According to one embodiment, an X-ray diagnostic apparatus comprises a first imaging system, a second imaging system, a first support member, a second support member, control circuitry, and a reconstruction circuitry. Each of the plurality pair of loop forming rollers is controlled in a manner such that a loop is formed between each of the plurality pair of loop forming rollers and the pair of registration rollers. The dispatch order data structure corresponds to a queue. The present invention also uses a document database and an anticipated search term database wherein documents and anticipated search terms are correspondingly assigned to a respective topical category. The backwash pulsing may be determined by the type of filter medium andor the condition of the filter medium. 0 to about 12 using membrane electrodialysis to solubilize the whey proteins and to release the flavoring compounds and thereafter passing the pH-adjusted composition to an ultrafiltration membrane having a molecular weight cutoff up to about 50,000 Daltons under conditions at which the flavoring compounds pass through the membrane, leaving the retained whey protein material with improved flavor.