Patents by Inventor Jianfei Zhang
Jianfei Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20250054725Abstract: Provided are an in-situ mechanical micro-electro-mechanical device and system, as well as a double-tilt sample holder. A first displacement member is arranged in a first hollow-out cavity of a base through a first mechanical measurement assembly, extends to a third hollow-out cavity of the base, and is provided with a first sample carrying portion at an extending end thereof. A second displacement member is arranged in a second hollow-out cavity of the base through a second mechanical measurement assembly, extends to the third hollow-out cavity, and is provided with a second sample carrying portion at an extending end thereof. The second sample carrying portion is nested with the first sample carrying portion. One of the first displacement member and the second displacement member is fixedly arranged, and the other of the first displacement member and the second displacement member is connected to a driving component.Type: ApplicationFiled: August 5, 2024Publication date: February 13, 2025Inventors: Xiaodong HAN, Jiabao ZHANG, Jianfei ZHANG, Xudong YANG
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Patent number: 12196456Abstract: A cyclical salinity-gradient power generating system based on phase change materials and solar photothermal conversion is provided. The system comprises a solution supplying device, a power generating device and a power output device. The solution supplying device provides seawater with high and low concentration as salinity-gradient energy source of the power generating device; the power generating device implements day-and-night cyclical salinity-gradient power generation; the power output device stores electricity, part of which is used as providing power for the pumps inside the system and part of which is used as system output. A cyclical salinity-gradient power generating method based on phase change materials and solar photothermal conversion is also provided.Type: GrantFiled: June 24, 2022Date of Patent: January 14, 2025Assignee: XI'AN JIAOTONG UNIVERSITYInventors: Zhiguo Qu, Jiaqi Pu, Zhiyuan Jiang, Jianfei Zhang
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Publication number: 20240066471Abstract: Disclosed are a hybrid system and method of waste heat utilization-based photovoltaic power generation and seawater desalination, wherein a photovoltaic power generation unit includes a linear Fresnel lens, a beam-splitting cooling tube, a solar cell, and a heat collecting tube; a seawater supply unit includes a seawater storage tank and a pre-treatment storage tank; a heat storage and temperature control unit includes a phase-change heat reservoir and heat exchangers; an electrodialysis unit includes poles, an ion-selective membrane, a desalination chamber, a concentration chamber, pole chambers, a concentrated liquid storage tank and a desalinated liquid storage tank; and an electricity storage and control unit includes a battery pack and a circuit controller. Incident sunlight achieves photovoltaic power generation by a light condensation followed by beam splitting mode; nanoparticle doped seawater absorbs long-wavelength light and transmits short-wavelength light.Type: ApplicationFiled: May 5, 2023Publication date: February 29, 2024Inventors: Zhiguo QU, Qiang WANG, Jianfei ZHANG
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Publication number: 20240035809Abstract: A digital speckle based online water wall stress monitoring method and device, and the method includes the following steps: arrange an online stress monitoring device on the side of the water wall to be monitored; determine a plurality of monitoring points according to the area of the water wall, and set the motion track of the online stress monitoring device for speckle image acquisition according to the determined monitoring points; acquire the real-time speckle image of each monitoring point in real time after acquiring the initial speckle image of each monitoring point; compare the real-time speckle images with the initial speckle images, and determine whether the stress of the water wall changes according to the comparison results. The invention adopts non-contact digital image technology, and determines the difference between the real-time and initial speckle images of the water wall to realize the stress monitoring.Type: ApplicationFiled: June 29, 2023Publication date: February 1, 2024Inventors: Feng Chen, Linfang Shao, Zhenghua Shen, Bin Jiang, Laichun Li, Wei Xiong, Shenglin Pang, Yin Huang, Xiaoyan Li, Peiqiang Bai, Ming Zhao, Jianjiang Chen, Jianfei Zhang, Peng Lei, Chao Yu, Yanhua Chen
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Publication number: 20230367701Abstract: The present specification discloses a code testing method and apparatus. The code testing method includes: determining, for each object under test, all member variables corresponding to the object under test and a variable calling statement corresponding to each member variable, and constructing an operation calling statement sequence based on a calling order corresponding to operations under test included in the object under test; constructing an initial test case corresponding to the object under test based on the variable calling statements and the operation calling statement sequence, each initial test case corresponding to only one object under test; and determining a target test case based on each initial test case, and testing to-be-tested code by using the target test case.Type: ApplicationFiled: May 9, 2023Publication date: November 16, 2023Inventors: Jianfei ZHANG, Hailian ZHOU, Zhiquan ZHOU, Hongbing ZHAO
