公开(公告)号：US20220357476A1

公开(公告)日：2022-11-10

申请号：US17588224

申请日：2022-01-29

Applicant: ZHEJIANG OCEAN UNIVERSITY

Inventor： Hanhao Zhu ,  Yangyang Xue ,  Zhiqiang Cui ,  Qile Wang

IPC: G01V1/30 ,  G01V1/18 ,  G01V1/38

Abstract: An inversion method for a multilayer seabed geoacoustic parameter in a shallow sea, includes: establishing a plurality of seabed models, different seabed models corresponding to different layer numbers, randomly generating a value of each geoacoustic parameter based on a preset change range corresponding to each geoacoustic parameter, then calculating to obtain a theoretical sound pressure value, and comparing the theoretical sound pressure value with an actual sound pressure value, adjusting and updating the value of each geoacoustic parameter according to the comparison result until the obtained theoretical sound pressure value is matched with the actual sound pressure value, and obtaining a target geoacoustic parameter value; calculating to obtain a BIC value corresponding to each seabed model; and taking the seabed model with the minimum BIC value as a target seabed model, and taking a target geoacoustic parameter value corresponding to the target seabed model as a target inversion parameter value.

公开(公告)号：US11778989B2

公开(公告)日：2023-10-10

申请号：US18190131

申请日：2023-03-27

Applicant: ZHEJIANG OCEAN UNIVERSITY

Inventor： Xiaorou Zhang ,  Hanhao Zhu ,  Yeyi Si ,  Chenchen Lin ,  Yue Pan ,  Qingqian Xu ,  Guiming He ,  Kangkang Jian ,  Yiwei Yao ,  Zhigang Chai ,  Xu Liu ,  Jiahui Wang ,  Zhiqiang Cui ,  Qile Wang

IPC: A01K61/00 ,  A01K63/04

CPC classification number: A01K61/00 ,  A01K63/045

Abstract: A water changing device for aquaculture breeding, comprises a breeding box. A drainage pipe is inserted into the inner wall below the breeding box; the drainage pipe has an L-shaped structure, and the horizontal side is located at the lower side of the breeding box; a sealing block is tightly inserted above the drainage pipe; a circular ring is arranged on the outer side wall of the upper end of the drainage pipe; a groove is arranged above the circular ring along the circumferential direction, and a filter screen is tightly inserted into the groove; the side wall of the drainage pipe below the breeding box is fixedly connected with a horizontal rod, and one side of the side wall below the breeding box close to the horizontal rod is fixedly provided with a threaded rod.

公开(公告)号：US11778990B2

公开(公告)日：2023-10-10

申请号：US18190129

申请日：2023-03-27

Applicant: ZHEJIANG OCEAN UNIVERSITY

Inventor： Yin Zhang ,  Hanhao Zhu ,  Yeyi Si ,  Chenchen Lin ,  Yue Pan ,  Qingqian Xu ,  Guiming He ,  Kangkang Jian ,  Yiwei Yao ,  Zhigang Chai ,  Xu Liu ,  Jiahui Wang ,  Zhiqiang Cui ,  Qile Wang

IPC: A01K61/85

CPC classification number: A01K61/85

Abstract: An automatic food feeder for aquatic breeding comprises a bottom plate; the lower side of the bottom plate is provided with a driving mechanism, and the driving mechanism comprises four groups of rotating shafts located on the lower side of the bottom plate; gears are sleeved on the outer sides of the two groups of rotating shafts, and a conveyor belt is connected between the two groups of gears; a plurality of groups of meshing teeth matched with the gears are uniformly provided on the inner side of the conveyor belt, and a plurality of groups of electric telescopic push blocks are uniformly arranged on the outer side of the conveyor belt; a placing rack is connected on the upper side of the bottom plate, and a control box is connected on the front part of the lower side of the placing rack.