Abstract: A scoring model learning device is a device that generates a scoring model for determining naturalness of an answer sentence to a question sentence, which outputs a likelihood of a label indicating naturalness of the answer sentence on the basis of a context vector, and the device includes a division unit that divides a concatenation sentence included in learning data including a pair of a concatenation sentence having a question sentence and an answer sentence concatenated with each other and a correct answer label indicating naturalness of the answer sentence into words to generate a word string, a prediction unit that inputs each word included in the word string to the scoring model according to an arrangement order and acquires a likelihood, and a model learning unit that updates parameters of the scoring model on the basis of an error between the acquired likelihood and the correct answer label.

Abstract: A power transmitting device includes a first rotor and a second rotor rotatably disposed coaxially with a rotational central axis and in facing relation to each other. A first pressing protrusion projecting from the first rotor and a second pressing protrusion projecting from the second rotor are disposed in relative positions on superposed rotation trajectories. A soft rubber member elastically deformable to a large extent and has a small modulus of elasticity and a hard rubber member elastically deformable to a small extent and has a large modulus of elasticity are interposed between the first and second pressing protrusions. While no relative torque load is being applied to the first and second rotors, the soft rubber member is held in contact with both the first and second pressing protrusions, and the hard rubber member is interposed between the first pressing protrusion and the second pressing protrusion with gaps therebetween.

Abstract: A power transmitting device includes a first rotor and a second rotor rotatably disposed coaxially with a rotational central axis and in facing relation to each other, a single arc spring that is elastically deformable to a large extent and has a small modulus of elasticity, the arc spring being interposed between the first rotor and the second rotor for urging the first rotor and the second rotor to opposite sides in a ration direction, a first pressing protrusion projecting from the first rotor and a second pressing protrusion projecting from the second rotor, the first pressing protrusion and the second pressing protrusion being disposed in relative positions on superposed rotation trajectories, and a rubber member that is elastically deformable to a small extent and has a large modulus of elasticity, the rubber member being interposed between the first pressing protrusion and the second pressing protrusion with gaps therebetween.

Abstract: A power transmitting device includes a first rotor and a second rotor rotatably disposed coaxially with a rotational central axis and in facing relation to each other. A first pressing protrusion projecting from the first rotor and a second pressing protrusion projecting from the second rotor are disposed in relative positions on superposed rotation trajectories. A soft rubber member elastically deformable to a large extent and has a small modulus of elasticity and a hard rubber member elastically deformable to a small extent and has a large modulus of elasticity are interposed between the first and second pressing protrusions. While no relative torque load is being applied to the first and second rotors, the soft rubber member is held in contact with both the first and second pressing protrusions, and the hard rubber member is interposed between the first pressing protrusion and the second pressing protrusion with gaps therebetween.

Abstract: A power transmitting device includes a first rotor and a second rotor rotatably disposed coaxially with a rotational central axis be and in facing relation to each other, a single arc spring that is elastically deformable to a large extent and has a small modulus of elasticity, the arc spring being interposed between the first rotor and the second rotor for urging the first rotor and the second rotor to opposite sides in a ration direction, a first pressing protrusion projecting from the first rotor and a second pressing protrusion projecting from the second rotor, the first pressing protrusion and the second pressing protrusion being disposed in relative positions on superposed rotation trajectories, and a rubber member that is elastically deformable to a small extent and has a large modulus of elasticity, the rubber member being interposed between the first pressing protrusion and the second pressing protrusion with gaps therebetween.

Abstract: A fluorine-containing vinyl ether compound of the formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCH?CH2 is produced by subjecting a fluorine-containing alcohol of the formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOH wherein n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3, and 2-haloethyl vinyl ether of the formula: XCH2CH2OCH?CH2 to XCH2CH2OH-elimination reaction in the presence of a palladium-based catalyst and an aliphatic amine. The fluorine-containing vinyl ether compound contain a perfluoroalkyl group having 6 or less carbon atoms, which is said to have low bioaccumulation potential.

Abstract: A fluorine-containing vinyl ether compound of the formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCH?CH2 is produced by subjecting a fluorine-containing alcohol of the formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOH wherein n is an integer of 1 to 6, a is an integer of 1 to 4, b is an integer of 1 to 3, and c is an integer of 1 to 3, and 2-haloethyl vinyl ether of the formula: XCH2CH2OCH?CH2 to XCH2CH2OH-elimination reaction in the presence of a palladium-based catalyst and an aliphatic amine. The fluorine-containing vinyl ether compound contain a perfluoroalkyl group having 6 or less carbon atoms, which is said to have low bioaccumulation potential.

Abstract: An aromatic polymer, containing a repeating unit represented by Formula (I), and having properties (A1) and (B1): (A1) the number average degree of polymerization of an acetylated product obtained by acetylation of the hydroxyl groups of the polymer is 3 or more, and (B1) at a wavelength where an absolute value of molar ellipticity (degree·cm?2·dmol?1) per mole of the repeating unit of the acetylated product in a circular dichroism spectrum of the acetylated product reaches maximum in a wavelength range of from 200 to 350 nm, the absolute value is 50,000 or more: wherein R represents a hydrocarbon, hydrocarbon-oxy, hydrocarbon-mercapto or hydrocarbon-amino group that may be substituted; the two R's may bind to each other to form a ring; and the repeating unit represented by Formula (I) has no symmetrical plane that has two binding sites and that is perpendicular for the benzene ring.

Abstract: An aromatic polymer, containing a repeating unit represented by Formula (I), and having properties (A1) and (B1): (A1) the number average degree of polymerization of an acetylated product obtained by acetylation of the hydroxyl groups of the polymer is 3 or more, and (B1) at a wavelength where an absolute value of molar ellipticity (degree·cm?2·dmol?1) per mole of the repeating unit of the acetylated product in a circular dichroism spectrum of the acetylated product reaches maximum in a wavelength range of from 200 to 350 nm, the absolute value is 50,000 or more: wherein R represents a hydrocarbon, hydrocarbon-oxy, hydrocarbon-mercapto or hydrocarbon-amino group that may be substituted; the two R?s may bind to each other to form a ring; and the repeating unit represented by Formula (I) has two binding sites and has no symmetrical plane perpendicular to the benzene ring.