• A computer program for analysis of fuelwood harvesting costs 

      Harpole, G.B.; Rensi, G. (USDA Forest Service. Forest Products Laboratory, 1985)
      The fuelwood harvesting computer program (FHP) is written in FORTRAN 60 and designed to select a collection of harvest units and systems from among alternatives to satisfy specified energy ...
    • Investment opportunity: the FPL low-cost solar dry kiln 

      Harpole, G.B. (USDA Forest Service. Forest Products Laboratory, 1988)
      Two equations are presented that may be used to estimate a maximum investment limit and working capital requirements for the FPL low-cost solar dry kiln systems. The equations require data for ...