cosine law

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cosine law

[kō′sīn]

a rule that optimal irradiation occurs when the source of radiation is at right angles to the center of the area being irradiated.

diffusion

1. Scattering of light passing through a heterogeneous medium, or being reflected irregularly by a surface, such as a sandblasted opal glass surface. Diffusion by a perfectly diffusing surface occurs in accordance with Lambert's cosine law. In this case, the luminance will be the same, regardless of the viewing direction. 2. The passive movement of ions or molecules through a medium or across a semi-permeable membrane (e.g. the ciliary epithelium) in response to a concentration gradient until equilibrium is reached. It is one of the three mechanisms that create aqueous humour. See diffuse light; diffuse reflection; ultrafiltration.

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diffusion law			corybantism Corydalis corymbiform Corynebacteriaceae corynebacterial Corynebacterium Corynebacterium diphtheriae Corynebacterium equi Corynebacterium minutissimum coryneform Corynespora corynetoxins Corynocarpus laevigatus Corynosoma Corythaeola cristata Corythaixoides coryza coryza spasmodica coryza virus coryzavirus Corzide COS Coscoroba Cosgrove clamp COSHH cosine law Cosmeceutical Cosmegen cosmesis cosmetic cosmetic acne Cosmetic Dentistry cosmetic dermatitis cosmetic orthodontics Cosmetic Surgery Cosmetic Surgery Addiction Cosmetic Underclass cosmic radiation cosmic rays cosmid Cosmocephalus obvelatus cosmopolitan cost cost analysis cost cap cost center cost containment cost control cost effective cost function cost model			Cosimo de' Medici Cosimo de' Medici Cosimo de' Medici the Elder Cosimo de'Medici Cosimo I Cosimo I Cosimo I de' Medici, Grand Duke of Tuscany Cosimo I de' Medici, Grand Duke of Tuscany Cosimo il Vecchio Cosimo Medici Cosimo the Elder Cosimo the Elder Cosimo Tura COSIN Cosina Cosina Cosinage cosine cosine cosine Cosine (trigonometric function) Cosine (trigonometric function) Cosine All Sine Tangent Cosine curve Cosine curve Cosine curve Cosine curve cosine emission law Cosine formula cosine function cosine law COSINE Network's Central Information Service for Europe Cosine of an Argument in Degrees Cosine of Angle X = Adjacent Side Length / Hypotenuse Side Length Cosine plus i COSINE Project Management Unit cosine pulse Cosine relation Cosine rule Cosine series Cosine series Cosine theorem Cosine wave Cosine wave Cosine wave Cosine wave cosine winding Cosine-Modulated Filter Bank Cosine-Modulated Filter Bank Multi-Carrier Modulation cosine-squared pulse cosines cosines Cosines law Cosines, Law of cosiness COSINOR Cosinus Cosinus Cosinus COSIP COSIPA

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