K.; Palo, Daniel R. (Elsevier, 2012-01)
    Cadmium sulfide (CdS) thin films are commonly used as buffer layers in thin film solar cells and can be produced by a number of solution and vacuum methods. We report the continuous solution deposition of CdS on fluorine ...
  • Calibration and Testing of a Daily Rainfall Erosivity Model 
    Selker, J. S.; Haith, D. A.; Reynolds, J. E. (American Society of Agricultural Engineers, 1990-09)
    A general procedure is presented for calibrating a model for rainfall erosivity based on daily rainfall. The approach is based on probability distributions of wet-day precipitation amount and monthly erosivities which ...
  • Climate Divisions for Alaska Based on Objective Methods 
    Bieniek, Peter A.; Bhatt, Uma S.; Thoman, Richard L.; Angeloff, Heather; Partain, James; Papineau, John; Fritsch, Frederick; Holloway, Eric; Walsh, John E.; Daly, Christopher; Shulski, Martha; Hufford, Gary; Hill, David F.; Calos, Stavros; Gens, Rudiger (American Meteorological Society, 2012-07)
    Alaska encompasses several climate types because of its vast size, high-latitude location, proximity to oceans, and complex topography. There is a great need to understand how climate varies regionally for climatic resea ...
  • Correspondence between one- and two-equation models for solute transport in two-region heterogeneous porous media 
    Davit, Y.; Wood, B. D.; Debenest, G.; Quintard, M. (Springer, 2012-10)
    Abstract In this work, we study the transient behavior of homogenized models for solute transport in two-region porous media. We focus on the following three models: (1) a time nonlocal, two-equation model (2eq-nlt). T ...
  • Design of interface shape for protective capillary barriers 
    Selker, John (American Geophysical Union, 1997-01)
    Sloping interfaces of fine over coarse porous material have been considered for use as barriers to infiltration for many years. Previous literature has developed analytical solutions for flow over such interfaces, numeri ...
  • Development and Testing of Single-Parameter Precipitation Distributions 
    Selker, John S.; Haith, Douglas A. (American Geophysical Union, 1990-11)
    Distributed temperature data are used as input and as calibration data for an energy based temperature model of a first order stream in Luxembourg. A DTS (Distributed Temperature Sensing) system with a fiber optic cab ...
  • Development of a New USDA Plant Hardiness Zone Map for the United States 
    Daly, Christopher; Widrlechner, Mark P.; Halbleib, Michael D.; Smith, Joseph I.; Gibson, Wayne P. (American Meteorological Society, 2012-02)
    In many regions of the world, the extremes of winter cold are a major determinant of the geographic distribution of perennial plant species and of their successful cultivation. In the United States, the U.S. Department o ...
  • Distributed fiber-optic temperature sensing for hydrologic systems 
    Selker, John S.; Thevenaz, Luc; Huwald, Hendrik; Mallet, Alfred; Luxemburg, Wim; van de Giesen, Nick; Stejskal, Martin; Zeman, Josef; Westhoff, Martijn; Parlange, Marc B. (American Geophysical Union, 2006-12-06)
    Instruments for distributed fiber-optic measurement of temperature are now available with temperature resolution of 0.01°C and spatial resolution of 1 m with temporal resolution of fractions of a minute along standard fi ...
  • A distributed stream temperature model using high resolution temperature observations 
    Westhoff, M. C.; Savenije, H. H. G.; Luxemburg, W. M. J .; Stelling, G. S.; van de Giesen, N. C.; Selker, J. S.; Pfister, L.; Uhlenbrook, S. (European Geosciences Union, 2007-07-30)
    Distributed temperature data are used as input and as calibration data for an energy based temperature model of a first order stream in Luxembourg. A DTS (Distributed Temperature Sensing) system with a fiber optic cab ...
