Patents by Inventor Tian-Bing Xu
Tian-Bing Xu 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: 11958789Abstract: A method for determining a consistency coefficient of a power-law cement grout includes: determining a water-cement ratio of the power-law cement grout; according to engineering practice requirements, determining a time required to determine the consistency coefficient of the power-law cement grout; and obtaining the consistency coefficient of the power-law cement grout. The method is accurate and reliable, requires less calculation, etc.; and has very high practical value and popularization value in environmental protection and ecological restoration.Type: GrantFiled: December 12, 2023Date of Patent: April 16, 2024Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Zhi-quan Yang, Jun-fan Xiong, Ying-yan Zhu, Yi Yang, Yong-shun Han, Muhammad Asif Khan, Jian-bin Xie, Tian-bing Xiang, Bi-hua Zhang, Han-hua Xu, Jie Zhang, Shen-zhang Liu, Qi-jun Jia, Cheng-yin Ye, Gang Li
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Patent number: 11946845Abstract: A method for determining a three-dimensional tortuosity of a loose and broken rock-soil mass, includes the following steps: a particle grading curve of the loose and broken rock-soil mass is obtained by utilizing a particle size analysis, and followed by calculating an equivalent particle size and an average particle size; a porosity of the loose and broken rock-soil mass is obtained by utilizing a moisture content test, a density test, and a specific gravity test; the three-dimensional tortuosity of the loose and broken rock-soil mass is obtained by utilizing the equivalent particle size, the average particle size and the porosity of the loose and broken rock-soil mass. The method has the advantages of simple logic, accuracy and reliability, simple and fast parameter determination, and has high practical value and promotion value in the field of environmental protection and ecological restoration technology.Type: GrantFiled: November 1, 2023Date of Patent: April 2, 2024Assignee: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGYInventors: Zhi-quan Yang, Jia-jun Zhang, Jun-fan Xiong, Ying-yan Zhu, Yi Yang, Muhammad Asif Khan, Tian-bing Xiang, Bi-hua Zhang, Han-hua Xu, Jie Zhang, Shen-zhang Liu
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Patent number: 11800807Abstract: Various embodiments include a mechanical amplification mechanism in a compact power unit of an electricity generator containing at least one piezoelectric element. The power units can be used singly but are also designed to be stacked, serially and/or in parallel with each other, and to be mounted within or under a substrate (e.g., a roadway or aircraft runway) such that the system achieves ultra-high-density of electricity production per unit area. Embodiments of the disclosed subject matter are therefore directed to a mechanical-to-electrical power generator, an accompanying power electronic-circuit, and power transmission and/or power saving into an energy-storage device. Therefore, the generated electrical power can be conditioned for, for example, transmitting to an electrical grid or for charging batteries of electrical vehicles. Other methods of formation of the power units and related systems are disclosed.Type: GrantFiled: July 31, 2019Date of Patent: October 24, 2023Assignee: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: Jian-Qiao Sun, Cheng Chen, Amir Sharafi, Tian-Bing Xu, Atousa Yazdani
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Patent number: 11474344Abstract: A programmable, deformable incident-energy shaper comprising: a base having top and bottom surfaces with a perforation there-between; a protrusion connected to, and extending outwardly from, a center of the top surface; a deformable layer firmly attached to the base's perimeter and to a tip of the protrusion such that a majority of the deformable layer is suspended in free space between the tip and the perimeter, wherein the deformable layer is configured to flex inwardly or outwardly, and wherein the perforation provides a fluid channel to ambient fluid; and an actuator, operatively coupled to the deformable layer and configured to cause the deformable layer to flex inwardly or outwardly upon command.Type: GrantFiled: November 4, 2020Date of Patent: October 18, 2022Assignee: United States of America as represented by the Secretary of the NavyInventors: Robert Alexander Younts, Tian-Bing Xu, Laura Catherine Tolliver
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Publication number: 20220137394Abstract: A programmable, deformable incident-energy shaper comprising: a base having top and bottom surfaces with a perforation there-between; a protrusion connected to, and extending outwardly from, a center of the top surface; a deformable layer firmly attached to the base's perimeter and to a tip of the protrusion such that a majority of the deformable layer is suspended in free space between the tip and the perimeter, wherein the deformable layer is configured to flex inwardly or outwardly, and wherein the perforation provides a fluid channel to ambient fluid; and an actuator, operatively coupled to the deformable layer and configured to cause the deformable layer to flex inwardly or outwardly upon command.Type: ApplicationFiled: November 4, 2020Publication date: May 5, 2022Inventors: Robert Alexander Younts, Tian-Bing Xu, Laura Catherine Tolliver
