Patents by Inventor Hua Zhang

Hua Zhang 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).

  • Publication number: 20180175700
    Abstract: The present application provides a doubly-fed induction generator system for a multi-shaft gas turbine engine. The doubly-fed induction generator system may include a first doubly-fed induction generator in communication with a first shaft of the multi-shaft gas turbine engine, a first rotor of the first doubly-fed induction generator in communication with a converter via a first rotor bus, and a first breaker on the first rotor bus. The first doubly-fed induction generator acts as a generator or a motor depending in part upon the position of the first breaker.
    Type: Application
    Filed: December 16, 2016
    Publication date: June 21, 2018
    Inventors: Hua Zhang, Fabien Thibault Codron, Gunnar Leif Siden, Frank Douglas Beadie
  • Publication number: 20180169177
    Abstract: A polypeptide is provided specifically binding to CD34 molecule and use thereof, the polypeptide is selected from at least one of polypeptide 17 and polypeptide 19, amino acid sequences of the polypeptide 17 and the polypeptide 19 are as shown in SEQ ID NO: 1 and SEQ ID NO: 2 in sequence listing. The polypeptide provided by the present application can specifically bind to CD34, and can be produced by artificial synthesis or genetic engineering method. Compared with antibody, the polypeptide provided by the present invention has characteristics such as low molecular weight, easy preparation and less immunological rejection; and it has little toxic side-effects, its binding to the CD34+ cell won't obviously kill the target cell and inhibit its proliferation. The polypeptide provided by the present invention can be used as markers for CD34 positive expression cells, and also can be used as substitute of immunofluorescence CD34 antibody.
    Type: Application
    Filed: September 22, 2015
    Publication date: June 21, 2018
    Inventors: HUA WANG, LONG ZHAO, HAIXIA ZHANG, YAN ZHANG
  • Publication number: 20180171328
    Abstract: Compositions and methods are provided for enzymes with altered properties that involve a systematic approach to mutagenesis and a screening assay that permits selection of the desired proteins. Embodiments of the method are particularly suited for modifying specific properties of restriction endonucleases such as star activity. The compositions includes restriction endonucleases with reduced star activity as defined by an overall fidelity index improvement factor.
    Type: Application
    Filed: January 29, 2018
    Publication date: June 21, 2018
    Applicant: New England Biolabs, Inc.
    Inventors: Zhenyu Zhu, Aine Quimby, Shuang-Yong Xu, Shengxi Guan, Hua Wei, Penghua Zhang, Dapeng Sun, Siu-hong Chan
  • Publication number: 20180168112
    Abstract: The present disclosure relates to a plant purification device and control method thereof. A plant purification device includes a plant purification unit and a physicochemical purification unit with adjustable use efficiency, wherein, the physicochemical purification unit is communicated with the plant purification unit; the plant purification device further includes a control module, a contaminant concentration sensor for detecting concentration of indoor contaminants, an air speed detector for detecting air speed of gas entering the plant purification unit, and a fan for driving gas to be supplied into the plant purification unit from the physicochemical purification unit, wherein, the control module is used to adjust the use efficiency of the physicochemical purification unit according to the concentration of indoor contaminants, adjust rotating speed of the fan according to a detection signal of the air speed detector, and further control the air speed of the gas entering the plant purification unit.
    Type: Application
    Filed: December 14, 2017
    Publication date: June 21, 2018
    Inventors: Hua Yang, Yuxiang Zhang, Qingjun Liu, Jingming Qu
  • Patent number: 10003239
    Abstract: The present application provides a doubly-fed induction generator system for a multi-shaft gas turbine engine. The doubly-fed induction generator system may include a first doubly-fed induction generator in communication with a first shaft of the multi-shaft gas turbine engine, a first rotor of the first doubly-fed induction generator in communication with a converter via a first rotor bus, and a first breaker on the first rotor bus. The first doubly-fed induction generator acts as a generator or a motor depending in part upon the position of the first breaker.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 19, 2018
    Assignee: General Electric Company
    Inventors: Hua Zhang, Fabien Thibault Codron, Gunnar Leif Siden, Frank Douglas Beadie
  • Publication number: 20180167247
    Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).
