Patents by Inventor Yanjun Zhang
Yanjun Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20250068303Abstract: Embodiments of the present disclosure provide an information feedback method and apparatus, a computer device and a storage medium. The method includes in response to enabling an information feedback function in a scene of reading a target book, receiving user voice data, and determining an operation intention towards the target book based on a semantic analysis result of the user voice data, wherein the operation intention includes at least one selected from a group consisting of a questioning intention and a control intention; and determining target information for feedback based on book information of the target book and determined operation intention.Type: ApplicationFiled: August 2, 2024Publication date: February 27, 2025Inventor: Yanjun ZHANG
-
Publication number: 20250027769Abstract: An inversion method of river course depth based on a mathematical model and remote sensing of water depth-water surface area includes the following steps: constructing the first mathematical model; calculating the relation function between the water flowing cross-section area, the triangle area at two sides and the water depth as well as the flow path, and substituting the relation functions into the first mathematical model to obtain the second mathematical model; transforming the second mathematical model into the mathematical model of water level-water surface area; solving the unknowns in the mathematical model, and substituting the unknowns into the second mathematical model to obtain the third mathematical model; and substituting the water surface area extracted by the remote sensing into the third mathematical model to obtain the water depth of the river course.Type: ApplicationFiled: May 30, 2024Publication date: January 23, 2025Applicants: WUHAN UNIVERSITY, CHINA YANGTZE POWER CO., LTD.Inventors: Yanjun ZHANG, Xuetao ZENG, Xinbo LIU, Zhengfeng BAO, Hui CAO, Yifan WANG, Yufeng REN, Jiahui YANG
-
Publication number: 20250011348Abstract: The present application relates to a new method for synthesizing isophosphoramide nitrogen mustard (X-IPM) that is suitable for industrialized production, involves fewer types of solvents, and leads to stable products with high yield. This method is charazterized mainly by the batchwise addition of M (e.g., M is R3N with R being ethyl; i.e., M is triethylamine) and the specific post-reaction treatment, which make it possible for the reaction to fully proceed, lead to products with less impurities, high yield and relatively stable properties, and can lead to stable crystallized substances with specific crystal structures. The present application also relates to stable crystal forms of the isophosphoramide nitrogen mustard (X-IPM) prepared by the aforementioned method, and use of the same as reactants for the synthesis of aziridine structure-containing compounds.Type: ApplicationFiled: June 13, 2023Publication date: January 9, 2025Inventors: Jianxin Duan, Zhaoqiang Lu, Xiaohong Cai, Jinwei Fan, Wei Qin, Qunhui Huang, Yanjun Zhang, Weisu Chen
-
Publication number: 20240425461Abstract: This invention relates to a process for preparing an intermediate of aminoimidazole carboxylate, a process for synthesizing aminoimidazole carboxylate and an HPLC method for determining purity. The process of preparing the intermediate of aminoimidazole carboxylate comprises subjecting a compound of formula I-2 and a formate as the reactants to a first-step reaction in a benzene solvent and at a temperature of ?5° C.?5° C., with the addition of a solution of sodium alkoxide in such a way that the temperature of the reaction solution is not higher than 5° C., to obtain the intermediate of aminoimidazole carboxylate or a mixture comprising a compound of formula I-3, i.e., the intermediate of aminoimidazole carboxylate.Type: ApplicationFiled: June 13, 2023Publication date: December 26, 2024Inventors: Jianxin Duan, Zhaoqiang Lu, Jinwei Fan, Qunhui Huang, Yanjun Zhang, Weisu Chen, Wei Qin
-
Publication number: 20240425462Abstract: The present invention provides a preparation process of 1-N-methyl-2-nitro-5-hydroxymethylimidazole comprising using N,N?-carbonyldiimidazole and 1-N-methyl-2-aminoimidazole-5-carboxylic acid to react at 45˜65° C. for a period of time, and then cooling to 15˜25° C. for a period of time until the reaction is complete, and then reacting with a reducing agent to finally obtain 1-N-methyl-2-nitro-5-hydroxymethylimidazole. The present invention uses the relatively safe N,N?-carbonyldiimidazole to replace the highly toxic, strong irritating, strong corrosive, and environmentally demanding isobutyl chloroformate. It has the following advantages: CDI is a solid, non-irritating and non-corrosive, favorable for storage, transportation and environmental protection, low requirements on equipment, and less physical harm to operators; the reaction operation is simple and the post-treatment is simple.Type: ApplicationFiled: June 13, 2023Publication date: December 26, 2024Inventors: Zhaoqiang Lu, Jinwei Fan, Qunhui Huang, Yanjun Zhang, Weisu Chen