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Publication number: 20210305488Abstract: Various embodiments include a mechanical amplification mechanism in a compact power unit of an electricity generator containing at least one piezoelectric element. The power units can be used singly but are also designed to be stacked, serially and/or in parallel with each other, and to be mounted within or under a substrate (e.g., a roadway or aircraft runway) such that the system achieves ultra-high-density of electricity production per unit area. Embodiments of the disclosed subject matter are therefore directed to a mechanical-to-electrical power generator, an accompanying power electronic-circuit, and power transmission and/or power saving into an energy-storage device. Therefore, the generated electrical power can be conditioned for, for example, transmitting to an electrical grid or for charging batteries of electrical vehicles. Other methods of formation of the power units and related systems are disclosed.Type: ApplicationFiled: July 31, 2019Publication date: September 30, 2021Inventors: Jian-Qiao Sun, Cheng Chen, Amir Sharafi, Tian-Bing Xu, Atousa Yazdani
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Patent number: 10147863Abstract: Systems, methods, and devices of the various embodiments provide pyroelectric sandwich thermal energy harvesters. In the various embodiment pyroelectric sandwich thermal energy harvesters, generated electrical energy may be stored in a super-capacitor/battery as soon as it is generated. The various embodiment pyroelectric sandwich thermal energy harvesters may harvest electrical energy from any environment where temperature variations occur. The various embodiment pyroelectric sandwich thermal energy harvesters may be power sources for space equipment and vehicles in space and/or on earth, as well as the for wireless sensor networks, such as health monitoring systems of oil pipes, aircraft, bridges, and buildings.Type: GrantFiled: October 9, 2015Date of Patent: December 4, 2018Assignee: The United States of America as represented by the Administrator of NASAInventors: Tian-Bing Xu, Jin Ho Kang, Emilie J. Siochi, Glen C. King
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Publication number: 20160104831Abstract: Systems, methods, and devices of the various embodiments provide pyroelectric sandwich thermal energy harvesters. In the various embodiment pyroelectric sandwich thermal energy harvesters, generated electrical energy may be stored in a super-capacitor/battery as soon as it is generated. The various embodiment pyroelectric sandwich thermal energy harvesters may harvest electrical energy from any environment where temperature variations occur. The various embodiment pyroelectric sandwich thermal energy harvesters may be power sources for space equipment and vehicles in space and/or on earth, as well as the for wireless sensor networks, such as health monitoring systems of oil pipes, aircraft, bridges, and buildings.Type: ApplicationFiled: October 9, 2015Publication date: April 14, 2016Inventors: Tian-Bing Xu, Jin Ho Kang, Emilie J. Siochi, Glen C. King
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Patent number: 9137883Abstract: Robust, flexible, lightweight, low profile enhanced performance dielectric barrier discharge actuators (plasma actuators) based on aerogels/nanofoams with controlled pore size and size distribution as well as pore shape. The plasma actuators offer high body force as well as high force to weight ratios (thrust density). The flexibility and mechanical robustness of the actuators allows them to be shaped to conform to the surface to which they are applied. Carbon nanotube (CNT) based electrodes serve to further decrease the weight and profile of the actuators while maintaining flexibility while insulating nano-inclusions in the matrix enable tailoring of the mechanical properties. Such actuators are required for flow control in aeronautics and moving machinery such as wind turbines, noise abatement in landing gear and rotary wing aircraft and other applications.Type: GrantFiled: May 27, 2014Date of Patent: September 15, 2015Assignees: NATIONAL INSTITUTE OF AEROSPACE ASSOCIATES, THE UNITED STATES OF AMERICA AS REPRESENTED BY THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATIONInventors: Godfrey Sauti, Tian-Bing Xu, Emilie J. Siochi, Stephen P. Wilkinson, Mary Ann B. Meador, Haiquan N. Guo
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Patent number: 9048759Abstract: Embodiments of the disclosure include an apparatus and methods for using a piezoelectric device, that includes an outer flextensional casing, a first cell and a last cell serially coupled to each other and coupled to the outer flextensional casing such that each cell having a flextensional cell structure and each cell receives an input force and provides an output force that is amplified based on the input force. The apparatus further includes a piezoelectric stack coupled to each cell such that the piezoelectric stack of each cell provides piezoelectric energy based on the output force for each cell. Further, the last cell receives an input force that is the output force from the first cell and the last cell provides an output apparatus force In addition, the piezoelectric energy harvested is based on the output apparatus force. Moreover, the apparatus provides displacement based on the output apparatus force.Type: GrantFiled: November 10, 2011Date of Patent: June 2, 2015Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Tian-Bing Xu, Emilie J. Siochi, Lei Zuo, Xiaoning Jiang, Jin Ho Kang
