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公开(公告)号：US20220010094A1
公开(公告)日：2022-01-13
申请号：US17369129
申请日：2021-07-07
Applicant: Qingdao University of Technology
Inventor： Zuquan JIN , Shaochun LI , Yongjuan GENG , Dongshuai HOU , Anjie ZHOU , Jun LIU
IPC: C08K3/28 , C08K5/5419 , C08K5/41 , C08K3/38 , C04B26/04
Abstract: A nano-silver dispersion and a preparation method thereof is disclosed. The method, includes: mixing γ-aminopropyltriethoxysilane, polyvinylpyrrolidone, sodium lauryl sulfate, silver nitrate and water, and conducting a chelation, to obtain a chelating dispersion, wherein before the mixing, the γ-aminopropyltriethoxysilane is exposed to the air for less than 5 min; and dropwise adding a sodium borohydride solution into the chelating dispersion, to obtain a mixture, and subjecting the mixture to an oxidation-reduction reaction, to obtain the nano-silver dispersion.
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82.发明授权公开(公告)号：US11215719B2
公开(公告)日：2022-01-04
申请号：US17211891
申请日：2021-03-25
Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY
Inventor： Wenfeng Liu , Zheng Zhou , Jianfeng Li
Abstract: A performance-level seismic motion hazard analysis method includes: (1) extracting seismic motion data and denoising the data; (2) extracting feature parameters from the data, and carrying out initialization; (3) generating a training set, an interval set and a test set; (4) training a multi-layer neural network based on the training set; (5) training output values of the neural network based on the interval set, and calculating a mean and a standard deviation of relative errors of the output values; (6) training the neural network based on the test set to determine output values, and calculating a magnitude interval based on an interval confidence; (7) carrying out probabilistic seismic hazard analysis to determine an annual exceeding probability and a return period of a performance-level seismic motion; and (8) determining a magnitude and an epicentral distance that reach the performance-level seismic motion based on the performance-level seismic motion and consistent probability.
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83.发明申请公开(公告)号：US20210407708A1
公开(公告)日：2021-12-30
申请号：US16771392
申请日：2020-01-17
Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY , QINGDAO 5D INTELLIGENT ADDITIVE MANUFACTURING TECHNOLOGY CO., LTD.
Inventor： Hongbo LAN , Xiaoyang ZHU , Quan XU , Jiawei ZHAO , Mingyang LIU
Abstract: A manufacturing method of an embedded metal mesh flexible transparent electrode and application thereof; the method includes: directly printing a metal mesh transparent electrode on a rigid substrate by using an electric-field-driven jet deposition micro-nano 3D printing technology; performing conductive treatment on a printed metal mesh structure through a sintering process to realize conductivity of the metal mesh; respectively heating a flexible transparent substrate and the rigid substrate to set temperatures; completely embedding the metal mesh structure on the rigid substrate into the flexible transparent substrate through a thermal imprinting process; and separating the metal mesh completely embedded into the flexible transparent substrate from the rigid substrate to obtain the embedded metal mesh flexible transparent electrode. The mass production of the large-size embedded metal mesh flexible transparent electrode with low cost and high throughput by combining the electric-field-driven jet deposition micro-nano 3D printing technology with the roll-to-plane thermal imprinting technology.
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公开(公告)号：US20210401025A1
公开(公告)日：2021-12-30
申请号：US16959607
申请日：2019-10-29
Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY , XINJIANG JIANG NING LIGHT INDUSTRIAL MACHINERY ENGINEERING TECHNOLOGY CO., LTD.
Inventor： Changhe LI , Mingcun SHI , Yiping FENG , Yitian FENG , Zhenming JIA , Leilei ZHAO , Rong WANG , Yucheng WANG , Yanbin ZHANG , Ji CHE , Runze LI , Cai WANG , Min YANG , Yali HOU
IPC: A23N5/00
Abstract: A multi-station adaptive walnut shell pre-breaking system, including a feeding device and a shell pre-breaking device. The feeding device includes a feeding box, a single-helix twister and a double-helix twister are disposed in the feeding box, the single-helix twister and the double-helix twister rotate in opposite directions, and an adjustable spring partition is disposed below the single-helix twister and the double-helix twister; the shell pre-breaking device includes a shell pre-breaking box, a plurality of squeezing stations are provided in the shell pre-breaking box, each of the squeezing stations is provided with a shell pre-breaking assembly, the shell pre-breaking assembly includes a falling U-shaped plate and a squeezing U-shaped plate.
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公开(公告)号：US11169136B2
公开(公告)日：2021-11-09
申请号：US17049194
申请日：2019-11-25
Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY
Inventor： Fanxiu Chen , Bin Zhang , Pengfei Guo , Zuquan Jin
Abstract: A method for measuring corrosion-expansion force during cracking of concrete due to corrosion and expansion of reinforcing steel; wherein, deformation on a surface of reinforced concrete is photographed based on a digital image correlation (DIC) method, a full-field displacement and a full-field strain on a surface of the concrete are analyzed and calculated, a relationship between corrosion-expansion force and the strain on the surface of the concrete is found through an established theoretical model, and corrosion-expansion force of reinforcing steel and a change rule of the corrosion-expansion force are calculated. Therefore, the method is simple and includes with safe and reliable operations, scientific principles, and low costs, so that a change in corrosion-expansion force during corrosion and expansion of reinforced concrete can be monitored in real time.
