Flow of foam through plain perforated and woven metal screens
نویسندگان
چکیده
منابع مشابه
Far-infrared bandpass filters from perforated metal screens.
Precision nickel printing screens are shown to be very useful as far-infrared bandpass filters. For a range of such regularly perforated sheets, transmission peaks of ~ 0.9 have been observed to lie at frequencies between 60 and 140 cm(-1). We found that this value shows little degradation by cascading several screens, but the overall filter Q value may be increased from 2.7 to a value of ~ 6. ...
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ژورنال
عنوان ژورنال: Journal of the Society of Dyers and Colourists
سال: 2008
ISSN: 0037-9859
DOI: 10.1111/j.1478-4408.1990.tb01260.x