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Browsing Duke Faculty Scholarship by Subject "radiation"

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Energy, water, and carbon fluxes in a loblolly pine stand: Results from uniform and gappy canopy models with comparisons to eddy flux data

Katul, Gaby; Oren, Ram; Stoy, Paul C. (AMER GEOPHYSICAL UNION, 2009)

This study investigates the impacts of canopy structure specification on modeling net radiation (R-n), latent heat flux (LE) and net photosynthesis (A(n)) by coupling two contrasting radiation transfer models with a two-leaf ...
Lightning mapping observation of a terrestrial gamma-ray flash

Lu, Gaopeng; Li, Jingbo; Cummer, Steven (AMER GEOPHYSICAL UNION, 2010)

We report the observation with the North Alabama Lightning Mapping Array (LMA) related to a terrestrial gamma-ray flash (TGF) detected by RHESSI on 26 July 2008. The LMA data explicitly show the TGF was produced during the ...
Midlatitude nighttime D region ionosphere variability on hourly to monthly time scales

Han, Feng; Cummer, Steven (AMER GEOPHYSICAL UNION, 2010)

Significant temporal variability of the nighttime D region is well known, but its inaccessibility means that the time scales, magnitudes, and sources for that variability are not well understood. We probed the ionospheric ...
A spectral element method calculation of extraordinary light transmission through periodic subwavelength slits

Luo, Ma; Liu, Qing (OPTICAL SOC AMER, 2010)

A spectral element method together with a surface integral equation as the radiation boundary condition is used to simulate the scattering properties of periodic subwavelength slits. The surface integral equation utilizes ...
Surface plasmon resonance in nanostructured metal films under the Kretschmann configuration

Liu, Qing (AMER INST PHYSICS, 2009)

We systematically investigated the surface plasmon resonance in one-dimensional (1D) subwavelength nanostructured metal films under the Kretschmann configuration. We calculated the reflectance, transmittance, and absorption ...
Theoretical Framework for Nanoparticle Reactivity as a Function of Aggregation State

Hotze, Ernest M.; Wiesner, Mark (AMER CHEMICAL SOC, 2010)

Theory is developed that relates the reactivity of nanoparticles to the structure of aggregates they may form in suspensions. This theory is applied to consider the case of reactive oxygen species (ROS) generation by ...