Abstract: The present invention relates to a low thermal expansion alloy, consisting of: 0.10 to 0.40 mass % of C; up to 1.00 mass % of Si; 0.10 to 2.00 mass % of Mn; up to 0.050 mass % of P; up to 0.015 mass % of S; 0.10 to 4.00 mass % of Cu; 35.0 to 45.0 mass % of Ni; 0.10 to 1.00 mass % of V; up to 4.00 mass % of Mo; each up to 0.50 mass % of Cr, Co, Al, Ti, Nb, W, Zr, Hf, and Ta; and each up to 0.050 mass % of B, Mg, Ca, and REM, with the balance being Fe and unavoidable impurities. The low thermal expansion alloy satisfies A?38.0 and 40.6<B?44.5. Here, A and B are defined in the description.

Abstract: A cause estimation device includes: an acquisition unit that acquires a measurement value of a target apparatus; a likelihood calculation unit that calculates, in a case where it is assumed that events occur due to a common cause, a likelihood of an occurrence of each of the events based on the measurement value; a table storage unit that stores a cause table in which a cause of occurrence of the event and a frequency of the cause of occurrence are associated with each other for each of the plurality of events; and an estimation unit that rewrites the frequency registered in the cause table into a frequency in the case where it is assumed that the plurality of events occur due to the common cause, and estimates the cause of occurrence based on the rewritten cause table and the likelihood.

Abstract: A reactor component includes a coil, a core, a bobbin and a resin portion. The bobbin includes: a tubular portion, which is placed in a hollow space of the coil; two flanges, which are placed at two opposite ends, respectively, of the coil; and a pair of coupling portions, each of which extends from one of the two flanges to another one of the two flanges. The pair of coupling portions clamp a portion of the coil. Each of the coupling portions has an opposing surface in contact with an outer wall of the coil; and a resin-side wall surface that is opposite to the opposing surface and is in contact with the resin portion.

Abstract: The present invention relates to an austenitic stainless steel, consisting of: C?0.10 mass %, Si?0.50 mass %, 3.0 mass %?Mn?8.0 mass %, P?0.30 mass %, S?0.30 mass %, 7.0 mass %?Ni?12.0 mass %, 18.0 mass %?Cr ?28.0 mass %, 1.0 mass %?Mo?3.0 mass %, 0.03 mass %?V?0.50 mass %, 0.0003 mass %?B?0.0300 mass %, 0.0001 mass %?Ca?0.0300 mass %, 0.35 mass %?N?0.80 mass %, and 0.001 mass %?Co?1.00 mass %, and optionally, W?2.0 mass %, Zr?0.20 mass %, and Ta?0.50 mass %, with a balance being Fe and unavoidable impurities, and having a number density of coarse alloy carbonitrides of 3×105 pieces/mm2 or less.

Abstract: The present disclosure relates to an austenitic stainless steel contains C?0.10 mass %, Si?0.50 mass %, 3.0?Mn?8.0 mass %, P?0.30 mass %, S?0.30 mass %, 7.0?Ni?12.0 mass %, 18.0?Cr?28.0 mass %, 1.0?Mo?3.0 mass %, 0.03?V?0.50 mass %, 0.0003?B?0.0300 mass %, 0.0001?Ca?0.0300 mass %, 0.35?N?0.80 mass %, W?2.0 mass %, Zr?0.20 mass %, Cu?0.5 mass %, Al?0.10 mass %, and O?0.050 mass %, with a balance being Fe and unavoidable impurities. The austenitic stainless steel has a number density of coarse alloy carbonitrides of 3×105 pieces/mm2 or less.

Abstract: Disclosed is a martensitic stainless steel for a hydrogen gas environment, having a composition consisting of: 0.02 mass %?C?0.30 mass %, Si?1.50 mass %, Mn?1.50 mass %, P?0.150 mass %, S?0.150 mass %, 8.0 mass %?Cr?22.0 mass %, 1.0 mass %?Ni?6.0 mass %, 0.01 mass %?Nb?1.0 mass %, and N?0.12 mass %, and optionally at least one selected from the group consisting of: Cu?6.00 mass %, Mo?3.00 mass %, V?1.50 mass %, and B?0.0500 mass %, with the balance being Fe and inevitable impurities; having: a crystal grain size number of prior austenite grains of 2.0 or more, an amount of retained austenite of 40 vol % or less, a tensile strength of 1,500 MPa or less, and satisfying DH2(0.7)/Dair?0.8.

