13,456 research outputs found

    A Diverse System Delivers for Pre-K: Lessons Learned in New York State

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    Today, policymakers with an interest in school success no longer debate why states should provide pre-kindergarten; that case has been made successfully to voters, educators, and researchers. Instead, policymakers now wrestle with how to get the job done. Increasingly, they turn to what those in the pre-k field call 'diverse' or 'mixed' delivery, which uses both community-based and school sites to provide pre-k services. This report examines the experience of one state - New York - using a diverse system to deliver pre-k services and provides lessons for other states as they build and expand their pre-k programs

    Satellite auxiliary propulsion systems

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    Report is announced which describes techniques for selecting optimum system for specific satellite mission. Descriptions of propulsion systems are presented along with illustrations and diagrams. Report contains references, cost-effectiveness techniques, and reliability measurements and estimates

    Privacy Leakages in Approximate Adders

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    Approximate computing has recently emerged as a promising method to meet the low power requirements of digital designs. The erroneous outputs produced in approximate computing can be partially a function of each chip's process variation. We show that, in such schemes, the erroneous outputs produced on each chip instance can reveal the identity of the chip that performed the computation, possibly jeopardizing user privacy. In this work, we perform simulation experiments on 32-bit Ripple Carry Adders, Carry Lookahead Adders, and Han-Carlson Adders running at over-scaled operating points. Our results show that identification is possible, we contrast the identifiability of each type of adder, and we quantify how success of identification varies with the extent of over-scaling and noise. Our results are the first to show that approximate digital computations may compromise privacy. Designers of future approximate computing systems should be aware of the possible privacy leakages and decide whether mitigation is warranted in their application.Comment: 2017 IEEE International Symposium on Circuits and Systems (ISCAS

    Hoisting frame facilitates handling of large objects

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    Hoisting frame can be used with a standard 5-ton forklift to handle the large spreader bars, or other bulky pieces of equipment, much faster and more efficiently than with a boom or gantry crane. In addition forklifts of this type are more readily available

    Serving People with Disabilities through the Workforce Investment Act's One-Stop Career Centers

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    This paper examines the extent to which people with disabilities are served through WIA's One-Stop system and discusses its capacity to serve people with disabilities who desire employment assistance, both in terms of common barriers to access as well as promising strategies to improve service delivery to people with disabilities

    Self-Organizing Maps and Parton Distributions Functions

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    We present a new method to extract parton distribution functions from high energy experimental data based on a specific type of neural networks, the Self-Organizing Maps. We illustrate the features of our new procedure that are particularly useful for an anaysis directed at extracting generalized parton distributions from data. We show quantitative results of our initial analysis of the parton distribution functions from inclusive deep inelastic scattering.Comment: 8 pages, 4 figures, to appear in the proceedings of "Workshop on Exclusive Reactions at High Momentum Transfer (IV)", Jefferson Lab, May 18th -21st, 201

    High performance computing and communications program

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    A review of the High Performance Computing and Communications (HPCC) program is provided in vugraph format. The goals and objectives of this federal program are as follows: extend U.S. leadership in high performance computing and computer communications; disseminate the technologies to speed innovation and to serve national goals; and spur gains in industrial competitiveness by making high performance computing integral to design and production
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