Abstract: A clamp-on type ultrasonic flowmeter which is detachably attached to an outer wall of cylindrical piping is provided. An ultrasonic signal is transmitted to the piping from one of the first and the second ultrasonic devices, a plate wave corresponding to the ultrasonic signal is generated, and an ultrasonic signal corresponding to the plate wave is received by the other ultrasonic device. A pipe wall thickness of the piping and a frequency of the ultrasonic signal are in a state in which a plate wave of a low order asymmetric mode is significantly excited in the piping. A flow rate is calculated corresponding to phase velocity characteristics of the low order asymmetric mode.

Abstract: An optical fiber having a graded index (GI)-type core refractive index profile in which a propagation mode can propagate Z (Z is an integer of 2 or more) or more is provided. In the optical fiber, an ?-parameter is a value in which a propagation constant mutual difference is 1000 rad/m or less in a propagation mode group of a mode group M (M is M=2p+l?1 and 3 or more when a propagation mode is denoted by LPlp).

Abstract: The optical fiber according to the present disclosure is an optical fiber having a pure silica core which is a step index core through which an LPm1 mode with an effective area of 250 ?m2 or more is propagated by setting a relative refractive index difference to 0.60% or less, considering an effective cutoff condition, and only 2 or more modes or the LPm1 mode are propagated, with the optical fiber as the transmission line.

Abstract: An optical amplifier of the present disclosure includes an optical resonator that includes an amplification fiber capable of amplifying signal light having one or more propagation modes and resonates at least one propagation mode of the signal light amplified by the amplification fiber; an excitation light source that outputs excitation light for exciting the amplification fiber; and a multiplexer that multiplexes the signal light and the excitation light, in which the optical resonator includes a gain clamp setting unit which sets gain clamp for at least one propagation mode out of a plurality of propagation modes resonating in the optical resonator.

Abstract: A differential mode attenuation compensator includes a first multi-mode optical fiber and a third multi-mode optical fiber in which a plurality of propagation modes propagate in a wavelength of a propagating optical signal; and a second multi-mode optical fiber including a core and a clad and arranged with a central axis aligned between the first multi-mode optical fiber and the third multi-mode optical fiber, in which each loss in the plurality of propagation modes is different in the first multi-mode optical fiber and the third multi-mode optical fiber.

Abstract: An optical transmission system according to the present disclosure is a mode multiplexed optical transmission system using a multi-mode optical fiber in which a plurality of propagation modes propagate as a transmission line, the optical transmission system including an optical fiber transmission line (83) that includes an optical fiber with two or more propagation modes; and a plurality of mode converters (91) that are configured to generate mode coupling between at least one pair of the propagation modes, in which a variation in an installation interval of the plurality of mode converters (91) is equal to or less than a threshold value determined by the transmission line length (Lt) of the optical fiber transmission line (83).

Abstract: An object is to improve noise performance of a tire while enhancing movement performance thereof. At least one of the land portions (20) includes an outer wall surface (30) positioned on a vehicle outer side, an inner wall surface (31) positioned on a vehicle inner side, a tread surface (32) on an outer side in a tire radial direction, an outer edge (33) of the tread surface (32) in contact with the outer wall surface (30), and an inner edge (34) of the tread surface (32) in contact with the inner wall surface (31). The tread surface (32) is formed in a convex shape which is smoothly curved between the outer edge (33) and the inner edge (34) and which has a top portion (43) most protruded outward in the tire radial direction, in a cross section of the land portion (20) in a tire width direction.

Abstract: A multicore fiber includes a plurality of unit multicore fibers each including: a plurality of core portions; and a clad portion which is formed in an outer circumference of the core portions and has a refractive index lower than a maximum refractive index of the core portions. The plurality of the core portions have substantially same refractive index profile and different group delays at same wavelength in same propagation mode. The core portions of the multicore fiber are configured so that the core portions of the plurality of the unit multicore fibers are connected in cascade, a maximum value of differential group delays between the core portions of the multicore fiber is smaller than a reduced value of a maximum value of differential group delays between the core portions of each unit multicore fiber as a value in terms of a length of the multicore fiber.

Abstract: An exemplary embodiment provides an information processing apparatus configured to be capable of communicating data with another information processing apparatus present within a prescribed range. The information processing apparatus includes a transmission and reception portion configured to receive information for communication from another information processing apparatus. The information for communication includes position information relating to an information processing apparatus which is a source of transmission of the information for communication. The information processing apparatus further includes a display portion. A display control module is configured to perform display processing based on a first distance calculated based on the position information relating to the information processing apparatus which is the source of transmission of the information for communication and position information relating to an apparatus including the display control module.

Abstract: A multicore fiber includes a plurality of unit multicore fibers each including: a plurality of core portions; and a clad portion which is formed in an outer circumference of the core portions and has a refractive index lower than a maximum refractive index of the core portions. The plurality of the core portions have substantially same refractive index profile and different group delays at same wavelength in same propagation mode. The core portions of the multicore fiber are configured so that the core portions of the plurality of the unit multicore fibers are connected in cascade, a maximum value of differential group delays between the core portions of the multicore fiber is smaller than a reduced value of a maximum value of differential group delays between the core portions of each unit multicore fiber as a value in terms of a length of the multicore fiber.

