4,584 research outputs found
Simple circuit functions as frequency discriminator for PFM signals
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
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
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
Novel Circuit Fabrication Techniques for Reduced Environmental Impact
This paper proposes a novel technique for low cost circuit manufacture which it is hoped will offer significant reduction in environmental impact, both in terms of production process, and end of life. The technique is to use a pattern printed on paper by conventional offset lithographic techniques to form interconnection circuitry. Initial research is concentrating on the selection of appropriate conductive inks, and substrate materials. At present, components are attached using conductive adhesives, but the feasibility of placing components during the final printing pass, and using a form of conductive ink to provide the bond, is investigated
Electro-optical scanning apparatus Patent Application
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
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
The role of biology teachers in epistemically insightful health and wellbeing education: a case study of the English relationships, sex and health education curriculum
In the period following a global pandemic, the promotion of health and wellbeing is a priority area for schools. This accompanies growing calls for health and wellbeing education to be delivered through a whole-child/whole-school approach that connects across subject areas. While it may be clear to most people that a purely scientific sexuality education is undesirable, it is also clear that biology plays a vital role in developing students’ understanding about a variety of health and wellbeing topics, including those around sex, sexuality and sexual health. In this article, we explore the contribution of the biology teacher to an integrated health and wellbeing education in schools through a case study comparison of the English Relationships, Sex and Health Education curriculum and the English biology curriculum. Biology teachers in England and many other national and regional jurisdictions operate in a compartmentalised system which can create frustration and anxiety for both students and teachers when navigating the complexities of how sensitive topics are delivered in different disciplinary siloes. Epistemically insightful approaches, conceptualised at the macro-, meso- and micro-level of school organisational structures, may provide a way for biology teachers and educational leaders to address and overcome some of these challenges
Land classification of south-central Iowa from computer enhanced images
There are no author-identified singificant results in this report
Land Classification of South-central Iowa from Computer Enhanced Images
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
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 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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