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公开(公告)号：US20240287751A1
公开(公告)日：2024-08-29
申请号：US18505082
申请日：2023-11-08
发明人： Bangwen Zhang , Anjun Deng , Dangwei Wang , Wen Lu , Hongling Shi , Huifang Liu , Hejing Zhao , Qin Lu , Zhandi Dong , Maohua Le , Yiqin Xie , Ke Ni
IPC分类号： E02B8/02
CPC分类号： E02B8/02
摘要： A method and device for optimizing regulation of reservoir sediment discharging, comprises: determining a relation curve between a dam front water depth and a reservoir capacity; determining a time length by which a sediment peak is propagated to the front of a dam and a time length by which the sediment peak lags behind a flood peak at the front of the dam based on the relation curve and the hydrologic features; determining another relation curve between a sediment peak attenuation rate and a sediment concentration of the sediment peak, and a time length by which the sediment peak subjected to a man-made flood wave is propagated to the front of the dam; and acquiring a real-time sediment concentration, and generating the man-made flood wave based on the time length by which the sediment peak is propagated to the front of the dam and the another relation curve.
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2.发明公开公开(公告)号：US20240122129A1
公开(公告)日：2024-04-18
申请号：US18224060
申请日：2023-07-20
发明人： Jiufu LUO , Xin SUI , Zhongxin LUO , Sainan WU , Xiaolin LUO
CPC分类号： A01G17/06 , A01G25/02 , A01G25/165 , A01G25/167 , H02S20/10 , A01G22/05
摘要： Provided is a method for interplanting grape and Polygonatum kingianum in a photovoltaic (PV) power plant. The method includes: building a grapevine traction frame which is higher in south and lower in north in a space formed by a plurality of PV modules in the PV power plant, the grapevine traction frame includes a plurality of uprights, a plurality of traction crossbars, a plurality of supporting bars and a wire mesh; making a grape ridge below the south of each PV module and planting grape seedlings; maintaining two branches for each of the grape seedlings in the same year of grape planting, and pulling the two branches along the traction crossbar located in south; pulling branches grown out of arm bud points southwards onto the wire mesh in the next year of grape planting; sowing and ploughing a green manure, making planting beds in a shade and planting Polygonatum kingianum.
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公开(公告)号：US11766004B2
公开(公告)日：2023-09-26
申请号：US17525055
申请日：2021-11-12
申请人： CHINA INSTITUTE OF WATER RESOURCES AND HYDROPOWER RESEARCH , BEIJING AITEFU WATER SAVING TECHNOLOGY CO., LTD.
发明人： Yan Mo , Jiandong Wang , Yanqun Zhang , Qiaoling Li , Shihong Gong , Di Xu , Xiaoyan Gao
IPC分类号： A01G25/02
CPC分类号： A01G25/023
摘要： A drip irrigation apparatus and system. The drip irrigation apparatus includes a flow channel body and an elastic body. The elastic body is mounted on the outer circumference of the flow channel body and fitted in a spontaneous state to the outer circumference of the flow channel body. The flow channel body includes an energy dissipation body. The first drainage channel is formed in the energy dissipation body, the first drainage channel is connected to both ends of the energy dissipation body. The first drainage channel is connected at both ends of the first drainage channel to the inner wall of the elastic body forming a radial drainage channel.
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公开(公告)号：US20230160515A1
公开(公告)日：2023-05-25
申请号：US17779073
申请日：2021-04-13
发明人： Huichao DAI , Hao WANG , Jiazhen LI , Xinlei GUO , Yongxin GUO , Tao WANG , Hanqing ZHAO , Hui FU , Jiajia PAN
IPC分类号： F16L55/055 , F16K24/04 , F16K15/03
CPC分类号： F16L55/055 , F16K24/046 , F16K15/034
摘要： The present invention relates to a variable-flow-path air valve for water hammer prevention and a design method. The variable-flow-path air valve includes a valve body with a top provided with an air intake-exhaust port. A ball valve seat and a floating ball are arranged below the air intake-exhaust port. The valve body is provided with at least one swing check valve configured to be opened inward. The swing check valve includes: a swing valve disc connected to a valve body hinge, a variable-flow-path air inlet controlled by the swing valve disc to open and close, a device for limiting the opening degree of the swing valve disc, and a sealing device. In the present invention, the air valve takes in air through the air intake-exhaust port and the variable flow path, and discharges air only through the air intake-exhaust port.
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公开(公告)号：US11585218B2
公开(公告)日：2023-02-21
申请号：US17396133
申请日：2021-08-06
发明人： Yujie Wang , Ruilang Cao , Yufei Zhao , Lipeng Liu , Qiang Shen , Jin Pi , Xingsong Sun , Shangxin Feng , Lifeng Zheng
摘要： A drilling device for surveying front rock-mass intactness of a tunnel face for a tunnel constructed by a TBM and a method using the same are provided. The drilling device includes a drilling assembly, a drill-attitude control assembly, a data monitoring assembly and a TBM-platform fixing seat. The drilling assembly is connected to a TBM hydraulic system to obtain power, to drill the rock mass by an alloy bit through rotation and translation thereof. The drill-attitude control assembly controls an angle, a direction and a position of a drill rod and maintains drilling accuracy and stability. The data monitoring assembly acquires and stores a drilling dynamic-response signal by a high-accuracy sensor and a data recorder, to analyze an intactness characteristic of the rock mass. The TBM-platform fixing seat mounts the drilling device on the TBM.
