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公开(公告)号：US11441982B2
公开(公告)日：2022-09-13
申请号：US17575150
申请日：2022-01-13
发明人： Weiyao Guo , Yan Tan , Tongbin Zhao , Yunliang Tan , Dongxiao Zhang
摘要： The disclosure provides a variable dip fault slip simulation test method, which relates to the technical field of indoor simulation test of underground engineering. The variable dip fault slip simulation test method of the disclosure adopts a sample device and a loading device, which includes the following steps: Step 1. sample preparation; Step 2. sample assembly; Step 3. loading preparation; Step 4. sample loading. The variable dip fault slip simulation test method of the disclosure can prepare rock like samples with different dip interfaces, simulate the slip failure process of faults with different dip angles, as well as the normal dip slip and reverse dip slip of faults, facilitate the operation of slip simulation test, and collect test data automatically and accurately.
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62.发明申请公开(公告)号：US20220221384A1
公开(公告)日：2022-07-14
申请号：US17580358
申请日：2022-01-20
发明人： Shanchao HU , Jing ZUO , Jianguo NING , Jun WANG , Yong GUO , Wenkai RU
IPC分类号： G01N3/08
摘要： The disclosure discloses an automatic simulation test bench and a test method for similar materials of top-coal caving mining. Wherein, the test bench includes a test bench base, a coal seam and strata simulation module, a coal releasing simulation module, a material recovery module, automatic mixing system and a central control system. The disclosure adopts modular construction to meet the requirements of similar material simulation test of top-coal caving mining under different geological conditions and mining technology to the greatest extent. The disclosure adopts automatic control, reduces the working intensity and operation difficulty of the test personnel, and reduces the influence of human factors on the test results. The disclosure adopts a lifting structural design, so as to meet the requirements of similar simulation test of top-coal caving mining under different mining and caving ratios.
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63.发明申请公开(公告)号：US20220213773A1
公开(公告)日：2022-07-07
申请号：US17627117
申请日：2020-07-23
发明人： Gang WANG , Zhiyuan LIU , Weimin CHENG , Xiangjie QIN , Jiuyuan FAN , Lulu SUN , Zhen LIU , Guanhua NI , Yanbin YU , Yixin LIU , Qiming HUANG
摘要： A deep low-permeability high gassy seam drilling-slitting-sealing-fracturing drilling device includes a drilling control system, a high-pressure water power system, a water pressure grading control system and a fracturing and sealing control system. The drilling control system adjusts a drilling direction a water supply pressure of the drill rod, the high-pressure water power system supplies high-pressure water with different pressures to the device, and the water pressure grading control system ensures that a water pressure for flushing drill cuttings is less than 5 MPa, a water pressure for slitting in a direction perpendicular to a length of the drill rod is 25-35 MPa, a water pressure for sealing with a borehole sealing capsule is 35-40 MPa, and a water pressure for further pressure relief and permeability increasing of a coal seam is 40-50 MPa. The fracturing and sealing control system controls borehole sealing and hydrofracturing operations.
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公开(公告)号：US20220209672A1
公开(公告)日：2022-06-30
申请号：US17624897
申请日：2020-04-28
发明人： Ningfan Zhong , Zhenhai Zhang , Jianbo Wei
摘要： The present invention relates to the technical field of high-gain DC-DC converters, and disclosed is a high-gain quasi-resonant DC-DC converter based on a voltage doubling rectifier circuit. On the basis of a half-bridge quasi-resonant high-gain circuit topology and by combining a bidirectional positive and negative voltage doubling rectifier circuit, the present invention provides a high-gain DC-DC converter. The converter can further improve output voltage gain and reduce output voltage ripples, and can improve the system efficiency while reducing the number of turns of a high-frequency transformer; moreover, the converter can achieve soft-switching control, thereby having the advantages of low voltage and current stress, high efficiency, and the like.
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公开(公告)号：US11327186B2
公开(公告)日：2022-05-10
申请号：US16603043
申请日：2018-09-27
发明人： Yanliang Pei , Baohua Liu , Pengyao Zhi , Guangming Kan , Chenguang Liu
摘要： The present invention discloses a submarine seismic monitoring apparatus and system based on the submarine Internet of things. A sea surface buoy network device and a submarine network device in the monitoring apparatus are connected by using an anchor system; the submarine network device and a submarine seismic detection device are connected by using a submarine photoelectric composite cable; there are one or more submarine seismic detection devices; the sea surface buoy network device includes a satellite transceiver apparatus, an Internet of things platform server, a network time server, and an autonomous energy supply apparatus; the submarine network device includes a photoelectric separation cabin, a submarine server, a bottom anchor weight block, and a mechanical releaser; and the submarine seismic detection device includes multiple submarine seismometer network nodes, where the multiple submarine seismometer network nodes are successively connected in series end to end by using the submarine photoelectric composite cable. The apparatus and system in the present invention not only can be used for submarine structure detection, but also can be used for earthquake disaster and tsunami warning, and can implement autonomous energy supply, long timing, and unattended operation.
