Patents Assigned to QINGDAO UNIVERSITY
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Publication number: 20210164811Abstract: 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.Type: ApplicationFiled: September 14, 2020Publication date: June 3, 2021Applicant: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Sen LIANG, Yunpeng YAN, Guanghe WANG, Gongxian YANG
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Method for industrial production of trans-butadiene-isoprene copolymer rubber and apparatus therefor
Patent number: 10988561Abstract: A method for industrial production of a butadiene-isoprene copolymer rubber having a trans-1,4-structure (TBIR) and an apparatus for implementing the method. The production method includes: pumping a predetermined amount of a butadiene and an isoprene into a polymerization reactor, and performing bulk polymerization in the presence of a catalyst to obtain TBIR; performing extrusion, devolatilization, granulation and drying on the produced TBIR, and then packaging the produced TBIR; and separating unreacted monomers by a recovery and separation device followed by separately refining the unreacted monomers, and then returning the unreacted monomers to a batching device or a storage tank. The production apparatus has a recovery and refining unit, a polymerization unit, a post-treatment unit and a utility unit. By the production apparatus and the production method industrial production of TBIR by bulk polymerization is realized.Type: GrantFiled: November 15, 2016Date of Patent: April 27, 2021Assignees: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY, SHANDONG HUAJU POLYMER MATERIALS CO., LTD., CHAMBROAD CHEMICAL INDUSTRY RESEARCH INSTITUTE CO., LTD.Inventors: Aihua He, Yunsheng Ma, Huafeng Shao, Gang Yao, Chenguang Liu, Bo Luan, Riguo Wang -
Patent number: 10992239Abstract: A single-stage three-phase high-gain boost-type three-port integrated inverter includes a center-tapped energy storage inductor, a three-phase inverter bridge and a three-phase filter, which are successively connected in cascade. A drain terminal and a source terminal of the energy storage switch are respectively connected to the center tap of the energy storage inductor and the negative electrode of an input DC power source. A battery charge/discharge switch unit is connected between a positive electrode of the input DC power source, a positive electrode of a battery and two ends of the center-tapped energy storage inductor. The inverter has three ports, an input port, an output port, and an energy storage port. The inverter has three modes which are the input power supply supplies power to the output load and the battery, the input power supply and battery supply power to the output load, and the battery supplies power to the load.Type: GrantFiled: December 6, 2018Date of Patent: April 27, 2021Assignee: QINGDAO UNIVERSITYInventor: Daolian Chen
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Patent number: 10983057Abstract: A method for preparing a ratiometric fluorescent sensor for paracetamol based on a copper nanoclusters-carbon dots-arginine composite is provided. Copper nanoclusters CuNCs with red fluorescence are bonded to carbon dots (CDs) with blue fluorescence by electrostatic adsorption and hydrogen bonding, and then arginine is added to form the CuNCs-CDs-arginine composite. The addition of arginine leads to a significant decrease in the blue fluorescence of the CDs, while after the paracetamol is added, the blue fluorescence of the CDs gradually recovered as a result of the specific binding of arginine to paracetamol. The ratiometric fluorescent sensor for paracetamol is constructed by taking the fluorescence of the CuNCs as a reference signal, and the fluorescence of the CDs as a response signal, and fitting the linear relationship between the ratios ICDs/ICuNCs of fluorescence emission peak intensities of CDs and CuNCs and the molar concentrations of paracetamol.Type: GrantFiled: March 6, 2019Date of Patent: April 20, 2021Assignee: QINGDAO UNIVERSITYInventors: Hui Jin, Rijun Gui, Xiangning Bu, Yongxin Fu
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Patent number: 10978719Abstract: A platinum/black phosphorus-carbon sphere methanol fuel cell anode catalyst and preparation method thereof including the following steps: (1) dispersing a black phosphorus solid in an organic solvent to obtain a single or a few layers of black phosphorus dispersion with set concentration; (2) mixing the dispersion with glucose and stirring until dissolved; (3) performing a hydrothermal reaction on the solution to obtain an aqueous solution of the composite material containing a carbon core black phosphorus shell structure; (4) uniformly mixing the aqueous solution with an ethylene glycol solution of sodium chloroplatinate, adjusting the pH, then reducing the platinum on the surface by using a microwave irradiation heating method; and (5) filtering, washing and drying the obtained composite material to obtain a platinum/black phosphorus-carbon sphere composite material.Type: GrantFiled: December 8, 2017Date of Patent: April 13, 2021Assignee: QINGDAO UNIVERSITYInventors: Feifei Zhang, Zonghua Wang, Zhenyu Wang, Xing Luo, Xiaofang Duan
