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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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  • 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 ...
  • 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 ...
  • 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 ...
  • Vercauteren, Nikki; Huwald, Hendrik; Bou-Zeid, Elie; Selker, John S.; Lemmin, Ulrich; Parlange, Marc B.; Lunati, Ivan (American Geophysical Union, 2011-09-27)
    In lentic water bodies, such as lakes, the water temperature near the surface typically increases during the day, and decreases during the night as a consequence of the diurnal radiative forcing (solar and infrared radia ...
  • Selker, J. S.; Fry, V. A.; Gorelick, S. M. (American Geophysical Union, 1997-12)
    Oxygen is often the rate-limiting factor in aerobic in situ bioremediation. This paper investigates the degree to which air or oxygen gas can be emplaced into the pore space of saturated porous media and provide a signif ...
  • Nason, Jeffrey A.; Bloomquist, Don J.; Sprick, Matthew S. (American Society of Civil Engineers, 2012-07)
    Highway stormwater runoff represents a significant source of dissolved copper to surface waters. It is well established that even low concentrations of dissolved copper can be toxic to many aquatic organisms. In the Pa ...
  • Steele‐Dunne, S. C.; Rutten, M. M.; Krzeminska, D. M.; Hausner, M.; Tyler, S. W.; Selker, J.; Bogaard, T. A.; van de Giesen, N. C. (American Geophysical Union, 2010-06-05)
    Through its role in the energy and water balances at the land surface, soil moisture is a key state variable in surface hydrology and land-atmosphere interactions. Point observations of soil moisture are easy to make usi ...
  • Sayde, Chadi; Gregory, Christopher; Gil‐Rodriguez, Maria; Tufillaro, Nick; Tyler, Scott; van de Giesen, Nick; English, Marshal; Cuenca, Richard; Selker, John S. (American Geophysical Union, 2010-06-05)
    Accurate methods are needed to measure changing soil water content from meter to kilometer scales. Laboratory results demonstrate the feasibility of the heat pulse method implemented with fiber optic temperature sensing ...
  • Selker, John; van de Giesen, Nick; Westhoff, Martijn; Luxemburg, Wim; Parlange, Marc B. (American Geophysical Union, 2006-12-19)
    A new approach to monitoring surface waters using distributed fiber optic temperature sensing is presented, allowing resolutions of temperature of 0.01°C every meter along a fiber optic cable of up to 10,000 m in length. ...
  • Louie, Michael J.; Shelby, Patrick M.; Smesrud, Jason S.; Gatchell, Lance O.; Selker, John S. (American Geophysical Union, 2000-09)
    Passive capillary samplers (PCAPS), which sample water from the vadose zone via a hanging water column in a fiberglass wick, have shown potential to provide superior estimates of soil water flux compared to alternative m ...
  • Selker, J.; Leclerq, P.; Parlange, J.-Y.; Steenhuis, T. (American Geophysical Union, 1992-09)
    Precise management of the changing matric potential during infiltration into unsaturated soil required the development of miniature, high-speed, planar tensiometers. A novel design was developed, with response time of le ...
  • Selker, J.; Parlange, J.-Y.; Steenhuis, T. (A merican Geophysical Union, 1992-09)
    An exact integral solution for the moisture profile in growing fingers in sandy soil is derived from Richards' equation. The solution provides moisture content along a finger as a function of position and time and provid ...
  • Jansik, D. P.; Wildenschild, D.; Rosenberg, N. D. (Soil Science Society of America, 2011-08-31)
    Engineered capillary barriers typically consist of two layers of granular materials designed so that the contrast in material hydraulic properties and sloping interface retain infiltrating water in the upper layer. We co ...
  • Rajachidambaram, Meena S.; Varga, Tamas; Kovarik, Libor; Sanghavi, Rahul; Shutthanandan, Vaithiyalingam; Thevuthasan, Suntharampillai; Han, Seung-Yeol; Chang, Chih-Hung; Herman, Gregory S. (AVS: Science & Technology of Materials, Interfaces, and Processing, 2012-07)
    The thermal oxidation of submicron metallic Zn particles was studied as a method to form nanostructured ZnO films. The particles used for this work were characterized by electron microscopy, x ray diffraction, and therma ...
  • Boll, Jan; Selker, John S.; Shalit, Gil; Steenhuis, Tammo S. (American Geophysical Union, 1997-12)
    Modeling of water and solute movement requires knowledge of the nature of the spatial distribution of transport parameters. Only a few of the field experiments reported in the literature contained enough measurements to ...
  • Walter, M. T.; Kim, J.-S.; Steenhuis, T. S.; Parlange, J.-Y.; Heilig, A.; Braddock, R. D.; Selker, J. S.; Boll, J. (American Geophysical Union, 2000-04)
    Artificial capillary barriers are being used to divert water away from sensitive underground regions. Conversely, funneled flow over natural capillary barriers may increase the danger of groundwater contamination by decr ...
  • Ferre, Ty P. A.; Selker, John S. (American Geophysical Union, 2007-12-21)
    A new apparatus is presented that is capable of applying a constant fluid pressure at inflow and outflow boundaries. The apparatus can be refilled during operation and does not rely on an overflow mechanism. The device i ...
  • Selker, John S.; Duan, Jinfan; Parlange, Jean-Yves (American Geophysical Union, 1999-05)
    Most expressions for infiltration rely upon the assumption of vertical uniformity in soil texture and hydraulic properties. We present an extension of the results of Beven [1982, 1984] for infiltration and lateral flow i ...
  • Vas-Umnuay, Paravee; Chang, Chih-hung (The Electrochemical Society, 2013-01-28)
    Copper sulfides (CuxS) are compound semiconductor materials that exhibit considerable variations of optical and electrical properties. Copper sulfide thin films can be used in many applications, such as solar control coa ...
  • Kim, Ki-Joong; Li, Yong Jun; Kreider, Peter B.; Chang, Chih-Hung; Wannenmacher, Nick; Thallapally, Praveen K.; Ahn, Ho-Geun (Royal Society of Chemistry, 2013-12-21)
    The reaction conditions for the synthesis of Cu-BTC (BTC = benzene-1,3,5-tricarboxylic acid) were elucidated using a continuous-flow microreactor-assisted solvothermal system to achieve crystal size and phase control. A ...

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