8 to the Bar 8 to the Bar 8 to the Bar is a studio album released by Pete Johnson and Albert Ammons in 1941 on Victor 78rpm set P-69, record numbers 27504 through 27507. It was recorded in two sessions, May 7 and June 17, 1941. It was reissued by RCA Victor in 1952 as a 10-inch LP record as LPT-9. In the United Kingdom, this LP was released by the Gramophone Company as HMV DLP 1011. It was also released as a set of four 45rpm discs, WPT-14. The album peaked at number 2, in 1945, on Billboard's album chart. All titles
Quadratic mean diameter timber in a forest, because it has the practical advantage of being directly related to basal area, which in turn is directly related to volume. QMD can also be calculated as: formula_3 where BA is stand basal area, n is the number of trees, and k is a constant based on measurement units - for BA in ft and DBH in inches, k=0.005454; for BA in m and DBH in cm, k=0.0000785. Quadratic mean diameter In forestry, quadratic mean diameter or QMD is a measure of central tendency which is considered more appropriate than arithmetic mean for characterizing the group