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Publication number: 20210102900Abstract: An electrogenerated chemiluminescence (ECL) probe is based on trititanium dicarbide two-dimensional (2D) metal carbide catalyzed luminol and a preparation method. The biosensor includes the probe and the electrode of the biosensor, wherein the probe includes the Ti3C2 MXenes nanosheets, a linker molecule and a bio-recognition molecule 1; the Ti3C2 MXenes nanosheets are linked with the linker molecule by electrostatic adsorption; the linker molecule is linked with the bio-recognition molecule 1 by an amide group, contains a primary or secondary amine group, and presents positive potential in water; the bio-recognition molecule 1 is a single-stranded DNA sequence 1 having a carboxyl group at the 5? end, and a CD63 protein on exosomes is recognized by the single-stranded DNA sequence 1. It was found for the first time that Ti3C2 MXenes can improve the ECL signal of luminol, the Ti3C2 MXenes could be applicable to the ECL probe.Type: ApplicationFiled: November 26, 2018Publication date: April 8, 2021Applicant: QINGDAO UNIVERSITYInventors: Zonghua WANG, Huixin ZHANG, Yang LIU
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Patent number: 10969058Abstract: A continuous supply precision minimum quantity lubrication pump supporting different lubrication conditions, including a pump system, a gas source processor, a driving system, an oil cup, a water pump, a two-position three-way solenoid valve, a water tank and an emulsion storage tank, wherein the processor is connected with the pump system through a bidirectional joint, the oil cup is connected with the pump system through an oil cup joint, the water pump is installed in a driving box body of the driving system and is connected with the pump system through a hose, the water tank and the emulsion storage tank are connected with the two-position three-way solenoid valve, the two-position three-way solenoid valve is connected with the driving system, and the driving system and the water pump are respectively driven by a stepping motor I and a stepping motor II.Type: GrantFiled: February 2, 2018Date of Patent: April 6, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Changhe Li, Yanbin Zhang, Dongzhou Jia, Min Yang, Naiqing Zhang, Heju Ji, Zhaorong Bing, Yali Hou, Qidong Wu
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Patent number: 10961696Abstract: A fabricated intelligent joint provided with particle damping chambers for energy dissipation includes a core steel frame, an external fully-fabricated steel pipe column, a fully-fabricated annular beam-column connecting assembly, a structural health detection system and particle damping chambers. The core steel frame is located in the external fully-fabricated steel pipe column, is concentric with the external fully-fabricated steel pipe column and comprises a circular hollow steel keel and a plurality of protruding steel plate wings. The external fully-fabricated steel pipe column is formed by splicing a plurality of arc steel pipe column sheets. A space between the external fully-fabricated steel pipe column and the circular hollow steel keel of the core steel frame has the particle damping chambers installed therein and has concrete poured therein. A large quantity of spherical rubber particles is contained in the particle damping chambers.Type: GrantFiled: July 5, 2018Date of Patent: March 30, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Ben Mou, Yan Wang, Yi Liu, Ye Liu
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Patent number: 10962664Abstract: A method for assessing a performance-based seismic design by setting a seismic risk starts from the exceedance probability of the performance level. The method is configured to determine the structural performance level by setting an exceedance probability, determine the seismic demand when the performance level is constant, set the exceedance probability of the seismic demand in combination with the seismic risk of a set earthquake to finally determine the ground motion input and establish a novel probabilistic seismic risk assessment method that reaches the performance level. The main control and objective of the design are significantly enhanced by using this method.Type: GrantFiled: October 27, 2018Date of Patent: March 30, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventor: Wenfeng Liu
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Patent number: 10954663Abstract: A cylindrical sleeve-type steel-wood composite joint includes fiberglass reinforced panel (FRP) cylindrical wood columns, X-shaped wood beams, a key connecting component, arc connecting pieces and splicing outer ring plates. The key connecting component consists of upper and lower cylindrical steel sleeve plates, a connecting sleeve, a cylindrical solid wood and filling wood blocks. The FRP cylindrical wood columns are connected to the key connecting component and are inserted into the key connecting component through the cylindrical steel sleeve plates and penetrative steel bars. The X-shaped wood beams are connected to the key connecting component through the arc connecting pieces, and the splicing outer ring plates are fixed with bolts to realize combination and connection. By adoption of the design of the connecting sleeve, the joint has a high bearing capacity, vertical force transfer is guaranteed, operation is easy, and assembly is fast.Type: GrantFiled: September 30, 2019Date of Patent: March 23, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Ben Mou, Wanqiu Zhou, Peng Feng, Bingcheng Yan
