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  • Electronic Resource  (14)
  • 1965-1969  (14)
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  • Electronic Resource  (14)
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  • 11
    Electronic Resource
    Electronic Resource
    Effect of Dietary Carbohydrate on Hepatic Lipogenesis in the Rat (1968)
    [s.l.] : Nature Publishing Group
    Nature 217 (1968), S. 471-472 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The purpose of the experiments reported here was to study the influence of dietary sucrose, fructose, glucose and rich starch on hepatic lipogenesis and the activities of some enzymes thought to be associated with lipogenesis. Male Wistar rats were given the experimental diets adlibitum for 6 days ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/217471b0
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    Paper (German National Licenses)
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  • 12
    Electronic Resource
    Electronic Resource
    A multiple-pulse ruby-laser system for dynamic photomechanics: Applications to transmitted- and scattered-light photoelasticity (1969)
    Springer
    Experimental mechanics 9 (1969), S. 385-393 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract An ultrahigh-speed multiple-frame recording system for two- and three-dimensional dynamic photomechanics has been developed and is described here. The output from a ruby laser is modulated with a Pockels cell to produce a train of short, intense, monochromatic and polarized light pulses. Pulse widths of 50 nsec and repetition rates of up to 170,000 pulses/sec are obtained. These light pulses are synchronized with a “smear camera” and the event to produce a multiple-frame record of the phenomenon. The simplified camera requirements necessary for this purpose are indicated. The system is demonstrated by recording two-dimensional dynamic and scattered-light isochromatic fringe patterns. The capability of multiple recording of scattered-light fringe patterns, achieved here for the first time, has a tremendous potential for three-dimensional dynamic stress analysis. The developed system is also well suited for dynamic moiré, interferometry and holography.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02327003
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    Paper (German National Licenses)
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  • 13
    Electronic Resource
    Electronic Resource
    Applications of lasers to photoelasticity (1966)
    Springer
    Experimental mechanics 6 (1966), S. 289-296 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract This paper discusses briefly the principles of gaseous and ruby lasers and makes comparisons of pertinent properties of lasers and conventional light sources. Since the output from a laser is a highly collimated beam of monochromatic light that can be made extremely intense and plane polarized, the eminent suitability of lasers as light sources for photoelasticity is suggested. Lasers are shown to be superior to conventional light sources, especially for the scattered-light method and for high-speed dynamic work. Experiments are described and results are given for using lasers for (1) the scattered-light method, (2) a conventional transmission polariscope with static loads and (3) dynamic photoelasticity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02327508
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    Paper (German National Licenses)
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  • 14
    Electronic Resource
    Electronic Resource
    Dynamic-stress concentration using photoelasticity and a laser light source (1966)
    Springer
    Experimental mechanics 6 (1966), S. 337-341 
    Details
    ISSN: 1741-2765
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Since experimental techniques using dynamic photoelasticity are, in general, limited by suitably intense monochromatic light sources, it was of primary importance to describe a ruby-laser system which would completely remove this particular aspect of the problem. Modulation of the system, in this case by a Kerr cell, provides the necessary control of the light output such that a complete series of results can be obtained by putting together the results of many individual tests recorded on a conventional still camera. In this case, the dynamic-stress-concentration factor in a strut with a symmetrically located circular discontinuity was determined to establish definitely the potential of the system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02327209
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    Paper (German National Licenses)
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