The Nevada Nuclear Waste Storage Investigations (NNWSI) project is investigating the volcanic tuff beds of Yucca Mountain, Nevada, as a potential location for a high-level radioactive waste repository. This report describes a test method (Phase II) that has been developed to measure the release of radionuclides from the waste package under simulated repository conditions, and provides information on materials interactions that may occur in the repository. The results of 13 weeks of testing using the method are presented, and an analog test is described that investigates the relationship between the test method and expected repository conditions.

Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activitiesdirected toward seeking alternative cathode materials to NiO for molten carbonate fuel cells.

Quarterly report on activities of Argonne National Laboratory's Nuclear Technical Programs, including management of nuclear waste.

This report describes logic programming approaches to two graph theoretical problems relevant to reactor and logic circuit analysis: those of cut-set verification and subsystem detection.