公开(公告)号：US20230311052A1

公开(公告)日：2023-10-05

申请号：US18191898

申请日：2023-03-29

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yongchen Song ,  Lanlan Jiang ,  Mingjun Yang ,  Zucheng Cheng ,  Yu Liu ,  Yingying Liu ,  Bingbing Chen ,  Cong Chen ,  Jiafei Zhao ,  Yi Zhang

IPC: B01D53/00 ,  C01B32/50 ,  C10L3/10

CPC classification number: B01D53/002 ,  C01B32/50 ,  C10L3/108 ,  C01B2210/0009 ,  C10L2290/06 ,  B01D2257/504 ,  B01D2256/245 ,  B01D2258/05

Abstract: A device for separating and sequestrating carbon dioxide coupled with cold storage in mixed gas via hydrate method, which belongs to the technical field of application of natural gas hydrates includes a gas compression device, a refrigeration cycle device, a hydrate formation/decomposition device, a hydrate cold storage device, a water circulation device and a sensing and monitoring device; taking the separation and sequestration of biogas as an example, the refrigeration cycle device enables the cooling of biogas, decomposition of gas at all levels, hydrate, and circulating water to provide the low-temperature conditions required for hydrate formation; the hydrate cold energy storage device can fully use the latent heat of hydrate phase change to provide the required cooling capacity on the user side; the water circulation device can realize the recycling of decomposition water to ensure the continuous formation of hydrate.

公开(公告)号：US20230311031A1

公开(公告)日：2023-10-05

申请号：US18207634

申请日：2023-06-08

Applicant: Dalian University of Technology

Inventor： Kui You ,  Yihe Zhang ,  Jingkang Xu ,  Pengfei Yi ,  Meng Li ,  Xinghua Li ,  Chuanye Zhang ,  Caihua Ma ,  Weiwei Ma ,  Yiwen Zhang ,  Fangxin Han ,  Can You

IPC: B01D33/29 ,  B01D33/72 ,  B01D33/80 ,  C02F1/40

CPC classification number: B01D33/29 ,  B01D33/72 ,  B01D33/802 ,  C02F1/40

Abstract: A seesaw-type feeding device for collecting solid materials suspended in a flow field includes a suspension assembly, a material collection assembly, a joint hinge, two anti-collision blocks and an escapement shaking assembly, wherein the latter three of which are located between the suspension assembly and the material collection assembly. The suspension assembly includes a V-shaped floating body and at least three fixed bottom anchors. The material collection assembly includes a collection pocket net, a material container, a delivery part, and an annular water discharging screen mesh. The escapement shaking assembly is located behind the V-shaped floating body and faces the material collection assembly. The material collection assembly is able to shake relatively to the fluid in the flow field, and the escapement shaking assembly drives the material collection assembly to shake.

公开(公告)号：US11761930B2

公开(公告)日：2023-09-19

申请号：US17260156

申请日：2020-03-06

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yongqing Wang ,  Bo Qin ,  Kuo Liu ,  Mingrui Shen ,  Mengmeng Niu ,  Honghui Wang ,  Lingsheng Han

IPC: G01B17/08 ,  G01N29/14 ,  G01N29/44 ,  G05B19/401 ,  G06N3/04 ,  G06N3/08

CPC classification number: G01N29/4481 ,  G01B17/08 ,  G01N29/14 ,  G05B19/401 ,  G06N3/04 ,  G06N3/08 ,  G01N2291/028 ,  G01N2291/2698 ,  G05B2219/33099

Abstract: A prediction method of part surface roughness and tool wear based on multi-task learning belong to the file of machining technology. Firstly, the vibration signals in the machining process are collected; next, the part surface roughness and tool wear are measured, and the measured results are corresponding to the vibration signals respectively; secondly, the samples are expanded, the features are extracted and normalized; then, a multi-task prediction model based on deep belief networks (DBN) is constructed, and the part surface roughness and tool wear are taken as the output of the model, and the features are extracted as the input to establish the multi-task DBN prediction model; finally, the vibration signals are input into the multi-task prediction model to predict the surface roughness and tool wear.

