Author: Christos Nicolaides; Demetris Avraam; Luis Cueto-Felgueroso; Marta C. González; Ruben Juanes
Title: Hand-hygiene mitigation strategies against global disease spreading through the air transportation network Document date: 2019_1_26
ID: l353fvsp_25
Snippet: is the number of infected individuals at time t = 2 weeks, L j is the geographic location of the j-th infected individual and L is the position of the geographic centre of the infection. The geographic centre is the centre of gravity (aka the centre of mass) for the locations of all infected individuals. To find the geographic centre, we first convert the latitude and longitude of each location L j from degrees to radians, and then into Cartesian.....
Document: is the number of infected individuals at time t = 2 weeks, L j is the geographic location of the j-th infected individual and L is the position of the geographic centre of the infection. The geographic centre is the centre of gravity (aka the centre of mass) for the locations of all infected individuals. To find the geographic centre, we first convert the latitude and longitude of each location L j from degrees to radians, and then into Cartesian coordinates using the formulas x L j = cos(lat L j π/180) · cos(lon L j π/180), y L j = cos(lat L j π/180) · sin(lon L j π/180) and z L j = sin(lat L j π/180).
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