Abstract: The invention provides a hyperbranched polybenzene, preparation method and use thereof. The method includes: under an inert gas atmosphere, a monomer with two internal acetylenyl groups undergoes polymerization reaction in a solvent in the presence of a catalyst to obtain the hyperbranched polybenzene. The monomer in the polymerization reaction is a monomer with internal acetylenyl groups, and the catalyst is a nonmetallic catalyst p-toluenesulfonic acid. The polymerization reaction has simple conditions, is convenient and environmentally friendly, and overcomes the problem that the catalyst residue caused by the use of metal catalyst in conventional cyclotrimerization reaction, which affects the polymer properties. Due to the typical aggregation-induced emission (AIE)-active tetraphenyl ethylene units, the tetraphenylethylene-containing hyperbranched polymers of the present invention has high fluorescence quantum yields in the aggregation state and has fully conjugated structures.

Abstract: An amplifier module includes carrier and peaking amplifier dies and an output combining circuit coupled to a module substrate. The output combining circuit includes carrier and peaking output circuits coupled between the carrier and peaking amplifier dies and a combining node. The carrier output circuit includes a harmonic termination circuit and a first transmission line coupled between the carrier amplifier die and the combining node. The peaking output circuit includes a second transmission line and a third transmission line coupled in series between the peaking amplifier die and the combining node, an intermediate node between the second and third transmission lines, and a first capacitor coupled between the intermediate node and the ground reference node. The combining node is configured to combine amplified carrier and peaking output signals produced by the carrier and peaking amplifier dies and conveyed through the carrier and peaking output circuits, respectively.

Abstract: An apparatus comprising an interface and a processor. The interface may be configured to receive pixel data of an environment. The processor may be configured to process the pixel data arranged as video frames, generate a luminance distribution map of the video frames in response to a low-pass filter operation, determine a plurality of defogging intensity weights for the luminance distribution map, perform adaptive smoothing to each of the plurality of defogging intensity weights, and generate defogged video frames in response to the video frames and the plurality of defogging intensity weights with the adaptive smoothing. The plurality of defogging intensity weights may each correspond to one of a plurality of luminance intervals of the luminance distribution map. The adaptive smoothing may be configured to prevent brightness differences in the defogged video frames.

Abstract: Embodiments of the disclosure discloses a question answering method and apparatus, a device and a medium. The method comprises: acquiring a current question, first historical question answering data, and a current chapter of a first script; inputting the current question, the first historical question answering data, and the current chapter into a dialog sub-model of a first model to obtain a current answer; adding the current question and the current answer to the first historical question answering data to obtain second historical question answering data; inputting the second historical question answering data and the current chapter into a determination sub-model of the first model to determine a completion result of a current task corresponding to the current chapter; generating a plot-related sentence by using the dialog sub-model based on the completion result of the current task, and presenting the plot-related sentence and the current answer.

Abstract: The present application discloses a method and apparatus for displaying information, an electronic device, a medium, and a product. A specific implementation solution is: displaying a to-be-recognized code scanner in a virtual space of a head-mounted display device, the to-be-recognized code scanner being configured with a corresponding virtual camera; performing parameter setting on the virtual camera based on display parameters of the to-be-recognized code scanner; acquiring a captured image of the virtual space captured by the virtual camera with set parameters; and displaying, in the virtual space, a recognition processing result of a to-be-recognized code in the captured image.

Abstract: A point cloud coding method, including: partitioning a point cloud, and determining a current coding block; determining a quantization parameter optimization enable identifier, a hierarchical level index, and a quantization parameter offset parameter of the current coding block; determining, according to the hierarchical level index and the quantization parameter offset parameter, a quantization step Qstep corresponding to a level of detail; and upon detecting that the quantization parameter optimization enable identifier is a first value, performing operations for one or more points included in the current coding block.

