Abstract: A method for colour component prediction, an encoder, a decoder and a storage medium are provided. The method includes that: prediction parameters of a current block are determined, the prediction parameters including a prediction mode parameter and a size parameter of the current block; when the prediction mode parameter indicates that a Matrix-based Intra Prediction (MIP) mode is adopted to determine an intra prediction value of the current block, an MIP weight matrix of the current block, a shift factor of the current block and an MIP input sample matrix of the current block are determined; and the intra prediction value of the current block is determined according to the MIP weight matrix, the shift factor and the MIP input sample matrix.

Abstract: Methods for determining a prediction value, an encoder, and a decoder are provided. Reconstructed values of neighboring samples of a current block are acquired, and then filtered to obtain a reference value set of the current block. When a size of the current block is smaller than a preset threshold value, a first constant value is calculated according to a bit depth value of a luma component of a sample in the current block. A difference between the first constant value and a first reference value in the reference value set is determined as a first prediction input value in a prediction input value set. Other prediction input values in the prediction input value set other than the first prediction input value are determined according to the reference value set. Prediction values of samples at specific positions in the current block is calculated and then filtered.

Abstract: Provided are a picture encoding and decoding method, an encoder, a decoder and a storage medium. The decoder decodes a bitstream to obtain a size, a coding mode, and residuals of a current block; when the coding mode of the current block is an MIP mode, calculates a second offset based on the size of the current block, a first offset and reconstructed values of adjacent pixels corresponding to the current block; determines a first prediction value of the current block according to the second offset; and determines a reconstructed value of the current block based on the first prediction value.

Abstract: A heat management system includes a first heat exchanger, a second heat exchanger, a heat pump, an electric assembly waterway, a radiator waterway, a battery waterway, and a heat exchange waterway. The heat pump module includes a first heat exchange pipeline and a second heat exchange pipeline. A first heat exchange passage and a second heat exchange passage of the first heat exchanger are respectively disposed on the second heat exchange pipeline and the heat exchange waterway. A third heat exchange passage of the second heat exchanger is disposed on the first heat exchange pipeline, and a fourth heat exchange passage of the second heat exchanger is in communication with the radiator waterway. The radiator waterway and the electric assembly waterway may be in communication in series.

Abstract: A thermal management system includes a heat pump, a battery waterway, a heat exchange waterway, a heat dissipator waterway, an electric assembly waterway, a first heat exchanger, and a control valve group. A first heat exchange path of the first heat exchanger is connected to the heat pump, and a second heat exchange path of the first heat exchanger is connected to the heat exchange waterway. The electric assembly waterway may be connected to the heat dissipator waterway or the heat exchange waterway in series. The battery waterway may be connected to the heat dissipator waterway or the heat exchange waterway in series. The battery waterway, the heat exchange waterway, the heat dissipator waterway, and the electric assembly waterway may be connected in series.

Abstract: A prediction method, an encoder, a decoder, and a computer storage medium are provided. The prediction method applied to an encoder includes: determining a spatial block in which an encoding point is located; constructing a prediction model according to the spatial block; acquiring a value of a first colour component and a value of a second colour component of the encoding point; obtaining a prediction value of the second colour component of the encoding point by using the prediction model and the value of the first colour component; calculating a difference between the value of the second colour component and the prediction value of the second colour component, and using the obtained difference as a residual of the encoding point; and performing Level of Detail (LOD) partitioning and lifting transform based on the residual of the encoding point.

Abstract: The present disclosure discloses a method for realizing macroscopic super-lubrication by a matching pair of nano metal-coated steel balls and hydrogen-containing carbon films, which is based on the use of nano metal-coated steel balls and diamond-like films with a hydrogen content of 25-30% as the matching pair. Further, a tribochemical reaction occurs through the catalytic action of nano metal during the friction process to form a nano graphene transfer film with incommensurate contact at the contact interface to achieve macroscopic super-lubrication.

