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  • 1
    Electronic Resource
    Electronic Resource
    Development of ferrite core readout on the pulsed electrode of wire planes
    Amsterdam : Elsevier
    Nuclear Instruments and Methods 48 (1967), S. 177-178 
    Details
    ISSN: 0029-554X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0029-554X(67)90485-5
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  • 2
    Electronic Resource
    Electronic Resource
    Local magnetic order in57Fe doped Y(Ce)Co4B (1994)
    Springer
    Hyperfine interactions 93 (1994), S. 1531-1536 
    Details
    ISSN: 1572-9540
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract In order to monitor the peculiar temperature dependence of the magnetization of the compounds YCo4B and CeCo4B from an atomistic point of view, samples doped with 1%57Fe were studied by Mössbauer spectroscopy. From the two Co-sites present in this structure (2c, 6i), only the latter were found to be equipped by Fe. In the case of the Y-compound, the change of direction of the easy axis of magnetization could be confirmed. The broad maximum observed for the magnetization of the Ce-compound is not reflected by the57Fe hyperfine field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02072904
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  • 3
    Electronic Resource
    Electronic Resource
    Versuche zum periodischen Verhalten vonBiomphalaria glabrata (1981)
    Springer
    Parasitology research 64 (1981), S. 217-231 
    Details
    ISSN: 1432-1955
    Keywords: Biomphalaria glabrata ; Biology ; Periodic Phenomena ; Laboratory Technique
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Zusammenfassung Es wurde eine Methode zur Langzeitmessung der lokomotorischen Aktivität vonBiomphalaria glabrata entwickelt. Eine mit einer Co57-Quelle markierte Schnecke bewegt sich in einer Kreisbahn. Unter dem Versuchsbehälter rotiert eine Bleischeibe mit Schlitz (1 Umdrehung/min) über einem Großflächenzählrohr. Einmal pro Minute fällt die emittierte Radioaktivität durch den Schlitz auf das Zählrohr. Über die Impulsabstände wird die Position und daraus die lokomotorische Aktivität der Schnecke bestimmt. Unter konstanten Bedingungen ergibt sich in den anschließenden Versuchen sowohl bei mitSchistosoma mansoni infizierten als auch bei nicht infizierten Versuchstieren eine periodische Verteilung der Laufaktivität über den Tag. Die Schnecken zeigen tagsüber mehr lokomotorische Aktivität als nachts — mit einem deutlichen Maximum in der zweiten Stunde nach Lichtbeginn. Fütterungsexperimente mit J125-Fibrinogen-markiertem Futter ergeben nachts dreimal höhere Freßaktivität als am Tage. Durch eigene Versuche kann bestätigt werden, daß auch die Eiablage beiB. glabrata bevorzugt nachts stattfindet. Die Ergebnisse werden mit anderen bereits bekannten periodischen Phänomenen beiB. glabrata in einer Phasenkarte zusammengefaßt.
    Notes: Abstract A method was developed to measure the locomotive activity ofBiomphalaria glabrata over long periods of time. A snail, radioactively marked with a Co57-source, moves on a circular path. Beneath the experimental vessel a lead disc with a slit revolves (one revolution per minute) over a counter tube. Once every minute the amount of radioactivity emitted falls through the slit onto the counter tube. The position and thence the locomotive activity of the snail is determined from the intervals between the impulses. Under constant conditions the experiments show a distribution of crawling activity over the whole day that is the same for animals infected withSchistosoma mansoni and non-infected molluscs. The snails have more locomotive activity by day than by night, with a distinct maximum in the second hour after exposure to light. Experiments using food marked with I125-labelled fibrinogen revealed that feeding activity is three times as high at night as by day. The experiments also show thatBiomphalaria glabrata tends to prefer night-time for egg laying. The results are compared with other known periodic phenomena inB. glabrata in a phase-chart.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00930499
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  • 4
    Electronic Resource
    Electronic Resource
    Determination of fiber orientation of cellulosic samples by x-ray diffraction (1975)
    New York, NY [u.a.] : Wiley-Blackwell
    Journal of Applied Polymer Science 19 (1975), S. 2609-2620 
    Details
    ISSN: 0021-8995
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: A method has been developed which permits the quantitative determination of fiber orientation in a cellulosic sample (paper, nonwoven or composite). From the measured fibril angle distribution function and the observed variation in intensity of the (002) plane of the x-ray pattern, a parameter governing the fiber distribution function is obtained analytically. The method is demonstrated for two different paper samples showing a narrow and a large fiber orientation distribution. The method is rapid for a series of samples involving the same fibers and does not involve any operator interpretation. It gives directly the average fiber orientation function from the bulk of the sample, not just from its surface as microscopic methods do. It can be particularly useful in the analysis of paper-polymer laminates.
    Additional Material: 11 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/app.1975.070190922
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  • 5
    Electronic Resource
    Electronic Resource
    Light scattering by helical fiber structures: Experimental models (1976)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Physics Edition 14 (1976), S. 631-641 
    Details
    ISSN: 0098-1273
    Keywords: Physics ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Physics
    Notes: Samples of two helically wound monofilaments were used as experimental models to check the theoretical expression for light scattering from helixes. A method of estimating the pitch and tilt of the helixes was outlined and the results were compared with measurements from microscopy. The agreement was satisfactory. Layer line streaking and splitting was observed and explained in terms of irregularity of the helical parameters. Samples of several helically wound monofilaments were also prepared and their scattering patterns were compared with those from native and regenerated cellulosic fibers.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1976.180140405
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  • 6
    Electronic Resource
    Electronic Resource
    Linear polybenzyls. I. The crystal structure of poly-α-methylbenzyl (1975)
    New York : Wiley-Blackwell
    Journal of Polymer Science: Polymer Letters Edition 13 (1975), S. 559-565 
    Details
    ISSN: 0360-6384
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1975.130130909
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  • 7
    Electronic Resource
    Electronic Resource
    Some results on electron microscope investigations of polyether-urethane and polyester-urethane block copolymers (1970)
    New York : Wiley-Blackwell
    Journal of Polymer Science Part B: Polymer Letters 8 (1970), S. 353-359 
    Details
    ISSN: 0449-2986
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pol.1970.110080508
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