670 research outputs found

    I Am Not A Prisoner of War : Agency, Adaptability, and Fulfillment of Expectations Among American Prisoners of War Held in Nazi Germany

    Get PDF
    In war memory, the typical prisoner of war narrative is one of either passive survival or heroic resistance. However, captured service members did not necessarily lose their agency when they lost their freedom. This study of Americans held in Germany during the Second World War shows that prisoners generally grounded themselves in their personal and national identities, while compromising ideas of heroism, sometimes passing up opportunities for resistance in order to survive

    Silicate luminescence and remote compositional mapping

    Get PDF
    Silicate luminescence and remote compositional mappin

    Luminescence of Apollo 11 and 12 lunar samples

    Get PDF
    Luminescence of Apollo 11 and 12 rocks measured with UV, X ray, and proton radiatio

    Feasibility study of the ultraviolet spectral analysis of the lunar surface

    Get PDF
    Ultraviolet spectral analysis of granite, gabbro, and serpentinite samples to determine feasibility of mapping surface composition of moo

    Luminescence analysis of lunar samples returned by Apollo: Luminescence of Apollo 14 and Apollo 15 lunar samples

    Get PDF
    Luminescence measurements were made of Apollo 14 lunar samples with far UV X-ray, and proton irradiation and of Apollo 15 lunar samples with X-ray irradiation. Preliminary efficiencies with the far UV are in the range 0.001 to 0.01; efficiencies with X-rays and protons are in the range 10 to the -8th to 10 to the -6th powers. The crystalline igneous rocks show higher efficiencies, in general, than the breccias and glasses, and the ratio of intensity of the green to the blue luminescence peak tends to be higher for the crystalline igneous rocks than for breccias and glasses. Therefore, both the efficiency and the spectral character appear to have a systematic relationship to lithologic type (granitic versus gabbroic versus fragmental) and to geologic history and processes on the moon (shocked versus unshocked or only mildly shocked material)

    Study of particles collected by the 1966 Luster rocket /Luster 2/ Final report

    Get PDF
    Electron diffraction and microprobe analysis of extraterrestrial particles collected by Luster 2 rocket during Orionid showe

    Study of particles collected by the 1965 Luster rocket

    Get PDF
    Heat annealing tests of Luster rocket collected micrometeorites to determine whether radiation damage can distinguish extraterrestrial from terrestrial particle

    Toward Energetically Autonomous Foraging Soft Robots

    Get PDF
    © 2016, Mary Ann Liebert, Inc. A significant goal of robotics is to develop autonomous machines, capable of independent and collective operation free from human assistance. To operate with complete autonomy robots must be capable of independent movement and total energy self-sufficiency. We present the design of a soft robotic mouth and artificial stomach for aquatic robots that will allow them to feed on biomatter in their surrounding environment. The robot is powered by electrical energy generated through bacterial respiration within a microbial fuel cell (MFC) stomach, and harvested using state-of-the-art voltage step-up electronics. Through innovative exploitation of compliant, biomimetic actuation, the soft robotic feeding mechanism enables the connection of multiple MFC stomachs in series configuration in an aquatic environment, previously a significant challenge. We investigate how a similar soft robotic feeding mechanism could be driven by electroactive polymer artificial muscles from the same bioenergy supply. This work demonstrates the potential for energetically autonomous soft robotic artificial organisms and sets the stage for radically different future robots
    corecore