Abstract: A method for colour component prediction, an encoder, a decoder and a storage medium are provided. The method includes that: prediction parameters of a current block are determined, the prediction parameters including a prediction mode parameter and a size parameter of the current block; when the prediction mode parameter indicates that a Matrix-based Intra Prediction (MIP) mode is adopted to determine an intra prediction value of the current block, an MIP weight matrix of the current block, a shift factor of the current block and an MIP input sample matrix of the current block are determined; and the intra prediction value of the current block is determined according to the MIP weight matrix, the shift factor and the MIP input sample matrix.

Abstract: A method and apparatus for inter prediction. According to the position of a current block in a video picture, first motion information and second candidate motion information is determined, the motion information at least includes a motion vector; it is determined whether the distance between the motion vector of the first motion information and the motion vector of the second candidate motion information is greater than a first threshold; if the determination result is that the distance is less than or equal to the first threshold, the second candidate motion information is updated to obtain second motion information; if the determination result is that the distance is greater than the first threshold, the second candidate motion information is taken as the second motion information; and inter prediction is performed on the current block by using the first motion information and the second motion information.

Abstract: The implementation of the present disclosure provides a point cloud partitioning method and device, and a computer-readable storage medium, including: when performing stripe division along the longest side, adjusting an initial partitioning position or determining the stripe division length according to the size of a preset block, to obtain a stripe division position, wherein, the length of the first n?1 stripes along the longest side is an integer multiple of the side length of the preset block, n is the number of divided stripes, and n is a positive integer greater than or equal to 2.

Abstract: The embodiments of the present disclosure provide a method and an Internet of Things (IoT) system for gas purification management in a storage and distribution station for smart gas. The method is implemented based on the IoT system for gas purification management in the storage and distribution station for smart gas. The IoT system includes a smart gas user platform, a smart gas service platform, a smart gas device management platform, a smart gas sensor network platform, and a smart gas object platform. The method is executed by the smart gas device management platform. The method includes: obtaining a gas quality condition parameter of a raw gas, and the gas quality condition parameter being obtained based on the storage and distribution station; determining, based on the gas quality condition parameter, an operation parameter in a purification process, the operation parameter being used for a purification operation of the raw gas.

Abstract: A catalyst composition for converting an alcohol to olefins, the catalyst composition comprising the following components: (a) a support (e.g., particles) comprising silicon and oxygen; (b) at least one of copper and silver residing on and/or incorporated into said support; and (c) at least one lanthanide element residing on and/or incorporated into said support. The catalyst may also further include component (d), which is zinc. Also described herein is a method for converting an alcohol to one or more olefinic compounds (an olefin fraction) by contacting the alcohol with a catalyst at a temperature of at least 100° C. and up to 500° C. to result in direct conversion of the alcohol to an olefin fraction containing one or more olefinic compounds containing at least three carbon atoms; wherein ethylene and propylene are produced in a minor proportion of the olefin fraction, and butenes and higher olefins are produced in major proportion.

Abstract: A cable holder, a magnetic ring fixing device, and an air conditioner outdoor unit. The cable holder includes a holder body; cable grooves running through a side of the holder body are provided in the holder body; two side groove walls of each cable groove are respectively connected to first clamping arms towards the bottom of the groove at an opening; the distance between the two first clamping arms gradually decreases from the opening of each cable groove to the bottom of the groove; a fixing groove for matching a cable is provided at the bottom of each cable groove. Thus, cables can be conveniently placed in the cable grooves, and the cables cannot easily pass out of the cable grooves; moreover, by arranging the fixing grooves, the cables can be fixed and limited, offset movement of the cables can be reduced, and an anti-falling effect can be better realized.

Abstract: A device and method for sputtering and depositing metal on the surface of magnetic powder materials utilizes a vacuum chamber, a vacuum pump set, a magnetron sputtering target, a cathode ion source, a water-cooled anode, and a sample holding component arranged in the vacuum chamber. The sample holding component is a sample roller, an axis of the sample roller is arranged in a horizontal direction, the sample roller can rotate around the axis thereof. Two ends of the sample roller are open, and the sample roller further comprises a power device capable of driving the sample roller to rotate. The cathode ion source and the magnetron sputtering target extend inwards into the sample roller from the opening in the same end of the sample roller. The water-cooled anode extends inwards into the sample roller from the opening in the other end of the sample roller.

