-
61.发明公开公开(公告)号：US20240085290A1
公开(公告)日：2024-03-14
申请号：US18554576
申请日：2022-06-08
Inventor： Weitao LIU , Haifeng WU , Xiangxi MENG , Yanhui DU , Lifu PANG , Mengke HAN , Jiyuan ZHAO
Abstract: The present disclosure provides a grouting and water-plugging device for a fractured rock in a mine coupling state and a test method, and relates to the technical field of rock mechanics testing. The device includes a pressurizer, a reservoir, a test box, and a grouting pump. The reservoir includes a temperature sensor and a pressing-water plate. The pressing-water plate is connected to the pressurizer through a pressurizing rod. A pressure measuring pipe and a drainage pipe are installed on an outer side of the reservoir. The reservoir is connected to a water pump through a water injection pipe. The test box includes a rock, a transverse force exerting plate, a longitudinal force exerting plate, a stress sensor and the temperature sensor. The longitudinal force exerting plate is provided with multiple water through holes. A sliding box door is hinged to a front wall of the test box. The pressure measuring pipe and the drainage pipe are installed on a rear wall of the test box. The rear wall of the test box is connected to the grouting pump through a grouting pipe. A water pressure gauge is installed on the grouting pipe. Valves are installed on the grouting pipe, the pressure measuring pipe, the water injection pipe, and the drainage pipe. The device can be used to conduct a test, simulating coupling conditions of stress-temperature-water pressure in a mine, for a rock, and to verify the effectiveness of water plugging.
-
62.发明公开公开(公告)号：US20240077423A1
公开(公告)日：2024-03-07
申请号：US17795351
申请日：2021-03-21
Applicant: SHANDONG UNIVERSITY
Inventor： Chao GAO , Dan XIAO , Wen ZHANG , Cuiqing MA , Ping XU
IPC: G01N21/64 , C07K14/195 , C12N15/70 , G01N21/76
CPC classification number: G01N21/6486 , C07K14/195 , C12N15/70 , G01N21/763 , C07K2319/21
Abstract: A transcriptional regulator specifically responding to D-2-hydroxyglutarate (D-2-HG) and its application in the biological detection of D-2-HG. Wherein the transcriptional regulator is named DhdR and the nucleotide sequence is shown as SEQ ID NO: 1. The D-2-HG biosensors BD2HG-0 and BD2HG-1 are constructed using the transcriptional regulator DhdR and can detect biological samples containing D-2-HG.
-
公开(公告)号：US11919642B2
公开(公告)日：2024-03-05
申请号：US17733896
申请日：2022-04-29
Applicant: Shandong University of Technology
Inventor： Lili Yi , Yubin Lan , Xin Han , Fanxia Kong , Huizheng Wang , Guobin Wang , Rongxin Zhang , Guangyu Yang , Lijie Geng , Weixu Ran
IPC: B64U10/13 , B64D1/18 , B64C39/02 , B64U101/00 , B64U101/45
CPC classification number: B64D1/18 , B64C39/024 , B64U10/13 , B64U2101/00 , B64U2101/45
Abstract: A large-load unmanned aerial vehicle (UAV) for plant protection with adjustable spraying swath and pesticide application amount is provided, relating to the technical field of pesticide application of unmanned aerial vehicles. The large-load unmanned aerial vehicle for plant protection comprises a large-load unmanned aerial vehicle, a pesticide box, a variable pesticide application system, and adjustable spraying swath mechanisms, wherein the pesticide box is fixed to landing gears of the unmanned aerial vehicle and is positioned below a control platform of the unmanned aerial vehicle; the adjustable spraying swath mechanisms are arranged on the landing gears, the variable pesticide application system is connected with the pesticide box and the adjustable spraying swath mechanisms, the variable pesticide application system and the adjustable spraying swath mechanisms are electrically connected with the control platform, and the control platform is in communication connection with a remote control handle.
-
64.发明公开公开(公告)号：US20240072541A1
公开(公告)日：2024-02-29
申请号：US18269814
申请日：2022-11-07
Applicant: SHANDONG UNIVERSITY
Inventor： Alian CHEN , Tong LIU , Chenghui ZHANG
CPC classification number: H02J3/241 , H02J3/388 , H02J2203/20
Abstract: A model predictive virtual synchronous generator inverter control method considering a frequency-movement direction includes: obtaining a current frequency absolute value based on fundamental frequency of an inverter and a steady-state absolute value based on the fundamental frequency of the inverter; determining a frequency-movement state by comparing the above two absolute values: in a state of deviating from the fundamental frequency or a state of regressing to the fundamental frequency; setting a corresponding prediction output horizon according to the frequency-movement state, and constructing a cost function considering the frequency-movement state; and calculating an optimal virtual power increment value based on the cost function, then calculating an optimal virtual power, inputting the optimal virtual power to a swing equation of a virtual synchronous generator, and performing frequency adjustment according to an output value.
-
65.发明授权公开(公告)号：US11906481B1
公开(公告)日：2024-02-20
申请号：US18554576
申请日：2022-06-08
Inventor： Weitao Liu , Haifeng Wu , Xiangxi Meng , Yanhui Du , Lifu Pang , Mengke Han , Jiyuan Zhao
Abstract: The present disclosure provides a grouting and water-plugging device for a fractured rock in a mine coupling state and a test method, and relates to the technical field of rock mechanics testing. The device includes a pressurizer, a reservoir, a test box, and a grouting pump. The reservoir includes a temperature sensor and a pressing-water plate. The pressing-water plate is connected to the pressurizer through a pressurizing rod. A pressure measuring pipe and a drainage pipe are installed on an outer side of the reservoir. The reservoir is connected to a water pump through a water injection pipe. The test box includes a rock, a transverse force exerting plate, a longitudinal force exerting plate, a stress sensor and the temperature sensor. The longitudinal force exerting plate is provided with multiple water through holes. A sliding box door is hinged to a front wall of the test box. The pressure measuring pipe and the drainage pipe are installed on a rear wall of the test box. The rear wall of the test box is connected to the grouting pump through a grouting pipe. A water pressure gauge is installed on the grouting pipe. Valves are installed on the grouting pipe, the pressure measuring pipe, the water injection pipe, and the drainage pipe. The device can be used to conduct a test, simulating coupling conditions of stress-temperature-water pressure in a mine, for a rock, and to verify the effectiveness of water plugging.
