Abstract: A pixel drive circuit, a display panel and a display device. In the pixel drive circuit, a voltage-stabilization transistor is arranged, and the voltage-stabilization transistor is provided with two control ends, each of the two control ends forms a voltage-stabilization capacitor with the active layer, thereby a new capacitor is added on the basis of the original parasitic capacitor. The new capacitor has a relatively large capacitance value. The potential variation at the control end of the drive transistor depends on the parasitic capacitor of the drive transistor, the storage capacitor at the control end of the drive transistor, and the capacitance value of the new capacitor, when the capacitive coupling effect occurs, the voltage at the control end of the drive transistor can be jointly maintained by the above three capacitors, thereby improving the effect of voltage stabilization.

Abstract: A method includes extracting, using a backbone of a machine learning model, a plurality of features from an image of a foot and predicting, using a first portion of the machine learning model and based on one or more features of the plurality of features, a first aspect of the foot. The method also includes predicting, using a second portion of the machine learning model and based on one or more features of the plurality of features, a second aspect of the foot different from the first aspect, generating, using at least the first aspect and the second aspect, a two-dimensional model of a shoe, and superimposing the two-dimensional model of the shoe onto the image of the foot.

Abstract: Aspects of the disclosure provide methods, apparatuses, and non-transitory computer-readable storage mediums for video encoding/decoding. In a method, prediction information for a current block is decoded. The prediction information indicates a first intra prediction mode and a secondary transform index, based on which a secondary transform core is determined. A first transform coefficient block is de-quantized from the prediction information. A size of the first transform coefficient block is less than a size of the secondary transform core. A part of a second transform coefficient block is generated based on the first transform coefficient block and the secondary transform core. A size of the second transform coefficient block equals the size of the secondary transform core. A size of the part of the second transform coefficient equals the size of the first transform coefficient block. The current block is reconstructed based on the part of the second transform coefficient block.

Abstract: An earphone, including a sound production component; an ear-hook configured to place the sound production component near an ear canal without blocking an opening of the ear canal, at least a portion of the sound production component extends into a concha cavity; and a microphone assembly including a first microphone and a second microphone disposed in the sound production component or the ear hook, the sound production component or the ear hook includes a first sound hole and a second sound hole corresponding to the first microphone and the second microphone, respectively; wherein a projection of the first sound hole on a sagittal plane and a projection of the second sound hole on the sagittal plane have a first distance, a ratio of the first distance to a size of a projection of the sound production component on the sagittal plane along a major axis direction is 0.7-1.2.

Abstract: An aeronautical aluminum alloy minimum-quantity-lubrication milling machining device includes a machine tool worktable and spindle connected with a machine tool power system. The spindle is connected with a tool holder that is fixed with a cutting tool. The machine tool worktable is provided with a machine tool fixture, the tool holder is connected with a minimum-quantity-lubrication mechanism, the machine tool fixture includes a fixture body that is fixedly provided with a limit block for contact with two adjacent side surfaces of a workpiece, the fixture body is provided with a plurality of clamping elements capable of pressing the workpiece against an upper surface of the fixture body, and a top of the clamping element is provided with a detection member for detecting a relative position between the clamping element and the spindle. The device can avoid interference and contact between a nozzle and the clamping element.

Abstract: Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user and the head of the user, the second portion may extend toward a front outer side of the auricle and connect the sound production component, and the sound production component may be located close to the ear canal but not block the opening of the ear canal; wherein the sound production component and the auricle may have a first projection and a second projection on a sagittal plane, respectively, a centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction, a ratio of the first distance to a height of the second projection in the vertical axis direction may be within a range of 0.25-0.

Abstract: This application provides a camera module and an electronic device, to reduce manufacturing costs of the camera module and improve reliability of the camera module on the premise of ensuring optical image stabilization and auto-focus functions. The camera module includes a housing, and a light transfer part, a lens group, an image sensor, and a motor disposed in the housing. The image sensor is located on the side of the light output side. The motor includes a bracket, a carrier, and eight wires. Two ends of the wires are respectively connected to the carrier and the bracket, and the wires are retractable in length. The carrier is suspended from the bracket using the eight wires and is configured to carry the lens group, and, when the wires extend or retracts in length, drive the lens group to translate or rotate.

