2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/198337Various properties of heavy-light mesons are determined, including decay constants, the $B_{B}$-parameter, and the Isgur-Wise function. The heavy (bottom) quark is simulated with the static, NRQCD and/or (fixed-velocity) lattice-HQET effective theories, using optimally-smeared sources as produced by the ``Maximal Operator Smearing Technique''.To appear in the proceedings of the Lattice '95 conference. 4 pages, uuencoded-compressed PostScript fileHigh Energy Physics - Lattice$B$ Meson Matrix Elements from Various Heavy Quark Effective Theoriestext