Abstract: A physical quantity detection circuit includes a detection signal generation circuit that generates a detection signal according to a physical quantity based on an output signal of a physical quantity detection element that detects the physical quantity, an analog/digital conversion circuit that converts the detection signal into a digital signal, a reference voltage generation circuit that generates a reference voltage supplied to the analog/digital conversion circuit, and a failure diagnosis circuit that performs a failure diagnosis of the reference voltage generation circuit by monitoring the reference voltage and outputs a failure diagnosis signal indicating a result of the failure diagnosis, in which the failure diagnosis circuit performs the failure diagnosis at a predetermined timing different from a timing when the reference voltage varies temporarily according to an operation of the analog/digital conversion circuit.

Abstract: A physical quantity detection circuit including a differential amplification circuit that differentially amplifies a signal pair based on a first signal containing a first physical quantity component and a first vibration leakage component and a second signal containing a second physical quantity component having a phase opposite the phase of the first physical quantity component and a second vibration leakage component having the same phase as the phase of the first vibration leakage component, an adder circuit that adds the signal pair, a first synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the differential amplification circuit, a second synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the adder circuit, a physical quantity detection signal generation circuit that generates a physical quantity detection signal based on an output signal from the first synchronous wave

Abstract: A three-dimensional shape design system is a system for performing concurrent modeling of the same three-dimensional model by a plurality of designers. The method includes: a duplication unit configured to specify a part-to-be-verified which is a part of the three-dimensional model based on input made by the respective designers and duplicate shape information and coordinate information of the part-to-be-verified; a change unit configured to change the duplicated shape information based on the content of input by the respective designers; and a display control unit configured to display a shape based on the changed shape information and the three-dimensional model in a superimposed manner when the three-dimensional model is displayed on a display unit.

Abstract: An electric wire uses a thermoplastic fluororesin composition as an insulating layer covering a periphery of a conductor. The thermoplastic fluororesin composition includes a fluororubber, a fluororesin and a compatibilizer. The fluororesin includes a first fluororesin constituted by perfluoroalkoxy alkane having a melting point of 280° C. or more and 290° C. or less, and the compatibilizer is a terpolymer of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride. A weight ratio (%) of the fluororubber to the fluororesin ranges from 20:80 to 60:40, and the fluororubbers are crosslinked to one another by dynamic crosslinking.

Abstract: A physical quantity detection circuit including a differential amplification circuit that differentially amplifies a signal pair based on a first signal containing a first physical quantity component and a first vibration leakage component and a second signal containing a second physical quantity component having a phase opposite the phase of the first physical quantity component and a second vibration leakage component having the same phase as the phase of the first vibration leakage component, an adder circuit that adds the signal pair, a first synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the differential amplification circuit, a second synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the adder circuit, a physical quantity detection signal generation circuit that generates a physical quantity detection signal based on an output signal from the first synchronous wave

Abstract: A main rotor blade 1, which is the main rotor blade 1 for a high-velocity helicopter, includes: a blade root part 10 having a length of 30% or more of a rotor radius R; and a blade main body 20 continuous with the blade root part 10. Preferably, a cross-sectional shape of the blade root part 10 satisfies (x/a)m+(y/b)m=1 and a>b, where m: arbitrary number, x: chord length direction, and y: blade thickness direction.

Abstract: A physical quantity detection circuit includes a detection signal generation circuit that generates a detection signal according to a physical quantity based on an output signal of a physical quantity detection element that detects the physical quantity, an analog/digital conversion circuit that converts the detection signal into a digital signal, a reference voltage generation circuit that generates a reference voltage supplied to the analog/digital conversion circuit, and a failure diagnosis circuit that performs a failure diagnosis of the reference voltage generation circuit by monitoring the reference voltage and outputs a failure diagnosis signal indicating a result of the failure diagnosis, in which the failure diagnosis circuit performs the failure diagnosis at a predetermined timing different from a timing when the reference voltage varies temporarily according to an operation of the analog/digital conversion circuit.

