A textured heat transfer label includes a textured portion formed from a highly cross-linked UV ink and a thermoplastic background ink. A first number of vertices is computed for an inside edge of the boundary transition region using a first tessellation level of detail of the inside edge. The computer receives a request to identify an internet protocol address for a domain name or vice-versa. Patterning tools and methods, as described, can be used to compensate for lens distortion from effects such as localized heating. The probe unit also comprises pressure adjustment means for reducing the pressure within said space and cleaning means for cleaning said probe when within said space. A part-stream from the purified synthesis gas stream, which is taken off downstream of the adsorber station but upstream of its cryogenic separation and is fed to the adsorber to be regenerated, is used as regeneration gas.