Search
Now showing items 471-480 of 582
Smokeless GAP-RDX Composite Rocket Propellants Containing Diaminodinitroethylene (FOX-7)
(2017)
Composite rocket propellants prepared from nitramine fillers (RDX or HMX), glycidyl azide polymer (GAP) binder and energetic plasticizers are potential substitutes for smokeless double-base propellants in some rocket motors. ...
Robust eye-safe pulsed fiber laser source for 3D ladar applications
(2017)
We present a pulsed all-fiber Er/Yb-doped master oscillator power amplifier at 1.55 μm wavelength. In a simple two-stage amplifier design, the source delivers 140 μJ pulses at 25 kHz and 50 kHz pulse repetition frequency, ...
Combination of stereo SAR and InSAR for DEM generation using TanDEM-X spotlight data
(2017)
The objective of this work is to generate accurate digital elevation models (DEMs) from synthetic aperture radar (SAR) interferograms using the spotlight and staring spotlight modes during the TanDEM-X (TDX) science phase. ...
Predicting Near-Time Satellite Signal Attenuation at Ka-band Using Tropospheric Weather.
(2018-12-10)
There are satellite communication applications where it is desirable to predict near time (e.g. 2 to 12 h) propagation losses at Ka-band due to hydrometeor precipitation. We present results from a project investigating the ...
Strain rate dependency and fragmentation pattern of expanding warheads
(2014-12-22)
For the characterization of the behaviors of a metal material in events like expanding warheads, it is necessary to know its strength and
ductility at high strain rates, around 104
e105
/s. The flyer plate impact testing ...
Guidelines for using animal models in blast injury research
(2018)
Blast injury is a very complex phenomenon and frequently results in multiple injuries. One method to investigate the consequences of blast injuries is with the use of living systems (animal models). The use of animals ...
Full characterization of spatial coregistration errors and spatial resolution in spectral imagers
(2018)
For multi- and hyperspectral imagers, the integrity of the spectral information depends critically on the spatial coregistration between bands. There is at present no commonly accepted way to fully specify coregistration ...
Perspectives on resilience for military readiness and preparedness: Report of an international military physiology roundtable
(2018)
Modern warfare operations often occur in volatile, uncertain, complex, and ambiguous (VUCA) environments accompanied by physical exertion, cognitive overload, sleep restriction and caloric deprivation. The increasingly ...