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Publication number: 20150076987Abstract: Robust, flexible, lightweight, low profile enhanced performance dielectric barrier discharge actuators (plasma actuators) based on aerogels/nanofoams with controlled pore size and size distribution as well as pore shape. The plasma actuators offer high body force as well as high force to weight ratios (thrust density). The flexibility and mechanical robustness of the actuators allows them to be shaped to conform to the surface to which they are applied. Carbon nanotube (CNT) based electrodes serve to further decrease the weight and profile of the actuators while maintaining flexibility while insulating nano-inclusions in the matrix enable tailoring of the mechanical properties. Such actuators are required for flow control in aeronautics and moving machinery such as wind turbines, noise abatement in landing gear and rotary wing aircraft and other applications.Type: ApplicationFiled: May 27, 2014Publication date: March 19, 2015Inventors: Godfrey SAUTI, Tian-Bing XU, Emilie J. Siochi, Stephen P. Wilkinson, Mary Ann B. Meador, Haiquan N. Guo
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Patent number: 8680749Abstract: A novel full piezoelectric multilayer stacked hybrid actuation/transduction system. The system demonstrates significantly-enhanced electromechanical performance by utilizing the cooperative contributions of the electromechanical responses of multilayer stacked negative and positive strain components. Both experimental and theoretical studies indicate that for this system, the displacement is over three times that of a same-sized conventional flextensional actuator/transducer. The system consists of at least 2 layers which include electromechanically active components. The layers are arranged such that when electric power is applied, one layer contracts in a transverse direction while the second layer expands in a transverse direction which is perpendicular to the transverse direction of the first layer. An alternate embodiment includes a third layer.Type: GrantFiled: September 3, 2009Date of Patent: March 25, 2014Assignees: National Institute of Aerospace Associates, The United States of America as represented by the Administration of NASAInventors: Tian-Bing Xu, Xiaoning Jiang, Ji Su
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Patent number: 8662412Abstract: The advanced modified high performance synthetic jet actuator with optimized curvature shape chamber (ASJA-M) is a synthetic jet actuator (SJA) with a lower volume reservoir or chamber. A curved chamber is used, instead of the conventional cylinder chamber, to reduce the dead volume of the jet chamber and increase the efficiency of the synthetic jet actuator. The shape of the curvature corresponds to the maximum displacement (deformation) profile of the electroactive diaphragm. The jet velocity and mass flow rate for the ASJA-M will be several times higher than conventional piezoelectric actuators.Type: GrantFiled: January 16, 2009Date of Patent: March 4, 2014Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Tian-Bing Xu, Ji Su, Xiaoning Jiang
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Patent number: 8235309Abstract: The present invention comprises a high performance, horizontal, zero-net mass-flux, synthetic jet actuator for active control of viscous, separated flow on subsonic and supersonic vehicles. The present invention is a horizontal piezoelectric hybrid zero-net mass-flux actuator, in which all the walls of the chamber are electrically controlled synergistically to reduce or enlarge the volume of the synthetic jet actuator chamber in three dimensions simultaneously and to reduce or enlarge the diameter of orifice of the synthetic jet actuator simultaneously with the reduction or enlargement of the volume of the chamber. The present invention is capable of installation in the wing surface as well as embedding in the wetted surfaces of a supersonic inlet. The jet velocity and mass flow rate for the SJA-H will be several times higher than conventional piezoelectric actuators.Type: GrantFiled: January 18, 2009Date of Patent: August 7, 2012Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Tian-Bing Xu, Xiaoning Jiang, Ji Su
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Publication number: 20120119620Abstract: Embodiments of the disclosure include an apparatus and methods for using a piezoelectric device, that includes an outer flextensional casing, a first cell and a last cell serially coupled to each other and coupled to the outer flextensional casing such that each cell having a flextensional cell structure and each cell receives an input force and provides an output force that is amplified based on the input force. The apparatus further includes a piezoelectric stack coupled to each cell such that the piezoelectric stack of each cell provides piezoelectric energy based on the output force for each cell. Further, the last cell receives an input force that is the output force from the first cell and the last cell provides an output apparatus force In addition, the piezoelectric energy harvested is based on the output apparatus force. Moreover, the apparatus provides displacement based on the output apparatus force.Type: ApplicationFiled: November 10, 2011Publication date: May 17, 2012Applicants: Space AdministrationInventors: Tian-Bing XU, Emilie J. SIOCHI, Lei ZUO, Xiaoning JIANG, Jin Ho KANG