Abstract: [Object] To appropriately make apparent the feature part of the object shape. [Solving Means] This technology moves each face in a normal direction of each face from data representing an object shape of a CAD model by discretizing a surface of the CAD model into a grid and arranging faces surrounded by discrete points, to thereby generate an expansion model or a contraction model of the object shape of the CAD model, considers that the surface of the expansion model or the contraction model is uniformly charged and solves a Laplace's equation for an electrostatic field on the surface according to a boundary element method to thereby determine a potential distribution on the surface of the expansion model or the contraction model, and detects a feature part of the object shape on the basis of the determined potential distribution.

Abstract: [Object] To provide a main rotor blade for a helicopter such as a main blade type helicopter, which may reduce a drag coefficient during high-velocity forward flight and which provides easy control. It is an object of the present invention to provide a helicopter including such a main rotor blade. [Solving Means] A main rotor blade 1, which is the main rotor blade 1 for a high-velocity helicopter, includes: a blade root part 10 having a length of 30% or more of a rotor radius R; and a blade main body 20 continuous with the blade root part 10. Preferably, a cross-sectional shape of the blade root part 10 satisfies (x/a)m+(y/b)m=1 and a>b, where m: arbitrary number, x: chord length direction, and y: blade thickness direction.

Abstract: An insulated electric wire includes a conductor and an insulating layer coated in periphery of the conductor. The insulating layer is made of a resin composition containing a base polymer and a flame retardant. The flame retardant is made of silane-treated aluminum hydroxide, aluminum hydroxide treated with a treatment agent other than a silane coupling agent and/or untreated aluminum hydroxide. The base polymer contains a polymer having a polar group. The resin composition contains the flame retardant, a content of which is more than 40 parts by mass and equal to or less than 80 parts by mass per 100 parts by mass of the base polymer. The resin composition contains the silane-treated aluminum hydroxide, a content of which is equal to or more than 10 parts by mass and equal to or less than 70 parts by mass per 100 parts by mass of the flame retardant.

Abstract: A physical quantity detection circuit including a differential amplification circuit that differentially amplifies a signal pair based on a first signal containing a first physical quantity component and a first vibration leakage component and a second signal containing a second physical quantity component having a phase opposite the phase of the first physical quantity component and a second vibration leakage component having the same phase as the phase of the first vibration leakage component, an adder circuit that adds the signal pair, a first synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the differential amplification circuit, a second synchronous wave-detection circuit that performs synchronous wave-detection on a signal based on an output signal from the adder circuit, a physical quantity detection signal generation circuit that generates a physical quantity detection signal based on an output signal from the first synchronous wave

Abstract: A failure determination circuit includes a switching circuit that receives a signal including an output voltage from a temperature sensor and a first reference voltage and outputs the signal in a time division manner, an A/D conversion circuit that A/D converts an output of the switching circuit, and a first determination circuit, and the first determination circuit determines a failure of the temperature sensor based on a signal based on a first digital signal obtained by A/D converting an output voltage from the temperature sensor by the A/D conversion circuit, a signal based on a second digital signal obtained by A/D converting the first reference voltage by the A/D conversion circuit, and temperature characteristics data based on a change in characteristics of the temperature sensor due to temperature and a change in characteristics of the first reference voltage due to temperature.

Abstract: An example of an information processing system includes a stationary type device, a hand-held type device, and a server. The stationary type device senses user information for evaluating health of a user. The hand-held type device transmits the user information sensed by the stationary type device and/or information calculated from the user information to the server as transmission information. The server transmits, to the hand-held type device, service data for providing the user with a network service in accordance with an evaluation result of health, indicated by the transmission information transmitted from the hand-held type device and/or calculated from the transmission information.

