The Naval Ocean Systems Center is extending the scope of previous efforts in the area of evaluating English text analysis systems and is seeking to refine the methodology in order to obtain per formance benchmarks on an informat ion ext ract ion task for recall , precision, overgeneration, and fallout for a variety of systems. The methodology is also intended to enable the collection of qualita...

Introduction: Weather significantly affects the distribution of fallout radiation resulting from a nuclear detonation. Prior detonation models have either utilized “typical” day for city interest or chosen conditions that optimize radiation. However, aid emergency planners should utilize representative weather to capture most likely region interest. Method: Fallout an improvised device in Atlan...

Naturally occurring radioactive materials (NORMS) and fallout 137Cs were estimated in surface soils from the highly mineralized Singhbhum region of Eastern India. The activity concentrations varied from 50.67-109.14 Bq/kg (238U), 48.12142.55 Bq/kg (226Ra), 28.73-89.78 Bq/kg (232Th), 494.84-1121.36 Bq/kg (40K) and 1.8-7.48 Bq/kg (137Cs). Correlation between radionuclides was studied. 232Th/238U ...