The present invention provides an anti-stilbene antibody. Rather than depend upon an administrator to manually distribute and manage certificates, the system self-generates certificates, distributes the certificates to appropriate servers or other parties, and transitions from old certificates to new certificates in a well-defined manner that avoids breaking functionality. A second seal encloses the electrode assembly nearer the first seal. Re-extraction of a design can occur at granularities smaller than a net. As such, these analyte elements can be identified and quantified by optical emission spectroscopy or mass spectrometry. The coefficient computing unit computes a correction coefficient for each of the plurality of positions, according to a distance from the light source to each of the plurality of positions and the luminance at each of the plurality of positions.