Journal of Japanese Society of Biorheology
Online ISSN : 2186-5663
Print ISSN : 0913-4778
ISSN-L : 0913-4778
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Volume 6, Issue 3
Displaying 1-4 of 4 articles from this issue
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1992 Volume 6 Issue 3 Pages 1-16
    Published: September 30, 1992
    Released on J-STAGE: February 12, 2014
    DOIhttps://doi.org/10.11262/jpnbr1987.6.3_93
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    1992 Volume 6 Issue 3 Pages 17-25
    Published: September 30, 1992
    Released on J-STAGE: February 12, 2014
    DOIhttps://doi.org/10.11262/jpnbr1987.6.3_109
    JOURNAL FREE ACCESS
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  • Sedimentation of enterobacteria I
    A. Yoshikoshi, T. Dobashi, A. Sakanishi, A. Momose
    1992 Volume 6 Issue 3 Pages 26-31
    Published: September 30, 1992
    Released on J-STAGE: February 12, 2014
    DOIhttps://doi.org/10.11262/jpnbr1987.6.3_118
    JOURNAL FREE ACCESS
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    The sedimentation rates of enterobacterias Proteus mirabilis (Pm) and Escherichia coli (Ec) were measured in physiological saline solutions as functions of temperature and volume fraction. The Stokes velocity was estimated with the observed density and viscosity of the suspension and the dimensions of the enterobacterias. The observed and calculated sedimentation rates of Ec agreed well with each other, while the calculated sedimentation rate of Pm was much. larger than that observed at 20°C. With rise in the temperature, the sedimentation rate of Ec showed monotonic increase, while that of Pm dipped to a minimum at 37°C. Swarming velocity of Pm reached a maximum at 37°C, as well. This characteristic behavior of Pm may be related to the optimum temperature of 37°C for inducing activity both in saline solution and on a wet surface.
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  • Gelation of aqueous solutions of methylcellulose derivative for ophthalmic use I
    Atsuhiro Kasahara, Akio Sakanishi, Toshiaki Dobashi, Akira Momose
    1992 Volume 6 Issue 3 Pages 32-35
    Published: September 30, 1992
    Released on J-STAGE: February 12, 2014
    DOIhttps://doi.org/10.11262/jpnbr1987.6.3_124
    JOURNAL FREE ACCESS
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    Hydroxypropylmethylcellulose (HPMC) saline solution at the weight concentration of ca. 2% is one of media used as space filler for an anterior chamber in the recent ophthalmic viscosurgery of cataract extraction and intraocular lens implantation. As there are many insoluble particles in crude solutions of HPMC, we should filtrate the solution for medical use. Viscosity 77 and optical absorbance A540 of a filtrated HPMC solution were measured with the concentration of 1% at the heating and cooling rates θ=0.25 0.40 and 0.70°C /min. Remarkable hysteresis curves were observed for η and A540 as gelating above ca. 55°C, depending on θ. In HPMC solution at 2% η was dependent on the shear rate with two rotational viscometers at θ=0.70°C /min.
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