-
Patent number: 12072321Abstract: A chromatographic apparatus for online enrichment of trace and ultra-trace components and an analytical method using the same. The apparatus includes an injection system, a vaporizing chamber, an enrichment system, a thermal box, a sample collection system, a focusing trap, a chromatographic analytical column system, a detector and an electronic control system. The method includes steps of sample enrichment, thermal desorption and back flushing, which are performed through a combination of a four-way valve and an electronic switch valve box.Type: GrantFiled: July 2, 2021Date of Patent: August 27, 2024Assignee: Asicotech Company LimitedInventors: Zhirong Gao, Yanjun Zhang
-
Patent number: 12037759Abstract: An integrated anchoring structure of basalt fiber reinforced plastic (BFRP) bars for a reservoir bank slope includes: a plurality of BFRP anchoring bars, where each of the BFRP anchoring bars includes a plurality of BFRP bars bonded to one another, a lower steel casing pipe, an upper steel casing pipe and a steel strand bonded to an upper portion of the upper steel casing pipe and aligned with the BFRP bars, and a grating array temperature sensing optical cable, a grating array stress sensing optical cable and a grating array vibration sensing optical cable are bonded in each of the BFRP bars; a plurality of shear-resistant bricks distributed on structural planes; a pouring base arranged at a bottom of the anchoring borehole; and an anchoring section arranged at an upper portion of the pouring base.Type: GrantFiled: November 8, 2021Date of Patent: July 16, 2024Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)Inventors: Zhenwei Dai, Shengtao Zhou, Yanjun Zhang, Xiaolin Fu, Runqing Ye, Jinjun Guo, Zhigang Du
-
Patent number: 12022856Abstract: The invention provides a slow-release fragrance and an application thereof in a tobacco product with Chinese-style flavor. The slow-release fragrance of the invention includes the following constituents in percentage by mass: 5% to 50% of a tobacco extract and 50% to 95% of a tangerine peel extract.Type: GrantFiled: July 12, 2019Date of Patent: July 2, 2024Assignee: CHINA TOBACCO GUANGDONG INDUSTRIAL CO., LTD.Inventors: Feng Li, Xi Liu, Yanjun Zhang, Jian Zeng, Jinming Wu, Jing Hu, Yibo Liu, Yuming Li
-
Patent number: 11980232Abstract: A cigarette heating device includes a cigarette holder, a heating cavity and a base which are connected in sequence. A top end of the heating cavity is communicated with the cigarette holder, the heating cavity is connected with a power supply device, and the power supply device is disposed at the base. The heating cavity includes a shell and a heating assembly for heating and baking a cigarette, the heating assembly is electrically connected with the power supply device, the shell surrounds an outer side of the heating assembly, and two ends of the shell are connected with the cigarette holder and the base, respectively. An air passage is disposed at a bottom end of the shell, and the heating cavity is communicated with an external environment through the air passage for air to enter and exit the heating cavity.Type: GrantFiled: July 12, 2019Date of Patent: May 14, 2024Assignee: CHINA TOBACCO GUANGDONG INDUSTRIAL CO., LTD.Inventors: Ruifeng Zhao, Jing Hu, Feng Li, Guizhou Wu, Yanjun Zhang, Yibo Liu, Rongfei Ye
-
Publication number: 20240151703Abstract: A surface water quality monitoring method based on a high spatial resolution satellite includes: step 1. building standard surface water quality pools by mixing natural water bodies with clean water in different proportions to obtain surface water quality data; step 2. obtaining high spatial resolution remote sensing images for processing; step 3. identifying remote sensing bands with higher correlation through correlation analysis by presetting ratio values of remote sensor data bands and the standard surface water quality pools; step 4. building a water quality parameter retrieval model, and comparing and retrieving the remote sensing bands with higher correlation and the surface water quality data to obtain water quality data; and step 5. identifying abnormal points of the water quality based on the water quality data and water quality data threshold of the surface water.Type: ApplicationFiled: January 18, 2024Publication date: May 9, 2024Applicants: WUHAN UNIVERSITY, CHINA YANGTZE POWER CO., LTD.Inventors: Yanjun ZHANG, Anni QIU, Wenxun DONG, Lan LUO, Yuanxin SONG, Zhengfeng BAO, Hui CAO, Xinbo LIU, Xuetao ZENG
-
