Patents Assigned to UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Patent number: 11780116Abstract: Methods for modifying a recycled fine powder of concrete and uses thereof. A method for modifying a recycled fine powder can include: crushing a collected waste concrete block with a crusher, grinding with a ball mill, and passing through a 100-mesh sieve, to obtain a recycled fine powder with d50 of 13.5 ?m; placing the obtained recycled fine powder in a dry environment at a high temperature, drying, then taking out, and cooling to room temperature; preparing tannic acid solutions with different concentrations, mixing the cooled recycled fine powder with the prepared tannic acid solutions, and continuously stirring by a glass rod.Type: GrantFiled: July 1, 2021Date of Patent: October 10, 2023Assignee: Anhui University of Science and TechnologyInventors: Liang Wang, Zhiqiang Liu, Hao Wang, Wenfeng Shen, Ying Xu, Yubiao Wei, Fan Yang
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Patent number: 11781885Abstract: An energy-efficient capacitance-to-digital converter (CDC) is provided that utilizes a capacitance-domain successive approximation (SAR) technique. Unlike SAR analog-to-digital converters (ADCs), analysis shows that for SAR CDCs, the comparator offset voltage will result in signal-dependent and parasitic-dependent conversion errors, which necessitates an op-amp-based implementation. The inverter-based SAR CDC contemplated herein provides robust, energy-efficient, and fast operation. The inverter-based SAR CDC may include a hybrid coarse-fine programmable capacitor array. The design of example embodiments is insensitive to analog references, and thus achieves very low temperature sensitivity without the need for calibration. Moreover, this design achieves improved energy efficiency.Type: GrantFiled: August 11, 2020Date of Patent: October 10, 2023Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Hesham Omran, Abdulaziz Alhoshany, Khaled Salama
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Patent number: 11780734Abstract: A process for preparing a highly pure silicon by reduction of a calcium silicate slag using a source of aluminum is disclosed. The process involves forming a molten calcium silicate slag, reducing the calcium silicate slag to Si metal and forming a calcium aluminate slag, and separating the Si metal from the calcium aluminate slag.Type: GrantFiled: December 18, 2017Date of Patent: October 10, 2023Assignee: NORWEGIAN UNIVERSITY OF SCIENCE AND TECHNOLOGY (NTNU)Inventors: Jafar Safarian, Gabriella Tranell
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Multimodal sensing positioning model oriented to high-risk production environment and system thereof
Patent number: 11783258Abstract: The present invention relates to a multimodal sensing positioning system orientated to a high-risk production environment, the positioning system comprising: at least one positioning terminal, configured to be worn by a to-be-positioned subject and use at least one positioning technique to conduct multimodal sensing positioning so as to identify a current location information of the subject in the high-risk production environment; and a monitoring terminal, communicating with the positioning terminal so as to remotely monitor the current location of the subject. The present invention improves positioning precision while ensuring realtimeness of multimodal positioning.Type: GrantFiled: December 4, 2020Date of Patent: October 10, 2023Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Jiang Xiao, Minrui Wu, Huichuwu Li, Hai Jin -
Patent number: 11779888Abstract: A filter element comprises a membrane layer; and a feed spacer on the membrane layer, wherein the feed spacer comprises a plurality of unit cells arranged in three dimensions, wherein each of the plurality of unit cells comprises a cavity defined by a triply periodic minimal surface, and wherein the cavities of the plurality of unit cells are interconnected to allow a fluid to pass through the cavities of the plurality of unit cells.Type: GrantFiled: March 15, 2021Date of Patent: October 10, 2023Assignee: Khalifa University of Science and TechnologyInventors: Hassan Arafat, Rashid Abu Al-Rub, Nurshaun Sreedhar, Oraib Al-Ketan, Navya Thomas
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Patent number: 11780624Abstract: A device for binding rod bundles includes a tilting apparatus, a wire stripper, a binding apparatus, and a collection apparatus. The tilting apparatus includes a tilting platform, a hydraulic cylinder, and an articulated base. The wire stripper includes a main body, a first sliding mechanism, a second sliding mechanism, a first slide block, and a second slide block. The binding apparatus includes an electric clamp, a clamping frame, a sliding rail, a rail base, and a drive motor. The collection apparatus is hinged to the tilting apparatus; the wire stripper is disposed below the tilting apparatus; the tilting platform includes a hinge hole for receiving one end of the clamping frame. The collection apparatus includes a shaft hole for receiving one end of the tilting platform. The hydraulic cylinder is hinged to the articulated base and the other end of the tilting platform is hinged to the hydraulic cylinder.Type: GrantFiled: July 21, 2021Date of Patent: October 10, 2023Assignees: TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY, HIGH-END EQUIPMENT AND RAIL TRANSIT TECHNOLOGY R & D CENTER OF HARAN TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Lifeng Ma, Jingfeng Zou, Rongjun Wang, Ziyong Ma
