... Pages Encyclopedia of Physical Science and Technology EN002G-61 May 19, 2001 19:33144 Biomass, Bioengineering of The energy value (heat of combustion) of petroleum isabout twice that of biomass ... a fraction of the landnow devoted to agriculture and animal husbandry. (There P1: FPP 2nd Revised PagesQu: 00, 00, 00, 00 Encyclopedia of Physical Science and Technology EN002C-64 May 19, ... body for an intended applica-tion and for a planned time period.” The development of 173 P1: GLM Revised Pages Encyclopedia of Physical Science and Technology EN002G-62 May 19, 2001 19:27190Biomaterials,...