公开(公告)号：US20190193017A1

公开(公告)日：2019-06-27

申请号：US16232050

申请日：2018-12-26

Applicant: NUCTECH COMPANY LIMITED ,  TSINGHUA UNIVERSITY

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Lili YAN ,  Ge LI ,  Qiufeng MA ,  Nan BAI

IPC: B01D53/04 ,  B01D53/02 ,  G01N27/62 ,  G01N30/26

CPC classification number: B01D53/0446 ,  B01D53/025 ,  B01D53/0438 ,  B01D2257/80 ,  B01D2259/40003 ,  B01D2259/40086 ,  B01D2259/40096 ,  G01N27/622 ,  G01N30/26 ,  G01N2030/025

Abstract: The present disclosure relates to a gas purification apparatus and a trace substance detection device. The gas purification apparatus includes a first purification component, a second purification component and a switching component, wherein the switching component can be switched between a first state and a second state, the first purification component and a component to be purified form a gas purification loop in the first state, and the second purification component can provide a regeneration gas for the first purification component in the second state, so that water vapor and impurities in the first purification component are discharged to outside. In the gas purification apparatus, the filtered air is used as the regeneration gas to prevent secondary pollution in a recycling process of the purificant; furthermore, by means of the state switching function of the switching component, the mutual interference between the two working states of purification and regeneration can be prevented, and all the above advantages can improve the reliability of the recycling of the purificant, thereby optimizing the performance and the service life of the gas purification apparatus.

公开(公告)号：US20160170073A1

公开(公告)日：2016-06-16

申请号：US14965122

申请日：2015-12-10

Applicant: Nuctech Company Limited

Inventor： Jianmin LI ,  Yulan LI ,  Jingyu GU ,  Yuanjing LI ,  Quanwei SONG ,  Weizhen WANG ,  Dongyu WANG ,  Zhiqiang CHEN ,  Chaunxiang TANG ,  Yinong LIU ,  Junli LI ,  Tao XUE ,  Hui Gong ,  Xuewu WANG

IPC: G01V5/00 ,  B60R11/00

CPC classification number: G01V5/0016 ,  B60R11/00 ,  B60R2011/004

Abstract: A vehicle mounted mobile container or vehicle inspection system, including: a radiation source, a movable vehicle for carrying the inspection system, and a detector arm rack which has a horizontal arm and a vertical arm, a first end of the horizontal arm is connected to the vehicle and a second end thereof is connected to an end of the vertical arm. The horizontal arm and the vertical arm are connected by a pivotal connecting device such that the vertical arm may pivot in a vertical plane, and the horizontal arm and the vertical arm may be retracted in a same horizontal plane. The novel arm rack construction may reduce the space occupied by it on top of the scanning vehicle after the arm rack is stowed so as to reduce the eight of the scanning vehicle under running condition.

Abstract translation: 一种车载移动容器或车辆检查系统，包括：辐射源，用于携带检查系统的移动车辆和具有水平臂和垂直臂的检测器臂架，水平臂的第一端连接到 车辆及其第二端连接到垂直臂的一端。 水平臂和垂直臂通过枢转连接装置连接，使得垂直臂可以在垂直平面中枢转，并且水平臂和垂直臂可以在相同的水平面中缩回。 新型臂架结构可以在搁架臂架之后减小扫描车辆顶部占据的空间，以便在运行状态下减少扫描车辆的八个。

公开(公告)号：US20210215582A1

公开(公告)日：2021-07-15

申请号：US16314063

申请日：2018-12-10

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Lili YAN ,  Ge LI ,  Qiufeng MA

IPC: G01N1/34 ,  G01N1/44 ,  G01N27/622 ,  G01N1/22

Abstract: Embodiments of the present disclosure provide a gas purifying device and an ion migration spectrometer. The gas purifying device includes a first purificant vessel, a second purificant vessel and a valve communicated between the first purificant vessel and the second purificant vessel. The valve is configured to allow a gas flows from the second purificant vessel to the first purificant vessel in a first state and to permit the gas to flow from the first purificant vessel to the second purificant vessel in a second state.

公开(公告)号：US20190206095A1

公开(公告)日：2019-07-04

申请号：US16235882

申请日：2018-12-28

Applicant: Tsinghua University ,  NUCTECH COMPANY LIMITED

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

IPC: G06T11/00 ,  G06N3/08

CPC classification number: G06T11/003

Abstract: 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.

