Abstract: A method for attenuation map generation may include obtaining first PET data relating to first background events occur during a first PET scan, which is performed by a PET scanner with no subject within a detection tunnel of the PET scanner; obtaining second PET data relating to second background events occur during a second PET scan, which is performed by the PET scanner with a subject within the detection tunnel; generating, based on the first PET data and the second PET data, a target attenuation map of the subject, wherein the first background events and the second background events may occur when a first particle and a second particle are detected by crystal units of the PET scanner within a background coincident window, and the first particle and the second particle may be different types of particles produced by a radioactive decay of a crystal material of the PET scanner.

Abstract: The present application relates to the technical field of organic materials and provides an organic compound, an electronic component and an electronic apparatus containing the organic compound. The organic compound has a structure shown in Formula 1. The organic compound, when used in an organic electroluminescent device, can improve the performance of the device.

Abstract: A memory array and an operation method of the memory array are provided. The memory array includes first and second ferroelectric memory devices formed along a gate electrode, a channel layer and a ferroelectric layer between the gate electrode and the channel layer. The ferroelectric memory devices include: a common source/drain electrode and two respective source/drain electrodes, separately in contact with a side of the channel layer opposite to the ferroelectric layer, wherein the common source/drain electrode is disposed between the respective source/drain electrodes; and first and second auxiliary gates, capacitively coupled to the channel layer, wherein the first auxiliary gate is located between the common source/drain electrode and one of the respective source/drain electrodes, and the second auxiliary gate is located between the common source/drain electrode and the other respective source/drain electrode.

Abstract: The present disclosure provides systems and methods for motion correction of a positron emission computed tomography (PET) image. The method may include: obtaining scanned images of a scanned object generated at a plurality of time points; and determining a parametric image by performing a correction processing on the scanned images, wherein the correction processing may be configured to correct an influence of a motion of the scanned object on the scanned images.

Abstract: A fail-safe input/output device includes an input/output circuit, a comparator circuit and a resistance adjustment circuit. The input/output circuit transmits a voltage having a higher voltage level in a first supply voltage and a second supply voltage to a first node to generate a driving voltage, wherein a first target level of the first supply voltage is lower than a second target level of the second supply voltage. The comparator circuit compares the first supply voltage with the second supply voltage to generate a control signal, and selectively transmits the first supply voltage to the first node according to the control signal. The resistance adjustment circuit adjusts a resistance between the first node and a second node according to the second supply voltage, wherein the input/output circuit transmits the second supply voltage to the first node via the second node.

Abstract: The present application relates to an array substrate and a display panel. According to the present application, a first sharing line is correspondingly disposed under the data line, an electric field of the data line is shielded through the first sharing line, a coupling effect between the data line and a first common line is reduced through the first sharing line, a crosstalk caused to the data line due to fluctuation of the first common line is reduced, and a problem in the prior art of using a common electrode line to shield a lateral electric field of the data line, resulting in a low aperture ratio of a display panel, is prevented.

Abstract: Disclosed herein is a doped perovskite barium stannate material, which has a chemical general formula of BaAxBxSn1-2xO3, where A is at least one of In, Y, Bi and La; B is at least one of Nb and Ta, and 0<x?0.025. The doped perovskite barium stannate material disclosed in the invention has a high dielectric constant, low dielectric loss and good temperature-stability, and it can be used not only as low-frequency ceramic capacitor dielectrics, but also as microwave dielectric ceramics because of its excellent microwave dielectric properties, implying the potential application in the field of microwave communication. What's more, disclosed is a method to prepare the doped perovskite barium stannate material and the application of the doped perovskite barium stannate material in a low-frequency ceramic capacitor or microwave communication dielectric ceramics.

Abstract: The present disclosure is directed to a deep learning system for differential diagnoses of skin diseases. In particular, the system performs a method that can include obtaining a plurality of images that respectively depict a portion of a patient's skin. The method can include determining, using a machine-learned skin condition classification model, a plurality of embeddings respectively for the plurality of images. The method can include combining the plurality of embeddings to obtain a unified representation associated with the portion of the patient's skin. The method can include determining, using the machine-learned skin condition classification model, a skin condition classification for the portion of the patients skin, the skin condition classification produced by the machine-learned skin condition classification model by processing the unified representation, wherein the skin condition classification identifies one or more skin conditions selected from a plurality of potential skin conditions.

Abstract: The present invention provides a crystal growing method, an apparatus and a RF-SOI substrate for growing a crystal. The crystal growing method may comprise: controlling a first superconducting coil to generate a first current, and controlling a second superconducting coil to generate a second current, wherein a value of the first current is not equal to a value of the second current, the first superconducting coil and the second superconducting coil are superconducting coils positioned oppositely outside a crucible to generate a magnetic field in the crucible; and pulling upwards to grow a monocrystalline in an asymmetric magnetic field generated by the first current and the second current in the crucible.