    Type: Application
    Filed: February 8, 2018
    Publication date: June 14, 2018
    Inventors: Jianglei Ma, Ming Jia, Wen Tong, Peiying Zhu, Hang Zhang, Hua Xu, Dongsheng Yu
  • Publication number: 20180163639
    Abstract: A system and a method for predicting and optimizing remaining hardware life of gas turbine components. Operating parameters of the gas turbine which may impact remaining hardware life are sensed and tracked using a plurality of sensors in communication with a control system including a computing device. Remaining hardware life is predicted using a physics-based hardware lifing model. The hardware lifing model may include an output of a filtration model configured to monitor contaminants based on a pressure drop across a filter. Optimizing the remaining hardware life is achieved by the control system adjusting one or more operation settings of the gas turbine.
    Type: Application
    Filed: December 14, 2016
    Publication date: June 14, 2018
    Inventors: Yimin Huang, Hua Zhang, Timothy Andrew Healy, Iris Z. Hu
  • Patent number: 9995086
    Abstract: A center-pillared full-face shaft drilling machine comprises a center pillar (1), device platforms (2), a derrick (3), a driving system (4), a personnel and material conveying system (5), a well wall support and protection system (6), a safeguard system (7), and an operation chamber (8). The derrick (3) is mounted at a wellhead. The operation chamber (8) is disposed on the derrick (3). The center pillar directly leads from the well bottom to the wellhead and is connected to a slide rack comprised in the derrick on the ground. The driving system (4) is mounted at the front end of the center pillar (1) of a device. The multiple device platforms (2) are sequentially mounted on the center pillar (1) of the device from rear to front. The personnel and material conveying system (5) and the safeguard system (7) are separately mounted on the device platforms at the rear of the driving system (4) and on the ground.
    Type: Grant
    Filed: December 9, 2014
    Date of Patent: June 12, 2018
    Inventors: Hua Zhao, Jianbin Li, Kleuters Nikolaus, Ningchuan Zhang, Wei Xiao, Xingjian Zhuo, Dujuan Wang, Lianhui Jia, Yanping Dong, Qian Zhou
  • Patent number: 9994689
    Abstract: The present disclosure relates to a method for preparing high-performance melamine foam, comprising the following steps: preparing a primary polymer of waterborne melamine formaldehyde resin; uniformly mixing the primary polymer of the waterborne melamine formaldehyde resin, the polar solvent, the surfactant and the additive to obtain a mixture A; uniformly mixing the mixture A with the solid methylol melamine to obtain a mixture B; uniformly mixing the mixture B with the foaming agent to obtain a mixture C; uniformly mixing the mixture C with the curing agent to obtain a mixture D; and carrying out microwave radiation, foaming, curing, drying and quenching on the mixture D in a microwave foaming device to obtain the high-density melamine foam. The melamine foam described in the present invention has high density and high strength performance.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: June 12, 2018
    Inventors: Rui Ye, Lu Zhang, Hang Gou, Hua Su, Hao Fu
  • Publication number: 20180156227
    Abstract: Systems and methods include actuation system of turbomachinery that include an actuator configured to control pitch of vanes of the turbomachinery and a positioner configured to position the actuator to control the pitch. The actuation system also includes a controller system communicably coupled to the positioner. The controller system is configured to drive the positioner based at least in part on a set point of the turbomachinery and obtain data from the positioner indicating an amount of force used for a target pitch. Using the data, the controlling system derives an operating condition for the turbomachinery and controls the turbomachinery based at least in part on the operating condition of the turbomachinery.
    Type: Application
    Filed: December 6, 2016
    Publication date: June 7, 2018
    Inventors: Seth Harmon Chapman, Hua Zhang
  • Patent number: 9988505
    Abstract: A polyethylene composition comprising an ethylene/?-olefin copolymerized linear low density polyethylene, wherein the polyethylene composition has a Mw of from 100,000 g/mol to 200,000 g/mol, a Mw/Mn of from 4.0 to 9.0, a Mz/Mw of from 4.0 to 7.0, and a Mz+1/Mw of from 4.5 to 13.5, is provided. A film formed of the polyethylene composition is also provided.
