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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 6 of 6 for “"Photographic plates"”.

  1. An examination of some experimental methods of comparing intensities of spectrum lines

    Smallwood, S. E. F.Northern Polytechnic1956

    … of spectrum lines are described, using photographic plates, photomultipliers and photo-resistive cells as the measuring instruments. The performance of each of these detectors was assessed by using them, in turn, to determine the intensity ratios of the components of a particular mercury …

    london-metro Repository record

  2. The History and Development of the Football Helmet

    Quam, Paul E.

    … changes in design of football headgear, humorous photographic plates included throughout the chronicled data depict graphically the changes which occurred. These photographs provide a proper perspective for an understanding of the present day football helmet.</p> <p>An account of the explanation …

    nodak Repository record

  3. A Feasibility Study for Using the ERAU Échelle Spectrograph to Improve Orbital Parameters of Spectroscopic Binary Systems

    Letchev, Stanimir

    … CCD technology since their first observations on photographic plates. This thesis examines the feasibility of using the high-resolution échelle spectrograph at Embry-Riddle Aeronautical University (ERAU) to obtain radial velocities of spectroscopic binary stars, and establishes a software …

    embry-riddle Repository record

  4. AN OBSERVATIONAL STUDY OF LOW-MASS STAR FORMATION IN NGC 2264

    Adams, Mark ThomasThe University of Arizona.1981

    … 2264, is examined in this thesis using UBVRIHα photographic plate material. After digitization and removal of the variable background from these plates, automatic detection and photometry algorithms yield magnitudes for a set of candidate low-mass cluster members. Using the photographic plates …

    arizona-thes Repository record

  5. An automated tungsten source sensitometer

    Rudolph, Michael L.

    rit Repository record

  6. Large groups of quasars in an ultraviolet-excess survey

    Newman, Peter RaymondUniversity of Central Lancashire1999

    … 20 and (Uj - b) < —0.3 from UK Schmidt Telescope photographic plates in the U and J bands digitized on the SuperCOSMOS machine at the Royal Observatory Edinburgh. The methods developed for astrometric and photometric calibration of the SuperCOSMOS data are described in detail. Positional …

    cent-lancashire Repository record