公开(公告)号：US20140185773A1

公开(公告)日：2014-07-03

申请号：US14136514

申请日：2013-12-20

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Zhiqiang Chen ,  Yuanjing LI ,  Ziran ZHAO ,  Wanlong WU ,  Le TANG ,  Yinong LIU ,  Yingkang JIN ,  Wenguo LIU ,  Shuo CAO ,  Zhimin ZHENG ,  Guangwei DING ,  Ming RUAN ,  Xiuwei CHEN

IPC: G01N23/203

CPC classification number: G01N23/203 ,  G01V5/0025

Abstract: A human body security inspection system including a plurality of ray emitting-detecting modules, which are configured to emit X-rays to the object to be inspected and to receive X-rays scattered from the object to be inspected, wherein the ray emitting-detecting modules form an enclosed region with respect to the object to be inspected and security inspection is implemented on the object in the enclosed region.

Abstract translation: 一种人体安全检查系统，包括多个射线发射检测模块，其被配置为向被检查物体发射X射线并且接收从被检查物体散射的X射线，其中，所述射线发射检测 模块相对于待检查对象形成封闭区域，并且在封闭区域中的对象上实施安全检查。

公开(公告)号：US20210404988A1

公开(公告)日：2021-12-30

申请号：US16626767

申请日：2019-06-12

Applicant: NUCTECH COMPANY LIMITED

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Jianmin LI ,  Yinong LIU ,  Yaohong LIU ,  Lili YAN ,  Biao CAO ,  Weiping ZHU ,  Ge LI ,  Qiufeng MA ,  Qi MAO ,  Nan BAI

IPC: G01N27/622 ,  G01N1/22

Abstract: There are provided an ion mobility spectrometer and a sniffer. The ion mobility spectrometer includes: an ion migration tube; a sampling gas path having a sampling device configured to temporarily store a sample gas collected by a sampling head in a sampling pipe; a sample introduction gas path having two ends in communication with the gas inlet and outlet of the ion migration tube respectively, and configured to introduce a carrier gas within the ion migration tube into the sampling pipe and to carry a sample gas temporarily stored in the sampling pipe into the ion migration tube; and a valve assembly configured to only allow gas to flow from the sampling device to the sampling pipe in a sampling state, and to only allow gas to flow from the ion migration tube through the sampling pipe back to the ion migration tube in a sample introduction state.

公开(公告)号：US20180178415A1

公开(公告)日：2018-06-28

申请号：US15815819

申请日：2017-11-17

Applicant: Nuctech Company Limited

Inventor： Yanchun WANG ,  Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Nan BAI

IPC: B29C33/00 ,  G01T1/20 ,  C04B35/50

CPC classification number: B29C33/0033 ,  B22F3/14 ,  B28B3/025 ,  B30B11/002 ,  B30B15/026 ,  C04B35/50 ,  C04B35/5156 ,  C04B35/547 ,  C04B35/645 ,  C04B2111/807 ,  C04B2235/3224 ,  C04B2235/3895 ,  C04B2235/94 ,  G01T1/20

Abstract: A mold and a method of manufacturing GOS ceramic scintillator by using the mold are provided. The mold comprises: a female outer sleeve having a cavity disposed inside; a plurality of female blocks disposed inside the cavity, the plurality of female blocks being put together to form a composite structure having a vertical through hole; and a male upper pressing head and a male lower pressing head, wherein each of the male upper pressing head and the male lower pressing head has a shape consistent with that of the vertical through hole. The disclosure may reduce defects of the related art in hot-pressing-sintering such as a mold has a short retirement period and a high material waste, significantly reduce the cost for production of the GOS ceramic scintillator, and significantly improve a process economy.

公开(公告)号：US20170068003A1

公开(公告)日：2017-03-09

申请号：US15258209

申请日：2016-09-07

Applicant: Nuctech Company Limited ,  TSINGHUA UNIVERSITY

Inventor： Qingjun ZHANG ,  Yuanjing LI ,  Zhiqiang CHEN ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Xiang ZOU ,  Huishao HE ,  Shuwei LI ,  Jianping CHANG ,  Wenjian ZHANG

IPC: G01T7/00 ,  G01J1/02

CPC classification number: G01T7/00 ,  G01J1/0271 ,  G01J2001/0276

Abstract: The invention discloses a safety inspection detector and a goods safety inspection system. The safety inspection detector at least comprises a circuit board, a first housing, a second housing, a detection module and a connecting interface. The detection module and the connecting interface are mounted on the circuit board. The first housing is pressed and connected to a first surface of the circuit board, and the second housing is pressed and connected to a second surface of the circuit board. The first housing and the second housing can hermetically wrap the detection module and electronic devices on the circuit board, but bypass the connecting interface to realize leading-out and connection with related interconnected cables by utilizing the connecting interface. The housings can be used for sealing and protecting sensitive electronic devices in the detector, thus being moisture proof and preventing interference.