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Patent number: 10953898Abstract: An active control system for rolling behaviors of high-speed trains includes a sensor, a controller and an output device. The output device includes a power unit, an output unit and a casing. The power unit and the output unit are arranged inside the casing. The active control system applies active control torque to the shaking, rolling and nodding of the train body so as to control the train.Type: GrantFiled: October 22, 2020Date of Patent: March 23, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Chunwei Zhang, Hao Wang, Yang Xu
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Patent number: 10954643Abstract: An energy-supply rotary inertia driver system for an offshore platform includes an annular fixed plate, an active control module, a wind power generation module and a solar power generation module. The system can monitor a motion state of the offshore platform in real time, and can generate a force through the active control module if necessary to apply a force torque of the offshore platform to further achieve the vibration suppression. Moreover, when the offshore platform is under normal operation, the system can act as an energy supply device via wind and solar power generation to feed electric energy to the active control module and other electrical equipment on the offshore platform when needed.Type: GrantFiled: July 23, 2020Date of Patent: March 23, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Chunwei Zhang, Hao Wang
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Publication number: 20210062494Abstract: An assembled slab-type steel-wood composite joint, includes a steel-wood composite column, square wood beams, connecting assemblies for connecting the steel-wood composite column and the square wood beams, and wood slabs connected to and supported by the steel-wood composite column, the square wood beams and the connecting assemblies. The steel-wood composite column includes a hollow cross-shaped outer square wood column, and square blocks are integrally formed on the outer square wood column; and a steel sleeve is inlaid in the outer square wood column, an inner wood column is inlaid in the steel sleeve, column vertical steel bars penetrate through the inner wood column, horizontal steel bars penetrate through the square blocks and are fixedly connected to the steel sleeve, and threads are arranged at the ends of the horizontal steel bars.Type: ApplicationFiled: July 28, 2020Publication date: March 4, 2021Applicant: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Ben MOU, Peng FENG, Yi LIU, Zunqiang LI, Jiuwen BAO
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Publication number: 20210047827Abstract: A prefabricated steel-wood composite joint includes square pipe columns, steel-wood composite beams, and a beam-column connecting assembly for connecting the square pipe columns and the steel-wood composite beams. Each square pipe column includes connecting corner columns and connecting side plates. Each steel-wood composite beam includes a top flange, a bottom flange and wood webs for connecting the top flange and the bottom flange. The beam-column connecting assembly is a central column connecting assembly or a corner column connecting assembly. By a special structural design, the composite joint realizes effective beam-column connection without a welded connection and a bolted connection and has tenacity and good seismic performance. The components of the composite joint can be prefabricated in a factory, are high in precision and are assembled on site, so that construction is easy and convenient, procedures are simplified, and the construction period is effectively shortened.Type: ApplicationFiled: September 30, 2019Publication date: February 18, 2021Applicant: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Ben MOU, Fei ZHAO, Peng FENG, Qiyun QIAO, Bingcheng YAN
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Publication number: 20210039285Abstract: A molding process of a co-cured short-fiber resin-based damping composite material and a molding part. Different from a traditional centrifugal processing process of a thin-walled tube of a resin-based composite material, the process uses raw materials including three kinds of materials with different densities and including two kinds of short-fiber epoxy resin with different densities and a damping material. During centrifugal molding, the three kinds of materials are made into fluids to be respectively injected at a uniform speed in three times according to the sizes of the densities. Layering is performed by using different centrifugal forces applied to the three kinds of materials. Co-curing is performed according to a resin curing process after the three kinds of materials are stably distributed, and a tubular thin-walled part of the embedded co-cured short-fiber resin-based damping composite material with a uniform wall thickness is obtained.Type: ApplicationFiled: August 5, 2020Publication date: February 11, 2021Applicant: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Sen LIANG, Gongxian YANG, Yunpeng YAN, Guanghe WANG
