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1. 发明申请

US20160158767A1 CHALCOPYRITE ORE BENEFICIATION PROCESS AND METHOD 有权
标题翻译：氯氰菊酯获益方法及方法
公开(公告)号：US20160158767A1
公开(公告)日：2016-06-09
申请号：US14907578
申请日：2013-11-26
申请人： NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Limei Bai , Yuexin Han , Zhitao Yuan , Yuxin Ma , Guozhen Liu , Meng Li , Libing Zhao , Fusheng Niu , Jinxia Zhang
IPC分类号： B03D1/02 , B02C23/14
CPC分类号： B03D1/02 , B02C23/14 , B03D2203/02
摘要： The present invention relates to a mineral processing technology and method for refractory chalcopyrite ores, particularly to a mineral processing technology and method for the separation of chalcopyrite from multiple natural types of copper ores containing chalcopyrite, pyrrhotite, talc and serpentine, which belongs to the technical field of mineral processing. It's characterized by: conducting a two-stage grinding on the chalcopyrite ore, with each grinding stage followed by size grading, and treating ores in different size fractions separately, wherein coarse-grain ores are separated in the presence of xanthate, with calcium oxide and CMC controlling the pH and acting as depressor respectively, while fine-grained ores are subjected to rougher in the presence of kerosene, and subsequently subjected to cleaner in the presence of xanthate.
摘要翻译：本发明涉及耐火黄铜矿矿石的矿物加工技术和方法，特别涉及一种矿物加工技术和方法，用于从含有黄铜矿，磁黄铁矿，滑石和蛇纹石的多种天然类型的铜矿中分离黄铜矿，属于技术性矿物加工领域。其特征是：在黄铜矿矿石上进行两阶段研磨，每个研磨阶段随后进行尺寸分级，并分别处理不同尺寸级分的矿石，其中粗颗粒矿物在黄原酸盐存在下与氧化钙分离， CMC控制pH并分别作为抑制剂，而细粒矿石在煤油存在下更粗糙，随后在黄原酸盐存在下进行清洁。

2. 发明授权

US11542474B2 Recombinant adipose-derived stem cell and recombinant method thereof 有权
公开(公告)号：US11542474B2
公开(公告)日：2023-01-03
申请号：US16668065
申请日：2019-10-30
申请人： North China University of Science and Technology
发明人： Zhenyu Yan , Linhong Wang , Yanyan Xie , Xin Wang
IPC分类号： C12N5/0775 , C12N15/86 , C12N15/87
摘要： The present invention provides a recombinant adipose-derived stem cell and a recombinant method thereof, and belongs to the technical field of genetic engineering, where an adenovirus carrying an hFIX gene is transfected into an adipose-derived stem cell to obtain the recombinant adipose-derived stem cell. In the present invention, an adenovirus carrying an hFIX gene is transfected into an adipose-derived stem cell, and the recombinant adipose-derived stem cell obtained after the transfection can express an hFIX protein.

3. 发明授权

US10416169B2 Protein assay method 有权
公开(公告)号：US10416169B2
公开(公告)日：2019-09-17
申请号：US15691704
申请日：2017-08-30
申请人： North China University of Science and Technology
发明人： Hongxia Li , Yuhan Luo , Fuyuan Cao , Huiyi Zhang , Jinshan Hu , Junjie Zhang
IPC分类号： G01N33/68
摘要： A protein assay method, including: 1) dissolving 4-hydroxybenzenesulfonic acid in an ethanol, methanol, or acetonitrile aqueous solution to prepare a hydrolysis reagent, adding a protein sample and the hydrolysis reagent to a hydrolysis tube, and uniformly mixing the protein sample and the hydrolysis reagent, charging argon or nitrogen into the hydrolysis tube to remove dissolved oxygen, sealing and drying the hydrolysis tube, and hydrolyzing the protein sample; 2) cooling the hydrolysis tube to room temperature, filtering and adding a resulting hydrolysate to a volumetric flask, washing the hydrolysis tube and a filter paper, collecting and adding a resulting washing solution to the volumetric flask to a constant volume; 3) drawing a hydrolysate solution from the volumetric flask, completely drying the hydrolysate solution to yield a solid product; and 4) diluting the solid product using a diluent, and analyzing amino acids of the solid product.

