Patents by Inventor Xia YAO
Xia YAO 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).
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Publication number: 20240135570Abstract: A method for improving estimation of leaf area index in an early growth stage of wheat based on red-edge bands of Sentinel-2 satellite images includes the following steps: acquiring field background spectrum and wheat canopy spectrum information by means of Sentinel-2; respectively acquiring a “straw-soil” spectrum and a “wheat-straw-soil” spectrum, and calculating slopes of red-edge areas of the “straw-soil” spectrum and the “wheat-straw-soil” spectrum; calculating a tangent function SATF corrected by a background adjustment coefficient ?; constructing a wheat LAI estimation model based on a spectral variable SATFNIR-RE2; performing preliminary screening on the LAI estimation model using cross validation; and then testing the screened model with independent data.Type: ApplicationFiled: February 6, 2022Publication date: April 25, 2024Applicant: NANJING AGRICULTURAL UNIVERSITYInventors: Xia YAO, Wei LI, Tao CHENG, Yan ZHU, Yongchao TIAN, Weixing CAO, Dong LI, Hengbiao ZHENG, Yu ZHANG, Jifeng MA, Xue WANG, Caili GUO
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Patent number: 11954417Abstract: Disclosed a method for predicting permeability of a multi-mineral phase digital core based on deep learning. In the present disclosure, a three-dimensional digital core is constructed and a pore structure is randomly generated; after a plurality of multi-mineral digital core images is acquired by performing image segmentation on the three-dimensional digital core, permeability corresponding to each of the multi-mineral digital core images is acquired by simulation using multi-physics field simulation software and a multi-mineral digital core data set is constructed based on the plurality of multi-mineral digital core images and the permeability corresponding to each of the multi-mineral digital core images; an SE-ResNet18 convolutional neural network is constructed and trained with the multi-mineral digital core data set; and an image of a multi-mineral core to be predicted is input into the trained SE-ResNet18 convolutional neural network to determine the permeability of the multi-mineral core.Type: GrantFiled: November 8, 2023Date of Patent: April 9, 2024Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)Inventors: Hai Sun, Liang Zhou, Dongyan Fan, Lei Zhang, Jun Yao, Yongfei Yang, Kai Zhang, Qian Sang, Xia Yan, Lei Liu, Fei Luo, Yuda Kan
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Publication number: 20220189053Abstract: A field wheat stem tillering number extraction method, including: acquiring field wheat point clouds by means of a LiDAR, and extracting any row of wheat point clouds in a research area; projecting a Y axis to a plane, and retaining an X and Z axis; applying adaptive layering to obtain number of clusters of the wheat row; applying hierarchical clustering analysis to obtain tillering number of each wheat cluster; and further obtaining stem tillering number of the whole wheat row, so as to extract a field wheat stem tillering number. The feasibility of an algorithm is verified by comparing the wheat stem tillering number extracted by means of the method with an actually measured field stem tillering number, and the method realizes rapid, accurate and nondestructive extraction of a large-field crop stem tillering number and provides theoretical basis and technical support for extraction of the field wheat stem tillering number.Type: ApplicationFiled: March 20, 2020Publication date: June 16, 2022Applicant: NANJING AGRICULTURAL UNIVERSITYInventors: Xia YAO, Tai GUO, Yuan FANG, Miaomiao ZHAI, Xiao ZHANG, Tao CHENG, Yongchao TIAN, Yan ZHU, Weixin CAO, Yongqiang HU, Changjun XU
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Publication number: 20210395247Abstract: The present invention provides a BTK inhibitor, a pharmaceutically acceptable salt, a polymorph and an application thereof. Specifically, the present invention provides (R)-6-((1-acryloylpiperidin-3-yl)amino)-7-fluoro-4-((2-fluoro-4-morpholinophenyl)amino)-1,2-dihydro-3H-pyrrolo[3,4-c]pyridin-3-one, or the polymorph of a pharmaceutically acceptable salt thereof, and an application thereof. In addition, the present invention further discloses a pharmaceutical composition comprising the inhibitor and an application thereof.Type: ApplicationFiled: March 18, 2020Publication date: December 23, 2021Inventors: Taotao JIANG, Jinjing LI, Shuangni ZHAO, Xia YAO