Abstract: The present application provides organic compounds, an organic electroluminescent device. and an electronic apparatus. The structure of the organic compound is shown as formula 1, the organic compounds being used in an organic electroluminescent device to improve the performance of the device.

Abstract: The present application relates to the technical field of organic materials and provides an organic compound, an electronic component and an electronic apparatus containing the organic compound. The organic compound has a structure shown in Formula 1. The organic compound, when used in an organic electroluminescent device, can improve the performance of the device.

Abstract: An orbiting scroll plate driving assembly provided by the present application includes a main shaft (7), a tail driving shaft (6), and an eccentric shaft sleeve (5). The tail driving shaft (6) is eccentrically connected to the main shaft (7), and the eccentric shaft sleeve (5) is rotatably sleeved on the tail driving shaft (6). The orbiting scroll plate driving assembly further includes a limiting portion (14). The limiting portion (14) is disposed on the tail driving shaft (6), and provided with a first limiting portion protrusion (141). The eccentric shaft sleeve (5) is provided with an eccentric shaft sleeve groove (51). The first limiting portion protrusion (141) is correspondingly inserted into the eccentric shaft sleeve groove. A circumferential size of the eccentric shaft sleeve groove (51) is larger than a circumferential size of the first limiting portion protrusion (141).

Abstract: A semiconductor crystal growth method and device are provided. The method comprises: obtaining an initial position of a graphite crucible when used in a semiconductor crystal growth process for the first time; obtaining a current production batch of the graphite crucible which characterizes a number of times of growth processes performed by the graphite crucible so far; and loading polysilicon raw materials into a quartz crucible sleeved in the graphite crucible based on the current production batch, wherein a total weight of the materials is called a charging amount, and the charging amount is adjusted based on the current production batch to keep an initial position of a silicon melt liquid surface in the quartz crucible stable while keeping the initial position of the graphite crucible unchanged. The present invention ensures the stability of each parameter in the crystal pulling process, and enhances the crystal pulling speed and quality.

Abstract: The disclosure relates to an activity recognition method of a large receptive field (LRF) large-kernel attention convolution network based on a large receptive field, the method includes the following steps: collecting an action signal, carrying out a preprocessing and a data partition on the action signal to obtain a data set; and training an LRF large-kernel attention convolution network model based on the data set, and introducing a trained LRF large-kernel attention convolution network model into a mobile wearable recognition device for human posture recognition.

Abstract: Scroll compressor, a vehicle air conditioner and a vehicle are disclosed. The scroll compressor includes a first end cover, a casing and a crankshaft. The casing is provided with a supporting portion having a first bearing mounting portion; the first end cover is provided with a second bearing mounting portion; a first end of the crankshaft is arranged in the first bearing mounting portion through a first bearing; a second end of the crankshaft is arranged in the second bearing mounting portion through a second bearing; and the first bearing mounting portion and the second bearing mounting portion cooperate with each other to form an axial limitation on the crankshaft.

Abstract: Example methods and apparatus for transmitting ACK/NACK information for data are disclosed. One method includes sending a data packet from a base station to a user equipment. A control signaling is transmitted from the base station to the user equipment and is used to indicate a subframe to be used by the user equipment to send ACK/NACK information corresponding to the data packet.

Abstract: A method for making a spatio-temporal combined optimal scheduling strategy of a mobile energy storage (MES) system includes: inputting data of a power system, a traffic system, and an MES system; setting a time interval, and initializing a time interval counter; inputting real-time fault, traffic, and MES data; and performing rolling optimization and solving, and delivering regulation decision instructions of the MES system, till a fault is removed. The core of the present disclosure is to propose a spatio-temporal combined optimal model of the MES system to describe spatio-temporal coupling statuses of an energy storage vehicle, a traffic network, and a power distribution network. The present disclosure provides guidance for an optimal scheduling decision of the MES system by properly regulating a traveling path and charging and discharging power of the MES system, thereby supporting high-reliability operation of the power distribution network.

Abstract: This application discloses a precoding method and apparatus, and an information transmission method and apparatus, and relates to the field of communications technologies, to help improve overall performance of a plurality of data streams corresponding to a same codeword. The precoding method includes: decomposing a channel matrix into a product of a matrix Q, a matrix R, and a matrix PH, where the matrix PH is a conjugate transpose matrix of a matrix P, both the matrix Q and the matrix P are unitary matrices, and the matrix R is an upper triangular matrix; and precoding to-be-sent data based on the matrix P.

Abstract: The present disclosure concerns synthesis, anion binding features, liquid-liquid extraction of salts, and anti-corrosion character of aryl-triazole bicyclic macrocycles of Formula (I) and related compounds:

Abstract: The method includes: sending first resource information on a first sidelink transmission channel, where the first resource information indicates a first resource; and receiving indication information on a second sidelink transmission channel, where the indication information indicates at least one second resource in the first resource; or receiving data sent on a second resource, where the second resource is determined based on the first resource.