38,774 research outputs found

    Examining Trends in the Nonresidential Building Construction Producer Price Indexes (PPIs)

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    In 2004, the Bureau of Labor Statistics (BLS) unveiled the Producer Price Index (PPI) nonresidential building construction initiative with the publication of an index for new warehouse building construction. PPI has since added nonresidential building construction indexes for schools, offices, industrial buildings, and health care buildings. This construction sector initiative is noteworthy as it expanded coverage into an important sector of the U.S. economy not previously measured by the PPI, and allowed the examination of different drivers of building construction inflation. According to Bureau of Economic Analysis (BEA) data, in the first quarter of 2005, the value of private fixed investment in structures totaled 1.137trillion,representingabout8.9percentoftotalgrossdomesticproduct(GDP).Ofprivatefixedinvestmentinstructures,nonresidentialstructuresalonerepresented1.137 trillion, representing about 8.9 percent of total gross domestic product (GDP). Of private fixed investment in structures, nonresidential structures alone represented 330.8 billion, or about 2.6 percent of total GDP. By the fourth quarter of 2013, nonresidential structures investments grew to $473.4 billion, or 2.8 percent of total GDP

    Tire/wheel concept

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    A tire and wheel assembly is disclosed in which a low profile pneumatic tire (having sidewalls which deflect inwardly under load) and a wheel (having a rim featuring a narrow central channel and extended rim flanges) form the combination. The extended rim flanges support the tire sidewalls under static and dynamic loading conditions to produce a combination particularly suited to aircraft applications

    Changes in New Mexico Agriculture 1992

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    Industrial Organization,

    Design, cost, and advanced technology applications for a military trainer aircraft

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    The potential impact is examined of advanced aerodynamic and propulsive technologies in terms of operating and acquisition costs on conceptual mission and performance requirements for a future undergraduate jet pilot trainer aircraft

    Changes in New Mexico Agriculture 1995

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    Industrial Organization,

    Detection of thermal radio emission from a single coronal giant

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    We report the detection of thermal continuum radio emission from the K0 III coronal giant Pollux (β\beta Gem) with the Karl G. Jansky Very Large Array (VLA). The star was detected at 21 and 9 GHz with flux density values of 150±21150\pm21 and 43±8μ43\pm8\,\muJy, respectively. We also place a 3σrms3\sigma_{\mathrm{rms}} upper limit of 23μ23\,\muJy for the flux density at 3 GHz. We find the stellar disk-averaged brightness temperatures to be approximately 9500, 15000, and <71000<71000\,K, at 21, 9, and 3 GHz, respectively, which are consistent with the values of the quiet Sun. The emission is most likely dominated by optically thick thermal emission from an upper chromosphere at 21 and 9 GHz. We discuss other possible additional sources of emission at all frequencies and show that there may also be a small contribution from gyroresonance emission above active regions, coronal free-free emission and free-free emission from an optically thin stellar wind, particularly at the lower frequencies. We constrain the maximum mass-loss rate from Pollux to be less than 3.7×1011M3.7\times 10^{-11}\,M_{\odot} yr1^{-1} (assuming a wind terminal velocity of 215 km s1^{-1}), which is about an order of magnitude smaller than previous constraints for coronal giants and is in agreement with existing predictions for the mass-loss rate of Pollux. These are the first detections of thermal radio emission from a single (i.e., non-binary) coronal giant and demonstrate that low activity coronal giants like Pollux have atmospheres at radio frequencies akin to the quiet Sun

    Study of properties of high-field superconductors at elevated temperatures Final technical report, 27 Apr. - 26 Aug. 1966

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    Properties of high field superconductors at high temperatures - magnetization experiments on niobium and niobium compound
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