Patents by Inventor Tianye Niu
Tianye Niu 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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Patent number: 11320353Abstract: A creep strength analysis and assessment method includes comparing whether a maximum value of a local strain and a membrane strain are less than a corresponding allowable strain, and if less, determining that a component is safe; otherwise, performing the following steps: performing stress linearization on a path to obtain a local primary membrane stress PL and a local primary bending stress Pb; averaging shear stress components on the path to obtain an average shear stress ?m; obtaining a strength limit Smt, a time-independent minimum stress strength value Sm and a temperature- and time-dependent stress strength limit St for a given material, a design lifetime and a design temperature; comparing whether PL, PL+Pb and PL+Pb/Kt are less than Smt, KSm and St; and comparing whether ?m is less than 0.6Sm and 0.6St, and if less, the component is safe, otherwise, the component is unsafe.Type: GrantFiled: October 10, 2019Date of Patent: May 3, 2022Assignee: East China University of Science and TechnologyInventors: Fuzhen Xuan, Tianye Niu, Jianguo Gong
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Publication number: 20210341365Abstract: A creep strength analysis and assessment method includes comparing whether a maximum value of a local strain and a membrane strain are less than a corresponding allowable strain, and if less, determining that a component is safe; otherwise, performing the following steps: performing stress linearization on a path to obtain a local primary membrane stress PL and a local primary bending stress Pb; averaging shear stress components on the path to obtain an average shear stress ?m; obtaining a strength limit Smt, a time-independent minimum stress strength value Sm and a temperature- and time-dependent stress strength limit St for a given material, a design lifetime and a design temperature; comparing whether PL, PL+Pb and PL+Pb/Kt are less than Smt, KSm and St; and comparing whether ?m is less than 0.6Sm and 0.6St, and if less, the component is safe, otherwise, the component is unsafe.Type: ApplicationFiled: October 10, 2019Publication date: November 4, 2021Inventors: Fuzhen Xuan, Tianye Niu, Jianguo Gong
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Patent number: 10722205Abstract: A method and apparatus for optimizing a blocking grating for cone beam CT image scattering correction, wherein the method comprises: scanning a blocking grating to establish a swinging model thereof; setting initial coordinates of the blocking grating along a longitudinal direction of a detector in an initial projection, and establishing an objective function between CBCT image data missing voxel values and the coordinates of the blocking grating along the longitudinal direction of the detector according to the swinging model; minimizing the objective function with a mesh-adaptive direct search algorithm to generate optimized coordinates of the blocking grating along the longitudinal direction of the detector.Type: GrantFiled: December 21, 2017Date of Patent: July 28, 2020Assignee: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGYInventors: Xiaokun Liang, Yaoqin Xie, Zhicheng Zhang, Tianye Niu
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Patent number: 10259372Abstract: A mobile-type maintenance square-shaped bin including a bin body, a travelling mechanism provided under the bin body, a car head connected with one end of the bin body, an inlet and an outlet provided at the other end of the bin body, a sealed door provided on the inlet and the outlet, an allocation and transportation device mutually connected with a microcomputer signal provided at a front end of the bin body as well as provided over an internal portion of the bind body, an maintenance platform provided at a bottom of the internal portion of the bin body, a tool platform provided adjacently to the maintenance platform, an ash-removal mechanism provided at an upper portion of the maintenance platform, an air-conditioning device provided at an outer portion of the bin body, and a scanning mechanism provided at a front portion of the maintenance platform.Type: GrantFiled: April 18, 2017Date of Patent: April 16, 2019Assignees: STATE GRID HENAN ELECTRIC POWER CORPORATION MAINTENANCE COMPANY, STATE GRID HENAN ELECTRIC POWER COMPANY, STATE GRID ZHENGZHOU ELECTRIC POWER SUPPLY COMPANY, HENAN EPRI ELECTRIC POWER TECHNOLOGY CO., LTD.Inventors: Jiaxin Wu, Guoqing Jiang, Lu Li, Jinguang Zhang, Yingwen Li, Hui Shen, Dongsheng Xu, Xiaohui Wang, Xin Qu, Li Zhang, Haiyun Guo, Hui Lin, Tianye Niu, Qi Lan, Yongheng Ku, Lujiang Zhang, Xiaodan Wang, Runge Hu, Yong Lu, Furong Liu, Weihua Lian, Yucai Zhao
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Publication number: 20180132807Abstract: A method and apparatus for optimizing a blocking grating for cone beam CT image scattering correction, wherein the method comprises: scanning a blocking grating to establish a swinging model thereof; setting initial coordinates of the blocking grating along a longitudinal direction of a detector in an initial projection, and establishing an objective function between CBCT image data missing voxel values and the coordinates of the blocking grating along the longitudinal direction of the detector according to the swinging model; minimizing the objective function with a mesh-adaptive direct search algorithm to generate optimized coordinates of the blocking grating along the longitudinal direction of the detector.Type: ApplicationFiled: December 21, 2017Publication date: May 17, 2018Inventors: Xiaokun LIANG, Yaoqin XIE, Zhicheng ZHANG, Tianye NIU
