公开(公告)号：US20240369528A1

公开(公告)日：2024-11-07

申请号：US18030180

申请日：2022-02-22

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Dongshuai HOU ,  Muhan WANG ,  Xiang JI ,  Pan WANG ,  Xinpeng WANG ,  Yue ZHANG

IPC: G01N33/38 ,  C04B24/32 ,  C04B111/00

Abstract: The present disclosure provides a performance testing method and system for a polycarboxylate superplasticizer in a concrete system. An interface model is constructed based on a calcium silicate hydrate (C—S—H) gel model and a molecular dynamics model of a polycarboxylate superplasticizer, which can cover complexity of a cement particle interface and variability of the polycarboxylate superplasticizer, and can also establish a link between a microstructure of the polycarboxylate superplasticizer and a macroscopic fluidity of a cement across multiple scales. Meanwhile, friction resistance is accurately calculated based on the constructed interface model to accurately test a performance of the polycarboxylate superplasticizer, thereby shortening a screening cycle of the polycarboxylate superplasticizer and improving a performance optimization efficiency.

公开(公告)号：US20240367323A1

公开(公告)日：2024-11-07

申请号：US18287115

申请日：2021-05-20

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： CHENGXING LV ,  JIAN CHEN ,  YUGUO ZHOU ,  XINLI XU ,  ZHIBO YANG ,  YUXIA YANG ,  YONGLING WU ,  QIAN GAO ,  XIA LV ,  HUAMIN ZHAO ,  JIHENG YU ,  YINGHUI DONG

IPC: B25J9/16 ,  B25J11/00

Abstract: A robot welding method based on semantic feature clustering; the method comprises: acquiring an image of a workpiece, and generating an image training sample set; performing semantic annotation on the image of the workpiece to generate a semantic training sample set; establishing a semantic clustering model, and training same by using the image training sample set and the semantic training sample set; by using the trained semantic clustering model, identifying an image of a workpiece to be welded, so as to obtain data of the workpiece to be welded; on the basis of the data of the workpiece to be welded and by using parameterized online programming, generating a welding program for the workpiece to be welded; and on the basis of the welding program, executing welding of the workpiece to be welded. By means of the robot welding method based on semantic feature clustering, neither teaching programming nor offline programming is required, thereby improving the precision, efficiency, universality and flexibility. Further provided is a robot welding system based on semantic feature clustering.

公开(公告)号：US12123292B1

公开(公告)日：2024-10-22

申请号：US18606428

申请日：2024-03-15

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)

Inventor： Kai Zhang ,  Guojing Xin ,  Zhongzheng Wang ,  Piyang Liu ,  Liming Zhang ,  Xia Yan ,  Huaqing Zhang ,  Zifeng Sun ,  Feng Jia

IPC: E21B43/16 ,  G06F30/28 ,  G06N3/092

CPC classification number: E21B43/16 ,  G06F30/28 ,  G06N3/092 ,  E21B2200/20

Abstract: A differentiated real-time injection-production optimization adjustment method of an intelligent injection-production linkage device belongs to the field of oil reservoir injection-production technologies. The method includes: initializing networks; building an injection-production environment model; by an agent, reading an initial state of an injection-production environment; writing a file by an injection-production policy network; obtaining state data of the moment t+1; reading a next state and an economic net present value within the time step; assigning the next state to the current state until a to-be-optimized production period is completed; by batch training on the model, updating a parameter of the environment agent model; updating a parameter of the action evaluation network and a parameter of the injection-production policy network; repeating the above steps until an optimal model is obtained; based on the stored optimal model, linking the intelligent injection-production device to obtain state information of the oil reservoir.

公开(公告)号：US12103869B2

公开(公告)日：2024-10-01

申请号：US17272670

申请日：2020-01-19

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Jincheng Li ,  Wenxiang Xia ,  Yanyan Wang ,  Xiaoting Yang ,  Baoxiu Zhao ,  Jie Liu ,  Xiaoli Zhao

IPC: C02F3/00 ,  C02F1/461 ,  C02F3/20 ,  C02F101/16 ,  C02F101/30

CPC classification number: C02F1/46109 ,  C02F1/4618 ,  C02F3/005 ,  C02F3/202 ,  C02F2001/46185 ,  C02F2101/163 ,  C02F2101/30

