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Attenuation is the gradual loss in intensity of any kind of flux through a medium, including: * Acoustic attenuation, the loss of sound energy in a viscous medium * Anelastic attenuation factor, a way to describe attenuation of seismic energy in the Earth Attenuation may also refer to: * Attenuation (brewing), the percent of sugar converted to alcohol and carbon dioxide by the yeast in brewing * Attenuation coefficient, a basic quantity used in calculations of the penetration of materials by quantum particles or other energy beams * Mass attenuation coefficient, a measurement of how strongly a chemical species or substance absorbs or scatters light at a given wavelength, per unit mass * Regression attenuation or Regression dilution, a cause of statistical bias * The process of producing an attenuated vaccine by reducing the virulence of a pathogen * Attenuation constant, the real part of the propagation constant * Attenuator (genetics), form of regulation in prokaryotic cells. == See also == * Attenuation distortion * Attenuator (disambiguation) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Attenuation (disambiguation)」の詳細全文を読む スポンサード リンク
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