Where R _ g is the gas constant ( 8.3144 J / ( mol�K ) in SI units ), molecular mass M _ { A } is expressed in units of kg / mol, and temperature " T " has units of K . Knudsen diffusivity D _ { KA } thus depends on the pore diameter, species molecular mass and temperature.
32.
Where d is the pore diameter, y is the surface tension, V _ \ text { A } is the vapor molar volume, R is the gas constant, T is the absolute temperature, W _ A is the instantaneous evaporation rate in mol / s, and W ^ \ circ _ A is the average evaporation rate of the free-standing liquid layer in mol / s.
33.
SLV ( pore diameter : 0.8 + /-0.1 nm ) and LDCV ( pore diameter : 1.4 + /-0.1 nm ) fusion pores during kiss-and-run have been shown to be big enough to allow for efflux of gamma-aminobutyric acid ( GABA ) and adenosine triphosphate ( ATP ), but are too small to release insulin in rat pancreatic beta cells.
34.
SLV ( pore diameter : 0.8 + /-0.1 nm ) and LDCV ( pore diameter : 1.4 + /-0.1 nm ) fusion pores during kiss-and-run have been shown to be big enough to allow for efflux of gamma-aminobutyric acid ( GABA ) and adenosine triphosphate ( ATP ), but are too small to release insulin in rat pancreatic beta cells.
35.
The properties of the membrane-such as average pore diameter and membrane thickness-can be finely tuned by changing the dimensions of the spinneret, temperature and composition of " dope " ( polymer ) and " bore " ( solvent ) solutions, length of air gap ( for dry-jet wet spinning ), temperature and composition of the coagulant, as well as the speed at which produced fiber is collected by a motorized spool.
