A lens assembly tool includes a lens receiving frame having a first surface, a positioning plate positioned on the lens receiving frame, and a pressing plate positioned on the positioning plate and having a second surface. The debug apparatus includes a processor for controlling the chip under test via a bridge device. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. By use of the toggle switch and various switching agents it is possible to reversibly switch the expression of a gene of interest between a stable \u201con\u201d state and stable \u201coff\u201d state or vice versa via transient exposure to a switching agent. The method involves selecting one of the plurality of quantization matrices in consideration of an at least one characteristics of an input image; transforming the input image; and quantizing the transformed input image using the selected quantization matr ix. Substantially all volatile organic contaminants are stripped in the first regenerator, and thus favorably destroyed in the first reaction furnace zone by virtue of higher local combustion temperatures and closer approach to oxidizing conditions.