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This paper investigates a fault tolerant “3-D Heterogeneous Sensor System on a Chip (HSoC)” for meeting the challenges of distributed power grid monitoring, fault detection, and control. In the past, the management of the power system, including detection of power grid faults, their location, and load-sharing has been carried out largely by remote central stations, which has often incurred delays...
Previously we have shown that image sensors are continuously subject to the development of in-field permanent defects in the form of hot pixels. Based on laboratory measurements of defect rates in 21 DSLRs and 10 cell phone cameras, we show in this paper that the rate of these defects depends on the technology (APS or CCD) and on design parameters the like of imager area, pixel size, and gain (ISO)...
Angular Domain Imaging (ADI) is a technique that selects quasi-ballistic photons exiting from a highly scattering medium by an array of silicon micromachined micro-tunnels. Each channel has a limited acceptance angle based on its geometry therefore those photons that traverse within the acceptance angle of the micro-tunnels will be detected by the imager. In this paper, the ADI technique has been...
While Coherence or Time Domain Optical tomography within highly scattering media observes the shortest path photons over the dominant randomly scattered background light, Backscattering Angular Domain Imaging employs micromachined collimators to detect photons within small angles of laser light reflected from the high scattering medium. These angular filters are composed of micromachined semicircular...
This paper summarises the inherent advantages and difficulties of the various power transmission techniques being developed to meet future demand. It is concluded that the use of EHV dc will continue to expand, that gas dielectric cables will soon supersede HPOF cables and that in the future superconducting cables will be used for multi-GVA links.
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