Abstract: An object is to improve noise performance of a tire while enhancing movement performance thereof. At least one of the land portions (20) includes an outer wall surface (30) positioned on a vehicle outer side, an inner wall surface (31) positioned on a vehicle inner side, a tread surface (32) on an outer side in a tire radial direction, an outer edge (33) of the tread surface (32) in contact with the outer wall surface (30), and an inner edge (34) of the tread surface (32) in contact with the inner wall surface (31). The tread surface (32) is formed in a convex shape which is smoothly curved between the outer edge (33) and the inner edge (34) and which has a top portion (43) most protruded outward in the tire radial direction, in a cross section of the land portion (20) in a tire width direction.

Abstract: An exemplary embodiment provides an information system, including a plurality of information processing apparatuses, each information processing apparatus capable of communicating data with one another within a prescribed range, and a server capable of communicating data with each information processing apparatus.

Abstract: An exemplary embodiment provides an information processing apparatus capable of communicating data with another information processing apparatus present within a prescribed range. The information processing apparatus includes a data transmission and reception portion configured to transmit and receive data to and from another information processing apparatus and a display control module configured to perform display processing based on received data. The display control module is configured to be able to set information for rejecting execution of display processing based on the data received from another information processing apparatus.

Abstract: An exemplary embodiment provides an information processing apparatus configured to be capable of communicating data with another information processing apparatus present within a prescribed range. The information processing apparatus includes a transmission and reception portion configured to receive information for communication from another information processing apparatus. The information for communication includes position information relating to an information processing apparatus which is a source of transmission of the information for communication. The information processing apparatus further includes a display portion. A display control module is configured to perform display processing based on a first distance calculated based on the position information relating to the information processing apparatus which is the source of transmission of the information for communication and position information relating to an apparatus including the display control module.

Abstract: An exemplary embodiment provides an information system, including a plurality of information processing apparatuses, each information processing apparatus capable of communicating data with one another within a prescribed range, and a server capable of communicating data with each information processing apparatus.

Abstract: A multi-function portable health and beauty device which can be easily carried and which includes treatment members used to enlarge the area of the device which makes contact with the areas of the body to be treated to promote circulation of the blood and burning of fat. The device includes a base which has a central recessed part into which the areas to be treated can be placed; a drive mechanism mounted on the base; and rotating treatment members which are installed on the base so that they are generally parallel to the drive mechanism and so that they interlock with the drive mechanism and rotate. Expansion and contraction members are also provided at both sides of the recessed part of the base and are supplied with air using an air supply source. A vibration mechanism is also provided to vibrate the inside of the recessed part of the base or the rotating treatment members.

Abstract: A health and beauty massage device whose multiple treatment members make rubbing contact evenly and efficiently which promotes circulation of the blood and burns fat in the areas of the body to be treated. The health and beauty massage device is configured so that multiple treatment members are disposed on a frame body which is provided with a recessed part into which the areas of the human body to be treated are placed or inserted. At the same time, a linking means which links each of the treatment members is disposed between the installation shafts of the adjacent pairs of treatment members. The treatment members are interlocked with at least one drive mechanism and all of the treatment members are rotated at the same time.

Abstract: A suit-type cosmetic air massage device for providing air pressuring massage upon a human whole body. To provide air pressuring massage, suit-shaped parts are made to cover a human whole body, and can be separated into an upper suit-shaped part and a lower suit-shaped part. And plural air bags are symmetrically installed within the left and right side from the position corresponding to the hand region to the position corresponding to the shoulder regions of the upper suit-shaped part, and from the position corresponding to the feet parts to the waist part of the lower suit-shaped part. These air bags are divided into the first, second, third and fourth group, and each air bag in each group can be supplied with air simultaneously or independently in order from connecting with the intake/exhaust instrument by an intaking/exhausting hose.

Abstract: A chair-type air massage device which is capable of providing air massage to a user's whole body in a reclined position. The air massage device includes a backrest pivotally joined with a seat. Armrests are secured to both sides of the seat. A footrest is joined to the front end of the seat and can be moved between a projected position and a retracted position. Air bags for a neck massage, air bags for a back massage and air bags for a waist massage are disposed on the backrest. Further, air bags for a buttocks massage are disposed on the seat. Air bags for a thigh massage are positioned between armrests on the seat. Air massage can be provided to a user's whole body in a reclined position by supplying and exhausting compressed air to each of the air bags to thereby expand and contract each of the air bags.

Abstract: A chair-type air massage device which is capable of providing air massage to a user's legs in comfortable positions such as a reclined position or a sitting position. The air massage device includes a backrest pivotally joined with a seat. A footrest is joined to the front end of the seat and can be moved between a forwardly-projecting or extended position and a retracted position. A number of air bags for providing a leg massage are disposed on the footrest. When the footrest is in the extended position, a user's legs may be oriented approximately horizontally and compressed air may be supplied and exhausted to and from the air bags so as to cause the air bags to expand and contract and thus massage the user's legs in a reclined position.