73,224 research outputs found

    Semiautomatic inspection of microfilm records

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    Semiautomatic machine inspects microfilm for deficiencies. Advantages of microfilm inspector are uniformity of inspection method, increased speed of inspection, and improved quality through elimination of scratches and finger marks

    Apparatus for inspecting microfilm Patent

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    Apparatus for semiautomatic inspection of microfilmed documents for density, resolution, size, and positio

    Admission Fees As Barrier To Entry: Joslyn Art Museum

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    Flying car design and testing

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    This paper is primarily concerned with the inverted design process and manufacture of a flying car prototype which can overcome the problem of traffic management in the world today. A possible solution to the problem of overcrowded roads would be to design a flying or hovering car. Given technological advances in aircraft construction, navigation and operation, flying cars or personal aircraft are now a feasible proposition. The viability of such a concept was investigated in terms of producing a conceptual design for a two-person carrying flying vehicle, manufacturing a flying prototype followed by ground and initial flight testing

    A Search for CO in the Local Group Dwarf Irregular Galaxy WLM

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    We present 12CO J = 1-0 and J = 2-1 observations of the low metallicity (12 + log(O/H) = 7.74) Local Group dwarf irregular galaxy WLM made with the 15 m SEST and 14 m FCRAO telescopes. Despite the presence a number of HII regions, we find no CO emission. We obtain low upper limits on the integrated intensity (I(CO) >= 0.18 K km/s for CO (1-0)). The non-detection is consistent with the result of Taylor, Kobulnicky and Skillman (1998), that dwarf galaxies below a metallicity of ~ 7.9 are not detected in CO emission. WLM shows that this trend continues for low metallicity galaxies even as their metallicities approach 7.9. These results are consistent with the models of the metal poor ISM by Norman and Spaans (1997). By comparing our CO data with observations of star formation in WLM, we find evidence for a high CO to H2_2 conversion factor.Comment: 11 pages, 3 figures, accepted by A&

    Magnetic clouds in the solar wind

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    Two interplanetary magnetic clouds, characterized by anomalous magnetic field directions and unusually high magnetic field strengths with a scale of the order of 0.25 AU, are identified and described. As the clouds moved past a spacecraft located in the solar wind near Earth, the magnetic field direction changed by rotating approximately 180 deg nearly parallel to a plane which was essentially perpendicular to the ecliptic. The configuration of the magnetic field in the clouds might be that of a tightly wound cylindrical helix or a series of closed circular loops. One of the magnetic clouds was in a cold stream preceded by a shock, and it caused both a geomagnetic storm and a depression in the galactic cosmic ray intensity. No stream, geomagnetic storm, or large cosmic ray decrease was associated with the other magnetic cloud

    Forging Ahead: Early Lessons

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    Outlines outcomes and lessons of the Scale Academy for Microenterprise Development's operational grants, training, and technical support for microenterprise organizations. Examines grantees' progress in and strategies for expanding services sustainably
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