公开(公告)号：US20250026686A1

公开(公告)日：2025-01-23

申请号：US18713190

申请日：2022-12-29

Applicant: Southeast University

Inventor： Ningjun Jiang ,  Yu Zhang ,  Shiqi Liu ,  Xiangrui Xu

IPC: C04B24/00 ,  C04B14/10 ,  C04B28/00 ,  C04B103/00 ,  C12N1/20 ,  C12R1/00

Abstract: The present invention discloses a microbially induced carbonate precipitation (MICP)-based vertical barrier, and a preparation method thereof, wherein a raw material of the vertical barrier includes in-situ soil, Ca-bentonite, a bacteria-containing culture medium, and a cementing solution. The bacteria-containing culture medium comprises flocculent ureolytic bacteria flora. The proportions of dry the Ca-bentonite to in-situ soil, the bacterial-containing culture medium to the cementing solution, and the cementing solution to the Ca-bentonite are specified to be 1:2, (2˜5):1, and (1˜2.5):10, respectively, to ensure optimal performance. The present invention addresses challenges related to the insufficient impermeability of Ca-bentonite-based barriers in the application of vertical barrier, and aims to reduce both the cost and carbon emissions associated with their construction.

公开(公告)号：US12206469B2

公开(公告)日：2025-01-21

申请号：US17925505

申请日：2022-02-21

Applicant: SOUTHEAST UNIVERSITY

Inventor： Li You ,  Jie Xu ,  Mengyu Qian ,  Kelin Huang ,  Yuqi Ye ,  Wenjin Wang

IPC: H04B7/04 ,  H01Q15/00 ,  H04B7/0413

Abstract: The present invention discloses a near-field broadband uplink MIMO transmission method assisted by a dynamic metasurface antenna. The method includes: Broadband signals sent by a plurality of users distributed in a near-field region are processed with a large-size dynamic metasurface antenna as a receive antenna on a base station side, which can reduce system hardware costs and power consumption; and compared with the current hybrid beamforming based on a phase shifter and a conventional antenna, hybrid beamforming based on the dynamic metasurface antenna can effectively improve transmission performance. The present invention proposes an algorithm framework jointly designing a dynamic metasurface antenna and a baseband beamformer and including method such as matrix-weighted mean square error sum (MWMSE) minimization, alternate optimization, matrix vectorization, and MM. The present invention implements near-field broadband large-scale MIMO uplink transmission assisted by a dynamic metasurface antenna with low algorithm complexity and good convergence.

公开(公告)号：US20240418986A1

公开(公告)日：2024-12-19

申请号：US18711640

申请日：2022-12-29

Applicant: SOUTHEAST UNIVERSITY

Inventor： Yishi WENG ,  Yuning ZHANG ,  Yuchen GU ,  Lixuan ZHAGN ,  Chuang WANG ,  Ran WEI

IPC: G02B27/00 ,  G02B6/34

Abstract: A two-dimensional exit pupil expansion method for waveguide display based on polarization volume gratings (PVGs) is provided. Based on the polarized diffraction properties of the PVGs as waveguide coupling elements, a light beam from a microimage source system is introduced into and then propagates in a waveguide medium. By a composite PVG structure, a light field of a transmitted image is subjected to two-dimensional exit pupil expansion and emission, and finally incident into human eyes to achieve waveguide augmented reality imaging.