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Publication number: 20230175740Abstract: A cyclical salinity-gradient power generating system based on phase change materials and solar photothermal conversion is provided. The system comprises a solution supplying device, a power generating device and a power output device. The solution supplying device provides seawater with high and low concentration as salinity-gradient energy source of the power generating device; the power generating device implements day-and-night cyclical salinity-gradient power generation; the power output device stores electricity, part of which is used as providing power for the pumps inside the system and part of which is used as system output. A cyclical salinity-gradient power generating method based on phase change materials and solar photothermal conversion is also provided.Type: ApplicationFiled: June 24, 2022Publication date: June 8, 2023Inventors: Zhiguo QU, Jiaqi PU, Zhiyuan JIANG, Jianfei ZHANG
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Publication number: 20220401558Abstract: Provided herein is a nanopore structure, which in one aspect is a “carbon nanotube porin”, that comprises a short nanotube with an associated lipid coating. Also disclosed are compositions and methods enabling the preparation of such nanotube/lipid complexes. Further disclosed is a method for therapeutics delivery that involves a drug delivery agent comprising a liposome with a NT loaded with a therapeutic agent, introducing the therapeutic agent into a cell or a tissue or an organism; and subsequent release of the therapeutic agents into a cell.Type: ApplicationFiled: August 17, 2022Publication date: December 22, 2022Inventors: Aleksandr Noy, Jia Geng, Jianfei Zhang, Vadim Frolov
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Patent number: 11448737Abstract: A miniature solid-state laser radar and a data processing method therefor. The miniature solid-state laser radar includes a laser emitter (1), an imaging lens (2), an imaging sensor (3), and a control and data processing apparatus (4). The laser emitter (1) is used to emit linear laser; the imaging lens (2) is used to collect reflected laser light and image same on the imaging sensor (3); the imaging sensor (3) receives light focused through the imaging lens and images the same; and the control and data processing apparatus (4) is used to control working of the laser emitter (1), receive imaging data from the imaging sensor (3), run a structural light algorithm, and finally acquire point cloud data in a space environment.Type: GrantFiled: September 23, 2021Date of Patent: September 20, 2022Inventors: Qiang Wang, Jianfei Zhang, Huan Wang
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Patent number: 11439708Abstract: Provided herein is a nanopore structure, which in one aspect is a “carbon nanotube porin”, that comprises a short nanotube with an associated lipid coating. Also disclosed are compositions and methods enabling the preparation of such nanotube/lipid complexes. Further disclosed is a method for therapeutics delivery that involves a drug delivery agent comprising a liposome with a NT loaded with a therapeutic agent, introducing the therapeutic agent into a cell or a tissue or an organism; and subsequent release of the therapeutic agents into a cell.Type: GrantFiled: October 5, 2015Date of Patent: September 13, 2022Assignees: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA, UNIVERSIDAD DEL PAÍS VASCOInventors: Aleksandr Noy, Jia Geng, Jianfei Zhang, Vadim Frolov
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Patent number: 11327165Abstract: The present invention provides an apparatus and a method for ranging, following and positioning of a mobile device. The apparatus includes an emitting unit, a receiving unit, and a computing unit. The emitting unit and the receiving unit are connected to the computing unit. The emitting unit is configured to emit a centimeter wave to an object to be followed. The receiving unit is configured to receive the centimeter wave. The computing unit is configured to calculate a distance between the mobile device and the object to be followed according to a time difference between emission of the centimeter wave and reception of the centimeter wave, and further calculate a movement distance according to the distance and a threshold distance difference. The present invention can be made waterproof and oil resistant. Compared with the technology using laser, the present invention better prevents measurement failure caused by permeability of the medium.Type: GrantFiled: January 20, 2016Date of Patent: May 10, 2022Assignee: COWA ROBOTIC CO., LTD.Inventors: Qiang Wang, Gangzhi He, Tao He, Wenlong Liao, Jianfei Zhang, Liyuan Liu, Lei Zhao
