Patents by Inventor Zhi Tang
Zhi Tang 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: 10210281Abstract: A method and system for obtaining a knowledge point implicit relationship are provided; first, establishing a knowledge point explicit relationship map according to knowledge point explicit relationship strengths; second, computing according to said knowledge point explicit relationship map a simple path set of two knowledge points; then, computing the implicit relationship strength values corresponding to each simple path in said simple path set; further, comparing the relationship strength values of the simple paths and setting as the significant implicit relationship strength value the simple path relationship strength having the largest value also greater than a preset threshold value.Type: GrantFiled: December 6, 2013Date of Patent: February 19, 2019Assignees: PEKING UNIVERSITY FOUNDER GROUP CO., LTD., FOUNDER APABI TECHNOLOGY LIMITED, PEKING UNIVERSITYInventors: Mao Ye, Wei Wan, Jianbo Xu, Zhi Tang, Lifeng Jin
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Publication number: 20190024225Abstract: The present disclosure relates to new nickel-iron-aluminum-chromium based alloys. Generally, the new alloys contain 20-40 at. % Ni, 15-40 at. % Fe, 5-20 at % Al, and 5-26 at. % Cr, the balance being optional incidental elements and unavoidable impurities. Generally, methods for producing the new alloys include one or more of heating a mixture above its liquidus temperature, then cooling the mixture below its solidus temperature, optionally hot and/or cold working the solid material into a final product form, then heating and quenching the solid material, and precipitation hardening the solid material.Type: ApplicationFiled: October 6, 2017Publication date: January 24, 2019Inventors: Zhi Tang, Lynette M. Karabin, Yijia Gu, Cagatay Yanar, Wei Wang, Xuan Nguyen-Dinh, Daniel J. Sauza
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Patent number: 10145977Abstract: A method for positioning a target in a three-dimensional CT image and a security check system. The method includes: displaying a three-dimensional CT image; receiving a selection by a user of at least one area of the three-dimensional CT image at a first viewing angle to generate a first three-dimensional description; receiving a selection by the user of at least one area of the three-dimensional CT image at a second viewing angle to generate a second three-dimensional description, wherein an angle between the first viewing angle and the second viewing angle is within a predetermined range and the first three-dimensional description and the second three-dimensional description are related to a size, a location, and/or a physical property of a target at corresponding viewing angles; and determining the target in the three-dimensional CT image based on the first three-dimensional description and the second three-dimensional description.Type: GrantFiled: December 15, 2015Date of Patent: December 4, 2018Assignee: NUCTECH COMPANY LIMITEDInventors: Zhiqiang Chen, Li Zhang, Shuo Wang, Yunda Sun, Qingping Huang, Zhi Tang
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Publication number: 20180200834Abstract: The present disclosure relates to methods of additively manufacturing multi-region alloy products. The multi-region products generally comprise a first region having a first crystallographic structure, and a second region having a second crystallographic structure, different than the first, wherein at least one of the first and the second crystallographic structures is a multi-phase microstructure. In one embodiment, an energy source is used to selectively produce at least some of the first region and/or at least some of the second region. The locations and/or volumes of one or more regions may be preselected and/or controlled so as to produce multi-region products having tailored microstructures.Type: ApplicationFiled: January 16, 2018Publication date: July 19, 2018Inventors: Raymond J. Kilmer, Zhi Tang, Lynette M. Karabin, David W. Heard
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Patent number: 9805504Abstract: The present disclosure discloses an image display method in a CT system. The method comprises: implementing CT scanning on an inspected object, to obtain CT projection data; organizing the CT projection data according to a predetermined interval; extracting basic data from the organized CT projection data by using a fixed angle as a start angle and using 360 degrees as an interval; forming a DR image based on the extracted basic data; reconstructing a three-dimensional image of the inspected object from the CT projection data; and displaying the DR image and the reconstructed three-dimensional image on a screen at the same time. In the solution, the CT data is processed to obtain DR data. After the DR data is obtained, a DR image is obtained directly using a DR data processing algorithm. This enables an image recognizer to more accurately and more rapidly inspect goods carried by a passenger using the existing experience in image recognition of the DR image.Type: GrantFiled: May 14, 2015Date of Patent: October 31, 2017Assignee: Nuctech Company LimitedInventors: Li Zhang, Zhiqiang Chen, Qingping Huang, Yunda Sun, Zhi Tang, Le Shen, Hu Tang, Qianlu Ren, Xin Jin
