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141.发明授权公开(公告)号：US12093634B2
公开(公告)日：2024-09-17
申请号：US18567044
申请日：2023-01-03
Applicant: SOUTHEAST UNIVERSITY
IPC: G06F30/398 , G06F30/27 , G06F30/33 , G06F30/3312 , G06F30/3315 , G06F30/392 , G06F30/3953
CPC classification number: G06F30/398 , G06F30/27 , G06F30/33 , G06F30/3312 , G06F30/3315 , G06F30/392 , G06F30/3953
Abstract: A path delay prediction method for an integrated circuit based on feature selection and deep learning. First, an integrated feature selection method based on filter methods and wrapper methods is established to determine an optimal feature subset. Timing information and physical topological information of a circuit are then extracted to be used as input features of a model, and local physical and timing expressions of cells in circuit paths are captured by means of the convolution calculation mechanism of a convolutional neural network. In addition, a residual network is used to calibrate a path delay. Compared with traditional back-end design processes, the path delay prediction method provided by the invention has remarkable advantages in prediction accuracy and efficiency and has great significance in accelerating the integrated circuit design process.
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公开(公告)号：US20240266959A1
公开(公告)日：2024-08-08
申请号：US18566102
申请日：2022-09-26
Applicant: SOUTHEAST UNIVERSITY
Inventor： Qi LIU , Weiwei ZHAI , Leilei SHI , Qinsong QIAN , Weifeng SUN , Longxing SHI
CPC classification number: H02M3/1582 , H02M1/0058 , H02M1/088
Abstract: A control method for a four-switch buck-boost converter is provided. The control method adopts four-stage control, and divides the load range into two sections and adopts different control strategies according to a critical load value corresponding to optimal control. In Boost mode, before the critical load, T1 and T2 are kept constant, T3 is a minimum value for realizing soft-switching, and T4 decreases with the increase of the load; when the critical load is reached, T4 drops to 0; and after the critical load, T1, T2, T3 and T increase with the load. In Buck mode, before the critical load, T2 and T3 are kept constant, T1 is a minimum value for realizing soft-switching, and T4 decreases with the increase of the load; when the critical load is reached, T4 drops to 0; and after the critical load, T1, T2, T3 and T increase with the load.
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公开(公告)号：US20240265181A1
公开(公告)日：2024-08-08
申请号：US18571727
申请日：2023-01-03
Applicant: SOUTHEAST UNIVERSITY
Inventor： Peng CAO , Qianqian SONG , Kai WANG
IPC: G06F30/337 , G06F119/06
CPC classification number: G06F30/337 , G06F2119/06
Abstract: An optimization method for a digital integrated circuit is provided. Under the precondition of satisfying certain timing constraints, circuit-level, path-level and gate cell-level features of a circuit are extracted to construct a leakage power optimization model, and optimization data from commercial circuit optimization tools is used to train the model to predict voltage threshold types of gate cells after circuit optimization, such that the circuit can be optimized by adjusting voltage thresholds of gate cells in a post-routing gate-level netlist, thus realizing the optimization objective of reducing leakage power.
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144.发明公开公开(公告)号：US20240243778A1
公开(公告)日：2024-07-18
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
CPC classification number: H04B7/04013 , H01Q15/0086 , 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.
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公开(公告)号：US12031222B2
公开(公告)日：2024-07-09
申请号：US18550629
申请日：2023-01-04
Applicant: SOUTHEAST UNIVERSITY
CPC classification number: C25B3/26 , C25B15/087
Abstract: A system and method for CO2 capture and electroregeneration and synchronous conversion are provided. The system includes a CO2 capture subsystem, which uses an absorption liquid to capture CO2 and generate a capture liquid; and a CO2 electroregeneration and synchronous conversion subsystem, including a cathode chamber provided with a cathode electrode, a sample inlet, and a sample outlet, an anode chamber having an anode electrode, a sample inlet connected to an outlet of the capture liquid of the CO2 capture subsystem, and a sample outlet connected to the sample inlet of the cathode chamber for introducing CO2 regenerated by anodic oxidation into the cathode chamber for electroreduction, and a balance chamber in the middle having a sample outlet connected to an inlet of the absorption liquid of the CO2 capture subsystem. The system can perform self-circulation and stably operate, to capture, regenerate and convert CO2.
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Patent Agency Ranking
公开(公告)号：US20240223046A1
公开(公告)日：2024-07-04
申请号：US17921006
申请日：2022-06-30
Applicant: SOUTHEAST UNIVERSITY
Inventor： Wei HUA , Zhiheng ZHANG , Wenfei YU , Peixin WANG
Abstract: A stator structure of a magnetic levitation flux-switching motor includes a stator of a modular structure and a motor housing. A modular stator includes front and rear side winding end heat dissipation modules, modular stator left and right wings, a modular stator permanent magnet, front side magnetic conduction column left and right wings, an inter-front side and inter-rear side magnetic conduction column permanent magnets, insulating layers, a stator winding, and rear side magnetic conduction column right and left wings. The front side and rear side winding end heat dissipation modules are of hollow structures, and are symmetrically provided with a cooling medium inlet and a cooling medium outlet, a cooling medium channel is disposed inside a hollow cavity, one side of the heat dissipation module is a smooth curved surface, and good thermal contact can be achieved between the heat dissipation module and the stator winding and the insulating layer.
