Abstract: The purpose of the present invention is to provide a crystal of rebaudioside D that exhibits high solubility in water. In one embodiment, the present invention provides a rebaudioside D crystal having a crystalline form ? that shows peaks in X-ray diffraction (CuK?: ?=1.5405 ?) at two or more positions selected from the group consisting of 2?=6.7±0.2 deg, 10.8±0.2 deg, 12.9±0.15 deg, and 22.2±0.2 deg.

Abstract: The purpose of the present invention is to provide a crystal of rebaudioside D that exhibits high solubility in water. In one embodiment, the present invention provides a rebaudioside D crystal having a crystalline form ? that shows peaks in X-ray diffraction (CuK?: ?=1.5405 ?) at two or more positions selected from the group consisting of 2?=6.7±0.2 deg, 10.8±0.2 deg, 12.9±0.15 deg, and 22.2±0.2 deg.

Abstract: In a terminal apparatus to which an SDH transmission mode is applied, there is a method including a pseudo-synchronization detecting step of detecting, by one transmitter-receiver, that a pseudo-synchronization state is established by finding in data the same pattern as a synchronization pattern in byte information, a pseudo-synchronization posting step of inserting, by the one transmitter-receiver, information to the effect that the pseudo-synchronization state is established in an overhead of an STM frame, and posting the information to the other transmitter-receiver, and a changed synchronization pattern transmitting step of changing a synchronization pattern into an additional synchronization pattern different from the synchronization pattern in the byte information, and transmitting the synchronization pattern obtained by the change from the other transmitter-receiver to the one transmitter-receiver.