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公开(公告)号：US10822938B2
公开(公告)日：2020-11-03
申请号：US16833806
申请日：2020-03-30
Inventor： Weiyao Zhu , Kun Huang , Zhen Chen , Ming Yue , Zhiyong Song , Hua Li , Baichuan Wang , Debin Kong
Abstract: A method of optimizing well spacing for shale gas development is provided. It belongs to the technical field of hydrocarbon reservoir exploration and development. The method comprises: firstly verifying block area based on the explored geological structure; analyzing the connection situation of a shale reservoir, identifying the minimum developing area units; calculating the recoverable reserves of the units, confirming the candidate units; drilling representative shale cores and analyzing related physical properties; calculating seepage field and pressure field using unified multi-field, multi-flow-regime, and multi-scale mathematical models; calculating the effective recoverable area of each well; and arranging wells based on the rule that the interference among wells is not larger than 10%. Considering the fluid-solid coupling effects, the method can define appropriately well spacing for shale gas exploration and enhance effectively the output of shale gas.
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公开(公告)号：US20190144972A1
公开(公告)日：2019-05-16
申请号：US16246991
申请日：2019-01-14
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Shengen Zhang , Bo Liu , Xueying Lan
Abstract: A method for controlling a microstructure of a recycled aluminum alloy includes steps of: degassing and removing inclusions from the molten aluminum alloy, refining grains and controlling the deformed microstructure. Good microstructures of the deformed aluminum alloy can be obtained after degassing by gas flushing, removing the inclusions by filtering, refining the grains by adding a modifier, and extruding or rolling or forging. The present invention provides desirable results of degassing and impurity removal. Contents of hydrogen and inclusions in the refined recycled molten aluminum alloy are 0.02-0.26 ml/100 g Al and 0.4-0.7 area % metallographic field respectively.In an aluminum alloy billet, an average grain size is 25-50 μm and a short rod-shaped or elliptical second phase is 10-100 nm. In the deformed aluminum alloy, a grain aspect ratio is 10:1-100:1 and short rod-shaped or elliptical particles are 5-80 nm.
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公开(公告)号：US20170013009A1
公开(公告)日：2017-01-12
申请号：US15252223
申请日：2016-08-31
Applicant: University of Science and Technology Beijing
Inventor： Lun Xie , Weize Li , Zhiliang Wang
IPC: H04L29/06
CPC classification number: H04L63/1433
Abstract: A test method and system for PLC security defense device are provided. The method including: acquiring by the first test end the information about the device under test, involving the type of communication mode, the type of PLC, the attack type and/or attack rule; after the attack messages to the device under test being generated and sent to the device under test, obtaining by the first test end the assessment results of the PLC security defense device on the basis of the second test end's response message. This is a fast, objective and thorough assessment method to testify security defense function of the device under test.
Abstract translation: 提供了PLC安全防护装置的测试方法和系统。 该方法包括：通过第一测试端获取关于被测设备的信息，涉及通信模式的类型，PLC的类型，攻击类型和/或攻击规则; 在发送到被测设备的攻击消息发送到被测设备后，根据第二测试端的响应消息，通过第一测试端获取PLC安全防御设备的评估结果。 这是一种快速，客观和彻底的评估方法，用于证明被测设备的安全防范功能。
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84.发明授权公开(公告)号：US09322083B2
公开(公告)日：2016-04-26
申请号：US14419683
申请日：2013-01-17
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Shengen Zhang , Hu Liu , Dean Pan , Jianjun Tian , Min Yang
CPC classification number: C22B59/00 , C22B7/005 , C22B7/007 , Y02P10/234
Abstract: The invention belongs to the field of recycling of resources, in particular to a method for waste rare earth luminescent material by dual hydrochloric acid. First hydrochloric acid was used to dissolve the red phosphor powder (Y2O3:Eu) priority, and yttrium-rich rare earth chloride solution and residue were obtained after filtered. Residue's major components were green and blue phosphor powder, and the removal of Ca2+ in filtrate was conducted by using Na2SO4, and CaSO4 precipitation separation was conducted to get rich rare earth chloride solution, europium and yttrium. Residue was mixed with alkali to perform alkaline fusion at high temperature to decompose green and blue powder, then sodium aluminate, magnesium, barium and rare earth oxides were obtained. Alkaline fusion products were washed with water, and filtered, and then sodium aluminate solution and residues containing rare earth oxides were obtained.
