70,828 research outputs found

    RF shielded connectors

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    Gap, where cable joins connector housing, is shielded effectively by composite RF shielding made from suitable potting resin material (fumed silica, thixotropic prepolymer composition), conductive coating (silver-filled, flexible, polyurethane resin), and protective jacket (wax coated housing formed around another wax form having contours shaped to match configuration)

    Moral imagination or heuristic toolbox? Events and the risk assessment of structured financial products in the financial bubble

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    The paper uses the example of the failure of bankers and financial managers to understand the risks of dealing in structured financial products, prior to the financial collapse, to investigate how people respond to crises. It focuses on whether crises cause people to challenge their habitual frames by the application of moral imagination. It is proposed that the structure of financial products and their markets triggered the use of heuristics that contributed to the underestimation of risks. It is further proposed that such framing heuristics are highly specialised to specific contexts, and are part of a wider set of heuristics that people carry in their cognitive ‘adaptive tool boxes’. Consequently, it is argued, when a crisis occurs the heuristics are not challenged, but are simply put away, and other more appropriate heuristics put to use until a sense of normality returns, and the use of the old heuristics is resumed

    Calculations for mosaics with plane and curved grating elements quarterly progress report no. 4

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    Review of calculations of plane grating mosaic for photon energ

    Precise time and time interval data handling and reduction

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    In the past year, the increase in Precise Time And Time Interval data to be reduced to the U.S. Naval Observatory Master Clock and the requirement for its quick dissemination has necessitated development of more efficient methods of data handling and reduction. An outline of the data involved and of the Time Service computerization of these functions is presented

    The state of state and local government finance

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    This paper provides an overview of the state-local government sector, a review of the short-run impact of the 2007-09 recession on state and local governments, and a brief summary of key long-run challenges state and local governments will encounter in the next decade. State and local governments in aggregate represent about one-seventh of the U.S. economy, with education and welfare (mostly Medicaid) accounting for more than half. These governments currently face nearly unprecedented fiscal turmoil as a result of the recent recession. Even after the economy recovers, states and localities will face challenges both to improve effectiveness and efficiency in public service provision and to generate revenue sufficient to fund these crucial public services.Municipal finance ; State finance ; Fiscal policy

    Laser Schlieren and ultraviolet diagnostics of rocket combustion

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    A low pressure oxygen/hydrogen turbine drive combustor hot-fire test series was conducted on the Turbine Drive Combustor Technology Program. The first objective was to gather data on an axisymmetric combustion system to support anchoring of a new combustion/fluid dynamics computer code under development on the same contract. The second objective was to gain insight into low mixture ratio combustion characteristics of coaxial injector elements
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