Air is an important condition for human activities and survival,and its quality is closely related to the quality of life and level of health for the people.In
In this work, we show that when there is insufficient equipment for detecting a disease whose prevalence is <em>t</em>% in a sub-population of size <em>N</em>,
A novel method for the computation of the motion of multi-body systems is proposed against the traditional one, based on the dynamic exchange of attraction forc
Urban freight transport is a very important part of the logistics chain. Creating the right conditions for the economic and commercial development of urban tran
The particle physics Standard Model involves three charge 0 neutrinos, three charge e leptons, three charge (2/3)<em>e</em> quarks, and three charge <span style