Abstract: A plasticizing device that plasticizes a solid material includes a drive motor, a screw rotated by the drive motor along a rotation axis of the drive motor and having a groove forming surface on which a groove is formed, a barrel having a facing surface facing the groove forming surface and provided with a communication hole in a central portion thereof, and a heating unit configured to heat at least one of the screw and the barrel. A first facing region and a second facing region that is closer to the central portion than the first facing region are provided between the groove forming surface and the facing surface. A second gap between the groove forming surface and the facing surface in the second facing region is larger than a first gap between the groove forming surface and the facing surface in the first facing region.

Abstract: A biological analysis device includes a CPU as a control device which determines a boundary between a first bandwidth in which a temporal change in a signal intensity is large and a second bandwidth which is located closer to a high frequency side than the first bandwidth and in which a temporal change in the signal intensity is less than the first bandwidth in a plurality of intensity spectra related to frequencies calculated sequentially with regard to light reflected and received inside a biological body through radiation of a laser beam, and calculates a biological index related to a blood flow of the biological body from a signal intensity within a frequency range in which the boundary is an upper limit in the intensity spectrum.

Abstract: A plasticization device includes a screw configured to rotate around a rotation axis and including a groove forming surface on which a groove channel in which a groove extends spirally is formed; a heating unit configured to heat the material supplied to the groove channel; and a barrel including a facing surface that faces the groove forming surface and that is provided with a discharge port through which the molten material is to be discharged due to rotation of the screw and due to heating of the heating unit. The groove is defined by a first side wall portion, a second side wall portion provided at a position farther from the rotation axis than the first side wall portion, and a bottom surface portion coupled between the first side wall portion and the second side wall portion. The groove of the groove channel has an interval between the first side wall portion and the second side wall portion that becomes narrower as a distance from the bottom surface portion along the rotation axis increases.

Abstract: A biological analysis device includes an average blood pressure calculation unit that calculates an average blood pressure index related to an average blood pressure of a biological body in accordance with a blood vessel diameter index related to a blood vessel diameter of the biological body and a blood flow index related to a blood flow of the biological body and calculated from an intensity spectrum related to a frequency of light reflected and received from an inside of the biological body through radiation of a laser beam.

Abstract: A biological analysis device includes: a pulse pressure calculation unit that calculates a pulse pressure index related to a pulse pressure of a biological body; an average blood pressure calculation unit that calculates an average blood pressure index related to an average blood pressure of the biological body; and a blood pressure calculation unit that calculates a systolic blood pressure and a diastolic blood pressure in accordance with the pulse pressure index and the average blood pressure index. At least one of the pulse pressure index and the average blood pressure index is calculated in accordance with a blood flow index which is calculated from an intensity spectrum related to a frequency of light reflected and received from an inside of the biological body through radiation of a laser beam and is related to a blood flow of the biological body.

Abstract: A plasticizing device includes a drive motor, a screw that is rotated by the drive motor and that has a grooved face provided with a groove, a barrel that has an opposed face opposed to the grooved face and that is provided with a communication hole communicating with the groove at the opposed face, a first heating section that heats the material supplied to the groove, a temperature sensor that measures a temperature of the groove, and a control unit that controls the drive motor and the first heating section, wherein the control unit performs a first process for rotating the screw at a first rotation speed by controlling the drive motor, and a second process for rotating the screw at a second rotation speed higher than the first rotation speed by controlling the drive motor, and the control unit controls the first heating section so that a temperature measured by the temperature sensor falls within a predetermined range when performing the first process and the second process.

Abstract: A plasticizing device that plasticizes a material and includes a drive motor, a screw that is rotated by the drive motor and that has a grooved face provided with a groove, a barrel that has an opposed face opposed to the grooved face and that includes a communication hole communicating with the groove at the opposed face, a heating section that heats the material supplied to the groove, a first temperature sensor that measures a temperature of the groove, and a control unit that controls the drive motor, wherein the control unit performs a first process for rotating the screw at a first rotation speed when a temperature measured by the first temperature sensor is a first temperature, and a second process for rotating the screw at a second rotation speed lower than the first rotation speed when a second measured temperature measured is higher than the first temperature.

Abstract: A plasticizing device includes a screw that has a grooved face provided with a first groove, a barrel that has an opposed face and a communication hole communicating with the first groove at the opposed face, and a heating section that heats a material supplied to the first groove, wherein the first groove includes a central portion opposed to the communication hole, a material supply portion that is provided at an outer circumference of the grooved face , and a coupling portion that couples the central portion to the material supply portion, a second groove that is coupled to the communication hole is provided and when viewed from the rotational axis direction, an end at the outer circumferential side of the second groove is located inside a track drawn by a boundary line between the material supply portion and the coupling portion when the screw is rotated once.

Abstract: A biological analysis device includes a blood vessel calculation unit that calculates a blood vessel index related to a blood vessel of a biological body in accordance with a blood mass integration value obtained by integrating blood mass indexes relate to a blood mass of the biological body during an integration period and a blood flow integration value obtained by integrating blood flow indexes related to a blood flow of the biological body during the integration period.

Abstract: A plasticization device that plasticizes a material, includes: a drive motor; a rotor that is to be rotated by the drive motor and has a groove-forming surface in which a curved projection strip portion is formed from a peripheral edge of a circular central portion toward an outer periphery of the rotor; a barrel that faces the groove-forming surface and includes a communication hole at a position facing the central portion of the groove-forming surface; and a heating unit that heats the material supplied between the rotor and the barrel, the rotor includes a protrusion protruding from the central portion toward the communication hole, and 0.28?S2/S1?1.03??(1), wherein S1 is an area of the central portion and S2 is a maximum area of a cross section of the protrusion along the groove-forming surface.

