2,032 research outputs found

    Research into the feasibility of metal- and oxide-film capacitors

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    Thin film capacitors with up to twenty-two active layers have been deposited by RF sputtering. The materials were aluminum electrodes of 1200 to 1500 angstrom thickness and silica dielectric layers of 3000 to 6000 angstrom thickness. The best electrical characteristics were capacitances of nearly 0.1 microfarad for an active area of 1.25 square centimeters, dissipation factor of less than 0.01 over a frequency range of 0.5 to 100 kilohertz and energy density of approximately 70 millijoules per cubic centimeter of active deposited material at a working voltage of 40 volts. These aluminum-silica capacitors exhibit excellent electrical stability over a temperature range from -55 C to +300 C

    Research into the feasibility of thin metal and oxide-film capacitors Final technical report

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    Feasibility of producing thin metal and oxide- film capacitors with stable electrical properties in high temperature environment

    Research into the feasibility of thin metal and oxide film capacitors

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    Feasibility of thin metal and oxide film capacitor

    Intangible assets and investments at the sector level : empirical evidence for Germany

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    This paper investigates the role intangible capital plays for economic growth in different sectors in Germany. It consists of two major parts. In the first part, we aim at measuring investment in intangibles at the sector level. We shed light on differences across sectors but also compare these figures with investment in physical capital and with investment in intangibles in the UK as European benchmark. The second part explores the role of intangible assets for stimulating growth at the sector level by performing growth accounting analyses. We find that German firms have boosted investments in intangible capital from 1995-2006 by 30%. Furthermore, results reveal differences in the investment patterns among the UK and Germany. In nearly all sectors investments in design and computerized information are larger in the UK. In contrast, German firms invest a higher proportion of gross output in R&D in all sectors, and advertising is also more common except for the sector trade & transport. Intangible assets have stimulated labour productivity growth in all sectors. The contribution varies between 0.17 (construction) and 0.59 (manufacturing) percentage points. In manufacturing, financial and business services innovative property capital is the most influential type of intangible capital for labour productivity, followed by economic competencies and computerized information. In all other sectors, economic competencies play the most prominent role for labour productivity growth

    Bounding sup-norms of cusp forms of large level

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    Let f be an L2L^2-normalized weight zero Hecke-Maass cusp form of square-free level N, character χ\chi and Laplacian eigenvalue λ≥1/4\lambda\geq 1/4. It is shown that ∥f∥∞≪λN−1/37\| f \|_{\infty} \ll_{\lambda} N^{-1/37}, from which the hybrid bound ∥f∥∞≪λ1/4(Nλ)−δ\|f \|_{\infty} \ll \lambda^{1/4} (N\lambda)^{-\delta} (for some δ>0\delta > 0) is derived. The first bound holds also for f=yk/2Ff = y^{k/2}F where F is a holomorphic cusp form of weight k with the implied constant now depending on k.Comment: version 3: substantially revised versio
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