Abstract: A close-end fuel cell and an anode bipolar plate thereof are provided. The anode bipolar plate includes an airtight conductive frame and a conductive porous substrate disposed within the airtight conductive frame. In the airtight conductive frame, an edge of a first side has a fuel inlet, and an edge of a second side has a fuel outlet. The conductive porous substrate has at least one flow channel, where a first end of the flow channel communicates with the fuel inlet, a second end of the flow channel communicates with the fuel outlet. The flow channel is provided with a blocking part near the fuel inlet to divide the flow channel into two areas.

Abstract: An uninterruptible power apparatus is coupled between a power grid and a load. The uninterruptible power apparatus includes a bypass path, a power conversion module, and a control module. The bypass path is coupled to the power grid through a grid terminal, and coupled to the load through a load terminal. The control module turns off a first thyristor and a second thyristor by injecting a second voltage into the load terminal during a forced commutation period. The control module calculates a magnetic flux offset amount based on an error amount between the second voltage and a voltage command, and provides a compensation command in response to the magnetic flux offset amount. The control module controls the DC/AC conversion circuit to provide a third voltage to the load terminal based on the compensation command and the voltage command.

Abstract: A cleaning process monitoring system, comprising: a cleaning container comprising an inlet for receiving a cleaning solution and an outlet for draining a waste solution; a particle detector coupled to the outlet and configured to measure a plurality of particle parameters associated with the waste solution so as to provide a real-time monitoring of the cleaning process; a pump coupled to the cleaning container and configured to provide suction force to draw solution through the cleaning system; a controller coupled to the pump and the particle detector and configured to receive the plurality of particle parameters from the particle detector and to provide control to the cleaning system; and a host computer coupled to the controller and configured to provide at least one control parameter to the controller.

Abstract: A receptacle connector adapted to be fixed to a casing of an electronic device and electrically connected to a circuit board for enabling the receptacle connector to be adapted to connect with a plug connector is provided. The receptacle connector includes an insulating body and a plurality of conductive terminals. The insulating body has a tunnel, and the tunnel extends from the outer side of the insulating body to the inner side of the insulating body, wherein a side of the tunnel is exposed at a top portion of the insulating body, and the insulating body is adapted to be fixed to the casing to cover the side of the tunnel, so that the tunnel is adapted to form a plug hole with the casing. The conductive terminals are disposed through the insulating body. A receptacle connector and an electronic device are also provided.

Abstract: Provided is a process of manufacturing a sheet for a membrane keyboard or keypad including placing a plastic film on a thermoplastic adhesive layer; adhering a release liner to the plastic film; placing the thermoplastic adhesive layer on a lower cutting mold; adhering the release liner to an upper mold; moving hollow cutting members through both the thermoplastic adhesive layer and the plastic film to cut them into thermoplastic adhesive sections and plastic sections respectively; removing the thermoplastic adhesive sections, the plastic sections, the release liner, and the upper mold from the lower cutting mold; replacing the lower cutting mold with a lower mold having a top sheet member; placing the thermoplastic adhesive sections on the sheet member; heating to secure the thermoplastic adhesive sections, the plastic sections, and the sheet member together; removing the upper mold; and removing the release liner from the plastic sections.

Abstract: A receptacle connector adapted to be fixed to a casing of an electronic device and electrically connected to a circuit board for enabling the receptacle connector to be adapted to connect with a plug connector is provided. The receptacle connector includes an insulating body and a plurality of conductive terminals. The insulating body has a tunnel, and the tunnel extends from the outer side of the insulating body to the inner side of the insulating body, wherein a side of the tunnel is exposed at a top portion of the insulating body, and the insulating body is adapted to be fixed to the casing to cover the side of the tunnel, so that the tunnel is adapted to form a plug hole with the casing. The conductive terminals are disposed through the insulating body. A receptacle connector and an electronic device are also provided.

Abstract: A protection circuit for a control board is provided. The protection circuit is suitable for being disposed on a light on tester that may output a test voltage to a display module. The protection circuit includes a control device and a voltage stabilizer. The control device includes a first switching element and a control element. The control element enables the first switching element to output an operating voltage. The voltage stabilizer includes a second switching element and an operation module. The operation module may control the second switching element according to the operating voltage, so as to switch on or switch off an input of the test voltage to the display module.

Abstract: A protection circuit for a control board is provided. The protection circuit is suitable for being disposed on a light on tester that may output a test voltage to a display module. The protection circuit includes a control device and a voltage stabilizer. The control device includes a first switching element and a control element. The control element enables the first switching element to output an operating voltage. The voltage stabilizer includes a second switching element and an operation module. The operation module may control the second switching element according to the operating voltage, so as to switch on or switch off an input of the test voltage to the display module.