公开(公告)号：US11989655B2

公开(公告)日：2024-05-21

申请号：US17079677

申请日：2020-10-26

申请人： JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Xiaoyan Luo ,  Hui Yu ,  Tao Deng ,  Junxi Liu ,  Xuetao Zhang

IPC分类号： G06N3/084 ,  G06N3/04 ,  G06N3/082 ,  G06N3/126 ,  G06N5/022 ,  G10L25/03 ,  G10L25/30 ,  G10L25/51

CPC分类号： G06N3/084 ,  G06N3/04 ,  G06N3/082 ,  G06N3/126 ,  G06N5/022 ,  G10L25/03 ,  G10L25/30 ,  G10L25/51

摘要： Embodiments of the present application provide a prediction method, device and system for rock mass instability stages, and belong to the technical field of rock mass instability prediction. The method includes the steps: acquiring acoustic emission signals of rock mass; extracting feature parameters from the acquired acoustic emission signals; and predicting instability stages of the rock mass in accordance with the feature parameters and a preset back propagation (BP) neural network model, wherein the preset BP neural network model is obtained by training a BP neural network and a genetic algorithm by virtue of the feature parameters of the acoustic emission signals at different rock mass instability stages. According to the technical solution in the present application, the problem in the training process of the BP neural network model that model parameter optimization may be easily trapped in a locally optimal solution is effectively solved.

公开(公告)号：US11540848B2

公开(公告)日：2023-01-03

申请号：US16490819

申请日：2018-08-24

申请人： JIANGXI UNIVERSITY OF SCIENCE AND TECHNOLOGY

发明人： Gaipin Cai ,  Xiaoyan Luo ,  Pengfei Zhan ,  Tiedong Cheng ,  Haohua Chen ,  Huiming Chen

IPC分类号： A61B17/22 ,  A61B17/221

摘要： An ultrasonic thrombus removing system includes a front sheath tube (1) and a rear sheath tube (5) that are independent and that are inserted into a blood vessel (2); a rear end outer portion of the front sheath tube (1) is mounted with a front blocking balloon (105), and a front end outer portion of the rear sheath tube (5) is mounted with a rear blocking balloon (504); a breaking cavity (4) being formed between the two blocking balloons; the front blocking balloon (105) and the rear blocking balloon (504) expand or contract in the blood vessel (2) by means of the squeezing or loosening of an external force so as to block or open front and rear sides of the thrombus (3); an inner portion of the rear sheath tube (5) is provided with a core tube (502) that co-axially penetrates therethrough, a front end of the core tube (502).