公开(公告)号：US11335018B1

公开(公告)日：2022-05-17

申请号：US17571400

申请日：2022-01-07

Applicant: Weihai Innovation Institute, Qingdao University ,  QINGDAO UNIVERSITY ,  Qingdao Point Cloud Intelligent Technology Co., Ltd.

Inventor： Weizhong Zhang ,  Zenghui Liu ,  Chi Zhang ,  Hongfeng Zhang ,  Cuimei Yuan ,  Yongpan Li ,  Tianyu Chen

IPC: G06T7/521 ,  G06T5/30 ,  G06T5/00 ,  G06T7/238 ,  G06T7/536

Abstract: The present application provides a volumetric measuring method and apparatus based on a TOF depth camera, which is achieved by: acquiring depth images; denoising the depth images; selecting a first feature area of the first depth image and a second feature area of the second depth image that have been denoised respectively, traversing each pixel point in the first feature area at multiple traversal speeds, and matching a first depth value of a current pixel point with a second depth value of a target pixel point corresponding to the current pixel point in the second feature area to acquire multiple total similarity values; determining a traversal speed corresponding to a maximum total similarity value as an instantaneous speed at a current moment; calculating a package volume according to the instantaneous speed. The present application effectively solves the problem that an accurate package volume cannot be obtained when a speed of the conveyor belt is not fixed, and high in feasibility.

公开(公告)号：US20250018361A1

公开(公告)日：2025-01-16

申请号：US18275297

申请日：2022-11-18

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun LI ,  Xu CHEN ,  Mengjun HU ,  Yongjuan GENG ,  Zuquan JIN ,  Song GAO ,  Dongshuai HOU

IPC: B01J20/06 ,  B01D53/62 ,  B01J20/28 ,  B01J20/30 ,  C04B41/00 ,  C04B41/45 ,  C04B41/48 ,  C04B41/63

Abstract: Provided are a titanium sol carbon sequestration additive and a preparation method and use thereof, and a method for carbon sequestration of a cement-based material. The method for preparing the titanium sol carbon sequestration additive includes: mixing titanium tetraisopropanolate with an ammonia aqueous solution to obtain a first mixture, subjecting the first mixture to hydrolysis to obtain a hydrolysis solution, and drying the hydrolysis solution to obtain a titanium dioxide powder; mixing the titanium dioxide powder with sodium polyacrylate and a methyldiethanolamine (MDEA) aqueous solution to obtain a second mixture, and subjecting the second mixture to amination to obtain a solution A; mixing water with ethanol to obtain a solution B; and mixing the solution A and the solution B with a catalyst to obtain a mixed solution, and subjecting the mixed solution to solation to obtain the titanium sol carbon sequestration additive.

公开(公告)号：US20250011479A1

公开(公告)日：2025-01-09

申请号：US18751816

申请日：2024-06-24

Applicant: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Chunyu ZHANG ,  Yingnan ZHAO ,  Lihua NA ,  Heng LIU ,  Xuequan ZHANG

IPC: C08F4/80 ,  C08F2/06 ,  C08F6/10 ,  C08F36/06 ,  C08F36/08

Abstract: Disclosed are an iron-based catalyst and its application catalytic diene polymerization. The iron-based catalyst provided by the present application includes iron-containing organic compounds, alkyl aluminum compounds and isocyanide-containing organic compounds, and the molar ratio between the iron element of the iron-containing organic compounds, the alkyl aluminum compounds and the isocyanide-containing organic compounds is 1:(5˜100):(0.5˜100). The iron-based catalyst system of the present application can initiate polymerization of diene with high activity at high temperature by using isocyanide-containing organic compounds as an electron donor and alkyl aluminum compounds as a co-catalyst.

公开(公告)号：US20240369529A1

公开(公告)日：2024-11-07

申请号：US18030285

申请日：2022-06-16

Applicant: Qingdao University of Technology

Inventor： Peng Zhang ,  Wentao Wang ,  Jiuwen Bao ,  Shanbin Xue

IPC: G01N33/38 ,  G01N27/04 ,  G01N27/22

Abstract: The present disclosure relates to an ERT/ECT dual-modality combined three-dimensional sensor. A cover box is sheathed with a shielding box, a plurality of small round holes are formed in the top surface and the side surfaces of the cover box, ERT electrodes are arranged in the small round holes, and ECT electrodes are arranged at the outer sides of the ERT electrodes. The ERT electrodes are connected to an ERT data acquisition box via electrode leads, and the ECT electrodes are connected to an ECT data acquisition box via the electrode leads. An integrated cuboid design in line with the concrete structure is employed. Meanwhile, the dimensions, combination modes, placement modes and positions, supporting structures, shielding devices, electrode leads and leading-out modes of two sets of electrode arrays are subjected to comprehensive optimization design to achieve three-dimensional visual nondestructive monitoring of the moisture intrusion process in the concrete structure.