  • Drainage of a horizontal Boussinesq aquifer with a power law hydraulic conductivity profile 
    Rupp, David E.; Selker, John S. (American Geophysical Union, 2005)
    Solutions to the Boussinesq equation describing drainage into a fully penetrating channel have been used for aquifer characterization. Two analytical solutions exist for early- and late-time drainage from a saturated, ho ...
  • Editorial: Building on the legacy of Water Resources Research 
    Kumar, Praveen; Illangasekare, Tissa; Sander, Graham; Selker, John; Torgersen, Thomas (American Geophysical Union, 2009-06-11)
    None
  • The effect of pore structure of zeolite on the adsorption of VOCs and their desorption properties by microwave heating 
    Kim, Ki-Joong; Ahn, Ho-Geun (Elsevier, 2012-04-01)
    Mordenite and X- or Y-type faujasite were used to remove volatile organic compounds (VOCs) by adsorption at 25 °C. A microwave heating desorption system was applied for pollutant adsorbent regeneration. Studies were focu ...
  • Effective Darcy-scale contact angles in porous media imbibing solutions of various surface tensions 
    Weisbrod, Noam; McGinnis, Thomas; Rockhold, Mark L.; Niemet, Michael R.; Selker, John S. (American Geophysical Union, 2009-10-17)
    Surface tensions of high-salinity solutions are significantly different from those of pure water. Our objective was to develop and test a methodology to determine whether these surface tension effects predictably alter i ...
  • Effects of Natural Organic Matter Type and Concentration on the Aggregation of Citrate-Stabilized Gold Nanoparticles 
    Nason, Jeffrey A.; McDowell, Shannon A.; Callahan, Ty W. (Royal Society of Chemistry, 2012-07)
    The aggregation of 12 nm citrate-stabilized gold nanoparticles (cit-AuNPs) in the presence of four different natural organic matter (NOM) isolates and a monovalent electrolyte (KCl) was evaluated using time-resolved dy ...
  • Effects of sodium chloride on constitutive relations in variably saturated porous media.pdf 
    Burns, Erick R.; Selker, John S.; Parlange, Jean-Yves; Guenther, Ronald B. (American Geophysical Union, 2006-05-03)
    Though many arid and contaminated sites have high salinity, prediction of effects of salinity on water movement in soils has been based on dilute solution approximations. Here a sensitivity analysis compares predicted li ...
  • Enhancement of pool boiling heat transfer using nanostructured surfaces on aluminum and copper 
    Hendricks, Terry J.; Krishnan, Shankar; Choi, Changho; Chang, Chih-hung; Paul, Brian (Elsevier, 2010-07)
    Enhanced pool boiling critical heat fluxes (CHF) at reduced wall superheat on nanostructured substrates are reported. Nanostructured surfaces were realized using a low temperature process, microreactor-assisted-nanomat ...
  • Environmental temperature sensing using Raman spectra DTS fiber-optic methods 
    Tyler, Scott W.; Selker, John S.; Hausner, Mark B.; Hatch, Christine E.; Torgersen, Thomas; Thodal, Carl E.; Schladow, S. Geoffrey (American Geophysical Union, 2009-01-28)
    Raman spectra distributed temperature sensing (DTS) by fiber-optic cables has recently shown considerable promise for the measuring and monitoring of surface and near-surface hydrologic processes such as groundwater–su ...
  • An environmentally driven time-integrating water sampler 
    Selker, John S.; Rupp, David E. (American Geophysical Union, 2005)
    Quality concerns drive many water studies and practices, but obtaining samples from water bodies over time and space for quality determination is often difficult and expensive. We present a low-cost approach that allows ...
  • Evaluation of hydrodynamic scaling in porous media using finger dimensions 
    Selker, John S.; Schroth, Martin H. (American Geophysical Union, 1998-08)
    The use of dimensionless scaling is ubiquitous to hydrodynamic analysis, providing a powerful method of extending limited experimetnal results and generalizing theories. Miller and Miller [1956] contributed a scaling fra ...

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