公开(公告)号：US20210026027A1

公开(公告)日：2021-01-28

申请号：US16939082

申请日：2020-07-27

Applicant: Southwest Jiaotong University

Inventor： Yingbin ZHANG ,  Jing LIU ,  Haiying FU ,  Qingdong WANG ,  Chenlin XIANG ,  Dejian LI ,  Jiangtao WEI ,  Yin CHENG ,  Zhiwang CHANG ,  Pengcheng YU

IPC: G01V1/28 ,  G01V1/00 ,  G06T17/05 ,  G06F16/29

Abstract: A mechanical-model based earthquake-induced landslide hazard assessment method in earthquake-prone mountainous area includes: obtaining the cohesion and internal friction angle through a geological map of the study area and a geotechnical physical parameter; obtaining simulated ground motions by combining a pulse-like ground motion effect model and a pulse-like ground motion response model; calculating slope permanent displacement according to the simulated ground motions, the cohesion, the internal friction angle and other parameters; obtaining a statistical relationship between the permanent displacement and a landslide probability according to permanent displacement data derived from historical earthquake-induced landslides and historical strong earthquake records; and predicting earthquake-induced landslide probability according to the slope permanent displacement and the statistical relationship between the permanent displacement and the landslide probability, and quantitatively evaluating earthquake-induced landslide hazard through the earthquake-induced landslide probability.

公开(公告)号：US10739377B2

公开(公告)日：2020-08-11

申请号：US16347582

申请日：2019-01-11

Applicant: Southwest Jiaotong University ,  Tsinghua University

Inventor： Liang Jiang ,  Linmao Qian ,  Jianbin Luo ,  Bin Lin ,  Yushan Chen

IPC: G01Q60/02 ,  G01Q70/02

Abstract: A numerically controlled rotary probe switching device based on an environment-controllable atomic force microscope (AFM) includes a cavity upper cover and a probe switching structure. The cavity upper cover is provided with an irregular rectangular boss, an inner groove, a rectangular optical window structure and a sealing flange structure. The irregular rectangular boss is provided with the rectangular optical window structure; a front end of the boss is provided with the sealing flange structure; and a lower portion of the boss is provided with an inner groove for accommodating the probe switching structure and a transition groove for matching with a linear movement of a sample carrier and a rotary switching of probes. The probe switching structure is configured inside the inner groove, and the probe switching structure is provided with at least one probe assembly.

公开(公告)号：US20200226413A1

公开(公告)日：2020-07-16

申请号：US16639046

申请日：2018-08-24

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Yuanxin YE

IPC: G06K9/62 ,  G06K9/46

Abstract: A multimodal remote sensing image matching method and system integrate different local feature descriptors for automatic matching of multimodal remote sensing images. First, a local feature descriptor, such as the Histogram of Oriented Gradient (HOG), the local self-similarity (LSS), or the Speeded-Up Robust Feature (SURF), is extracted for each pixel of an image to form a pixel-wise feature representation map. Then, the three-dimensional Fourier transform (namely 3D FFT) is used to establish a fast matching similarity metric in a frequency domain based on the feature representation map, followed by a template matching scheme to achieve control points (CP) between images. In addition, the novel pixel-wise feature representation technique named channel features of orientated gradients (CFOG), which outperforms the pixel-wise feature representation methods based on the traditional local descriptors (e.g., HOG, LSS and SURF) in both matching performance and computational efficiency.

公开(公告)号：US20200217200A1

公开(公告)日：2020-07-09

申请号：US16726831

申请日：2019-12-25

Applicant: Southwest Jiaotong University

Inventor： Keguo Sun ,  Weiping Xu ,  Zhifei Xiao ,  Yuchao Zheng ,  Mingzhao Yu ,  Jinhang Qin

IPC: E21D11/00

Abstract: The frost-resistant assembled initial support structure of the tunnel for supporting a surrounding rock includes a bearing layer, an elastic compressible structure and an inflatable airbag. A gap space is formed between the bearing layer and the surrounding rock, and the inflatable airbag and the elastic compressible structure are provided in the gap space; and the inflatable airbag after being inflated and the elastic compressible structure jointly fill up the gap space. A construction method includes providing the bearing layer in the tunnel, and forming the gap space between the bearing layer and the surrounding rock; providing the inflatable airbag and the elastic compressible structure in the gap space; and inflating the inflatable airbag and filling up the gap space with the inflatable airbag and the elastic compressible structure.

