A method of performing overlap-and-add length for zero-padded suffixes. The downstream zone of the main furnace is thus used to remove both gases coming from the main glass and gases coming from the auxiliary glass, in order to finish melting the batch stones and impurities contained in the auxiliary glass and to homogenize the two glass streams from their redox standpoint, when this is necessary. A bloom encoder circuit is also disclosed for identifying amounts of fixer to be deposited adjacent to dot locations containing ink. The system receives patient data and data related to osteoporosis. Some routing system may include only a packet switched router. Search criteria relating to the pre-operative patient may also be received to inform the analysis.