公开(公告)号：US20250043761A1

公开(公告)日：2025-02-06

申请号：US18419110

申请日：2024-01-22

Applicant: Ningbo University

Inventor： Rongyue Zheng ,  Zesong Yang ,  DAVID ZHIWEI ZHU

IPC: F03B3/04 ,  F03B11/00 ,  H02K7/18

Abstract: A water transportation pipe power generation device with flow-regulating and pressure-regulating function is provided comprising a tubular power generator housing, a stator component fixedly inside and a tubular rotor component coaxially disposed inside the stator component. The stator component comprises fixed coil windings uniformly distributed on an outer circumferential surface of the rotor component and an adjustable coil winding capable of performing axial movement along the rotor component and adjusting an axial position to change a magnetic flux. The rotor component comprises a tubular rotor housing for a water flow to run through. Multiple spirally-distributed rotor blades are disposed on an inner circumferential surface of the rotor housing, and permanent magnet groups in sensing cooperation with the fixed coil windings and the adjustable coil winding are disposed on an outer circumferential surface of the rotor housing. The rotor component can coaxially rotate for power generation relative to the stator component.

公开(公告)号：US12119215B1

公开(公告)日：2024-10-15

申请号：US18035331

申请日：2022-05-18

Applicant: NINGBO UNIVERSITY

Inventor： Fu-Xing Xu ,  Li Ding

IPC: H01J49/42

CPC classification number: H01J49/4245

Abstract: The invention relates to an electrostatic ion trap having a central axis and a central symmetrical plane perpendicular to the central axis. The electrostatic ion trap comprises an inner electrode group arranged along the central axis and a pair of outer electrode groups arranged on two sides of the central symmetry plane along the central axis. Each outer electrode group comprises a plurality of electrode plates. The plurality of electrode plates are circumferentially distributed around a periphery of the inner electrode group and centered on the central axis. At least two electrode plates in the same outer electrode group are electrically connected. A potential difference is formed when voltages are respectively applied to the inner electrode group and the outer electrode groups, thereby forming a space for trapping ions between the inner electrode group and the outer electrode groups.

公开(公告)号：US20230313247A1

公开(公告)日：2023-10-05

申请号：US18127674

申请日：2023-03-29

Applicant: Ningbo University

Inventor： Lijian DING ,  Shan HE ,  Wenhao LI ,  Weiyan ZHANG ,  Yingying WEI

IPC: C12P17/08 ,  C07D321/00

CPC classification number: C12P17/08 ,  C07D321/00

Abstract: An antimycin compound and a preparation method and use thereof are provided. The preparation method comprises: fermenting a marine actinomycete (Steptomyces sp.4-7) with a preservation number CCTCCNO: M2020953 to obtain a fermented product and soaking and extracting the fermented product with ethyl acetate to obtain a crude extract; and carrying out separation and purification by normal-phase silica gel column chromatography, reversed-phase MPLC, and semi-preparative reversed-phase high-performance liquid chromatography. The antimycin compound has the advantages of resistance against Botrytis cinerea and Penicillium citrinum.

公开(公告)号：US11749110B2

公开(公告)日：2023-09-05

申请号：US18152197

申请日：2023-01-10

Applicant: Ningbo University of Technology

Inventor： Yan Wan ,  Feifei Xu ,  Sheng Dong ,  Honghua Xu ,  Qinzheng Liu ,  Yikang Fan ,  Weijia Wu ,  Rui Li ,  Yangzheng Lin ,  Haotian Zheng

IPC: G08G1/14 ,  G08G1/065

CPC classification number: G08G1/148 ,  G08G1/065 ,  G08G1/147

Abstract: Disclosed are a virtual parking space establishment system and a method. The virtual parking space establishment system includes a data acquiring module, a data processing module, a parking space control module, a wireless communication module and a client; the data acquiring module is used for acquiring traffic flow data; the data processing module is used for processing and analyzing the traffic flow data; the parking space control module is used for establishing or canceling virtual parking spaces according to analysis results of the traffic flow data; the wireless communication module is used for providing a wireless network link between the client and the parking space control module; the client is used for viewing virtual parking space information.

公开(公告)号：US20220402768A1

公开(公告)日：2022-12-22

申请号：US17756100

申请日：2020-08-24

Applicant: NINGBO UNIVERSITY OF TECHNOLOGY

Inventor： Weiyou YANG ,  Dongdong ZHANG ,  Hao YU

IPC: C01G1/00 ,  B82Y40/00

Abstract: A method for preparing a γ-Ga2O3 nanomaterial, comprising a step of treating a mixture comprising a gallium element, water, and an organic solvent with ultrasound. The preparation process and equipment requirements are simple, the cost of materials is low, there are fewer experimental parameters, and experimental conditions are mild, with no additional heat source and/or pressure being applied. The γ-Ga2O3 nanomaterial can be prepared, in kilograms or above, quickly at an ambient temperature and pressure.

