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41 条记录 (耗时 0.023 秒)

    TRACE DETECTION DEVICE
    1.
    发明公开
    TRACE DETECTION DEVICE 审中-公开

    公开(公告)号：US20230236150A1

    公开(公告)日：2023-07-27

    申请号：US17999201

    申请日：2021-05-14

    申请人： Nuctech Company Limited ,  Tsinghua University

    发明人： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Jianmin LI ,  Weiping ZHU ,  Qiufeng MA ,  Biao CAO ,  Lili YAN ,  Ge LI ,  Nei YANG

    IPC分类号： G01N27/622 ,  G01N30/20

    CPC分类号： G01N27/622 ,  G01N30/20 ,  G01N2030/025 ,  G01N2030/201

    摘要： A trace detection device including: an ion mobility tube ; a sampling gas path module ; a sample injection gas path module configured to introduce a sample carrier gas containing a sample collected by the sampling gas path module toward the ion mobility tube; and a gas chromatography apparatus capable of pre-separating the sample carrier gas, so as to form a pre-separated sample carrier gas; wherein the sample injection gas path module is further configured to be capable of switching between a first mode and a second mode, in the first mode, the sample injection gas path module introduces the sample carrier gas into the ion mobility tube; and in the second mode, the sample injection gas path module introduces the sample carrier gas into the gas chromatography apparatus to pre-separate the sample carrier gas, and the pre-separated sample carrier gas is introduced into the ion mobility tube.

    IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE AND STORAGE MEDIUM
    3.
    发明申请
    IMAGE PROCESSING METHOD, IMAGE PROCESSING DEVICE AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20190206095A1

    公开(公告)日：2019-07-04

    申请号：US16235882

    申请日：2018-12-28

    申请人： Tsinghua University ,  NUCTECH COMPANY LIMITED

    发明人： Yuxiang XING ,  Kaichao LIANG ,  Le SHEN ,  Li ZHANG ,  Hongkai YANG ,  Kejun KANG ,  Zhiqiang CHEN ,  Jianmin LI ,  Yinong LIU

    IPC分类号： G06T11/00 ,  G06N3/08

    CPC分类号： G06T11/003

    摘要： An image processing method, comprising: acquiring, by a CT scanning system, projection data of an object; and processing, by using a convolutional neural network, the projection data, to acquire an estimated image of the object. The convolutional neural network comprises: a projection domain network for processing input projection data to obtain estimated projection data; an analytical reconstruction network layer for performing analytical reconstruction to obtain a reconstructed image; an image domain network for processing the reconstructed image to obtain an estimated image, a projection layer for performing a projection operation by using a system projection matrix of the CT scanning system, to obtain a projection result of the estimated image; and a statistical model layer for determining consistency among the input projection data, the estimated projection data, and the projection result of the estimated image based on a statistical model.

    FORK-ARM LIFT TRACTOR
    5.
    发明申请
    FORK-ARM LIFT TRACTOR 审中-公开

    公开(公告)号：US20190193691A1

    公开(公告)日：2019-06-27

    申请号：US16233398

    申请日：2018-12-27

    申请人： TSINGHUA UNIVERSITY ,  Nuctech Company Limited

    发明人： Yuan HE ,  Jianmin LI ,  Hongqi LI ,  Yulan LI ,  Qiangqiang WANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Li ZHANG

    IPC分类号： B60S13/00

    CPC分类号： B60S13/00 ,  B60S5/00 ,  B62D49/02 ,  B62D49/0692

    摘要： A fork-arm lift tractor includes a vehicle body, a supporting plate disposed above the vehicle body, a lifting device for driving the supporting plate to be lifted, a front and rear fork-arm assemblies, a front and rear fork-arm drive assemblies. The front fork-arm assembly includes two front fork-arms rotatably disposed at the supporting plate. The rear fork-arm assembly includes two rear fork-arms rotatably disposed at the supporting plate, and the front and rear fork-arms may be deployed or retracted from both sides of the supporting plate. The front fork-arm driving assembly includes a front transmission part, and a front power device disposed at the supporting plate and may drive the front transmission part to move horizontally linearly so as to rotate the two front fork-arms. The rear fork-arm driving assembly has almost the same structure of the front fork-arm driving assembly and is used to rotate the two rear fork-arms.