    Type: Grant
    Filed: October 27, 2015
    Date of Patent: June 5, 2018
    Assignees: China Petroleum & Chemical Corporation, Beijing Research Institute of Chemical Industry, China Petroleum and Chemical Corporation
    Inventors: Dali Gao, Hongwei Shi, Shijun Zhang, Meifang Guo, Luqiang Yu, Jinliang Qiao, Ruxian Li, Yujing Tang, Jianjun Yin, Liangshi Wang, Honghong Huang, Qingquan Yang, Hao Zou, Jie Li, Liying Zhang, Hua Yin, Jianye Liu, Jingbo Shao, Mingfu Lyu, Liqiu Chu, Meng Xu, Hui Quan, Kai Xu, Mu Dong, Yun Lyu, Yihui Xu, Yaohui Xu, Peng Guo, Yiqing Bai
  • Publication number: 20180151571
    Abstract: The present invention provides a layout of a semiconductor transistor device including a first and a second active area, a first and a second gate, and a metal line. The first active and the second active area are extended along a first direction. The first gate and the second gate are extended along a second direction and crossed the first active area, to define two transistors. The two transistors are electrically connected with each other through a conductive layer. The metal line is disposed on the conductive layer and is electrically connected the two transistors respectively.
    Type: Application
    Filed: November 27, 2016
    Publication date: May 31, 2018
    Inventors: ZHIBIAO ZHOU, Ding-Lung Chen, Xing Hua Zhang, Shan Liu, RUNSHUN WANG, Chien-Fu Chen, Wei-Jen Wang, Chen-Hsien Hsu
  • Publication number: 20180147206
    Abstract: The present disclosure provides for new methods of treating Alzheimer's Disease. In particular, it concerns the activation of neuronal store-operated calcium entry pathway in Alzheimer's Disease patients.
    Type: Application
    Filed: May 4, 2016
    Publication date: May 31, 2018
    Applicant: The Board of Regents of the University of Texas System
    Inventors: Ilya BEZPROZVANNY, Hua ZHANG
  • Publication number: 20180145620
    Abstract: Exciter circuitry includes a controller that receives a first signal requesting that a generator coupled to the exciter circuitry stop providing real power to an electrical grid. The controller also sends a second signal to a turbine control system of a turbine coupled to the generator to close at least one fuel nozzle, at least one inlet guide vane, or at least one variable stator vane in response to receiving the first signal. The controller further instructs the exciter circuitry to provide direct current (DC) voltage and DC current to a rotor of the generator, wherein the DC voltage and the DC current causes the generator to operate synchronously with the electrical grid.
    Type: Application
    Filed: November 21, 2016
    Publication date: May 24, 2018
    Inventors: Hua Zhang, Wei Ning
  • Publication number: 20180142689
    Abstract: Disclosed is an oil separation barrel, which includes a barrel body and an oil separation and filtration structure provided in the barrel body, the barrel body provided with an oil separation cavity and an output port. An output gas flow is filtered by the oil separation and filtration structure, then enters the oil separation cavity, and finally is output from the output port. At least part of a barrel wall of the barrel body forming the oil separation cavity includes two or more layers of circumferential walls. The output gas flow flows in the oil separation cavity in such a manner that it changes the advance direction multiple times, which can make the flow field uniform and reduce noise and vibration; and the output gas flow impacts the circumferential wall surfaces in the oil separation barrel multiple times, which can further improve the efficiency of oil separation.
