The self-consistent no parabolic calculation of a V-groove-quantum-wire (VQWR) band structure is presented. A comparison with the parabolic flat-band model of VQWR shows that both. the self-consistency and the nonparabolicity shift sub band edges. in some cases even in the opposite directions. https://www.kaliboat.com/product-category/dough-equipmentcommercial-donut-machines/