公开(公告)号：US20250045500A1

公开(公告)日：2025-02-06

申请号：US18786644

申请日：2024-07-29

Applicant: North China University of Technology ,  University of Science and Technology Beijing

Inventor： Lifeng Zhang ,  Haojian Duan ,  Jujin Wang ,  Yuexin Zhang ,  Qilan Li ,  Ying Ren ,  Wen Yang ,  Wei Chen

IPC: G06F30/28 ,  G06F111/10 ,  G06F113/08

Abstract: A method for predicting floating times of inclusions during refinements of molten steel includes: predicting a macroscopic multiphase flow field of the molten steel refining, injecting the inclusions into the multiphase flow field uniformly and randomly, determining a capture condition of the inclusions, calculating motion trajectories of the inclusions injected into the multiphase flow field, outputting captured inclusions' information through comparing the motion trajectory of the inclusion and the capture condition, and obtaining an average floating time, a relationship between a removal rate and the floating time, and the complete floating time through analyzing the captured inclusions' information. This method not only considers physical properties and sizes of the inclusions themselves but is also closely related to the refining process and the flow field in the refinement, and the results can provide theoretical basis for quantitative evaluation and optimization of the refining process and its parameters.

公开(公告)号：US12146200B1

公开(公告)日：2024-11-19

申请号：US18655340

申请日：2024-05-06

Applicant: University of Science and Technology Beijing

Inventor： Qing Liu ,  Zicheng Xin ,  Jiangshan Zhang

IPC: C21C5/30 ,  C21C7/00

Abstract: A method for controlling a temperature of a molten steel during ladle furnace (LF) refining based on interpretable machine learning includes: acquiring process data of the LF refining and a target temperature of the molten steel during the LF refining; acquiring a prediction model for the temperature of the molten steel during the LF refining; calculating a base value for prediction of the temperature of the molten steel, SHapley Additive explanations (SHAP) values of key factor parameters, and a relationship trend between the key factor parameters and the SHAP values; and calculating a predicted value of the temperature of the molten steel during the LF refining, and acquiring a control result for the temperature of the molten steel during the LF refining according to the relationship trend and the predicted value of the temperature of the molten steel during the LF refining.

公开(公告)号：US12128893B2

公开(公告)日：2024-10-29

申请号：US18396745

申请日：2023-12-27

Applicant: University of Science and Technology Beijing

Inventor： Jingliang Duan ,  Liming Xiao ,  Junjie Zhao ,  Guangyuan Yu ,  Xuan Li ,  Chen Huang ,  Fei Ma

IPC: B60W30/095 ,  B60W60/00

CPC classification number: B60W30/0956 ,  B60W60/0015 ,  B60W2540/18 ,  B60W2556/10

Abstract: An intervention-based shared control method and apparatus in forward collision avoidance scenario of autonomous vehicle includes: acquiring vehicle state data of the autonomous vehicle and inputting the vehicle state data into a constructed forward collision avoidance control model to obtain an optimal nominal collision avoidance trajectory of the autonomous vehicle; and acquiring steering input data of a driver in controlling the autonomous vehicle, and obtaining the shared control method in the forward collision avoidance scenario of the autonomous vehicle. The present disclosure proposes a vehicle model decoupling method for control solution and risk prediction in a high-velocity forward collision avoidance scenario.

公开(公告)号：US20240286143A1

公开(公告)日：2024-08-29

申请号：US18581675

申请日：2024-02-20

Applicant: University of Science and Technology Beijing ,  Suzhou Weihang Environmental Technology Co., LTD.