公开(公告)号：US20240365698A1

公开(公告)日：2024-11-07

申请号：US18774465

申请日：2024-07-16

Applicant: Qingdao University of Technology ,  Institute of Agricultural Mechanization, Xinjiang Academy of Agricultural Sciences ,  Inner Mongolia University For Nationalities

Inventor： Changhe LI ,  Huayang ZHAO ,  Dongzhou JIA ,  Rong WANG ,  Huimin YANG ,  Jia SHI ,  Yezhen PENG ,  Peng GONG ,  Qiyu ZHOU ,  Deju LI ,  Zongbin YUAN ,  Yali HOU

IPC: A01C1/00 ,  A01C1/06 ,  A01C1/08

Abstract: An intelligent seed production apparatus and method based on multistage screening and bud eye identification includes a feeding module, a pre-cutting module, a bud eye identifying and cutting module, and a material mixing module. The feeding module can screen out seed potatoes with the mass and shapes meeting the requirements through a multistage screening mechanism. The pre-cutting module can receive the seed potatoes discharged from the feeding module, and cut each seed potato in half, the bud eye identifying and cutting module can receive the seed potato pieces discharged from the pre-cutting module and determine the weight of the seed potatoes and identify the bud eye distribution on the surfaces of the seed potatoes, and cut the seed potato into multiple required tubers, so that bud eyes are distributed on different tubers uniformly. The material mixing module can receive the cut tubers, and complete the material mixing of the tubers.

公开(公告)号：US12103785B2

公开(公告)日：2024-10-01

申请号：US17729492

申请日：2022-04-26

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY ,  IK GUJRAL PUNJAB TECHNICAL UNIVERSITY

Inventor： Changhe Li ,  Minkai Chen ,  Zongming Zhou ,  Bo Liu ,  Yun Chen ,  Huajun Cao ,  Shubham Sharma ,  Naiqing Zhang ,  Qidong Wu ,  Teng Gao ,  Yanbin Zhang ,  Mingzheng Liu ,  Xiaoming Wang ,  Min Yang ,  Hao Ma ,  Xifeng Wu

IPC: B65G47/90 ,  B65G47/42 ,  B65G57/03

CPC classification number: B65G47/42 ,  B65G47/901 ,  B65G47/905 ,  B65G57/03 ,  B65G2201/0294 ,  B65G2811/0663

Abstract: Provided an automatic feeding device for automotive wheel hub, comprising a separable material rack having material rack units capable of being stacked in turn, a first roller table for conveying the separable material rack containing the wheel hub to a second roller table, and a material rack separating device having a support frame and material rack inserting and taking devices; the second roller table, under which a lifting platform is mounted, is located at a first end of lower part of the material rack inserting and taking device; the material rack inserting and taking device splitting the separable material rack into units, and placing to a third roller table being arranged at a second end of the lower part thereof; a manipulator, for grasping and placing the wheel hub from the material rack unit to a fourth roller table being on a second side thereof.

公开(公告)号：US20240279452A1

公开(公告)日：2024-08-22

申请号：US18648964

申请日：2024-04-29

Applicant: QINGDAO UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Aihua HE ,  Chenguang LIU ,  Huafeng SHAO

IPC: C08L23/22 ,  C08F2/01 ,  C08F2/06 ,  C08F4/659 ,  C08F210/08

CPC classification number: C08L23/22 ,  C08F2/01 ,  C08F2/06 ,  C08F4/65912 ,  C08F210/08 ,  C08F2400/02 ,  C08F2800/20 ,  C08L2205/025 ,  C08L2205/035 ,  C08L2207/10

Abstract: Disclosed are a high temperature blasting resistance isotactic polybutene alloy and a preparation method thereof. The isotactic polybutene alloy of the present invention comprises 1-40% of isotactic polypropylene in parts by mass, 0.1-10% of a polypropylene-polybutene-1 block copolymer in parts by mass, 35-95.9% of isotactic polybutene-1 of a medium molecular weight in parts by mass, and 3-15% of isotactic polybutene-1 of a high molecular weight in parts by mass. The alloy material is prepared using a method of segmented polymerization of propylene polymerization, high hydrogen content butene polymerization and low hydrogen content butene polymerization. The prepared isotactic polybutene alloy has excellent high temperature blasting resistance and high temperature hydrostatic pressure, is high in vicat softening temperature, and is applicable to pressure pipes.

