LEGALDISCLAIMER Thisreportwas preparedas 3n accountof worksponsored by an agencyof the UnitedStatesGovernment.Neitharthe UnitedStatesGovernment norany agencythereof,nor anyof theiremployees, norany of theircontractors, subcontractors or theiremployees, makesanywarranty,expressor implied, or assumesany legalliabilityor responsibility for the accuracy, completeness, or anythirdparty'suseor the results of suchuseof any information, apparatus, product, or process disclosed, or represents that itsuse wouldnotinfringe privatelyownedrights. Referencehereinto anyspecific commercial product, process, or serviceby tradename, trademark, manufacturer, or otherwise, doesnotnecessarily constitute or implyits endorsement, recommendation, or favoringbythe UnitedStates Government or anyagency thereofor its contractors or subcontractors. Theviewsand opinions of authorsexpressed hereindo not necessarily state or reflectthoseof the UnitedStatesGovernment or any agencythereof. Thisreporthasbeenreproduced fromthe bestavailablecopy. Availablein papercopyandmicrofiche.