28,870 research outputs found

    A manipulator arm for zero-g simulations

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    A 12-ft counterbalanced Slave Manipulator Arm (SMA) was designed and fabricated to be used for resolving the questions of operational applications, capabilities, and limitations for such remote manned systems as the Payload Deployment and Retrieval Mechanism (PDRM) for the shuttle, the Free-Flying Teleoperator System, the Advanced Space Tug, and Planetary Rovers. As a developmental tool for the shuttle manipulator system (or PDRM), the SMA represents an approximate one-quarter scale working model for simulating and demonstrating payload handling, docking assistance, and satellite servicing. For the Free-Flying Teleoperator System and the Advanced Tug, the SMA provides a near full-scale developmental tool for satellite servicing, docking, and deployment/retrieval procedures, techniques, and support equipment requirements. For the Planetary Rovers, it provides an oversize developmental tool for sample handling and soil mechanics investigations. The design of the SMA was based on concepts developed for a 40-ft NASA technology arm to be used for zero-g shuttle manipulator simulations

    The supervisory implications of financial globalization: three views

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    At the 1989 Lake Bluff conference on globalization, three authorities presented their personal—and conflicting—views on international financial regulation in general, and the 1988 BIS-sponsored Basle agreement, in particular.International finance ; Bank capital

    Multiple agents, blame games and public policy-making: the case of local government reform in New South Wales

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    © 2016 Australian Political Studies Association. Politicians often use ‘independent experts’ to avoid blame for contentious public policy. The use of multiple agents, however, has attracted relatively little attention. We extend the blame-avoidance literature to identify additional opportunities and risks that arise when multiple agents are used to support/oppose particular public policies. We then test our propositions using evidence from recent local government reforms in New South Wales. The picture which emerges is largely one of confusion whereby independent agents provide contradictory opinions, attempt to shift blame to one another, and dispute interpretations of earlier advice. We conclude our analysis with a discussion of the salient factors for successful pursuit of the multiple-agent variant of the blame games

    Model Independent Primordial Power Spectrum from Maxima, Boomerang, and DASI Data

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    A model-independent determination of the primordial power spectrum of matter density fluctuations could uniquely probe physics of the very early universe, and provide powerful constraints on inflationary models. We parametrize the primordial power spectrum As2(k)A_s^2(k) as an arbitrary function, and deduce its binned amplitude from the cosmic microwave background radiation anisotropy (CMB) measurements of Maxima, Boomerang, and DASI. We find that for a flat universe with As2(k)=1A_s^2(k)=1 (scale-invariant) for scales k<0.001k<0.001 h/Mpc, the primordial power spectrum is marginally consistent with a scale-invariant Harrison-Zeldovich spectrum. However, we deduce a rise in power compared to a scale-invariant power spectrum for 0.001 h/{Mpc} \la k \la 0.01 h/{Mpc}. Our results are consistent with large-scale structure data, and seem to suggest that the current observational data allow for the possibility of unusual physics in the very early universe.Comment: substantially revised and final version, accepted by Ap

    Subsidiarity: More than a principle of decentralization-A view from local government

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    © The Author 2017. Published by Oxford University Press on behalf of CSF Associates: Publius, Inc. A common interpretation of the principle of subsidiarity in the federalism literature is that decentralized government, which is closer to the people, is better able to respond to the preferences of its citizens. However, when the principle is denuded of its moral foundations in this fashion it not only fails to provide the grounding for achieving human dignity and the common good, but may also become the harbinger of fiscal crises and social dysfunction. We provide a more comprehensive account of the principle of subsidiarity and contrast this with various conceptions prominently presented in the federalism literature.We then explore how this more comprehensive view of subsidiarity would look in practice. In short, we argue that mere decentralization of government fails to capture the ontology and desirable outcomes of the principle of subsidiarity

    Investigation of critical slowing down in a bistable S-SEED

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    A simulation of S-SEED switching based upon experimental data is developed that includes the effect of critical slowing down. The simulation's accuracy is demonstrated by close agreement with the results from experimental S-SEED switching. The simulation is subsequently used to understand how the phenomenon of critical slowing down applies to switching of an S-SEED and how the effect on photonic analog-to-digital (A/D) converter performance may be minimized.B. A. Clare, K. A. Corbett, K. J. Grant, P. B. Atanackovic, W. Marwood and J. Munc

    Natural Law, the Principle of Double Effect, Non-Voluntary Euthanasia and Public Policy

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