A method for manufacturing a quartz glass crucible has a deposition step of depositing quartz powder on an inner wall surface of a bottomed cylindrical mold, while rotating the mold, and a melting step of obtaining the quartz glass crucible by vitrifying the quartz powder deposited on the inner wall surface of the mold by heating and melting the quartz powder. The coating only cures while running downhole. The value transfer request may include a value amount to be provided from a source user to a target user. New association rules are determined based upon the training data set, and the new association rules are outputted to a display of a computing device.