Semi chemical pulping processes, using both acid and neutral sulfite liquors, were ap!)lied to the following six Arkansas Delta hardwoods: black willow, southern cottonwood, American elm, sugarberry, green ash, and bitter pecan. Pulping conditions for yields of 75 to 80 percent were determined and the properties of both the pulps...
Parallel solutions for two classes of linear programs are
presented. First we parallelized the two-phase revised simplex
algorithm and showed that it is possible to get linear improvement in
performance. The simplex algorithm is the best known algorithm for
solving linear programs, and we claim our result is the best...
This work is part of a larger project dealing with
nonprocess element (NPE) behaviour in chemical pulping
processes. Nonprocess elements are defined as those
elements which are not essential to the chemical
process, i.e. are neither active pulping chemicals
(e.g., NaOH and Na2S in the kraft process), nor
compounds present...