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公开(公告)号：US20240209261A1
公开(公告)日：2024-06-27
申请号：US17909718
申请日：2022-02-15
Applicant: SOUTHEAST UNIVERSITY
Inventor： Songyu LIU , Xiang ZHANG , Guanghua CAI , Ying ZHANG , Yitong LI , Yizhao LIU
IPC: C09K17/10 , C04B14/10 , C04B28/10 , C04B38/10 , C04B103/40 , C04B111/00 , C04B111/40
CPC classification number: C09K17/10 , C04B14/10 , C04B28/105 , C04B38/103 , C04B2103/402 , C04B2111/00017 , C04B2111/40
Abstract: The present application belongs to the technical field of civil and architectural engineering materials, and in particular relates to an environmental and low-carbon foamed lightweight soil prepared by using CO2 and MgO as raw materials. Raw material compositions of the carbon sequestration foamed lightweight soil include, in parts by weight, 10 to 200 parts of MgO, 10 to 100 parts of a filler, 2 to 45 parts of a CO2 bubble cluster and 20 to 400 parts of water. The present application is made in view of the problems of large carbon emission and serious energy consumption caused by a cement solidification agent used in traditional foamed lightweight soil.
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148.发明公开公开(公告)号：US20240195462A1
公开(公告)日：2024-06-13
申请号：US17786380
申请日：2021-10-12
Applicant: Southeast University
Inventor： Li YOU , Xiaoyu QIANG , Yuqi YE , Yan HUANG , Wenjin WANG , Xiqi GAO
IPC: H04B7/0456 , H04B7/185
CPC classification number: H04B7/0456 , H04B7/18513
Abstract: Disclosed is a transmit method based on satellite massive Multiple-Input Multiple-Output (MIMO) integrated sensing and communication, where a satellite end is equipped with a massive MIMO array to implement an integrated sensing and communication system. The satellite end sends a communication signal to multiple user terminals based on statistical properties of electromagnetic wave propagation, and detects multiple targets simultaneously, thus realizing simultaneous communication of the satellite end with the user terminals and sensing for the targets. The present disclosure fully utilizes the spectrum resources, implements a flexible switch between wireless communication and target sensing functions based on a satellite, and mitigates the effects of the beam squint on system performance, thus greatly improving communication performance and radar resolution and being applicable for construction of an integrated network of space, air, ground and sea to achieve global coverage.
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公开(公告)号：US20240178768A1
公开(公告)日：2024-05-30
申请号：US18550652
申请日：2023-04-12
Applicant: SOUTHEAST UNIVERSITY
Inventor： Wei WANG , Weijie TIAN , Ming CHENG
CPC classification number: H02P5/48 , H02P21/141 , H02P21/22 , H02P27/06
Abstract: A control method for a semi-centralized open winding multi-motor drive system includes: first, measuring current, voltage and position signal, computing system thrust by a velocity loop; then, distributing the thrust to each motor, converting the thrust into q axis current, computing dq axis voltages required for each motor by a current loop, and transforming the voltage demand to abc coordinate system through coordinate transformation; subsequently, modulating the voltage of each motor into a duty ratio instruction to judge whether the motor is in an over-modulated operating area, and performing over-modulation processing on the voltage in the over-modulated area; and finally, distributing the duty ratio instructions to independent and shared inverters. The control method of the present disclosure can reduce the hardware cost and improve the safety and reliability of the system.
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150.发明公开公开(公告)号：US20240132403A1
公开(公告)日：2024-04-25
申请号：US18276065
申请日：2021-08-19
Applicant: SOUTHEAST UNIVERSITY
Inventor： Chunxiang QIAN , Xinwei REN , Qinwen CHEN
CPC classification number: C04B16/00 , C04B7/02 , C04B7/323 , C04B40/0039 , C04B2111/72
Abstract: A color-adjustable repairing agent and a preparation method therefor, and concrete containing the repairing agent are disclosed in the present invention; the repairing agent is a mixture of microbial powder, dopamine and a calcium source immobilized by cement; and according to total mass of the mixture, a mass percentage of the microbial powder is 44%-54%, a mass percentage of the dopamine is 1%-5%, and a mass percentage of the calcium source is 44%-54%; according to the present invention, dopamine is mixed into a microbial self-repairing agent, a cement-immobilized microbial self-repairing agent is used for preparing repairing agent particles, a crack area of microbial self-repairing concrete is repaired, and repairing performance of the concrete and a color of a repairing product of the crack area are tested.
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