Abstract: A thermal radiation lens is configured to control propagation of thermal radiation, by using a sheet-type material 10 which realizes high refractive-index, non-reflective, and non-polarizing optical properties for a frequency band of a thermal radiation region. The sheet-type material 10 according to the present embodiment includes a substrate 11, a first pattern array 12 arranged regularly in the X-axis direction and the Y-axis direction on one surface of the substrate 11, and a second pattern array 13 formed on the back surface of the substrate relative to the one surface to overlap with the first pattern array, wherein meta-atoms 12a, 13a included in first and second pattern arrays have the same shape and have a width in the X-axis direction and a width in the Y-axis direction which are equivalent to each other within a range of a half wavelength of the thermal radiation.

Abstract: An electric snowmobile that reduces a decrease in charging efficiency is provided. The electric snowmobile includes a body frame, a driver's seat supported by the body frame, an electric motor supported by the body frame, a right ski and a left ski supported by the body frame, a track mechanism including a track belt and supported by the body frame below the driver's seat, a battery that is charged with electric power supplied from an external power source and capable of supplying the electric power to the electric motor, and a battery heater H that can be driven by electric power supplied from an external power source and heats the battery.

Abstract: A sheet-type metamaterial includes: a film-shaped dielectric substrate; a first and second wire array formed on the dielectric substrate's front surface and back surface respectively. The first wire array includes elongated metallic first cut wires of a length aligned in a y-axis direction with a gap g therebetween and in an x-axis direction with space s therebetween. The second wire array includes second cut wires having the same shape as first cut wires and aligned so as to overlap first cut wires and to be symmetric with the first cut wires. With a design frequency set at 0.51 THz, the dielectric substrate's thickness d is set at about 50 ?m, space s is set at about 361 ?m, gap g is set at about 106 ?m, and the length of first and second cut wires is set at a length approximate to a value to generate resonance at a working frequency.

Abstract: A sheet-type metamaterial of a film configuration to exhibit a figure of merit (FOM) exceeding 300 in a terahertz wave band. A film-shaped dielectric substrate has a front surface on which a first wire array is formed, and a back surface on which a second wire array is formed. The first wire array includes elongated metallic first cut wires of a predetermined length l aligned in a y-axis direction with a gap g therebetween and in an x-axis direction with space s therebetween. The second wire array includes second metallic cut wires having the same shape as the first cut wires and aligned to overlap the first cut wires. With a thickness d of the dielectric substrate set at about 50 ?m, the length l of the first cut wire and the second cut wire is a length approximate to a value to generate resonance at a design frequency.

Abstract: A wire grid device having transmission power characteristics and a power extinction ratio in a terahertz wave band that cannot be achieved conventionally. A cutout is formed between one end and an opposite end of a rectangular metal thin plate to form a plurality of grid plates each having an elongated grid part between the one end and the opposite end. The grid plates are stacked in such a manner that the grid parts of the grid plates are spaced at a given interval and face each other, thereby forming a grid plate stack. In this case, spacers are inserted between one ends and between opposite ends of adjacent ones of the grid plates to form parallel flat plates configured by the grid parts. The grid plate stack forming the parallel flat plates operates as a polarizer for a terahertz wave band.

Abstract: A sheet-type metamaterial includes: a film-shaped dielectric substrate; a first and second wire array formed on the dielectric substrate's front surface and back surface respectively. The first wire array includes elongated metallic first cut wires of a length aligned in a y-axis direction with a gap g therebetween and in an x-axis direction with space s therebetween. The second wire array includes second cut wires having same shape as first cut wires and aligned so as to overlap first cut wires and to be symmetric with the first cut wires. With a design frequency set at 0.51 THz, the dielectric substrate's thickness d is set at about 50 ?m, space s is set at about 361 ?m, gap g is set at about 106 ?m, and the length of first and second cut wires is set at a length approximate to a value to generate resonance at a working frequency.

Abstract: A sheet-type metamaterial of a film configuration to exhibit a figure of merit (FOM) exceeding 300 in a terahertz wave band. A film-shaped dielectric substrate has a front surface on which a first wire array is formed, and a back surface on which a second wire array is formed. The first wire array includes elongated metallic first cut wires of a predetermined length l aligned in a y-axis direction with a gap g therebetween and in an x-axis direction with space s therebetween. The second wire array includes second metallic cut wires having the same shape as the first cut wires and aligned to overlap the first cut wires. With a thickness d of the dielectric substrate set at about 50 ?m, the length l of the first cut wire and the second cut wire is a length approximate to a value to generate resonance at a design frequency.

Abstract: Achieve an extinction ratio in the approximate 10?6 class for intensity transmittance in the terahertz band with one element. A wire grid device configured from layering a plurality of film substrates each formed from a rectangular polymer film wherein a narrow rectangular metal thin plate is formed in the approximate center of one face thereof. By having the width of the metal thin plate be approximately 1.0 mm, the length of the metal thin plate be approximately 12.0-30 mm, and the thickness of the film substrate be approximately 0.5-50 ?m, it is possible to easily achieve an extinction ratio in the approximate 10?6 class for intensity transmittance in the terahertz band with one element.

Abstract: A method for outputting an index for determining a condition of a blood vessel includes acquiring a diastolic blood pressure for each of upper and lower limbs of a living body, calculating a ratio of the diastolic blood pressure acquired in the acquiring step of the lower limb to the diastolic blood pressure acquired in the acquiring step of the upper limb, and outputting the ratio of the diastolic blood pressures calculated in the calculating step.

