Abstract: A data processing system, a data processing device, and a data processing method are provided. The data processing system includes a wearable device including a display means and an imaging means and a database that is connected to the wearable device through a network. The database includes at least one of pieces of information on a cooking recipe, a cooking method, and a material. The wearable device detects a first material by the imaging means. The wearable device collects information on the first material from the database. When the first material exists in a specific region in an imaging range of the imaging means, the information on the first material is displayed on the display means. When the first material does not exist in the specific region, the information on the first material is not displayed on the display means.

Abstract: A composite sintered material includes: a plurality of diamond grains having an average grain size of less than or equal to 10 ?m; a plurality of cubic boron nitride grains having an average grain size of less than or equal to 2 ?m; and a plurality of aluminum oxide grains having an average grain size of less than or equal to 0.5 ?m; and a remainder of a binder phase, wherein at least parts of adjacent diamond grains are bound to one another, the binder phase includes cobalt, in the composite sintered material, a content of the diamond grains is from 30 to 92 volume %, a content of the cubic boron nitride grains is from 3 to 40 volume %, a content of the aluminum oxide grains is from 2 to 15 volume %, and a content of the cobalt is from 3 to 30 volume %.

Abstract: A rotary cutting tool according to the present disclosure is rotatable about an axial line and includes a rake face and a flank face. The flank face is contiguous to the rake face. A ridgeline between the rake face and the flank face constitutes a cutting edge. In a cross section perpendicular to the axial line, the rake face is constituted of a plurality of straight line portions.

Abstract: A composite sintered material includes a plurality of diamond grains, a plurality of cubic boron nitride grains, and a remainder of a binder phase, wherein the binder phase includes cobalt, a content of the cubic boron nitride grains in the composite sintered material is more than or equal to 3 volume % and less than or equal to 40 volume %, and an average length of line segments extending across continuous cubic boron nitride grains in appropriately specified straight lines extending through the composite sintered material is less than or equal to a length three times as large as an average grain size of the cubic boron nitride grains.

Abstract: A cutting tool rotates about a rotation axis, and includes a tip end portion. The tip end portion includes a partially spherical surface that is brought into contact with a workpiece. The surface is provided with a plurality of recesses disposed apart from each other. An opening edge of each of the plurality of recesses constitutes a cutting edge.

Abstract: A cubic boron nitride sintered material includes: to 98 volume % of cubic boron nitride grains; and a binder phase, wherein the binder phase includes at least one selected from a group consisting of one or more first compounds and a solid solution originated from the first compounds, the cubic boron nitride grains include, on number basis, more than or equal to 50% of cubic boron nitride grains each having an equivalent circle diameter of more than 0.5 ?m, and includes, on number basis, less than or equal to 50% of cubic boron nitride grains each having an equivalent circle diameter of more than 2 ?m, and when a mass of the cubic boron nitride grains is assumed as 100 mass %, a total content of lithium, magnesium, calcium, strontium, beryllium, and barium in the cubic boron nitride grains is less than 0.001 mass %.

Abstract: A rotary cutting tool according to the present disclosure is rotatable about an axial line and includes a rake face and a flank face. The flank face is contiguous to the rake face. A ridgeline between the rake face and the flank face constitutes a cutting edge. In a cross section perpendicular to the axial line, the rake face is constituted of a plurality of straight line portions.

Abstract: A cubic boron nitride sintered material includes: 0 to 85 volume % of cubic boron nitride grains; and a binder phase, wherein the binder phase includes at least one selected from a group consisting of one or more first compounds and a solid solution originated from the first compounds, the cubic boron nitride grains include, on number basis, more than or equal to 50% of cubic boron nitride grains each having an equivalent circle diameter of more than 0.5 ?m, and includes, on number basis, less than or equal to 50% of cubic boron nitride grains each having an equivalent circle diameter of more than 2 ?m, and when a mass of the cubic boron nitride grains is assumed as 100 mass %, a total content of lithium, magnesium, calcium, strontium, beryllium, and barium in the cubic boron nitride grains is less than 0.001 mass %.

Abstract: A data processing system, a data processing device, and a data processing method are provided. The data processing system includes a wearable device including a display means and an imaging means and a database that is connected to the wearable device through a network. The database includes at least one of pieces of information on a cooking recipe, a cooking method, and a material. The wearable device detects a first material by the imaging means. The wearable device collects information on the first material from the database. When the first material exists in a specific region in an imaging range of the imaging means, the information on the first material is displayed on the display means. When the first material does not exist in the specific region, the information on the first material is not displayed on the display means.

Abstract: A tool of the present disclosure includes a tip end portion. The tip end portion has a surface. At least a part of the surface includes a plurality of protrusions, a first recess provided by contact between ends of two adjacent protrusions of the protrusions, and a second recess different from the first recess. The second recess is provided inside at least one of the protrusions or provided to extend across the two adjacent protrusions.