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Patent number: 11780864Abstract: Non-d0 rhenium(V) alkylidyne catalysts useful for catalyzing alkyne metathesis reactions, such as homo- and cross-metathesis of alkynes or diynes, ring closing metathesis and ring-opening metathesis, methods or use, and preparation thereof. The catalysts are stable to air and moisture and tolerate a variety of functional groups in substrates.Type: GrantFiled: July 5, 2022Date of Patent: October 10, 2023Assignee: The Hong Kong University of Science and TechnologyInventors: Guochen Jia, Mingxu Cui
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Patent number: 11784722Abstract: A communication system includes a first communication gateway arranged proximate to a surface of a body of water and an underwater communication gateway. The underwater communication gateway is configured to receive data from a first underwater communication device using radio frequencies and the ethernet data link layer protocol, to convert the data received from the first underwater communication device from the ethernet data link layer protocol to the second data link layer protocol, and to transmit, using optical radiation and the second data link layer protocol, the data converted by the underwater communication gateway to the first communication gateway. The first communication gateway is configured to convert the data transmitted by the underwater communication gateway from the second data link layer protocol to the ethernet data link layer protocol, and to transmit, using the ethernet data link layer protocol, the data converted by the first communication device to a further communication device.Type: GrantFiled: February 22, 2021Date of Patent: October 10, 2023Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Omar Alkhazragi, Mohamed-Slim Alouini, Osama Amin, Seifallah Jardak, Boon Siew Ooi, Basem Shihada
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Publication number: 20230313859Abstract: Disclosed are a compound impact-resistant device and an application thereof. The compound impact-resistant device includes an inner cylinder, a first pressure sensor and an outer cylinder; an inner cavity of the inner cylinder is connected to a magnetorheological damper, a spiral valve element, a floating piston and a spring from bottom to top; and the outer cylinder is connected to a piston rod, a bottom end of the piston rod penetrates a top of the inner cylinder, the spring and the floating piston to be connected to the spiral valve element, and a portion below the spiral valve element is filled with hydraulic oil. The compound impact-resistant device can provide specific initial support force and achieve active self-adaptation to dynamic impact, thus solving the problems that traditional hydraulic buffers cannot provide initial support force and traditional mechanical crushing members have difficulty in providing large support force.Type: ApplicationFiled: June 15, 2021Publication date: October 5, 2023Applicant: Shandong University of Science and TechnologyInventors: Chenglong WANG, Meng CHEN
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Publication number: 20230314776Abstract: The disclosure discloses a large-aperture infrared metalens camera, which belongs to the technical field of infrared imaging and micro-nano photonics, including a large-aperture metalens, an infrared focal plane array detector, a metalens mechanical assembly and a housing. The large-aperture metalens has an aperture greater than 50 mm and a thickness less than 2 mm, and the distance between the large-aperture metalens and the infrared focal plane array detector is greater than 30 mm. The metalens mechanical assembly uses a buffer structure to fix, adjust and protect the metalens from shocks. The housing is sealed through a thermal insulation coating, thus providing heat insulation and waterproof protection for the lens.Type: ApplicationFiled: September 22, 2022Publication date: October 5, 2023Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Fei YI, Mingming HOU, Yan CHEN, Linhan LI
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Publication number: 20230314308Abstract: A system for detecting a concentration of free SiO2 in coal dust includes a first sampling tube and a second sampling tube for sampling the coal dust, a three-way control valve communicated with the first sampling tube and the second sampling tube respectively, a photoacoustic spectrometry detection device communicated with the three-way control valve through a connecting pipeline, and a SiO2 reaction tube for reacting SiO2 in the coal dust; and the SiO2 reaction tube is disposed on the second sampling tube. In the present disclosure, a coal dust sampling line is convenient to change by disposing the three-way control valve, and the first sampling tube and the second sampling tube are respectively communicated with the photoacoustic spectrometry detection device, so as to perform a differential accurate detection of the reacted CO content, and to obtain the SiO2 content.Type: ApplicationFiled: December 28, 2022Publication date: October 5, 2023Applicant: Anhui University of Science and TechnologyInventors: Huawei JIN, Fangzheng YAN, Lei FANG