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Publication number: 20220119285Abstract: The present disclosure discloses a system and a method for solar-driven photothermal seawater desalination and ion electroosmosis power generation. In the system, a first reservoir is provided with a first electrode immersed in seawater; a second reservoir is connected to the first reservoir via a cation selective nanofilm; a third reservoir is provided with a second electrode immersed in seawater, and the third reservoir is connected to the second reservoir via an anion selective nanofilm; and an adjustable sun-visor shields the cation selective nanofilm to form a first preset part of solar illumination and shields the anion selective nanofilm to form a second preset part of the solar illumination. Therefore, the cation selective nanofilm and the anion selective nanofilm are each under an asymmetric illumination to generate a temperature gradient.Type: ApplicationFiled: September 27, 2021Publication date: April 21, 2022Applicant: Xi'an Jiaotong UniversityInventors: Zhiguo QU, Qian LIU, Jianfei ZHANG, Qinlong REN
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Publication number: 20220011405Abstract: A miniature solid-state laser radar and a data processing method therefor. The miniature solid-state laser radar includes a laser emitter (1), an imaging lens (2), an imaging sensor (3), and a control and data processing apparatus (4). The laser emitter (1) is used to emit linear laser; the imaging lens (2) is used to collect reflected laser light and image same on the imaging sensor (3); the imaging sensor (3) receives light focused through the imaging lens and images the same; and the control and data processing apparatus (4) is used to control working of the laser emitter (1), receive imaging data from the imaging sensor (3), run a structural light algorithm, and finally acquire point cloud data in a space environment.Type: ApplicationFiled: September 23, 2021Publication date: January 13, 2022Inventors: Qiang WANG, Jianfei ZHANG, Huan WANG
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Patent number: 11221412Abstract: The present disclosure provides an eye-safe laser triangulation measurement system, including a laser transmitter, an optical projection apparatus, a laser beam capturing unit, a cooperation unit, and an image processing apparatus. The laser transmitter is configured to generate point pulse laser of a pulse laser beam. The optical projection apparatus is disposed at a front end of the laser transmitter, and is configured to convert the point pulse laser into a line laser. The laser beam capturing unit is configured to capture reflected light obtained by the line laser at a target position to obtain a laser image. The cooperation unit is configured to control on and off of the laser transmitter, and control capture of the laser beam capturing unit. The image processing apparatus is configured to perform 3D modeling on the laser image to obtain a distance to the target position.Type: GrantFiled: April 24, 2017Date of Patent: January 11, 2022Assignee: ANHUI COWAROBOT CO., LTD.Inventors: Qiang Wang, Runxi Zhang, Tao He, Wenlong Liao, Jianfei Zhang, Lei Zhao, Ding Huang, Liyuan Liu
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Publication number: 20210387199Abstract: A water bath device for tomographically plastinated specimens and a water bath hardening method thereof comprises a water bath box, a control box, heating tubes, a water circulation assembly and positioning grids. The heating tubes are provided inside the water bath box. The water circulation assembly comprises a water circulation pipeline, a circulating water pump and a drain outlet. The two sides of the inner walls of the water bath box are provided with positioning grids opposite each other. After infiltration, a vertical embedding box is inserted between the positioning grids in the water bath box, and a tomographically plastinated specimen is hardened by water bathing. The equipment is simple and the temperature is easily controlled The excess heat can be quickly transferred to the water as well to ensure a stable temperature during the hardening process, which effectively avoids the occurrence of an explosive polymerization phenomenon.Type: ApplicationFiled: August 29, 2021Publication date: December 16, 2021Inventors: Hongjin Sui, Jianfei Zhang
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Publication number: 20210389217Abstract: A special vertical embedding box for tomographic plastination comprises two panels oppositely provided and a sealing part provided in the two panels. The two panels are fixed by fixing pieces, and the sealing part comprises vertical sealing strips and a horizontal sealing strip that are connected between the two panels in a fixed manner. The horizontal sealing strip is provided between the lower portions of the two vertical sealing strips, thus forming a flat vertical space with an open upper end and the other three sides sealed. The embedding box is placed vertically during use, so that liquid medicine will not be spilled out. Acetone will escape from the top of the embedding box in the form of air bubbles during an infiltration process, so that there is no need to add polymers twice before curing, thus reducing process steps and drug consumption.Type: ApplicationFiled: August 29, 2021Publication date: December 16, 2021Inventors: HONGJIN SUI, Jianfei Zhang
