Abstract: A wavelength dispersion amount estimation method, a wavelength dispersion compensation circuit, and a receiving device which rapidly estimate and set a wavelength dispersion amount to compensate with high accuracy at the receiving device which compensates waveform distortion at an optical fiber transmission path.

Abstract: The present invention is directed to a nonaqueous pressure-sensitive adhesive that may be used in medicinal tape preparations for percutaneous absorption. The adhesive may comprise a copolymer obtained by copolymerization of a (meth)acrylic monomer having an acetoacetyl group in the molecule and one or more monomers from among other (meth)acrylic monomers without acetoacetyl groups and copolymerizable vinyl monomers, in a nonaqueous solvent. Suitable (meth)acrylic monomers having an acetoacetyl group in the molecule are acetoacetoxyalkyl methacrylates, and especially 2-acetoacetoxyethyl methacrylate. The pressure-sensitive adhesive of the invention uses no polyamine derivatives, isocyanate compounds, polyvalent metal chelate compounds, etc., as crosslinking agents, and therefore toxicity is not a concern and skin is not irritated. A medicinal tape preparation for percutaneous absorption of the invention has superior adhesive strength and cohesive strength, and is highly safe with low skin irritation.

Abstract: Provided are a carbon fibre thermoplastic resin prepreg which is a carbon fibre prepreg obtained by impregnating a PAN-based carbon fibre in which the average fibre fineness of a single fibre is 1.0 dtex to 2.4 dtex with a thermoplastic resin, wherein the thermoplastic resin satisfies 20?(FM/FS)?40 (where FM: flexural modulus (MPa) of a resin sheet comprising only the thermoplastic resin, and FS: flexural strength (MPa) of the resin sheet), a method for manufacturing the same, and a carbon fibre composite material employing the carbon fibre prepreg.

Abstract: A polarization state of a transmission signal can be changed at a high speed based on a symbol-rate By switching a first switch, a second switch, and a third switch with time, one of an X-polarized wave_I-signal as a Y-polarized wave_I-signal, a signal caused by performing logical inversion for an X-polarized wave_I-signal, an X-polarized wave_Q-signal and a signal caused by logical inversion for an X-polarized wave_Q-signal is input to a second modulator. Further, by switching the first switch, the second switch and the third switch with time, the second modulator is input one of the X-polarized wave_I-signal as the Y-polarized wave_Q-signal, the X-polarized wave_I-signal, the signal caused by performing logical inversion for the X-polarized wave_I-signal, the X-polarized wave_Q-signal and the signal caused by performing logical inversion for the X-polarized wave_Q-signal. Thereby, a polarization state of a transmission signal can be changed at high speed based on a symbol-rate speed.

Abstract: To enable signal position detection, frequency offset compensation, clock offset compensation, and chromatic dispersion amount estimation in a communication system based on coherent detection using an optical signal, even on a signal having a great offset in an arrival time depending on a frequency due to chromatic dispersion. An optical signal transmitting apparatus generates specific frequency band signals having power concentrated on two or more specific frequencies and transmits a signal including the specific frequency band signals. An optical signal receiving apparatus converts a received signal into a digital signal, detects positions of the specific frequency band signals from the converted digital signal, estimates frequency positions of the detected specific frequency band signals, and detects a frequency offset between an optical signal receiving apparatus and an optical signal transmitting apparatus.

Abstract: When a circuit that calculates a frequency offset using a shape of a frequency spectrum is implemented by hardware, the circuit size can be reduced.

Abstract: A synthetic resin cup container including two members: a cup body having a cylindrical shape and a bottom disposed at a lower end of a round peripheral sidewall of this cup body, and a flange unit including a fitting cylinder and a brim-like flange, an inner edge portion of the flange being integrally connected to an upper end of the fitting cylinder, wherein the flange unit is detachably fitted in an upper portion of the cup body by fitting the fitting cylinder in an upper portion of the peripheral sidewall.

Abstract: In order to compensate for chromatic dispersion caused by optical fiber transmission in a communication system with coherent detection using optical signals, specific frequency band signals are used to enable estimation of a chromatic dispersion value.

Abstract: Provided is a frequency offset estimation apparatus that appropriately estimates and compensates for a frequency offset of a received signal when estimating the frequency offset which is the difference between a carrier frequency of the received signal and the frequency of an output signal of a local oscillator.

Abstract: There is provided a torque detecting device for providing a highly accurate torque signal, and an electric power steering device using the torque detecting device. A torque sensor is provided with a first coil pair and a second coil pair, which detect a relative displacement between an input shaft and an output shaft by corresponding the relative displacement to a change in impedance. Magnetization signal generating units supply exciting currents with different magnetization frequencies to the first coil pair and a second coil pair, respectively. The magnetization frequency difference is set to 3.5 kHz or higher. Moreover, low-pass filters for intercepting passage of a frequency equivalent to the magnetization frequency difference are deployed in signal processing circuits respectively.