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Patent number: 9795390Abstract: A hemostatic clip comprises a clamping assembly and a clip base. The clamping assembly comprises a clip body and a steel wire buckle sequentially connected; a fixed hinge pin is arranged at the front end of the clip base, the clip body consists of two clamping arms, the tail ends of the two clamping arms are connected through a movable hinge pin, the middle part of each of the two clamping arms is provided with a chute, the fixed hinge pin penetrates through the chutes, and the two clamping arms reciprocate along the chutes so that the clip body can be opened and closed; a bent structure is arranged at the tail end of each chute; and when the clamping arms move to make the fixed hinge pin be located in the bent structures, the two clamping arms are located in the locked and closed position.Type: GrantFiled: June 30, 2014Date of Patent: October 24, 2017Assignee: MICRO-TECH (NANJING) CO., LTDInventors: Hongyan Jin, Zhi Tang, Mingqiao Fan, Ran Song
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Patent number: 9786070Abstract: A CT system for security check and a method thereof are provided. The method includes: reading inspection data of an inspected object; inserting at least one three-dimensional (3D) Fictional Threat Image (FTI) into a 3D inspection image of the inspected object, which is obtained from the inspection data; receiving a selection of at least one region in the 3D inspection image including the 3D FTI or at least one region in a two-dimensional (2D) inspection image including a 2D FTI corresponding to the 3D FTI, wherein the 2D inspection image is obtained from the 3D inspection image or is obtained from the inspection data; and providing a feedback of the 3D inspection image including at least one 3D FTI in response to the selection. With the above solution, it is convenient for a user to rapidly mark a suspected object in the CT image, and provides a feedback of whether a FTI is included.Type: GrantFiled: June 24, 2015Date of Patent: October 10, 2017Assignee: NUCTECH COMPANY LIMITEDInventors: Zhiqiang Chen, Li Zhang, Shuo Wang, Yunda Sun, Qingping Huang, Zhi Tang
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Publication number: 20170276823Abstract: Disclosed is a method for positioning a target in a three-dimensional CT image and a CT system for security inspection. The method includes: displaying a three-dimensional CT image; receiving a selection by a user of at least one area of the three-dimensional CT image at a viewing angle; generating at least one set of three-dimensional objects in a depth direction based on the selection; and determining a target object from the set. With the above technical solutions, the user may be facilitated in marking a suspected object in a CT image in a quick manner.Type: ApplicationFiled: December 14, 2015Publication date: September 28, 2017Applicant: NUCTECH COMPANY LIMITEDInventors: Zhiqiang CHEN, Li ZHANG, Shuo WANG, Yunda SUN, Qingping HUANG, Zhi TANG
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Logic processing apparatus and logic processing method for composite graphs in fixed layout document
Patent number: 9727536Abstract: A logic process apparatus for composite graphs in a fixed layout document is provided in this invention. The apparatus includes a composite graph block extraction unit, for extracting composite graph blocks from the fixed layout document, a document parsing unit, for parsing the fixed layout document to obtain text primitives contained therein, a legend primitive extraction unit, for extracting legend primitives from the text primitives, a correlation detection unit, for detecting correlations between the composite graph blocks and the legend primitives, and a correlation storage unit, for storing the detected correlations. A logic process method for composite graphs in a fixed layout document is also provided.Type: GrantFiled: December 12, 2013Date of Patent: August 8, 2017Assignees: Peking University Founder Group Co., Ltd., Founder APABI Technology Limited, Peking UniversityInventors: Canhui Xu, Zhi Tang, Xin Tao, Cao Shi -
Publication number: 20170176631Abstract: A method for positioning a target in a three-dimensional CT image and a security check system. The method includes: displaying a three-dimensional CT image; receiving a selection by a user of at least one area of the three-dimensional CT image at a first viewing angle to generate a first three-dimensional description; receiving a selection by the user of at least one area of the three-dimensional CT image at a second viewing angle to generate a second three-dimensional description, wherein an angle between the first viewing angle and the second viewing angle is within a predetermined range and the first three-dimensional description and the second three-dimensional description are related to a size, a location, and/or a physical property of a target at corresponding viewing angles; and determining the target in the three-dimensional CT image based on the first three-dimensional description and the second three-dimensional description.Type: ApplicationFiled: December 15, 2015Publication date: June 22, 2017Applicant: NUCTECH COMPANY LIMITEDInventors: Zhiqiang CHEN, Li ZHANG, Shuo WANG, Yunda SUN, Qingping HUANG, Zhi TANG