Abstract translation: 本发明属于资源循环利用领域，特别涉及一种双重盐酸废稀土发光材料的制造方法。 使用第一盐酸溶解红色荧光体粉末（Y2O3：Eu），过滤后得到富钇稀土氯化物溶液和残留物。 残渣的主要成分为绿色和蓝色荧光粉，用Na 2 SO 4除去滤液中的Ca2 +，进行CaSO4沉淀分离，得到富稀土氯化物溶液，铕和钇。 残留物与碱混合，在高温下进行碱性熔融分解绿色和蓝色粉末，然后获得铝酸钠，镁，钡和稀土氧化物。 碱性熔融产物用水洗涤，过滤，然后得到铝酸钠溶液和含有稀土氧化物的残余物。
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85.发明申请公开(公告)号：US20150225813A1
公开(公告)日：2015-08-13
申请号：US14419683
申请日：2013-01-17
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Shengen Zhang , Hu Liu , Dean Pan , Jianjun Tian , Min Yang
CPC classification number: C22B59/00 , C22B7/005 , C22B7/007 , Y02P10/234
Abstract: The invention belongs to the field of recycling of resources, in particular to a method for waste rare earth luminescent material by dual hydrochloric acid. First hydrochloric acid was used to dissolve the red phosphor powder (Y2O3:Eu) priority, and yttrium-rich rare earth chloride solution and residue were obtained after filtered. Residue's major components were green and blue phosphor powder, and the removal of Ca2+ in filtrate was conducted by using Na2SO4, and CaSO4 precipitation separation was conducted to get rich rare earth chloride solution, europium and yttrium. Residue was mixed with alkali to perform alkaline fusion at high temperature to decompose green and blue powder, then sodium aluminate, magnesium, barium and rare earth oxides were obtained. Alkaline fusion products were washed with water, and filtered, and then sodium aluminate solution and residues containing rare earth oxides were obtained.
Abstract translation: 本发明属于资源循环利用领域，特别涉及一种双重盐酸废稀土发光材料的制造方法。 使用第一盐酸溶解红色荧光体粉末（Y2O3：Eu），过滤后得到富钇稀土氯化物溶液和残留物。 残渣的主要成分为绿色和蓝色荧光粉，用Na 2 SO 4除去滤液中的Ca2 +，进行CaSO4沉淀分离，得到富稀土氯化物溶液，铕和钇。 残留物与碱混合，在高温下进行碱性熔融分解绿色和蓝色粉末，然后获得铝酸钠，镁，钡和稀土氧化物。 碱性熔融产物用水洗涤，过滤，然后得到铝酸钠溶液和含有稀土氧化物的残余物。
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Patent Agency Ranking
公开(公告)号：US20140247061A1
公开(公告)日：2014-09-04
申请号：US14195578
申请日：2014-03-03
Applicant: INSTITUTE OF PHYSICS, CHINESE ACADEMY OF SCIENCES , INSTITUTE FOR RADIOPHYSICS AND ELECTRONICS, NAS OF UKRAINE , UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING , BEIJING HUARONG TIANCHUANG SUPERCONDUCT TECHNOLOGY DEVELOPMENT CO., LTD.
Inventor： Liang SUN , Xu WANG , Jia WANG , Yun WU , Yusheng HE , Hong LI , Jiangming HUANG , Sheng LUO , Mykola CHERPARK , Valerii SKRESANOV , Oleksandr BARANNYK
CPC classification number: G01N22/00 , G01F23/284 , G01R27/04 , G01S13/88 , G01S13/89
Abstract: A measuring whispering-gallery-mode resonator, comprising: a dielectric resonating body with a rotation axis; a superconducting sample under test, which is mounted to the resonating body; a coupling unit for coupling a measuring waveguide with the resonating body, wherein one side of the resonating body connected with the coupling unit is provided with a first endplate, wherein m coupling holes penetrate through the first endplate, and centers of the m coupling holes are arranged to be evenly spaced along a circle whose center is on the rotation axis; the coupling unit has a feeder line which is a coaxial waveguide, wherein an axis of the coaxial waveguide coincides with the rotation axis, and one end surface of the coaxial waveguide, which is perpendicular to the rotation axis, abuts to the first endplate; and the axial index of operated whispering gallery mode in the resonator is an integer multiple of the number m of the coupling holes.
Abstract translation: 一种测量耳语 - 画廊型谐振器，包括：具有旋转轴的介电谐振体; 被测试的超导样品，其被安装到谐振体; 耦合单元，用于将测量波导耦合到谐振体，其中与耦合单元连接的谐振体的一侧设置有第一端板，其中m个耦合孔穿过第一端板，并且m个耦合孔的中心是 布置成沿着其中心在旋转轴线上的圆圈均匀间隔; 耦合单元具有作为同轴波导的馈电线，其中同轴波导的轴线与旋转轴线重合，同轴波导的垂直于旋转轴线的一个端面邻接于第一端板; 并且谐振器中操作的耳语廊模式的轴向指数是耦合孔的数量m的整数倍。
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87.发明申请公开(公告)号：US20250111521A1
公开(公告)日：2025-04-03
申请号：US18785108
申请日：2024-07-26
Inventor： Lifeng ZHANG , Haojian DUAN , Dinghan LI , Yuexin ZHANG , Wei CHEN , Ying REN
Abstract: A method analyzes global average grayscale change of tundish ink tracing experiment. The method includes the following steps: building a water model based on a prototype size and production parameters of a tundish; carrying out experiments by using the water model to obtain a video file of the ink tracing; processing the video file and extracting a characteristic curve of a global average grayscale changing with the time; analyzing the characteristic curve, and extracting a global peak grayscale time, a global tracer residual volume and a global emptying time as indicators for evaluating a tundish structure and flow characteristics of the tundish structure.
