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The degree distribution P(k) of a network is defined to be the fraction of nodes in the network with degree k. The simplest network model, for example, the (Erdős–Rényi model) random graph , in which each of n nodes is independently connected (or not) with probability p (or 1 − p ), has a binomial distribution of degrees k (or Poisson in ...
Argonne National Laboratory was assigned by the United States Atomic Energy Commission (AEC) the lead role in developing commercial nuclear energy beginning in the 1940s. . Between then and the turn of the 21st century, Argonne designed, built, and operated fourteen reactors [21] at its site southwest of Chicago, and another fourteen reactors [21] at the National Reactors Testing Station in Idaho.