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  2. Glass batch calculation - Wikipedia

    en.wikipedia.org/wiki/Glass_batch_calculation

    The batching matrix B indicates the relation of the molarity in the batch (columns) and in the glass (rows). For example, the batch component SiO 2 adds 1 mol SiO 2 to the glass, therefore, the intersection of the first column and row shows "1". Trona adds 1.5 mol Na 2 O to the glass; albite adds 6 mol SiO 2, 1 mol Na 2 O, and 1 mol Al 2 O 3 ...

  3. Refractive index and extinction coefficient of thin film ...

    en.wikipedia.org/wiki/Refractive_index_and...

    Spectroscopic reflectance of a thin film on a substrate represents the ratio of the intensity of light reflected from the sample to the intensity of incident light, measured over a range of wavelengths, whereas spectroscopic transmittance, T(λ), represents the ratio of the intensity of light transmitted through the sample to the intensity of ...

  4. Hardnesses of the elements (data page) - Wikipedia

    en.wikipedia.org/wiki/Hardnesses_of_the_elements...

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  5. Cyclic redundancy check - Wikipedia

    en.wikipedia.org/wiki/Cyclic_redundancy_check

    To compute an n-bit binary CRC, line the bits representing the input in a row, and position the (n + 1)-bit pattern representing the CRC's divisor (called a "polynomial") underneath the left end of the row.

  6. Nanoindentation - Wikipedia

    en.wikipedia.org/wiki/Nanoindentation

    Poisson's ratio of the specimen, , generally varies between 0 and 0.5 for most materials (though it can be negative) and is typically around 0.3. An atomic force microscope image of an indent left by a Berkovich tip in a Zr-Cu-Al metallic glass; the plastic flow of the material around the indenter is apparent.

  7. Miller index - Wikipedia

    en.wikipedia.org/wiki/Miller_index

    This construction corresponds precisely to the standard "cut-and-project" method of defining a quasicrystal, using a plane with irrational-ratio Miller indices. (Although many quasicrystals, such as the Penrose tiling , are formed by "cuts" of periodic lattices in more than three dimensions, involving the intersection of more than one such ...

  8. Charge carrier density - Wikipedia

    en.wikipedia.org/wiki/Charge_carrier_density

    To calculate this number for electrons, we start with the idea that the total density of conduction-band electrons, , is just adding up the conduction electron density across the different energies in the band, from the bottom of the band to the top of the band .

  9. Atomic packing factor - Wikipedia

    en.wikipedia.org/wiki/Atomic_packing_factor

    In crystallography, atomic packing factor (APF), packing efficiency, or packing fraction is the fraction of volume in a crystal structure that is occupied by constituent particles.