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Seismic Hazard and Risk Assessment for Tulbagh, South Africa: Part I – Assessment of Seismic Hazard
In this part of our study the probabilistic seismic hazard analysis (PSHA) for Tulbagh was performed. The applied procedure is parametric and consists essentially of two steps. The first step isExpand
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Site-specific Seismic Hazard Estimation in the Main Seismogenic Zones of North Algeria
Abstract — The procedure developed by Kijko and Sellevoll (1989, 1992) and Kijko and Graham (1998, 1999) is used to estimate seismic hazard parameters in north Algeria. The area-specific seismicExpand
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Seismic Hazard and Risk Assessment for Tulbagh, South Africa: Part II – Assessment of Seismic Risk
This is the second part of our study on the assessment of seismic hazard and seismic risk for Tulbagh, the settlement, located about 90 km N-E from Cape Town, where the strongest and most damagingExpand
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Aircraft plume infrared radiance inversion and subsequent simulation model
  • S. J. P. Retief
  • Engineering, Physics
  • Optics/Photonics in Security and Defence
  • 8 November 2012
A radiance inversion technique, in which in-flight aircraft plume radiance recordings are exploited to construct a three dimensional (3D) radiance model of the plume, is presented. The recordingsExpand
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Prediction of thermal crossover based on imaging measurements over the diurnal cycle
Thermal crossover is the phenomenon where the infrared signatures of two different objects in a scene are indistinguishable. A prediction method was developed where a series of infrared images isExpand
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Measurements of a micro gas turbine plume and data reduction for the purpose of infrared signature modeling
An important issue concerning numerical simulation of gas turbine-propelled aircraft in infrared scenarios (usually in military applications) is the radiometric emission properties of the aircraft exhaust plume. Expand
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Infrared recordings for characterizing an aircraft plume
Some key electro-optical measurements required to characterize an aircraft plume for automated recognition are shown, as well as some aspects of the processing and use of these measurements. PlumeExpand
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Infrared Characterization of a Micro Turbine Engine Plume
 Very important issues concerning numerical simulation of infrared scenarios in military applications are the radiometric emission properties of aircraft plumes as well as the engine tail pipes. InExpand
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A technique for resolving the spectral response of a wide-band infrared measuring instrument from measurements without the need for a spectrally tuneable radiation source
Abstract A technique is presented in which the spectral response of a wide-band infrared measuring instrument is obtained by means of calibration type measurements of a blackbody at variousExpand
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