公开(公告)号：US20170246353A1

公开(公告)日：2017-08-31

申请号：US15503172

申请日：2015-08-12

Applicant: Chengdu Southwest Jiaotong University Science and Technology Garden Management Co.,Ltd. ,  Chengdu Jiaoda Medical Science And Technology Company Limited

Inventor： Zhilu YANG ,  Nan HUANG ,  Jin WANG ,  Yajun WENG

IPC: A61L31/10 ,  A61L31/16 ,  C09D5/00 ,  C09D7/12 ,  A61L29/16 ,  A61L27/34 ,  A61L27/50 ,  A61L27/54 ,  A61L29/08 ,  C09D177/04 ,  C09D177/12

CPC classification number: A61L31/10 ,  A61F2/06 ,  A61K33/00 ,  A61L27/34 ,  A61L27/507 ,  A61L27/54 ,  A61L29/085 ,  A61L29/16 ,  A61L31/16 ,  A61L2300/114 ,  A61L2300/606 ,  A61L2420/02 ,  A61M2025/0046 ,  A61M2025/09133 ,  C08K3/011 ,  C08K3/16 ,  C08K5/13 ,  C09D5/00 ,  C09D7/40 ,  C09D7/61 ,  C09D177/04 ,  C09D177/12

Abstract: Disclosed is a method for preparing a nitric oxide-generating adherent coating, comprising: preparing a buffer solution containing polyphenol compounds, organic selenium or sulfur compounds and soluble copper salts; then contacting a base material with the solution, and washing and drying to obtain a target product. The nitric oxide-generating material prepared by the method can be used for any medical device, such as an intravascular stent, or materials and any complex-shaped base material, and has the capability of scavenging free radicals and catalyzing RSNO to produce nitrogen monoxide, and also has a response function of reduced glutathione (GSH), an antimicrobial function and all the physiological functions possessed by nitrogen monoxide.

公开(公告)号：US20250114222A1

公开(公告)日：2025-04-10

申请号：US18829403

申请日：2024-09-10

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： GUOJIANG WAN ,  FEI GAO ,  YUKUN ZHOU ,  JINJING LIU ,  WENJIE TAO ,  ZHAOZHAO ZHANG

IPC: A61F2/90 ,  A61F2/82 ,  A61L31/02 ,  A61L31/14 ,  B21F45/00

Abstract: The present invention discloses a biodegradable molybdenum-based flow diverter and a preparation method thereof, wherein the preparation method comprises the following steps: step 1. pretreatment of a molybdenum wire: cleaning and drying the molybdenum wire, and then weaving to obtain the molybdenum-based flow diverter; step 2. performing heat treatment on the molybdenum-based flow diverter in the step 1; and step 3. performing surface chemical polishing treatment on the molybdenum-based flow diverter subjected to the heat treatment in the step 2. The present invention solves the technical problem that the flow diverter in the prior art cannot be degraded in vivo and therefore easily causing various complications. It provides also improved mechanical property, MRI magnetic resonance imaging (MRI) compatibility as well as biocompatibility, and particularly has the function of promoting rapid endothelialization, compared with other degradable materials.

公开(公告)号：US12267027B2

公开(公告)日：2025-04-01

申请号：US17555895

申请日：2021-12-20

Applicant: Southwest Jiaotong University

Inventor： Jun Zheng ,  Yanxing Cheng ,  Long Kou ,  Huan Huang ,  Zhihao Ke ,  Zigang Deng

IPC: H02N15/00 ,  B60L13/06 ,  B60L13/10 ,  B61B13/08

Abstract: This application relates to simulation equipment, and more particularly to an apparatus and method for simulating a line running state of magnetic levitation. The apparatus includes a levitation-guidance mechanism, a moving mechanism and a magnetic guideway fluctuation simulated mechanism. The levitation-guidance mechanism is configured to detect a force on a single Dewar of a maglev train to be simulated. The moving mechanism is configured to move the levitation-guidance mechanism. The magnetic guideway fluctuation simulated mechanism is arranged below the levitation-guidance mechanism, and is configured to apply a variable force to the levitation-guidance mechanism. The variable force is configured to simulate a constantly-variable electromagnetic force applied to the levitation-guidance mechanism by a real track.