Publication number: 20240122133Abstract: Disclosed are a low-cost high-efficiency drip irrigation system for a cotton field and a use method thereof. The drip irrigation system for a cotton field includes a filtering device and a water supply device; wherein the filtering device adopts different types of single filtering devices or combined filtering devices according to different water source types; the water supply device includes multiple stages of main pipes, submain pipes and laterals; the laterals (a drip irrigation tape with labyrinth on one side or a drip irrigation tape inlaid with emitters inside) are laid on the surface of the ground and located below a mulch film. The drip irrigation system adopts the design of large flow (1.5-3.4 L/h), slightly larger pipe diameter (>75 mm), low water pressure (operating pressure of drip irrigation tape being 0.03-0.07 MPa) and suitable drip irrigation uniformity (80%-90%).Type: ApplicationFiled: December 9, 2023Publication date: April 18, 2024Applicants: Institute of Cash Crops, Xinjiang Academy of Agricultural Sciences, Shihezi UniversityInventors: Liwen TIAN, Honghai Luo, Hezhong Dong, Na Zhang, Liantao Liu, Guangping Feng, Zhanbiao Wang, Yanjun Zhang, Xianzhe Hao, Jin Li, Zhi Chen, Nan Zhao, Changwen Liu
-
Patent number: 11959888Abstract: A device for testing overall anchorage performance of a basalt fiber reinforced plastic (BFRP) anchor cable includes an anchor cable anchoring system and a data acquisition system. The anchor cable anchoring system includes a test bed, BFRP arranged over the test bed, and a distributed optical fiber bonded to a surface of the BFRP, the test bed being provided with an anchoring section at one end and an outer anchoring section at the other end, the anchoring section anchors one end of the BFRP, and the outer anchoring section anchors the other end of the BFRP. The data acquisition system includes a modem and a grating connected to two ends of the distributed optical fiber in series, and a center hole jack and a dynamometer arranged between the outer anchoring section and an end of the test bed, and the BFRP penetrates the center hole jack and the dynamometer.Type: GrantFiled: December 5, 2021Date of Patent: April 16, 2024Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)Inventors: Zhenwei Dai, Yanjun Zhang, Xiaolin Fu, Runqing Ye, Jinjun Guo, Zhigang Du
-
Patent number: 11873535Abstract: Described herein are methods and kits for authentication of botanical DNA fragments isolated from processed botanical products, including dietary supplements or nutraceutical compositions including botanical extracts.Type: GrantFiled: July 27, 2018Date of Patent: January 16, 2024Assignee: HERBALIFE INTERNATIONAL OF AMERICA, INC.Inventors: Zhengfei Lu, Silva Babajanian, Yanjun Zhang, Peter Chang, Gary Swanson, Maria Rubinsky
-
Patent number: 11773558Abstract: A rapid construction device for a prestressed basalt fiber anchor rod, includes a sleeve drill rod and a drill bit; the sleeve drill rod includes an inner and an outer cylinders; a middle of the drill bit is connected to a lower end of the inner cylinder, an edge of the drill is connected to a lower end of the outer cylinder, a constraint hole is defined in the middle of the drill bit for allowing a basalt fiber reinforced plastic (BFRP) penetrating therethrough, a magnetic baffle is arranged at a lower end of the constraint hole to shield the constraint hole, and a plurality of through holes are defined in the drill bit; and the BFRP is pushed to push off the magnetic baffle to lower the BFRP to a set position, and then a space between the inner and outer cylinders is grouted.Type: GrantFiled: January 26, 2022Date of Patent: October 3, 2023Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)Inventors: Zhenwei Dai, Anle Zhang, Shengtao Zhou, Yanjun Zhang, Xiaolin Fu, Runqing Ye, Jinjun Guo, Zhigang Du
-
Patent number: 11755600Abstract: A system reduces the time and resources needed to search a large dataset by preprocessing the dataset prior to receiving a query. Generally, the system evaluates and combines rules that govern the validity of the data. The system combines rules to determine conditions under which data objects in the dataset are invalid. After a query is issued, the system quickly eliminates data objects from the response by applying the conditions rather than the individual rules to the data objects.Type: GrantFiled: September 14, 2022Date of Patent: September 12, 2023Assignee: SABRE GLBL INC.Inventor: Yanjun Zhang
-
