Abstract: A light-emitting diode (LED) chip (2) comprises a substrate (20), an epitaxial structure (21), a transparent conductive layer (22), a passivation protective layer (23), and at least one electrode (25). The epitaxial structure (21) is disposed on the substrate (20). The transparent conductive layer (22) is disposed on the epitaxial structure (21). The transparent conductive layer (22) defines one or more first through holes (220) that extend through the transparent conductive layer (22). The passivation protective layer (23) is disposed on the transparent conductive layer (22). The passivation protective layer (23) defines one or more second through holes (230) that extend through the passivation protective layer (23). The electrode (25) is disposed on the passivation protective layer (23). The electrode (25) electrically connects the transparent conductive layer (11) through the one or more second through holes (230).

Abstract: A magnetic polymer adsorption material, preparation method and use thereof, which relate to the field of magnetic polymer materials. The preparation method comprises: (1) preparing magnetic nanoparticles; (2) dissolving the magnetic nanoparticles in a pore-forming agent, adding N-vinylpyrrolidone, divinylbenzene and an initiator respectively, and mixing uniformly; (3) adding an emulsifier and a dispersant into an aqueous solution; adding a part of the oil phase solution prepared in step (2) at the temperature below 60° C., and adding the rest of the oil phase solution when the temperature rises to 60° C. or above, reacting with stirring, precipitating and filtering the reacted solution, washing and drying the precipitate, and finally obtaining the magnetic polymer adsorption material. The material has the particle size of 2-100 ?m, the magnetization of 5-19.

Abstract: Various embodiments include methods for preloading data onto a wireless device based on predicted network status coverage and predicted user data access behaviors. In an aspect, a server may receive trip information a wireless device, receive network coverage map information representing a different network coverage areas, predict a travel time for the wireless device to reach the network coverage area with reduced signal quality, predict a travel duration of the wireless device within that network coverage area, and transmit a notification to the wireless device to enable preloading appropriate data before entering the network coverage area.

Abstract: An ESD protection circuit is provided, including a negative ESD protection module and a positive ESD protection module, where the negative ESD protection module includes a first resistor, a charging capacitor, a first field effect transistor, and a second field effect transistor, and the positive ESD protection module includes a fourth field effect transistor. When a negative ESD event occurs, there is a comparatively large transient voltage at a gate of a P-type enhanced GaN power device relative to a source of the P-type enhanced GaN power device. Therefore, a displacement current from the source to the gate of the P-type enhanced GaN power device is generated on the charging capacitor. A voltage drop generated by the displacement current on the first resistor may enable the first field effect transistor and the second field effect transistor to form a path when the first field effect transistor is turned on.

Abstract: This application discloses a chip and a signal level shifter circuit for use on a mobile terminal such as a charger or an adapter. The chip is co-packaged with a first silicon-based driver die and a second silicon-based driver die that are manufactured by using a BCD technology, and a first gallium nitride die and a second gallium nitride die that are manufactured by using a gallium nitride technology. A first silicon-based circuit is integrated on the first silicon-based driver die, a second silicon-based circuit is integrated on the second silicon-based driver die, and a high-voltage resistant gallium nitride circuit is integrated on the first gallium nitride die. In this way, it can be ensured that a second low-voltage silicon-based driver die manufactured by using a low-voltage BCD technology is not damaged by a high input voltage, thereby reducing costs of the chip.

Abstract: A pushing device and method of a media resource, an electronic device, and a storage device are described. The method for pushing the media resource includes determining an objective sliding path according to acquired path information; detecting a gesture operation on an interface for displaying a to-be-pushed media resource to determine a sliding path of the gesture operation; determining whether the sliding path of the gesture operation matches the objective sliding path when a sliding path similarity is greater than or equal to a first threshold, and that the sliding path of the gesture operation does not match the objective sliding path when the sliding path similarity is less than the first threshold; and generating a pushing instruction for pushing the to-be pushed media resource in response to the sliding path matching the objective sliding path.

