Abstract:
A scanning imaging apparatus including a rotatable support platform, an imaging device that is attached to the support platform; a mirror that is rotatably attached to the support platform and is configured to deflect an optical path of the imaging device; a first motor configured to continuously rotate the rotatable support platform at a first angular velocity; a second motor configured to change an angle of the mirror relative to an optical axis of the imaging device at a second relative angular velocity relative to the optical axis; and a controller configured to control the angle of the mirror so that a waveform of the angle of the mirror as a function of time does not have high frequency components.
Abstract:
In general, the present disclosure relates to persistent surveillance (PS), wide medium and small in area, and large volume data streaming (LVSD), e.g., from orbiting aircraft or spacecraft, and PS/LVSD specific data compression. In certain aspects, the PS specific data or LVSD compression and image alignment may utilize registration of images via accurate knowledge of camera position, pointing, calibration, and a 3D model of the surveillance area. Photogrammetric systems and methods to compress PS specific data or LVSD while minimizing loss are provided. In certain embodiments, to achieve data compression while minimizing loss, a depth model is generated, and imagery is registered to the depth model.
Abstract:
Bio-electro reactors with real-time adjustable electric parameters and sequencing programmable power supplies are disclosed. According to an aspect, a bio-electro reactor for control of electrolysis gases bubbles within a biologically-active substance includes a vessel defining an interior for holding a biologically-active substance. The bio-electro reactor also includes electrodes positioned to be electrically coupled with at least a portion of the biologically-active substance. Further, the bio-electro reactor includes an electric source configured to apply voltage across the electrodes. The bio-electro reactor also includes an electrical controller configured to determine an electrical impedance at one or more of the electrodes for use in controlling electrolysis gases bubbles within the biologically active substance.
Abstract:
Various embodiments of a nuclear fuel for use in various types of nuclear reactors and/or waste disposal systems are disclosed. One exemplary embodiment of a nuclear fuel may include a fuel element having a plurality of tristructural-isotropic fuel particles embedded in a silicon carbide matrix. An exemplary method of manufacturing a nuclear fuel is also disclosed. The method may include providing a plurality of tristructural-isotropic fuel particles, mixing the plurality of tristructural- isotropic fuel particles with silicon carbide powder to form a precursor mixture, and compacting the precursor mixture at a predetermined pressure and temperature.
Abstract:
Various embodiments of a nuclear fuel for use in various types of nuclear reactors and/or waste disposal systems are disclosed. One exemplary embodiment of a nuclear fuel may include a fuel element having a plurality of tristructural-isotropic fuel particles embedded in a silicon carbide matrix. An exemplary method of manufacturing a nuclear fuel is also disclosed. The method may include providing a plurality of tristructural-isotropic fuel particles, mixing the plurality of tristructural- isotropic fuel particles with silicon carbide powder to form a precursor mixture, and compacting the precursor mixture at a predetermined pressure and temperature.
Abstract:
An aimpoint correction approach that projects two coherent light beams at predetermined angles offset from the target and detects the returning scattered light in order to determine the aimpoint correction for a range-dependent cross-range wind.
Abstract:
Systems and methods for displaying distant images at mobile computing devices are disclosed herein. According to an aspect, a method includes determining a geographic location of a mobile computing device. The method includes determining an orientation of the mobile computing device. Further, the method includes using a user interface of the mobile computing device to receive input of a viewing distance between the geographic location of the mobile computing device and another geographic location. The method also includes communicating to a remote computing device, the geographic location of the mobile computing device, the orientation of the mobile computing device, and the viewing distance. The method also includes receiving from the remote computing device, one or more images associated with the geographic location, the orientation, and the viewing distance. Further, the method includes using a display of the mobile computing device to display the images.
Abstract:
An exhaust gas water extraction system includes an evaporator component in a diffusion absorption refrigeration ('DAR") unit. The system also includes an exhaust gas input duct comprising an input opening to receive exhaust gas from an exhaust gas source. The exhaust gas input duct operates as a heat source to power the DAR. An evaporator heat exchanger is connected to receive the exhaust gas from the exhaust gas input duct. The evaporator heat exchanger is disposed to generate a heat exchange between the evaporator component and the exhaust gas that cools the exhaust gas to below the dew point. A water collection container receives water condensing from the exhaust gas during the heat exchange with the evaporator component.
Abstract:
An image projection method for generating a panoramic image, the method including the steps of accessing images that were captured by a camera located at a source location, and each of the images being captured from a different angle of view, the source location being variable as a function of time, calibrating the images collectively to create a camera model that encodes orientation, optical distortion, and variable defects of the camera; matching overlapping areas of the images to generate calibrated image data, accessing a three-dimensional map, first projecting pixel coordinates of the calibrated image data into a three-dimensional space using the three-dimensional map to generate three-dimensional pixel data, and second projecting the three-dimensional pixel data to an azimuth-elevation coordinate system that is referenced from a fixed virtual to generate the panoramic image.
Abstract:
In general, the present disclosure relates to persistent surveillance (PS), wide medium and small in area, and large volume data streaming (LVSD), e.g., from orbiting aircraft or spacecraft, and PS/LVSD specific data compression. In certain aspects, the PS specific data or LVSD compression and image alignment may utilize registration of images via accurate knowledge of camera position, pointing, calibration, and a 3D model of the surveillance area. Photogrammetric systems and methods to compress PS specific data or LVSD while minimizing loss are provided. In certain embodiments, to achieve data compression while minimizing loss, a depth model is generated, and imagery is registered to the depth model.