As t increases, the red nullcline moves cyclically between the two dashed-red lines.
The fixed point (34) moves cyclically with the same frequency between the two corresponding extreme values.
Similarly to the linear case, as t progresses, the nonlinear v-nullcline moves cyclically between the two dashed-red curves corresponding to ± A in.
As t increases N v, t "moves" cyclically, generating lines parallel to N v = − v in between the lines N v + ( v ) = − v + A in and N v − ( v ) = − v − A in. (33).
In the limit f → 0, the limit cycle trajectory moves cyclically along the w-nullcline in between the points (34) with A t = ± A in = ± 1. From (34), v max / A in = ( 1 + α ) − 1, which coincides with Z ( 0 ) in (21).
As t increases, A t changes and the v-nullcline N v, t (32) moves cyclically, parallel to itself between the lines N v + ( v ) and N v − ( v ) (33) (dashed-red lines in Fig. 4) with frequency equal to 1.
As shown in Figure 6, in case that the robot is far from the handle, the robot needs to move rightward cyclically.
As remittance inflows are a large and stable source of foreign currency, they behave very differently from foreign private capital flows, which often move pro-cyclically, thus raising incomes during booms and depressing them during downturns (Ratha 2013).
Originally, hunter-gatherers moved, often cyclically, over comparatively large areas.
In the covert movement in Fig. 6, the DP operator must move successively and cyclically to the SPEC of the highest CP to make a co-indexation with nanuan in the matrix predicate position.
