461 research outputs found

    Precision tunable resonant microwave cavity

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    A tunable microwave cavity containing ionizable metallic vapor or gases and an apparatus for precisely positioning a microwave coupling tip in the cavity and for precisely adjusting at least one dimension of the cavity are disclosed. With this combined structure, resonance may be achieved with various types of ionizable gases. A coaxial probe extends into a microwave cavity through a tube. One end of the tube is retained in a spherical joint attached in the cavity wall. This allows the coaxial probe to be pivotally rotated. The coaxial probe is slideable within the tube thus allowing the probe to be extended toward or retracted from the center of the cavity

    The loss ratio as a factor in the present financial support and future development of classes for exceptional children in the central and central coast counties of the state of California

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    During the last decade the responsibility for the education of exceptional children has very rapidly become a function of the public schools. With the inflationary spiral that the economy of the nation has faced during this same period it has become increasingly more difficult for school districts to assume the financial burden that these classes place upon them

    Inmarsat's role in responsible fishing

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    The paper documents the application of the services of International Maritime Satellite Organization (Inmarsat) to responsible fisheries. Currently known as International Mobile Satellite Organization, offers an increasing array of telecommunication services to business travelers, landmobile, aeronautical, and maritime users, etc. For the maritime industry Inmarsat provides satellite vessel monitoring. The position reports, which optionally may include course and speed, from one or more fishing vessels may be incorporated into a system comprised of hardware and software at a shore-side control station

    Dietary studies in the public institutions of Illinois: (studies in the hospitals for the insane)

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    Thesis (MS)--University of Illinois, 1911TypescriptIncludes bibliographical reference

    Data-Driven Reachability Analysis of Pedestrians Using Behavior Modes

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    In this paper, we present a data-driven approach for safely predicting the future state sets of pedestrians. Previous approaches to predicting the future state sets of pedestrians either do not provide safety guarantees or are overly conservative. Moreover, an additional challenge is the selection or identification of a model that sufficiently captures the motion of pedestrians. To address these issues, this paper introduces the idea of splitting previously collected, historical pedestrian trajectories into different behavior modes for performing data-driven reachability analysis. Through this proposed approach, we are able to use data-driven reachability analysis to capture the future state sets of pedestrians, while being less conservative and still maintaining safety guarantees. Furthermore, this approach is modular and can support different approaches for behavior splitting. To illustrate the efficacy of the approach, we implement our method with a basic behavior-splitting module and evaluate the implementation on an open-source data set of real pedestrian trajectories. In this evaluation, we find that the modal reachable sets are less conservative and more descriptive of the future state sets of the pedestrian
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