User:Vimal1947/sandbox

$1/undefined$ <-- polymer coatings-->


 * η = $fhealed⁄fvirgin$


 * η = $fhealed⁄fnon-healed$


 * $$H = \frac{n}{\sum_{i=1}^n \frac{1}{x_i}} = \frac{n}{ \sum_{i=1}^n \frac{\P_{iH-P_id} x_j}{ \frac{a_i+h_i}{x_i}}.$$


 * $$H = \frac{n}{\sum_{i=1}^n \frac{1}{x_i}} =

\frac{n}{ \sum_{i=1}^n \frac{\P_{H}-P_id}^n x_j}$$

{A\left( \frac{\prod_{i=1}^n x_i}{x_1}