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公开(公告)号：US20230304361A1
公开(公告)日：2023-09-28
申请号：US17700555
申请日：2022-03-22
Applicant: University of Science and Technology Beijing , Shunde Graduate School, University of Science and Technology Beijing
Inventor： Haiping LIU , Qi LV , Dashan SHEN , Donghang HAN , Dongmei ZHU
IPC: E21B17/07
CPC classification number: E21B17/076
Abstract: A petroleum drill-string shock absorber includes a drill collar nipple, a driving unit, an outer shell, a helical guideway, a drill bit base, a woven metal ring and a vibration-absorbing composite beam, the vibration-absorbing composite beam consists of a sheet metal and a flexible material gasket bonded by an adhesive; the drill collar nipple is connected with the helical guideway; the helical guideway is connected with the drill bit base; the driving unit rotates on the helical guideway; the outer shell is connected with the drill bit base; a metal seal ring is configured to seal a space formed between the outer shell and the drill collar nipple, a sealed space is formed among the drill collar nipple, the outer shell and the drill bit base; the woven metal ring is placed between the helical guideway and the drill bit base configured to absorb an axial impact vibration.
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公开(公告)号：US12139974B2
公开(公告)日：2024-11-12
申请号：US17700555
申请日：2022-03-22
Applicant: University of Science and Technology Beijing , Shunde Graduate School, University of Science and Technology Beijing
Inventor： Haiping Liu , Qi Lv , Dashan Shen , Donghang Han , Dongmei Zhu
IPC: E21B17/07
Abstract: A petroleum drill-string shock absorber includes a drill collar nipple, a driving unit, an outer shell, a helical guideway, a drill bit base, a woven metal ring and a vibration-absorbing composite beam, the vibration-absorbing composite beam consists of a sheet metal and a flexible material gasket bonded by an adhesive; the drill collar nipple is connected with the helical guideway; the helical guideway is connected with the drill bit base; the driving unit rotates on the helical guideway; the outer shell is connected with the drill bit base; a metal seal ring is configured to seal a space formed between the outer shell and the drill collar nipple, a sealed space is formed among the drill collar nipple, the outer shell and the drill bit base; the woven metal ring is placed between the helical guideway and the drill bit base configured to absorb an axial impact vibration.
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公开(公告)号：US12264879B2
公开(公告)日：2025-04-01
申请号：US17585591
申请日：2022-01-27
Applicant: University of Science and Technology Beijing , Shandong Econ Energy Saving Technology Co., Ltd
Inventor： Yu Li , Changqing Yao
Abstract: A kiln system is provided, including a drying section, a preheating section, a firing section, a soaking section, a cooling section, and a decarburization section arranged between the drying section and the preheating section. The decarburization section includes an ignition zone, a hot air combustion/pyrolysis zone, and a waste heat recovery pipeline. A heat source is introduced into the ignition zone so that the temperature of the ceramsite of the raw materials with heating values in the zone is 400° C. to 900° C. The hot air combustion/pyrolysis zone is configured for combusting or pyrolyzing carbon-containing materials and organic components in the raw materials with heating values in the ceramsite. The waste heat recovery pipeline is configured for discharging decarburization exhaust gas and recovering heat released after the raw materials with heating values in the ceramsite are combusted or pyrolyzed in the decarburization exhaust gas.
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公开(公告)号：US12234521B2
公开(公告)日：2025-02-25
申请号：US18670631
申请日：2024-05-21
Applicant: Xuanhua Iron and Steel Group Co., Ltd. , University of Science and Technology Beijing , HBZX HIGH TECH CO., LTD.
Inventor： Hongbin Wang , Guangsheng Wei , Rong Zhu , Minghai Zhang , Jinlong Wang , Jianping Jia , Yongqiang Yang , Jianzhong Wang , Yunxiang Zhao , Xin Li , Ceng Li , Huan Chang
Abstract: The application provides a method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma, including: using a mixture of hydrogen rich gas and argon gas to generate hydrogen plasma for denitrification of molten steel during at least one of arc furnace smelting, ladle refining, VOD refining, and RH refining. The method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma provided in the application can effectively remove nitrogen from the molten steel by spraying a mixture of argon gas and hydrogen rich gas into the molten steel through a hollow electrode and plasma torch, reducing electrode consumption and electricity consumption per ton steel, and also reducing arc radiation heat loss, improving heating rate, thereby shortening smelting time and reducing production costs.
