Report on the 3rd Pilling Round Trial of IWTO Pilling Working Group ...
Report on the 3rd Pilling Round Trial of IWTO Pilling Working Group ...
Report on the 3rd Pilling Round Trial of IWTO Pilling Working Group ...
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<str<strong>on</strong>g>Report</str<strong>on</strong>g> <strong>on</strong> <strong>the</strong> 3 rd <strong>Pilling</strong> <strong>Round</strong> <strong>Trial</strong> <strong>of</strong> <strong>IWTO</strong><br />
<strong>Pilling</strong> <strong>Working</strong> <strong>Group</strong> DTM<br />
� An obvious relati<strong>on</strong>ship exists between C<strong>on</strong>fidence Limit and<br />
pilling grade, which basically is that testing precisi<strong>on</strong> is high<br />
when pilling grades are extremely high or extremely low;<br />
testing precisi<strong>on</strong> is low when pilling grades are between 2~3.5<br />
Grade.<br />
95%C<strong>on</strong>fidence Limite<br />
1.5<br />
1.0<br />
y = -0.2023x 2 + 1.0225x - 0.2413<br />
R 2 0.5<br />
0.0<br />
= 0.5894<br />
0.0 1.0 2.0 3.0 4.0 5.0<br />
Mean <strong>Pilling</strong> grade<br />
Figure 3. Relati<strong>on</strong>ship between C<strong>on</strong>fidence<br />
Limit and <strong>Pilling</strong> Grades in 2010/11 <strong>Round</strong> <strong>Trial</strong>
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