  The vesiculation process was examined in the lipid-detergent solution
(dimyristoyl-sn-glycero-phoshatidylcholine/octaethylleneglycol n-dodecyl
ether/water), using small-angle neutron scattering experiments \cite{1}. When
observing vesiculation proceeds from rod-like micelles to unilamellar vesicles,
the transformation is induced by jump-like temperature increase and a monotonic
increase in detergent concentration. Our numerical estimations of the vesicle
shape parameters (the elasticity coefficients and its fraction on a macroscopic
scale) are based upon the area-difference elasticity model \cite{2, 3}. Thus,
we composed the numerical Monte Carlo method, which connects the macroscopic
and microscopic scales by the concept of self-avoiding random surfaces.
