The factor-2 loading weight for clay content was due, almost entirely, to negative carbonate contribution.
The factor-1 loading weights for silt calibration were similar to those for clay content: mostly kaolinite and negative carbonate; however, the factor-2 loading weight had a very high negative contribution from -OH vibrations in organic matter, as indicated by the strong, broad negative band in the 3600-3000 [cm.
There was a very strong increase in the loading weight for factor-1 for gibbsitc and organic matter (both negative) and a decrease in (negative) quartz for clay content (Fig.
The increased effect of fine grinding was apparent in the factor-1 loading weight for sand content (Fig.
The second loading weight resulted in a strong kaolinite peak with fine grinding.
The first clay loading weight for the <2-mm EP samples (Fig.
Kaolinite and carbonate peaks in the loading weight for PC-1 increased in negative intensity by fine grinding, as did quartz and organic matter in factor-2.
The PLSR loading weights (measured as absorbance values, arbitrary units) for factor-1 in the Qld PSD calibration cross-validations (Fig.
Heavy-duty vehicles with a maximum loading weight
of more than 2,500 kg and designed to meet specific social needs (to take wheelchairs or to seat seven or more people), as well as light commercial vehicles (Class N1) will have until 1 September 2010 to comply.