Abstract: A box body a high-voltage box apparatus, an energy storage device, and electric equipment. The high-voltage box apparatus includes a functional module and the box body is configured to the functional module is installed. The box body includes a housing, a support, and a tray assembly. The support is disposed inside the housing, and the tray assembly is movably disposed on the support. The housing is provided with a first opening thereon, and the tray assembly is movable between a first position and a second position relative to the support, the tray assembly is at least partially movable out of the housing through the first opening. The tray assembly is configured for fixing the functional module.

Abstract: An embodiment of the present disclosure provides a display substrate, which includes: a base; a plurality of pixel units; each of the pixel units includes a pixel driving circuit located on the base, and each of the pixel unit further includes a plurality of light-emitting elements located on a side, away from the base, of the pixel driving circuit and connected with the pixel driving circuit, where at least two of the light-emitting elements in each of the pixel units are sequentially stacked in a direction away from the base. Embodiments of the present disclosure further provide a method for manufacturing a display substrate, a method for driving a display substrate, a display panel and a display device.

Abstract: A Doherty power amplifier includes a combining node that combines amplified output signals from first and second amplifiers. A reconfigurable impedance inverter circuit is coupled between the first amplifier and the combining node. The impedance inverter circuit includes an inductive element coupled between a first node and a second node, and a switching circuit coupled between the first node and the second node. A fundamental frequency tuning circuit and a harmonic frequency resonance circuit are coupled between the switching circuit and a ground reference node. When the switching circuit is configured in a first state, the fundamental frequency tuning circuit and the harmonic frequency resonance circuit are electrically coupled through the switching circuit to the first and second nodes. When the switching circuit is configured in a second state, the fundamental frequency tuning circuit and the harmonic frequency resonance circuit are electrically disconnected from the first and second nodes.

Abstract: The disclosure provides a display panel, a manufacturing method thereof, and a display device, which belong to the field of display technology. The display panel includes a plurality of display islands (SPXL) and a plurality of deformable bridging units (SBRI); the plurality of display islands (SPXL) are separated from each other; and two adjacent display islands (SPXL) are connected by the bridging units (SBRI); the display island (SPXL) has at least one display unit (Upxl); and the bridging unit (SBRI) has an external signal wiring electrically connected to the display unit (Upxl).

Abstract: The present disclosure provides a display substrate, a manufacturing method thereof and a display device. The display substrate includes a base substrate, including a hollowed-out region, an island and a connection bridge; a plurality of display units; and a source/drain metal pattern, including patterns of a plurality of signal lines. On the island, a plurality of inorganic film layers is arranged between the base substrate and the source/drain metal pattern, and the plurality of inorganic film layers includes a first inorganic film layer arranged at a side furthest away from the base substrate. On the connection bridge, at least one first organic film layer is arranged between the base substrate and the source/drain metal pattern.

Abstract: A computerized method determines erasure coding (EC) formats for data extents in storage systems. Traffic history data of a data extent to be stored in the storage system is obtained. Estimated future traffic data is generated using a traffic estimation model, wherein the traffic history data is provided to the model as input. A current storage system constraint is calculated using the obtained traffic history data, and a constraint adjustment value is determined using a proportional, integral, derivative (PID) controller based on the current storage system constraint. An EC format for the data extent is determined using the estimated future traffic data and the determined constraint adjustment value and the data extent is stored in the storage system using the determined EC format. Use of the model and the PID controller balances optimized storage use with efficient data traffic handling.

Abstract: The present invention relates to efficient processes useful in the preparation of fluorinated nucleosides, such as (2S,3R,4S,5R)-5-(2-amino-6-oxo-1,6-dihydro-9H-purin-9-yl)-3-fluoro-4-hydroxy-2-(mercaptomethyl)tetrahydrofuran-3-yl dihydrogen phosphate, also known as 3?-fluoro-thio-guanosine monophosphate or 3?-F-thio-GMP. Such fluorinated nucleosides may be useful as a biologically active compound and or as an intermediate for the synthesis of more complex biologically active compounds. The present invention also encompasses intermediates useful in the disclosed synthetic processes and the methods of their preparation.

