Anisotropy

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  • Anisotropy
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  • Anisotropy is the characteristic of a surface for which a physical property, such as reflectivity, varies in value with the direction in or along which the measurement is made.
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Abstract from DBPedia
    Anisotropy (/ˌænaɪˈsɒtrəpi, ˌænɪ-/) is the property of a material which allows it to change or assume different properties in different directions, as opposed to isotropy. It can be defined as a difference, when measured along different axes, in a material's physical or mechanical properties (absorbance, refractive index, conductivity, tensile strength, etc.). An example of anisotropy is light coming through a polarizer. Another is wood, which is easier to split along its grain than across it.

    ある対象の性質や分布が方向に依存しないときそれは等方的(とうほうてき、isotropic)であるといい、一方で、方向に依存するときは異方的(いほうてき、anisotropic)であるという。別な表現では、ある対象の性質や分布が回転により変化しないとき等方的であり、回転により変化するとき異方的である。対象が等方的か異方的かは、対象の等方性(isotropy)もしくは異方性(anisotropy)の有無として表現する場合もある。

    (Source: http://dbpedia.org/resource/Anisotropy)

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