eumelanin structure to change so that it is perceived as a golden colour. Chemical analysis proved that the late colour change Silver Persians did not have phaeomelanin pigment present. BIMETALLIC ORIENTAL SHORTHAIR This is an Oriental Shorthair, genetically a chestnut silver spotted tabby and white, but with with non-silver patches resulting in a "merle" type effect. This looks similar to the bimetallic effect seen in the Siberians. Kotchera Trail Blazer of San-Toi was bred by Wendy Heidt, a Siberian breeder and is being investigated by Pat Decano (CasaDecano Orientals, Siamese and Colorpoint Shorthairs). Pat has also considered chimerism as a possible explanation. COLOURPOINTED AND MASKED CATS Copyright 2002-2015, Sarah Hartwell The colourpoint pattern is a form of albinism and is known as the "Himalayan pattern" although it's more often called "Siamese" pattern by cat lovers. It is found in a number of mammals including rabbits and goats from the Himalayas region
väljatõmbeventilatsioonisüsteem. 13.2.3.2 Korteripõhise agregaadiga mehaaniline sissepuhke- väljatõmbeventilatsioon Mehaanilise sissepuhke-väljatõmbeventilatsiooni väljaehitamise eeltingimuseks on hoonepiirete piisav õhupidavus. Kui εST on soojustagasti temperatuuri suhtarv, siis reaalses situatsioonis läbib soojustagastit vaid kindel osa õhuvooluhulgast. Seega saab tegeliku soojustagasti efektiivsuse leida valemist 13.2 (Heidt 2006). ninf st ,teg st ( 1 ) (13.2) n εst, teg tegelik temperatuuri suhtarv, -; εst soojustagasti temperatuuri suhtarv, -; ninf infiltratsioonist tingitud õhuvahetuskordsus, h-1; n kogu õhuvahetuskordsus, h-1. 241
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