4. 发明授权

US09475067B2 Chalcopyrite ore beneficiation process and method 有权
标题翻译：黄铜矿选矿工艺及方法
公开(公告)号：US09475067B2
公开(公告)日：2016-10-25
申请号：US14907578
申请日：2013-11-26
申请人： North China University of Science and Technology
发明人： Limei Bai , Yuexin Han , Zhitao Yuan , Yuxin Ma , Guozhen Liu , Meng Li , Libing Zhao , Fusheng Niu , Jinxia Zhang
IPC分类号： B02C23/14 , B03D1/02
CPC分类号： B03D1/02 , B02C23/14 , B03D2203/02
摘要： The present invention relates to a mineral processing technology and method for refractory chalcopyrite ores, particularly to a mineral processing technology and method for the separation of chalcopyrite from multiple natural types of copper ores containing chalcopyrite, pyrrhotite, talc and serpentine, which belongs to the technical field of mineral processing. It's characterized by: conducting a two-stage grinding on the chalcopyrite ore, with each grinding stage followed by size grading, and treating ores in different size fractions separately, wherein coarse-grain ores are separated in the presence of xanthate, with calcium oxide and CMC controlling the pH and acting as depressor respectively, while fine-grained ores are subjected to rougher in the presence of kerosene, and subsequently subjected to cleaner in the presence of xanthate.
摘要翻译：本发明涉及耐火黄铜矿矿石的矿物加工技术和方法，特别涉及一种矿物加工技术和方法，用于从含有黄铜矿，磁黄铁矿，滑石和蛇纹石的多种天然类型的铜矿中分离黄铜矿，属于技术性矿物加工领域。其特征是：在黄铜矿矿石上进行两阶段研磨，每个研磨阶段随后进行尺寸分级，并分别处理不同尺寸级分的矿石，其中粗颗粒矿物在黄原酸盐存在下与氧化钙分离， CMC控制pH并分别作为抑制剂，而细粒矿石在煤油存在下更粗糙，随后在黄原酸盐存在下进行清洁。

5. 发明申请

US20230115623A1 HIGH NITROGEN STEEL WITH HIGH STRENGTH, LOW YIELD RATIO AND HIGH CORROSION RESISTANCE FOR OCEAN ENGINEERING AND PREPARATION METHOD THEREFOR 有权
公开(公告)号：US20230115623A1
公开(公告)日：2023-04-13
申请号：US17966900
申请日：2022-10-17
申请人： North China University of Science and Technology
发明人： Jimeng Liu , Shuhuan Wang , Dingguo Zhao , Yuekai Xue , Hao Li , Cunshuai Zhang
IPC分类号： C22C38/00 , C22C38/02 , C22C38/22 , C22C38/28 , C22C38/04 , C21D8/02 , B21J1/06 , C22C33/04
摘要： The present invention discloses a high nitrogen steel with high strength, low yield ratio and high corrosion resistance for ocean engineering, comprising the following chemical components by weight percentage: C≤0.01%, Si≤0.1%, Cr 17%-19%, Mn 14%-16%, Mo 1%-1.5%, Ti≤0.05%, N 0.45%-0.6%, P≤0.01%, S≤0.01%, O≤0.02%, and the balance of iron. The present invention also discloses a preparation method as follows: (1) raw material weighing; (2) ingot preparation, remelting and smelting; (3) solution and forging treatments; and (4) hot rolling and post-rolling treatment. A product provided by the present invention has high tensile strength, low yield ratio and high corrosion resistance. At the same time, the present invention does not need pressurized equipment in the preparation process, therefore the preparation method is simple, the cost is low, and the present invention is suitable for industrial popularization in China.

6. 发明授权

US11142911B2 Connection structure, concrete-encased concrete-filled steel tube column and construction method 有权
公开(公告)号：US11142911B2
公开(公告)日：2021-10-12
申请号：US16901250
申请日：2020-06-15
申请人： North China University of Science and Technology
发明人： Jianwei Chen , Zhanwen Wang , Xiaoqing Song , Tao Yang , Jiushun Yao
IPC分类号： E04C3/34 , E04B1/58
摘要： The present invention discloses a concrete-encased concrete-filled steel tube (CFST) column connection structure, a concrete-encased CFST column comprising such a connection structure, and a construction method for constructing such a concrete-encased CFST column, in the technical field of connection of concrete-encased CFST columns. Exposed steel tubes at the connection ends of two split concrete-encased CFST columns are connected through a core positioning sleeve of a concrete-encased CFST column connection structure. Exposed longitudinal bars of the two split concrete-encased CFST columns are connected through longitudinal bar sleeves of the concrete-encased CFST column connection structure. A space between the two split concrete-encased CFST columns is sealed by an external sealing sleeve of the concrete-encased CFST column connection structure; and the space in the external sealing sleeve and around the first and second exposed steel tubes is filled with a concrete slurry.

