Using lower irradiance at the beginning of polymerization process can prolong the pre-gel stage, causing the molecules to slide and acquire new positions and orientations slowly, and compensating for the polymerization stress.
As discovered by the Italian-born French astronomer Gian Domenico Cassini in 1692, the Moon's spin axis precesses with respect to its orbital plane; i.e., its orientation changes slowly over time, tracing out a circular path.
At moderate deformation temperature, the development of crystalline orientation increases slowly at a low stretch ratio followed by a rapid rise in the degree of orientation as a result of crystal rotation and crystal slip, while the amorphous chains deform in pseudo-affine manner.
This intrinsic vector is assumed to change its orientation only slowly over time, and it consequently does not track the instantaneous direction of motion, which will fluctuate around θ.
Specifically, Gibson noted that during the prolonged observation of tilted lines, the line orientation would drift slowly toward the nearest cardinal (horizontal or vertical) axis.
Then bound molecules in sideways orientation are more slowly transferred back to the end-on orientation, making room for further binding in end-on state.
Since, flow-induced orientation decays much more slowly for long chains than for short chains, oriented high molecular weight species play a prominent role in formation of the stretched sections, where shish originates.
In this orientation, the mouse was slowly lowered vertically while passing over the wire lid horizontally, resulting in a diagonal descent, while the wire lid remained within the mouse's field of view throughout.
PS-b-PMMA films on gold substrates showed metastable vertical domain orientation that was attained more slowly on rougher substrates.
Upon several seconds of viewing lines tilted slightly away from vertical, their apparent orientation appeared to rotate very slowly, becoming slightly more vertical over time.
