Abstract: A method for measuring indentation resistance includes: obtaining a first curve indicating a yield shear stress in a depth direction of a raceway surface of a material forming a rolling bearing in a state before the raceway surface is subjected to machining, a second curve indicating a static shear stress in the depth direction of the raceway surface in a state in which the raceway surface is subjected to the machining, and a third curve indicating a static shear stress in the depth direction of the raceway surface in a state in which rolling elements are in contact with the raceway surface and a static load is applied to the raceway surface; and obtaining a correlation between an area and an indentation depth of the raceway ring by defining a region surrounded by exceeding the first curve and the second curve and falling below the third curve as the area.

Abstract: This non-oriented electrical steel sheet includes a base material having a chemical composition including Si: 3.7 to 4.8%, wherein a recrystallization rate is less than 100% in terms of an area fraction, the following Formula (i) and Formula (ii) are satisfied, and the tensile strength is more than 700 MPa. 4.3?Si+sol. Al+0.5×Mn?4.9??(i) (B50(0°)+2×B50(45°)+B50(90°))/4?1.

Abstract: A control method, for a transaction management server of a transaction administrator administrating commodity transactions between a seller and a buyer, comprises transmitting to a forwarder terminal an instruction to transport a commodity received along with price information of the commodity from a seller terminal; writing the price information into a database; receiving from the forwarder terminal and writing into the database the number of the waybill issued when the commodity is loaded into transportation by the forwarder; transmitting to the seller terminal information indicating that the transaction administrator has made an alternative payment for the commodity; receiving from the forwarder terminal and writing into the database the number of the waybill put on the commodity having arrived at a destination and commodity identification information; receiving the commodity identification information of the commodity delivered to the buyer from the forwarder terminal, and transmitting to a buyer terminal

Abstract: A control method, for a transaction management server of a transaction administrator administrating commodity transactions between a seller and a buyer, comprises transmitting to a forwarder terminal an instruction to transport a commodity received along with price information of the commodity from a seller terminal; writing the price information into a database; receiving from the forwarder terminal and writing into the database the number of the waybill issued when the commodity is loaded into transportation by the forwarder; transmitting to the seller terminal information indicating that the transaction administrator has made an alternative payment for the commodity; receiving from the forwarder terminal and writing into the database the number of the waybill put on the commodity having arrived at a destination and commodity identification information; receiving the commodity identification information of the commodity delivered to the buyer from the forwarder terminal, and transmitting to a buyer terminal