Abstract: A yarn includes elongated pieces of expanded graphite sheet and a tubular member made of knitted or braided fibers. In the tubular member, the pieces of expanded graphite sheet are twisted and packed. The yarns are knitted, or bundles of the yarns are twisted to form a gland packing.

Abstract: Provided is a spiral wound gasket that has improved conformability and that is capable of exhibiting sufficient sealability for flanges provided at joints, irrespective of the state of a gap between the flanges. The present invention provides a spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound and integrated so as to have an opening at the center, wherein the hoop member has a cross-sectional shape with a bent portion, and V expressed by an equation (I) below is 0.5 to 2.4: V = 1 r ? cos ? ( ? 2 ) , ( I ) where a bending angle constituting the bent portion is ? (°), and a radius of curvature of the bent portion is r (mm).

Abstract: Provided is a spiral wound gasket that makes it less likely that gaps that are in communication with each other in a spiral shape will remain between layers of a filler member exposed at a gasket face in a state before the gasket is clamped and that is capable of exhibiting sufficient sealability for flanges provided at pipe joints. The present invention provides a spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound around an opening and integrated, and which has gasket faces at respective end portions, wherein, at each of the gasket faces, an end portion of the filler member protrudes past an end portion of the hoop member, and the gasket faces have a surface roughness Rz of 30 ?m to 200 ?m.

Abstract: A scintillator panel includes at least one light emitting layer and at least one non-light emitting layer laminated, wherein the light emitting layer contains phosphor particles, and when the thickness of the light emitting layer is represented by A, a relationship among a cumulative 50% particle diameter D50 of the phosphor particles based on volume average, a cumulative 90% particle diameter D90 of the phosphor particles based on volume average, and the thickness A satisfies, D50<A and D90<2A.

Abstract: A scintillator panel includes at least one light emitting layer and at least one non-light emitting layer laminated, wherein the light emitting layer contains phosphor particles, and when the thickness of the light emitting layer is represented by A, a relationship among a cumulative 50% particle diameter D50 of the phosphor particles based on volume average, a cumulative 90% particle diameter D90 of the phosphor particles based on volume average, and the thickness A satisfies, D50<A and D90<2A.

Abstract: Provided is a spiral wound gasket that makes it less likely that gaps that are in communication with each other in a spiral shape will remain between layers of a filler member exposed at a gasket face in a state before the gasket is clamped and that is capable of exhibiting sufficient sealability for flanges provided at pipe joints. The present invention provides a spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound around an opening and integrated, and which has gasket faces at respective end portions, wherein, at each of the gasket faces, an end portion of the filler member protrudes past an end portion of the hoop member, and the gasket faces have a surface roughness Rz of 30 ?m to 200 ?m.

Abstract: Provided is a spiral wound gasket that has improved conformability and that is capable of exhibiting sufficient sealability for flanges provided at joints, irrespective of the state of a gap between the flanges. The present invention provides a spiral wound gasket in which a laminate of a hoop member made of metal and a filler member is wound and integrated so as to have an opening at the center, wherein the hoop member has a cross-sectional shape with a bent portion, and V expressed by an equation (I) below is 0.5 to 2.4: V = 1 r ? cos ? ( ? 2 ) , ( I ) where a bending angle constituting the bent portion is ? (°), and a radius of curvature of the bent portion is r (mm).

Abstract: The invention provides radiographic image conversion panels which ensure a high image quality (brightness) of the obtainable radiographic images and have excellent moisture proofness. The radiographic image conversion panel includes a photoelectric conversion element and a scintillator layer including a phosphor and one or more activators, the phosphor being in the form of columnar crystal. The activator concentration in the thickness direction of the scintillator layer gives a profile curve having two or more peaks. The amount of activator or activators present in a region of the scintillator layer extending over a thickness of 100 ?m from a principal surface of the scintillator layer opposed to the photoelectric conversion element is 0.3 to 0.7 mol % (relative to the amount of phosphor base compound present in the region taken as 100 mol %).

Abstract: The invention provides radiographic image conversion panels which ensure a high image quality (brightness) of the obtainable radiographic images and have excellent moisture proofness. The radiographic image conversion panel includes a photoelectric conversion element and a scintillator layer including a phosphor and one or more activators, the phosphor being in the form of columnar crystal. The activator concentration in the thickness direction of the scintillator layer gives a profile curve having two or more peaks. The amount of activator or activators present in a region of the scintillator layer extending over a thickness of 100 ?m from a principal surface of the scintillator layer opposed to the photoelectric conversion element is 0.3 to 0.7 mol % (relative to the amount of phosphor base compound present in the region taken as 100 mol %).

Abstract: A scintillator panel exhibiting enhanced emission luminance is disclosed, comprising a phosphor layer containing a phosphor capable of emitting light upon exposure to radiation, a substrate supporting the phosphor layer and a protective film covering the phosphor layer and the substrate, wherein the phosphor layer comprises two or more layers, and satisfying the following expression 1: 1.0?B/A?1000 ??Expression 1: wherein B is an average activator concentration (mol %) of an uppermost phosphor layer, based on a phosphor and A is an average activator concentration (mol %) of the other phosphor layers, based on a phosphor.

Abstract: A scintillator panel exhibiting enhanced emission luminance is disclosed, comprising a phosphor layer containing a phosphor capable of emitting light upon exposure to radiation, a substrate supporting the phosphor layer and a protective film covering the phosphor layer and the substrate, wherein the phosphor layer comprises two or more layers, and satisfying the following expression 1: 1.0?B/A?1000??Expression 1 wherein B is an average activator concentration (mol %) of an uppermost phosphor layer, based on a phosphor and A is an average activator concentration (mol %) of the other phosphor layers, based on a phosphor.