公开(公告)号：US12030812B1

公开(公告)日：2024-07-09

申请号：US18429030

申请日：2024-01-31

Applicant: Qingdao University of Technology

Inventor： Zuquan Jin ,  Bo Pang ,  Yunsheng Zhang ,  Dongshuai Hou ,  Heping Zheng

IPC: C04B28/00 ,  C04B24/02 ,  C04B103/00 ,  C04B111/74

CPC classification number: C04B28/006 ,  C04B24/023 ,  C04B2103/0046 ,  C04B2111/74

Abstract: An underwater rapid repair material for marine steel structure comprises: 20 to 50 parts by weight of an alkali activation material, 3 to 12 parts by weight of a fast hardening waterborne polymer curing agent, 2 to 8 parts by weight of a fast hardening waterborne polymer precursor, 30 to 100 parts by weight of an aggregate, 1 to 5 parts by weight of an activator and 3 to 20 parts by weight of a water. The underwater rapid repair material provided by the present invention is not dispersed and segregated in water, with an initial setting time as low as 0.5 hours and a final setting time as low as 1.1 hours, after pouring 3 hours, the compressive strength and flexural strength can reach about 60 MPa and 10 MPa respectively, and has high bonding strength to steel and is not easy to fall off after solidification.

公开(公告)号：US20240174566A1

公开(公告)日：2024-05-30

申请号：US18280777

申请日：2023-02-09

Applicant: QINGDAO UNIVERSITY OF TECHNOLOGY

Inventor： Shaochun Li ,  Xu Chen ,  Mengjun Hu ,  Ang Liu ,  Yongjuan Geng ,  Jialin Jiang

IPC: C04B18/02 ,  C04B14/30 ,  C04B28/02 ,  C04B40/02

CPC classification number: C04B18/023 ,  C04B14/305 ,  C04B28/02 ,  C04B40/0231

Abstract: Provided are a nano-titanium dioxide (NT)/biochar (BC) composite, and a preparation method and use thereof, which belong to the technical field of cement-based materials. NT is introduced into a porous structure of the micron-sized BC, which not only addresses the high aggregation of NT, but also reduces Ca(OH)2 size and crystal growth orientation through effects such as filling and nucleation brought by NT in the porous structure of BC. In this way, more C—S—H gels are generated to fill the pores, thereby improving an interfacial transition zone (ITZ), which enhances the mechanical properties such as compressive strength and flexural strength. The NT/BC composite of the disclosure is doped into a cement-based material, which allows that in a surface layer of the cement-based material, CO2 absorption capacity could be improved through carbon sequestration properties and the porous structure of the composite, and the carbonization of the surface layer could be accelerated by hydration accelerating properties of the NT to form a calcium carbonate surface protective layer, thereby improving durability of the cement-based material.

公开(公告)号：US11987567B2

公开(公告)日：2024-05-21

申请号：US17899814

申请日：2022-08-31

Applicant: Qingdao University of Science and Technology

Inventor： Yingjie Zhao ,  Wenqi Qiu ,  Hui Liu ,  Zhenxiu Zhang ,  Jinyu Zhao

IPC: C07D319/12 ,  B01J31/04 ,  B01J37/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/04 ,  B01J37/06

CPC classification number: C07D319/12 ,  B01J31/04 ,  B01J37/009 ,  B01J37/0236 ,  B01J37/031 ,  B01J37/04 ,  B01J37/06 ,  B01J2231/005 ,  B01J2531/002

Abstract: The present invention discloses a synthesis method of lactide by confinement effect catalysis of crystalline porous polymer material, wherein the method comprising: (I) synthesis of catalyst; (II) synthesis of lactide by confinement effect catalysis; and (III) purification of lactide. In the present invention, a yield of L-lactide by catalysis of L-lactic acid by crystalline polymers is as high as 85.6%, which is 10% higher than the yield of lactide by H-β molecular sieve reported in documents currently available; it is easy to prepare the crystalline porous polymer material catalyst, which is environmental friendly, has a high yield and is recyclable, for consecutive 7 times the catalysis yield is maintained to be higher than 70%, and catalysis yield conservation rate is far higher than catalysis effects of catalysts reported in documents currently available.