The RSPI of the DE material at different swelling stages is illustrated in Figure 6.
That is why the value of the RSPI is very low at this stage.
Therefore, the elastic deformation energy stored in the hollow cylinder and the RSPI can be expressed as
A dataset is provided as supplementary materials, which includes the experimental results of free swelling ratio, EDS data, and swelling pressure of the DE material and the values of RSPI calculated.
Responses on monthly sales, customer traffic and other questions are combined to produce the Retail Sector Performance Index (RSPI).
The RSPI for January was 31.9%, down from the 44.6% recorded in December.