Abstract: The present disclosure provides a display panel comprising a bottom emitting type array substrate and a wavelength converting unit, wherein the wavelength converting unit is in contact with a transparent substrate layer of the array substrate, and the transparent substrate layer has a thickness of 5 ?m or less. The present disclosure also provides a method for manufacturing the display panel by using a subtractive manufacture process.

Abstract: In a decision-support system for gastrointestinal (GI) endoscopy, convolutional neural networks (CNNs) are set up to perform decision-support tasks according to endoscopic images. Each learnable kernel used in the CNNs is advantageously modeled as a linear combination of a set of fixed kernels for simplifying kernel learning, giving a lightweight kernel model to advantageously reduce required computation resources. Further computation-resource reduction can be made by CNN model compression via knowledge distillation and by using multi-task CNNs. It enables the decision-support system to be realized as an edge computing system near a site of performing endoscopic examinations. The system can be automatically configured for esophagogastroduodenoscopy (EGD) or colonoscopy.

Abstract: A rock direct tensile test platform suitable for all material test machines includes a support frame. A top of the support frame is fixed with a top plate, and a bearing plate is provided above the top plate. The bearing plate is provided with a plurality of vertical force transferring rods. The force transferring rods vertically penetrate through the top plate and have a sliding fit with the top plate. Lower ends of the force transferring rods are provided with a tensile base. A top of the tensile base is provided with a lower clamp holder. A bottom of the top plate is provided with an upper clamp holder, and a clamp center of the upper clamp holder coincides with a clamp center of the lower clamp holder.

Abstract: A display substrate, a display apparatus, and a visible light communication system are disclosed. The display substrate includes an effective display region and a peripheral region surrounding the effective display region, the display substrate includes a base substrate, and a display unit, a light receiving unit, and a light emission unit on the base substrate. The display unit is in the effective display region and includes multiple light emitting sub-pixels; the light receiving unit is in at least one of a first light transceiving region and a second light transceiving region, the light emission unit is in at least one of a first light transceiving region and a second light transceiving region. The first light transceiving region is in the peripheral region and is an annular region surrounding the effective display region, and the second light transceiving region is between multiple light emitting sub-pixels of the effective display region.

Abstract: The present application provides use of Monascinol in preparation of a fat-reducing product, a method for preventing or treating a disease related to abnormal lipid metabolism, and a fat-reducing product including Monascinol. The fat-reducing product includes a fat-reducing functional food and a fat-reducing drug, the fat-reducing functional food is used for preventing or improving a sub-health state related to obesity in an individual, the fat-reducing drug is used for preventing or treating a disease related to abnormal lipid metabolism in an individual. It is found that in the solution of the present application the Monascinol has new functions of significantly lowering blood lipid, controlling weight gain, and inhibiting body fat accumulation; and has low cytotoxicity, thereby having high use safety when serving as a fat-reducing product.

Abstract: A method for controlling vehicle parking, includes: obtaining, by a processor, a current vehicle speed and a current vehicle control level of a vehicle; obtaining, by the processor, a target vehicle speed of the vehicle, and obtaining a target vehicle control level of the vehicle according to the current vehicle control level; obtaining, by the processor, a first vehicle control level according to the current vehicle speed, the target vehicle speed, the current vehicle control level, and the target vehicle control level; and controlling, by the processor, the vehicle to run according to the first vehicle control level.

Abstract: The present disclosure relates to a display device, a display panel and a manufacturing method thereof. The display panel includes a driving backplane and a light emitting device layer, and the driving backplane includes multiple pixel driving circuits, the light emitting device layer includes multiple light emitting units distributed in an array, the light emitting unit includes multiple light emitting devices stacked in a direction away from the driving backplane, and light emitting devices other than a light emitting device closest to the driving backplane in a direction perpendicular to the driving backplane are transparent devices; and in the same light emitting unit, at least part of the light emitting devices are coupled to the pixel driving circuits for emitting light under driving of the pixel driving circuits, and at least two light emitting devices in the same light emitting unit have different light emitting materials.