The dynamic frame protocol

A triphenodioxazine compound with near infra‐red absorption characteristics

“…A related phenomenon has been observed for an arylsubstituted thiapyrylium salt dispersed in poly(4,4-isopropylidenediphenyl carbonate). In this case a complex of the dye and the polymer forms a distinct crystalline phase, which results in a shift in the absorption maximum from 580 to 690 nm [14]. I thank Dr A J Nelson and Dr D E Sadler for helpful discussions.…”

Entropic analysis of color homogeneity

“…While conventional screws do not provide high mixing efficiency, the application of mixers designed to reorient the flow streamlines and improve mixing in the metering zone, such as pin-type mixers [16 -19], or the introduction of spatially periodic barriers in the screw to generate chaotic flow features [20], enhance mixing. There is a large number of distributive mixing devices for single screw extruders developed over the years designed primarily to impart substantial shear strain and also provide material reorientation [21][22][23][24][25][26][27].…”

Color mixing in the metering zone of a single screw extruder: Numerical simulations and experimental validation

“…Therefore inclusion of periodic obstacles in the channel, such as pins [10,11] or spatial periodic barriers in chaotic mixers [12], can enhance the mixing efficiency of a conventional screw. Other more complex designs allow imparting substantial shear strain as well as providing material reorientation [13][14][15][16][17][18][19].…”