Abstract: Disclosed is a switching valve having a small contact resistance when a valve body moves along a seating surface of a housing. In a switching valve which includes a valve body, coming into contact with a seating surface of a housing having a plurality of ports and selectively communicating at least two ports of the plurality of ports, and applies a fluid pressure to a back surface of the valve body, the switching valve includes a biasing member configured for biasing the valve body in a direction in which the valve body is moved away from the seating surface of the housing.

Abstract: A polymerizable monomer, a filler (A), and a filler (B) are contained, the filler (A) includes an inorganic particle and a compound covering the inorganic particle, the filler (B) includes another inorganic particle and another compound covering the other inorganic particle, and the average particle size of the filler (B) is 20% to 550% of the average particle size of the filler (A).

Abstract: According to one aspect of the present invention, a dental curable composition includes: polymerizable monomers; inorganic particles (A1) and/or inorganic particles (A2) (excluding the inorganic particles (A2); and inorganic particles (B). The inorganic particles (A1) are surface-treated with a compound expressed by a general formula (1) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m. The inorganic particles (A2) are surface-treated with a compound expressed by a general formula (2) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m.

Abstract: A polymerizable monomer, a filler (A), and a filler (B) are contained, the filler (A) includes an inorganic particle and a compound covering the inorganic particle, the filler (B) includes another inorganic particle and another compound covering the other inorganic particle, and the average particle size of the filler (B) is 20% to 550% of the average particle size of the filler (A).

Abstract: According to one aspect of the present invention, a dental curable composition includes: polymerizable monomers; inorganic particles (A1) and/or inorganic particles (A2) (excluding the inorganic particles (A2); and inorganic particles (B). The inorganic particles (A1) are surface-treated with a compound expressed by a general formula (1) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m. The inorganic particles (A2) are surface-treated with a compound expressed by a general formula (2) and have a volume-median particle size of greater than or equal to 0.1 ?m and less than or equal to 0.9 ?m.

Abstract: A polymerizable composition for dental use including a (meth)acrylate monomer that is able to cyclopolymerize is provided.

Abstract: In a structure for cooling a constituent member of a gas turbine engine using a working gas of the gas turbine engine as a cooling medium, on a wall surface of a passage wall formed from a part of the constituent member and facing a cooling medium passage through which the cooling medium flows, a recess formed on the wall surface of the passage wall and a projection formed on at least a part of a peripheral edge of the recess are provided.

Abstract: There is provided a high strength hot rolled steel sheet having a composition comprising C: 0.040% to 0.100%, by mass %, Si: 0.50% or less, by mass %, Mn: 1.00% to 2.00%, by mass %, P: 0.03% or less, by mass %, S: 0.006% or less, by mass %, Al: 0.08% or less, by mass %, N: 0.0080% or less, by mass %, Ti: 0.14% to 0.22%, by mass %, and Fe and incidental impurities, and a method for making the same. The high strength hot rolled steel sheet includes a microstructure in which a primary phase is a ferrite phase and fine carbides containing Ti are dispersion-precipitated.

Abstract: A polymerizable composition for dental use including a (meth)acrylate monomer that is able to cyclopolymerize is provided.

Abstract: The piston includes a body having a hollow chamber defined therein, and a member inserted in the hollowed chamber to define an oil passage between an inner peripheral surface of the hollow chamber and an opposing outer peripheral surface of the member. This reduces the dead volume and, as a result, improves the compressibility. In addition, the increased cooling performance prevents the fusing of the piston to the cylinder.

Abstract: A hot-rolling line, a method for photographing the entire width of a hot-rolled metal strip, a method for recording the photographic result of the entire width, a method for appropriately performing quality assurance, and a method for producing a hot-rolled metal strip using them, provide proper quality assurance for delivering a product to a customer. A hot-rolling line includes a near-infrared camera arranged to photograph an entire width of a hot-rolled metal strip on an entry side of a coiler of the hot-rolling line.

Abstract: There is provided a high strength hot rolled steel sheet having a composition comprising C: 0.040% to 0.100%, by mass %, Si: 0.50% or less, by mass %, Mn: 1.00% to 2.00%, by mass %, P: 0.03% or less, by mass %, S: 0.006% or less, by mass %, Al: 0.08% or less, by mass %, N: 0.0080% or less, by mass %, Ti: 0.14% to 0.22%, by mass %, and Fe and incidental impurities, and a method for making the same. The high strength hot rolled steel sheet includes a microstructure in which a primary phase is a ferrite phase and fine carbides containing Ti are dispersion-precipitated.

Abstract: A high strength hot-rolled steel sheet has a tensile strength of not less than 780 MPa and exhibits excellent stretch flangeability and excellent fatigue resistance. A steel has a composition containing C at 0.05 to 0.15%, Si at 0.2 to 1.2%, Mn at 1.0 to 2.0%, P at not more than 0.04%, S at not more than 0.005%, Ti at 0.05 to 0.15%, Al at 0.005 to 0.10% and N at not more than 0.007%.

