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    Visible light detector with high-photoresponse based on TiO
    134.
    发明授权
    Visible light detector with high-photoresponse based on TiO 有权

    公开(公告)号：US11961934B2

    公开(公告)日：2024-04-16

    申请号：US17343048

    申请日：2021-06-09

    Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

    Inventor： Yinghui Sun ,  Bingxu Liu ,  Rongming Wang

    IPC: H01L31/109 ,  H01L31/0336 ,  H01L31/18

    CPC classification number: H01L31/109 ,  H01L31/03365 ,  H01L31/1828

    Abstract: In the field of photoelectric devices, a visible light detector is provided with high-photoresponse based on a TiO2/MoS2 heterojunction and a preparation method thereof. The detector, based on a back-gated field-effect transistor based on MoS2, includes a MoS2 channel, a TiO2 modification layer, a SiO2 dielectric layer, Au source/drain electrodes and a Si gate electrode, The TiO2 modification layer is modified on the surface of the MoS2 channel. By employing micromechanical exfoliation and site-specific transfer of electrodes, the method is intended to prepare a detector by constructing a back-gated few-layer field-effect transistor based on MoS2, depositing Ti on the channel surface, and natural oxidation.

    METHOD OF LOCATING FAILURE IN COAL-ROCK-CONCRETE BASED ON VECTOR FEATURES OF NEAR-FIELD ELECTROMAGNETIC FIELD
    136.
    发明公开
    METHOD OF LOCATING FAILURE IN COAL-ROCK-CONCRETE BASED ON VECTOR FEATURES OF NEAR-FIELD ELECTROMAGNETIC FIELD 审中-公开

    公开(公告)号：US20230417943A1

    公开(公告)日：2023-12-28

    申请号：US17940005

    申请日：2022-09-08

    Applicant: University of Science and Technology Beijing

    Inventor： Dazhao SONG ,  Yuqing CHENG ,  Xueqiu HE ,  Menghan WEI ,  Yongjun TONG

    IPC: G01V3/08

    CPC classification number: G01V3/081

    Abstract: A method of locating a failure of coal-rock-concrete based on vector features of a near-field electromagnetic field is provided. The method senses and records the real electromagnetic field vector information in space by arranging a triaxial electromagnetic sensor array around a coal-rock-concrete body, and realizes the localization of the failure areas of the coal-rock-concrete body by establishing an electromagnetic radiation localization model for the failures of the coal-rock concrete body. The electromagnetic radiation localization model for the failures of the coal-rock concrete body approximates the radiation source of electromagnetic radiation generated by failures as a dipole with a dipole moment, so as to realize the localization of a large number of relatively small-intensity failures during the disaster incubation stage and evolution process, realize the monitoring and early warning of the final disaster locations, and further improve the reliability of electromagnetic radiation positioning technology.

    PROCESS FOR EVALUATING CORROSION INHIBITOR BASED ON HIGH-THROUGHPUT CORROSION CHIP
    137.
    发明公开
    PROCESS FOR EVALUATING CORROSION INHIBITOR BASED ON HIGH-THROUGHPUT CORROSION CHIP 审中-公开

    公开(公告)号：US20230408398A1

    公开(公告)日：2023-12-21

    申请号：US17936946

    申请日：2022-09-30

    Applicant: University of Science and Technology Beijing

    Inventor： Dawei Zhang ,  Lingwei Ma ,  Chenhao Ren ,  Jinke Wang ,  Xiaogang LI

    IPC: G01N17/00

    CPC classification number: G01N17/006

    Abstract: The present disclosure discloses a process for evaluating a corrosion inhibitor based on a high-throughput corrosion chip. In the present disclosure, a high-throughput corrosion chip is first prepared by using a chip spotter, and only a corrosion inhibitor and a corrosive substance need to be spotted on a metal sample to quickly, efficiently, and accurately evaluate performance of a corrosion inhibitor formulation, to meet corrosion test conditions such as different substances, different concentrations, and different corrosion duration; and then a corrosion degree of each measurement point in the high-throughput corrosion chip is identified and quantified by using a laser scanning confocal microscope. The high-throughput corrosion chip prepared by using the foregoing method can bear 10-1000 measurement points, and these measurement points can reflect corrosion effects of different inhibitor formulations in different corrosion duration.

    REINFORCEMENT LEARNING-BASED DECISION OPTIMIZATION METHOD OF OILFIELD PRODUCTION SYSTEM
    138.
    发明公开
    REINFORCEMENT LEARNING-BASED DECISION OPTIMIZATION METHOD OF OILFIELD PRODUCTION SYSTEM 审中-公开

    公开(公告)号：US20230358123A1

    公开(公告)日：2023-11-09

    申请号：US18143660

    申请日：2023-05-05

    Applicant: University of Science and Technology Beijing ,  Beijing Zhongke Zhishang Technology Co., Ltd.

    Inventor： Hongqing SONG ,  Shuyi DU ,  Liying SONG ,  Jiulong WANG ,  Ming YUE

    IPC: E21B43/16 ,  E21B43/25

    CPC classification number: E21B43/168 ,  E21B43/255

    Abstract: The present disclosure provides a reinforcement learning-based decision optimization method of an oilfield production system, including: collecting dynamic production data of an oilfield production site to establish a data cube for reservoir production optimization; training a preset machine learning model based on the data cube to obtain a reinforcement learning-based reservoir injection-production system surrogate model configured to predict oil production according to the dynamic production data available on site; constructing an evaluation function for production optimization of a gas injection reservoir; establishing, during a process of production optimization, an enforced constraint model based on input parameters and a boundary constraint condition; and with the constraint model and the boundary constraint condition as constraints, the reservoir injection-production system surrogate model as a basis, and the evaluation function as an optimization direction, searching reservoir production optimization schemes for an optimal production scheme.

    METHOD AND SYSTEM FOR PREDICTING POST-EARTHQUAKE REPAIR OF BUILDING GROUPS IN COMMUNITY
    139.
    发明公开
    METHOD AND SYSTEM FOR PREDICTING POST-EARTHQUAKE REPAIR OF BUILDING GROUPS IN COMMUNITY 审中-公开

    公开(公告)号：US20230325737A1

    公开(公告)日：2023-10-12

    申请号：US17954357

    申请日：2022-09-28

    Applicant: University of Science and Technology Beijing

    Inventor： Zhen XU ,  Furong ZHANG ,  Xintian HAO

    IPC: G06Q10/06

    CPC classification number: G06Q10/06313 ,  G06Q50/26

    Abstract: A method and system for predicting post-earthquake repair of building groups in community are provided. The method includes: obtaining seismic damage states, building functions, and building areas of building groups in the community; determining a repair priority of each building based on functional classifications of the buildings; calculating a building repair workload considering the seismic damage states and building areas of the building groups in the community, and developing an individual-building repair model for simulating the repair process of an individual building under certain resource conditions; and developing a community building group repair resource allocation model and a community building group repair system dynamics model to predict the repair process of the building groups in the community at different levels of resource availability. The technical solution of the present invention can simulate the post-earthquake repair process of the building groups in the community.

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