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41.发明授权公开(公告)号：US11142481B2
公开(公告)日：2021-10-12
申请号：US16814262
申请日：2020-03-10
发明人： Yali Wang , Jianfeng Wang , Yunfang Lv , Zhenguo Wang , Yuanzhong Han , Shichao Zhang
IPC分类号： C04B24/00 , C04B7/147 , C07C213/06
摘要： An additive for increasing an early activity index of nickel slag and a preparation method thereof, belonging to the field of additive technologies, are provided. The preparation method includes: successively adding maleic anhydride and triethanolamine to a reactor; setting the heating temperature to 50° C. for reaction, where a large amount of heat is released during the reaction; when the reaction temperature decreases to 60° C. after heat is released in the reaction, allowing triethanolamine maleate to react with a solution of bromine in carbon tetrachloride; adding water to the mixture, where the weight percentage content of the added water is 60%; separating and removing carbon tetrachloride from water; and conducting uniform stirring to obtain the additive. A molar ratio of the maleic anhydride, the triethanolamine, and bromine is (0.2-1):1:(0.2-1), and a molar ratio of the maleic anhydride to the bromine is 1:1.
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公开(公告)号：US20210309533A1
公开(公告)日：2021-10-07
申请号：US17351083
申请日：2021-06-17
发明人： Yufeng WU , Gongqi LIU , De-an PAN
摘要： A method for purifying sodium bromide by the waste circuit board pyrolysis coke, belonging to the field of purifying sodium bromide and high-value utilization, and more particularly, relating to a method for reducing and purifying crude bromine salt enriched from waste circuit board smelting ash by using waste circuit boards pyrolysis coke. The main steps are as follows: carbonization conversion, purification filtration and vacuum exsolution. The pure sodium bromide crystal was obtained by reducing crude bromine salt enriched from waste circuit board smelting ash by using coke in waste circuit board pyrolysis residues, realizing the resource coupling and high-value utilization of the two wastes, avoiding the secondary pollution in the process of recycling the waste circuit boards. It has the characteristics of simple operation, high resource utilization rate and no tail liquid discharge.
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公开(公告)号：US11106939B2
公开(公告)日：2021-08-31
申请号：US16709947
申请日：2019-12-11
发明人： Yanfeng Sun , Fujiao Ju
摘要： A processing method for high-order tensor data, which can avoid that the vectorization process of the image observation sample set damage the internal structure of the data, simplify the large amount of redundant information in the high-order tensor data in the image observation sample set, and improve the image processing speed. In this processing method for high-order tensor data, the high-order tensor data are divided into three parts: the shared subspace component, the personality subspace component and the noise part; the shared subspace component and the personality subspace component respectively represent the high-order tensor data as a group of linear combination of the tensor base and the vector coefficient; the variational EM method is used to solve the base tensor and the vector coefficient; design a classifier to classify the test samples by comparing the edge distribution of samples.
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公开(公告)号：US20210238075A1
公开(公告)日：2021-08-05
申请号：US17041374
申请日：2020-04-02
发明人： Yongzhen Peng , Jinjinie Liu , Shengjie Qiu , Yang Xia , Qiong Zhang
IPC分类号： C02F9/00
摘要： A method for realizing heterotrophic and autotrophic coupling advanced nitrogen removal and simultaneous sludge reduction in an anaerobic-aerobic-anoxic sequencing batch reactor (AOA-SBR) is disclosed. Municipal sewage and sludge fermentation mixture is allowed to simultaneously enter into the AOA-SBR; in the anaerobic stage, the organic matter in the sewage and sludge fermentation mixture is converted into polyhydroxyalkanoates (PHA) and stored in the body; in the aerobic stage, the dissolved oxygen (DO) at 0.5˜1 mg/L is maintained by a real-time control, the aeration time is set for 1˜3 h, and when the mass concentration ratio of NO2−—N to NH4+—N is in a range from 1.5 to 2.0, the aeration is stopped, that is, ammonia-nitrogen is partially converted into nitrite-nitrogen through short-cut nitrification; in the anoxic stage, the remaining ammonia-nitrogen and nitrite-nitrogen undergo anaerobic ammonia oxidation (anammox), and meanwhile the remaining nitrite-nitrogen and nitrate-nitrogen generated by anammox is reduced by denitrifying bacteria to nitrogen to achieve advanced nitrogen removal. A related apparatus is also provided, which simultaneously realizes advanced nitrogen removal of sewage and reduction of sludge.
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45.发明申请公开(公告)号：US20210118530A1
公开(公告)日：2021-04-22
申请号：US16980370
申请日：2019-10-16
发明人： Xiaoyan SONG , Hao LU , Yanan LI , Fawei TANG
摘要： A computer simulation analysis method suitable for describing the mechanical behavior of multiphase composites based on the real microstructure of materials relates to a multidisciplinary field such as computational material science, simulation and high throughput calculation. Through the first-principles calculation under nano scale, the molecular dynamics simulation under micro scale, and the thermodynamic calculation under mesoscopic scale, various physical parameters needed for the finite element simulation under macro scale can be obtained, including the elastic and plastic physical parameters of each phase in the composite at different temperature and different grain sizes. Focused ion beam experiment and image processing are adopted to obtain real material microstructure. Through the parameter coupling and parameter transfer among the calculated results of various scales, combining the microstructure of the material, stress-strain relationship, stress distribution and its evolution law, plastic deformation and other mechanical behaviors of the multiphase composites under complex stress and different temperature can be simulated.
