Research situation of eco-design is analyzed,and then thoughts and methods of eco-design are discused.The eco-design includes packaging modularization,demateria
One of the key problems in collaborative geometric modeling systems is topological entity correspondence when topological structure of geometry models on collab
A new geometric method to prove the total positivity of UE spline basis was proposed.UE spline basis is a kind of basis defined over algebraic-trigonometric uni