The sweatband head support’s unique features: Being designed specifically to be attached to almost any adjustable headrest without the need with any extra or special accessories. The array substrate further includes a common electrode. And, some other tests among them are done to evaluate benefits of re-burning the exhausts. The results may be used for diagnostic and treatment of patients as well as assessment of viral and bacterial population identification. The calculating section calculates the evaluation parameter in consideration of unevenness visibility for both color and luminance. A flocculation point is determined corresponding to an inflection point in the fractional asphaltene precipitation for each concentration of titrant.