Abstract: The present invention relates to an austenitic stainless steel for high-pressure hydrogen gas or liquid hydrogen, having a composition consisting of: C?0.20 mass %, 0.10 mass %? Si?1.00 mass %, 0.10 mass %?Mn?2.0 mass %, P?0.050 mass %, S?0.050 mass %, 2.0 mass %?Cu<4.0 mass %, 8.0 mass %? Ni?11.5 mass %, 17.0 mass %<Cr?22.0 mass %, Mo?0.20 mass %, and N?0.050 mass %, with the balance being Fe and inevitable impurities; having an Ni equivalent Nieq of 24.0 or more; and having a relative reduction in area of 0.8 or more.

Abstract: Disclosed is a martensitic stainless steel material for a hydrogen gas environment, having a composition consisting of: 0.03 mass %?C?1.20 mass %, Si?1.00 mass %, Mn?1.50 mass %, P?0.060 mass %, S?0.250 mass %, Cu?0.50 mass %, 8.0 mass %?Cr?22.0 mass %, Ni?1.00 mass %, and N?0.40 mass %, and optionally at least one selected from the group consisting of: Mo?3.00 mass %, V?1.50 mass %, Nb?1.00 mass %, Pb?0.30 mass %, and B?0.0500 mass %, with the balance being Fe and inevitable impurities; having: a content of a precipitate of 1.50 mass % or more, a crystal grain size number of prior austenite grains of 2.0 or more, a metal structure including a martensite structure, a tensile strength of 1,800 MPa or less, and satisfying DH2(0.7)/Dair?0.8.

Abstract: A thermal barrier coating includes a bond coat layer deposited on a substrate, and a ceramic layer deposited on the bond coat layer. The ceramic layer includes a first layer having a porosity of 10% or more and 15% or less, and a second layer having a porosity of 0.5% or more and 9.0% or less and deposited on the first layer.

Abstract: A cause estimation device includes: an acquisition unit that acquires a measurement value of a target apparatus; a likelihood calculation unit that calculates, in a case where it is assumed that events occur due to a common cause, a likelihood of an occurrence of each of the events based on the measurement value; a table storage unit that stores a cause table in which a cause of occurrence of the event and a frequency of the cause of occurrence are associated with each other for each of the plurality of events; and an estimation unit that rewrites the frequency registered in the cause table into a frequency in the case where it is assumed that the plurality of events occur due to the common cause, and estimates the cause of occurrence based on the rewritten cause table and the likelihood.

Abstract: The present disclosure relates to an austenitic stainless steel contains C?0.10 mass %, Si?0.50 mass %, 3.0?Mn?8.0 mass %, P?0.30 mass %, S?0.30 mass %, 7.0 Ni?12.0 mass %, 18.0?Cr?28.0 mass %, 1.0?Mo?3.0 mass %, 0.03?V?0.50 mass %, 0.0003?B?0.0300 mass %, 0.0001?Ca?0.0300 mass %, 0.35?N?0.80 mass %, W?2.0 mass %, Zr?0.20 mass %, Cu?0.5 mass %, Al?0.10 mass %, and O?0.050 mass %, with a balance being Fe and unavoidable impurities. The austenitic stainless steel has a number density of coarse alloy carbonitrides of 3×105 pieces/mm2 or less.

Abstract: A suction apparatus includes a suction unit, a negative pressure detection unit, a suction abnormality determination unit, and a notification unit. The suction unit suctions and holds merchandise with a negative pressure. The negative pressure detection unit detects a negative pressure value in the suction unit whenever the suction unit suctions the merchandise. The suction abnormality determination unit determines that the suction unit is abnormal in a case where the detected negative pressure value is lower in negative pressure degree than a predetermined suction determination negative pressure value continuously by a predetermined number of times of determination or more. The notification unit provides a notification in a case where the suction unit is determined to be abnormal.