Abstract: A steel sheet including C at 0.05 to 0.15%, Si at 0.2 to 1.2%, Mn at 1.0 to 2.0%, P at not more than 0.04%, S at not more than 0.0030%, Al at 0.005 to 0.10%, N at not more than 0.005% and Ti at 0.03 to 0.13%, the balance being Fe and inevitable impurities, includes surface regions having an area fraction of bainite of less than 80% and an area fraction of a ferrite phase with a grain diameter of 2 to 15 ?m of not less than 10%, the surface regions extending from both surfaces of the steel sheet each to a depth of 1.5 to 3.0% relative to a total sheet thickness, as well as an inner region other than the surface regions having an area fraction of a bainite phase of more than 95%, and has a tensile strength of not less than 780 MPa.

Abstract: A high strength hot rolled steel sheet having excellent blanking workability is provided. The composition contains C: 0.050 to 0.15%, Si: 0.1 to 1.5%, Mn: 1.0 to 2.0%, P: 0.03% or less, S: 0.0030% or less, Al: 0.01 to 0.08%, Ti: 0.05 to 0.15%, N: 0.005% or less, and the balance being Fe and unavoidable impurities. More than 95% of the microstructure is formed of a bainite phase in terms of area fraction. Average grain diameters of the bainite phase in a region having a thickness equal to ¼ of the sheet thickness from the surface in the sheet thickness direction is 5 ?m or less in an L-direction cross section and 4 ?m or less in a C-direction cross section. The number of crystal grains extended in the rolling direction and having an aspect ratio of 5 or more is 7 or less in a sheet thickness center portion.

Abstract: A steel having a composition that includes C: 0.05 to 0.15%, Si: 0.2 to 1.2%, Mn: 1.0 to 2.0%, Al: 0.005 to 0.10%, N: 0.006% or less, and at least one selected from Ti: 0.03 to 0.13%, Nb: 0.02 to 0.10%, and V: 0.02 to 0.15% is subjected to rough rolling at a reduction of 80% or more and finish rolling at a finish rolling delivery temperature in the range of 800 to 950° C. The finish rolled sheet is subjected to cooling including cooling the finish rolled sheet from the finish rolling delivery temperature to a cooling end temperature in the range of 550 to 610° C. at an average cooling rate of 25° C./sec. or more and cooling the finish rolled sheet from the cooling end temperature of the previous process to a coiling temperature at an average cooling rate of 100° C./sec. or more.

Abstract: A body structure for rolling stock is disclosed. The body structure may include an outside sheathing of a side construction, and a plurality of reinforcement members joined to said outside sheathing interiorly of said outside sheathing. Each of said plurality of reinforcement members may include a U-shaped part which is substantially U-shaped in cross-section and two fitting flange parts extending continuously from end edges of the U-shaped part in opposite directions. The fitting flange parts may be joined to said outside sheathing by laser welding, and the U-shaped part of at least one of said plurality of reinforcement members may be smaller in width than the U-shaped part of another of said plurality of reinforcement members provided on another part of said outside sheathing.

Abstract: A steel sheet including C at 0.05 to 0.15%, Si at 0.2 to 1.2%, Mn at 1.0 to 2.0%, P at not more than 0.04%, S at not more than 0.0030%, Al at 0.005 to 0.10%, N at not more than 0.005% and Ti at 0.03 to 0.13%, the balance being Fe and inevitable impurities, includes surface regions having an area fraction of bainite of less than 80% and an area fraction of a ferrite phase with a grain diameter of 2 to 15 ?m of not less than 10%, the surface regions extending from both surfaces of the steel sheet each to a depth of 1.5 to 3.0% relative to a total sheet thickness, as well as an inner region other than the surface regions having an area fraction of a bainite phase of more than 95%, and has a tensile strength of not less than 780 MPa.

Abstract: The steel sheet includes C: 0.04 to 0.12%, Si: 0.5 to 1.2%, Mn: 1.0 to 1.8%, P: not more than 0.03%, S: not more than 0.0030%, Al: 0.005 to 0.20%, N: not more than 0.005% and Ti: 0.03 to 0.13%, the balance being Fe and inevitable impurities, includes a microstructure containing a bainite phase at an area fraction exceeding 95% and having an average grain diameter of not more than 3 ?m, has a difference ?Hv1 of not more than 50 between a Vickers hardness value at 50 ?m from the surface and a Vickers hardness value at ¼ of a sheet thickness, has a difference ?Hv2 of not more than 40 between the Vickers hardness value at ¼ of the sheet thickness and a Vickers hardness value at ½ of the sheet thickness.

Abstract: A high strength hot-rolled steel sheet has a composition containing more than 0.035% to 0.055% C, 0.2% or less Si, 0.35% or less Mn, 0.03% or less P, 0.03% or less S, 0.1% or less Al, 0.01% or less N, 0.08% to 0.25% Ti, and 0.0005% to 0.0035% B on a mass basis, solute B being 0.0005% or more, the remainder being Fe and unavoidable impurities; a matrix containing a ferrite phase having an area fraction of more than 95%; a microstructure in which Ti carbides having an average grain size of less than 10 nm are finely precipitated in grains of the ferrite phase and the volume fraction of the Ti carbides is 0.0015 to 0.007; and a tensile strength of 780 MPa or more.