Abstract: A hydrogel for cell-laden bioprinting, bioink, and a preparation method and an application thereof, relates to the technical field of biomedical polymer hydrogels. The hydrogel for cell-laden bioprinting is polymer gel formed by adding a cell-specific material into a matrix of alginate and gelatin and crosslinking and curing, wherein the cell-specific material is polypeptide selected according to different laden cells. The structures printed using the hydrogel may have the advantages such as adjustable mechanical properties, adjustable porosity, high biocompatibility, high printing accuracy, and high customizability, which may widely support the printing of human tissues and organs such as spinal cord, cartilage, and heart, and has good prospects for applications in tissue repair, organ transplantation and so on.

Abstract: Provided are a display module, a method for manufacturing the same, and a display device. The display module includes a display panel, an optical film disposed on a backlight side of the display panel, a support assembly configured to support the display panel and the optical film, and a light shielding structure disposed on a side surface of the optical film.

Abstract: A jack bracket is provided. The jack bracket comprises a bracket base including a first side and a second side opposite the first side, a flexible strap having a first end portion coupled to the first side and a second end portion opposite the first end portion, and a lock assembly configured to couple the second end portion of the flexible strap to the second side of the bracket base. The flexible strap further includes a connection member disposed between the first end portion and the second end portion. The connection member is selectively attached to a vehicle part and selectively released from the vehicle part. The jack bracket of the present disclosure allows for removal and installation of a jack in a simple and fast manner in a limited space.

Abstract: A hydrogen filling station control system and method of use, and a hydrogen filling station comprising the system. The system includes: a first compressor, a second compressor, a first storage tank, a detector and a controller, wherein discharge pressure of the first compressor is smaller than a gas storage pressure of the first storage tank, discharge pressure of the second compressor is larger than or equals the gas storage pressure of the first storage tank, the first compressor and the second compressor are connected to the first storage tank, and the detector is configured to detect pressure of the first storage tank. The controller is configured to control the first compressor to inflate and pressurize the first storage tank and control, when the first storage tank equals a first preset pressure, the second compressor to inflate and pressurize the first storage tank. Reduced costs and power consumption can be realized.

Abstract: A hydrogen fueling control device and method comprising step S100, obtaining initial parameters of a vehicle-mounted hydrogen reservoir, wherein the initial parameters comprise volume, initial hydrogen pressure, and initial ambient temperature of the vehicle-mounted hydrogen reservoir; step S200, computing a fueling rate and a target pressure for hydrogen fueling according to the initial parameters, wherein the computed fueling rate and target pressure cause the temperature of hydrogen during a hydrogen fueling process to be within a preset safe range; and step S300, controlling a hydrogen fueling station to fuel hydrogen to the vehicle-mounted hydrogen reservoir at the computed fueling rate to the computed target pressure.

Abstract: A scissor jack comprises a bracket coupled to a first upper arm and a second upper arm; a load rest positioned above the bracket and pivotally connected to the bracket; an elastic element disposed between the load rest and the bracket; a base coupled to a first lower arm and a second lower arm; a first connector pivotally connected to the first upper arm and the first lower arm; a second connector pivotally connected to the second upper arm and the second lower arm; and a driving rod drivably connected to the first and second connectors.

Abstract: A jack bracket is provided. The jack bracket comprises a bracket base including a first side and a second side opposite the first side, a flexible strap having a first end portion coupled to the first side and a second end portion opposite the first end portion, and a lock assembly configured to couple the second end portion of the flexible strap to the second side of the bracket base. The flexible strap further includes a connection member disposed between the first end portion and the second end portion. The connection member is selectively attached to a vehicle part and selectively released from the vehicle part. The jack bracket of the present disclosure allows for removal and installation of a jack in a simple and fast manner in a limited space.

Abstract: A bracket assembly four securing a hydraulic jack in a vehicle. The bracket assembly including a base and two support walls opposite each other and extending outwardly from the base to support the hydraulic jack. The assembly includes a base band having a first end and a second end. The base band is disposed between the two support walls and is connected to the base. A first strap partially made from sheet metal has a fixed end and a free end with the fixed end of the first strap pivotably connected to a first end of the base band. The free end thereof detachably coupled to the second end of the base band via a locking device. The first strap and the base band secures the hydraulic jack on the two support walls.

Abstract: A scissor jack comprises a bracket coupled to a first upper arm and a second upper arm; a load rest positioned above the bracket and pivotally connected to the bracket; an elastic element disposed between the load rest and the bracket; a base coupled to a first lower arm and a second lower arm; a first connector pivotally connected to the first upper arm and the first lower arm; a second connector pivotally connected to the second upper arm and the second lower arm; and a driving rod drivably connected to the first and second connectors.

Abstract: A scissor jack comprises a support member coupled to a first upper arm and a second upper arm; a base coupled to a first lower arm and a second lower arm; a first connector pivotally connected to the first upper arm and the first lower arm; a second connector pivotally connected to the second upper arm and the second lower arm; a lead screw fixed to the first connector; and a driving member having a first through-hole. The driving member is rotatable connected in the second connector and the lead screw is connected with the first through-hole via thread connection.

Abstract: A bracket assembly four securing a hydraulic jack in a vehicle. The bracket assembly including a base and two support walls opposite each other and extending outwardly from the base to support the hydraulic jack. The assembly includes a base band having a first end and a second end. The base band is disposed between the two support walls and is connected to the base. A first strap partially made from sheet metal has a fixed end and a free end with the fixed end of the first strap pivotably connected to a first end of the base band. The free end thereof detachably coupled to the second end of the base band via a locking device. The first strap and the base band secures the hydraulic jack on the two support walls.

Abstract: A screw locking device includes a feeding mechanism, a conveying mechanism, and a pneumatic screw driver. The conveying mechanism includes a base, a pneumatic driver slidably mounted on the base, a pair of blocking members slidably mounted on the base, a conveying bridge, a flexible tube, and a controller. Each blocking member includes a blocking end positioned below the pneumatic driver. The conveying bridge communicates with the feeding mechanism, and extends to the blocking ends. The flexible tube aligned with a gap between the blocking ends, and communicates with the pneumatic screw driver.

Abstract: A screw locking device includes a feeding mechanism, a conveying mechanism, and a pneumatic screw driver. The conveying mechanism includes a base, a pneumatic driver slidably mounted on the base, a pair of blocking members slidably mounted on the base, a conveying bridge, a flexible tube, and a controller. Each blocking member includes a blocking end positioned below the pneumatic driver. The conveying bridge communicates with the feeding mechanism, and extends to the blocking ends. The flexible tube aligned with a gap between the blocking ends, and communicates with the pneumatic screw driver.

Abstract: A fetching mechanism includes a support base, a fetching member positioned on the support base and an adsorbing assembly. The adsorbing assembly is positioned on the support base and is spaced from the fetching member. The adsorbing assembly includes a driving member positioned on the support base and an adsorbing member driven by the driving member. The fetching member fetches one welding member, the adsorbing member is driven by the driving member to extend out and adsorbs the workpiece, and the adsorbing member is driven to drawback until each welding member attaches the workpiece. The application also supplies an automatic welding system using the fetching mechanism.