公开(公告)号：US20230280336A1

公开(公告)日：2023-09-07

申请号：US18196618

申请日：2023-05-12

Applicant: Dalian University of Technology ,  Shenzhen Mindray Bio-Medical Electronics Co., Ltd.

Inventor： Jiangli FAN ,  Gengwen CHEN ,  Tianping XIA ,  Yi YE ,  Ziqian ZHANG ,  Qichao YAO

IPC: G01N33/50 ,  G01N33/58 ,  C09B69/00

CPC classification number: G01N33/5094 ,  G01N33/582 ,  C09B69/00

Abstract: Disclosed are a leukocyte classification reagent and kit, a classification method, an erythrocyte classification reagent and kit, and an analysis method. Both the leukocyte classification reagent and the erythrocyte classification reagent comprise a fluorescent dye represented by the general formula F. The dye can stain the nucleic acids of leukocytes and erythrocytes, therefore, during blood analysis, the classification and/or counting of leukocytes in a sample can be accurately realized, and the classification and/or counting of erythrocytes in a sample can be accurately realized, in particular the identification and/or counting of RETs. In addition, the types of dyes used in blood cell analysis may also be simplified.

公开(公告)号：US20230256396A1

公开(公告)日：2023-08-17

申请号：US18030684

申请日：2021-03-04

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Jianhua YANG ,  Linzhe LI ,  Ying LU ,  Gaohong HE ,  Jinming LU ,  Yan ZHANG

IPC: B01D67/00 ,  B01D71/02

CPC classification number: B01D67/0048 ,  B01D71/0281 ,  B01D67/0051

Abstract: In a method for preparing a zeolite CHA membrane, a gel conversion method is adopted to assist crystallization, seed solutions with different concentrations and sizes are successively coated on the surface of a porous support to obtain a seed layer, a synthetic gel is coated on the seed layer to obtain a gel layer, and then the porous support is subjected to a membrane crystallization reaction to obtain a zeolite CHA membrane. The method skips the conventional stage of converting the heterogeneous zeolite into the zeolite CHA seed, and directly takes a heterogeneous zeolite with the same secondary structural unit as that of zeolite CHA as a seed to directly prepare a zeolite CHA membrane on a support.

公开(公告)号：US11724779B2

公开(公告)日：2023-08-15

申请号：US17043787

申请日：2020-03-17

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Lei Sun ,  Chong Fu ,  Zhe Lin

IPC: B63B21/10 ,  B63B21/08

CPC classification number: B63B21/10 ,  B63B21/08

Abstract: The present invention provides a long-term mooring device. A support frame is provided on a dock. The dock is provided with a free guide roller. The free guide roller is wound with a cable. An upper end of the cable is horizontally connected to a spring fixed on a lower side of a cross arm of the support frame, through a free guide roller provided on the lower side of the cross arm of the support frame (corresponding to the free guide roller on the dock). The middle of the cable penetrates through an inertial induction self-locking connection joint fixed on an end of a platform arm. The platform arm is fixed on a platform. The present invention provides an omnidirectional restoring force for the moored platform through the elastic deformation of the springs to control the movement response of the platform within a certain range.

公开(公告)号：US20230215411A1

公开(公告)日：2023-07-06

申请号：US17792026

申请日：2021-08-31

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yulin MEI ,  Xiaoming WANG ,  Yuanxiu WANG

IPC: G10K11/162 ,  G10K11/20

CPC classification number: G10K11/162 ,  G10K11/20

Abstract: The type of acoustic absorber comprises a micro-perforated plate, a cavity behind the micro-perforated plate, a slender and curved main acoustic propagation passage communicating with the cavity, and a set of acoustic filters arranged along the main acoustic propagation passage. These acoustic filters have different cut-off frequencies and are arranged in the order of the cutoff frequencies from high to low from the open end to the closed end of the main acoustic propagation passage. The acoustic filter comprises a section of the main acoustic propagation passage and at least one cavity communicating with the main acoustic propagation passage. The type of acoustic absorber is characterized by adopting a main acoustic propagation passage to provide different phase delay for a micro-perforated plate to realize that a micro-perforated plate effectively absorbs broadband acoustic waves, and by combing the close arrangement of main acoustic propagation passage to achieve the ultra-thin structure.