Abstract: The task is to provide a thermal barrier coating film (13) which exhibits high durability even in a gas turbine that is used under a molten salt environment, such as a heavy oil fired gas turbine, and which can be efficiently formed at low cost without requiring complicated processes, and a thermal barrier coating film (13) configures a turbine member includes a ceramic material thermally sprayed and formed on a base material (10) made of a heat resistant alloy, in which ytterbia partially stabilized zirconia is used as the ceramic material of the film (13), and the porosity of the film (13) is 5% or more and less than 8%.

Abstract: A rim guard of a tire has a top, an inner surface, and an outer surface. A contour of the inner surface is represented by a circular arc, and the circular arc has a radius of not less than 20 mm and not greater than 30 mm. A contour of the outer surface is represented by a circular arc, and the circular arc has a radius of not less than 100 mm and not greater than 500 mm. In a radial direction, a position of an outer edge of the outer surface coincides with a cross-sectional width specified position, or the outer edge of the outer surface is located outward of the cross-sectional width specified position.

Abstract: A thermal barrier coating film includes a bond coat layer that is a metallic bond layer formed on a base material; a topcoat layer that is a ceramic-containing layer formed on the bond coat layer; and at least one of a protective layer and a protective substance. The protective layer is formed on the topcoat layer and mainly contains SrSO4. The protective substance is provided in a plurality of void spaces included in the topcoat layer and mainly contains SrSO4.

Abstract: A thermal barrier coating includes a bond coat layer deposited on a substrate, and a ceramic layer deposited on the bond coat layer. The ceramic layer includes a first layer having a porosity of 10% or more and 15% or less, and a second layer having a porosity of 0.5% or more and 9.0% or less and deposited on the first layer.

Abstract: A rim protector 40 of a tire 2 projects from a reference surface 44 of each side piece 38. The rim protector 40 has a first inclined surface 50 and a second inclined surface 52. A profile of the reference surface 44 includes an outer circular arc and an inner circular arc which are tangent to each other at a reference position. A first circular arc of the first inclined surface 50 is tangent to the outer circular arc, and a second circular arc of the second inclined surface 52 is tangent to the inner circular arc. A ratio of a height H relative to a cross-sectional height SH is equal to or greater than 0.27 and equal to or less than 0.34. A projecting length W is equal to or greater than 12 mm and equal to or less than 18 mm.

Abstract: A thermal barrier coating includes a highly porous layer and a dense layer. The highly porous layer is formed on a heat-resistant base, is made of ceramic, has pores, has a layer thickness of equal to or larger than 0.3 mm and equal to or smaller than 1.0 mm, and has a pore ratio of equal to or higher than 1 vol % and equal to or lower than 30 vol %. The dense layer is formed on the highly porous layer, is made of ceramic, has a pore ratio of equal to or lower than 0.9 vol % that is equal to or lower than the pore ratio of the highly porous layer, and has a layer thickness of equal to or smaller than 0.05 mm.

Abstract: A suction apparatus includes a suction unit, a negative pressure detection unit, a suction abnormality determination unit, and a notification unit. The suction unit suctions and holds merchandise with a negative pressure. The negative pressure detection unit detects a negative pressure value in the suction unit whenever the suction unit suctions the merchandise. The suction abnormality determination unit determines that the suction unit is abnormal in a case where the detected negative pressure value is lower in negative pressure degree than a predetermined suction determination negative pressure value continuously by a predetermined number of times of determination or more. The notification unit provides a notification in a case where the suction unit is determined to be abnormal.

Abstract: A resource management device includes a memory and a processor configured to accept, from the terminal, a request to execute an exclusion of a first processing device from a device group, the device group including processing devices that execute processing in response to an instruction, execute copying of a processing execution history from a storage in the first processing device to a second processing device different from the first processing device among the device group in response to the request, and execute the exclusion of the first processing device from the device group after completion of the copying of the processing execution history.