Abstract: Disclosed herein are high Tm RNA nanostructures that can be composed of one or more modules or motifs to build RNA nanostructures with or without layers. The RNA nanostructures can have a core domain and three or more double-stranded arms and formulations thereof to conjugate high copy numbers of therapeutics, pH responsive or enzyme cleavable drug cargo. Also described herein is a design strategy for generation of synthetic RNA oligonucleotides that can self assemble into highly thermostable RNA structures. Also described herein are uses of the RNA nanostructures described herein.

Abstract: The present application relates to the field of mechanical engineering technologies, and particularly to an unloading device. The unloading device includes a power mechanism, a transmission mechanism, and an execution mechanism that are connected in sequence from top to bottom; wherein the execution mechanism includes a shafting assembly and a turntable assembly that are connected in sequence from top to bottom; wherein the turntable assembly includes an upper auxiliary fence, a middle main disturbance disk, and a lower reclaiming portion that are arranged in sequence from top to bottom. The unloading device provided by the present application is easy to control, and ensures the reclaiming reliability of the spherical materials and the stability of the sphere flow unloading, which can meet the requirements of long life and reliable operation of the unloading device under light load and low speed working conditions and achieve the convenient maintenance.

Abstract: The present application relates to the field of communications and provides a method and apparatus for determining channel state information (CSI). The method includes a network side device determines a measurement mode for CSI, the measurement mode being that the network side device performs transmission using M code words by means of transmit points corresponding to M demodulation reference signal (DMRS) port groups, and M is greater than or equal to 1, and each of the code words corresponds to one DMRS port group, the network side device determines N CSI-RS resources according to the measurement mode, the N CSI-RS resources being used for a terminal to determine CSI of transmit channels corresponding to the M code words, the transmit channels corresponding to the code words being transmit channels from the transmit points of the code words to the terminal, M being less than or equal to N.

Abstract: A compound composition for improving bone health and preparation and application thereof are provided. The compound composition is prepared by combining a traditional Chinese medicine extract with chicken cartilage collagen, magnesium, vitamin K2 and vitamin D3. The compound composition overcomes the food safety risk of the existing osteoporosis preventive drugs by adding the traditional Chinese medicine extract for improving osteoporosis and promoting bone health. And the compound composition disclosed can be used as a dietary supplement or health food raw material for preventing or treating osteoporosis. Therefore, the compound composition disclosed is suitable for promotion and application.

Abstract: A display device is provided, including: a back plate; a plastic frame connected to the back plate; a backlight module; a privacy film on a light emitting side of the backlight module; and a dimming sheet on a side of privacy film away from the back plate, wherein the dimming sheet is configured to be capable of adjusting a viewing angle of the display device. The plastic frame includes a first surface and a side end face, the first surface is a surface of the plastic frame close to the dimming sheet, the side end face is a side face of the plastic frame close to the dimming sheet, the plastic frame further includes a chamfered portion at a transition position between the side end face and the first surface, and the chamfered portion has a rough surface that is configured for diffracting the light incident on the chamfered portion.

Abstract: The present invention relates to a carbide tool cleaning and coating production line and a method, including a cleaning device including a support frame, a cleaning mechanism and a drying mechanism are sequentially disposed under the support frame connected to a moving mechanism, the moving mechanism is connected to a lifting mechanism being capable of being connected to a tool fixture bracket being configured to accommodate the tool fixture; a coating device including a coating chamber which a plane target mechanism and a turntable assembly disposed in, the turntable assembly is capable of being connected to a plurality of tool fixtures being capable of rotating around an axial line of the coating chamber under the driving of the turntable assembly and rotating around an axial line thereof at the same time; and, a manipulator being disposed between the cleaning device and the coating device.