-
Patent Agency Ranking
66.发明公开公开(公告)号：US20240042105A1
公开(公告)日：2024-02-08
申请号：US18266279
申请日：2021-07-28
Applicant: SHANDONG UNIVERSITY
Inventor： Haifeng Lu , Chuanjian Zhou , Shengyu Feng , Hua Wang , Chen An , Yuan Qu , Fanzhen Kong , Qingming Zeng
Abstract: The present disclosure relates to hydrophilic silicone rubber serving as a medical catheter and a preparation method and application thereof. The hydrophilic silicone rubber is obtained from polysiloxane containing a nitrile group through a formula design and ultraviolet light irradiation, and can be applied to preparation of silicon rubber medical catheters. The hydrophilic silicone rubber prepared in the present disclosure is cross-linked by ultraviolet irradiation, without a transition metal catalyst, and without metal ion residues. The hydrophilic silicone rubber prepared in the present disclosure can be directly taken as a medical catheter for use, or as a basic formula for use after adding other auxiliary ingredients, so as to meet special needs of various medical places.
-
公开(公告)号：US11893661B2
公开(公告)日：2024-02-06
申请号：US17194946
申请日：2021-03-08
Applicant: University of Iowa Research Foundation , Shandong University , Shandong Provincial Chest Hospital , Rensselaer Polytechnic Institute
Inventor： Wenxiang Cong , Ye Yangbo , Ge Wang , Shuwei Mao , Yingmei Wang
CPC classification number: G06T11/006 , A61B6/032 , G06T11/003 , G06T11/005 , G06T2211/408 , G06T2211/424
Abstract: The disclosed apparatus, systems and methods relate to a framelet-based iterative algorithm for polychromatic CT which can reconstruct two components using a single scan. The algorithm can have various steps including a scaled-gradient descent step of constant or variant step sizes; a non-negativity step; a soft thresholding step; and a color reconstruction step.
-
公开(公告)号：US20240026788A1
公开(公告)日：2024-01-25
申请号：US18197894
申请日：2023-05-16
Inventor： Lirong Wan , Xiaoqi Ma , Qingliang Zeng , Zhiyuan Sun , Wenqian Xu , Zhaoji Li , Yanpeng Zhu , Baolong Chen
CPC classification number: E21D23/0427 , E21D23/0047 , E21D23/0069 , E21D23/16 , E21F17/18
Abstract: The present disclosure relates to a hydraulic support with a quick response function for coal wall spalling, which includes a base, an upright post, a top beam, an extensible canopy, a face guard, and a vibration meter. The vibration meter is mounted on a hydraulic support, and detects a vibration signal of a coal wall in a non-contact mode. The face guard includes a primary face guard, a secondary face guard, and a tertiary face guard connected in sequence. One side, close to a coal wall, of the primary face guard is connected to a quick response device. The quick response device is in signal communication with the vibration meter. After receiving the vibration signal of the coal wall, the quick response device is abutted against the coal wall before the secondary face guard and the tertiary face guard fit the coal wall.
-
公开(公告)号：US11880014B2
公开(公告)日：2024-01-23
申请号：US18206631
申请日：2023-06-07
Applicant: Shandong University
Abstract: A prediction method for changes of physical parameters after earthquakes includes: obtaining a precipitable water vapor after an earthquake in a target monitoring area during a historical period; verifying the accuracy of the precipitable water vapor collected in the historical period; obtaining thermal anomaly data of the land surface temperature after the earthquake in the target monitoring area during the historical period; determining a time difference between peak of the precipitable water vapor and peak of the thermal anomaly of the land surface temperature; when the earthquake occurs again in the target monitoring area, detecting a time point corresponding to the peak of the thermal anomaly of the land surface temperature in the target monitoring area, adding the time point to the time difference to obtain a predicted time point of the peak of precipitable water vapor, and outputting the predicted time point as a time point of secondary disaster.
-
公开(公告)号：US11879874B2
公开(公告)日：2024-01-23
申请号：US17641007
申请日：2020-09-07
Applicant: SHANDONG UNIVERSITY
Inventor： Shucai Li , Zhenhao Xu , Heng Shi , Peng Lin , Tengfei Yu , Huihui Xie , Yichi Zhang , Ruiqi Shao
IPC: G01N3/56
CPC classification number: G01N3/56 , G01N2203/0048
Abstract: A TBM-mounted surrounding rock wear resistance testing system and method, the system including: a fixing module, arranged on a TBM, the module has a movable end for extending to the surrounding rock of a tunnel; a surrounding rock polishing module on the movable end, the module includes a polishing mechanism for test area; a surrounding rock wear resistance testing module on the movable end, follows the movable end moving the test area, and including a mechanism for testing the wear resistance of the polished test area and a drive mechanism thereof; and a central control module, configured to control the motion states and operations of the fixing module, the surrounding rock polishing module and surrounding rock wear resistance testing module, and determine the wear resistance of the surrounding rock according to the wear resistance test result. The system can polish tunnel surrounding rock during TBM excavation and test wear resistance.
-
-
-
-
-
-
-
-
-
Search Results
899
records
(took 0.018 seconds)