Patent number: 11733135Abstract: An integral tension test system for a large-tonnage basalt fiber anchor cable includes: a plurality of basalt fiber anchoring bars each comprising a basalt fiber reinforced plastic (BFRP) bundle, a steel strand, a first and a second steel casing pipes, the BFRP bundle including a plurality of BFRPs, and a grating array temperature, stress and vibration sensing optical cables bonded in the BFRP; a vibration table and a reaction frame arranged thereon, wherein the first steel casing pipe of the basalt fiber anchoring bar is located in the reaction frame, the steel strand penetrates one end of the reaction frame to be connected to a center hole jack, and the second steel casing pipe of each basalt fiber anchor cable is located outside the reaction frame to be anchored; and a data acquisition module connected to all of the grating array temperature, stress and vibration sensing optical cables.Type: GrantFiled: November 10, 2021Date of Patent: August 22, 2023Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)Inventors: Zhenwei Dai, Shengtao Zhou, Xiaolin Fu, Yanjun Zhang, Anle Zhang, Runqing Ye, Jinjun Guo, Zhigang Du
-
Patent number: 11713553Abstract: A basalt fiber anchoring system with accurate sectioned grouting includes: a plurality of first base plates arranged in an anchoring borehole, where every two first base plates are arranged at an upper end and a lower end of a section to be grouted respectively; a plurality of basalt fiber reinforced plastics (BFRP) penetrating the plurality of first base plates; and a grouting device including a valve pipe and a grouting core pipe, where the valve pipe penetrates all the first base plates, a plurality of grouting ports are defined in a pipe wall of the valve pipe, each of the plurality of grouting ports is covered with an elastic sheath, the grouting core pipe is sleeved with two grout stop sealing plugs at intervals, a plurality of grout outlets are provided between the two grout stop sealing plugs.Type: GrantFiled: December 23, 2021Date of Patent: August 1, 2023Assignee: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)Inventors: Zhenwei Dai, Shengtao Zhou, Xiaolin Fu, Yanjun Zhang, Anle Zhang, Jinjun Guo
-
Publication number: 20230214546Abstract: Method and system for global stabilization control of a hypersonic vehicle. The method can include constructing a longitudinal dynamic model of a non-minimum phase hypersonic vehicle; translating a non-zero equilibrium point of the hypersonic vehicle to the origin of coordinates by transformation of coordinates to transform the longitudinal dynamic model, where the transformed longitudinal dynamic model includes an output dynamic model and an internal dynamic model; performing variable decomposition on the transformed longitudinal dynamic model by state decomposition and constructing an auxiliary system model using decomposed variables, where the auxiliary system model includes output dynamics and internal dynamics; and determining a control law based on a feedback linearization theory according to the output dynamics and realizing the global stabilization control of the hypersonic vehicle with the control law.Type: ApplicationFiled: March 1, 2022Publication date: July 6, 2023Applicant: Beijing Institute of TechnologyInventors: Yanjun Zhang, Jian Sun
-
Publication number: 20230180679Abstract: The present disclosure provides a simplified cotton cultivation method relying on setting bolls on VBs. Not only can the method form seed cotton yield and increase the yield by at least 10% compared with conventional manual pruning or no-prune technique, but also eliminate pruning and topping. The method is a new, simple and feasible simplified cotton cultivation method. The simplified cotton cultivation method relying on setting bolls on VBs includes the following steps: heading a cotton plant to retain only VBs when cotton grows to squaring stage, namely cutting off the first fruiting branch and an upper main stem thereof from the cotton plant after squaring, and only retaining the vegetative branches for growth and development, squaring, flowering, and setting bolls.Type: ApplicationFiled: July 20, 2022Publication date: June 15, 2023Inventors: HEZHONG DONG, JUNJUN NIE, YANJUN ZHANG, JIANLONG DAI, ZHENGPENG CUI, DONGMEI ZHANG, LIJIE ZHAN
-
Publication number: 20230151575Abstract: A rapid construction device for a prestressed basalt fiber anchor rod, includes a sleeve drill rod and a drill bit; the sleeve drill rod includes an inner and an outer cylinders; a middle of the drill bit is connected to a lower end of the inner cylinder, an edge of the drill is connected to a lower end of the outer cylinder, a constraint hole is defined in the middle of the drill bit for allowing a basalt fiber reinforced plastic (BFRP) penetrating therethrough, a magnetic baffle is arranged at a lower end of the constraint hole to shield the constraint hole, and a plurality of through holes are defined in the drill bit; and the BFRP is pushed to push off the magnetic baffle to lower the BFRP to a set position, and then a space between the inner and outer cylinders is grouted.Type: ApplicationFiled: January 26, 2022Publication date: May 18, 2023Applicant: Wuhan Center, China Geological Survey (Central South China Innovation Center for Geosciences)Inventors: Zhenwei Dai, Anle Zhang, Shengtao Zhou, Yanjun Zhang, Xiaolin Fu, Runqing Ye, Jinjun Guo, Zhigang Du