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  2. Viscosity - Wikipedia

    en.wikipedia.org/wiki/Viscosity

    The proportionality factor is the dynamic viscosity of the fluid, often simply referred to as the viscosity. It is denoted by the Greek letter mu ( μ ). The dynamic viscosity has the dimensions ( m a s s / l e n g t h ) / t i m e {\displaystyle \mathrm {(mass/length)/time} } , therefore resulting in the SI units and the derived units :

  3. List of common physics notations - Wikipedia

    en.wikipedia.org/wiki/List_of_common_physics...

    (dynamic) viscosity (also ) pascal second (Pa⋅s) permeability (electromagnetism) henry per meter (H/m) reduced mass: kilogram (kg) Standard gravitational parameter: cubic meter per second squared mu nought Vacuum permeability or the magnetic constant henry per meter (H/m)

  4. Volume viscosity - Wikipedia

    en.wikipedia.org/wiki/Volume_viscosity

    Common symbols are , ′,, or . It has dimensions (mass / (length × time)), and the corresponding SI unit is the pascal -second (Pa·s). Like other material properties (e.g. density , shear viscosity , and thermal conductivity ) the value of volume viscosity is specific to each fluid and depends additionally on the fluid state, particularly ...

  5. Shape factor (image analysis and microscopy) - Wikipedia

    en.wikipedia.org/wiki/Shape_factor_(image...

    The most common shape factor is the aspect ratio, a function of the largest diameter and the smallest diameter orthogonal to it: = The normalized aspect ratio varies from approaching zero for a very elongated particle, such as a grain in a cold-worked metal, to near unity for an equiaxed grain.

  6. Help:Displaying a formula - Wikipedia

    en.wikipedia.org/wiki/Help:Displaying_a_formula

    Variable names and many symbols look very different with raw HTML and the other display methods. This may be confusing in the common case where several methods are used in the same article. Moreover, mathematicians who are used to reading and writing texts written with LaTeX often find the raw HTML rendering awful.

  7. Visual Word - Wikipedia

    en.wikipedia.org/wiki/Visual_Word

    Consider that the pixels of an image, which are the smallest parts of a digital image and cannot be divided into smaller ones, are like the letters of an alphabetical language. Then, a set of pixels in an image (a patch or arrays of pixels) is a word. Each word can then be reprocessed into a morphological system to extract a term related to ...

  8. Normalization (image processing) - Wikipedia

    en.wikipedia.org/wiki/Normalization_(image...

    max is the maximum value for color level in the input image within the selected kernel. min is the minimum value for color level in the input image within the selected kernel. [4] Local contrast stretching considers each range of color palate in the image (R, G, and B) separately, providing a set of minimum and maximum values for each color palate.

  9. Superfluid helium-4 - Wikipedia

    en.wikipedia.org/wiki/Superfluid_helium-4

    The formation of the superfluid is a manifestation of the formation of a Bose–Einstein condensate of helium atoms. This condensation occurs in liquid helium-4 at a far higher temperature (2.17 K) than it does in helium-3 (2.5 mK) because each atom of helium-4 is a boson particle, by virtue of its zero spin .