891 resultados para Flexible packaging
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Includes index.
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"August 1982"--Vol. 1.
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"22 April 1983."
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"7 February 1997."
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Mode of access: Internet.
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"Service and methods demonstration."
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Shipping list no.: 93-0419-P.
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Mode of access: Internet.
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Enrollees chosen for the project were mainly from WIN (Work Incentive Program).
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At head of title: 97th Congress, 2d Session, House of Representatives, report no. 97-433.
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Prepared for the use of the Senate Committee on Labor and Public Welfare and the House Committee on Interstate and Foreign Commerce.
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A method is proposed for determining the optimal placement and controller design for multiple distributed actuators to reduce the vibrations of flexible structures. In particular, application of piezoceramic patches to a horizontally-slewing single-link flexible manipulator modeled using the assumed modes method is investigated. The optimization method uses simulated annealing and allows placement of any number of distributed actuators of unequal length, although piezoceramics of fixed equal lengths are used in the example. It also designs an linear-quadratic-regulator controller as part of the optimization procedure. The measures of performance used in the investigation to determine optimality are the total mass of the system and the time integral of the absolute value of the hub and tip position error. This study also varies the relative weightings for each of these performance measures to observe the effects on the controller designs and piezoceramic patch positions in the optimized solutions.