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Publication number: 20230311096Abstract: The present disclosure provides an active zinc-based catalyst and a preparation method thereof, and use in catalyzing a rearrangement reaction of ibuprofen. The active zinc-based catalyst includes a carbon-based fiber material and nano-zinc oxide supported on a fiber surface of the carbon-based fiber material. The active zinc-based catalyst is introduced with the carbon-based fiber material, and the carbon-based fiber material is capable of increasing a specific surface area of the catalyst, thereby improving a dispersion degree of zinc oxide, increasing the number of catalytic active sites, and significantly improving a catalytic activity. Meanwhile, due to a certain mechanical strength, the carbon-based fiber material is capable of improving a mechanical strength of the catalyst, making the catalyst exist stably in ketal fluid, maintaining a stable morphology of the catalyst, and avoiding or inhibiting reduction of the catalytic active sites, thereby ensuring a catalytic stability.Type: ApplicationFiled: July 8, 2022Publication date: October 5, 2023Applicant: Qingdao University of Science and TechnologyInventors: Yinglong WANG, Peizhe CUI, Zhaoyou ZHU, Fanqing MENG, Xin LI, Jianguang QI, Limei ZHONG, Deping DU, Bingkun XIA, Jianbo JIA, Zuxing KOU
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Patent number: 11777146Abstract: The present disclosure belongs to the field of energy materials, and relates to a preparation method of a solid electrolyte, in particular to a method for forming a membrane by using an electrolyte to activate a porous powder material prepared by in-situ polymerization of a polymer on the surfaces of cellulose nanocrystals, and then hot-pressing. According to the technical solution of the present disclosure, cellulose nanocrystals are used as templates, the powder material with a porous structure is prepared by in-situ polymerization growth of the polymer on the surfaces of the cellulose nanocrystals, a small amount of electrolyte is used to activate the powder, and the solid electrolyte is prepared by hot-pressing membrane formation. The solid electrolyte prepared by the present disclosure has excellent electrochemical performance and mechanical performance, and a broad application prospect.Type: GrantFiled: January 4, 2023Date of Patent: October 3, 2023Assignee: Qingdao University of Science and TechnologyInventors: Yuwei Chen, Jiying Yang, Junbo Che, Quan Wang, Jinjin Hu, Jianwen Wang, Yu Li, Jianming Zhang
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Patent number: 11773683Abstract: A segmented grouting method for ramp drivage in an aquifer is provided. Concerning grouting reinforcement for a ramp in an aquifer, a grouting process is divided into four stages according to a pressure change, that is, micro-pressure filling, low-pressure diffusion, medium-pressure reinforcement, and high-pressure fracturing. In the micro-pressure filling, an initial pressure of a grouting orifice is 0, and a low-concentration single-component grout is used to fill an original fissure of the aquifer. In the low-pressure diffusion, a low-concentration bicomponent grout is used for grouting, the original fissure is expanded, and a grouting radius is increased. In the medium-pressure reinforcement, a high-concentration bicomponent grout is used for grouting, thereby reinforcing the aquifer. In the high-pressure fracturing, a high-concentration bicomponent grout is used to reinforce a new fractured fissure of the orifice caused by a high pressure and the original fissure, thereby forming a confining bed.Type: GrantFiled: March 22, 2023Date of Patent: October 3, 2023Assignees: NORIN MINING LIMITED, University of Science and Technology BeijingInventors: Chao Liu, Yunpu Qi, Zhanglun Song, Shuai Zhang, Liang Wang, Shenghua Yin, Fusong Dong, Dapeng Chen, Leiming Wang
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Patent number: 11776102Abstract: A system includes a programmable assessor and a remote computer. The programmable assessor includes an assessment chamber, which includes an assessment platform and a sensor arranged to sense characteristics of a product on the assessment platform, as well as a processor coupled to the sensor and an input coupled to the processor. The remote computer includes a remote processor. The sensor is configured to sense characteristics of first and second versions of the product. The input is configured to receive a classification of the first and second versions of the product. The programmable assessor is configured to provide the sensed characteristics and classification of the first and second versions of the product to the remote processor. The remote processor is configured to generate an assessment program based on the sensed characteristics and classification of the first and second versions of the product, and to provide the generated assessment program to the programmable assessor.Type: GrantFiled: February 24, 2020Date of Patent: October 3, 2023Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGYInventor: Mohammed Mansour Alrashed