Abstract: A plasticizing device that plasticizes a solid material includes a drive motor, a screw rotated by the drive motor along a rotation axis of the drive motor and having a groove forming surface on which a groove is formed, a barrel having a facing surface facing the groove forming surface and provided with a communication hole in a central portion thereof, and a heating unit configured to heat at least one of the screw and the barrel. A first facing region and a second facing region that is closer to the central portion than the first facing region are provided between the groove forming surface and the facing surface. A second gap between the groove forming surface and the facing surface in the second facing region is larger than a first gap between the groove forming surface and the facing surface in the first facing region.

Abstract: A plasticization device includes a screw configured to rotate around a rotation axis and including a groove forming surface on which a groove channel in which a groove extends spirally is formed; a heating unit configured to heat the material supplied to the groove channel; and a barrel including a facing surface that faces the groove forming surface and that is provided with a discharge port through which the molten material is to be discharged due to rotation of the screw and due to heating of the heating unit. The groove is defined by a first side wall portion, a second side wall portion provided at a position farther from the rotation axis than the first side wall portion, and a bottom surface portion coupled between the first side wall portion and the second side wall portion. The groove of the groove channel has an interval between the first side wall portion and the second side wall portion that becomes narrower as a distance from the bottom surface portion along the rotation axis increases.

Abstract: A biological analysis device includes a CPU as a control device which determines a boundary between a first bandwidth in which a temporal change in a signal intensity is large and a second bandwidth which is located closer to a high frequency side than the first bandwidth and in which a temporal change in the signal intensity is less than the first bandwidth in a plurality of intensity spectra related to frequencies calculated sequentially with regard to light reflected and received inside a biological body through radiation of a laser beam, and calculates a biological index related to a blood flow of the biological body from a signal intensity within a frequency range in which the boundary is an upper limit in the intensity spectrum.

Abstract: A biological analysis device includes: a pulse pressure calculation unit that calculates a pulse pressure index related to a pulse pressure of a biological body; an average blood pressure calculation unit that calculates an average blood pressure index related to an average blood pressure of the biological body; and a blood pressure calculation unit that calculates a systolic blood pressure and a diastolic blood pressure in accordance with the pulse pressure index and the average blood pressure index. At least one of the pulse pressure index and the average blood pressure index is calculated in accordance with a blood flow index which is calculated from an intensity spectrum related to a frequency of light reflected and received from an inside of the biological body through radiation of a laser beam and is related to a blood flow of the biological body.

Abstract: A biological analysis device includes an average blood pressure calculation unit that calculates an average blood pressure index related to an average blood pressure of a biological body in accordance with a blood vessel diameter index related to a blood vessel diameter of the biological body and a blood flow index related to a blood flow of the biological body and calculated from an intensity spectrum related to a frequency of light reflected and received from an inside of the biological body through radiation of a laser beam.

Abstract: A biological analysis device includes a blood vessel calculation unit that calculates a blood vessel index related to a blood vessel of a biological body in accordance with a blood mass integration value obtained by integrating blood mass indexes relate to a blood mass of the biological body during an integration period and a blood flow integration value obtained by integrating blood flow indexes related to a blood flow of the biological body during the integration period.

Abstract: A detection device that includes a light emitting part that outputs coherent light, a first light receiving part that generates the first detection signal according to a light reception level of the coherent light output from the light emitting part and passing through an artery of the measurement site, and a second light receiving part that generates the second detection signal according to the light reception level of the coherent light output from the light emitting part and passing through the artery, wherein the light emitting part, the first light receiving part, and the second light receiving part are provided on a detection surface facing the measurement site and located on a straight line, and are located at an equal distance from the light emitting part on opposite sides to each other with the light emitting part in between.

Abstract: A measurement apparatus includes a first pulse wave detection unit that detects a pulse wave at a first part pressed by a first pressing portion; a second pulse wave detection unit that detects the pulse wave at a second part pressed by a second pressing portion, the second part being located in a direction in which a traveling wave of the pulse wave travels from the first part; and an index measurement unit that measures an index relating to pulse wave propagation according to the pulse wave detected by the first pulse wave detection unit and the pulse wave detected by the second pulse wave detection unit, in which a pressing force first pressing portion exceeds a pressing force by the second pressing portion.

Abstract: An electronic field enhancement element includes: a metal layer; a dielectric layer provided on the metal layer; and a plurality of fine metal structures provided on the dielectric layer. A refractive index n of the dielectric layer satisfies n?=n+i? and is in a range of 1?n<1.46, wherein a complex refractive index of the dielectric layer is n?, an imaginary unit is i, and an extinction coefficient is ?.

Abstract: A detection device that includes a light emitting part that outputs coherent light, a first light receiving part that generates the first detection signal according to a light reception level of the coherent light output from the light emitting part and passing through an artery of the measurement site, and a second light receiving part that generates the second detection signal according to the light reception level of the coherent light output from the light emitting part and passing through the artery, wherein the light emitting part, the first light receiving part, and the second light receiving part are provided on a detection surface facing the measurement site and located on a straight line, and are located at an equal distance from the light emitting part on opposite sides to each other with the light emitting part in between.