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Patent number: 8052069Abstract: The present invention comprises a high performance, vertical, zero-net mass-flux, synthetic jet actuator for active control of viscous, separated flow on subsonic and supersonic vehicles. The present invention is a vertical piezoelectric hybrid zero-net mass-flux actuator, in which all the walls of the chamber are electrically controlled synergistically to reduce or enlarge the volume of the synthetic jet actuator chamber in three dimensions simultaneously and to reduce or enlarge the diameter of orifice of the synthetic jet actuator simultaneously with the reduction or enlargement of the volume of the chamber. The jet velocity and mass flow rate for the present invention will be several times higher than conventional piezoelectric synthetic jet actuators.Type: GrantFiled: February 26, 2009Date of Patent: November 8, 2011Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Tian-Bing Xu, Xiaoning Jiang, Ji Su
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Publication number: 20100096949Abstract: A novel full piezoelectric multilayer stacked hybrid actuation/transduction system. The system demonstrates significantly-enhanced electromechanical performance by utilizing the cooperative contributions of the electromechanical responses of multilayer stacked negative and positive strain components. Both experimental and theoretical studies indicate that for this system, the displacement is over three times that of a same-sized conventional flextensional actuator/transducer. The system consists of at least 2 layers which include electromechanically active components. The layers are arranged such that when electric power is applied, one layer contracts in a transverse direction while the second layer expands in a transverse direction which is perpendicular to the transverse direction of the first layer. An alternate embodiment includes a third layer.Type: ApplicationFiled: September 3, 2009Publication date: April 22, 2010Applicants: National Institute of Aerospace Associates, Space AdministrationInventors: Tian-Bing Xu, Xiaoning Jing, Ji Su
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Publication number: 20100044459Abstract: The present invention comprises a high performance, vertical, zero-net mass-flux, synthetic jet actuator for active control of viscous, separated flow on subsonic and supersonic vehicles. The present invention is a vertical piezoelectric hybrid zero-net mass-flux actuator, in which all the walls of the chamber are electrically controlled synergistically to reduce or enlarge the volume of the synthetic jet actuator chamber in three dimensions simultaneously and to reduce or enlarge the diameter of orifice of the synthetic jet actuator simultaneously with the reduction or enlargement of the volume of the chamber. The jet velocity and mass flow rate for the present invention will be several times higher than conventional piezoelectric synthetic jet actuators.Type: ApplicationFiled: February 26, 2009Publication date: February 25, 2010Applicants: Space AdministrationInventors: Tian-Bing Xu, Xiaoning Jiang, Ji Su
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Publication number: 20100043900Abstract: The advanced modified high performance synthetic jet actuator with optimized curvature shape chamber (ASJA-M) is a synthetic jet actuator (SJA) with a lower volume reservoir or chamber. A curved chamber is used, instead of the conventional cylinder chamber, to reduce the dead volume of the jet chamber and increase the efficiency of the synthetic jet actuator. The shape of the curvature corresponds to the maximum displacement (deformation) profile of the electroactive diaphragm. The jet velocity and mass flow rate for the ASJA-M will be several times higher than conventional piezoelectric actuators.Type: ApplicationFiled: January 16, 2009Publication date: February 25, 2010Applicant: USA as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Tian-Bing Xu, Ji Su, Xiaoning Jiang
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Publication number: 20100045752Abstract: The present invention comprises a high performance, horizontal, zero-net mass-flux, synthetic jet actuator for active control of viscous, separated flow on subsonic and supersonic vehicles. The present invention is a horizontal piezoelectric hybrid zero-net mass-flux actuator, in which all the walls of the chamber are electrically controlled synergistically to reduce or enlarge the volume of the synthetic jet actuator chamber in three dimensions simultaneously and to reduce or enlarge the diameter of orifice of the synthetic jet actuator simultaneously with the reduction or enlargement of the volume of the chamber. The present invention is capable of installation in the wing surface as well as embedding in the wetted surfaces of a supersonic inlet. The jet velocity and mass flow rate for the SJA-H will be several times higher than conventional piezoelectric actuators.Type: ApplicationFiled: January 18, 2009Publication date: February 25, 2010Applicants: Space AdministrationInventors: Tian-Bing Xu, Xiaoning Jiang, Ji Su