公开(公告)号：US20250102701A1

公开(公告)日：2025-03-27

申请号：US18913615

申请日：2024-10-11

Applicant: China Railway Eleventh Bureau Group Co., Ltd ,  Wuhan University of Technology ,  China Railway Eleventh Bureau Group Fourth Engineering Co., Ltd. ,  Wujiu Railway Passenger Dedicated Line Hubei Co., Ltd ,  Southwest Jiaotong University ,  China Railway Seventh Group Co., Ltd. ,  Wuhan Institute of Geotechnical Mechanics, Chinese Academy of Sciences ,  China Railway Southwest Scientific Research Institute Co., Ltd

Inventor： Jun GAO ,  Zhongyi ZHANG ,  Xiao LIN ,  Xiaowei ZUO ,  Kaiwen LIU ,  Ming ZHANG ,  Bin ZHOU ,  Feng WANG ,  Yuxin GAO ,  Huiling XUE ,  Ling WANG ,  Zhengyi WANG ,  Xiaokai WEN ,  Yongtai WANG ,  Dan XU ,  Ke CHEN ,  Tenghui XU ,  Zhiguo LIU ,  Yongguo QI ,  Geng CHEN ,  Songzhen LI ,  Junlei ZHOU ,  Juntao KANG ,  Chunfeng MENG ,  Dongsheng XU ,  Linyue GAO

IPC: G01V20/00 ,  E21D9/00 ,  F42D3/04 ,  G01J5/00 ,  G06F30/23

Abstract: Disclosed are a method and a device for identifying full-section excavation parameters of large-section tunnel with broken surrounding rock, which is capable of solving the problem of inaccurate arrangement of blasting hole points in tunnel excavation engineering, including following steps: establishing a three-dimensional finite element model based on a blasting section design of a tunnel; performing a simulation with the three-dimensional finite element model based on blasting design parameters to obtain blasting quality parameters; selecting a group closest to a preset quality parameter from multiple groups of the blasting design parameters as target blasting design parameters, wherein the preset quality parameter is an acceptance grade standard of the tunnel; obtaining first thermal imaging information of a first hot spot of a surface to be blasted; calibrating actual hole spacing parameters based on the first thermal imaging information and the target blasting design parameters.

公开(公告)号：US12128936B1

公开(公告)日：2024-10-29

申请号：US18777170

申请日：2024-07-18

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Jun Zheng ,  Mingming Li ,  Sanchun Nie ,  Hao Lu

IPC: G01R29/08 ,  B61B13/08 ,  B61K9/08 ,  G01R1/16 ,  G01R33/038

CPC classification number: B61K9/08 ,  B61B13/08 ,  G01R1/16 ,  G01R29/0807 ,  G01R33/038

Abstract: A fault detection device for a superconducting electrodynamic maglev track includes a frame system and a detection system. The frame system is provided between two sidewall discrete figure-8-shaped coil tracks, and is provided with a signal processing device. The detection system is provided on each side of the frame system, and includes a lifting device and a clamping device. The lifting device is configured to adjust a vertical height of the clamping device. The clamping device is provided at an outer side of the lifting device, and is provided with a first connection portion and a second connection portion, which are respectively connected to a permanent magnet array and a receiving coil. The second connection portion is provided at periphery of the first connection portion. The receiving coil is electrically connected to the signal processing device. A fault detection method is further provided.

公开(公告)号：US20240355599A1

公开(公告)日：2024-10-24

申请号：US18759759

申请日：2024-06-28

Applicant: Southwest Jiaotong University

Inventor： Yuhong XU ,  Danni WU ,  Yucai LI ,  Haifeng LIU ,  Jun CHENG ,  Junfeng SHEN ,  Hai LIU ,  Xianqu WANG ,  Jie HUANG ,  Xin ZHANG ,  Jun HU ,  Wei LI

IPC: H01J37/32 ,  G21B1/05

CPC classification number: H01J37/32935 ,  G21B1/05 ,  H01J37/32926

Abstract: A diagnostic method and system for measuring potential and electric field of plasma are provided. According to operation parameters of a magnetic confinement fusion device and relevant parameter data of a plurality of candidate particle elements, signal-noise ratios are calculated. to select a neutral beam particle element. Beam trajectories varying in incident velocity, incident angle and sampling area are obtained by iterative calculation, and a preset parameter which enables the beam trajectories to pass through an entrance slit of an analyzer is obtained. A neutral beam that meets the preset parameter is injected into the plasma. An energy of the primary beam generated by collision ionization in a sampling area is measured, and potential of the sampling area is obtained according to law of conservation of energy. Sampling areas are detected to obtain potential spatial distribution of the plasma and a radial electric field, and the diagnostic is finished.