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Publication number: 20210214358Abstract: Provided are a CDK4/6 inhibitor, a pharmaceutically acceptable salt thereof and a polymorph thereof, and the use thereof. In particular, provided are a polymorph of 2-cyclopropyl-N-(5-((4-ethylpiperazin-1-yl)methyl)pyridin-2-yl)-3-isopropyl-3,8-dihydroimidazo[4?,5?,4,5]cyclopentadieno[1,2-d]pyrimidin-5-amine and a pharmaceutically acceptable salt thereof, and the use thereof. In addition, further disclosed are a pharmaceutical composition of the compound and the use thereof.Type: ApplicationFiled: April 23, 2019Publication date: July 15, 2021Inventors: Taotao JIANG, Jinjing LI, Shuangni ZHAO, Xia YAO
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Publication number: 20210188813Abstract: The present invention provides an EZH2 inhibitor and pharmaceutically acceptable salts and polymorphic substances thereof, and application of the EZH2 inhibitor. Specifically, the present invention provides N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-ethyl-4-(ethyl((1S,4S)-4-(3-methoxyazetidin-1-yl)cyclohexyl)amino)-1-methyl-1H-indazole-6-carboxamide or polymorphic substances of pharmaceutically acceptable salts thereof, and application of N-((4,6-dimethyl-2-oxo-1,2-dihydropyridin-3-yl)methyl)-5-ethyl-4-(ethyl((1S,4S)-4-(3-methoxyazetidin-1-yl)cyclohexyl)amino)-1-methyl-1H-indazole-6-carboxamide. In addition, also disclosed are a pharmaceutical composition containing the inhibitor and application thereof.Type: ApplicationFiled: April 23, 2019Publication date: June 24, 2021Inventors: Taotao JIANG, Shuangni ZHAO, Jinjing LI, Xia YAO
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Patent number: 11029251Abstract: A method for estimating the aboveground biomass of rice based on multi-spectral images of an unmanned aerial vehicle (UAV), including: normatively collecting UAV multi-spectral image data of rice canopy and ground measured biomass data; after collection, preprocessing images, extracting reflectivity and texture feature parameters, calculating a vegetation index, and constructing a new texture index; and by stepwise multiple regression analysis, integrating the vegetation index and the texture index to estimate rice biomass, and establishing a multivariate linear model for estimating biomass. A new estimation model is verified for accuracy by a cross-validation method. The method has high estimation accuracy and less requirements on input data, and is suitable for the whole growth period of rice. Estimating rice biomass by integrating UAV spectrum and texture information is proposed for the first time, and can be widely used for monitoring crop growth by UAV remote sensing.Type: GrantFiled: November 6, 2019Date of Patent: June 8, 2021Assignee: NANJING AGRICULTURAL UNIVERSITYInventors: Yan Zhu, Hengbiao Zheng, Tao Cheng, Xia Yao, Yongchao Tian, Weixing Cao
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Patent number: 10845301Abstract: A crop growth monitoring device based on multi-rotor unmanned aerial vehicle platform includes a multi-rotor unmanned aerial vehicle, a payload and a ground receiver; the payload part includes a multispectral crop growth sensor module, a signal amplification module, a controller module, a wireless data transmission module, and a power module for power supply and a power supply control module, which are connected in sequence; further comprising a gimbal. The crop growth monitoring device based on the multi-rotor unmanned aerial vehicle platform overcomes the influence on measurement caused by the down-wash flow field of the unmanned aerial vehicle, and can transmit the measured data to the ground receiver in real time for online analysis and processing, realizing continuous, real-time, convenient and large-scope acquisition of crop growth information.Type: GrantFiled: December 27, 2016Date of Patent: November 24, 2020Assignee: NANJING AGRICULTURAL UNIVERSITYInventors: Jun Ni, Lili Yao, Yan Zhu, Weixing Cao, Xia Yao, Yongchao Tian, Fang Liu, Fangrong Pang
