13] investigated the uniaxial ratcheting behavior of polytetrafluoroethylene (PTFE) with different loading rate, mean stress
and stress amplitude at ambient and elevated temperatures, respectively.
When a cycle fatigue load is applied, the residual stress does not affect the stress amplitude, but it gives a shift to the mean stress
About a third of respondents (31%) reported tension-type headache, with a mean of 2 headache days per month and a mean stress
level of 52.
Table 3: Comparison of mean stress
effects on morphological traits measured basil.
6% improvements were found in the mean stress
of the femur, mean micromotion of the interface and wear index of insert, respectively.
Private sector managers reported an overall mean stress
level of 3.
The alternating stress was varied to find the fatigue life, while the mean stress
was kept constant.
The control group's mean stress
score increased, and there was a significant difference in mean stress
levels between the two groups after controlling for pre-experimental values.
com)-- This week is Thanksgiving 2011 - a time of reflection and gratitude, and a time to enjoy life, but for many it would also mean stress
To the important loading case of the machine components can be included the cyclic load, when mechanical stress changes cyclically around the mean stress
with some amplitude.
12 /PRNewswire/ -- While most parents think of back-to-school as an exciting time marked by new backpacks, school supplies and outfits, it can also mean stress
and anxiety for many children.
Kids brought up in a harsh environment produce a lot of cortisol, a particularly mean stress
hormone that interferes with thought, decision-making and responsible behaviour.