公开(公告)号：US20240395454A1

公开(公告)日：2024-11-28

申请号：US18261957

申请日：2023-02-14

Applicant: Southeast University

Inventor： Ming CHENG ,  Wei QIN ,  Xinkai ZHU ,  Wei HUA ,  Zheng WANG ,  Sa ZHU ,  Zhiyuan XU

IPC: H01F27/34 ,  H01F27/24

Abstract: According to a magnetic core considering the skin effect of magnetic flux and a design method thereof, with a cross-section of a magnetic core through which magnetic flux flows as a reference surface, the shape of the cross-section of the magnetic core is designed according to the electromagnetic characteristics, temperature characteristics, magnetic flux amplitude and operating frequency of the magnetic core, and a closed or discontinuous air path is formed inside the magnetic core by stretching the reference surface along the path of the magnetic flux, thereby forming a magnetic core having a duct structure. When a high-frequency magnetic flux is introduced into the magnetic core, the magnetic core considering the skin effect of magnetic flux and the design method thereof can reduce the weight of the magnetic core, reduce the power loss and temperature rise of the magnetic core, and suppress the skin effect of the magnetic core.

公开(公告)号：US12116478B2

公开(公告)日：2024-10-15

申请号：US18335100

申请日：2023-06-14

Applicant: Southeast University

Inventor： Sang Luo ,  Jing Hu

IPC: C08L63/00 ,  C04B24/28 ,  C08J3/20 ,  C08K5/098 ,  C08K5/17 ,  C08K5/3462 ,  C04B111/00

CPC classification number: C08L63/00 ,  C04B24/281 ,  C08J3/203 ,  C08K5/098 ,  C08K5/17 ,  C08K5/3462 ,  C04B2111/0075 ,  C08J2363/00

Abstract: The present disclosure discloses an economical epoxy resin material for epoxy asphalt with low-temperature resistance and high flexibility as well as a preparation method thereof. The material comprises 60 parts of an epoxy resin main agent, 0.4 parts to 1.6 parts of a modifying gent, 31 parts to 36.5 parts of an active curing agent, 0.5 parts to 1.5 parts of a titanate coupling agent, and 1.6 parts to 6.4 parts of a reversible deformation additive.

公开(公告)号：US12109162B2

公开(公告)日：2024-10-08

申请号：US17279608

申请日：2020-07-10

Applicant: Southeast University

Inventor： Huijun Li ,  Yunxia Ouyang ,  Aiguo Song

IPC: A61H1/02 ,  B33Y80/00

CPC classification number: A61H1/0288 ,  B33Y80/00 ,  A61H2201/149 ,  A61H2201/1638 ,  A61H2201/165

Abstract: A rope-driven soft hand function rehabilitation device includes four finger exoskeleton mechanisms, a thumb exoskeleton mechanism, and a soft rubber glove. An index-finger exoskeleton mechanism includes an index-finger distal phalanx loop, an index-finger middle phalanx loop, and an index-finger proximal phalanx loop which are mutually connected via a hinge structure. The thumb exoskeleton mechanism includes a thumb proximal phalanx loop and a thumb distal phalanx loop which are connected via a hinge structure. The rope is fastened to the hand function rehabilitation device via an aluminum sleeve which prevents the rope from slipping off during finger flexion/extension and abduction/adduction when the fingers are pulled by the rope at the palm and the hand back.

公开(公告)号：US20240328872A1

公开(公告)日：2024-10-03

申请号：US18649980

申请日：2024-04-29

Applicant: SOUTHEAST UNIVERSITY

Inventor： Aiguo SONG ,  Yuhan CHEN ,  Jingjing XU ,  Baoguo XU ,  Huijun LI

IPC: G01L1/22 ,  G01L1/20

CPC classification number: G01L1/2206 ,  G01L1/205

Abstract: A combined six-dimensional force sensor based on thin-film sputtering technology includes a force transmission table, a cross beam, a base, a top cover, a bottom cover and strain gauges. Strain gauges are sputtered on the elastomer structure to form six sets of Wheatstone bridges. The measurement method of the six-dimensional force sensor is that: an input force/moment of a certain dimension acts on the elastomer structure including the force transmission table and the cross beam through the top cover, the cross beam is deformed and resistance values of strain gauges at corresponding positions change, and output voltages of corresponding bridges change.

