795 research outputs found

    Dexterous manipulator flight demonstration

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    The Dexterous Manipulator Flight Experiment, an outgrowth of the Dexterous End Effector project, is an experiment to demonstrate newly developed equipment and methods that make for a dexterous manipulator which can be used on the Space Shuttle or other space missions. The goals of the project, the objectives of the flight experiment, the experiment equipment, and the tasks to be performed during the demonstration are discussed

    Magnetic drive coupling

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    The driving and driven members of a magnetic drive are separated by en enlarged gap to provide clearance for a conduit or other member. Flux pins in the gap maintain the torque transmitting capability of the drive. The spacing between two of the flux pins is increased to provide space for the conduit

    Magnetic end effectors for space operations

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    The Magnetic End Effector (MEE) to be flown as part of the Dexterous End Effector (DEE) flight experiment was designed to operate with the Shuttle Remote Manipulator System (SRMS). Grappling or attachment of payloads is accomplished magnetically with two fault tolerant operations. The small magnetic grapple plate weighs far less than the standard grapple fixture; allows stacking and close spacing of payloads; and eliminates secondary release mechanisms. In addition to specifics regarding the MEE, the DEE project, Magnetic Attachment Tool (MAT), RMS-Force Torque Sensor (RMS-FTS), and Targeting and Reflective Alignment Concept (TRAC) are discussed

    Magnetic drive coupling

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    The driving (30) and driven (32) members of a magnetic drive (20) are separated by an enlarged gap (35) to provide clearance for a conduit (23) or other member. Flux pins (40) in the gap (35) maintain the torque transmitting capability of the drive (20). The spacing between two of the flux pins is increased to provide space for the conduit (23)

    The Future of International Law Freedom of Journalism: A Transitional Justice Framework

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    The overwhelming majority of digital and physical attacks on journalists are done with impunity. This results in lower-quality journalism, less scrutiny of government, and less healthy societies and democracies. The international human rights law concept of transitional justice could bolster collective will and inform legal mechanisms to combat such impunity. Judges and investigators in several recent cases of attacks on journalists have invoked transitional justice concepts, including truth-telling, criminal investigations and prosecutions, reparations, and institutional reforms to guarantee non-recurrence. These mechanisms should be fully implemented to protect journalism at local, national, and international levels

    Argentina\u27s Right to be Forgotten

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    Actresses, models and athletes have brought some two hundred lawsuits, most filed by the lawyer Adolfo Martín Leguizamón Peña, against Google and Yahoo to demand removal of Internet search results and links to photographs. Many of the plaintiffs allege that Internet search results improperly associate their photographs-some of which are sexually suggestive and which were presumably taken and posted originally with permission-with pornography or prostitution
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