If it is assumed that 14-year-olds drink at the mid-point frequency between 13- and 15-year-olds, then the proportion who have ever had a drink of alcohol would be 61% and of these 20% drink at least weekly and 26% at least monthly.
The space ( X, d ) has the mid point lower bound or the mid point upper bound property if any pair in X × X has a mid point lower bound or a mid point upper bound.
To convert this into a "dose" measure the mid points of the categories were used.
Average drinking frequency, annual drinking amount and average drinking quantity per drinking day were derived, using the mid-points of drinking quantities and the corresponding frequencies.
Without any a priori assumption on the smallness of the damage and assuming that the rod profile is symmetric with respect to the mid-point of the rod axis, we present a constructive diagnostic algorithm from minimal frequency data.
When the truss radius and sheet thickness are increased, the natural frequencies are increased initially and then decrease, while the vibration amplitudes at the mid-points of both the multi-span pyramidal and Kagome sandwich beams decrease.
As there was no epidemiological or practical interpretation of the between-farm association frequency, the choice of cut-off for this dichotomisation of the data was chosen at approximately the mid-point.
As such, the maximum acceleration of the beam need not occur at the mid-point.
The behavior of the mid-point rule and an associated reconstruction rule is numerically explored.
In this case the periodic beam is excited at the mid-point of one bay.
The lid slope is estimated at the mid-point.