Abstract: The application belongs to the technical field of water treatment, and relates to a biofilm electrochemical reactor for simultaneously removing nitrate nitrogen and trace organic matters in water. According to the principles of electrochemical reaction and products completely different under different cathode and anode material conditions, the reactor is divided into three functional regions, wherein first, an electrochemical reaction of producing hydrogen at a cathode and decomposing carbon at an anode is realized in a first functional region so as to provide a condition for reduction of nitrate nitrogen by a hydrogen autotrophic denitrifying bacteria of a particle electrode layer in a second functional region, after products generated by means of the electrochemical reaction and a biochemical reaction in the previous two functional regions enter a third functional region, pollutants such as trace organic components and residual ammonia nitrogen in water are oxidized and decomposed by using anodic oxidation function.

公开(公告)号：US12103812B2

公开(公告)日：2024-10-01

申请号：US18534405

申请日：2023-12-08

Applicant: Qingdao University of Technology ,  Ziguo Wang

Inventor： Ziguo Wang ,  Yuyan Sun

IPC: B65H75/44

CPC classification number: B65H75/4465 ,  B65H75/4471 ,  B65H2701/1133

Abstract: A flexible layer support structure and a retractable device is disclosed. The flexible layer support structure includes a first thin sheet and a second thin sheet arranged in parallel with each other, as well as and a folding spring group sandwiched between the first thin sheet and the second thin sheet and arranged in parallel. The curved elastic pieces in the folding spring group are smoothly overlapped and connected with the thin sheets, so as to enclose a hollow thin-walled elastic structure that can be overlapped and rolled up, can be automatically straightened and has a flat surface. The retractable device includes a winding shaft, a pressure roller, and a flexible layer support structure installed on the winding shaft. The flexible layer support structure of the present disclosure has the advantages in lightweight, high storage ratio, large unfolded area, simple winding, large load bearing capacity, and less damage.

公开(公告)号：US12103129B2

公开(公告)日：2024-10-01

申请号：US17281035

申请日：2020-02-06

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  NINGBO SANHAN ALLOY MATERIAL CO., LTD.

Inventor： Yanbin Zhang ,  Lizhi Tang ,  Liang Luo ,  Changhe Li ,  Haizhou Xu ,  Min Yang ,  Huaping Hong ,  Haogang Li ,  Shuo Yin ,  Xin Cui ,  Mingzheng Liu ,  Teng Gao ,  Yali Hou ,  Runze Li

IPC: B23Q3/08 ,  B23Q1/25 ,  B23Q3/18 ,  G06T1/00 ,  G06T7/00

CPC classification number: B23Q3/082 ,  B23Q1/25 ,  B23Q3/18 ,  G06T1/0014 ,  G06T7/0004

Abstract: A multi-station self-positioning floating clamping and workpiece automatic flip intelligent fixture system includes a linear motion device, a workpiece automatic flip device and a self-positioning floating clamping device. A bottom portion of the workpiece automatic flip device is connected to the linear motion device, which drives the workpiece automatic flip device to move horizontally; the self-positioning floating clamping device clamps the workpiece, the workpiece automatic flip device is arranged opposite to the self-positioning floating clamping device, and the workpiece automatic flip device clamps the workpiece and drives the workpiece to turn over; and the workpiece automatic flip device includes a rotary cylinder, which is connected to a hydraulic cylinder, a piston rod of the hydraulic cylinder is connected to a mechanical claw opening-and-closing finger through a hinge mechanism, and the hydraulic cylinder reciprocates to drive the mechanical claw opening-and-closing finger to open and close to clamp or release the workpiece.

公开(公告)号：US20240254047A1

公开(公告)日：2024-08-01

申请号：US18004560

申请日：2021-07-27

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun Li ,  Shilin Xu ,  Ang Liu ,  Yongjuan Geng ,  Dongshuai Hou ,  Ruiyong Zhang ,  Zuquan Jin ,  Song Gao

IPC: C04B24/42 ,  C04B22/06 ,  C04B40/00 ,  C04B103/40

CPC classification number: C04B24/42 ,  C04B22/066 ,  C04B40/0046 ,  C04B2103/408

Abstract: Provided is the use of a silane composite emulsion as an anti-cracking enhancer in a cement-based material. In the present disclosure, active groups on an isobutyltriethoxysilane molecule react with hydroxyl groups on a surface of a mortar to form a layered hydrophobic structure, slowing down a water loss inside the mortar of a cement-based material. The dehydration of butyl acrylate forms a network structure, which fills pores of the cement-based material, inhibits shrinkage of the cement-based material, and reduces the cracking caused by the shrinkage. Tetraethoxysilane can undergo hydrolysis at a room temperature to generate nano-silica with a large number of hydroxyl groups on a surface; and the nano-silica can undergo secondary hydration with calcium hydroxide in the cement to form a secondary hydration product C—S—H gel, thereby filling most of voids to make a structure of the cement hydration product denser, to increase a strength of the mortar.

