Abstract: The invention provides a silver-plated conductive nylon fiber and a preparation method thereof. The method includes: immersing a nylon fiber in an aqueous solution containing a polyphenolic compound at 60° C. to 70° C., adding a water-soluble oxidant into the solution, continuously reacting at 70° C. to 80° C., and obtaining a polyphenol grafted nylon fiber, where the polyphenolic compound contains a catechol group; immersing the polyphenol grafted nylon fiber into a solution containing silver ions at 15° C. to 25° C. for reaction, and raising the temperature to 70° C. to 80° C. for continuous reaction to obtain a surface-activated nylon fiber; and carrying out chemical silver plating treatment on the surface-activated nylon fiber to obtain the silver-plated conductive nylon fiber. The method does not require a heavy metal sensitizer and therefore is non-toxic and environment-friendly, and the fiber strength is maintained.

Abstract: Various embodiments of the present disclosure provide methods and apparatuses for improved belief propagation (BP) decoding. A method performed by a receiver comprises: performing BP decoding on received information; obtaining, in response to the BP decoding being unsuccessful and based on a first table comprising left-to-right messages associated with nodes of a plurality of processing elements (PEs) for the BP decoding and the received information, a second table comprising right-to-left messages associated with the nodes; searching, based on the first table and the second table, a conflict verification processing element (VPE); updating, for the conflict VPE, both signs of the right-to-left messages associated with its right-upper node and right-lower node to be the same and the sign of the right-to-left messages associated with its left-upper node to be positive; updating the second table; and performing the BP decoding based on the updated second table.

Abstract: The invention provides a silver-plated conductive nylon fiber and a preparation method thereof. The method includes: immersing a nylon fiber in an aqueous solution containing a polyphenolic compound at 60° C. to 70° C., adding a water-soluble oxidant into the solution, continuously reacting at 70° C. to 80° C., and obtaining a polyphenol grafted nylon fiber, where the polyphenolic compound contains a catechol group; immersing the polyphenol grafted nylon fiber into a solution containing silver ions at 15° C. to 25° C. for reaction, and raising the temperature to 70° C. to 80° C. for continuous reaction to obtain a surface-activated nylon fiber; and carrying out chemical silver plating treatment on the surface-activated nylon fiber to obtain the silver-plated conductive nylon fiber. The method does not require a heavy metal sensitizer and therefore is non-toxic and environment-friendly, and the fiber strength is maintained.

Abstract: Various embodiments of the present disclosure provide methods and apparatuses for improved belief propagation (BP) decoding. A method performed by a receiver comprises: obtaining based on received information and an original left-to-right table comprising left-to-right messages associated with nodes of a plurality of processing elements (PEs) for BP decoding, an original right-to-left table comprising right-to-left messages associated with the nodes, and searching for, based on the original left-to-right table and the original right-to-left table, a conflict verification processing element (VPE) in the plurality of PE. The method also comprises updating the original right-to-left table based on the conflict VPE to obtain a plurality of potential right-to-left tables, and performing the BP decoding based on the respective one of the plurality of potential right-to-left tables.

Abstract: It provides a method (300) for polar decoding a received signal into a number, N, of bits with Successive Cancellation List, SCL. The method (300) includes: at the i-th level of a binary tree for decoding the i-th bit of the N bits, where 1?i?N: when the i-th bit is an information bit, calculating (310) a path metric for each of 2*Li-1 candidate paths at the i-th level, where Li-1 is an SCL size at the (i?1)-th level and L0=1; setting (320) an SCL size at the i-th level, Li, based on Li-1 and a statistical distribution of the path metrics calculated for the 2*Li-1 candidate paths; and selecting (330) Li surviving paths from the 2*Li-1 candidate paths based on their respective path metrics.

Abstract: Various embodiments of the present disclosure provide methods and apparatuses for improved belief propagation (BP) decoding. A method performed by a receiver comprises: performing BP decoding on received information; obtaining, in response to the BP decoding being unsuccessful and based on a first table comprising left-to-right messages associated with nodes of a plurality of processing elements (PEs) for the BP decoding and the received information, a second table comprising right-to-left messages associated with the nodes; searching, based on the first table and the second table, a conflict verification processing element (VPE); updating, for the conflict VPE, both signs of the right-to-left messages associated with its right-upper node and right-lower node to be the same and the sign of the right-to-left messages associated with its left-upper node to be positive; updating the second table; and performing the BP decoding based on the updated second table.

Abstract: It provides a method (300) for polar decoding a received signal into a number, N, of bits with Successive Cancellation List, SCL. The method (300) includes: at the i-th level of a binary tree for decoding the i-th bit of the N bits, where 1?i?N: when the 1-th bit is an information bit, calculating (310) a path metric for each of 2*Li-1 candidate paths at the i-th level, where Li-1 is an SCL size at the (i?1)-th level and L0=1; setting (320) an SCL size at the i-th level, Li, based on Li-1 and a statistical distribution of the path metrics calculated for the 2*Li-1 candidate paths; and selecting (330) Li surviving paths from the 2*Li-1 candidate paths based on their respective path metrics.

Abstract: The present invention provides a treating method for a solution containing rare earth, wherein the method comprising: (1) performing a fine-grained clay adsorption on the solution containing rare earth with fine-grained clay, the conditions of the fine-grained clay adsorption allow that solution adsorbed by said fine-grained clay contains rare earth with a concentration calculated by rare earth oxides not higher than 1 mg/L; (2) performing a coarse-grained clay adsorption on the solution adsorbed by said fine-grained clay with coarse-grained clay, the conditions of coarse-grained clay adsorption allow that solution adsorbed by said coarse-grained clay contains rare earth with a concentration calculated by rare earth oxides not higher than 0.

Abstract: The present invention provides a treating method for a solution containing rare earth, wherein the method comprising: (1) performing a fine-grained clay adsorption on the solution containing rare earth with fine-grained clay, the conditions of the fine-grained clay adsorption allow that solution adsorbed by said fine-grained clay contains rare earth with a concentration calculated by rare earth oxides not higher than 1 mg/L; (2) performing a coarse-grained clay adsorption on the solution adsorbed by said fine-grained clay with coarse-grained clay, the conditions of coarse-grained clay adsorption allow that solution adsorbed by said coarse-grained clay contains rare earth with a concentration calculated by rare earth oxides not higher than 0.