公开(公告)号：US11530156B2

公开(公告)日：2022-12-20

申请号：US16863652

申请日：2020-04-30

Applicant: Ningbo University

Inventor： Xunsi Wang ,  Youren Dong ,  Shixun Dai ,  Qiuhua Nie ,  Xiange Wang ,  Minghui Zhong ,  Rongping Wang ,  Xiang Shen ,  Zijun Liu ,  Yongxing Liu

IPC: C03B37/012 ,  C03B37/10 ,  C03C3/32 ,  C03C3/12 ,  C03C3/253 ,  C03C3/23

Abstract: A method for preparing all-solid-state photonic crystal fiber preform by extrusion by aligning the center of the first jacking end of the first jacking rod with the center of the core outlet mold. The adverse effect on this part of extruded core glass by oxygen or other impurities in air during the extrusion out of the core outlets can be avoided. The defects on the core glass surface and the cladding glass surface can be effectively removed, and the purity and quality of the core component in the obtained fiber preform can be improved.

公开(公告)号：US11476405B2

公开(公告)日：2022-10-18

申请号：US16925147

申请日：2020-07-09

Applicant: Ningbo University

Inventor： Junhua Li ,  Sicong He

IPC: G06F3/02 ,  H01L41/053 ,  H01L41/113 ,  H01L41/187 ,  G01L1/16

Abstract: A reusable piezoelectric sensor for damage identification includes a piezoelectric ceramic plate and a metal box bonded to the surface of a test piece, where a wire through hole is formed in the center of a top plate of the metal box, and a side wall of the metal box extends vertically upwards to form a striking face for being struck to remove the metal box from the test piece; the piezoelectric ceramic plate arranged in the metal box is closely and fixedly bonded to a bottom plate of the metal box; and wires of the piezoelectric ceramic plate penetrate through the wire through hole to be connected to an external impedance analyzer. The reusable piezoelectric sensor for damage identification is easy to manufacture and convenient to operate and can effectively eliminate the testing error caused by the difference of the piezoelectric ceramic plate.

公开(公告)号：US11230817B2

公开(公告)日：2022-01-25

申请号：US17036810

申请日：2020-09-29

Applicant: Ningbo University ,  Fujian Geological Engineering Survey Institute

Inventor： Changguang Qi ,  Zhichao Zhang ,  Jinjing Pan ,  Kan Liu ,  Longzhen Ye ,  You Gao

IPC: E02D3/12 ,  F16H21/44 ,  G01W1/14

Abstract: The present invention discloses a rainfall sensing two-component high-polymer grouting device and a manufacturing method therefor, and belongs to the technical field of soil protection. The present invention includes an iron box and a water bucket. The water bucket is slidably fitted in the iron box. An inner bottom of the iron box is provided with a pair of lever upturning apparatuses symmetrically distributed about an axis center of the iron box. A lower surface of the iron box is provided with a curing agent ejector and a resin ejector. An end of two lever upturning apparatuses is slidably connected to a low surface of the water bucket. The switches of the curing agent ejector and the resin ejector are respectively connected to the other end of a lever upturning apparatus. A peripheral surface of the water bucket is provided with a permeable hole, and a permeable head is installed on the permeable hole. The present invention utilizes the lever principle of natural gravity and the spring-assisted method to realize the function of high-polymer grouting slope protection, and belongs to an ingenious mechanical structure apparatus. There is no need to stimulate and excite from the external energy, which is environmentally friendly and does not waste the resources and energy.

公开(公告)号：US11011365B2

公开(公告)日：2021-05-18

申请号：US16286574

申请日：2019-02-26

Applicant: NINGBO UNIVERSITY ,  CHINA INNOVATION INSTRUMENT CO., LTD.

Inventor： Luhong Wen ,  Peng Zhao ,  Ruiqiang Chen ,  Huanhuan Hong ,  Feng Zhou

IPC: H01J49/04 ,  H01J49/42 ,  G01N27/64 ,  H01J49/06 ,  G01N33/543

Abstract: A mass spectrometry system and a working method and an application thereof, and a sampling device. The mass spectrometry system includes an ion source, a sampling device and a mass spectrometer. The sampling device includes: a guide rail; a support adapted to move on the guide rail; a bearing member made from a hydrophobic material with two ends being fixed to the support; a plurality of containers for containing samples arranged on the support; a plurality of transport members made from a hydrophilic material and including a first portion provided on the bearing member and a second portion connected to the first portion and extending into each container; adjacent transport members being not in contact; and a drive module configured to drive the support to move on the guide rail such that a central axis of an exit port of the ion source passes through the first portion.

公开(公告)号：US10924118B1

公开(公告)日：2021-02-16

申请号：US17078100

申请日：2020-10-23

Applicant: Ningbo University

Inventor： Pengjun Wang ,  Shunxin Ye ,  Yuejun Zhang ,  Huihong Zhang ,  Xiaotian Zhang

IPC: H03K19/21 ,  G06F7/501 ,  H03K19/003 ,  H03K19/017

Abstract: A positive feedback XOR/XNOR gate and a low-delay hybrid logic adder are provided. The low-delay hybrid logic adder comprises the positive feedback XOR/XNOR gate and an output circuit. The positive feedback XOR/XNOR gate comprises a first PMOS transistor and a second PMOS transistor used as pass transistors, a first NMOS transistor and a second NMOS transistor constituting a pull-down network, and a third PMOS transistor, a third NMOS transistor and a fourth NMOS transistor constituting a positive feedback loop. When an XOR logic output terminal of the positive feedback XOR/XNOR gate is pulled down below a switching threshold of an inverter formed by the third PMOS transistor and the fourth NMOS transistor, the positive feedback loop starts to operate to enable the XOR logic output terminal of the positive feedback XOR/XNOR gate to enter a pull-down phase to be pulled down to a low level to avoid threshold voltage losses.