Abstract: This application discloses an encoding method, a decoding method, and an apparatus. The encoding method includes: obtaining a first bit sequence and a target code length M; then performing first channel encoding on the first bit sequence, to obtain a second bit sequence; performing second channel encoding based on the second bit sequence, to obtain a third bit sequence; and outputting the third bit sequence. The first bit sequence includes K information bits, the second bit sequence includes N bits, and the third bit sequence includes the N bits and E check bits, where M>N, and E=M?N. M, K, N, and E are all integers greater than or equal to 1.

Abstract: An encoding method, a decoding method, and a communication apparatus. The communication apparatus obtains an information bit sequence with a length K. A length K1 of a first sequence based on K or M is determined, where M is a quantity of modulation symbols. A first vector is obtained based on K, K1, and a predefined sequence. A length of the first vector is 2JM, J is a modulation order, the first vector indicates J coding sub-blocks, the J coding sub-blocks separately belong to a first-type sub-block including at least one coding sub-block or a second-type sub-block including at least one coding sub-block. The communication apparatus determines frozen bit locations in the first-type sub-block and information bit locations in the second-type sub-block and encodes the information bit sequence based on the frozen bit locations in the first-type sub-block, the information bit locations in the second-type sub-block, and the first vector.

Abstract: A magneto-optic thin film includes a substrate; a diffusion barrier layer disposed on the substrate, where the diffusion barrier layer includes a metal oxide; a buffer layer disposed on the diffusion barrier layer; and an optical isolation layer disposed on the buffer layer. The metal oxide in the diffusion barrier layer growing on the substrate is polycrystalline.

Abstract: A message notification method comprises obtaining, by an ANDROID operating system (OS) running in an ANDROID container, a notification message by monitoring a message processing process of an ANDROID application, sending the notification message to a processor, determining, by the processor and based on an application window associated with the ANDROID application in the notification message, a state of the application window, and displaying in a corresponding manner based on different states of the application window.

Abstract: This application discloses a retransmission method and an apparatus. The method includes: obtaining a first bit sequence and a number E of to-be-retransmitted bits, performing second channel encoding based on the first bit sequence to obtain a second bit sequence, and performing retransmission based on the second bit sequence. The first bit sequence is obtained by performing first channel encoding based on K information bits, a length of the first bit sequence is N, N, E, and K are all integers greater than or equal to 1, and the second bit sequence includes the E to-be-retransmitted bits. According to the method, a code length can be flexibly extended based on different numbers E of to-be-retransmitted bits.

Abstract: A laser interference photolithography system, comprising a laser device, a first reflector, a grating beam-splitter, a second reflector, a first universal reflector, a first lens, a second universal reflector, a second lens, a beam splitting prism, a control module, an angle measurement module, a third lens and a substrate. The control module comprises a signal processing terminal, a controller, and a driver. The signal processing terminal is connected to the angle measurement module, the controller is connected to both the signal processing terminal and the driver, and the driver is connected to both the first universal reflector and the second universal reflector. The laser emits a laser light that is split into two beams of light by the system, and the two beams of light are focused on the substrate for exposure.

Abstract: A metal member for a household appliance includes a first surface and a second surface connected to each other. The second surface is inclined with respect to the first surface, and the second surface has a reflectivity higher than that of the first surface. A household appliance having the metal member is also provided.

Abstract: In a routing information management method, a primary route generation unit generates routing information related to a TCP packet, and the primary route generation unit sends the routing information and first identification information of the routing information to a database unit, where the first identification information is determined based on the TCP packet.

Abstract: A robot operating device includes a mobile vehicle, a guide rail installed on the mobile vehicle, and a plurality of robots slidably installed on the guide rail and movable along the guide rail. The mobile vehicles each include a mobile base having a roller at a bottom thereof, and a fixed bracket installed on the mobile base. The guide rail is fixedly installed on the fixed bracket and extends in a horizontal direction. The plurality of robots are adapted to manipulate a product manufacturing machine to manufacture products.

Abstract: A method for predicting performance of LED structure is provided. The prediction method mainly includes: collecting and extracting input feature parameters and output feature parameters of LED structures, and constructing corresponding datasets; preprocessing data in the datasets; constructing a model using a machine learning algorithm, setting structural parameters of the model, and performing initialization training on the model to obtain an initial model; using preprocessed datasets to train and optimize the initial model, thereby obtaining a prediction model; inputting input feature parameters of an LED structure to be predicted into the prediction model, thereby obtaining prediction values of output feature parameters of the LED structure to be predicted. The prediction method can predict the performance of LED structure, has short prediction time, and has high prediction accuracy.

Abstract: One example discloses a method of interference estimation for communications between WLAN (wireless local area network) devices, including: adding a set of interference estimation attributes to a PPDU; transmitting the PPDU from and receiving the PPDU at a WLAN device; and estimating a set of interference statistics, by the WLAN device, by comparing the set of interference estimation attributes to a corresponding set of predefined attribute values.