7. 发明申请

US20200370019A1 RECOMBINANT ADIPOSE-DERIVED STEM CELL EXPRESSING BDDHFVIII GENE, AND PREPARATION METHOD AND APPLICATION THEREOF 审中-公开
公开(公告)号：US20200370019A1
公开(公告)日：2020-11-26
申请号：US16686910
申请日：2019-11-18
申请人： North China University of Science and Technology
发明人： Zhenyu YAN , Yanyan XIE , Linhong WANG , Yiwen ZHU
IPC分类号： C12N5/0775 , C12N15/86 , G01N1/40 , A61K35/28 , C07K14/755
摘要： The present invention provides a recombinant adipose-derived stem cell expressing a BDDhFVIII gene, and a preparation method and application thereof, and belongs to the technical field of genetically engineered drugs. The recombinant adipose-derived stem cell is obtained by infecting an adipose-derived stem cell with an adenoviral vector expressing the BDDhFVIII gene. The preparation method includes the following steps: constructing an adenoviral vector expressing a BDDhFVIII gene; extracting an adipose-derived stem cell; and infecting the adipose-derived cell with the adenoviral vector expressing the BDDhFVIII gene to obtain the recombinant adipose-derived stem cell. The recombinant adipose-derived stem cell can express the blood coagulation factor VIII safely and persistently, and have a high application prospect for treating the hemophilia A.

8. 发明申请

US20170050143A1 METHOD FOR REMOVING DUST FROM FLUE GAS USING EMULSION LIQUID MEMBRANE 审中-公开
标题翻译：使用乳液液膜从气体气体中除去尘埃的方法
公开(公告)号：US20170050143A1
公开(公告)日：2017-02-23
申请号：US15344606
申请日：2016-11-07
申请人： NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
发明人： Hongxia LI , Junjie ZHANG , Guojiang LI , Qiangsan LV , Hong YAN , Xiang ZHAO
IPC分类号： B01D53/22 , B01D21/24 , B01D47/02 , B01D17/06 , B01D47/06 , B01D67/00
CPC分类号： B01D53/228 , B01D17/06 , B01D21/245 , B01D47/02 , B01D47/06 , B01D61/40 , B01D67/0002 , B01D2247/04 , B01D2247/10 , B01D2247/14
摘要： A method for removing dust from flue gas using an emulsion liquid membrane, including: a) dissolving a surfactant into a membrane solvent to yield a membrane-forming liquid; stirring and injecting an internal phase liquid into the membrane-forming liquid to yield an emulsion; b) stirring and adding the emulsion to an external phase liquid to disperse the emulsion into the external phase liquid to yield an emulsion liquid membrane; c) allowing the emulsion liquid membrane to contact with a flue gas for removing dust; d) separating a dust-loaded emulsion, and demulsifying the dust-loaded emulsion under an electrostatic field to release the dust from the membrane-forming liquid; recycling the membrane-forming liquid to a); and e) allowing the dust released from the demulsification to precipitate in the form of a slurry and discharging the slurry.
摘要翻译：一种使用乳液液膜从烟道气中去除灰尘的方法，包括：a）将表面活性剂溶解在膜溶剂中以产生成膜液体; 搅拌并将内相液注射到成膜液体中以产生乳液; b）将乳液搅拌并加入到外相液体中以将乳液分散到外相液体中以产生乳液液膜; c）允许乳液液膜与烟道气接触以去除灰尘; d）分离灰尘负载的乳液，并在静电场下对含灰尘的乳液进行破乳以从成膜液体中释放灰尘; 将成膜液循环至a）; 和e）允许从破乳中释放的粉尘以浆料的形式沉淀并排出浆料。

9. 发明申请

US20180067123A1 PROTEIN ASSAY METHOD 有权
公开(公告)号：US20180067123A1
公开(公告)日：2018-03-08
申请号：US15691704
申请日：2017-08-30
申请人： North China University of Science and Technology
发明人： Hongxia LI , Yuhan LUO , Fuyuan CAO , Huiyi ZHANG , Jinshan HU , Junjie ZHANG
IPC分类号： G01N33/68
CPC分类号： G01N33/6806 , G01N33/6827
摘要： A protein assay method, including: 1) dissolving 4-hydroxybenzenesulfonic acid in an ethanol, methanol, or acetonitrile aqueous solution to prepare a hydrolysis reagent, adding a protein sample and the hydrolysis reagent to a hydrolysis tube, and uniformly mixing the protein sample and the hydrolysis reagent, charging argon or nitrogen into the hydrolysis tube to remove dissolved oxygen, sealing and drying the hydrolysis tube, and hydrolyzing the protein sample; 2) cooling the hydrolysis tube to room temperature, filtering and adding a resulting hydrolysate to a volumetric flask, washing the hydrolysis tube and a filter paper, collecting and adding a resulting washing solution to the volumetric flask to a constant volume; 3) drawing a hydrolysate solution from the volumetric flask, completely drying the hydrolysate solution to yield a solid product; and 4) diluting the solid product using a diluent, and analyzing amino acids of the solid product.

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