11,689 research outputs found

    You must all be Interned : Identity Among Internees in Great Britain during World War II

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    Between 1933 and 1940, the United States, Great Britain and most other developed nations saw an influx of German refugees entering their borders attempting to be free of the tyranny of Hitler’s National Socialism. Many of those fleeing from Germany were intellectuals: authors, teachers, artists, or thinkers who faced persecution in their homeland. For the men, women, and children who chose the British Isles as their new home, Great Britain symbolized hope for a life free from persecution. By 1941, however, many refugees from Germany found themselves arrested and put into camps, not by the Nazis, but by their protectors, the British

    Controlled intermittent interfacial bond concept for composite materials

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    Concept will enhance fracture resistance of high-strength filamentary composite without degrading its tensile strength or elastic modulus. Concept provides more economical composite systems, tailored for specific applications, and composite materials with mechanical properties, such as tensile strength, fracture strain, and fracture toughness, that can be optimized

    Design of a lattice-based faceted classification system

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    We describe a software reuse architecture supporting component retrieval by facet classes. The facets are organized into a lattice of facet sets and facet n-tuples. The query mechanism supports precise retrieval and flexible browsing

    An optimal controller based on linear approximation of an acoustical test facility, part B Final report

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    Optimal digital controller based on linear approximation of acoustical test facility, for determining effects of supersonic rocket engine noise on vehicle surfac

    Investigation of an embedded-optical-base system's functionality in detecting signal events for gait measurements

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    2018 Fall.Includes bibliographical references.Optical sensors have the potential to provide automated gait analysis and lameness detection in livestock. Measuring animals in motion while under field conditions is difficult for current gait analysis tools, such as plate and mat methods. This has caused a lack in commercially available systems. Additionally, a deficit of these systems and others is too much noise in their signal. Current sensor systems for static or in-motion measurements rely significantly on managing this noise as a source of error. From these problems, the primary objective of this body of work was to assess the use of an embedded-optical-base system (EOBS) and its ability to obtain real-time gait measurements from livestock. The research was composed of 3 field studies and 1 controlled study. Gait data was obtained using a commercial platform (2.4 m x 0.9 m; length x width) containing 1 EOBS. A signal-base-unit (SBU) and computer were setup near the EOBS platform by integrated cabling to collect real-time signal data. Signal fluctuation measurements (i.e., signal amplitude from hoof contact; 0 to 1 arbitrary units (au)) and kinematics (e.g., estimated speed, velocity and time duration) were recorded. The sensor detected hoof contact as signal amplitudes that could be examined in real time. Visual observations and video analyses were used for validating and classifying signal readings. The initial pilot study (field test) included 8 fistulated, crossbred steers (n = 8) tested over 1 d with 2 passes per animal over the EOBS platform. Pilot study data were used to evaluate initial signal fluctuations from animal contact. A second field study included 50 crossbred and purebred (n = 20, Angus; n = 10, Hereford; n = 20, Angus x Hereford) steers and heifers (n = 50; average BW = 292.5 kg) tested on 2 d over a 1-wk period with a total of 6 passes over the EOBS platform per animal. Steer and heifer normal walks, runs, and abnormal passes over the EOBS platform were analyzed. A third controlled study consisted of 3 mixed breed horses (n = 3) that had bilateral forelimb injections. Horses had both deep digital flexor muscles injected (1 with Botox and 1 with saline) with right and left forelimbs randomized. Horses were observed on 3 d over a 124-d period consisting of pre-treatment (baseline), post-treatment, and recovery test days with 10 passes over the EOBS platform per horse per day. Primary fluctuations, true (anomaly free) signal readings, from animal contact with the EOBS platform were analyzed. True signal readings were determined based on no influence observed from other limbs. A fourth field study consisted of 8 commercial bulls (n = 8) tested on 1 d with 3 passes over the EOBS platform per bull. Bulls were classified as either normal or abnormal in musculoskeletal structure and compared to one another to observe differences in signal fluctuation patterns. During the cattle studies, animals were not controlled and allowed to walk over the EOBS platform at their own pace. These studies formed the groundwork to determine the EOBS's functionality when animals passed over the platform. Signalment (i.e., breed, sex and age) and physiological characterizations were recorded. Temperature was also recorded for cattle field tests (e.g., min -6°C to max 4°C, respectively). For all 4 studies individual animal signal measurements were analyzed for each pass over the EOBS platform, compared to video data and classified for analysis. Results from all 4 studies showed intra- and inter-animal repeatability (qualitative observation) of observed signal readings. Though a variety of hoof contact signatures were obtained, repeating patterns were evident for both groups and individual animals. The embedded-optical-base system's (EOBS) functionality proved to be robust and operable under field trial conditions. Additionally, the signal showed extremely minimal noise. Lastly, the EOBS showed a stable baseline with clear deviations from it that could be correlated to hoof contact through video validation. Though the EOBS detected animal contact per pass, future work will investigate the system's operating readiness in accurately assessing variable gait measurements for lameness detection. Overall, data provides evidence that the embedded-optical-base system (EOBS) can detect hoof contact and differentiation between types of gait based on signal events

    Head Shops - Legitimate Governmental Interest in Regulating the Sale of Drug Paraphernalia Receives Judicial Recognition

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    For the first time, the Supreme Court, in Village of Hoffman Estates v. Flipside, Hoffman Estates, Inc., rendered an opinion concerning the validity of a regulatory drug paraphernalia law, which was challenged as being impermissibly vague and overbroad. In Hoffman, a unanimous Court upheld the ruling of the District Court for the Northern District of Illinois and reversed the United States Court of Appeals for the Seventh Circuit. The court of appeals held that a municipal ordinance requiring businesses within the municipality to obtain a license if they sold any items designed or marketed for use with illegal cannabis or drugs was facially vague and overbroad. Since the challenged ordinance in Hoffman was regulatory in nature, at least one commentator has suggested that the ruling may be of minimal significance. This note will examine the decision rendered by the Court in Hoffman and its predictive value, if any, on the question of future facial challenges to drug paraphernalia laws

    Head Shops - Legitimate Governmental Interest in Regulating the Sale of Drug Paraphernalia Receives Judicial Recognition

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    For the first time, the Supreme Court, in Village of Hoffman Estates v. Flipside, Hoffman Estates, Inc., rendered an opinion concerning the validity of a regulatory drug paraphernalia law, which was challenged as being impermissibly vague and overbroad. In Hoffman, a unanimous Court upheld the ruling of the District Court for the Northern District of Illinois and reversed the United States Court of Appeals for the Seventh Circuit. The court of appeals held that a municipal ordinance requiring businesses within the municipality to obtain a license if they sold any items designed or marketed for use with illegal cannabis or drugs was facially vague and overbroad. Since the challenged ordinance in Hoffman was regulatory in nature, at least one commentator has suggested that the ruling may be of minimal significance. This note will examine the decision rendered by the Court in Hoffman and its predictive value, if any, on the question of future facial challenges to drug paraphernalia laws
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