Abstract: An insulated electric wire includes a conductor and an insulating layer coated in periphery of the conductor. The insulating layer is made of a resin composition containing a base polymer and a flame retardant. The flame retardant is made of silane-treated aluminum hydroxide, aluminum hydroxide treated with a treatment agent other than a silane coupling agent and/or untreated aluminum hydroxide. The base polymer contains a polymer having a polar group. The resin composition contains the flame retardant, a content of which is more than 40 parts by mass and equal to or less than 80 parts by mass per 100 parts by mass of the base polymer. The resin composition contains the silane-treated aluminum hydroxide, a content of which is equal to or more than 10 parts by mass and equal to or less than 70 parts by mass per 100 parts by mass of the flame retardant.

Abstract: A thermoplastic fluororesin composite that is excellent in mechanical property and heat resistance, and an electric wire and a cable using the thermoplastic fluororesin composite are provided. A method of manufacturing a thermoplastic fluororesin composite includes: a step (double bond forming step) of kneading a mixture containing a fluoro-rubber, a compatibilizer and a crosslinking accelerator to form a double bond in the fluoro-rubber by dehydrofluorination reaction; a step (fluororesin kneading step) of kneading a first product generated in the double bond forming step and a fluororesin; and a step (dynamic crosslinking step) of kneading a second product generated in the fluororesin kneading step and a polyol crosslinker to dynamically crosslink the fluoro-rubber in the second product.

Abstract: An electric wire uses a thermoplastic fluororesin composition as an insulating layer covering a periphery of a conductor. The thermoplastic fluororesin composition includes a fluororubber, a fluororesin and a compatibilizer. The fluororesin includes a first fluororesin constituted by perfluoroalkoxy alkane having a melting point of 280° C. or more and 290° C. or less, and the compatibilizer is a terpolymer of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride. A weight ratio (%) of the fluororubber to the fluororesin ranges from 20:80 to 60:40, and the fluororubbers are crosslinked to one another by dynamic crosslinking.

Abstract: A halogen-free resin composition is disclosed comprising a base polymer. In the halogen-free resin composition, the content of a compound including magnesium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer; and the content of a compound including calcium is equal to or less than 30 parts by mass relative to 100 parts by mass of the base polymer. The halogen-free resin composition has an oxygen index of 20 or more. Preferably, the halogen-free resin composition further includes a heavy metal deactivator. Preferably, the base polymer includes a polymer that has a melting point of 120° C.

Abstract: A circuit for a physical quantity detection device includes a drive unit that generates a drive signal that causes an vibrator to vibrate, a detection unit that detects a detection signal outputted from the vibrator based on the drive signal, a passive filter which has a filter characteristic in which a cutoff frequency is lower than a detuning frequency and a cutoff frequency band contains a frequency band higher than the cutoff frequency and to which a signal from the detection unit is inputted, and an amplification unit that amplifies a signal from the passive filter.

Abstract: A pressure sensor includes an insulator having a hollow portion; and a plurality of electrical conductors that have been disposed apart from each other along the inner surface facing the hollow portion of the insulator. The insulator comprises an insulating resin composition made of a material which does not need cross-linking, the plurality of electrical conductors comprise an electroconductive resin composition made of a material which does not need cross-linking, the insulating resin composition and the electroconductive resin composition comprise a process oil, and a mass percentage concentration of the process oil in the electroconductive resin composition is higher than a mass percentage concentration of the process oil in the insulating resin composition.

Abstract: A composite sensor includes a first sensor outputting a first sensor signal, a second sensor outputting a second sensor signal, a circuit board electrically connected to the first and second sensors, and a mount member having one surface on which the first and second sensors and the circuit board are disposed. The first and second sensors have respective input terminals to which respective input signals are inputted, and have respective output terminals from which the first and second sensor signals are outputted. When a virtual straight line passing respective centers of the first and second sensors parallel to an arrangement direction of the sensors is defined, the respective input terminals of the first and second sensors are disposed in one of two regions divided by the virtual line, and the respective output terminals of the first and second sensors are disposed in a remaining one of the two regions.