As mentioned earlier, classical location is achieved by minimization of the temporal residua
. This is a very classical inversion method (Debski, 1997).
Then we can search for S phases arrival time residua
for different azimuthal directions.
The model attempted to describe the equinus deformity often observed in persons with Lisfranc and Chopart residua
by varying the height of the longitudinal arch of the foot as a proportion of residual foot length .
In this way, the different lengths of the MTP, TMT, and Lisfranc residua
could be modeled as illustrated in Figure 2(a), 2(b), and 2(c), respectively.
These were the residua
of a private performance--held five days before the opening and documented in the video--for which Sierra paid ten local Iraqi immigrants an undisclosed sum ("as little as possible," he told me) to stand still, swathed in plastic sheeting, while the jets were turned on them.