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Caltech scientists have found a fast and efficient way to add up large numbers of Feynman diagrams, the simple drawings ...
Dynamic spectrum access is a potential solution to the long-standing radio spectrum scarcity and usage inefficiency issue, for which spectrum sensing is one of the key challenges. In this letter, we ...
In order to improve the computational efficiency of structural reliability analysis under random and interval uncertainties, a hybrid sampling method is proposed in this paper. The basic idea of the ...
In this cross-sectional study, a stratified random sampling method (figure 1) was used to select 3000 participants from the population of Koriyama City, Fukushima Prefecture, Japan, using the Japanese ...
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