Abstract: A leak detection system includes a substrate with a plurality of high-voltage contact and a plurality of low-voltage contacts positioned on the substrate. The plurality of low-voltage contacts is positioned on the substrate wherein a closest contact to each of the low-voltage contacts is a high-voltage contact. The plurality of high-voltage contact and the plurality of low-voltage contacts are electrically coupled to a logic device, which measures any change in current across at least one of the plurality of high-voltage contacts and at least one of the plurality of low-voltage contacts to detect a fluid leak in contact with the leak detection system.

Abstract: Technology is disclosed for a computing system with a printed circuit board having a top and bottom; an integrated circuit component coupled to the top of the board; a passive heat exchanger coupled to the top of the board and spaced from the integrated circuit component; at least one electronic component coupled to the printed circuit board below the top of the printed circuit board; and at least one heat pipe having an evaporator end adjacent the electronic component and extending away from the evaporator end along the bottom of the board to a condenser end above the top of the board, the condenser end being thermally coupled to the passive heat exchanger on the top of the board; wherein heat from electronic component is moved away from the electronic component and the integrated circuit component to the passive heat exchanger.

Abstract: A method for preparing hydrogen sulfide from sulfur dioxide by electrochemical reduction includes electrochemically reducing sulfur dioxide absorbed in an aqueous solution into gaseous hydrogen sulfide with a membrane electrode, resulting in efficient and selective conversion of the sulfur dioxide absorbed in the aqueous solution into the hydrogen sulfide to avoid a deactivation of a cathode due to colloidal sulfur produced on the cathode and adhesion onto a surface of the cathode, wherein the method is carried out at ambient temperature and normal pressure without addition of a reducing agent, having no waste salts produced, and is simple in operation, and is convenient for large-scale application.

Abstract: RS-232 data flow over a half duplex differential link between a KVM switch and a SCIM, which is attached to a RS-232 serial communication port of a target device. The half duplex differential link is a data communication link of two wires that carry one pair of half duplex differential signals. In a communication direction from the SCIM to the KVM switch, the SCIM encodes and transmits full RS-232 signals over the half duplex differential link to the KVM switch, which in turn decodes and restores the RS-232 signals to present same in a desired format. Likewise, in a communication direction from the KVM switch to the SCIM, the KVM switch encodes and transmits the RS-232 signals to the SCIM, which in turn decodes and outputs RS-232 signals to the target device.