Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Biorheological methods employing the Weissenberg rheogoniometer.

R G King, S Chien, S Usami

    Biorheology. Supplement : the Official Journal of the International Society of Biorheology
    |January 1, 1984
    PubMed
    Summary

    This study uses the Weissenberg Rheogoniometer to analyze biorheological fluids, including blood. It measures shear properties using continuous and oscillatory methods to understand fluid behavior in health and disease.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Utility of Computed Tomography versus Abdominal Ultrasound Examination to Identify Iliosacral Lymphadenomegaly in Dogs with Apocrine Gland Adenocarcinoma of the Anal Sac.

    Journal of veterinary internal medicine·2016
    Same author

    Fiber-optic laser scanning confocal microscope suitable for fluorescence imaging.

    Applied optics·2010
    Same author

    A method and observations on capillary fragility in rabbits.

    Federation proceedings·2010
    Same author

    The clotting of limulus blood.

    Federation proceedings·2010
    Same author

    Comparative hematologic findings in normal, splenectomized and spleen-transplanted dogs.

    Surgery, gynecology & obstetrics·2010
    Same author

    Studies on platelets; the effect of platelets on the surface tension of saline solutions and heparinized plasma.

    Blood·2010

    Area of Science:

    • Biorheology
    • Biophysics
    • Materials Science

    Background:

    • Karl Weissenberg's theories provide a foundation for understanding fluid dynamics.
    • Biorheological fluids, like blood, exhibit complex flow behaviors crucial in biological systems.

    Purpose of the Study:

    • To characterize the bulk shear properties of biorheological fluids using the Weissenberg Rheogoniometer.
    • To investigate the behavior of biological materials, including blood and its components, under various shear conditions.
    • To analyze the impact of health and disease states on fluid rheology.

    Main Methods:

    • Continuous laminar shearing motion: Measuring tangential and normal stress components at varying shear rates to calculate apparent viscosity, elastic modulus, and recoverable strain.
    • Harmonic oscillatory motion: Applying small strain amplitudes at different frequencies to determine dynamic moduli of viscosity and elasticity.

    Related Experiment Videos

  • Investigating biological preparations such as whole blood, blood components, and plasma protein surface layers.

    • Main Results:

    • Apparent viscosity, elastic modulus, and recoverable strain were calculated as functions of shear rate in continuous motion.
    • Dynamic moduli of viscosity and elasticity were determined from oscillatory motion experiments.
    • Differences in physical structure at various shear rates were observed, impacting material properties.

    Conclusions:

    • The Weissenberg Rheogoniometer effectively characterizes biorheological fluid properties.
    • Both continuous and oscillatory shear methods provide valuable insights into the complex rheology of biological fluids.
    • Understanding these properties is essential for studying biological materials in health and disease states.