Abstract: Provided is a separation and recovery apparatus for continuously separating and recovering, from a resin mixture containing a resin containing a hydrolyzable polymer and a resin containing a nonhydrolyzable polymer, a hydrolytic component a of the hydrolyzable polymer A and the nonhydrolyzable polymer B, the apparatus including: a crushing unit that crushes the resin mixture a melting/discharging unit that melts a crushed product obtained by the crushing unit to form a fluid and discharges the fluid at a high pressure; and a hydrothermal reaction treatment unit that continuously subjects the fluid discharged from the melting/discharging unit to a hydrothermal reaction treatment, wherein, in the melting/discharging unit, the hydrolyzable polymer A is hydrolyzed, and the hydrolytic component a thereof is dissolved and transferred into water permeating a sintered alloy diaphragm, thereby separating the nonhydrolyzable polymer B.

Abstract: A directional coupler includes a first main line, a second main line, first sub-lines, second sub-lines, a first output terminal, a second output terminal, a first inductor, and a second inductor. The first output terminal is configured to be coupled to the first sub-lines. The first output terminal is configured to output a first detection signal corresponding to a first radio-frequency signal transferred through the first main line. The second output terminal is configured to be coupled to the second sub-lines. The second output terminal is configured to output a second detection signal corresponding to a second radio-frequency signal transferred through the second main line. The first inductor is provided in a first signal path including the first output terminal. The second inductor is provided in a second signal path including the second output terminal.

Abstract: When a radio-frequency module is viewed in plan in a thickness direction of a mounting substrate, an electronic component overlaps an IC component. The electronic component includes four or more filters, each of which includes an input terminal and an output terminal. The IC component includes a first switch connected to the input terminals of at least four of the four or more filters and a second switch connected to the output terminals of the at least four filters. The input terminals of the at least four filters are in a first region including a center of the electronic component when viewed in plan in the thickness direction of the mounting substrate. The output terminals of the at least four filters are in a second region between the first region and a perimeter of the electronic component when viewed in plan in the thickness direction of the mounting substrate.

Abstract: A frontend circuit includes a wide-band filter, a transmit filter, and switches. The wide-band filter passes both the receive frequency band of a first communication frequency band and that of a second communication frequency band which is close to or overlaps that of the first communication frequency band. The transmit filter passes the transmit frequency band of the first or second communication frequency band. The switches are capable of simultaneously bringing, into conduction, at least two of multiple filters including the wide-band filter and the transmit filter. In carrier aggregation using the receive frequency bands of the first and second communication frequency bands, the switches simultaneously bring the wide-band filter and the transmit filter into conduction. Thus, in carrier aggregation using signals of multiple communication frequencies simultaneously in communication, attenuation of signals due to signal leakage in two receive frequency bands, which are close to each other, is suppressed.

Abstract: A frontend circuit includes a wide-band filter, a transmit filter, and switches. The wide-band filter passes both the receive frequency band of a first communication frequency band and that of a second communication frequency band which is close to or overlaps that of the first communication frequency band. The transmit filter passes the transmit frequency band of the first or second communication frequency band. The switches are capable of simultaneously bringing, into conduction, at least two of multiple filters including the wide-band filter and the transmit filter. In carrier aggregation using the receive frequency bands of the first and second communication frequency bands, the switches simultaneously bring the wide-band filter and the transmit filter into conduction. Thus, in carrier aggregation using signals of multiple communication frequencies simultaneously in communication, attenuation of signals due to signal leakage in two receive frequency bands, which are close to each other, is suppressed.

Abstract: [Object] To provide an electronic device and an electroacoustic conversion apparatus that can suppress noise. [Solving Means] According to the present disclosure, there is provided an electronic device including a switching element unit that applies a voltage based on a direct-current power supply to one end of an electroacoustic converter in response to a first pulse signal and applies a voltage based on the direct-current power supply to another end of the electroacoustic converter in response to a second pulse signal, and a delay circuit that generates a delay based on a communication frequency in at least one of the first pulse signal and the second pulse signal.

Abstract: A radio-frequency module includes a mount board, an antenna terminal and a ground terminal, a low-noise amplifier, a first inductor, and a second inductor. The mount board has a first principal surface and a second principal surface on opposite sides of the mount board from one another. The low-noise amplifier includes a transistor configured to amplify a signal. The first inductor is disposed on one of the first principal surface and the second principal surface of the mount board. The first inductor is connected to the antenna terminal. The second inductor is disposed on the other of the first principal surface and the second principal surface of the mount board. The second inductor is connected between the transistor and the ground terminal.

Abstract: An electric work vehicle includes a work implement, a battery, a motor driven by electric power supplied by the battery, a traveler driven by the motor, a hydraulic pump that is driven by the motor to supply oil to an operating mechanism of the work implement, a transmission to transmit motive power from the motor to the hydraulic pump, and a case that houses the transmission. The case is coupled to the motor, and the hydraulic pump his supported by the case.

Abstract: An electric work vehicle includes a travel battery, an auxiliary battery, a motor drivable on electric power supplied by the travel battery, a travel device drivable by the motor, a voltage converter positioned forward of the travel battery to step down a voltage of electric power from the travel battery and supply the electric power to the auxiliary battery, and a radiator positioned forward of the travel battery, wherein the voltage converter and the radiator are laterally next to each other in a plan view.

