4,241 research outputs found

    Simple circuit functions as frequency discriminator for PFM signals

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    Simple circuit monitors the frequency of PFM /Pulse Frequency Modulated/ telemetry signals. This discriminator can be used as a constant current integrator in such circuits as linear sweep and time delay

    Two autowire versions for CDC-3200 and IBM-360

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    Microelectronics program was initiated to evaluate circuitry, packaging methods, and fabrication approaches necessary to produce completely procured logic system. Two autowire programs were developed for CDC-3200 and IBM-360 computers for use in designing logic systems

    Electrooptical scanning of film

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    Scan-in scan-out flying spot scanning system recognizes three different levels of transmissivity within a frame. It selectively acts on these levels either to intensify the illumination or to extend the duration of the illuminating spot to any picture element. Thus it improves the ratio of signal to tube noise in the cameras output

    Electro-optical scanning apparatus Patent Application

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    Electro-optical system with scan-in illuminator and scan-out photosensor for scanning variable transmittance object

    Preparing students to engage with science‐ and technology‐related misinformation: The role of epistemic insight

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    Helping students to become more resilient to online misinformation is widely recognised as an essential task for education in a rapidly digitalising world. Students need both scientific knowledge and epistemic insight to navigate online spaces containing sensationalised reports of scientific and technological developments. Epistemic insight involves epistemic curiosity and the ability to think critically about the nature, application and communication of knowledge. This includes developing an understanding of the power and limitations of science and a curiosity regarding its relationship with other disciplines. We present a workshop designed for school students aged 16–18 titled ‘Can science and technology cure loneliness?’, designed to develop students' epistemic insight through investigating loneliness through a multidisciplinary perspective. We discuss how the design and pedagogy of this workshop might help students to build epistemic humility—the recognition that no single disciplinary perspective can complete our knowledge about a given topic. As part of a broader programme, epistemic insight-based pedagogies have the potential to develop students' resistance to science- and technology-related misinformation and prepare them for their potential role in shaping our scientific and technological future

    Land Classification of South-central Iowa from Computer Enhanced Images

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    The author has identified the following significant results. Two enhanced false color negatives from multispectral scanner scenes, dated 15 April 1974 and 29 August 1972, were printed at a scale of 1:125,000 to form the basis for land use interpretations in the Wapello County, Iowa test site. The use of geomorphic principles proved valuable in the interpretation of the April scene to form valuable generalizations for planning purposes on soil associations, topography, alluvial valleys, and agricultural land use. The August scene was superior in providing information on urban extent, transportation networks, forest cover, and water bodies

    Land classification of south-central Iowa from computer enhanced images

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    There are no author-identified singificant results in this report

    Land classification of south-central Iowa from computer enhanced images

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    The author has identified the following significant results. Enhanced LANDSAT imagery was most useful for land classification purposes, because these images could be photographically printed at large scales such as 1:63,360. The ability to see individual picture elements was no hindrance as long as general image patterns could be discerned. Low cost photographic processing systems for color printings have proved to be effective in the utilization of computer enhanced LANDSAT products for land classification purposes. The initial investment for this type of system was very low, ranging from 100to100 to 200 beyond a black and white photo lab. The technical expertise can be acquired from reading a color printing and processing manual
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