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公开(公告)号：US20240383817A1
公开(公告)日：2024-11-21
申请号：US18504236
申请日：2023-11-08
Applicant: UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING
Inventor： Zifu LI , Yaping LYU , Xuemei WANG , Xiaoqin ZHOU , Rui FENG , Xiuwei AO , Shikun CHENG
Abstract: Disclosed are an integrated method and an integrated system for resource recovery of source-separated urine. The integrated method for resource recovery of the source-separated urine includes: mixing the source-separated urine with an alkali metal peroxysulphate to obtain a mixture, and subjecting the mixture to evaporation-concentration by heating to obtain condensed water and a liquid compound fertilizer, where the liquid compound fertilizer includes urea, a phosphorus salt, and a potassium salt.
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89.发明公开公开(公告)号：US20240254051A1
公开(公告)日：2024-08-01
申请号：US18290398
申请日：2022-05-09
Applicant: ZIBO CITY LUZHONG REFRACTORIES CO., LTD. , THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING , ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD.
Inventor： Junhong CHEN , Jisheng FENG , Yuanping JIA , Bin LI , Bo ZHU , Guangqi LI , Yutao GUO
IPC: C04B35/44 , C04B35/645
CPC classification number: C04B35/44 , C04B35/645 , C04B2235/3208 , C04B2235/3222 , C04B2235/3244 , C04B2235/5436 , C04B2235/656 , C04B2235/77
Abstract: The present invention belongs to the technical field of refractory materials, and disclosed are a high-purity compact calcium hexa-aluminate-based refractory material, a preparation method therefor, and a working lining using the same. The mixing ratio is adjusted according to the chemical composition of the final product to contain raw materials containing CaO, Al2O3 and ZrO2, the mixing ratio enabling the ratio of the chemical composition CaO:Al2O3:ZrO2 calculated according to parts by mass to be 45.5-95.5%:2.0-8.4%:0-50%; and the chemical composition are placed into a high-temperature furnace and a mold for hot-pressing is carried out, the maximum temperature is 1550-1800° C., and the hot-pressing strength is 0.5-30 MPa. In the present invention, when no sintering agent is added, a hot-pressing sintering process is employed according to a proportion to obtain a high-purity compact calcium hexa-aluminate-based refractory material, and the refractory material has excellent resistance to molten steel erosion and thermal shock stability, and can be widely applied in metallurgy, building materials and petrochemical industries as well as other industries. The preparation method is scientific and reasonable, product purity is high, and the prepared refractory material product can increase a device operation period; in addition, production costs are reduced, and energy-saving and emission-reducing effects are achieved.
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90.发明公开公开(公告)号：US20240246862A1
公开(公告)日：2024-07-25
申请号：US18290388
申请日：2022-05-09
Applicant: ZIBO CITY LUZHONG REFRACTORIES CO., LTD. , THE UNIVERSITY OF SCIENCE AND TECHNOLOGY BEIJING , ZIBO LANGFENG HIGH TEMPERATURE MATERIALS CO., LTD.
Inventor： Junhong CHEN , Jisheng FENG , Yuanping JIA , Bin LI , Bo ZHU , Guangqi LI , Yutao GUO
IPC: C04B35/119 , B22D41/02 , C04B35/645
CPC classification number: C04B35/119 , B22D41/02 , C04B35/645 , C04B2235/3206 , C04B2235/3208 , C04B2235/3217 , C04B2235/3244 , C04B2235/5427 , C04B2235/5436 , C04B2235/656 , C04B2235/77 , C04B2235/9676
Abstract: Disclosed in the present invention are a corrosion-resistant refractory material, preparation method therefor, and the use thereof. In the corrosion-resistant refractory material, a material phase of the refractory material comprises corundum and one or more material phases selected from CA6, C2M2A14, CM2A8, and ZrO2. The refractory material has low a low amount of a high-temperature liquid phase, a uniform pore structure, and good thermal shock stability; can be widely used in steel-making production lines and also in the refractory linings of rotary kilns, and has good erosion resistance and low thermal conductivity, and the performance thereof is obviously superior to that of many existing refractory materials such as silico carbide-mullite bricks and magnesia-alumina spinel bricks.
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