Abstract: A close-range microwave imaging method includes: implementing Fourier transform in a pre-set rotation axis direction on an echo signal reflected from a target object and acquired by rotating an array antenna around the pre-set rotation axis to obtain a first echo signal, wherein the first echo signal is represented in polar coordinates; multiplying the first echo signal by a pre-set reference function to obtain a second echo signal; converting the second echo signal into rectangular coordinates by a pre-set algorithm to obtain a third echo signal; and implementing three-dimensional Fourier transform on the third echo signal to obtain three-dimensional image data of the target object. By means of the method, three-dimensional image data of a target object can be obtained fast, fast imaging of the target object can be realized, the data processing amount is small, the imaging precision is high and the method is easy to implement.

Abstract: A radio frequency transmitter includes a digital-to-analog converter, an analog baseband processor, and a modulator. The digital-to-analog converter is configured to convert a digital frequency-converted signal into a first analog signal, where the digital frequency-converted signal is obtained by performing digital frequency conversion on a digital baseband signal based on a first frequency signal; the analog baseband processor is configured to perform filtering and gain adjustment on the first analog signal to obtain a second analog signal; and the modulator is configured to perform up conversion based on a second frequency signal and the second analog signal, to obtain a radio frequency signal, where the second frequency signal is determined based on a local frequency signal and the first frequency signal.

Abstract: A touch panel and a manufacturing method thereof and a touch display device are disclosed. The touch panel includes: a base substrate; and a first touch electrode on the base substrate, the first touch electrode including a plurality of first touch electrode lines intersecting with one another, wherein in a direction perpendicular to the base substrate, each of the first touch electrode lines include at least two laminated transparent conductive layers, which include a laminate of a first metal oxide layer and a first metal layer, or a laminate of the first metal oxide layer and a first graphene layer.

Abstract: The present invention discloses a surface orientation sensing structure, where six printed circuit boards are combined to form a regular hexahedron as the axis of an intelligent magic cube, and a main control chipset can recognize layer rotation by simply sweeping a copper foil through a brush sheet to cause a level change, so that the position change of the layer can be recognized more accurately, a step loss rate is reduced, parts are reduced, and the assembly process is simplified. The present invention further discloses an intelligent magic cube, where all the parts related to orientation sensing are concentrated on the axis, so that the intelligent magic cube can be operated more easily and smoothly, the intelligent functions of the intelligent magic cube can be used more smoothly, and user experience is improved.

Abstract: This application discloses a motion vector obtaining method and apparatus, a computer device, and a storage medium. In the method, an initial motion vector of a to-be-processed picture block is determined by using a location relationship between a reference block and the to-be-processed picture block. When the reference block and the to-be-processed picture block are located in a same coding tree block, a decoder uses an initial motion vector of the reference block as the initial motion vector of the to-be-processed picture block. When the reference block and the to-be-processed picture block are located in different coding tree blocks, the decoder uses a final motion vector of the reference block as the initial motion vector of the to-be-processed picture block.

Abstract: A display panel includes: an active area; a peripheral area; a solder pad area at a side of the peripheral area away from the active area; a first source-drain electrode layer, a passivation layer and a second source-drain electrode layer and a dielectric layer stacked on a back plate in the peripheral area; a touch electrode in the active area; a touch electrode line connected to the touch electrode. The touch electrode line extends from the active area to the peripheral area, and is connected to the solder pad area through the second source-drain electrode layer in the peripheral area. The touch electrode line is connected to the second source-drain electrode layer through a first through hole in the dielectric layer. A portion of a surface of the second source-drain electrode layer, which is away from the passivation layer and exposed through the first through hole, is a flat surface.

Abstract: The present disclosure provides a method and system for detecting a detection device located at an energy metering point of natural gas, comprising: obtaining a first detection data set collected by the detection device located at the energy metering point of the natural gas and determining whether the detection device is abnormal based on the first detection data set and a first historical detection data set.

Abstract: The present disclosure proposes a language generation method and apparatus. The method includes: performing encoding processing on an input sequence by using a preset encoder to generate a hidden state vector corresponding to the input sequence; in response to a granularity category of a second target segment being a phrase, decoding a first target segment vector, the hidden state vector, and a position vector corresponding to the second target segment by using N decoders to generate N second target segments; determining a loss value based on differences between respective N second target segments and a second target annotated segment; and performing parameter updating on the preset encoder, a preset classifier, and the N decoders based on the loss value to generate an updated language generation model for performing language generation.

