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3-Threshing drum speed: Peripheral drum speed was calculated:
S = (22 *n *d) / (7*60)
Where:
S= Peripheral drum speed, m/s n =rotational speed, (r.p.m).
d=Threshing drum diameter, m
4-Moisture content; dry basis (M.C.
db
%): The moisture content of
plant stalks was measured by taking random samples from stalks and
dried in air forced electric heater at 105
o
C at atmospheric pressure for
ten hours. The moisture content was calculated according to the
following equation:
Mc
db
=
Where:
Mc
db
= Moisture content, dry basis %.
M
wet
= Mass of wet samples, g. and
M
dry
= Mass of dry samples, g.
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