Abstract: Disclosed is a curcumin nanoparticle, including curcumin as core material and a wall material, where a weight ratio of the curcumin to the wall material is (5.5-7.5):100, and the wall material includes gum arabic and zein in a weight ratio of (1-5):5. The disclosure further provides a method of making the curcumin nanoparticle and a curcumin beverage containing the curcumin nanoparticle.

Abstract: A catalyst composition for converting an alcohol to olefins, the catalyst composition comprising the following components: (a) a support (e.g., particles) comprising silicon and oxygen; (b) at least one of copper and silver residing on and/or incorporated into said support; and (c) at least one lanthanide element residing on and/or incorporated into said support. The catalyst may also further include component (d), which is zinc. Also described herein is a method for converting an alcohol to one or more olefinic compounds (an olefin fraction) by contacting the alcohol with a catalyst at a temperature of at least 100° C. and up to 500° C. to result in direct conversion of the alcohol to an olefin fraction containing one or more olefinic compounds containing at least three carbon atoms; wherein ethylene and propylene are produced in a minor proportion of the olefin fraction, and butenes and higher olefins are produced in major proportion.

Abstract: A method for preparing an ammonium thiomolybdate-porous amorphous carbon composite superlubricity film is disclosed. First, a porous amorphous carbon film is prepared by an anode layer ion source assisted plasma chemical vapor deposition method and a reactive magnetron sputtering method on a substrate. The porous amorphous carbon film is then impregnated in an ammonium thiomolybdate solution, so that the ammonium thiomolybdate is adsorbed on the porous amorphous carbon film, and the impregnated porous amorphous carbon film is air dried.

Abstract: An electromagnetic separation type coating device is provided, and belongs to the technical field of vacuum coating. The device comprises a main vacuum cavity, the front side and the rear side of the main vacuum cavity are each provided with a vacuum cavity door, middle positions of the front vacuum cavity door and the rear vacuum cavity door are each provided with a set of magnetron sputtering targets, and the two sets of magnetron sputtering targets are symmetrically arranged; two sets of ion sources are symmetrically arranged on the outer walls of the left side and the right side of the main vacuum cavity, and two sets of magnetic induction coils are symmetrically arranged at two sides of each set of ion sources, respectively; a vacuum pump set is connected to the top of the main vacuum cavity, a workpiece rest is installed at the bottom in the main vacuum cavity, and is used for installing a to-be-deposited sample piece; and an auxiliary anode is further installed in the main vacuum cavity.

Abstract: A catalyst composition for converting an alcohol to olefins, the catalyst composition comprising the following components: (a) a support (e.g., particles) comprising silicon and oxygen; (b) at least one of copper and silver residing on and/or incorporated into said support; and (c) at least one lanthanide element residing on and/or incorporated into said support. The catalyst may also further include component (d), which is zinc. Also described herein is a method for converting an alcohol to one or more olefinic compounds (an olefin fraction) by contacting the alcohol with a catalyst at a temperature of at least 100° C. and up to 500° C. to result in direct conversion of the alcohol to an olefin fraction containing one or more olefinic compounds containing at least three carbon atoms; wherein ethylene and propylene are produced in a minor proportion of the olefin fraction, and butenes and higher olefins are produced in major proportion.

Abstract: The present disclosure discloses a method for realizing macroscopic super-lubrication by a matching pair of nano metal-coated steel balls and hydrogen-containing carbon films, which is based on the use of nano metal-coated steel balls and diamond-like films with a hydrogen content of 25-30% as the matching pair. Further, a tribochemical reaction occurs through the catalytic action of nano metal during the friction process to form a nano graphene transfer film with incommensurate contact at the contact interface to achieve macroscopic super-lubrication.