The next step in the model is the consideration of the simultaneous usage of mobile services by mobile users. The simplest approach is used: the peak demand of users is built from adding the data rates required for each of the services, weighted by the penetration of each of them.
The Rosenbergs, former members of the American Communist Party, were implicated by Ethelâs brother-in-law, David Greenglass and a Philadelphia chemist, Harry Gold, who, after admitting to their own espionage activities, served as the primary witnesses in the trial.
On June 17, 1950, Julius Rosenberg was arrested on suspicion of espionage after having been named by Sgt. David Greenglass, Ethel's younger brother and a former machinist at Los Alamos, who also confessed to passing secret information to the USSR through a courier, Harry Gold. On August 11, 1950, Ethel was arrested.