[8] R. Ulichney: “The void-and-cluster method for dither array generation” (1993). ↑
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Guar gum, a plant colloid, costs less than agar and is better suited for growing thermophilic bacteria, but is also more difficult to handle, being more viscous and less transparent. The bacterial polysaccharide xanthan is cheaper as well but forms weaker jellies that, as with carrageenan, might result in puncturing its surface. Other colloids, like alginate (from brown seaweed) and gellan gum (from a bacterium), don’t set solely based on temperature and require additives for gelation. These additives might interfere with microbial growth and make the preparation of those jellies less handy than agar plates.
Спортивный арбитражный суд оценил решение отстранить российских лыжниковСпортивный арбитражный суд назвал дискриминацией отстранение российских лыжников。WPS下载最新地址对此有专业解读