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公开(公告)号：US20220390415A1
公开(公告)日：2022-12-08
申请号：US17426768
申请日：2020-03-31
发明人： Feng Shang , Guoxin Zhang , Bo Yang , Yi Liu
IPC分类号： G01N27/87
摘要： A device and method for detecting wire breakage are provided. The wire breakage detection device includes an excitation coil, a detection coil, and a processor. The detection signal input end of the processor is connected to the detection coil. The excitation coil and the detection coil are located on two sides of a longitudinal section of an inner wall of a to-be-detected pipeline respectively, wherein a conductive closed structure is formed continuously and annularly in the to-be-detected pipeline, the axis of the excitation coil is parallel to the axis of the to-be-detected pipeline, and the axis of the detection coil is perpendicular to the axis of the to-be-detected pipeline. The excitation coil is configured to generate an alternating magnetic field according to an alternating electromagnetic signal, wherein an induced current and an electromagnetic field of the induced current are generated by the to-be-detected pipeline located in the alternating magnetic field.
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公开(公告)号：US20220064888A1
公开(公告)日：2022-03-03
申请号：US17148584
申请日：2021-01-14
发明人： Dangwei Wang , Anjun Deng , Ye Yin , Qingchao Guo , Xinlei Guo , Tianjie Lei , Hantao Wang , Cuihua Chen , Hongling Shi , Qin Lu
IPC分类号： E02B9/04
摘要： Provided is a lateral water intake structure for preventing silting of bed load and floating debris, which is provided at a river bank. The lateral water intake structure includes: a diversion canal, a guiding wall structure, a shaft-shaped water intaking space, and a trash rack. The lateral water intake structure functions to prevent the floating debris from gathering at the surface of the trash rack and reduce a risk that the trash rack is damaged by water pressure and hitting of the floating debris. Meanwhile, by using a water flow in the watercourse to continuously wash the floating debris near the trash rack, maintenance costs of removing the floating debris at the trash rack manually or mechanically can be reduced.
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公开(公告)号：US20210065376A1
公开(公告)日：2021-03-04
申请号：US17086153
申请日：2020-10-30
发明人： Wenlong SONG , Rui TANG , Juan LV , Jingxuan LU , Kun YANG , Zhicheng SU , Yuanyuan DUAN , Xuejun ZHANG , Lihua ZHAO , Yizhu LU , Hongjie LIU
摘要： A Region Merging image segmentation algorithm based on boundary extraction is disclosed, comprising the steps of calculating a gradient image, extracting a boundary and carrying out initial segmentation and Region Merging, wherein the initial segmentation can be omitted. In the Region Merging process, the ratio of the length of boundary extraction result lies on the adjacent edge between adjacent regions to the length of the adjacent edge is taken as the merging cost, the regions are merged according to the ascending order of the mean gradient value in the region, and a texture difference evaluation mechanism is introduced to remove the error segmentation. The algorithm solves the problems of the other current segmentation algorithms, such as over-segmentation, easy to be influenced by noise and illumination, large in computation and memory consumption, in need of a large number of samples being marked manually and the like. Besides, all regions or all categories achieve the best segmentation result on one final segmentation result. These advantageous features can reduce the computational resource consumption of subsequent tasks and improve their processing effect.
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公开(公告)号：US10815631B1
公开(公告)日：2020-10-27
申请号：US16886787
申请日：2020-05-29
发明人： Jinsheng Jia , Yang Wang , Cuiying Zheng , Shuguang Li , Wanli Shi , Zhongwei Liu , Tianjie Lei , Lianying Ding , Yangfeng Wu
摘要： A method for cemented material dam construction based on whole-process quality control includes: determining a water-binder ratio of a sand and gravel material through a simulation test; laying rockfill on the first cemented sand and gravel layer before the final setting time of the first cemented sand and gravel layer; adjusting the maximum particle size of the rockfill and the distance between the particles in the rockfill according to the design requirements; spraying a cement slurry on the rockfill to wrap all the particles in the rockfill and laying a second cemented sand and gravel layer before the initial setting time of the cement slurry; performing rolling compaction on the construction layer until the decline in the thickness of the construction layer and the apparent density of the rolled surface meet the design requirements; and completing the cemented material dam construction.
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公开(公告)号：US10579756B2
公开(公告)日：2020-03-03
申请号：US15544160
申请日：2016-06-30
发明人： Di Xu , Shaohui Zhang , Meijian Bai , Yinong Li , Fuxiang Li
IPC分类号： G06F17/50
摘要： A simulation method of a surface water movement process in surface irrigation, comprising: acquiring surface relative elevation data, border surface roughness coefficient data and surface water infiltration rate data of a target border check; substituting surface relative elevation data, border surface roughness coefficient data and surface water infiltration rate data into improved full hydrodynamic equations, and performing numerical solution on improved full hydrodynamic equations to obtain a simulated surface water depth value and simulated values of vertical integral average velocities of an irrigation water flow in x-coordinate and y-coordinate directions of a certain measurement site in the target border check at a certain time; and obtaining simulated values of unit width discharge of the irrigation water flow in x-coordinate and y-coordinate directions, respectively according to simulated surface water depth value and simulated values of the vertical integral average velocities of the irrigation water flow in x-coordinate and y-coordinate directions.
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