Abstract: The present invention relates to the technical field of block chains, and discloses a data security management method, system and storage medium for smart contract based on block chain network, comprising storing information of at least one public key in asymmetric public and private keys synchronously when generating the smart contract; triggering a data management request, establishing block chain network communication, calling the smart contract to generate validation data, rendering timeliness management to the validation data, sending the same to a data management request end and calling at least one private key, signing the validation data, reorganizing the same with data to be managed and making corresponding management operations; data modifications caused by malicious attacks to data in the contract due to disclosure of the contract or other security defects are addressed, safety of data in the chains is efficiently promised and the present invention is of realistic utility value.

Abstract: A method for predicting performance of solar cell structure includes: collecting and extracting input feature parameters of solar cell structures and corresponding output feature parameters; establishing corresponding data sets, and preprocessing the data sets according to a known criterion; constructing a model by utilizing a machine learning algorithm, and setting structural parameters and performing initialization training on the model; performing training optimization on the model subjected to setting the structural parameters and performing the initialization training by using a preprocessed training data set to obtain a prediction model; and inputting a preprocessed test data set of a to-be-predicted solar cell structure into the prediction model to obtain predicted values of output feature parameters of the to-be-predicted solar cell structure. The performance of solar cell structure can be rapidly predicted, which is convenient to operate and has a high accuracy.

Abstract: A coding algorithm encodes consecutive frames of a video sequence and realizes distributed Gradual Decoding Refresh. The consecutive frames include a first frame, a second frame, and a third frame, and each frame is composed of (X+Y+Z) columns of coding tree units. The algorithm includes: coding X columns of the first frame in an intra coding manner and coding the other columns of the first frame in an inter coding manner and/or the intra coding manner; coding X columns of the second frame in the inter coding manner, coding Y columns of the second frame in the intra coding manner, and coding Z columns of the second frame in the inter and/or intra coding manner(s); and coding X and Y columns of the third frame in the inter coding manner, and coding Z columns of the third frame in the intra coding manner. The X/Y/Z columns (intra-coded columns) are inconsecutive.

Abstract: A vacuum adsorption module includes a supporting block, a carrier installed and positioned on the supporting block, and a plurality of valves installed on the supporting block. The supporting block has a plurality of air connection holes, each row of air connection holes is connected to a total air path formed in the supporting block via a branch air path formed in the supporting block. The carrier has a plurality of air suction holes corresponding to the air connection holes. The valves control closing and opening of the branch air paths between the plurality of rows of air connection holes and the total air path. An adsorption length of the carrier in a column direction of the array is adjustable to match a length of an article to be adsorbed by the carrier by changing a number of the valves to be closed or opened.

Abstract: A manufacturing system includes equipment adapted to produce a flexible ribbon product, a control device adapted to control working parameters of the production equipment, and a signal adjustment device adapted to adjust control signals of the control device online and in real time to adjust the working parameters. The signal adjustment device includes a visual device for capturing online and real-time images of the flexible ribbon product produced by the production equipment, and a computer. The computer includes a calculation module adapted to calculate an offset distance between an insulation film on the produced flexible ribbon product and a forming area online and in real-time based on the captured images, and an adjustment module adapted to adjust the control signals of the control device online and in real-time based on the calculated offset distance until the offset distance is equal to zero.

Abstract: An elastic clip installation system includes a loading tray on which an elastic clip to be installed is loaded and a pickup device picking up the elastic clip from the loading tray. The pickup device includes a pair of clamping claws and a holding claw. The clamping claws grip the elastic clip from a left side and a right side of the elastic clip. The holding claw holds the elastic clip at a predetermined position on the loading tray to prevent movement of the elastic clip when the elastic clip is gripped by the clamping claws.

Abstract: An image acquisition system comprises an image capture device and a guide mechanism. The image capture device captures an image of at least a part of a surface of an article located on an article placement surface. The guide mechanism is positioned to be separated from the article placement surface. The image capture device is movably mounted on the guide mechanism such that the image capture device is movable along the guide mechanism to adjust a spacing between the image capture device and the surface of the article located on the article placement surface. The image capture device captures the image when the spacing is equal to a predetermined working distance.

Abstract: A vacuum switching valve and a suction system having the same. The vacuum switching valve comprises: a valve body, comprising a first end and a second end, the second end being provided with an air inlet, an air outlet and a through hole; a valve element movably arranged in the valve body; a cylinder, the cylinder being connected to the first end and the valve element, the cylinder drives the valve element to move in the valve body, to close or open the air inlet; a stopper passing through the through hole, the stopper comprising a third end and a fourth end, the third end being connected to the valve element, the fourth end being located on the side of the through hole away from the valve element.