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Patent number: 9574156Abstract: A lubricant composition comprising lubricating oil and a compound containing phosphorus and an amine of formula I: wherein R1 is a hydrocarbon group and at least one of R1 is selected from: —(C1-C20)alkyl, —(C1-C20)alkenyl, —(C5-C20)cycloalkyl; R is selected from: —(C4-C20)alkyl, —(C4-C20)alkenyl, —(C5-C20)cycloalkyl; and wherein R2, R3 and R4 are independently selected from: —H, —(C6-C36)alkyl, —(C6-C36)alkenyl, —(C6-C36)cycloalkyl, wherein at least one of R2, R3 and R4 is not H; X is O or S; Y1 and Y2 are selected from S and O; m is 1 or 2, n is 0 or 1, p is 1 or 2, provided that m+n+p=3 and q=0.8 to 1.2*p, wherein the compound provides at least 48 ppm of phosphorus and a molar ratio phosphorus to nitrogen (P/N) in the range of about 0.40 to about 1.50.Type: GrantFiled: December 10, 2013Date of Patent: February 21, 2017Assignee: Afton Chemical CorporationInventors: Hong-Zhi Tang, Lee D. Saathoff
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Patent number: 9569407Abstract: The present invention provides an apparatus for logically processing a composite graph in a formatted document, the apparatus comprising: a composite graph block extraction unit, used to extract a composite graph block in the formatted document; a document parsing unit, used to parse the formatted document to obtain a text element contained therein; a cutline element extraction unit, used to extract a cutline element from the text element; a correlativity detection unit, used to detect correlativity between the composite graph block and the cutline element; a correlativity storage unit, used to store the detected correlativity. The present invention also provides a method for logically processing a composite graph in a formatted document. According to the technical scheme disclosed in the present invention, it is easily achieve layout understanding of the composite graph in a graph-text mixed layout of the formatted document, so as to avoid a logical error.Type: GrantFiled: December 3, 2013Date of Patent: February 14, 2017Assignees: Peking University Founder Group Co., Ltd., Founder Apabi Technology Limited, Peking UniversityInventors: Canhui Xu, Zhi Tang, Xin Tao, Cao Shi
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Patent number: 9542362Abstract: The present invention provides an apparatus for logically processing a composite graph in a formatted document, the apparatus comprising: a composite graph block extraction unit, used to extract a composite graph block in the formatted document; a document parsing unit, used to parse the formatted document to obtain a text element contained therein; a cutline element extraction unit, used to extract a cutline element from the text element; a correlativity detection unit, used to detect correlativity between the composite graph block and the cutline element; a correlativity storage unit, used to store the detected correlativity. The present invention also provides a method for logically processing a composite graph in a formatted document. According to the technical scheme disclosed in the present invention, it is easily achieve layout understanding of the composite graph in a graph-text mixed layout of the formatted document, so as to avoid a logical error.Type: GrantFiled: December 3, 2013Date of Patent: January 10, 2017Assignees: Peking University Founder Group Co., Ltd., Founder Apabi Technology Limited, Peking UniversityInventors: Canhui Xu, Zhi Tang, Xin Tao, Cao Shi
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Patent number: 9542624Abstract: The present invention discloses recognizing methods of flaky or blocky prohibited articles, explosives or drugs. Specifically, the method for recognizing flaky prohibited articles, explosives or drugs comprises steps of: (1) reading in tomogram data of an object to be inspected for one tomogram; (2) pre-processing the tomogram data; (3) splitting the pre-processed tomogram data into a plurality of regions that have similar physical properties; (4) analyzing whether each of the split regions is a flaky region; (5) determining whether the flaky region recognized in the current tomogram can be merged with the flaky region detected from the previous tomogram, so as to form a flaky target; (6) determining whether each detected flaky target is complete or finished; (7) repeating steps (1)-(6) and processing each tomogram data layer by layer, until all of the tomogram data have been processed.Type: GrantFiled: March 18, 2016Date of Patent: January 10, 2017Assignees: Tsinghua University, Nuctech Company LimitedInventors: Li Zhang, Qingping Huang, Yunda Sun, Lei Lei, Zhi Tang