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Publication number: 20200141877Abstract: A method for estimating the aboveground biomass of rice based on multi-spectral images of an unmanned aerial vehicle (UAV), including: normatively collecting UAV multi-spectral image data of rice canopy and ground measured biomass data; after collection, preprocessing images, extracting reflectivity and texture feature parameters, calculating a vegetation index, and constructing a new texture index; and by stepwise multiple regression analysis, integrating the vegetation index and the texture index to estimate rice biomass, and establishing a multivariate linear model for estimating biomass. A new estimation model is verified for accuracy by a cross-validation method. The method has high estimation accuracy and less requirements on input data, and is suitable for the whole growth period of rice. Estimating rice biomass by integrating UAV spectrum and texture information is proposed for the first time, and can be widely used for monitoring crop growth by UAV remote sensing.Type: ApplicationFiled: November 6, 2019Publication date: May 7, 2020Applicant: NANJING AGRICULTURAL UNIVERSITYInventors: Yan ZHU, Hengbiao ZHENG, Tao CHENG, Xia YAO, Yongchao TIAN, Weixing CAO
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Patent number: 10539437Abstract: A crop growth sensing apparatus and method supporting agricultural machinery variable-quantity fertilization, includes a shock-absorbing support, a shock-absorbing frame, and a cantilever beam. The shock-absorbing support is connected to an agricultural machinery vehicle frame. The cantilever beam is pivotally connected above a shock-absorbing spring of the shock-absorbing support. The cantilever beam, by means shock-absorbing springs mounted thereabove and thereunder, is pivotally connected to the shock-absorbing frame. The shock-absorbing frame is fixedly connected to a crop growth sensor. The crop growth sensing method employs an engine vibration model of the agricultural machinery and a vibration model for vehicle wheels and farmland road surface as excitations in analyzing vibrations of a crop growth multispectral sensor shock-absorbing apparatus to determine the number and mount positions of sensitive elements of the crop growth multispectral sensor.Type: GrantFiled: December 28, 2016Date of Patent: January 21, 2020Assignee: NANJING AGRICULTURAL UNIVERSITYInventors: Jun Ni, Weixing Cao, Yan Zhu, Shanshan Yu, Yongchao Tian, Xia Yao, Fangrong Pang, Lili Yao, Fang Liu
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Publication number: 20190017853Abstract: A crop growth sensing apparatus and method supporting agricultural machinery variable-quantity fertilization, includes a shock-absorbing support, a shock-absorbing frame, and a cantilever beam. The shock-absorbing support is connected to an agricultural machinery vehicle frame. The cantilever beam is pivotally connected above a shock-absorbing spring of the shock-absorbing support. The cantilever beam, by means shock-absorbing springs mounted thereabove and thereunder, is pivotally connected to the shock-absorbing frame. The shock-absorbing frame is fixedly connected to a crop growth sensor. The crop growth sensing method employs an engine vibration model of the agricultural machinery and a vibration model for vehicle wheels and farmland road surface as excitations in analyzing vibrations of a crop growth multispectral sensor shock-absorbing apparatus to determine the number and mount positions of sensitive elements of the crop growth multispectral sensor.Type: ApplicationFiled: December 28, 2016Publication date: January 17, 2019Applicant: NANJING AGRICULTURAL UNIVERSITYInventors: Jun NI, Weixing CAO, Yan ZHU, Shanshan YU, Yongchao TIAN, Xia YAO, Fangrong PANG, Lili YAO, Fang LIU
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Publication number: 20190011355Abstract: A crop growth monitoring device based on a multi-rotor unmanned aerial vehicle platform includes a multi-rotor unmanned aerial vehicle, a payload and a ground receiver; the payload part includes a multispectral crop growth sensor module, a signal amplification module, a controller module, a wireless data transmission module, and a power module for power supply and a power supply control module, which are connected in sequence; further comprising a gimbal. The crop growth monitoring device based on the multi-rotor unmanned aerial vehicle platform overcomes the influence on measurement caused by the down-wash flow field of the unmanned aerial vehicle, and can transmit the measured data to the ground receiver in real time for online analysis and processing, realizing continuous, real-time, convenient and large-scope acquisition of crop growth information.Type: ApplicationFiled: December 27, 2016Publication date: January 10, 2019Applicant: NANJING AGRICULTURAL UNIVERSITYInventors: Jun NI, Lili YAO, Yan ZHU, Weixing CAO, Xia YAO, Yongchao TIAN, Fang LIU, Fangrong PANG