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Publication number: 20210041433Abstract: A method for preparing an upconversion-luminescence flexible hybrid membrane for visual detection of tumor markers is provided. Metal ion doped black phosphorus quantum dots (M-BPQDs) are prepared by adopting ultrasonic and solvothermal processes; mesoporous SiO2 grows on the surfaces of the M-BPQDs and amination modification is performed; the M-BPQDs are connected with carboxylated single-stranded DNA1; receptor molecules enter pores; single-stranded DNA2 aptamers and the DNA1 are combined due to base complementation to encapsulate receptors in the pores; and an M-BPQDs probe is prepared. DNA1 terminal-SH and a composite membrane are formed by assembling polymethyl methacrylate-polyimide-gold nanoparticles in a layer-by-layer manner bound by Au—S bonds, and the membrane and the probe are connected to construct the flexible hybrid membrane. The new flexible hybrid membrane is simple and inexpensive to prepare and is highly sensitive.Type: ApplicationFiled: April 3, 2019Publication date: February 11, 2021Applicant: QINGDAO UNIVERSITYInventors: Hui JIN, Rijun GUI, Yujiao SUN, Xiaowen JIANG
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Patent number: 10914061Abstract: An assembled slab-type steel-wood composite joint, includes a steel-wood composite column, square wood beams, connecting assemblies for connecting the steel-wood composite column and the square wood beams, and wood slabs connected to and supported by the steel-wood composite column, the square wood beams and the connecting assemblies. The steel-wood composite column includes a hollow cross-shaped outer square wood column, and square blocks are integrally formed on the outer square wood column; and a steel sleeve is inlaid in the outer square wood column, an inner wood column is inlaid in the steel sleeve, column vertical steel bars penetrate through the inner wood column, horizontal steel bars penetrate through the square blocks and are fixedly connected to the steel sleeve, and threads are arranged at the ends of the horizontal steel bars.Type: GrantFiled: July 28, 2020Date of Patent: February 9, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Ben Mou, Peng Feng, Yi Liu, Zunqiang Li, Jiuwen Bao
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Patent number: 10913892Abstract: A method for preparing a ratiometric fluorescent probe for melamine based on a DNA-stable silver nanocluster-rhodamine 6G complex, wherein the electrostatic self-assembly technology is adopted to construct a silver nanocluster-rhodamine 6G complex. The melamine forms a strong hydrogen bond with thymine in the DNA of the surface of the silver nanocluster, causing rhodamine 6G to dissociate from the surface of the silver nanocluster, destroying the fluorescence resonance energy transfer, so as to restore the fluorescence of the silver nanocluster. This process has little effect on Rhodamine 6G fluorescence which can be used as a reference signal, while silver nanocluster fluorescence can be used as a response signal. By fitting the linear relationship between the ratio of fluorescence emission peak intensities of the silver nanocluster to rhodamine 6G and the molar concentration of the melamine, the ratiometric fluorescent probe for melamine can be constructed.Type: GrantFiled: March 5, 2019Date of Patent: February 9, 2021Assignee: QINGDAO UNIVERSITYInventors: Rijun Gui, Yongxin Fu, Hui Jin, Xiangning Bu
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Patent number: 10907343Abstract: A prefabricated steel-wood composite joint includes square pipe columns, steel-wood composite beams, and a beam-column connecting assembly for connecting the square pipe columns and the steel-wood composite beams. Each square pipe column includes connecting corner columns and connecting side plates. Each steel-wood composite beam includes a top flange, a bottom flange and wood webs for connecting the top flange and the bottom flange. The beam-column connecting assembly is a central column connecting assembly or a corner column connecting assembly. By a special structural design, the composite joint realizes effective beam-column connection without a welded connection and a bolted connection and has tenacity and good seismic performance. The components of the composite joint can be prefabricated in a factory, are high in precision and are assembled on site, so that construction is easy and convenient, procedures are simplified, and the construction period is effectively shortened.Type: GrantFiled: September 30, 2019Date of Patent: February 2, 2021Assignee: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Ben Mou, Fei Zhao, Peng Feng, Qiyun Qiao, Bingcheng Yan
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Publication number: 20210025159Abstract: A cylindrical sleeve-type steel-wood composite joint includes fiberglass reinforced panel (FRP) cylindrical wood columns, X-shaped wood beams, a key connecting component, arc connecting pieces and splicing outer ring plates. The key connecting component consists of upper and lower cylindrical steel sleeve plates, a connecting sleeve, a cylindrical solid wood and filling wood blocks. The FRP cylindrical wood columns are connected to the key connecting component and are inserted into the key connecting component through the cylindrical steel sleeve plates and penetrative steel bars. The X-shaped wood beams are connected to the key connecting component through the arc connecting pieces, and the splicing outer ring plates are fixed with bolts to realize combination and connection. By adoption of the design of the connecting sleeve, the joint has a high bearing capacity, vertical force transfer is guaranteed, operation is easy, and assembly is fast.Type: ApplicationFiled: September 30, 2019Publication date: January 28, 2021Applicant: QINGDAO UNIVERSITY OF TECHNOLOGYInventors: Ben MOU, Wanqiu ZHOU, Peng FENG, Bingcheng YAN