Now showing items 1-10 of 674
Controlling Electromagnetic Surface Waves with Scalar and Tensor Impedance Surfaces.
(2013)
The propagation characteristics of electromagnetic waves on various isotropic (scalar) impedance surfaces have been studied for some time, in order to control surface waves and leaky-wave radiation. One and two dimensional ...
Development of a Time-Resolved Laser-Induced Fluorescence Technique for Nonperiodic Oscillations
(2016)
Time-resolved measurements of ion dynamics could be key to understanding the physics of instabilities, electron transport, and erosion in Hall thrusters. Traditional measurements of the ion velocity distribution in Hall ...
Demographic Stochasticity in Evolutionary Biology.
(2013)
Demographic stochasticity, the random fluctuations arising from the intrinsic discreteness of populations and the uncertainty of individual birth and death events, is an essential feature of population dynamics. Nevertheless ...
Spatio-temporal Spectra and Spectral Transfers in Fluid Dynamics.
(2015)
Motivated in part by interest in low-frequency variability in complicated flows such as the ocean or atmosphere but also by a general interest in the spatio-temporal structure of turbulent flows, we investigate two-dimensional ...
MESSENGER Investigations of the Plasma Environment at Mercury.
(2013)
We report on the first observations of plasma ions at Mercury, from the Fast Imaging Plasma Spectrometer (FIPS). These observations were made by the MESSENGER spacecraft during two flybys of Mercury and while in orbit ...
Quantum Corrections to Gravity: Polishing the Window into the Black Hole Microstates.
(2016)
A thorough understanding of quantum gravity is one of the greatest challenges of modern theoretical physics, given the incompatibility of general relativity and quantum mechanics. In order to address this challenge many ...
Energy Transport in Organic Photovoltaics.
(2015)
Organic photovoltaics (OPV) have the potential to be a flexible and low-cost form of carbon-neutral energy production. However, many of the underlying physical mechanisms that dictate the behavior of OPVs remain frustratingly ...
Changing the DNA Sequence Alters the Kinetics of Protein-Mediated DNA Looping.
(2013)
DNA is more than just a blueprint – it is a dynamic molecule with physical and mechanical properties that are significant for its biological functions. At any given time, various enzymes bind to and release from a multitude ...
A Measurement of the Leptonic Asymmetry in Top-Quark Pairs Produced in pp Collisions at s = 1:96TeV.
(2014)
The asymmetry in the charge-weighted lepton rapidity is measured in semileptonic top-quark-pair decays. The measurement is performed in data recorded with the CDF-II detector using the full Tevatron Run II sample, ...
Spin-Photon Entanglement and Quantum Optics with Single Quantum Dots.
(2013)
InAs quantum dots (QDs) can be used as optically coupled quantum storage devices for quantum information applications. The QD can be charged with a single electron, where the spin state (up or down) provides a long lived ...