Inventor： Chen HONG ,  Yanxiao SI ,  Jirong LI ,  Yang WANG

IPC: B02C23/16 ,  B02C18/16

CPC classification number: B02C23/16 ,  B02C18/16

Abstract: Solid-liquid separation equipment includes a pulverizing and drying device. The pulverizing and drying device includes a pulverizing device and a drying device connected with one another. The pulverizing device has a pulverizing shell, an inlet, a main shaft and impellers, and the main shaft and the impellers are arranged in the pulverizing shell. The impellers are configured to rotate around the main shaft. The inlet forms a sidewall of the pulverizing shell and is intersected with the main shaft or an extension line of the main shaft. A gap is defined between an outer peripheral end of the impeller and the wall of the pulverizing shell. The sludge is efficiently and deeply dried in a condition with no phase change. The sludge is graded, pulverized and dried. During the pulverizing and drying process, the water is liquefied and centrifugally separated, and the water is not completely phase-transformed and removed.

公开(公告)号：US12041602B1

公开(公告)日：2024-07-16

申请号：US18395771

申请日：2023-12-26

Applicant: University of Science and Technology Beijing

Inventor： Lei Sun ,  Yuan Zhu ,  Jianquan Wang ,  Wei Li ,  Sha Li ,  Yang Zhang

IPC: H04W72/1263 ,  H04W72/0446 ,  H04W72/542 ,  H04W72/543

CPC classification number: H04W72/1263 ,  H04W72/0446 ,  H04W72/542 ,  H04W72/543

Abstract: A 5G-TSN resource joint scheduling apparatus includes: a state information acquisition module, a scheduling decision making module, and a configuration module. The state information acquisition module is configured to acquire bottom-layer network information, and process the acquired bottom-layer network information to obtain state information, the bottom-layer network information includes channel information, gate control list information of a TSN domain, and queue information in a base station. The scheduling decision making module is configured to obtain a result of decision making based on the state information output by the state information acquisition module using a DDPG-based reinforcement learning model, the result of decision making includes whether to allocate resources for a current queue and a number of resources actually allocated to the current queue. The configuration module is configured to convert the result of decision making to one or more instructions understandable by the base station to configure the base station.

公开(公告)号：US20240228297A1

公开(公告)日：2024-07-11

申请号：US18398077

申请日：2023-12-27

Applicant: University of Science and Technology Beijing

Inventor： Yue ZHANG ,  Zhaozhao XIONG ,  Zhuo KANG ,  Fulong DAI ,  Shuang HU ,  Kaikai MA ,  Yifan ZHAO ,  Yaxin PAN ,  Xiao HU

IPC: C01B32/194 ,  B01D1/00 ,  B01J13/00 ,  C01B32/198 ,  C02F1/14

CPC classification number: C01B32/194 ,  B01D1/0035 ,  B01J13/0091 ,  C01B32/198 ,  C02F1/14 ,  C01P2004/04

Abstract: A composite aerogel based on graphdiyne motif arrangement and a preparation method thereof are provided by the embodiments of the disclosure, belonging to the technical field of photothermal evaporation materials, including firstly growing graphdiyne on a surface of the graphene oxide to obtain a graphdiyne-coated graphene oxide, taking an additional graphene oxide, adding the additional graphene oxide and the graphdiyne-coated graphene oxide obtained by the coupling reaction into pure water, and ultrasonically mixing to obtain a mixed dispersion, adding a polyvinyl alcohol aqueous solution into the mixed dispersion, and transferring to a reaction kettle after ultrasonic mixing, putting the reaction kettle after sealing into a blast drying box for hydrothermal reaction to obtain a gel structure, and cleaning the gel structure, and freeze-drying to obtain a composite aerogel containing graphdiyne-coated reduced graphene oxide and reduced graphene oxide.

公开(公告)号：US11945167B1

公开(公告)日：2024-04-02

申请号：US18295578

申请日：2023-04-04

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： Pei Zhang ,  Xiaoming Wang ,  Benli Luan ,  Min Jiang

IPC: B29C64/357 ,  B07B1/00 ,  B07B1/28 ,  B22F10/73

CPC classification number: B29C64/357 ,  B07B1/005 ,  B07B1/28 ,  B22F10/73

Abstract: The present disclosure relates to a three-degree-of-freedom convenient mobile powder recovery device and a recovery method. The three-degree-of-freedom convenient mobile powder recovery device includes: a powder recovery module, a three-degree-of-freedom adjusting module and a drying and sieving module, wherein the powder recovery module is arranged on the three-degree-of-freedom adjusting module and used to recover powder; and the drying and sieving module is arranged on the three-degree-of-freedom adjusting module, connected to the powder recovery module and used to dry and sieve powder recovered by the powder recovery module. The three-degree-of-freedom convenient mobile powder recovery device has a simple structure, which is convenient to be operated. The height and position of the three-degree-of-freedom convenient mobile powder recovery device can be adjusted automatically, so that the recovery device is suitable for the setting of laser processing systems with various heights in the telescopic range.

