Abstract: A calculation system for predicting a proppant embedding depth based on a shale softening effect is provided, including a sampling test terminal, a scheduling module, a monitoring module, and a calculation module, wherein the scheduling module, the monitoring module, and the calculation module are connected in communication, and the monitoring module is connected to an external operating system through a wireless network, wherein the external operating system is configured to perform a hydraulic fracturing operation and receive a first control signal and/or a second control signal from the monitoring module. The sampling test terminal is configured to test the samples and obtain test data. The scheduling module is configured to determine a target construction parameter.

Abstract: The present disclosure relates to a gripper, a clamping device having the same and a mobile robot. The gripper includes a gripper arm which is configured to be connected with a driving mechanism of the clamping device, and a gripper finger which is floatably connected to the gripper arm. The gripper finger has a clamping surface. The gripper arm is driven by the driving mechanism to move so as to drive the gripper finger to clamp or release an object to be clamped. Some solutions provided in the present disclosure can solve the problem that the tray cannot be clamped up or is easy to slip off.

Abstract: A transmitting apparatus includes a signal generation circuit and an adjustment circuit. The signal generation circuit is configured to send, to a receiving apparatus, a serial data signal that carries a training sequence and valid data, where the training sequence is used to train a skew or an equalization of the serial data signal, and the valid data is used to detect an amplitude of the serial data signal. The adjustment circuit is configured to receive indication information from the receiving apparatus, and adjust a transmission parameter of the serial data signal based on the indication information, where the transmission parameter includes at least one of the skew, the equalization, or the amplitude.

Abstract: An innovative equipment system comprises a tap water reservoir system, a disinfectant reactor system, a pump system, a disinfection and safety door spraying system, a sewage recycling system and a sewage treatment system, wherein the tap water reservoir system is mainly configured to store tap water in advance according to actual cargo volumes and disinfection requirements, and generally in tons; and the disinfectant reactor system comprises boron-doped diamond electrode modules, a reactor indicating lamp module, a visible reactor, a smart control screen, at least one water tank and a structure protection module. The Innovative disinfection and sterilization equipment system can easily kill bacteria and viruses such as Escherichia coli, Staphylococcus aureus, Salmonella typhimurium, and new coronavirus in a short time and enhance disinfection efficiency.

Abstract: The present disclosure relates to a calculation method for predicting a proppant embedding depth based on a shale softening effect, including determining a spontaneous imbibition depth-soaking time curve; determining a Young’s modulus-soaking time curve of core surfaces; establishing a proppant embedding model containing a softened layer by a finite element method; conducting a numerical simulation to obtain an embedding volume-soaking time curve; and obtaining a calculation formula for a proppant embedding volume considering a softening effect.

Abstract: A drip irrigation apparatus and system. The drip irrigation apparatus includes a flow channel body and an elastic body. The elastic body is mounted on the outer circumference of the flow channel body and fitted in a spontaneous state to the outer circumference of the flow channel body. The flow channel body includes an energy dissipation body. The first drainage channel is formed in the energy dissipation body, the first drainage channel is connected to both ends of the energy dissipation body. The first drainage channel is connected at both ends of the first drainage channel to the inner wall of the elastic body forming a radial drainage channel.

Abstract: Provided are a low reflection structure, a display panel, a display device, and a manufacturing method of a display panel. Related is the field of display technologies. The low reflection structure includes a first lens array, a second lens array, and a light blocking layer located between the first lens array and the second lens array. The first lens array includes multiple first convex lenses. The second lens array includes multiple second convex lenses. The light blocking layer includes a light blocking part and multiple light transmitting parts. The light blocking part at least partially surrounds the multiple light transmitting parts. An image focal plane of the first convex lens and an object focal plane of the second convex lens are within a same plane. A focus of each first convex lens of the multiple first convex lenses is located within a light transmitting part of the multiple light transmitting parts.