Abstract: Optical axis as central axis is defined as z-axis, and axes perpendicular to z-axis are defined as x- and y-axis. Metallic flat plates are formed parallel to x-z plane to overlap each other and be separated by a given distance. Multiple flat plates except the top flat plate and bottom flat plate are each provided with multiple through holes. Central flat plates are each provided with through holes of a first radius. Intermediate flat plates arranged between central flat plate and top flat plate and between central flat plate and bottom flat plate are each provided with through holes of a second radius smaller than first radius. Second radius of through holes formed in an intermediate flat plate arranged in a position farther from central flat plate is smaller than second size of through holes formed in an intermediate flat plate arranged in a position closer to central flat plate.

Abstract: A wire grid device having transmission power characteristics and a power extinction ratio in a terahertz wave band that cannot be achieved conventionally. A cutout is formed between one end and an opposite end of a rectangular metal thin plate to form a plurality of grid plates each having an elongated grid part between the one end and the opposite end. The grid plates are stacked in such a manner that the grid parts of the grid plates are spaced at a given interval and face each other, thereby forming a grid plate stack. In this case, spacers are inserted between one ends and between opposite ends of adjacent ones of the grid plates to form parallel flat plates configured by the grid parts. The grid plate stack forming the parallel flat plates operates as a polarizer for a terahertz wave band.

Abstract: A biological information displaying apparatus includes: a calculator which is configured to calculate measurement values of parameters based on a plurality of biological signals obtained by an acquiring unit, the parameters including: sclerosis parameters relating to arterial sclerosis; and stenosis and/or occlusion parameters relating to arterial stenosis and/or occlusion; a display which is configured to display information; and a display controller which is configured to produce different radar charts of the sclerosis parameters and the stenosis and/or occlusion parameters, and which is configured to display the measurement values of the parameters on the display, on respective one of line segments that radially extend from a center in each of the radar charts, while plotting each of the measurement values of corresponding parameters at a position that is remoter from the center as a clinical value is worse.

Abstract: A rehabilitation assistance system includes: a first display apparatus which is to be attached to a head of a patient, and which enables a body portion of the patient to be seen; and a display controller which causes an index image that functions as an index for a rehabilitation motion, to be displayed on the first display apparatus.

Abstract: A rehabilitation assistance system includes: a stimulation electrode which is to be placed on a part of a body of a patient; a placement position storing section which stores placement position information indicative of a position where the stimulation electrode is to be placed; and a guidance information providing section which provides guidance information for guiding the stimulation electrode to the position based on the placement position information, to a user.

Abstract: A rehabilitation assistance system includes a peg board, a peg to be placed on the peg board by a subject, and a position information acquisition unit that acquires position information indicating a position of the peg relative to a predetermined position on the peg board. The position information acquisition unit includes a sensor provided on at least one of the peg and the peg board, and the position information acquisition unit acquires the position information based on an output from the sensor.

Abstract: Achieve an extinction ratio in the approximate 10?6 class for intensity transmittance in the terahertz band with one element. A wire grid device configured from layering a plurality of film substrates each formed from a rectangular polymer film wherein a narrow rectangular metal thin plate is formed in the approximate center of one face thereof. By having the width of the metal thin plate be approximately 1.0 mm, the length of the metal thin plate be approximately 12.0-30 mm, and the thickness of the film substrate be approximately 0.5-50 ?m, it is possible to easily achieve an extinction ratio in the approximate 10?6 class for intensity transmittance in the terahertz band with one element.

Abstract: Optical axis as central axis is defined as z-axis, and axes perpendicular to z-axis are defined as x- and y-axis. Metallic flat plates are formed parallel to x-z plane to overlap each other and be separated by a given distance. Multiple flat plates except the top flat plate and bottom flat plate are each provided with multiple through holes. Central flat plates are each provided with through holes of a first radius. Intermediate flat plates arranged between central flat plate and top flat plate and between central flat plate and bottom flat plate are each provided with through holes of a second radius smaller than first radius. Second radius of through holes formed in an intermediate flat plate arranged in a position farther from central flat plate is smaller than second size of through holes formed in an intermediate flat plate arranged in a position closer to central flat plate.

Abstract: A rehabilitation assistance system includes a peg board, a peg to be placed on the peg board by a subject, and a position information acquisition unit that acquires position information indicating a position of the peg relative to a predetermined position on the peg board. The position information acquisition unit includes a sensor provided on at least one of the peg and the peg board, and the position information acquisition unit acquires the position information based on an output from the sensor.

Abstract: A z-axis is defined as an optical axis and axes perpendicular to the z-axis are defined as an x-axis and a y-axis. Multiple metal plate pieces each have multiple groove portions formed in the direction of the x-axis. An outer shape of the metal plate pieces are such that the respective cross sections of the metal plate pieces are parallel to x-z planes at given intervals of a lens along the y-axis from a lower edge to a center and from the center to an upper edge. A metal dielectric lens is formed by laminating the metal plate pieces such that the metal plate pieces are arranged parallel to the x-z planes at the given intervals. Thus a refractive index responsive to the number of the groove portions, and the width and the depth of the groove portion can be obtained. A resultant structure causes visible light to pass therethrough.

Abstract: A biological information displaying apparatus includes: a calculator which is configured to calculate measurement values of parameters based on a plurality of biological signals obtained by an acquiring unit, the parameters including: sclerosis parameters relating to arterial sclerosis; and stenosis and/or occlusion parameters relating to arterial stenosis and/or occlusion; a display which is configured to display information; and a display controller which is configured to produce different radar charts of the sclerosis parameters and the stenosis and/or occlusion parameters, and which is configured to display the measurement values of the parameters on the display, on respective one of line segments that radially extend from a center in each of the radar charts, while plotting each of the measurement values of corresponding parameters at a position that is remoter from the center as a clinical value is worse.