    Type: Application
    Filed: July 6, 2016
    Publication date: May 24, 2018
    Inventors: Wenqing Chen, Tianyi Zhang, Rihua Li, Hua Liu, Qiaoming Yang, Shuru Lin, Yushi Bi, Yanhai Peng, Kang Xu, Ziwen Xing
  • Patent number: 9979134
    Abstract: An electrical connector includes an insulating housing, contacts, a shielding plate disposed in the housing and a metallic shell. The housing includes a base and a mating tongue, the base includes a retaining portion and a supporting portion extending downwards beyond the retaining portion. The contacts have contacting portions exposing to the mating surface and legs extending downwards from the supporting portion. The shielding plate defines a pair of side latches thereof. The metallic shell is retained on the retaining portion of the base and surrounds the mating tongue to define a mating cavity between the shell and the mating tongue. The connector further includes a front shielding member covering a front face of the supporting portion and a rear shielding member covering on a rear face of the supporting portion for shielding the legs of the contacts in a front and rear direction.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: May 22, 2018
    Assignee: FOXCONN INTERCONNECT TECHNOLOGY LIMITED
    Inventors: Chun-Ming Yu, Juan Du, Guo-Hua Zhang
  • Patent number: 9978596
    Abstract: The present disclosure provides forming nanostructures with precision dimension control and minimum lithographic related errors for features with dimension under 14 nanometers and beyond. A self-aligned multiple spacer patterning (SAMSP) process is provided herein and the process utilizes minimum lithographic exposure process, but rather multiple deposition/etching process to incrementally reduce feature sizes formed in the mask along the manufacturing process, until a desired extreme small dimension nanostructures are formed in a mask layer.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: May 22, 2018
    Assignee: Applied Materials, Inc.
    Inventors: Ying Zhang, Uday Mitra, Praburam Gopalraja, Srinivas D. Nemani, Hua Chung
  • Publication number: 20180138881
    Abstract: A power amplifier output power control circuit includes a first operational amplifier with a negative input terminal configured to receive a power control signal; a first PMOS transistor with a grid electrode connected to an output terminal of the first operational amplifier, a source electrode connected to an external power source, and a drain electrode grounded via a voltage dividing network; a power amplifier with a power end connected to the drain electrode of the first PMOS transistor, an input terminal configured to access to a signal to be amplified, and an output terminal configured to amplify the signal; and a current sampling circuit configured to produce sampling current after sampling current across the first PMOS transistor and providing a negative feedback signal for the positive input terminal of the first operational amplifier according to the sampling current such that total output power of the power amplifier keeps unchanged.
    Type: Application
    Filed: December 25, 2017
    Publication date: May 17, 2018
    Applicant: LANSUS TECHNOLOGIES INC.
    Inventors: Hua LONG, Liyang ZHANG, Zhenjuan CHENG, Dongjie TANG, Qian ZHAO
  • Publication number: 20180135631
    Abstract: A screw compressor and a compressor body thereof, in which the compressor body includes a housing provided with a suction inlet and a discharge end face, the housing is internally provided with a rotor chamber and a spool chamber, the housing is provided with a cooling chamber around the rotor chamber, the cooling chamber communicates with the suction inlet, and the cooling chamber is provided with an air inlet communicating with the rotor chamber.
    Type: Application
    Filed: May 17, 2016
    Publication date: May 17, 2018
    Inventors: Qiaoming Yang, Rihua Li, Tianyi Zhang, Hua Liu, Yushi Bi, Yanhai Peng, Shuru Lin, Kang Xu, Bin Ma, Qiangjun Meng, Zhaorui Zhao, Wenqing Chen, Ziwen Xing
  • Publication number: 20180138880
    Abstract: A power amplifier gain attenuation circuit includes: a gain attenuation (reduction) circuit configured to receive an input signal, an external drive signal and a bias voltage, and output a secondary input signal after attenuating the input signal depending on the drive signal and bias voltage; an amplifier including: a bias input terminal configured to receive a bias voltage; a signal input terminal configured to receive a secondary input signal, and an output terminal configured to output a gained output signal. The power amplifier gain attenuation circuit can reduce a gain effectively, and the amount of phase jump caused by the attenuation is quite small.
    Type: Application
    Filed: December 24, 2017
    Publication date: May 17, 2018
    Applicant: LANSUS TECHNOLOGIES INC.
    Inventors: Hua LONG, Liyang ZHANG, Zhenjuan CHENG, Dongjie TANG, Qian ZHAO