Abstract: A negative pressure drainage system is disclosed, including a dressing for being applied to a wound surface of a patient; a collecting device, buried in the dressing for collecting a pressure at the dressing in real time to obtain pressure data; a receiving device, wirelessly connected with the collecting device, where the collecting device wirelessly is configured for transmitting the pressure data to the receiving device. Enabling the negative pressure drainage system to satisfy the above structure is beneficial to collecting the pressure data at the dressing in real time, thereby realizing real-time monitoring of a negative pressure at the wound surface.

Abstract: The present invention relates to construction machinery, and relates in particular to an operation device of a skid-steer loader, and a skid-steer loader. The operation device of a skid-steer loader can be disposed on a frame structure (3) of the skid-steer loader, and is located on a side of an operator cab (5) of the skid-steer loader. The operation device comprises a lift arm (16) comprising a clearance section (10). When the lift arm (16) is in a traveling position, the clearance section (10) is located in a region of the lift arm (16) adjacent to a side window of the operator cab. A top portion of the clearance section (10) is recessed toward a bottom portion of the frame structure (3) of the skid-steer loader. The operation device of the skid-steer loader can reduce the area on the side of the operator cab blocked by the lift arm, thereby increasing the peripheral vision of a driver.

Abstract: Bioreactors for production and recovery of medium chain carboxylates from organic biomass are disclosed. Methods for improved production and recovery of medium chain carboxylates from organic biomass are also disclosed. The bioreactors can be used as a chain-elongation bioreactor, and a method of use thereof results in improved production and recovery of medium chain carboxylates from organic biomass. The bioreactor includes a shell defined by one or more walls and a length, and a plurality of porous hollow fiber membranes placed inside the reactor for continuous liquid-liquid extraction, as well as granular activated carbon (GAC) as biocarriers. The plurality of hollow fiber membranes is mounted such that a percentage of the length of the shell remains unoccupied by the plurality of porous hollow fiber membranes.

Abstract: A LED linear constant power driver circuit comprises an AC power supply, a rectifier bridge, a LED light string, a master chip, a voltage adjustment resistance, a regulated capacitor, a compensation capacitor and a current adjustment resistance; an input end of the rectifier bridge is connected with the AC power supply, an output end of the rectifier bridge is connected with the LED light string and the master chip, the peripheral circuit of the master chip includes the voltage adjustment resistance, the regulated capacitor, the compensation capacitor and the current adjustment resistance that regulates the output average current of the system.

Abstract: A LED linear constant power driver circuit comprises an AC power supply, a rectifier bridge, a LED light string, a master chip, a voltage adjustment resistance, a regulated capacitor, a compensation capacitor and a current adjustment resistance; an input end of the rectifier bridge is connected with the AC power supply, an output end of the rectifier bridge is connected with the LED light string and the master chip, the peripheral circuit of the master chip includes the voltage adjustment resistance, the regulated capacitor, the compensation capacitor and the current adjustment resistance that regulates the output average current of the system.