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Patent Agency Ranking
公开(公告)号：US20210339426A1
公开(公告)日：2021-11-04
申请号：US17281895
申请日：2019-10-30
Inventor： Changhe LI , Baoteng HUANG , Han ZHAI , Bingheng LU , Huajun CAO , Zhen WANG , Naiqing ZHANG , Min YANG , Yanbin ZHANG , Yali HOU , Runze LI , Xin CUI , Mingzheng LIU , Teng GAO , Xiaoming WANG
Abstract: A production line of a CA abrasive, including: a belt mold, the belt mold being provided with a cavity; a transmission device, configured to drive the belt mold to run; a slurry coating mechanism, configured to coat a slurry on a surface and into the cavity of the belt mold; a slurry scraping mechanism, configured to scrap the slurry coated on the surface of the belt mold into the cavity; a drying mechanism, configured to dry the belt mold so that the slurry is dried and precipitated into abrasive grains; a separation mechanism, arranged below the drying mechanism and configured to shake down the abrasive grains in the cavity of the belt mold by vibrating; a sweeping mechanism, configured to sweep slurry fragments of the belt mold after separation; and a release agent coating mechanism, configured to spray a release agent to the swept belt mold.
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87.发明申请公开(公告)号：US20210325294A1
公开(公告)日：2021-10-21
申请号：US16850381
申请日：2020-04-16
Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY
Inventor： Jianlin LUO , Zuquan JIN , Xueqing ZHU , Jigang ZHANG
Abstract: A carbon nanotube (CNT) assembled thin film modified steel wire array electrode, a preparation method and application thereof. The array electrode includes: a surface of a steel wire is negatively modified, and the surface of the steel wire is assembled with a plurality of layers of CNT thin films; one end of the steel wire is welded to a conductor, and a welding position between the steel wire and the conductor is wrapped with an insulating heat shrinkable tube; and the insulating template and the steel wire are encapsulated and cured by using an epoxy resin. The preparation method of the array electrode of the invention mainly includes the following steps: first, performing negative modification on a steel wire, then, assembling CNT thin films on the steel wire, and preparing the modified array steel wire into the CNT assembled thin film modified steel wire array electrode.
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88.发明授权公开(公告)号：US11047818B2
公开(公告)日：2021-06-29
申请号：US16672540
申请日：2019-11-04
Inventor： Changhe Li , Min Yang , Runze Li , Yanbin Zhang , Xianpeng Zhang , Heju Ji , Yali Hou , Naiqing Zhang , Qidong Wu
Abstract: The present invention discloses an integrated online measurement system for thermophysical property parameters of nanofluid cutting fluid, consisting of a gas path system, a fluid path system, a nanofluid thermal conductivity measurement device, a measurement device for a convective heat transfer coefficient and a nanofluid/workpiece heat partition ratio of the nanofluid cutting fluid, and a grinding force and grinding temperature measurement device or a milling force and milling temperature measurement device; the nanofluid thermal conductivity measurement device is located in the fluid path system; the gas path system provides pressure for the nanofluid in the fluid path system, two nozzles lead out from the fluid path system, and the nanofluid gas spray ejected by the nozzle I is sprayed onto the surface of a workpiece I to form the measurement device for the nanofluid convective heat transfer coefficient and the nanofluid/workpiece heat partition ratio; and the nanofluid gas spray ejected by the nozzle II is sprayed onto the surface of a workpiece II to form the grinding force and grinding temperature measurement device.
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89.发明申请公开(公告)号：US20210164811A1
公开(公告)日：2021-06-03
申请号：US17019950
申请日：2020-09-14
Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY
Inventor： Sen LIANG , Yunpeng YAN , Guanghe WANG , Gongxian YANG
Abstract: Two photoelectric circuit sets each have a light source, two light switches, optical fibers, photoelectric sensor and computer. The light source emits visible light to the first switch, which is continuously deflected and reflected by a torsional micro-mirror. The light respectively irradiates each of the optical fibers in a composite material optical fiber prepreg layer. If the material is normal, the optical fiber is not damaged, the visible light passes through the optical fiber and irradiates the second switch, and is continuously deflected and reflected by a second torsional micro-mirror, the light irradiates the photoelectric sensor. The sensor outputs an electric signal to the computer. If the material is damaged, the optical fiber here is damaged, another corresponding optical fiber path at an intersection point is also damaged without electric signal output. The computer gives breaking position coordinates at the intersection point of two paths of optical fiber arrays.
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公开(公告)号：US10962076B2
公开(公告)日：2021-03-30
申请号：US16985179
申请日：2020-08-04
Applicant: Qingdao University of Technology
Inventor： Chunwei Zhang , Hao Wang
IPC: F16F7/10
Abstract: An active rotary inertia driver system includes an output support, a drive assembly and a rotary inertia plate. The output support includes a partition plate and a housing. The partition plate is fixed on an inner wall of the housing, and the housing is connected with a controlled structure. One end of the drive assembly is fixed on the housing and connected to one end of an output shaft. The other end of the drive assembly is fixed on the partition plate. The other end of the output shaft extends out of the housing and connected to the rotary inertia plate. The rotary inertia plate is a disc or a ring with a preset mass.
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