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Publication number: 20160367258Abstract: A hemostatic clip comprises a clamping assembly and a clip base. The clamping assembly comprises a clip body and a steel wire buckle sequentially connected; a fixed hinge pin is arranged at the front end of the clip base, the clip body consists of two clamping arms, the tail ends of the two clamping arms are connected through a movable hinge pin, the middle part of each of the two clamping arms is provided with a chute, the fixed hinge pin penetrates through the chutes, and the two clamping arms reciprocate along the chutes so that the clip body can be opened and closed; a bent structure is arranged at the tail end of each chute; and when the clamping arms move to make the fixed hinge pin be located in the bent structures, the two clamping arms are located in the locked and closed position.Type: ApplicationFiled: June 30, 2014Publication date: December 22, 2016Applicant: MICO-TECH (NANJING) CO., LTD.Inventors: Hongyan JIN, Zhi TANG, Mingqiao FAN, Ran SONG
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Publication number: 20160314378Abstract: The present invention discloses recognizing methods of flaky or blocky prohibited articles, explosives or drugs. Specifically, the method for recognizing flaky prohibited articles, explosives or drugs comprises steps of: (1) reading in tomogram data of an object to be inspected for one tomogram; (2) pre-processing the tomogram data; (3) splitting the pre-processed tomogram data into a plurality of regions that have similar physical properties; (4) analyzing whether each of the split regions is a flaky region; (5) determining whether the flaky region recognized in the current tomogram can be merged with the flaky region detected from the previous tomogram, so as to form a flaky target; (6) determining whether each detected flaky target is complete or finished; (7) repeating steps (1)-(6) and processing each tomogram data layer by layer, until all of the tomogram data have been processed.Type: ApplicationFiled: March 18, 2016Publication date: October 27, 2016Inventors: Li Zhang, Qingping Huang, Yunda Sun, Lei Lei, Zhi Tang
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Patent number: 9469825Abstract: A transmission lubricant composition, a method of lubricating a machine part, and a transmission are provided that utilize select boronated and phosphorylated N-substituted polyisobutylene succinimide dispersants combined with metal containing detergents to achieve high friction durability and low wear rates for automatic transmissions.Type: GrantFiled: March 12, 2015Date of Patent: October 18, 2016Assignee: Afton Chemical CorporationInventor: Tom Hong-Zhi Tang
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Patent number: 9465924Abstract: An apparatus for preventing replay attacks and a method for preventing replay attacks are provided in this invention, wherein the apparatus for preventing replay attacks comprises: an acquisition unit for, when a request for operating a digital content is received, acquiring current location information of a set of placeholder files; a determination unit for determining whether the current location information is consistent with recorded location information of the placeholder file; a protection unit for, when inconsistent as determined by the determination unit, wherein there is a correspondence between the digital content and the set of placeholder files.Type: GrantFiled: December 11, 2013Date of Patent: October 11, 2016Assignees: PEKING UNIVERSITY, PEKING UNIVERSITY FOUNDER GROUP CO., LTD., FOUNDER APABI TECHNOLOGY LIMITEDInventors: Cheng Qu, Yinyan Yu, Zhi Tang
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Patent number: 9449399Abstract: The present invention discloses recognizing methods of flaky or blocky prohibited articles, explosives or drugs. Specifically, the method for recognizing flaky prohibited articles, explosives or drugs comprises steps of: (1) reading in tomogram data of an object to be inspected for one tomogram; (2) pre-processing the tomogram data; (3) splitting the pre-processed tomogram data into a plurality of regions that have similar physical properties; (4) analyzing whether each of the split regions is a flaky region; (5) determining whether the flaky region recognized in the current tomogram can be merged with the flaky region detected from the previous tomogram, so as to form a flaky target; (6) determining whether each detected flaky target is complete or finished; (7) repeating steps (1)-(6) and processing each tomogram data layer by layer, until all of the tomogram data have been processed.Type: GrantFiled: January 23, 2014Date of Patent: September 20, 2016Assignees: Tsinghua University, Nuctech Company LimitedInventors: Li Zhang, Qingping Huang, Yunda Sun, Lei Lei, Zhi Tang
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Publication number: 20160264906Abstract: A transmission lubricant composition, a method of lubricating a machine part, and a transmission are provided that utilize select boronated and phosphorylated N-substituted polyisobutylene succinimide dispersants combined with metal containing detergents to achieve high friction durability and low wear rates for automatic transmissions.Type: ApplicationFiled: March 12, 2015Publication date: September 15, 2016Inventor: Tom Hong-Zhi Tang