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Now showing items 101-110 of 124
The Optimum Dispersion of Carbon Nanotubes for Epoxy Nanocomposites: Evolution of the Particle Size Distribution by Ultrasonic Treatment
(2012)
The ultrasonic dispersion of multiwalled carbon nanotube (MWCNT) suspensions was assessed by studying the differential sedimentation of the particles in an acid anhydride often employed as a curing agent for epoxy resins. ...
On the Kinetics of Anaerobic Power
(2012)
Background
This study investigated two different mathematical models for the kinetics of anaerobic power. Model 1 assumes that the work power is linear with the work rate, while Model 2 assumes a linear relationship ...
Stochastic Analysis of England Grain Prices 1750-1850
(2012)
We study the prices of grain in England 1750-1850, with special attention to the Tamboro
volcano eruption time period 1815-1820. Two different types of time series are constructed and
compared with the historical data. ...
An upper-bound metric for characterizing spectral and spatial coregistration errors in spectral imaging
(2012)
Coregistration errors in multi- and hyperspectral imaging sensors arise when the spatial sensitivity pattern differs between bands or when the spectral response varies across the field of view, potentially leading to large ...
Demonstration of Comparison Methods for Ocean Model Validation
(2012)
In recent years an increasing amount of oceanographic data has become available. This includes
observations as well as data from hydrodynamic ocean models. Validation is required for establishing the necessary
confidence ...
Performance of a Multiband Passive Bistatic Radar Processing Scheme - Part II
(2012)
Simulations based on real-life FM radio waveforms showed that the algorithm is capable of improving range resolution, and thus the accuracy, according to theory for single scatterers as is summarized. The performance of ...
Inverse scattering of dispersive stratified structures
(2012)
We consider the inverse-scattering problem of retrieving the structural parameters of a stratified medium consisting of dispersive materials, given knowledge of the complex reflection coefficient in a finite frequency ...
Electron loss and meteoric dust in the mesosphere
(2012)
The ionosphere is always assumed to contain equal numbers of positive and negative charges in a given volume (quasineutrality). Hence fewer electrons than positive charges are an indication of negative charges other than ...
On the Big Bang Cosmology as a Kinematic Event in Newtonian Cosmology Modified by Dark Energy
(2012)
The concepts dark matter and dark energy are commonly used to explain the universe.
The dark energy can be conceived as a property of vacuum or the ether. However, a
quite different but also common approach is to modify ...
Standoff detection of biological agents using laser induced fluorescence - a comparison of 294 nm and 355 nm excitation wavelengths
(2012)
Standoff detection measuring the fluorescence spectra of seven different biological agents excited by 294 nm as well as 355 nm wavelength laser pulses has been undertaken. The biological warfare agent simulants were released ...