公开(公告)号：US20230409671A1

公开(公告)日：2023-12-21

申请号：US18204973

申请日：2023-06-02

Applicant: SICHUAN UNIVERSITY

Inventor： Wu ZHAO ,  Xin GUO ,  Miao YU ,  Kai ZHANG ,  Wei JIANG ,  Chong JIANG ,  Bing LAI ,  Yiwei JIANG ,  Jun LI ,  Bo WU ,  Xingyu CHEN

IPC: G06F18/2135 ,  G06F17/16

CPC classification number: G06F18/2135 ,  G06F17/16

Abstract: A method for extracting a kansei adjective of a product based on principal component analysis and explanation (PCA-E) includes constructing a product kansei evaluation vector matrix through original kansei adjectives; performing dimensionality reduction through PCA; and determining, based on principal component load factors, kansei adjectives representing principal components. In this way, the kansei adjectives extracted are explanatory to help users understand the selected kansei adjectives and make accurate evaluation.

公开(公告)号：US20240420873A1

公开(公告)日：2024-12-19

申请号：US18721567

申请日：2023-12-21

Applicant: SICHUAN UNIVERSITY

Inventor： Ying LIU ,  Renquan WANG ,  Jun LI ,  Hongxing CHEN ,  Yao XIAO

IPC: H01F1/057 ,  B22F1/00 ,  B22F3/14 ,  B22F3/16 ,  B22F3/20 ,  B22F9/00 ,  B22F9/04 ,  C22C24/00 ,  C22C38/00 ,  C22C38/10

Abstract: Disclosed are an anisotropic nanocrystalline rare earth permanent magnet and a preparation method thereof. The rare earth permanent magnet includes an RE—Fe—B matrix phase and a second phase, wherein the RE—Fe—B matrix phase includes main phase RE2Fe14B flaky nanocrystallines regularly arranged and an RE-rich phase around main phase grains, the main phase RE2Fe14B flaky nanocrystallines having an average grain size in a length direction of 70 nm to 800 nm and an average grain size in a thickness direction of 30 nm to 200 nm; and the second phase includes at least one selected from the group consisting of an M-Cu phase and an M—Cu—O phase, M being at least one selected from the group consisting of Ca and Mg.

公开(公告)号：US20240331937A1

公开(公告)日：2024-10-03

申请号：US18713575

申请日：2023-11-24

Applicant: SICHUAN UNIVERSITY

Inventor： Ying LIU ,  Renquan WANG ,  Jun LI ,  Hongxing CHEN ,  Yao XIAO

IPC: H01F41/02 ,  C22C38/00 ,  H01F1/057

CPC classification number: H01F41/0266 ,  C22C38/005 ,  H01F1/0576

Abstract: Disclosed are a method for preparing an anisotropic flake nanocrystalline rare earth permanent magnet material and a rare earth permanent magnet material. In the disclosure, the method includes: step 1, preparation of a precursor flake nanocrystal magnetic powder, where a number of grains of flake nanocrystals inside the precursor flake nanocrystalline magnetic powder accounts for not less than 85% of a total number of grains inside the precursor flake nanocrystalline magnetic powder; step 2, orientation treatment by hot deformation: subjecting the precursor flake nanocrystalline magnetic powder or a green body prepared from the precursor flake nanocrystalline magnetic powder to the hot deformation, such that flake nanocrystals are regularly arranged; and step 3, post-processing for optimizing orientation.

公开(公告)号：US20240005130A1

公开(公告)日：2024-01-04

申请号：US18120434

申请日：2023-03-13

Applicant: SICHUAN UNIVERSITY

Inventor： Wu ZHAO ,  Miao YU ,  Xin GUO ,  Kai ZHANG ,  Qian ZHAO ,  Hui YU ,  Jun LI ,  Bing LAI ,  Chong JIANG ,  Yiwei JIANG ,  Bo WU ,  Xingyu CHEN

IPC: G06N3/0455 ,  G06F17/16 ,  G06N3/08

CPC classification number: G06N3/0455 ,  G06N3/08 ,  G06F17/16

Abstract: A method for constructing a design concept generation network (DCGN) and a method for automatically generating a conceptual scheme are provided. A DCGN includes a Transformer encoder, a Transformer decoder, an importance constraint matrix generation module, an importance constraint embedding layer, a cross-attention (CA) layer, and an optimization module. A word importance constraint is ingeniously introduced based on an attention mechanism of a Transformer to record input word constraint information contained in a generated text sequence. This can effectively ensure the reliability and effectiveness of a generated conceptual scheme and is conducive to capturing potential semantic importance information and implementing semantic knowledge reasoning.