Abstract: The disclosure is intended to provide a martensitic stainless steel seamless pipe for oil country tubular goods having high strength and excellent sulfide stress corrosion cracking resistance and a method for manufacturing thereof. The martensitic stainless steel seamless pipe for oil country tubular goods has a composition that contains, in mass %, C: 0.0100% or more, Si: 0.5% or less, Mn: 0.25 to 0.50%, P: 0.030% or less, S: 0.005% or less, Ni: 4.6 to 8.0%, Cr: 10.0 to 14.0%, Mo: 1.0 to 2.7%, Al: 0.1% or less, V: 0.005 to 0.2%, N: 0.1% or less, Ti: 0.06 to 0.25%, Cu: 0.01 to 1.0%, and Co: 0.01 to 1.0%, in which C, Mn, Cr, Cu, Ni, Mo, W, Nb, N, and Ti satisfy predetermined relations, and the balance is Fe and incidental impurities. The martensitic stainless steel seamless pipe has a yield stress of 758 MPa or more.

Abstract: A resist underlayer film having, in particular, a high dry etching speed; the resist underlayer film formation composition; a resist pattern formation method, and a method for manufacturing a semiconductor device. The resist underlay film formation composition contains: a bifunctional or higher compound having one or more disulfide bonds; a trifunctional or higher compound and/or a reaction product; and a solvent. The bifunctional or higher compound is a dicarboxylic acid containing a disulfide bond. The trifunctional or higher compound is a compound containing three or more epoxy groups.

Abstract: The invention is intended to provide a martensitic stainless steel seamless pipe for oil country tubular goods having a yield stress of 758 MPa or more, and excellent sulfide stress corrosion cracking resistance. A method for manufacturing such a martensitic stainless steel seamless pipe is also provided. The martensitic stainless steel seamless pipe for oil country tubular goods has a composition that contains, in mass %, C: 0.010% or more, Si: 0.5% or less, Mn: 0.05 to 0.50%, P: 0.030% or less, S: 0.005% or less, Ni: 4.6 to 8.0%, Cr: 10.0 to 14.0%, Mo: 1.0 to 2.7%, Al: 0.1% or less, V: 0.005 to 0.2%, N: 0.1% or less, Ti: 0.010 to 0.054%, Cu: 0.01 to 1.0%, and Co: 0.01 to 1.0%. C, Mn, Cr, Cu, Ni, Mo, W, N, and Ti satisfy the predetermined relations, and the balance is Fe and incidental impurities. The martensitic stainless steel seamless pipe has a yield stress of 758 MPa or more.

Abstract: An information processing system includes a processor that performs an object detection to detect an object from a detection target image. The processor divides the detection target image into a group of first grid cells. The object is positioned to overlap a group of second grid cells included in the group of the first grid cells. At this time, the processor generates a bounding box in a respective second grid cell included in the group of the second grid cells. The processor surrounds a portion of the object positioned in the respective second grid cell with the bounding box generated in the respective second grid cell and displays, on a display, a position and shape of the object by a collection of a plurality of bounding boxes superimposedly on the detection target image.

Abstract: A composition containing antithrombin and a method for treating preeclampsia are disclosed. The method includes administering antithrombin or a composition including antithrombin to a subject in need of preeclampsia treatment. The subject may have blood antithrombin activity of 100% or less. The composition containing antithrombin may be administered to a subject with preeclampsia, who has blood antithrombin activity of 100% or less and the like.

Abstract: To provide a rolling bearing which is superior in preventing electrolytic corrosion, suitable for use in applications where torque reduction of the bearing is required by reducing an amount of lubricant used or by using a lubricant having a low viscosity, and has superior acoustic characteristics and durability, a rolling element according to the present invention is made of an alumina-zirconia composite material including an alumina component and either a zirconia component or a yttria-zirconia component containing 1.5 to 5 mol % of yttria, a mass ratio of the alumina component to the zirconia component or the yttria-zirconia component being 5:95 to 50:50.

Abstract: An electric current control method for a servomotor in which a reactive current is lowered in a region where a voltage saturation does not occur, to suppress generation of heat caused by the reactive current and achieve a stable rotation up to a high-speed region. In the current control of the servomotor using a DQ conversion, an electric current is not supplied to d-phase and supplied only to q-phase when a rotational speed of the servomotor is not high, and the reactive current is supplied to the d-phase only when the rotational speed of the servomotor is high, to thereby lower the terminal voltage of the servomotor by the reactive current. Thus, the reactive current is reduced in the region where the voltage saturation does not occur, to thereby suppress the generation of heat due to the reactive current, and also achieve the stable rotation even in the high-speed region.

Abstract: A hollow shaft motor which has a ball screw shaft (24) passed therethrough and which drives the ball screw shaft (24) to rotate, wherein provision is made for flow paths (28, 30, 32) for passing compressed air for cooling purposes to one end of the motor so that the heat generated by the motor is not conducted to the ball screw shaft (24) through the ball nut (22) attached to one end of the cylindrical shaft (20) of the through type motor and engaged with the ball screw shaft.