Abstract: A gallium nitride (GaN) device, where a drain of the GaN device includes a p-type (P-GaN) layer and a drain metal. The drain metal includes a plurality of first structural intervals and a plurality of second structural intervals. The plurality of first structural intervals and the plurality of second structural intervals are alternately distributed in the gate width direction. In this way, the drain metal implements local injection of holes for the device in the first structural intervals, and forms ohmic contact in the second structural intervals, implementing current conduction from a drain to a source of the device.

Abstract: The invention discloses a method for screening a therapeutic target of acute radiation-induced gastrointestinal syndrome and use of TIGAR target in the preparation of a medicine for treating radiation-induced gastrointestinal syndrome. The CreERT-loxP transgenic mouse model is used, in which quiescent intestinal crypt stem cells are effectively promoted to proliferate after exposure to high-dose ionizing radiation, to screen a therapeutic target that still has a therapeutic effect for radiation-induced gastrointestinal syndrome 18-24 h after ionizing radiation. Gene splicing occurs in particular cells in the CreERT-loxP transgenic mice only after the injection of tamoxifen, thereby regulating gene expression. The actual situation of initial exposure and then treatment after a nuclear accident is well simulated, so the invention is of great practical significance.

Abstract: The present invention discloses a high-precision and miniaturized on-orbit calibration device for a six-dimensional force sensor of a space station manipulator and a calibration method thereof, which include an inverted ? shape fixing bracket, three force applying devices, and a cubic stress block. Each force applying device includes a force applying head, a single axis force sensor, a force source part and a fastening part. The force source part includes an upper support plate, a second electrode plate, piezoelectric ceramic plates, a first electrode plate and a lower support plate, which are coaxially arranged sequentially from top to bottom. The single axis force sensor is mounted on the top of the upper support plate, and the hemispherical force applying head is mounted on the top of the single axis force sensor. The cubic stress block is mounted on the top of the six-dimensional force sensor.

Abstract: A transaction indicator monitoring computer-implemented method, medium, and system are disclosed. One computer-implemented method includes obtaining sampling sequences of a transaction indicator of transaction data under multiple sets of transaction dimension values, each set of transaction dimension values corresponding to one sampling sequence, a first sampling sequence including values of the transaction indicator at a predetermined quantity of sampling points under a first set of transaction dimension values, and a value of the transaction indicator at a target sampling point is a first actual value. An estimated value of the transaction indicator at the target sampling point in the first sampling sequence is calculated based on the first sampling sequence and compared with the first actual value, to determine whether the transaction indicator at the target sampling point under the first set of transaction dimension values corresponding to the first sampling sequence is abnormal.

Abstract: The present disclosure relates to a method and an apparatus for controlling a screen display content of a display terminal, an electronic device, and a computer-readable storage medium, which belongs to the field of image display technology. The method includes: acquiring angular acceleration data collected by a motion sensor in a terminal device, and determining a movement trajectory of the terminal device according to the angular acceleration data; determining an operation instruction corresponding to the movement trajectory of the terminal device according to a preset mapping relationship between the movement trajectory and the operation instruction; and sending the operation instruction to control a screen of the display terminal to switch the display content.

Abstract: An ESD protection circuit is provided, including a negative ESD protection module and a positive ESD protection module, where the negative ESD protection module includes a first resistor, a charging capacitor, a first field effect transistor, and a second field effect transistor, and the positive ESD protection module includes a fourth field effect transistor. When a negative ESD event occurs, there is a comparatively large transient voltage at a gate of a P-type enhanced GaN power device relative to a source of the P-type enhanced GaN power device. Therefore, a displacement current from the source to the gate of the P-type enhanced GaN power device is generated on the charging capacitor. A voltage drop generated by the displacement current on the first resistor may enable the first field effect transistor and the second field effect transistor to form a path when the first field effect transistor is turned on.

Abstract: This application provides a gallium nitride component and a drive circuit thereof. The gallium nitride component includes: a substrate; a gallium nitride GaN buffer layer formed on the substrate; an aluminum gallium nitride AlGaN barrier layer formed on the GaN buffer layer; and a source, a drain, and a gate formed on the AlGaN barrier layer. The gate includes a P-doped gallium nitride P-GaN cap layer formed on the AlGaN barrier layer, and a first gate metal and a second gate metal formed on the P-GaN cap layer. A Schottky contact is formed between the first gate metal and the P-GaN cap layer, and an ohmic contact is formed between the second gate metal and the P-GaN cap layer. In the technical solution provided in this application, the gallium nitride component is a normally-off component, and is conducive to design of a drive circuit.

