The document discusses active surfaces and their integration, highlighting the function of surface isolation and the degree of perforation. It contrasts flat and 3D structures in the context of integrated surfaces. Overall, it emphasizes the relationship between surface design and functionality.

1. Active Surfaces

2. Integrated surfaces > Function

3. Surface Isolation to Integration

4. Degree of perforation

5. Flat to 3D

6. Flat to 3D

7. Structure integrated surfaces