公开(公告)号：US20240246261A1

公开(公告)日：2024-07-25

申请号：US18328578

申请日：2023-06-02

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Sen LIANG ,  Fengquan WANG ,  Cheng TIAN ,  Long WU

IPC: B29B15/12 ,  B29C70/44

CPC classification number: B29B15/125 ,  B29C70/443 ,  B29K2307/04

Abstract: A method with which mechanical properties of the interface of the fiber reinforced thermoplastic resin matrix composite material can be improved by conducting grafting on surfaces of materials. A carbon fiber (CF) and a polymethyl methacrylate resin (PMMA) are subjected to interface modification treatment to introduce active carboxyl groups to the surfaces of the materials. Then, hexamethylene diisocyanate (HDI) is used as a coupling layer for connecting the carboxyl groups on the surfaces of the carbon fiber and on the surfaces of the polymethyl methacrylate resin to form a “molecular bridge”. Accordingly, the interface binding force between the resin and the fiber is improved by chemical grafting. A modified carbon fiber reinforced polymethyl methacrylate composite material sample (CF/PMMA) is prepared by a thin film lamination method, and the composite material sample prepared is subjected to a microscopic verification testing of the validity of the method provided in the present disclosure.

公开(公告)号：US20240228686A1

公开(公告)日：2024-07-11

申请号：US17928012

申请日：2022-01-19

Applicant: Qingdao University of Technology

Inventor： Dongshuai HOU ,  Cong WU ,  Bing YIN ,  Shaochun LI ,  Xinpeng WANG ,  Pan WANG

IPC: C08F265/06 ,  C09D5/08 ,  C09D151/00

CPC classification number: C08F265/06 ,  C09D5/08 ,  C09D151/003

Abstract: The present disclosure provides a styrene acrylate-siloxane composite emulsion with a core-shell structure, and a preparation method and use thereof, and relates to the technical field of protective coatings. In the present disclosure, a core emulsion is prepared through two-step emulsification with styrene, an acrylate monomer, a first emulsifying agent, a first initiator, a second initiator, an alkaline reagent, and water as raw materials; then a shell emulsion is prepared with a siloxane monomer, a hydroxyl-containing acrylate monomer, an emulsifying agent, and water as raw materials; and then the core emulsion, the shell emulsion, and an initiator are subjected to a grafting reaction to obtain the styrene acrylate-siloxane composite emulsion with a core-shell structure.

公开(公告)号：US12030821B1

公开(公告)日：2024-07-09

申请号：US18522139

申请日：2023-11-28

Applicant: Qingdao University of Technology

Inventor： Bo Pang ,  Zuquan Jin ,  Guoqing Geng ,  Yunsheng Zhang ,  Cheng Liu ,  Yidong Chen ,  Dafu Wang ,  Rusheng Qian

IPC: C04B41/49 ,  C04B41/46 ,  C04B41/50

CPC classification number: C04B41/4922 ,  C04B41/463 ,  C04B41/5035

Abstract: A concrete interface agent relates to the technical field of concrete surface protection, an ingredient of the concrete interface agent comprises 55 to 100 parts by weight of a nano-calcium salt solution and a nano-SiO2 precursor, 0.1 to 0.4 parts by weight of a surfactant, 30 to 60 parts by weight of a silane coupling agent and 10 to 40 parts by weight of a polydimethylsilane, an ingredient of the nano-calcium salt solution comprises 2 to 5 parts by weight of a calcium hydroxide, 2 to 5 parts by weight of an acid catalyst and 200 to 500 parts by weight of an alcohol-based organic solvent, which can form a coating layer with higher hydrophobic angle on the concrete surface, reduce the water absorption of the concrete, and is not easy to crack after drying, which has more protective effect and longer service life than the existing TEOS interface agent.