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41.发明申请公开(公告)号：US20200033496A1
公开(公告)日：2020-01-30
申请号：US16343407
申请日：2018-03-30
Inventor： Zhenlei LI , Xueqiu HE , Dazhao SONG , Shengquan HE , Donghui LI
Abstract: A monitoring and forewarning method for coal-rock dynamic disasters based on an electromagnetic radiation and an earth-sound monitoring includes the following steps: (1) calculating the weighted average value of research parameter P(t) during a time period according to the monitoring data collected by the electromagnetic radiation and the earth-sound monitoring system in real time; (2) calculating D(t), the deviation value of P(t); (3) calculating |D(t)| as the deviation threshold value, the average value of |D(t)| during period of normal mining of the working surface; (4) calculating DS, the number of times that D(t) is greater than |D(t)| in one day; (5) normalizing DS to obtain the monitoring and forewarning index ε; (6) forewarning the hazard state of dynamic disaster of the working surface in real time according to ε and forewarning method, determining hazard level.
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42.发明申请公开(公告)号：US20190054521A1
公开(公告)日：2019-02-21
申请号：US16169570
申请日：2018-10-24
Applicant: University of Science and Technology Beijing
Inventor： Jingyuan Li , Mingfan Qi , Yulai Chen , Huiping Hong , Jianxin Xie
Abstract: The present invention belongs to the field of metal processing and fabrication, and particularly relates to an apparatus for high-throughput screw caster of a multi-component gradient metal material from elongate materials, such as multi-component alloy pipes, rods, profiles, and other such materials, having in the lengthwise direction a continuous gradient distribution of chemical components. The apparatus includes an online powder flow-rate regulation system, a rotary feed system, a heating system, a heat insulation system, a motor drive system, a blank forming system and a control system. Due to the adoption of the above technical solution, the apparatus of the present invention is simple in structure, and easy to use and control.
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公开(公告)号：US10150058B2
公开(公告)日：2018-12-11
申请号：US14829259
申请日：2015-08-18
Applicant: Princeton University , Tsinghua University , University of Science and Technology Beijing
Inventor： Howard A. Stone , Jiang Li , Haosheng Chen
Abstract: Emulsion breaking and phase separation is achieved by droplet adhesion. An emulsion breaking device includes a channel having distinct adjacent zones with distinctly different surface wettability characteristics, namely, solvophilic and solvophobic surfaces. The device is positioned such that the upstream portion of the device is configured to be wetted by the continuous phase of the emulsion, and the downstream portion of the device is configured to be wetted by the dispersed phase of the emulsion. As the emulsion flows from the upstream zone to the downstream zone, the change in surface wettability characteristics promotes adhesion of the dispersed phase as the dispersed phase wets the surface of the downstream portion of the channel, which results in breaking of the emulsion. Subsequent collection of the broken emulsion in a collection vessel results in separation of the disparate phases to facilitate their recapture and recycling.
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公开(公告)号：US20170359177A1
公开(公告)日：2017-12-14
申请号：US15542211
申请日：2015-02-13
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
CPC classification number: H04L9/3026 , H04L9/0643 , H04L9/3033 , H04L9/3218
Abstract: A cryptographic decision-making of set membership is a method or system which make a secure decision-making for positive membership e∈S or negative membership e∉S in an unforgeable and non-repudiation way for any element e and a set S. The proposed method of the present invention comprises: acquire a set U={e1, . . . , en} and map each element ei in U into a random point vi in a cryptography space; acquire a set S={e′1, . . . , e′m}⊂U, determine a random point v′i corresponding to each element e′i in the set S, and construct a function ƒS(x) according to all random points v′i; introduce a random secret γ to generate ƒS(γ) by using the function ƒS(x), and produce a public parameter mpk according to the random secret γ; and generate the cryptographic representation of set S by using the function ƒS(γ) and the public parameter mpk. In the embodiments, we provide two kinds of cryptographic representations of set, including Poles-based Aggregation and Zeros-based Aggregation, to make the decision on positive membership ei∈S and negative membership ei∉S.
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公开(公告)号：US20170297702A1
公开(公告)日：2017-10-19
申请号：US15467449
申请日：2017-03-23
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Wei He , YuNan Chen , Tong Lv , Yao Yu , ChangYin Sun
Abstract: The present invention provides a method for controlling the oscillation of flapping-wing air vehicle, which comprises the following steps: calculating the kinetic energy, potential energy and virtual work of the system using the flexible wing with the two-degree of freedom as the research object; establishing system dynamics model based on the Hamilton's principle; setting the boundary control rate according to said system dynamics model wherein said boundary control rate includes F(t) and M(t), said F(t) is the inputted boundary control force, and said M(t) is the inputted boundary torque; and controlling the flexible wings according to the system dynamics model in combination with the boundary control rate. The present invention establishes the system dynamics model based on the Hamilton's principle, set the boundary control rate according to said system dynamics model, sufficiently considers the situation of distributed disturbance occurring at the boundary and effectively prevents the flexible wings deformation caused by the external disturbances.
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Patent Agency Ranking
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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49.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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