    QUICK VEHICLE CHECK SYSTEM AND METHOD ADOPTING MULTI-DOSE REGIONAL SCANNING
    6.
    发明申请
    QUICK VEHICLE CHECK SYSTEM AND METHOD ADOPTING MULTI-DOSE REGIONAL SCANNING 审中-公开
    快速车辆检查系统和采用多剂量区域扫描的方法

    公开(公告)号：US20160178791A1

    公开(公告)日：2016-06-23

    申请号：US14972115

    申请日：2015-12-17

    申请人： TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

    发明人： Ying LI ,  Jianmin LI ,  Tao SONG

    IPC分类号： G01V5/00

    摘要： A quick vehicle check system comprises a radiation source which produces a first X ray with a first dose and a second X ray with a second dose, wherein the first dose is smaller than the second dose, and the first X ray is used for checking a first part of a checked vehicle and the second X ray is used for checking a second part of the checked vehicle; a first sensor for detecting a set position of the checked vehicle; a second sensor for detecting a passing distance of the checked vehicle; and a control unit coupled with the first sensor and the second sensor, which receives the set position of the checked vehicle from the first sensor and receives the passing distance of the checked vehicle from the second sensor.

    摘要翻译： 快速车辆检查系统包括辐射源，其产生具有第一剂量的第一X射线和具有第二剂量的第二X射线，其中第一剂量小于第二剂量，并且第一X射线用于检查 检查车辆的第一部分，并且第二X射线用于检查检查车辆的第二部分; 用于检测被检查车辆的设定位置的第一传感器; 用于检测被检查车辆的通过距离的第二传感器; 以及与第一传感器和第二传感器耦合的控制单元，其接收来自第一传感器的检查车辆的设置位置，并接收检查车辆与第二传感器的通过距离。

    RADIATION PROTECTION DEVICE
    7.
    发明申请
    RADIATION PROTECTION DEVICE 有权
    辐射防护装置

    公开(公告)号：US20150048263A1

    公开(公告)日：2015-02-19

    申请号：US14459408

    申请日：2014-08-14

    申请人： Tsinghua University ,  Nuctech Company Limited

    发明人： Kejun KANG ,  Yuanjing LI ,  Ying LI ,  Jianmin LI ,  Junli LI ,  Yanli DENG

    IPC分类号： G21F3/00 ,  G21F1/04 ,  G21F1/02

    CPC分类号： G21F3/00 ,  G01V5/0016 ,  G21F1/023 ,  G21F1/042

    摘要： A radiation protection device is disclosed in the embodiment of the present invention. The radiation protection device is used for a system which is configured to perform safety inspection of a cargo or a vehicle by a ray. The radiation protection device comprising: at least one container, and a radiation protection part disposed within the container. The radiation protection material may comprise at least one of concrete, sandstone, and water, or the radiation protection part may comprise a steel-lead protection wall or a concrete protection wall. With the radiation protection device according to the embodiment of the present invention, after the container is transported to the site, it can be directly put in place to be capable of shielding rays without needing operation or with only simple operation. The amount of on-site work, construction time, and construction cost are low.

    摘要翻译： 在本发明的实施例中公开了一种辐射防护装置。 辐射防护装置用于被配置为通过射线执行货物或车辆的安全检查的系统。 辐射防护装置包括：至少一个容器和设置在容器内的辐射防护部分。 辐射防护材料可以包括混凝土，砂岩和水中的至少一种，或者辐射防护部分可以包括钢 - 铅保护壁或混凝土保护壁。 根据本发明的实施方式的放射线防护装置，在将容器运送到现场后，可以将其直接放置在能够屏蔽射线的地方，而无需操作或操作简单。 现场工作量，施工时间和施工成本低。