Abstract: A technical problem of this invention especially in the case of large-size bottles is to form a grip, without changing the bottle shape to a large extent, so that the body can be firmly held. The object of this invention is to provide a synthetic resin square bottle that can be used reliably because the bottle can be held firmly with a hand. A major means of solving the problem is a synthetic resin square bottle comprising a body having a rectangular shape in a plane cross-section and a groove-like waist portion disposed at a middle height of the bottle, wherein a pair of recessed portions for use as finger stops are formed in respective long side walls of said rectangular body over a predetermined area ranging from said waist portion downward to ensure that a plural number of fingers can be placed in at least one recessed portion for a finger stop purpose, and wherein a grip for holding the bottle is formed from both the pair of recessed portions and the waist portion.

Abstract: An electroplated wheel comprises a metal base formed to a disc shape and rotationally driven about a rotational axis and a superabrasive grain layer formed to have numerous superabrasive grains fixed by plating on a belt section that extends in a predetermined width on an outer peripheral portion of the metal base. In the electroplated wheel, a plurality of masking portions having no superabrasive grains electrodeposited thereat are formed of gel adhesive fixed as dots to be larger than the superabrasive grains by a dispenser at intersection points of a plurality of concentric array circles imaginarily drawn concentrically of the rotational axis to divide the belt section at equal intervals and a plurality of width-direction array lines imaginarily drawn from one end toward the other end of the belt section to divide the belt section at equal intervals in a circumferential direction.

Abstract: The purpose of the present invention is to provide an interconnector for solar cells, which reduces the stress acting on a solar cell and suppresses warping and cracking of the solar cell. An interconnector for solar cells of the present invention is characterized by comprising an electrically conductive wire part and a surface layer that is formed on at least one wide surface of the electrically conductive wire part. The interconnector for solar cells is also characterized in that the surface layer has a function of reducing the stress that is caused by the difference between the thermal expansion coefficient of the electrically conductive part and the thermal expansion coefficient of a solar cell, said stress being generated when the interconnector is joined to the solar cell.

Abstract: An abnormality diagnosing method is provided for a torque detecting device and an electric power steering device is provided using the torque detecting device. Immediately after the power supply is turned on and before steering auxiliary control is started, initial diagnosis is performed to determine that each monitoring block for monitoring an abnormality of a signal processing circuit constituting a torque detecting device operates normally. The initial diagnosis determines that a monitoring block is operating normally, by inputting a normal signal and an abnormal signal to the monitoring block alternately, and finding that the monitoring block carries out normal diagnosis when it receives the normal signal and that it carries out abnormal diagnosis when it receives the abnormal signal. Once all of the monitoring blocks are determined as normal, the steering auxiliary control based on a steering torque detected by the torque detecting device is started.

Abstract: A technical problem of this invention especially in the case of large-size bottles is to form a grip, without changing the bottle shape to a large extent, so that the body can be firmly held. The object of this invention is to provide a synthetic resin square bottle that can be used reliably because the bottle can be held firmly with a hand. A major means of solving the problem is a synthetic resin square bottle comprising a body having a rectangular shape in a plane cross-section and a groove-like waist portion disposed at a middle height of the bottle, wherein a pair of recessed portions for use as finger stops are formed in respective long side walls of said rectangular body over a predetermined area ranging from said waist portion downward to ensure that a plural number of fingers can be placed in at least one recessed portion for a finger stop purpose, and wherein a grip for holding the bottle is formed from both the pair of recessed portions and the waist portion.

Abstract: A wavelength dispersion amount estimation method, a wavelength dispersion compensation circuit, and a receiving device which rapidly estimate and set a wavelength dispersion amount to compensate with high accuracy at the receiving device which compensates waveform distortion at an optical fiber transmission path.

Abstract: A wavelength dispersion amount estimation method, a wavelength dispersion compensation circuit, and a receiving device which rapidly estimate and set a wavelength dispersion amount to compensate with high accuracy at the receiving device which compensates waveform distortion at an optical fiber transmission path.

Abstract: A centrifugal blower includes a centrifugal fan; an electric motor that rotationally drives the centrifugal fan; a fan case that has an air inlet and an air outlet and that internally accommodates the centrifugal fan; and an electric motor case (8) that has a cylinder (6) accommodating the electric motor and a flange portion (7) extending radially outward from the cylinder (6) and that is fitted to the fan case. The flange portion (7) is provided with a ring-shaped rib portion (20) that protrudes from the flange portion (7); the ring-shaped rib portion (20) is provided with a plurality of slits (22a and 22b) that extend from the flange portion (7) in the axial direction of the cylinder (6); and the flange portion (7) between the ring-shaped rib portion (20) and the cylinder (6) is inclined in a circumferential direction toward the slits (22a and 22b).

Abstract: A roughened cured material allows reduction of surface roughness and increase in adhesive strength between a cured object and a metal layer. A roughened cured material is obtained by advancing curing of an epoxy resin material to obtain a preliminary-cured material and conducting roughening treatment on a surface of the preliminary-cured material. The epoxy resin material contains an epoxy resin, a curing agent, and a silica whose mean particle diameter is not smaller than 0.2 ?m but not larger than 1.2 ?m. When a roughening-treated surface of the roughened cured material is photographed with a scanning electron microscope, in a 5 ?m×5 ?m sized area of the roughening-treated surface in a photographed image, the number of particles of the silica that are exposed from the roughening-treated surface and whose exposed portions have a maximum length of 0.3 ?M or longer in the image is not greater than 15.