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Publication number: 20170361753Abstract: A mobile-type maintenance square-shaped bin including a bin body, a travelling mechanism provided under the bin body, a car head connected with one end of the bin body, an inlet and an outlet provided at the other end of the bin body, a sealed door provided on the inlet and the outlet, an allocation and transportation device mutually connected with a microcomputer signal provided at a front end of the bin body as well as provided over an internal portion of the bind body, an maintenance platform provided at a bottom of the internal portion of the bin body, a tool platform provided adjacently to the maintenance platform, an ash-removal mechanism provided at an upper portion of the maintenance platform, an air-conditioning device provided at an outer portion of the bin body, and a scanning mechanism provided at a front portion of the maintenance platform.Type: ApplicationFiled: April 18, 2017Publication date: December 21, 2017Inventors: Jiaxin WU, Guoqing JIANG, Lu LI, Jinguang ZHANG, Yingwen LI, Hui SHEN, Dongsheng XU, Xiaohui WANG, Xin QU, Li ZHANG, Haiyun GUO, Hui LIN, Tianye NIU, Qi LAN, Yongheng KU, Lujiang ZHANG, Xiaodan WANG, Runge HU, Yong LU, Furong LIU, Weihua LIAN, Yucai ZHAO
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Patent number: 8995609Abstract: Briefly described, in an exemplary form, the present invention discloses a system, method and apparatus for X-ray Compton scatter imaging. In one exemplary embodiment, the present invention uses two detectors in a volumetric CT system. A first detector is positioned generally in-line with the angle of attack of the incoming energy, or, generally in-line of path x, where x is the path of the incoming energy. The first, or primary, detector detects various forms of radiation emanating from an object undergoing testing. In some embodiments, the present invention further comprises a Compton scattering system positioned generally normal to path x. In some embodiments, the Compton scattering subsystem comprises a second detector and a pin-hole collimator. The second detector detects Compton scattering energy from the object being tested.Type: GrantFiled: August 2, 2012Date of Patent: March 31, 2015Assignee: Georgia Tech Research CorporationInventors: Lei Zhu, Tianye Niu
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Patent number: 8705827Abstract: Described herein are improved methods for correcting cone beam computed tomography signals to reduce scatter contamination contained therein. Generally, the improved methods involve generating a plurality of two-dimensional projection images of a subject from a three-dimensional multi-detector computed tomography image of the subject. This is followed by subtracting the plurality of two-dimensional projection images from a plurality of two-dimensional cone beam projection images of the subject to produce a plurality of two-dimensional estimated error projections that comprise an estimated error in the plurality of two-dimensional cone beam projection images. The plurality of two-dimensional estimated error projection images are subtracted from the plurality of two-dimensional cone beam projection images to generate a plurality of two-dimensional corrected cone beam projection images.Type: GrantFiled: April 15, 2011Date of Patent: April 22, 2014Assignee: Georgia Tech Research CorporationInventors: Lei Zhu, Tianye Niu
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Publication number: 20130032715Abstract: Briefly described, in an exemplary form, the present invention discloses a system, method and apparatus for X-ray Compton scatter imaging. In one exemplary embodiment, the present invention uses two detectors in a volumetric CT system. A first detector is positioned generally in-line with the angle of attack of the incoming energy, or, generally in-line of path x, where x is the path of the incoming energy. The first, or primary, detector detects various forms of radiation emanating from an object undergoing testing. In some embodiments, the present invention further comprises a Compton scattering system positioned generally normal to path x. In some embodiments, the Compton scattering subsystem comprises a second detector and a pin-hole collimator. The second detector detects Compton scattering energy from the object being tested.Type: ApplicationFiled: August 2, 2012Publication date: February 7, 2013Applicant: Georgia Tech Research CorporationInventors: Lei Zhu, Tianye Niu
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Publication number: 20120263360Abstract: Described herein are improved methods for correcting cone beam computed tomography signals to reduce scatter contamination contained therein. Generally, the improved methods involve generating a plurality of two-dimensional projection images of a subject from a three-dimensional multi-detector computed tomography image of the subject. This is followed by subtracting the plurality of two-dimensional projection images from a plurality of two-dimensional cone beam projection images of the subject to produce a plurality of two-dimensional estimated error projections that comprise an estimated error in the plurality of two-dimensional cone beam projection images. The plurality of two-dimensional estimated error projection images are subtracted from the plurality of two-dimensional cone beam projection images to generate a plurality of two-dimensional corrected cone beam projection images.Type: ApplicationFiled: April 15, 2011Publication date: October 18, 2012Applicant: Georgia Tech Research CorporationInventors: LEI ZHU, Tianye Niu