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公开(公告)号:US11975824B2
公开(公告)日:2024-05-07
申请号:US17236945
申请日:2021-04-21
Applicant: California Institute of Technology , TooFon, Inc.
Inventor: Morteza Gharib , Michael V. Ol , Christopher J. Dougherty
CPC classification number: B64C27/08 , B64C27/22 , B64C27/82 , B64C39/024 , B64U10/13
Abstract: A system and method for controlling a multi-rotor aircraft that implements the unconventional use of an odd number of rotors. The odd or auxiliary rotor is designed to be smaller in diameter than the remaining main rotors and accordingly generates a smaller unbalanced torque and pitch on the aircraft. Additional configurations implement the use of smaller thrust rotors that can be used to generate thrust as well as control yaw and thus counteract any remaining unbalanced torque from the odd auxiliary rotor.
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公开(公告)号:US11731759B2
公开(公告)日:2023-08-22
申请号:US17648381
申请日:2022-01-19
Applicant: California Institute of Technology , TooFon, Inc.
Inventor: Michael V. Ol , Morteza Gharib , Amir Emadi
CPC classification number: B64C27/82 , B64C27/32 , B64C2027/8227
Abstract: A system and method for controlling a multi-rotor aircraft that implements the unconventional use of different sized rotors. The different sized rotors than the main rotors tend to generate an unbalanced torque and pitch on the aircraft that effectively decouples the pitch and yaw control from the main rotors. The atypical design tends to lend itself to improved control capabilities and simplified control systems. Additional configurations implement the use of smaller thrust rotors that can be used to generate thrust as well as control yaw and thus counteract any remaining unbalanced torque from the odd auxiliary rotor.
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公开(公告)号:US11407493B2
公开(公告)日:2022-08-09
申请号:US17464499
申请日:2021-09-01
Applicant: California Institute of Technology
Inventor: Morteza Gharib
Abstract: A system and method for improving the flight control and efficiency of an aerial vehicle. Many embodiments are directed to a rotor-shroud assembly system where a plurality of rotor blades are connected to the internal side of a shroud and are set up to pivot through the use of a pitching mechanism. The entire assembly is configured to rotate when attached to a motor.
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公开(公告)号:US20220185464A1
公开(公告)日:2022-06-16
申请号:US17236945
申请日:2021-04-21
Applicant: California Institute of Technology , TooFon, Inc.
Inventor: Morteza Gharib , Reza Nemovi , Michael V. Ol , Christopher J. Dougherty
Abstract: A system and method for controlling a multi-rotor aircraft that implements the unconventional use of an odd number of rotors. The odd or auxiliary rotor is designed to be smaller in diameter than the remaining main rotors and accordingly generates a smaller unbalanced torque and pitch on the aircraft. Additional configurations implement the use of smaller thrust rotors that can be used to generate thrust as well as control yaw and thus counteract any remaining unbalanced torque from the odd auxiliary rotor.
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公开(公告)号:US20210278330A1
公开(公告)日:2021-09-09
申请号:US17195228
申请日:2021-03-08
Applicant: California Institute of Technology
Inventor: Morteza Gharib , Emile K. Oshima , Pablo Hermoso Moreno
Abstract: A system and method for estimating the shear wall stress of an aerodynamic surface using a tuft visualization technique combined with a physics-informed neural network. The tuft visualization technique is a simplified method of generating velocity profile data of an aerodynamic model that can subsequently be used to generate a shear wall stress profile of the model. Systems and methods described herein also provide for additional input data using an augmented tuft and taps inputs for the physics-informed neural network to generate the shear wall stress profile.
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公开(公告)号:US11081691B2
公开(公告)日:2021-08-03
申请号:US16915553
申请日:2020-06-29
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor: Adrianus I. Aria , Morteza Gharib
IPC: H01M10/0525 , H01M4/36 , H01M4/38 , H01M10/058 , H01M4/13 , H01M4/62 , B82Y40/00 , H01M4/02 , B82Y30/00
Abstract: Provided herein are electrochemical systems and related methods of making and using electrochemical systems. Electrochemical systems of the invention implement novel cell geometries and composite carbon nanomaterials based design strategies useful for achieving enhanced electrical power source performance, particularly high specific energies, useful discharge rate capabilities and good cycle life. Electrochemical systems of the invention are versatile and include secondary lithium ion cells, useful for a range of important applications including use in portable electronic devices.
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公开(公告)号:US10946148B2
公开(公告)日:2021-03-16
申请号:US16134136
申请日:2018-09-18
Applicant: California Institute of Technology
Inventor: Morteza Gharib , Daegyoum Kim
Abstract: A method and apparatus that enables the production of micron-scale free-standing bubbles made of liquids containing surfactants are provided. The method and apparatus of the invention overcomes the limitations of conventional bubble forming techniques by using a controlled cavitation process in a liquid media.
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公开(公告)号:US20200315851A1
公开(公告)日:2020-10-08
申请号:US16839333
申请日:2020-04-03
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor: Morteza Gharib , Jinglin Huang
Abstract: Disclosed are example embodiments of methods and systems for inducing drug to thoroughly mix in a patient's vitreous humor. One of the systems includes: a heat transfer pad that transfer heat to or from the eyeball; and a control module electronically coupled to the heat transfer pad for controlling one or more heat transfer elements disposed thereon.
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公开(公告)号:US10787231B2
公开(公告)日:2020-09-29
申请号:US15663595
申请日:2017-07-28
Applicant: California Institute of Technology
Inventor: Cong Wang , David Jeon , Morgane Grivel , Francisco Pereira , Morteza Gharib
Abstract: Systems, methods and apparatuses are provided for the reduction of hydrodynamic frictional drag. These systems, methods and apparatuses can include a vessel surface having an external layer and a plurality of dimples, wherein the external layer comprises a hydrophilic material, and wherein each of the dimples includes an inner surface having a superhydrophobic coating. The dimples can be configured to maintain an air-water interface as one or more fluids flow over the vessel surface. In some embodiments, a pressure reservoir can be coupled with the dimples, and can include an acoustic speaker to vibrate the air-water interface.
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公开(公告)号:US10734639B2
公开(公告)日:2020-08-04
申请号:US14322139
申请日:2014-07-02
Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
Inventor: Adrianus I. Aria , Morteza Gharib
IPC: H01M10/0525 , H01M4/134 , H01M4/70 , H01M4/78 , H01M4/36 , H01M4/38 , H01M10/058 , H01M4/13 , H01M4/62 , B82Y40/00 , H01M4/02 , B82Y30/00
Abstract: Provided herein are electrochemical systems and related methods of making and using electrochemical systems. Electrochemical systems of the invention implement novel cell geometries and composite carbon nanomaterials based design strategies useful for achieving enhanced electrical power source performance, particularly high specific energies, useful discharge rate capabilities and good cycle life. Electrochemical systems of the invention are versatile and include secondary lithium ion cells, such as silicon-sulfur lithium ion batteries, useful for a range of important applications including use in portable electronic devices. Electrochemical cells of the present invention also exhibit enhanced safety and stability relative to conventional state of the art lithium ion secondary batteries by using prelithiated active materials to eliminate the use of metallic lithium and incorporating carbon nanotube and/or graphene, composite electrode structures to manage residual stress and mechanical strain arising from expansion and contraction of active materials during charge and discharge.
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