Stepwise stress-relaxation experiments in unconfined compression were conducted for the samples, and sample-specific models were fitted to the experimental data in order to determine values of the model parameters.
It was observed that the behavior of the corneal stroma under stepwise stress-relaxation compression is similar to that of the other soft hydrated tissues and is composed of an immediate stiff response, a transient relaxation phase, and a final steady-state stage.
Among different segmentation results for stepwise increasing T2 relaxation times, this cut off showed best agreement with visual delineation of infarction on T2-w imaging and with histological 2,3,5-triphenyltetrazolium chloride stain in selected subjects.
The name "temperature jump" is usually reserved for the relaxation technique in which a stepwise temperature perturbation is achieved by passing a large electric current through the solution under study and thus heating it almost instantaneously; another method is to apply ultrasonic radiation to the system.
The value of this new method lies principally in its applicability to unstable systems, where time-dependent relaxation processes limit the utility of conventional stepwise methods that employ a series of isothermal holding periods.
In the process of BauA structure modeling, default restraint settings were applied, and a rigorous relaxation protocol involved 2000 simulated annealing relaxation cycles (4.4 ps stepwise warming from 0 1000 K, followed by 19.2 ps stepwise cooling back down to 300 K, all done through Charmm force field and charges).
The stepwise analysis indicated that the remaining benefit after residual stress relaxation was due to geometry improvement and strain hardening.
Figure 4c-iv shows the repetitive stress strain measurements for the phase-3 NW during stepwise increase of the shear strain followed by the subsequent relaxation.
Further truncation from the large subunit results in a stepwise loss of activity up to Glu-519, truncation deficient in relaxation activity at all.
Matthews et al. (2002) discuss the characteristic of Brownian relaxation oscillator and BPT distribution in detail and show the physical interpretation of parameters and the effect of stepwise stress change on recurrence time.
