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Security and Defense

101 - 110 of 117 Results
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The Functional Randomness in Security Tokens method and system improves the security of two-factor authentication hardware tokens by improving on the algorithms used to securely generate random data.

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The subject invention is an advanced chlorophyll pulse amplitude modulation fluorometer for environmental monitoring. Detection is achieved by algal biosensors that grow naturally in source drinking waters. The principle of detection is chlorophyll fluorescence measurement.

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This disclosure describes a potential improvement the neutron/gamma inspection systems being developed for inspection of air cargo containers. These current systems use neutrons and gammas together to help isolate materials such as explosives within a container.

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Cermet formulations are provided for integrated waste forms that comprise a composite of tailored ceramic phases encapsulated in a special metal matrix.  The ceramic phases immobilize certain radioisotopes in a stable, low-leachability chemical form.  The metal

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The Shifting Scintillator Neutron Detector is used to detect thermal neutrons while rejecting gamma radiation events. The current detector has a resolution that can be altered to meet the requirements of the application.