-
公开(公告)号：US11993013B2
公开(公告)日：2024-05-28
申请号：US17578398
申请日：2022-01-18
Applicant: Zhejiang University
Inventor： Bin Zhang , Qi Li , Yichen Luo , Teng Yang , Bo Zhang , Liang Ma , Huayong Yang
IPC: B29C64/209 , B29C64/232 , B29C64/236 , B29C64/245 , B29C64/35 , B33Y30/00 , B33Y40/10
CPC classification number: B29C64/209 , B29C64/232 , B29C64/236 , B29C64/245 , B29C64/35 , B33Y30/00 , B33Y40/10
Abstract: A multi-nozzle concurrent printing system includes a plurality of extrusion type nozzle assemblies, a three-axial translation mechanism and an objective table. Each nozzle assembly is provided with a nozzle, a storage barrel and a temperature control module; the three-axial translation mechanism includes an X-axial translation unit, a Y-axial translation unit and a Z-axial translation unit, and the nozzle assemblies are mounted on the Z-axial translation unit; and there are a plurality of nozzle assemblies, the printing system is provided with a concurrent calibration sensor, and the concurrent calibration sensor is taken as an original point of a coordinate system of the printing system. The printing system is provided with the plurality of nozzle assemblies which can work cooperatively or sequentially, the printing mode is flexible and changeable, and non-uniform mixing system forming of materials can be realized; and stable output of the materials in a formal printing task is guaranteed.
-
Patent Agency Ranking
公开(公告)号：US20220134654A1
公开(公告)日：2022-05-05
申请号：US17578398
申请日：2022-01-18
Applicant: Zhejiang University
Inventor： Bin Zhang , Qi Li , Yichen Luo , Teng Yang , Bo Zhang , Liang Ma , Huayong Yang
IPC: B29C64/209 , B29C64/232 , B29C64/236 , B29C64/245 , B29C64/35 , B33Y30/00 , B33Y40/10
Abstract: A multi-nozzle concurrent printing system includes a plurality of extrusion type nozzle assemblies, a three-axial translation mechanism and an objective table. Each nozzle assembly is provided with a nozzle, a storage barrel and a temperature control module; the three-axial translation mechanism includes an X-axial translation unit, a Y-axial translation unit and a Z-axial translation unit, and the nozzle assemblies are mounted on the Z-axial translation unit; and there are a plurality of nozzle assemblies, the printing system is provided with a concurrent calibration sensor, and the concurrent calibration sensor is taken as an original point of a coordinate system of the printing system. The printing system is provided with the plurality of nozzle assemblies which can work cooperatively or sequentially, the printing mode is flexible and changeable, and non-uniform mixing system forming of materials can be realized; and stable output of the materials in a formal printing task is guaranteed.
-
公开(公告)号：US12203079B2
公开(公告)日：2025-01-21
申请号：US17811764
申请日：2022-07-11
Applicant: ZHEJIANG UNIVERSITY
Inventor： Liuhui Kuang , Qi Li , Dezhi Wu , Guoping Zhang
Abstract: An Agrobacterium-mediated genetic transformation method for sea barleygrass is provided. The method includes: S1, selecting immature embryo materials of sea barleygrass with immature embryos each having a length in a range of 0.5-1.0, sterilizing them with alcohol and sodium hypochlorite to obtain sterilized seeds; S2, separating the immature embryos, crosscutting the immature embryos, and inducing callus generation and proliferation; S3, adjusting pre-culture time and Agrobacterium infection time of calli based on the callus generation and Agrobacterium growth to thereby prevent excessive Agrobacterium liquid; and S4, performing adventitious bud induction culture and rooting induction culture under a shielding-formed low-light environment to obtain tissue culture plantlets. It relates to a tissue culture method for immature embryos of sea barleygrass with high green spot differentiation and plantlet formation rates, which is not limited by materials. A transformation and regeneration system has high genetic transformation and mutation efficiency.
-
公开(公告)号：US12131484B1
公开(公告)日：2024-10-29
申请号：US18732676
申请日：2024-06-04
Applicant: Zhejiang University
Inventor： Yunfeng Yan , Haoyuan Jin , Donglian Qi , Qi Li , Rui Han , Bingxiao Mei , Zezhou Wang , Gang Chen
CPC classification number: G06T7/20 , G06T5/20 , G06T7/11 , G06V10/44 , G06V10/806 , G06V2201/07
Abstract: A multi-object tracking method based on authenticity hierarchizing and occlusion recovery relates to the technical field of multi-object tracking for security management and control of complex scenes. The method includes the following steps: image acquisition, object detection, authenticity hierarchizing, hierarchical association and outputting tracks. The multi-object tracking method is helpful to solve the long-term puzzling occlusion problem in the field of multi-object tracking, the constructed new algorithm framework can achieve an advanced tracking performance, improve the adaptability of the method to complex environments, and adapt to more difficult video surveillance security control tasks.
-
公开(公告)号：US20220118687A1
公开(公告)日：2022-04-21
申请号：US17564205
申请日：2021-12-28
Applicant: Zhejiang University
IPC: B29C64/124 , B29C64/245 , B29C64/241 , B33Y10/00 , B29C64/209
Abstract: The present invention provides a 3D printing method for a complex curved hollow structure. The 3D printing method comprises the following steps: firstly, manufacturing a bottom die attached with the complex curved hollow structure, and molding the complex curved hollow structure on a molding surface C of the bottom die by taking the bottom die as a support, wherein the molding of the bottom die and the molding of the complex curved hollow structure are completed in the same world coordinate system, and the bottom die does not need to be taken down from an objective table and then transplanted into a printing system of a to-be-molded part. The 3D printing method has the advantage that a high-precision complex curved hollow structure can be manufactured.
-
公开(公告)号：US12097656B2
公开(公告)日：2024-09-24
申请号：US17564205
申请日：2021-12-28
Applicant: Zhejiang University
IPC: B29C64/124 , B29C64/209 , B29C64/241 , B29C64/245 , B33Y10/00 , B29L11/00
CPC classification number: B29C64/124 , B29C64/209 , B29C64/241 , B29C64/245 , B33Y10/00 , B29L2011/0008
Abstract: The present invention provides a 3D printing method for a complex curved hollow structure. The 3D printing method comprises the following steps: firstly, manufacturing a bottom die attached with the complex curved hollow structure, and molding the complex curved hollow structure on a molding surface C of the bottom die by taking the bottom die as a support, wherein the molding of the bottom die and the molding of the complex curved hollow structure are completed in the same world coordinate system, and the bottom die does not need to be taken down from an objective table and then transplanted into a printing system of a to-be-molded part. The 3D printing method has the advantage that a high-precision complex curved hollow structure can be manufactured.
-
-
-
-
-
Search Results
6
records
(took 0.017 seconds)
