Microsoft PowerPoint in Windows comes with a variety of different online templates and themes which can make your presentation look absolutely good and presentable to your audience. A PowerPoint ...
Abstract: Infectious diseases such as COVID-19 have severe impacts on both economy and public health in the US and the world. Due to the heterogeneity of virus spread, there are spatial variations in ...
Abstract: Hexagonal grids use a hierarchical subdivision tessellation to cover the entire plane or sphere. Due to the 6-fold rotational symmetry, hexagonal grids have some advantages (e.g.
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