Abstract: Automated drive system comprises a control device. The control device executes run control processing of the automated drive vehicle provided to a driverless transportation service. The run control processing includes carriage porch control processing. The carriage porch control processing is performed when a PUDO position of a user corresponds to a carriage porch of a facility including a zone for run and a zone for PUDO. In the carriage porch control processing, it is judged whether or not there is an empty space in the zone for PUDO. If it is judged that there is no empty space, it is judged whether or not a quick PUDO of the user in the carriage porch is expected. If it is judged that the quick PUDO is expected, a target PUDO position to perform a PUDO action of the automated drive vehicle is set to any position in the zone for run.

Abstract: A grid of the present invention is used with an X-ray detector to take an X-ray image of a subject. The grid is configured by alternately arranging a plurality of X-ray absorption parts and a plurality of X-ray transmission parts and adapted to be externally provided adjacent to a surface of the X-ray detector. When the grid is viewed in a plan view in a state that the grid is provided adjacent to the surface of the X-ray detector, at least at least a part of the X-ray absorption part overlaps with an imaging part of the X-ray detector and an overlapping state of the X-ray absorption part and the imaging part transitions. Further, the grid includes the plurality of X-ray absorption parts having the same overlapping state with the corresponding imaging parts in a predetermined cycle.

Abstract: Austenitic cast iron has excellent corrosion resisting properties and has been preferentially used in machines or machine parts intended for handling corrosive fluids such as seawater. Cases, however, have been reported of machines or machine parts made of austenitic cast iron failing after they had been put to prolonged service at relatively low temperatures. The present inventors have located stress corrosion cracking at the cause of this failure.In accordance with the present invention, methods of using salt water resisting machines or machine parts made of austenitic cast iron that has graphite in the form of spheroids or nodules and which comprises by weight %: C.ltoreq.3.0, Si=1.0-3.0, Mn.ltoreq.1.5, P.ltoreq.0.08, Ni>24-28%, Cr.ltoreq.5.5 and the balance being Fe to minimize stress corrosion are provided.