Barrer

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Barrer 

A unit of oxygen permeability of a contact lens material. Symbol: Dk. It is equal to the product of the diffusion coefficient D of oxygen through the material (i.e. the speed at which oxygen molecules pass through the material) and the solubility k of oxygen in the material (i.e. the number of oxygen molecules that can be absorbed in a given volume of material). See oxygen permeability; oxygen trans-missibility.
References in periodicals archive ?
A partir del modelo argentino se formaron las barras bravas a finales de los ochenta en Chile, Ecuador y Peru.
Mr Millar said: Ysgol Pen Barras is a fantastic school but teachers and pupils achieve high standards in spite of the poor quality accommodation on site - it cannot be acceptable that pupils in 21st century Wales are being educated in rotting classrooms.
The were impressed with the quality of singing by Ysgol Pen Barras' two soloists, Megan Williams and Dewi Wykes.
O metodo de mapeamento da mancha cega nao permitiu saber em que regiao da mancha cega as barras incidiam, se na regiao central ou periferica.
Brewing Co., Top Out Brewery and 71 Brewing." The Barras Art and Design Centre, located just behind the Barrowlands Ballroom music venue, is described as "a truly unique space in the heart of the East End of Glasgow"and hosts a variety of events.
Foramanalisadas 19 marcas de barras de cereais, e que se apresentam nas categorias light, diet e convencional, das marcas: Bio2, Banana Brasil, Beauty bar, Corpo e sabor, Fitfibras, Hershey's, In Natura, Kellog's, Koober, Linea, Naturale, Nestle, Nutry, Quaker, Ritter, Tia Sonia, Taeq, Trio e Womancare, totalizando 125 sabores diferentes.
Fortunately for Barras he came through that relatively unscathed, and at The Cluny he cut an imposing figure on stage.
Interestingly, the name Barras Bridge derives from a small bridge that spanned the now long-gone, once beautiful, treelined valley called Pandon Dene.
The Surrey five-piece were playing the first of two sold-out shows at the Barras, a regular show before the next night's run through their debut album Take Off Your Colours to mark it's 10th anniversary, and it felt much more like a snapshot of where the band are at.