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Patent number: 11773005Abstract: Disclosed are a coating for glass molding, a preparation method and application thereof and a mold having the coating. The coating includes a nitride layer and nano precious metal particles which are dispersed in the nitride layer. A surface roughness of the coating is 2-12 nm. The preparation method of the coating includes: cleaning a substrate and targets under an inert gas; and under a mixed atmosphere of nitrogen and the inert gas, depositing, with a high-purity W target, a high-purity Cr target and a precious metal inserted Cr target, a Cr intermediate layer, a nitride layer and nano precious metal particles on a surface of the substrate. The coating has good oxidation resistance and excellent anti-adhesion property. Moreover, the coating effectively inhibits the adhesion between the glass body and the mold.Type: GrantFiled: April 13, 2020Date of Patent: October 3, 2023Assignees: No. 59 Institute of China Ordnance Industry, Shenzhen University, University of Science and Technology LiaoingInventors: Qiang Chen, Feng Gong, Zhiwen Xie, Kangsen Li, Xinfang Huang, Zhihui Xing
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Patent number: 11774336Abstract: A friction and wear testing platform capable of simulating high-pressure, silt-containing and turbid submarine environment, including a tank, a loading device, a partition plate, a partition cylinder, a top sealing sleeve, a bottom sealing sleeve, a rotating shaft, an inner magnetic cylinder, an outer magnetic cylinder and a centering table. The partition plate and the partition cylinder divide an inner chamber of the tank into a test chamber and a pressure compensation chamber. The rotating shaft penetrates the pressure compensation chamber; two ends of the rotating shaft are sealed by the top and bottom sealing sleeves, respectively, as well as sealing bearings and rings therein. The loading device drives the rotating shaft to rotate, and the rotating shaft drives the inner magnetic cylinder to rotate. The centering table is driven through the magnetic coupling between the inner and outer magnetic cylinders to install a test piece.Type: GrantFiled: April 12, 2022Date of Patent: October 3, 2023Assignee: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Yongping Jin, Zhaodong Tong, Buyan Wan
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Patent number: 11773025Abstract: Provided is a red mud-based composite calcium ferrite and a preparation method and use thereof. The preparation method of the red mud-based composite calcium ferrite includes the following steps: mixing red mud and a calcium source, and roasting an obtained mixture in an oxygen-containing atmosphere to obtain the red mud-based composite calcium ferrite; where the calcium source is selected from the group consisting of lime and calcium carbonate. In the present disclosure, the composite calcium ferrite is prepared using a solid waste red mud, with a greatly reduced cost of raw materials; on the other hand, compared with traditional calcium ferrite, the composite calcium ferrite mainly has phase structures of CaFe2O4, Ca2FeAlO5, and Ca2Fe2O5. Therefore, the composite calcium ferrite has a lower melting point, a higher lime dissolution efficiency, and better fluxing and dephosphorization effects during primary smelting and refining of molten steel, and has broad prospects for use in industry.Type: GrantFiled: October 13, 2022Date of Patent: October 3, 2023Assignee: University of Science and Technology BeijingInventors: Yanling Zhang, Zheng Zhao, Weifeng Zhang, Kan Yu, Yao Zhang
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Publication number: 20230303402Abstract: The present disclosure provides a preparation method of nano-aluminum oxide (nano-Al2O3) with a controllable hydroxyl content, belonging to the technical field of nano-alumina. H2O2 dissolved in water dissociates a large number of hydroxyl radicals. In the present disclosure, a resulting H2O2 solution is used as a solvent for precipitation; during the precipitation, a soluble aluminum salt and a pore-enlarging agent are reacted to generate a precipitate under alkaline conditions, and the hydroxyl radicals are distributed on a surface of the precipitate. During drying, the hydroxyl radicals are converted into bound water and distributed on a surface and in pores of an aluminum hydroxide precursor; during roasting, the bound water is destroyed to form hydroxyl. The hydroxyl content of the nano-Al2O3 can be regulated by controlling a concentration of the H2O2 solution, and the nano-Al2O3 has the hydroxyl content positively correlated with the concentration of the H2O2 solution.Type: ApplicationFiled: March 22, 2023Publication date: September 28, 2023Applicant: Kunming University of Science and TechnologyInventors: Fei Wang, Kai Li, Ping Ning, Zhao Li, Xin Sun, Yixing Ma, Chi Wang
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Publication number: 20230304361Abstract: 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.Type: ApplicationFiled: March 22, 2022Publication date: September 28, 2023Applicants: University of Science and Technology Beijing, Shunde Graduate School, University of Science and Technology BeijingInventors: Haiping LIU, Qi LV, Dashan SHEN, Donghang HAN, Dongmei ZHU