Abstract: A stand (100) is disclosed. The stand (100) may include a first connecting component and a second connecting component. The first connecting component may include at least one fixing element and a chamber. The chamber may have an opening. The second connecting component may include an insertion portion including at least one fixing element and a chamber. The chamber may have an opening. When the insertion portion of the second connecting component is inserted, along an axis in an insertion direction, into the chamber through the opening, the fixing element in the first connecting component may work in pairs with the insertion portion to cause the first connecting component to be connected with the second connecting component.

Abstract: Methods, devices and systems for intra-block coding based decoding or encoding of video while using block vector signaling and/or merge candidates are disclosed. An example method for video processing includes performing a conversion between a video region of a video and a bitstream representation of the video, wherein the bitstream representation selectively includes motion vector difference (MVD) related syntax elements for an intra block copy (IBC) advanced motion vector prediction (AMVP) mode based on a maximum number of a first type of IBC candidates used during the conversion of the video region, wherein, when an IBC mode is applied, samples of the video region are predicted from other samples in a video picture corresponding to the video region.

Abstract: A three-dimensional object molding method and molding device, where the method includes the following steps: forming a powder particle layer, wherein the powder particle layer at least contains thermosetting powder particles capable of undergoing thermal polymerization; spraying a photocurable material onto the powder particle layer according to layer printing data, such that the photocurable material covers at least part of the powder particle layer and permeates into this layer; curing the photocurable material to form a slice layer; repeating the steps to obtain a plurality of slice layers, and stacking the plurality of slice layers layer-by-layer to form a three-dimensional object green body; and heating the green body to thermally polymerize the thermosetting powder particles so as to obtain the three-dimensional object. The method provided in the present application enables the obtained three-dimensional object to have very good mechanical properties and a high molding accuracy.

Abstract: Embodiments of the present specification provide a method, an apparatus, a client terminal, and a server for data processing. The method includes: selecting, based on a data attribute of to-be-processed data, a target coordinating server from a plurality of coordinating servers, the plurality of coordinating servers belonging to a plurality of server clusters respectively; and sending a data processing request to the target coordinating server, such that a server cluster to which the target coordinating server belongs processes the data processing request preferentially, the data processing request directing to the to-be-processed data.

Abstract: An intelligent hotspot scattering method includes learning request quantity curves of a plurality of URLs based on an artificial intelligence learning model and performing request quantity prediction on the plurality of URLs, determining a first URL from the plurality of URLs, determining a second URL from the plurality of URLs, and performing a hotspot scattering operation on the URLs. A predicted request quantity of the first URL is greater than or equal to a first predetermined request quantity threshold corresponding to the first URL. A request quantity of the second URL is not predictable and an actual request quantity of the second URL is greater than or equal to a second predetermined request quantity threshold corresponding to the second URL.

Abstract: An information transmission method, a communications device, and a network device are provided. The information transmission method includes: receiving first downlink control information, wherein the first downlink control information comprises scheduling information used to transmit first data, and the format of the first downlink control information is DCI format 6-0B, the first downlink control information comprises indication information, and the indication information is used to indicate that the first data transmitted by the communications device is a first message 3 or a second message 3; and transmitting the first data based on the scheduling information and the indication information.

Abstract: Disclosed are an optical fingerprint sensor, a preparation method thereof and a display device. The optical fingerprint sensor includes: a substrate; and a sensor unit, disposed on the substrate and including a thin film transistor and a photosensor electrically connected to the thin film transistor, where the thin film transistor includes a source electrode, a drain electrode, a semiconductor layer, and a light shield layer formed over a channel region between the source electrode and the drain electrode and shielding the semiconductor layer exposed in the channel region.

Abstract: A service implementation method, apparatus, and system are disclosed. The service implementation method includes: receiving, by a serving gateway, a data packet of a terminal device sent by a packet data network gateway; if the data packet is a data packet with a serving priority and the serving gateway has sent a paging trigger message with a serving priority to a mobility management element, skipping, by the serving gateway, sending a paging trigger message to the mobility management element; or if the data packet is a data packet with a serving priority and the serving gateway has sent no paging trigger message with a serving priority to a mobility management element, sending, by the serving gateway, a paging trigger message to the mobility management element; wherein the paging trigger message is used to enable the mobility management element to page the terminal device.