Abstract: The present disclosure relates to an image display device, method based on a mobile terminal, medium, and electronic device. The device includes: a rotation angle acquisition processor configured to acquire a rotation angle value of the mobile terminal rotated around an axis in a second direction; a movement speed processor configured to determine a movement speed of an image displayed on a display screen of the mobile terminal in a display interface of the display screen according to the rotation angle value, and/or determine the movement speed of the image in the display interface of the display screen according to a relationship between a size of the image displayed on the display screen in a first direction and a size of the display interface of the display screen in the first direction; and an image movement controller configured to control the image to move in the first direction in the display interface of the display screen according to the movement speed.

Abstract: This application discloses a chip and a signal level shifter circuit for use on a mobile terminal such as a charger or an adapter. The chip is co-packaged with a first silicon-based driver die and a second silicon-based driver die that are manufactured by using a BCD technology, and a first gallium nitride die and a second gallium nitride die that are manufactured by using a gallium nitride technology. A first silicon-based circuit is integrated on the first silicon-based driver die, a second silicon-based circuit is integrated on the second silicon-based driver die, and a high-voltage resistant gallium nitride circuit is integrated on the first gallium nitride die. In this way, it can be ensured that a second low-voltage silicon-based driver die manufactured by using a low-voltage BCD technology is not damaged by a high input voltage, thereby reducing costs of the chip.

Abstract: An intracranial thrombus removal apparatus includes a fretwork-type tube-shaped structure, and having a radially compressed loading state and a radially expanded released state. One end of the tube-shaped structure in an axial direction configured for connecting to a delivery is defined as a proximal end, and the other end in the axial direction closed by a mesh cover structure is defined as a distal end a mesh cover structure. The tube-shaped structure comprises a plurality of capturing claws, one end of each capturing claw is defined as a root part connected to a side wall of the tube-shaped structure, and the other end of each of the plurality of capturing claws is defined as a tip extending to an axis position of the tube-shaped structure, and each of the plurality of capturing claws inclines from the proximal end to the distal end while extending.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for broadcasting audio. In one aspect, the method includes receiving, from a server by a smart broadcasting device associated with a service client, an audio broadcast instruction; in response to receiving the audio broadcast instruction, downloading an audio file corresponding to the audio broadcast instruction, wherein the audio file comprises a marketing content related to services provided by the server to the service client associated with the smart broadcasting device; and broadcasting, by the smart broadcasting device, the audio file by using a speaker of the smart broadcasting device.

Abstract: The embodiments of the present disclosure provide a method, system and server for utilizing barcode. The method includes: a server receiving a decoding request sent by a user terminal, the decoding request comprising a barcode image associated with a smart device, or a code value of a barcode presented in the barcode image associated with the smart device; the barcode server acquiring state information associated with the code value of the barcode; returning operation information associated with the user if the state information is a second state information; or sending configuration address information to the user terminal for configuring the smart device, and changing the state information associated with the code value, if the state information is a first state information.

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media are provided. One of the methods include: obtaining a request for collecting information associated with an Internet address; obtaining, in response to the request, the information from the Internet address; encrypting the information to obtain a digest; storing the digest in a block on a blockchain and the information in a cloud storage space associated with an access address; and sending, to a sender of the request, the digest and the access address associated with the cloud storage space.

Abstract: The present disclosure provides an experiment platform for simulating fire in an underground traffic conversion channel, including: a model body configured to simulate fire in the an underground traffic conversion channel; a burner connected to the model body and configured to generate smoke; and a smoke imaging system including laser sheet light sources and image recording devices configured to record smoke distribution images. The laser sheet light sources are in the model body, and plane laser light emitted by the laser sheet light sources is parallel to a flow direction of the smoke. The image recording devices are in one-to-one correspondence to the laser sheet light sources and are arranged outside an observation window of the model body. One laser sheet light source and one image recording device corresponding thereto each have a filter configured to filter out laser light of a same wavelength.