Search Results - "Oswald, S. E."
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Integral quantification of seasonal soil moisture changes in farmland by cosmic-ray neutrons
Published in Hydrology and earth system sciences (01-12-2011)“…Soil moisture at the plot or hill-slope scale is an important link between local vadose zone hydrology and catchment hydrology. However, so far only a few…”
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A field investigation on transport of carbon-supported nanoscale zero-valent iron (nZVI) in groundwater
Published in Journal of contaminant hydrology (01-10-2015)“…The application of nanoscale zero-valent iron (nZVI) for subsurface remediation of groundwater contaminants is a promising new technology, which can be…”
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3
Three-dimensional physical benchmark experiments to test variable-density flow models
Published in Journal of hydrology (Amsterdam) (10-05-2004)“…Flow and transport in saturated porous media may be influenced, or even dominated, by phenomena of variable-density flow, if solute concentration gradients are…”
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4
Sand box experiments to evaluate the influence of subsurface temperature probe design on temperature based water flux calculation
Published in Hydrology and earth system sciences (01-01-2011)“…Quantification of subsurface water fluxes based on the one dimensional solution to the heat transport equation depends on the accuracy of measured subsurface…”
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5
Inverse modelling of cosmic-ray soil moisture for field-scale soil hydraulic parameters
Published in European journal of soil science (01-11-2014)“…Summary We used inverse modelling techniques and soil moisture measured by the cosmic‐ray neutron sensing (CRS) to estimate root‐zone soil hydraulic properties…”
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The role of cell seeding density and nutrient supply for articular cartilage tissue engineering with deformational loading
Published in Osteoarthritis and cartilage (01-12-2003)“…Objective: Functional tissue engineering (FTE) of articular cartilage involves the use of physiologically relevant mechanical signals to encourage the growth…”
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7
Analysis of nickel concentration profiles around the roots of the hyperaccumulator plant Berkheya coddii using MRI and numerical simulations
Published in Plant and soil (01-03-2010)“…Investigations of soil-root interactions are hampered by the difficult experimental accessibility of the rhizosphere. Here we show the potential of Magnetic…”
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Neutrons on Rails: Transregional Monitoring of Soil Moisture and Snow Water Equivalent
Published in Geophysical research letters (28-12-2021)“…Large‐scale measurements of the spatial distribution of water content in soils and snow are challenging for state‐of‐the‐art hydrogeophysical methods…”
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Sensing Area‐Average Snow Water Equivalent with Cosmic‐Ray Neutrons: The Influence of Fractional Snow Cover
Published in Water resources research (01-12-2019)“…Cosmic‐ray neutron sensing (CRNS) is a promising non‐invasive technique to estimate snow water equivalent (SWE) over large areas. In contrast to preliminary…”
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Verification and intercomparison of reactive transport codes to describe root-uptake
Published in Plant and soil (01-07-2006)“…Several mathematical models have been developed to simulate processes and interactions in the plant rhizosphere. Most of these models are based on a rather…”
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Visualization of root growth in heterogeneously contaminated soil using neutron radiography
Published in European journal of soil science (01-06-2007)“…We used neutron radiography (NR), a non-invasive and in situ technique, to study living plant roots in soil. Plant roots have a larger water content than their…”
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12
Cosmic‐ray Neutron Rover Surveys of Field Soil Moisture and the Influence of Roads
Published in Water resources research (01-09-2018)“…Measurements of root‐zone soil moisture across spatial scales of tens to thousands of meters have been a challenge for many decades. The mobile application of…”
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13
An Alternative Incoming Correction for Cosmic‐Ray Neutron Sensing Observations Using Local Muon Measurement
Published in Geophysical research letters (28-03-2022)“…Measuring the variability of incoming neutrons locally would be usefull for the cosmic‐ray neutron sensing (CRNS) method. As the measurement of high energy…”
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14
A scaling approach for the assessment of biomass changes and rainfall interception using cosmic-ray neutron sensing
Published in Journal of hydrology (Amsterdam) (01-06-2015)“…•We compared seasonal soil moisture values measured at different spatial scales.•A linear soil moisture scaling approach gave consistent results in three crop…”
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15
Combination of Magnetic Resonance Imaging and Neutron Computed Tomography for Three‐Dimensional Rhizosphere Imaging
Published in Vadose zone journal (2019)“…Core Ideas 3D MRI relaxation time maps reflect water mobility in root, rhizosphere, and soil. 3D NCT water content maps of the same plant complement relaxation…”
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Verification and intercomparison of reactive transport codes to describe root-uptake
Published in Plant and soil (01-12-2007)Get full text
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17
Magnetic resonance imaging methods to reveal the real-time distribution of nickel in porous media
Published in European journal of soil science (01-06-2008)“…Direct and non-destructive measurement of the sorption, diffusion and mobility of ions and molecules in porous media has applications in industry and…”
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18
Uncertainty, sensitivity and improvements in soil moisture estimation with cosmic-ray neutron sensing
Published in Journal of hydrology (Amsterdam) (01-09-2018)“…•CRNS soil moisture compares well to total-weighted point soil moisture.•The uncertainty increases for non-weighted volumetric soil moisture estimation.•CRNS…”
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Spatio-temporal patterns of rhizosphere CO2 concentration are linked to root type and soil moisture dynamics in white lupine
Published in Rhizosphere (01-03-2024)“…Respiration by plant roots can seasonally account for the majority of soil CO2 production. At the plant scale level, the spatial distribution of soil CO2…”
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Technical Note: Revisiting the general calibration of cosmic-ray neutron sensors to estimate soil water content
Published in Hydrology and earth system sciences (28-02-2024)“…Cosmic-ray neutron sensing (CRNS) is becoming increasingly popular for monitoring soil water content (SWC). To retrieve SWC from observed neutron intensities,…”
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