He has developed what he describes as a percolation model for word puzzles. In his paper, Hartmann writes that he came to the idea of a percolation model for word puzzles while working on one himself.

United Way Worldwide introduces innovative rainwater percolation wells model for sustainable water conservation in Bengaluru's IGMF Park.

Li metal batteries harbor the potential to attain the ambitious target of 600 Wh kg-1, addressing the burgeoning energy ...

The main ecosystems are ancient deciduous Colchic rainforests and wetlands, percolation bogs and other mire types of the distinct Colchic mire region. The extremely humid broad-leaved rainforests ...