Abstract: A test platform for an automatic flushing valve is described. It includes a fluid source, weighing parts, a bracket, a diverter and several driplines. The driplines are parallel to each other and are evenly arranged in an array in a circumferential direction of the diverter. Emitters are installed on each of the driplines; one end of each driplines is fixed to the diverter, which is connected to the fluid source to feed fluid into the driplines. The diverter is pivotally connected to the bracket, so that the diverter and the driplines can pivot relative to the bracket; the other end of each driplines is used to install automatic flushing valves. Weighing parts are installed below the automatic flushing valves to measure the solution flowing out of the automatic flushing valves, and other weighing parts are installed below the driplines to measure solution flowing out of the emitters.

Abstract: A test platform for an automatic flushing valve is described. It includes a fluid source, weighing parts, a bracket, a diverter and several driplines. The driplines are parallel to each other and are evenly arranged in an array in a circumferential direction of the diverter. Emitters are installed on each of the driplines; one end of each driplines is fixed to the diverter, which is connected to the fluid source to feed fluid into the driplines. The diverter is pivotally connected to the bracket, so that the diverter and the driplines can pivot relative to the bracket; the other end of each driplines is used to install automatic flushing valves. Weighing parts are installed below the automatic flushing valves to measure the solution flowing out of the automatic flushing valves, and other weighing parts are installed below the driplines to measure solution flowing out of the emitters.

Abstract: A display panel, a method for manufacturing the display panel, and a display apparatus are described. In an embodiment, the display panel includes a display area and a non-display area; a substrate; an organic layer located at a side of the substrate and located in the display area and the non-display area, in which the organic layer includes a first portion located in the non-display area; and an organic layer protection structure located on a surface of the organic layer facing away from the substrate. In an embodiment, the organic layer protection structure includes a first structure in the display area and a second structure in the non-display area. In an embodiment, the second structure overlaps the first portion in a direction perpendicular to a plane of the substrate. In an embodiment, the first structure and the second structure are in direct contact with the organic layer.

Abstract: An automatic flushing device for a screen filter of a biogas slurry drip irrigation system and a use thereof are provided. The automatic flushing device includes a feeding mechanism, a filter unit, a discharging mechanism and a control mechanism, where the filter unit is provided with a feeding end fixedly threaded to a discharging end of the feeding mechanism and a discharging end fixedly threaded to a feeding end of the discharging mechanism; and the control mechanism is clamped on a pipe of the feeding mechanism. The automatic flushing device enhances the cleaning strength and uniformity of ultrasonic waves to the filter screen. The ultrasonic vibration rod is nested inside the upper filter casing through the externally-threaded hollow cap and a threaded top portion of the upper filter casing, which greatly facilitates the cleaning, replacement and maintenance of the ultrasonic vibration rod.

Abstract: Provided are a composite membrane, a touchpad and a display device. The composite membrane includes a first graded-refractive-index layer, a first dielectric layer and a second graded-refractive-index layer which are stacked in sequence; where the first graded-refractive-index layer includes at least two first sub-layers, and the second graded-refractive-index layer includes at least two second sub-layers; in a direction from the first graded-refractive-index layer to the first dielectric layer, refractive indexes of first sub-layers sequentially increase, and refractive indexes of second sub-layers sequentially decrease; a refractive index of a first sub-layer adjacent to the first dielectric layer is less than or equal to a refractive index of the first dielectric layer; and a refractive index of a second sub-layer adjacent to the first dielectric layer is less than or equal to the refractive index of the first dielectric layer.

Abstract: A variable-flow-rate anti-clogging emitter includes an upper casing and a lower casing, where the upper casing and the lower casing are fixedly connected with each other; the upper casing has a flat top surface provided with a water outlet and a bottom surface provided with a truncated conical slot in communication with the water outlet; the lower casing includes a flow channel portion and a discharging portion, which are recessed in an upper surface of the lower casing; the flow channel portion has one end provided with multiple parallel feeding channels and an other end communicated with the discharging portion; one end of a lower surface of the lower casing is provided with an L-shaped platform; water inlets of the multiple feeding channels are arranged on a side wall of the L-shaped platform; and an elastomer flow channel is fixedly provided between the upper casing and the lower casing.