公开(公告)号：US11694338B2

公开(公告)日：2023-07-04

申请号：US17415621

申请日：2020-07-23

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yongchen Song ,  Yanghui Li ,  Peng Wu ,  Xiang Sun ,  Weiguo Liu ,  Jiafei Zhao ,  Mingjun Yang ,  Lei Yang ,  Zheng Ling

IPC: G06T7/155 ,  G06V10/46 ,  G06T17/10

CPC classification number: G06T7/155 ,  G06T17/10 ,  G06V10/467 ,  G06T2207/10081 ,  G06T2207/20036

Abstract: The present invention belongs to the technical field of petroleum exploitation engineering, and discloses a 3D modeling method for cementing hydrate sediment based on a CT image. Indoor remolding rock cores or in situ site rock cores without hydrate can be scanned by CT; a sediment matrix image stack and a pore image stack are obtained by gray threshold segmentation; then, a series of cementing hydrate image stacks with different saturations are constructed through image morphological processing of the sediment matrix image stack such as dilation, erosion and image subtraction operation; and a series of digital rock core image stacks of the cementing hydrate sediment with different saturations are formed through image subtraction operation and splicing operation to provide a relatively real 3D model for the numerical simulation work of the basic physical properties of a reservoir of natural gas hydrate.

公开(公告)号：US20230185999A1

公开(公告)日：2023-06-15

申请号：US17639522

申请日：2021-07-02

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yiqiang WANG ,  Chen DU ,  Zhan KANG

IPC: G06F30/27

CPC classification number: G06F30/27 ,  G06F2111/06

Abstract: A kirigami metamaterial with tunable auxetic property under large tensions and a design method for it. The kirigami metamaterial is composed of a plurality of square unit cells in orderly arrangement. The unit cells are arrayed in periodic, gradient and inhomogeneous layouts, corresponding to the kirigami metamaterials with homogeneous, gradient and inhomogeneous auxetic properties. The design method is as follows: Firstly, the heuristic design of the unit cell is obtained by using the structural optimization method for fully considering out-of-plane deformations. Secondly, the optimization result obtained from the above step is processed by geometric reconstruction and parametric modeling, and then the auxetic properties with different geometric parameters are obtained. Finally, the kirigami metamaterial is composed of a plurality of unit cells arrayed into a specific layout. The present invention can achieve a variety of tunable auxetic trends adjusted with the tensions by modifying the cut parameters.

公开(公告)号：US20230185974A1

公开(公告)日：2023-06-15

申请号：US17779354

申请日：2021-07-16

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Shengfa WANG ,  Jun YANG ,  Na LEI ,  Zhongxuan LUO

IPC: G06F30/10 ,  G06F30/20

CPC classification number: G06F30/10 ,  G06F30/20 ,  G06F2111/10

Abstract: The present invention discloses a design and optimization method based on a self supporting ellipsoidal cavity structure. First, a three-dimensional model with initialized self supporting ellipsoidal cavities is represented by a function; then the structure of the object is analyzed, modeled and optimized by the continuity and differentiability of the function; the internal lightweighting of the model is carried out with the self supporting ellipsoidal cavities, without the need of adding a supporting structure, thus avoiding waste of materials; the intersection of self supporting ellipsoids is strictly controlled to avoid damage to self supportability within the model due to intersection; and finally, the above modeling problem is geometrically optimized to obtain an internal shape of the object optimized under given constraint conditions. The present invention greatly shortens the design and optimization cycle of the hole structure, realizes self supporting for the internal cavities of the model.