公开(公告)号：US12107167B2

公开(公告)日：2024-10-01

申请号：US17762929

申请日：2021-01-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Siyang Liu ,  Weifeng Sun ,  Chi Zhang ,  Shuxuan Xin ,  Shen Li ,  Le Qian ,  Chen Ge ,  Longxing Shi

IPC: H01L29/78 ,  H01L29/10 ,  H01L29/778 ,  H01L29/812

CPC classification number: H01L29/7851 ,  H01L29/1095 ,  H01L29/778 ,  H01L29/8122

Abstract: The present invention discloses a high-threshold power semiconductor device and a manufacturing method thereof. The high-threshold power semiconductor device includes, in sequence from bottom to top: a metal drain electrode, a substrate, a buffer layer, and a drift region; further including: a composite column body which is jointly formed by a drift region protrusion, a columnar p-region and a columnar n-region on the drift region, a channel layer, a passivation layer, a dielectric layer, a heavily doped semiconductor layer, a metal gate electrode and a source metal electrode. The composite column body is formed by sequentially depositing a p-type semiconductor layer and an n-type semiconductor layer on the drift region and then etching same. The channel layer and the passivation layer are formed in sequence by deposition. Thus, the above devices are divided into a cell region and a terminal region. The dielectric layer, the heavily doped semiconductor layer, the metal gate electrode and the source metal electrode only exist in the cell region, and the passivation layer of the terminal region extends upwards and is wrapped outside the channel layer. This structure can increase a threshold voltage of the device, improve the blocking characteristics of the device and reduce the size of a gate capacitance.

公开(公告)号：US20240303391A1

公开(公告)日：2024-09-12

申请号：US18552284

申请日：2022-10-27

Applicant: SOUTHEAST UNIVERSITY ,  ELECTRIC POWER RESEARCH INSTITUTE OF YUNNAN POWER GRID CO., LTD.

Inventor： Wei GU ,  Suhan ZHANG ,  Hai LU ,  Enbo LUO

IPC: G06F30/20

CPC classification number: G06F30/20

Abstract: Disclosed is a method for constructing a security region of an integrated electricity and heating system, falling into the field of energy system modeling and operational analysis. The method specifically includes: establishing a dynamic model of the integrated electricity and heating system, including a power system model, a quality-regulated heating system dynamic model, and a combined heat and power unit dynamic model; constructing, in combination with operational security constraints, a security region model of the integrated electricity and heating system considering thermal dynamics; and solving, aiming at nonlinear and nonconvex characteristics of the security region of the integrated electricity and heating system, a security region boundary by an optimization-check-based concave hull method. Compared with the related art, the method considers thermal dynamics in the integrated electricity and heating system, and accurately depicts operational features. Limited operation points are solved through the optimization-check-based concave hull method, thus guaranteeing security.

公开(公告)号：US12083064B2

公开(公告)日：2024-09-10

申请号：US17311325

申请日：2020-06-28

Applicant: SOUTHEAST UNIVERSITY

Inventor： Aiguo Song ,  Jianwei Lai ,  Huijun Li ,  Jianqing Li ,  Baoguo Xu ,  Hong Zeng ,  Jun Zhang

IPC: A61H1/02

CPC classification number: A61H1/0288 ,  A61H2201/1207 ,  A61H2201/165 ,  A61H2201/1659

Abstract: A exoskeleton finger rehabilitation training device includes an exoskeleton finger rehabilitation training mechanism including a supporting base, a finger sleeve actuating mechanism, and a finger joint sleeve connected to a power output end of the finger sleeve actuating mechanism, wherein the finger joint sleeve can be sheathed at the periphery of a finger joint to be rehabilitated, and the finger joint sleeve can be driven by the power actuation of the finger sleeve actuating mechanism to drive the finger joint to be rehabilitated in order to passively bend or stretch; the supporting base includes a profiled shell, with an inner surface of the profiled shell being configured based on the profile of the complete back of a palm or part of the back of the palm, and with the back of the profiled shell being provided with a power fixed base.