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  1. Article ; Online: Closing the Water Balance with a Precision Small-Scale Field Lysimeter.

    Lyles, Brad F / Sion, Brad D / Page, David / Crews, Jackson B / McDonald, Eric V / Hausner, Mark B

    Sensors (Basel, Switzerland)

    2024  Volume 24, Issue 7

    Abstract: We developed a set of two precision, small-scale, water balance lysimeters to provide accurate measurements of bare soil evaporation. Each lysimeter comprises a soil tank, a balance assembly with load cell, a wicking drainage system, and a stilling well ... ...

    Abstract We developed a set of two precision, small-scale, water balance lysimeters to provide accurate measurements of bare soil evaporation. Each lysimeter comprises a soil tank, a balance assembly with load cell, a wicking drainage system, and a stilling well to measure drained water. Fiberglass wicks installed at the bottom of the soil tanks provide -60 cm of tension to the base of the soil column, and soil water drainage is quantified to close the water balance within the lysimeter. The calibrated lysimeters return mass changes with uncertainties ranging from 3 to 8 g, corresponding to uncertainties of 0.02-0.05 mm of water. Installed at a semi-arid site in northern Nevada, the two lysimeters are filled with uniform construction sand and silt loam. Over a six-month pilot observation period, bare soil evaporation rates of 0.19 and 0.40 mm/day were measured for the construction sand and silt loam, respectively, which is consistent with meteorological data and models of potential evapotranspiration at the site. The design of the lysimeter can be adapted to specific research goals or site restrictions, and these instruments can contribute significantly to our ability to close the soil water balance.
    Language English
    Publishing date 2024-03-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s24072039
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Transient pore pressure response to confining stress excursions in Berea sandstone flooded with an aqueous solution of CO2

    Crews, Jackson B. / Cooper, Clay A.

    Water resources research

    2014  Volume 50, Issue 6, Page(s) 4775

    Language English
    Document type Article
    ZDB-ID 5564-5
    ISSN 0043-1397
    DOI 10.1002/2014WR015305
    Database Current Contents Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Z 4285: Show issues

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  3. Article: Selective, controllable, and reversible aggregation of polystyrene latex microspheres via DNA hybridization.

    Rogers, Phillip H / Michel, Eric / Bauer, Carl A / Vanderet, Stephen / Hansen, Daniel / Roberts, Bradley K / Calvez, Antoine / Crews, Jackson B / Lau, Kwok O / Wood, Alistair / Pine, David J / Schwartz, Peter V

    Langmuir : the ACS journal of surfaces and colloids

    2005  Volume 21, Issue 12, Page(s) 5562–5569

    Abstract: The directed three-dimensional self-assembly of microstructures and nanostructures through the selective hybridization of DNA is the focus of great interest toward the fabrication of new materials. Single-stranded DNA is covalently attached to ... ...

    Abstract The directed three-dimensional self-assembly of microstructures and nanostructures through the selective hybridization of DNA is the focus of great interest toward the fabrication of new materials. Single-stranded DNA is covalently attached to polystyrene latex microspheres. Single-stranded DNA can function as a sequence-selective Velcro by only bonding to another strand of DNA that has a complementary sequence. The attachment of the DNA increases the charge stabilization of the microspheres and allows controllable aggregation of microspheres by hybridization of complementary DNA sequences. In a mixture of microspheres derivatized with different sequences of DNA, microspheres with complementary DNA form aggregates, while microspheres with noncomplementary sequences remain suspended. The process is reversible by heating, with a characteristic "aggregate dissociation temperature" that is predictably dependent on salt concentration, and the evolution of aggregate dissociation with temperature is observed with optical microscopy.
    MeSH term(s) Base Sequence ; DNA/chemistry ; Latex/chemistry ; Latex/metabolism ; Microspheres ; Models, Chemical ; Molecular Sequence Data ; Molecular Structure ; Nucleic Acid Hybridization ; Polystyrenes/chemistry ; Polystyrenes/metabolism ; Surface Properties
    Chemical Substances Latex ; Polystyrenes ; DNA (9007-49-2)
    Language English
    Publishing date 2005-06-07
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2005937-1
    ISSN 1520-5827 ; 0743-7463
    ISSN (online) 1520-5827
    ISSN 0743-7463
    DOI 10.1021/la046790y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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