It was observed that the sum of cycles to failure at this damaging loading was more than 5 times the fatigue life at constant amplitude.
For one-way cycles having multiple paths, the cycle flux was calculated as the sum of the cycle flux for the paths.
Since feedback is one of the ways that an organism uses to regulate different biological networks, we decomposed the central cyclic part into relevant cycles, where a relevant cycle is defined as a cycle that is not the sum of shorter cycles [122].
Similarly, <img src="http://journals.plos.org/plosone/article/asset?id=info?doi/10.1371/journal.pone.0016578.e011.PNG" class= inline-graphic"/> The net flux is defined as the sum of the cycle fluxes.
In the other direction, if all simple cycles have the same average, call it c, then the same holds for any periodic cycle because it can be broken into segments between repeated vertices which can be rearranged to make a sum of simple cycles, and the value of the co-cycle is simply the sum because it is elementary.
In Fig. 1, total order cycle (T) is equal to the sum of order cycles of every supplier (T i ) and at the time one supplier's inventory is used up, the next supplier's shipment would arrive in.
We find that the total fatigue life (sum of fatigue cycles before and after corrosion) exceeds that of the virgin samples, provided that the initial fatigue cycle has consumed more than half of life solely fatigued in air.
Study design: Ostensibly healthy women were monitored during a sum of 326 cycles.
The condition under which fatigue damage accumulation is needed in contrast to the linear sum of fatigue cycles will be left for the future.
It was shown that fatigue cracks with depths of several tens of micrometers were initiated in the early stage of the fatigue test and fatigue life could be estimated as a sum of the cycles for crack initiation of 100 μm in depth and those for growth to 3 mm.
Thus, the experimental observables, such as the net flux, the net ionic current, and the CRw-i, can be calculated as weighted sums of the cycle fluxes through taking into account the stoichiometric numbers assigned for each cycle.
