-
1.发明申请公开(公告)号：US20250025967A1
公开(公告)日：2025-01-23
申请号：US18598802
申请日：2024-03-07
Applicant: North University of China
Inventor： Bin LIU , Wei CHEN , Zhen ZHANG , Zhonghua LI , Peikang BAI
Abstract: A device for controlling quality of wire arc additive forming through feedback of acoustic emission comprises a wire arc additive system, an acoustic emission acquisition and identification system, and a feedback control system. The wire arc additive system is configured for forming solid parts by a wire arc additive process. The acoustic emission acquisition and identification system is configured for monitoring the wire arc additive process online and analyzing types and sizes of any resulting defects. The feedback control system is configured for analyzing monitored results and providing timely feedback to the wire arc additive system via a PID circuit. When the resulting defects are small, the types and sizes of defects are analyzed, and an instruction of correcting process parameters is sent to the wire arc additive system. When the resulting defects are too large to be remedied, a shutdown instruction is sent to the wire arc additive system.
-
2.发明申请公开(公告)号：US20250007218A1
公开(公告)日：2025-01-02
申请号：US18755145
申请日：2024-06-26
Applicant: North University of China
Inventor： Qiulin TAN , Helei DONG , Junqi PANG , Hua REN , Lei ZHANG , Wenyi LIU , Jijun XIONG
IPC: H01R13/646 , H01R31/00 , H01R31/06 , H04B1/00
Abstract: The application belongs to the technical field of signal acquisition, and discloses a stacked large-capacity signal acquisition and transmission system, which includes an adapter board, n acquisition boards, central control boards and a communication board sequentially laminated; where a circuit structure of each of the acquisition boards is the same; the adapter board is provided with circuit board interfaces and a plurality of first board-level connectors; an m-th acquisition board is provided with a signal acquisition and conditioning module, at least n-m+1 second board-level connectors and at least m third board-level connectors; the central control board is provided with a signal conversion module, at least one fourth board-level connector and at least one fifth board-level connector.
-
公开(公告)号：US20250003365A1
公开(公告)日：2025-01-02
申请号：US18703928
申请日：2021-12-16
Applicant: NORTH UNIVERSITY OF CHINA
Inventor： Tiehua MA , Boren YAO , Kun ZHANG , Changxin CHEN , Yaoyan WU , Chuanmeng SUN , Bin JIAO , Yu WANG , Na FENG
Abstract: The present invention relates to the technical field of hydrogen fuel power generation, specifically a hydrogen fuel high-speed rotating magnetohydrodynamic power generation device. The device comprises a shaft portion, a cover plate portion, a thin plate portion and a combustion propelling portion. The device craftily utilizes hydrogen electrochemical reaction and direct combustion of unionized hydrogen to complete the hydrogen catalytic ionization reaction while providing jet thrust for rotation. Advantages are that it is more efficient than hydrogen fuel cells, has high power density, which is suitable for high-power and high-energy power needs, utilizes no key special components and does not require auxiliary systems such as heat dissipation, breaking limitations of proton exchange membrane on hydrogen fuel cells and low efficiency of a Carnot cycle on hydrogen internal combustion engines.
-
4.发明授权公开(公告)号：US12184009B1
公开(公告)日：2024-12-31
申请号：US18755145
申请日：2024-06-26
Applicant: North University of China
Inventor： Qiulin Tan , Helei Dong , Junqi Pang , Hua Ren , Lei Zhang , Wenyi Liu , Jijun Xiong
IPC: H01R31/06 , H01R13/646 , H01R31/00 , H04B1/00
Abstract: The application belongs to the technical field of signal acquisition, and discloses a stacked large-capacity signal acquisition and transmission system, which includes an adapter board, n acquisition boards, central control boards and a communication board sequentially laminated; where a circuit structure of each of the acquisition boards is the same; the adapter board is provided with circuit board interfaces and a plurality of first board-level connectors; an m-th acquisition board is provided with a signal acquisition and conditioning module, at least n−m+1 second board-level connectors and at least m third board-level connectors; the central control board is provided with a signal conversion module, at least one fourth board-level connector and at least one fifth board-level connector.
-
公开(公告)号：US12072231B1
公开(公告)日：2024-08-27
申请号：US18418520
申请日：2024-01-22
Applicant: North University of China
Inventor： Xiaorui Liang , Qiulin Tan , Shuang Li , Dan Hu
CPC classification number: G01H11/08 , G01K7/02 , G01K11/265
Abstract: An apparatus and method for real-time in-situ simultaneous measurement of temperature and mechanical parameters can include a charge type vibration sensing module having a temperature compensation function and a temperature/vibration coplanarly-integrated wireless surface acoustic wave (SAW) sensing module are controlled by a processing module in which a full-range temperature-vibration composite parameter compensation decoupling method is implanted, which can detect a vibration signal in a variable temperature environment. Moreover, temperature and vibration multi-parameter testing of static components in a high-temperature, narrow and closed environment can be implemented by arranging the charge type vibration sensing module having a temperature compensation function, and the temperature/vibration coplanarly-integrated wireless SAW sensing module implements health monitoring of moving components in a high-temperature and high-rotation environment.