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公开(公告)号：US11306588B2
公开(公告)日：2022-04-19
申请号：US17292152
申请日：2020-07-20
申请人： SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY , CHINA COMMUNICATIONS CONSTRUCTION CO., LTD , QINGDAO WEST COAST RAIL TRANSIT CO., LTD , QINGDAO FIRST MUNICIPAL ENGINEERING CO., LTD , HEBEI FEIPU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD
发明人： Xianghui Meng , Shibin Jiang , Weizhou Li , Hailiang Wang , Fu Yu , Wensheng He , Quanwei Liu , Chuan Li , Zhenbiao Wang , Lin Xin , Biao Kong , Xiangbao Meng , Yong Zhang , Wenming Zhang , Lide Hou , Jiufang Xiong , Xuanshan Zhang
摘要： A method of treating tunnel collapse includes leveling a collapse body and moving a pavilion support under the collapse cavity, lifting a shield plate until a lower edge of the shield plate surpasses a contour line of an initial supporting arch of a tunnel, connecting a bottom column and inserting a padding plate under a column. If the hydraulic prop retracts, the column, the bottom column, the padding plate and the hydraulic prop bear a load from the shield plate. Mounting and connecting the initial supporting arch, welding the intersection point of the column and the initial supporting arch, cutting off the column in the initial supporting arch. Transferring the load of the shield plate from the pavilion support to an initial supporting shed, spraying fast-setting concrete to a grid arch to form a closed shell, and pumping filling material to fill the space of the collapse cavity.
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公开(公告)号：US11243511B2
公开(公告)日：2022-02-08
申请号：US17260744
申请日：2019-04-29
发明人： Shun Jia , Yujie Zheng , Chao Liu , Qinghe Yuan , Zhiqiang Wang , Xiaoyuan Ma , Li Zhang , Haiyang Wang
IPC分类号： G05B19/4155 , G06K7/10
摘要： A load-energy efficiency evaluation and monitoring method includes an actual part processing number and a theoretical part processing number of the numerical control machine tool within an evaluation period are obtained to calculate a loading performance of the numerical control machine tool. A waste time value and a standby power value of the numerical control machine tool are obtained to calculate a waste energy value of the numerical control machine tool. A single-part actual processing energy consumption is obtained and used, together with a single-part ideal processing energy consumption, to calculate the load-energy efficiency of the numerical control machine tool. A relationship model between the load-energy efficiency and the loading performance of the numerical control machine tool is built based on the obtained model of the load-energy efficiency of the numerical control machine tool and the obtained model of the loading performance of the numerical control machine tool.
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公开(公告)号：US11215542B2
公开(公告)日：2022-01-04
申请号：US16652961
申请日：2019-02-28
发明人： Xuesheng Liu , Shilin Song , Yunliang Tan , Deyuan Fan , Jianguo Ning , Qingheng Gu , Ning Jiang , Jun Wang , Qiang Xu
摘要： A rock mechanics test system with impact loading-confining pressure unloading and its usage method. The test system includes bearing frame unit, axial compression loading unit, impact loading unit and confining pressure loading unit. The bearing frame unit includes pedestal, column and cross beam. The column is vertically installed on both sides of the upper surface of the pedestal, and the cross beam is horizontally fixed on the upper part of the column. The axial compression loading unit is fixed at the middle position of the upper surface of the pedestal and is used to exert the axial bottom-up pressure to the sample. The impact loading unit is fixed on the cross beam and is used to exert the axial top-down impact load on the sample.
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公开(公告)号：US20210371334A1
公开(公告)日：2021-12-02
申请号：US17188087
申请日：2021-03-01
发明人： Li Wang , Dengzheng Gao , Lihua Liu , Qingbin Guo , Zhen Xue
IPC分类号： C04B2/10
摘要： A method for producing a dust-reducing and dust-absorbing material from a nonmetallic mineral and a raw material from a cement plant. The method includes calcining the limestone block, to obtain quicklime; cooling the quicklime at ambient temperature, drying and pulverizing the quicklime, to obtain a first powder essentially consisting of a quicklime powder and a calcium carbonate powder; fully drying and grinding a nonmetallic mineral, to obtain a nonmetallic mineral powder; mixing the first powder and the nonmetallic mineral powder, stirring to be uniform, to obtain a mixture, and ball milling the mixture, to obtain a nano-powder; adding a dust-absorbing material to the nano-powder, adding water and mixing, and pouring the resulting mixture into a mold, and stoving; and air drying the resulting mixture, to obtain a cavernous dust-reducing and dust-absorbing material.
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公开(公告)号：US11158048B2
公开(公告)日：2021-10-26
申请号：US16957305
申请日：2019-10-21
发明人： Haixin Peng , Yingran Ma , Yuanhong Wang , Yanjun Peng , Xinming Lu
摘要： The present disclosure discloses a CT lymph node detection system based on a spatial-temporal recurrent attention mechanism and specifically relates to the field of medical image analysis technologies. Based on a deep convolutional neural network and a recurrent attention mechanism, the present disclosure can construct an attention feature map adaptive to a lesion size in a slice direction and a spatial direction of a lymph node CT sequence. Firstly, a high-level spatial feature corresponding to the lymph node CT image is extracted by use of a pre-trained convolutional network; secondly, a recurrent attention mechanism based on a Gaussian Kernel Function is constructed with a slice at the center of the lymph node as a reference in a spatial domain; based on this, a temporal (slice direction) attention mechanism based on a Gaussian Mixture Model is performed; in addition, a predicted attention position is constrained based on the prior information of position distribution of the lymph node in the CT slice sequence; finally, in combination with the high-level features extracted by the two attention methods, the recurrent neural network performs classification to obtain a lymph node detection result.
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