Abstract: The present invention provides a combined chimeric antigen receptor targeting CD19 and CD20 and application thereof. Specifically, the present invention provides a combined chimeric antigen receptor targeting CD19 and CD20, which comprises a scFv targeting CD19 and CD20, a hinge region, a transmembrane region, and an intracellular signaling domain. The present invention provides a nucleic acid molecule encoding the chimeric antigen receptor and a corresponding expression vector, a CAR-T cell, and applications thereof. The experimental results show that the chimeric antigen receptor provided by the present invention shows extremely high killing ability against tumor cells. The chimeric antigen receptor of the present invention targets CD19 and/or CD20 positive cells and can be used to treat CD19 and/or CD20 positive B-cell lymphoma, leukemia and other diseases.

Abstract: An earphone comprises a sound production component and an ear hook including a first portion and a second portion connected in sequence. The first portion is hung between an auricle of a user and a head of the user, and the second portion extends toward a front outer side of the auricle and connects to the sound production component, so that the sound production component is worn at a position near an ear canal but does not block an opening of the ear canal. The sound production component and the auricle have a first projection and a second projection on a sagittal plane, respectively. A first distance between a centroid of the first projection and a highest point of the second projection in a vertical axis direction is within a range of 17 mm-43 mm, and an area of the first projection is within a range of 202 mm2-560 mm2.

Abstract: A negative electrode composite current collector including a copper plating solution is described. The copper plating solution includes a leveling agent represented by a general formula (1) where an anion X is F?, Cl?, or Br?; R1, R2, and R3 are each independently selected from O or S; and R4, R5, and R6 are each independently selected from hydrogen, a substituted or unsubstituted alkyl, a substituted or unsubstituted vinyl, a substituted or unsubstituted aryl, and a substituted or unsubstituted heteroaryl.

Abstract: A speaker includes a diaphragm, a magnetic circuit component, a coil, and a bracket arranged around the magnetic circuit component. At least part of the coil is arranged in a magnetic gap formed by the magnetic circuit component. The coil drives the diaphragm to vibrate to generate sound after the coil is energized. The diaphragm includes a main-body region and a folded-ring region surround the main-body region. A first part of the bracket is connected to the folded ring region. A thickness of the first part of the bracket is within a range of 0.3 mm-3 mm. The thickness of the first part is a minimum distance between a connection region and an attaching region. The connection region is a region where the bracket and the folded-ring region connect. The attaching region is a region where the bracket directly attaches to the magnetic circuit component in a vibration direction of the diaphragm.

Abstract: The present disclosure relates to the technical field of lamp bulb, and discloses a shadowless waterproof light-emitting diode (LED) lamp bulb, including a lamp holder and a lampshade connected to the lamp holder, and further including a lampwick component and a sealing plug; the lampwick component includes a base plate, a first metal support line, and a second metal support line; and the other end of the first metal support line and the other end of the second metal support line are both electrically connected to the lamp holder. The present disclosure has the following advantages: 1. The structure of a luminous element is improved, which effectively solves the technical problem of light shadow generated by the lamp bulb during use; 2. The lamp bulb has a novel structure and higher decorability; and 3. The overall lamp bulb is convenient to assemble and higher in production and assembling efficiency.

Abstract: Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user and the head of the user, the second portion may extend toward a front outer side of the auricle and connect the sound production component, and the sound production component may be located close to the ear canal but not block the opening of the ear canal; wherein the sound production component and the auricle may have a first projection and a second projection on a sagittal plane, respectively, a centroid of the first projection may have a first distance from a highest point of the second projection in a vertical axis direction, a ratio of the first distance to a height of the second projection in the vertical axis direction may be within a range of 0.25-0.

Abstract: One or more embodiments of the present disclosure provide a speaker. The speaker may include a diaphragm, a magnetic circuit component, a coil connected to the diaphragm, a bracket arranged around the magnetic circuit component, and a housing. At least part of the coil may be arranged in a magnetic gap formed by the magnetic circuit component, and the coil may drive the diaphragm to vibrate to generate sound after the coil is energized. The diaphragm may include a main-body region and a folded-ring region surround the main-body region. The bracket may be connected to a portion of the folded ring region away from the main-body region, and a plurality of air holes may be provided on the bracket. A pressure relief hole may be provided on the housing. Sound from a back surface of the diaphragm may be transmitted to the pressure relief hole through the plurality of air holes, and the plurality of air holes may at least include a first air hole and a second air hole.