-
Patent Agency Ranking
公开(公告)号：US11970427B2
公开(公告)日：2024-04-30
申请号：US18499910
申请日：2023-11-01
Inventor： Yaqing Liu , Chaoyang Wu , Guizhe Zhao
Abstract: This disclosure relates to slow- and controlled-release fertilizers (S-CRF), and more particularly to a microelement amino acid chelate-urea formaldehyde (UF) slow-release fertilizer and a method for preparing the same by reactive extrusion. The microelement amino acid chelate-UF slow-release fertilizer includes a biodegradable UF polymer and a microelement amino acid chelate. The macromolecular chains of the biodegradable UF polymer interpenetrate in the cross-linked network structure of the chelate, so as to form a polymer composite with a semi-interpenetrating network structure.
-
公开(公告)号：US11796351B2
公开(公告)日：2023-10-24
申请号：US17821673
申请日：2022-08-23
Applicant: North University of China
Inventor： Pinggang Jia , Jijun Xiong , Qianyu Ren , Jia Liu , Guowen An , Wenyi Liu
IPC: G01D5/353
CPC classification number: G01D5/35312 , G01D5/35306
Abstract: Some embodiments of the disclosure provide a demodulation system for obtaining phase change parameters by a fiber-optic Fabry Perot sensor. In an embodiment, the demodulation system includes a transmitting module, a fiber-optic Fabry Perot sensor, a light splitting module, a filter module, a receiving module, and a processing module. The transmitting module transmits a beam with a predetermined wavelength range. The fiber-optic Fabry Perot sensor receives the beam and forms a reflected light beam. The light splitting module is arranged between the transmitting module and the fiber-optic Fabry Perot sensor. The filter module obtains the first light beam, the second light beam, and the third light beam. The filter module has a broadband filter. The receiving module receives the first light beam, the second light beam, and the third light beam and converts them into the first signal, the second signal, and the third signal.
-
公开(公告)号：US11789005B2
公开(公告)日：2023-10-17
申请号：US17581918
申请日：2022-01-22
Inventor： Yaqing Liu , Taian Chen , Yang Xiang , Guizhe Zhao
CPC classification number: G01N33/442 , C12M1/00 , C12M1/02 , C12M1/04 , C12M1/12 , G01N1/24 , G01N1/38
Abstract: A device for determining degradation rate of biodegradable polymers in soil, including a micro compressed air pump, a first CO2 absorption vessel filled with dry soda lime or an aqueous strong alkali solution, a CO2 indicator vessel filled with a barium hydroxide solution, a hollow leaching device, a second CO2 absorption vessel and a third CO2 absorption vessel connected in sequence through connecting pipes. A top of the hollow leaching device is provided with an end cover. An external water distributor filled with a leaching solution and a mechanical stirring device is arranged above the end cover. The external water distributor is in communication with an inner cavity of the hollow leaching device through a pipeline. A stirring shaft of the mechanical stirring device extends into the inner cavity. A stirring shaft is provided with a stirring paddle.
-
9.发明公开公开(公告)号：US20230321710A1
公开(公告)日：2023-10-12
申请号：US17944218
申请日：2022-09-14
Applicant: North University of China
Inventor： Zhimin Zhang , Jianmin Yu , Zhen Wang , Zhe Cheng , Mei Cheng
CPC classification number: B21D22/022 , C22F1/06
Abstract: The present disclosure discloses a method for preparing large-size rare earth magnesium alloy with high-performance ingots by short process severe plastic deformation. When in use, the pushing cylinder moves upward, and the back pressure plate is adjusted to the outlet of the extrusion deformation area. After the male mold stroke is completed, the recoverable discard block fills the extrusion deformation area, and the upsetting extrusion deformation is completed. Then, the pushing cylinder drives the back pressure plate to remove from the lower part of the lower mold cavity downward, and the recoverable discard block has been broken due to the high pressure. Then, the extruded blank and residual block powder are taken out from the lower part of the lower mold cavity, restored into a plate shape for the next use. The present disclosure can solve the tail shrinking phenomenon, save materials and increase the strengthening effect.
-
公开(公告)号：US20230321620A1
公开(公告)日：2023-10-12
申请号：US18327801
申请日：2023-06-01
Inventor： Yaqing LIU , Guizhe ZHAO , Xu LI
IPC: B01J2/06
CPC classification number: B01J2/06
Abstract: A method for preparing a graphene-containing ultra-fine powdered natural rubber masterbatch, including: mixing a diluted graphene oxide dispersion with an anionic surfactant to obtain a modified graphene oxide dispersion; mixing the modified graphene oxide dispersion with a natural rubber latex suspension to obtain a mixed emulsion; and subjecting the mixed emulsion to spray drying to obtain the ultra-fine powdered natural rubber masterbatch with a particle size of less than 5 μm. This application further provides a method for preparing a graphene-modified natural rubber nanocomposite, including: mixing the ultra-fine powdered natural rubber masterbatch with natural rubber block, and carbon black.
-
-
-
-
-
-
-
-
-
Search Results
106
records
(took 0.023 seconds)