Abstract translation: 本发明公开了一种安全检查检测器和货物安全检查系统。 安全检查检测器至少包括电路板，第一壳体，第二壳体，检测模块和连接接口。 检测模块和连接接口安装在电路板上。 第一壳体被按压并连接到电路板的第一表面，并且第二壳体被按压并连接到电路板的第二表面。 第一壳体和第二壳体可以将检测模块和电子设备封装在电路板上，但绕过连接接口，通过利用连接接口实现与相关互连电缆的导出和连接。 这些外壳可用于密封和保护检测器中敏感的电子设备，从而防潮并防止干扰。

公开(公告)号：US20160294070A1

公开(公告)日：2016-10-06

申请号：US14246261

申请日：2014-04-07

Applicant: Nuctech Company Limited ,  Tsinghua University

Inventor： Ziran ZHAO ,  Zhiqiang CHEN ,  Yuanjing LI ,  Wanlong WU ,  Yinong LIU ,  Jieqing YANG ,  Wenguo LIU ,  Bin SANG ,  Lei ZHENG

IPC: H01Q21/08 ,  H01Q1/50 ,  H01Q5/378 ,  H01Q21/00 ,  H01Q9/04

CPC classification number: H01Q21/08 ,  G03H5/00 ,  H01Q1/50 ,  H01Q1/525 ,  H01Q5/378 ,  H01Q9/045 ,  H01Q9/0457 ,  H01Q13/02 ,  H01Q21/0081 ,  H01Q21/065

Abstract: There is provided a wideband patch antenna and an antenna array. The antenna includes a dielectric substrate of a rectangle shape, a radiation patch formed on a top surface of the dielectric substrate, a coupling patch formed on the top surface of the dielectric substrate and extending from a side of the dielectric substrate to a position from the radiation patch by a distance, a metal support arranged on the lower surface of the dielectric substrate and extending from the edge of the lower surface of the dielectric substrate downward to the ground, a layer of air having a predetermined thickness being formed between the lower surface of the dielectric substrate and the ground. According to the embodiments, it is possible to improve the directivity of the wideband microstrip antenna while maintaining its small size.

Abstract translation: 提供了宽带贴片天线和天线阵列。 该天线包括矩形电介质基片，形成在电介质基底的顶表面上的辐射贴片，形成在电介质基底的顶表面上并从电介质基片一侧延伸到从 辐射贴片一段距离，金属支架布置在电介质基片的下表面上并从电介质基底的下表面的边缘向下延伸到地面，具有预定厚度的空气层形成在下表面 的电介质基片和地面。 根据实施例，可以在保持其小尺寸的同时提高宽带微带天线的方向性。

公开(公告)号：US20160187502A1

公开(公告)日：2016-06-30

申请号：US14981953

申请日：2015-12-29

Applicant: TSINGHUA UNIVERSITY ,  NUCTECH COMPANY LIMITED

Inventor： Kejun KANG ,  Shuwei LI ,  Qingjun ZHANG ,  Yuanjing LI ,  Yulan LI ,  Ziran ZHAO ,  Yinong LIU ,  Yaohong LIU ,  Weibin ZHU ,  Xiaolin ZHAO ,  Huishao HE

IPC: G01T7/00 ,  G01T1/20 ,  G01T1/16 ,  G21K1/02

CPC classification number: G01T7/00 ,  G01T1/1603 ,  G01T1/17 ,  G01T1/2006 ,  G01V5/0016 ,  G06T1/0014 ,  G09G2320/0626 ,  G09G2320/0646 ,  G21K1/02 ,  H01L27/30 ,  H04N5/3698 ,  H04N5/57 ,  H05G1/36

Abstract: The present invention discloses an X-ray beam intensity monitoring device and an X-ray inspection system. The X-ray beam intensity monitoring device comprises an intensity detecting module and a data processing module, wherein the intensity detecting module is adopted to be irradiated by the X-ray beam and send a detecting signal, the data processing module is coupled with the intensity detecting module to receive the detecting signal and output an X-ray beam intensity monitoring signal, wherein the X-ray beam intensity monitoring signal includes a dose monitoring signal of the X-ray beam and a brightness correction signal of the X-ray beam. The X-ray beam intensity monitoring device can simultaneously perform dose monitoring and brightness monitoring, thereby improving the service efficiency of the X-ray beam intensity monitoring device. Moreover, the monitoring result of the X-ray beam intensity can be more accurate and reliable.

Abstract translation: 本发明公开了一种X射线束强度监测装置和X射线检查系统。 X射线束强度监测装置包括强度检测模块和数据处理模块，其中强度检测模块被X射线束照射并发送检测信号，数据处理模块与强度 检测模块，用于接收检测信号并输出​​X射线束强度监测信号，其中X射线束强度监测信号包括X射线束的剂量监测信号和X射线束的亮度校正信号。 X射线束强度监测装置可以同时进行剂量监测和亮度监测，从而提高X射线束强度监测装置的使用效率。 此外，X射线束强度的监测结果可以更准确可靠。