Abstract: Provided are a display device and a preparation method thereof. The display device includes a display panel and a first antireflection structure and a second antireflection structure successively stacked on a side of a display functional layer facing away from a driving substrate, where the display panel includes the driving substrate and the display functional layer. The first antireflection structure includes a first graded-index layer, a conductive layer and a second graded-index layer which are successively stacked; the first graded-index layer includes at least two first sublayers, and the second graded-index layer includes at least two second sublayers. The second antireflection structure includes a third graded-index layer, a first dielectric layer and a fourth graded-index graded layer which are successively stacked; the third graded-index layer includes at least one third sublayer, and the fourth graded-index layer includes at least two fourth sublayers.

Abstract: A display device and an imaging system are provided. The display device includes a double-sided display module, a reflective component, and a curved mirror. The double-sided display module includes first and second light-exiting surfaces. In a first direction, light emitted from the first light-exiting surface is projected to a first position on the curved mirror. The reflective component at least reflects light emitted from the second light-exiting surface to a second position on the curved mirror. In a second direction, the curved mirror reflects the light emitted from the first light-exiting surface and the light emitted from the second light-exiting surface and reflected by the reflective component, to form a first virtual image and a second virtual image. Along the first direction, the first virtual image is spaced apart from the second virtual image, and the first direction intersects the second direction.

Abstract: A drip irrigation apparatus and system. The drip irrigation apparatus includes a flow channel body and an elastic body. The elastic body is mounted on the outer circumference of the flow channel body and fitted in a spontaneous state to the outer circumference of the flow channel body. The flow channel body includes an energy dissipation body. The first drainage channel is formed in the energy dissipation body, the first drainage channel is connected to both ends of the energy dissipation body. The first drainage channel is connected at both ends of the first drainage channel to the inner wall of the elastic body forming a radial drainage channel.

Abstract: Provided are a low reflection structure, a display panel, a display device, and a manufacturing method of a display panel. Related is the field of display technologies. The low reflection structure includes a first lens array, a second lens array, and a light blocking layer located between the first lens array and the second lens array. The first lens array includes multiple first convex lenses. The second lens array includes multiple second convex lenses. The light blocking layer includes a light blocking part and multiple light transmitting parts. The light blocking part at least partially surrounds the multiple light transmitting parts. An image focal plane of the first convex lens and an object focal plane of the second convex lens are within a same plane. A focus of each first convex lens of the multiple first convex lenses is located within a light transmitting part of the multiple light transmitting parts.

Abstract: Provided are a display device and a preparation method thereof. The display device includes a display panel and a first antireflection structure and a second antireflection structure successively stacked on a side of a display functional layer facing away from a driving substrate, where the display panel includes the driving substrate and the display functional layer. The first antireflection structure includes a first graded-index layer, a conductive layer and a second graded-index layer which are successively stacked; the first graded-index layer includes at least two first sublayers, and the second graded-index layer includes at least two second sublayers. The second antireflection structure includes a third graded-index layer, a first dielectric layer and a fourth graded-index graded layer which are successively stacked; the third graded-index layer includes at least one third sublayer, and the fourth graded-index layer includes at least two fourth sublayers.

Abstract: Provided are a head up display system and a vehicle. The head up display system includes a control module, an image source module and an imaging module. The image source module includes a display component and a dimming component, and the dimming component includes a polarization state adjusting unit, a metal wire grid and a reflector. The display component is electrically connected to the control module. The polarization state adjusting unit is configured to modulate the imaging light into polarized light in a first polarization direction and polarized light in a second polarization direction. The imaging module is configured to transmit the polarized light in the first polarization direction or the polarized light in the second polarization direction to a windshield, and the windshield reflects the first polarization direction or the polarized light in the second polarization direction into a human eye for imaging.

Abstract: Provided are a composite membrane, a touchpad and a display device. The composite membrane includes a first graded-refractive-index layer, a first dielectric layer and a second graded-refractive-index layer which are stacked in sequence; where the first graded-refractive-index layer includes at least two first sub-layers, and the second graded-refractive-index layer includes at least two second sub-layers; in a direction from the first graded-refractive-index layer to the first dielectric layer, refractive indexes of first sub-layers sequentially increase, and refractive indexes of second sub-layers sequentially decrease; a refractive index of a first sub-layer adjacent to the first dielectric layer is less than or equal to a refractive index of the first dielectric layer; and a refractive index of a second sub-layer adjacent to the first dielectric layer is less than or equal to the refractive index of the first dielectric layer.