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Publication number: 20210171864Abstract: The invention relates to an environment-friendly soaping agent for dyeing cotton fabrics with reactive dyes and a preparation method and application thereof, belonging to the technical field of textiles. The invention provides a soaping agent which comprises the following raw materials in parts by weight: 1-9 parts of sophorolipid, 1-9 parts of anionic surfactant and 1-9 parts of soaping auxiliary, wherein the anionic surfactant is either sodium dodecyl benzene sulfonate or rhamnolipid. According to the invention, the combination of sophorolipid, anionic surfactant and soaping auxiliary can effectively improve the fastness to soaping and fastness to rubbing of fabrics; and meanwhile, the soaping agent is environment-friendly and biodegradable, and has a wide application prospect.Type: ApplicationFiled: February 17, 2021Publication date: June 10, 2021Inventors: ZHENG LI, JIA LIU, Fengyan LI, WENYU LU, JIXIAN GONG, JIANFEI ZHANG, QIUJIN LI
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Patent number: 10804070Abstract: The present invention relates to a deflection scanning device with a multi-phase winding and a deflection scanning system. The deflection scanning device is of an axisymmetric structure, and comprises a ferromagnetic frame and a deflection scanning winding, wherein the inner side of the ferromagnetic frame is longitudinally provided with 2aw wire slots equally distributed along the circumference; and the deflection scanning winding comprises a w-phase winding, wherein the axis of the each phase winding is symmetrically distributed. The deflection scanning system comprises a deflection scanning device, a drive power supply unit and, a central, control unit. The deflection scanning device of the present invention can improve the uniformity of the magnetic induction intensity in the charged particle beam channel, and then reduce the defocusing effect and improve the scanning accuracy.Type: GrantFiled: July 24, 2019Date of Patent: October 13, 2020Inventors: Xiaodong Huang, Shouqi Wei, Yujiang Qin, Guokun Zhu, Shuli Cai, Xiang Fei, Guohua Huang, Jianfei Zhang, Yinhong Qin
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Publication number: 20200020503Abstract: The present invention relates to a deflection scanning device with a multi-phase winding and a deflection scanning system. The deflection scanning device is of an axisymmetric structure, and comprises a ferromagnetic frame and a deflection scanning winding, wherein the inner side of the ferromagnetic frame is longitudinally provided with 2aw wire slots equally distributed along the circumference; and the deflection scanning winding comprises a w-phase winding, wherein the axis of the each phase winding is symmetrically distributed. The deflection scanning system comprises a deflection scanning device, a drive power supply unit and, a central, control unit. The deflection scanning device of the present invention can improve the uniformity of the magnetic induction intensity in the charged particle beam channel, and then reduce the defocusing effect and improve the scanning accuracy.Type: ApplicationFiled: July 24, 2019Publication date: January 16, 2020Inventors: Xiaodong Huang, Shouqi Wei, Yujiang Qin, Guokun Zhu, Shuli Cai, Xiang Fei, Guohua Huang, Jianfei Zhang, Yinhong Qin
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Patent number: 10410822Abstract: A double-tilt in-situ nanoindentation platform for TEM (transmission electron microscope) belongs to the field of in-situ characterization of the mechanical property-microstructure relationship of materials at the nano- and atomic scale. The platform is consisted of adhesive area, support beams, bearing beams, sample loading stage and mini indenter. The overall structure of the platform is prepared by semiconductor microfabrication technology. The in-situ nanoindentation experiment can be driven by bimetallic strip, V-shaped electro-thermal beam, piezoelectric ceramics, electrostatic comb or shape memory alloys et. al. The sample is obtained by focused ion beam cutting. The integrated platform can be placed in the narrow space on the front end of the TEM sample holder, giving rise to the condition of double-axis tilt. The driving device drives the mini indenter to carry out in-situ nanoindentation, in-situ compression and in-situ bending and the like of the materials in TEM.Type: GrantFiled: November 11, 2016Date of Patent: September 10, 2019Assignee: BEIJING UNIVERSITY OF TECHNOLOGYInventors: Xiaodong Han, Zhipeng Li, Shengcheng Mao, Xiaodong Wang, Chunqiang Zhuang, Jianfei Zhang, Qingsong Deng, Yadi Zhai, Taonan Zhang, Ze Zhang
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Patent number: D885969Type: GrantFiled: August 24, 2018Date of Patent: June 2, 2020Assignee: Vingbo Yinzhou Leiying International Trade Co., Ltd.Inventor: Jianfei Zhang