公开(公告)号：US11911826B2

公开(公告)日：2024-02-27

申请号：US17200475

申请日：2021-03-12

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： Gang Chen ,  Mingli Qin ,  Qiying Tao ,  Xuanhui Qu

IPC: B22F9/04 ,  B33Y70/00 ,  B01J2/16 ,  B22F1/052

CPC classification number: B22F9/04 ,  B01J2/16 ,  B22F1/052 ,  B33Y70/00 ,  B22F2009/044 ,  B22F2201/02 ,  B22F2201/11 ,  B22F2202/15 ,  B22F2301/205

Abstract: A method of preparation of titanium and titanium alloy powder for 3D printing is based on a fluidized bed jet milling technique. Hydride-dehydrite titanium powder and titanium alloy powder are used as main raw material powder, jet milling and shaping are carried out in shielding atmosphere of nitrogen or argon, and finally high-performance titanium and titanium alloy powder meeting the requirements of 3D printing process is obtained. The titanium and titanium alloy powder prepared using this method has a narrow particle size distribution, approximately spherical shape, and controllable oxygen content.

公开(公告)号：US11900255B2

公开(公告)日：2024-02-13

申请号：US18183402

申请日：2023-03-14

Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING

Inventor： Yanping Bao ,  Ruixuan Zheng

IPC: G06N3/08

CPC classification number: G06N3/08

Abstract: The invention is in the field of iron and steel metallurgy, specifically a method and system for determining the amount of alloy added during the converter tapping process. Given that the LSTM neural network has a strong ability to capture nonlinear relationships, the invention builds an alloy element yield prediction model based on the LSTM neural network. Because different alloy elements have different factors that affect their yield, that is, different model input variables, different LSTM models are established for training. Furthermore, the invention uses integer linear programming to combine the yield prediction results to determine the alloy addition amount. This method not only finds the optimal alloy proportioning scheme quickly, but it also improves the component hit rate and the stability of steel products in the converter steelmaking process, obtains the lowest total cost, effectively reduces alloying costs, and has a good application prospect.

公开(公告)号：US20230407442A1

公开(公告)日：2023-12-21

申请号：US18125173

申请日：2023-03-23

Applicant: University of Science and Technology Beijing

Inventor： You WANG ,  Zhangjian ZHOU

IPC: C22C33/06 ,  C22C33/00 ,  C22C38/34 ,  C22C38/22 ,  C22C38/24 ,  C22C38/00

CPC classification number: C22C33/06 ,  C22C33/006 ,  C22C38/002 ,  C22C38/22 ,  C22C38/24 ,  C22C38/34

Abstract: Disclosed are a high strength-ductility matched oxide-particles dispersion steel, a preparation method and application thereof, belonging to the technical field of novel structural materials. The high strength-ductility matched oxide-particles dispersion steel comprises the following components in percentage by mass: chromium (Cr) 11.0-13.0 percent (%), tungsten (W) 1.0-2.0%, vanadium (V) 0.1-0.2%, yttrium (Y) 0.3-0.4%, oxygen (O) 0.05-0.15%, silicon (Si) 1.5-2.5%, carbon (C)≤0.0016%, with iron (Fe) and unavoidable impurities accounting for a rest. The high strength-ductility matched oxide-particles dispersion steel in the present application is prepared, using a powder metallurgical preparation method, by introducing high-content of silicon elements and introducing high-density oxide particles with a complete core-shell structure using a specific heat treatment regime.