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公开(公告)号：US12230401B1
公开(公告)日：2025-02-18
申请号：US18626099
申请日：2024-04-03
Inventor： Hongzhen Cui , Meihua Piao , Yunfeng Peng , Shichao Wang , Longhao Zhang , Haoming Ma , Xiaoyue Zhu
Abstract: The present disclosure provides an intelligent decision reasoning method for type-based diagnosis and treatment of a cardiovascular disease, a device, and a product, and relates to the medical field. The present disclosure adopts a risk factor mining model of a cardiovascular disease and a drug attribute association mining model of the cardiovascular disease to extract relevant information from cardiovascular data, achieving precise prediction of a fine-grained cardiovascular disease type and effectively promoting precision medicine. Based on a clinical diagnostic dataset and a clinical symptom diagnosis knowledge system of the cardiovascular disease, a type-based auxiliary diagnosis model of the cardiovascular disease is constructed, and intelligent decision reasoning is performed to obtain an association rule. This achieves efficient integration of type-based decision support of the cardiovascular disease and a medical convalescence knowledge base of the cardiovascular disease, and enhances quality of a cardiovascular medical convalescence association rule set.
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Patent Agency Ranking
6.发明授权公开(公告)号：US12226826B2
公开(公告)日：2025-02-18
申请号：US17768737
申请日：2020-08-17
Applicant: University of Science and Technology Beijing
Inventor： Xin Lu , Yu Pan , Yucheng Yang , Jiazhen Zhang , Wei Xu , Bowen Liu , Ce Zhang , Jianzhuo Sun , Yanjun Liu , Xuanhui Qu
Abstract: The present invention provides a high-strength and high-plasticity titanium matrix composite and a preparation method thereof. The preparation method includes: preparing high-oxygen hydride-dehydride titanium powder using a high-temperature rotary ball grinding treatment process, in which the prepared hydride-dehydride titanium powder has a particle size of 10-40 μm, and has an oxygen content of 0.8-1.5 wt. %; preparing high-purity ultra-fine oxygen adsorbent powder using a wet grinding method of high-energy vibration ball grinding treatment process; in which a purity of the oxygen adsorbent powder is ≥99.9%, and a particle size of the oxygen adsorbent powder is ≤8 μm; mixing the high-oxygen hydride-dehydride titanium powder with the oxygen adsorbent powder in a protective atmosphere, and then press-forming the powder obtained after mixing to obtain a raw material blank; and performing atmosphere protective sintering treatment on the raw material blank to obtain a titanium matrix composite. The method prepares a titanium matrix composite reinforced by in-situ self-generating multi-scale Ca—Ti—O, TiC, TiB particles. The microstructure and grains are effectively refined, and the strength and plasticity of the material are significantly improved.
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公开(公告)号：US12221679B1
公开(公告)日：2025-02-11
申请号：US18588033
申请日：2024-02-27
Applicant: University of Science and Technology Beijing
Inventor： Hongchang Qian , Jianguo Gao , Weiwei Chang , Dawei Zhang
Abstract: Disclosed are an antimicrobial high-entropy alloy FeCoNiCrCe and a preparation method thereof, falling within the technical field of high-entropy alloys. The high-entropy alloy in the present disclosure has an expression: FeCoNiCrCex, 0.1≤x≤0.5, and a proportion of each element is a molar ratio. In the present disclosure, the microstructure and mechanical and antimicrobial performances of high-entropy alloy FeCoNiCrCex are improved by adjusting a content of Ce.
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8.发明申请公开(公告)号：US20250045500A1
公开(公告)日：2025-02-06
申请号：US18786644
申请日：2024-07-29
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.
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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
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.
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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.
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