Abstract: Systems and methods for optimizing detection of light-emissive components of a multi-fluorescence spectra. The method comprises obtaining a multi-fluorescence based spectra of a plurality of light-emissive components and determining a model of ensemble multi-fluorescence of said light-emissive components that are stochastically distributed.

Abstract: A hair extension device is provided, the device comprising: at least two panels, each panel having two strips of polyurethane; a plurality of hair having opposing ends, the first ends are sewn together and being situated between two strips, the second ends being freely movable; at least two apertures situated on opposing ends of the first panel; a string attached and secured to the apertures on the first panel; and a device for connecting the second panel to the first panel.

Abstract: A hair extension device is provided, the device comprising: a first strip of polyurethane having a first surface; a plurality of hair having opposing ends, the first ends are sewn together and attached to the first surface of the first panel, the second ends being freely movable; a second strip of polyurethane placed over the first ends of the plurality of hair and over the first panel and then heat sealed to form a panel; at least two apertures situated on opposing ends of the panel; and a string attached and secured to the apertures on the panels.