Muffin-tin approximation Muffin-tin approximation The muffin-tin approximation is a shape approximation of the potential well in an crystal lattice. It is most commonly employed in quantum mechanical simulations of the electronic band structure in solids. The approximation was proposed by John C. Slater. Augmented plane wave method (APW) is a method which uses muffin-tin approximation. It is a method to approximate the energy states of an electron in a crystal lattice. The basic approximation lies in the potential in which the potential is assumed to be spherically symmetric in the muffin-tin region and constant in the interstitial region. Wave functions (the augmented
Arena Naucalpan 15th Anniversary Show Arena Naucalpan 15th Anniversary Show The Arena Naucalpan 15th Anniversary Show was a major annual professional wrestling event produced and scripted by "Promociones Moreno" in conjunction with the professional wrestling promotion Consejo Mundial de Lucha Libre (CMLL), which took place on December 16, 1992 in Arena Naucalpan, Naucalpan, State of Mexico, Mexico. As the name implies the show celebrated the 15th Anniversary of the construction of Arena Naucalpan, "Promociones Morenos" main venue, in 1977. In 1996 "Promociones Moreno" became International Wrestling Revolution Group (IWRG), maintaining the annual Arena Naucalpan Anniversary tradition. The show became IWRG's longest running show and is