Abstract: A lift arm lifting and lowering mechanism cylinder case provided with a cylinder portion into which oil is fed, a piston slidable inside the cylinder portion to define a hydraulic chamber and receiving hydraulic pressure of the hydraulic chamber on a front surface, a safety valve provided to the piston to discharge the oil inside the hydraulic chamber to the outside when the hydraulic pressure of the hydraulic chamber becomes greater than or equal to a predetermined value, and a lift arm supported by the cylinder case and rotatable in conjunction with movement of the piston, in which the piston includes an oil passage allowing communication between a rear surface of the piston and the front surface, and the oil passage includes a containing portion provided to open on the axially front surface side and capable of containing the safety valve, and a non-containing portion provided on the axially rear surface side relative to the containing portion and incapable of containing the safety valve.

Abstract: A radio frequency (RF) module includes a board including a first principal surface and a second principal surface on opposite sides of the board, a filter including a first terminal and a second terminal, a first circuit, and a second circuit. The filter is disposed on the first principal surface. The first circuit is disposed on the second principal surface. In a plan view of the board, a first footprint of a first line and a second footprint of a second line at least partially overlap in the board. The first line connects the first terminal and the first circuit, and the second line connects the second terminal and the second circuit.

Abstract: A welding device for a plate laminated body according to an embodiment includes a welding torch, a chuck for gripping a plurality of laminated plates with a lamination direction being in a horizontal position, and at least one support extending along the lamination direction for supporting the plate laminated body from below.

Abstract: A welding device for a non-circular plate according to an embodiment includes a chuck for gripping and rotatably supporting a plurality of laminated non-circular plates, a welding torch for welding outer peripheral edge portions of the plurality of laminated non-circular plates, a stationary shield box, and a movable shield box which is position-adjustable with respect to the welding torch so as to form a shield space surrounding the welding torch with the stationary shield box.

Abstract: An electric work vehicle includes a body frame, a battery above the body frame, a motor drivable on electric power supplied by the battery, a travel device drivable by the motor, and a cooling fan positioned forward of the battery to send cooling air to the battery, wherein the body frame and the battery define a ventilation space therebetween, and the cooling fan extends in an up-down direction of a machine body to face both the battery and the ventilation space.

Abstract: A radio-frequency module supports carrier aggregation in which radio-frequency signals in a plurality of frequency ranges are simultaneously transmitted, simultaneously received, or simultaneously transmitted and received. The radio-frequency module includes a plurality of first filters, a plurality of second filters, a switch coupled to an antenna element and the plurality of first filters and configured to control connection and disconnection between the antenna element and each of the plurality of first filters, and a switch coupled to the antenna element and the plurality of second filters and configured to control connection and disconnection between the antenna element and each of the plurality of second filters. No combination of filters selected from both the plurality of first filters and the plurality of second filters are used for carrier aggregation.

Abstract: When a radio-frequency module is viewed in plan in a thickness direction of a mounting substrate, an electronic component overlaps an IC component. The electronic component includes four or more filters, each of which includes an input terminal and an output terminal. The IC component includes a first switch connected to the input terminals of at least four of the four or more filters and a second switch connected to the output terminals of the at least four filters. The input terminals of the at least four filters are in a first region including a center of the electronic component when viewed in plan in the thickness direction of the mounting substrate. The output terminals of the at least four filters are in a second region between the first region and a perimeter of the electronic component when viewed in plan in the thickness direction of the mounting substrate.

Abstract: Noise caused by switching is reduced using a simple configuration in a circuit amplifying a pulse signal using a switching amplifier. A control data output section outputs control data that instructs that a pulse width of each of a pair of pulse signals be modulated. A data replacement section replaces the control data with data for replacement different from the control data in the case where the control data is output that instructs that the modulation leading to approximately a same pulse width for the pair of pulse signals be performed. A pulse width modulation circuit performs the modulation on each of the pair of pulse signals in accordance with the data for replacement. A pair of switching amplifiers amplify the pair of pulse signals that have been subjected to the modulation.

Abstract: A lift arm lifting and lowering mechanism cylinder case provided with a cylinder portion into which oil is fed, a piston slidable inside the cylinder portion to define a hydraulic chamber and receiving hydraulic pressure of the hydraulic chamber on a front surface, a safety valve provided to the piston to discharge the oil inside the hydraulic chamber to the outside when the hydraulic pressure of the hydraulic chamber becomes greater than or equal to a predetermined value, and a lift arm supported by the cylinder case and rotatable in conjunction with movement of the piston, in which the piston includes an oil passage allowing communication between a rear surface of the piston and the front surface, and the oil passage includes a containing portion provided to open on the axially front surface side and capable of containing the safety valve, and a non-containing portion provided on the axially rear surface side relative to the containing portion and incapable of containing the safety valve.

Abstract: A module is provided with a substrate having a main surface, and each of one or more inductors that are disposed on the main surface of the substrate. A resin sealing portion seals the one or more inductors and covers the main surface of the substrate. A ground conductor is disposed on an outer peripheral side of the substrate with respect to entirety of the one or more inductors in a plan view. A plurality of linear conductors are disposed on the resin sealing portion. The plurality of linear conductors are disposed with gaps therebetween, such that the one or more inductors underlie at least one of the plurality of linear conductors in the plan view.

Abstract: A radio frequency module includes a switch circuit that includes selection terminals, a filter that allows the signal in the first frequency band to pass therethrough, a filter that allows the signal in the second frequency band to pass therethrough, a phase adjustment circuit that is connected to the selection terminal and the filter, and a phase adjustment circuit that is connected to the selection terminal and the filter. The filter includes an acoustic wave resonator that is formed on a substrate that has piezoelectricity. The filter includes an acoustic wave resonator that is formed on a substrate that has piezoelectricity. At least one of circuit elements that are included in the phase adjustment circuit is formed on the substrate. At least one of circuit elements that are included in the phase adjustment circuit is formed on the substrate.