1974 Volume 36 Issue 3 Pages 399-409
In this paper, the relationship between the properties of sheaf bound by a tested binder (One raw type) and the straw compression pressures acted on clutch door was investigated by the use of canonical correlation analysis.
It was the purpose of this analysis to check the outline of discussion for three previous papers (II-IV).
Results of analysis were as follows.
(1) The correlation matrices for several correlated random variables (Fig. 1) with a number of individually sampled sheaf were calculated and discussed (Table 1-4).
(2) The selections and transformations of variables to express the tightness of bound sheaf by the specific value Pi were studied by basing upon reducing the first canonical correlation coefficients (Table 5-8).
(3) The changes of components of structure vector and normal weight vector of the first canonical composite variable for straw compression pressures PFΘ were studied to understand with the binding action timing of tested binder. The structures of this first canonical composite variable make it clear with correlations that the tightness of bound sheaf have close connection to the binding mechanism of binder and its action timing (Fig. 3, 4 and 6).
(4) Mean values of Pi make it clear quantitatively that the reducing of tightness of bound sheaf is most directly effected upon the water contents of sheaf and the size of sheaf under the condition of natural indoor drying (Fig. 2).
(5) Under this condition, the predict equations (1) of the first canonical composite variable U for the tightness of bound sheaf Pi (kg/cm2) and V for the straw compression pressures PFΘ (kg/cm2) were introdused. Composite values U and V for every sampled sheaf were calculated by those equations (Table 9 and Fig. 5).