SPIS, for Spacecraft Plasma Interaction Software, is a rich and advanced 3D modelling tool for the spacecraft-plasma interactions, able to model a large set of phenomenon relative to spacecraft charging.. SPIS includes an advanced 3D electrostatic plasma solver based on a unstructured mesh and able to dynamically model detailed sheath structures around complex and realistic …

Allstream is a leader in business communications throughout North America. Founded over 170 years ago in parallel with Canada’s first transcontinental railroad, Allstream continually re-invented itself to remain a leading provider of business communication services.