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词汇 viscometer
释义

Definition of viscometer in English:

viscometer

nounvɪsˈkɒmɪtəvəˈskɑmədər
  • An instrument for measuring the viscosity of liquids.

    黏度计

    Example sentencesExamples
    • The steady-shear surface viscosity was measured in a custom built magnetic needle viscometer.
    • Rheological properties were measured using a capillary viscometer recording shear stress - shear rate relationship.
    • The Spectro technicians also use viscometers to test the viscosity of engine oil.
    • In addition, the cell orientation within the shear field varies in a random fashion due to cell-cell interactions when the hct is large as during preshear in the viscometer.
    • The simple viscometer devised for these experiments may also prove useful in other contexts.

Derivatives

  • viscometric

  • adjectivevɪskəˈmɛtrɪk
    • The combination of the minicapillary viscometer and the new viscometric measurements is practical in the study of DNA-lipid complexes, and possibly other particles including liposomes and bioactive polymers.
      Example sentencesExamples
      • In addition, viscometric measurements perturbed assembly by fragmenting filaments.
      • For the estimation of cellulase activity, carboxymethyl cellulose with a degree of substitution of 0.4 was used as a substrate in viscometric assays.
  • viscometrically

  • adverbvɪskəˈmɛtrɪk(ə)li
    • The degree of polymerisation was determined viscometrically, while diffuse reflectance FTIR was used to gain insight into the changes in the chemical composition.
      Example sentencesExamples
      • This water-soluble O carboxymethyl ether of pachyman is a useful substrate for assay of beta-D-glucan endo-hydrolases either reductometrically or viscometrically.
      • ß-Glucan endohydrolase activity was measured viscometrically at 40°C, using water-soluble barley ß-glucan as substrate.
      • Ultra-high molecular weight polyethylene has a viscometrically determined average molecular weight of about one million or more and its excellencies in impact strength and wear resistance are well-known in the industry.
      • A quantitative study to follow the time course of lipoplex maturation will be possible viscometrically using Eqs. 5 and 6.
  • viscometry

  • noun
    • Although viscometry is potentially an excellent tool for quality control of liposomes and lipoplexes, it has seldom been used in this field, most likely because it requires a large amount of sample.
      Example sentencesExamples
      • Except for the lowest molecular weight samples, all of the average molecular weights were determined by agarose gel electrophoresis or viscometry.
      • In some cases intercalative ability has been confirmed with the ethidium displacement assay or viscometry.
      • This introduction to size exclusion/gel permeation chromatography emphasizes column selection, conventional calibration, molar mass sensitive detectors, light scattering, viscometry, and high throughput methods.
      • Our studies of BIA-DNA interactions by isothermal titration calorimetry and viscometry were not successful mainly because of insufficient solubility of the imidazoacridone compounds in water (data not shown).

Origin

Late 19th century: from late Latin viscosus 'viscous' + -meter.

Definition of viscometer in US English:

viscometer

nounvəˈskämədərvəˈskɑmədər
  • An instrument for measuring the viscosity of liquids.

    黏度计

    Example sentencesExamples
    • Rheological properties were measured using a capillary viscometer recording shear stress - shear rate relationship.
    • The steady-shear surface viscosity was measured in a custom built magnetic needle viscometer.
    • The Spectro technicians also use viscometers to test the viscosity of engine oil.
    • In addition, the cell orientation within the shear field varies in a random fashion due to cell-cell interactions when the hct is large as during preshear in the viscometer.
    • The simple viscometer devised for these experiments may also prove useful in other contexts.

Origin

Late 19th century: from late Latin viscosus ‘viscous’ + -meter.

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