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公开(公告)号：US20200223970A1
公开(公告)日：2020-07-16
申请号：US16571017
申请日：2019-09-13
发明人： XIAO LIU , QIAN XU , ZIMING WANG , GUANGHONG LAI , JIANAN GUAN , SHANSHAN QIAN , XIABING BAI
IPC分类号： C08F265/04 , C04B24/26 , C08F8/12 , C08F2/06 , C08F2/40
摘要： A preparation method of comb structure temperature/pH-responsive polycarboxylic acid adopts acrylic ester, temperature/pH-responsive monomer and other raw materials to obtain polycarboxylic acid via acrylate monomer self-polymerization, grafting with temperature/pH-responsive monomers and hydrolyzation. In other words, acrylate is used as the reaction monomer to polymerize polyacrylate with controllable molecular weight under the action of initiator and chain transfer agent, then the graft copolymers are copolymerized with temperature/pH-responsive monomers to obtain graft copolymers with acrylate polymers main chain and temperature/pH-responsive polymer side chains. Finally, the graft copolymer is hydrolyzed to obtain the comb structure temperature/pH-responsive polycarboxylic acid with polyacrylic acid main chain and temperature/pH-responsive monomer side chain.
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公开(公告)号：US20200087915A1
公开(公告)日：2020-03-19
申请号：US15747703
申请日：2017-05-09
发明人： Xiuli Du , Zigang Xu , Chengshun Xu
摘要： An n-shape connected split column for underground structure comprises a prefabricated reinforced concrete column, n-shape connector, exterior packaged steel sheet, reserved connecting reinforcement and reserved high strength bolt. The subject of the prefabricated reinforced concrete column is an ordinary reinforced concrete column; the reserved connecting reinforcement is reserved on the top and bottom of the prefabricated reinforced concrete column; a high strength bolt is reserved on adjacent side faces. The n-shape connector connects with prefabricated reinforced concrete column through reserved high strength bolt; they are installed in underground structure through reserved connecting reinforcement. The exterior packaged steel sheet is pasted on the exterior of the prefabricated reinforced concrete column, and coadjacent prefabricated reinforced concrete column and connection gap between them is overall packaged to ensure the performance of split column under normal service condition. The present disclosure has clear concept and principle; it is easy to be manufactured, repaired, and installed in a key position of underground structure to decrease the damage of earthquake for an underground structure.
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公开(公告)号：US20200071209A1
公开(公告)日：2020-03-05
申请号：US16551297
申请日：2019-08-26
发明人： HONG-GUI HAN , YING-XU WANG , SHU-JUN WU , MIN GUO
摘要： To solve problems of frequent occurrence and great harm of membrane fouling during MBR wastewater treatment process, the invention proposes a membrane fouling intelligent early warning method to realize online and accurate early warning of membrane fouling. This early warning method achieves accurate prediction of water permeability by constructing soft-computing model based on recurrent fuzzy neural network. The intelligent early warning of membrane fouling is achieved by the comprehensive evaluation method, which solves the problem that membrane fouling is difficult to be early warning in the MBR wastewater treatment process, improves the pretreatment ability of membrane fouling, reduces the damage caused by membrane fouling, ensures the safe operation of MBR wastewater treatment process, and promotes efficient and stable operation of MBR wastewater treatment plant.
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公开(公告)号：US10452929B2
公开(公告)日：2019-10-22
申请号：US15520592
申请日：2015-10-15
发明人： Jiangbi Hu , Wenqian Ma , Shilong Mei , Xiaoshun Lu , Jianping Cao , Weili Wang , Yuanfeng Zhang , Xiaoqin Zhang , Da Guo , Meng Wang , Xiaoyu Li , Linxi Gao , Xiaojuan Gao , Feng Liu
摘要： The invention relates to an illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition. The method includes: (a) setting light environment parameters of the tunnel entrance section; (b) determining a feature position in the tunnel, and measuring the average road surface brightness L of the feature position; (c) placing a target object in the feature position and then making a driver drive at different speeds from outside the tunnel towards the target object to measure visual recognition distances D required by the driver to visually discover the target object under different driving speeds, and measuring the road surface brightness L20 at the position where the driver visually discovers the target object and calculating the brightness reduction factor K to be the ratio between L and L20; (d) resetting the average road surface brightness L of the tunnel entrance section and repeating steps (b) and (c) to obtain a plurality of different sets of visual recognition distances D and corresponding brightness reduction factors K; (e) using Sigmoid function model to calculate and fit the data of the plurality of sets of D and K to obtain a relational model formula of D and K: D = 215 1 + e ( - 708 + 56 ) + 27.6 ; (f) substituting a safe stopping sight distance D0 corresponding to a maximum speed limit of the tunnel into the formula to obtain the minimum brightness reduction factor K0 of the tunnel entrance section in daytime. The invention also relates to a system for implementing the illumination standard calculation method for a tunnel entrance section in daytime based on safe visual recognition.
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50.发明申请公开(公告)号：US20190299523A1
公开(公告)日：2019-10-03
申请号：US16446314
申请日：2019-06-19
发明人： Lifang Wu , Miao Yu , Yisong Gao , Lidong Zhao , Yuan Gao , Xiaohua Guo , Meng Jian , Changling Wang , Ziming Zhang , Yuanzheng Shi
IPC分类号： B29C64/245 , B29C64/118 , B29C64/209 , B29C64/227 , B29C64/379
摘要： A multi-degree-of-freedom (Multi-DOF) 3D printing device includes a printer mechanism, a rotatable platform, a visual inspection system, and a control system. The printing mechanism includes a print head. The printing mechanism and the rotatable platform are combined to have three degrees of freedom of translation, and the rotatable platform has two degrees of freedom of rotation. The visual inspection system includes a camera mounted to nearby the print head and the relative position of camera and print head remains constant. The control system is configured to implement the printing process. The model is decomposed into several components, each of which could be printed in a single direction. After one component is printed out, the platform is then rotated so that the cutting plane for the component will be printed is horizontal.
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