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Longzhi Etal Jiang

from Red Hook, NY
Age ~62
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Also known as:
Longzhi Jzang, Sang J Longzhi, Jiang Longzhi
Related to:
Christine JiangL R KathleenWei W Jiang, 48Yufei Jiang, 60
Connected to:
Abby H Jiang, 51Audrey W Jiang, 32Baofeng F Jiang, 57Barbara F Jiang, 33Bingyan Jiang, 61Bo Jiang, 76Boni Jiang, 49Catherine C Jiang, 62Chenqian Jiang, 39Chongjun Jiang, 56

Longzhi Jiang Phones & Addresses

  • Red Hook, NY
  • 2814 Constitution Dr, Florence, SC 29501 (843) 662-6403
  • West Lafayette, IN
  • Potsdam, NY
  • W Lafayette, IN

Work

Company: Ge healthcare Feb 1998 Position: Principal engineer

Education

Degree: PhD School / High School: Purdue University 1995 to 1998 Specialities: Structural and materials

Skills

Engineering • Mechanical Engineering • Product Development • Medical Devices • R&D • Engineering Management • Six Sigma • Finite Element Analysis • Manufacturing • Biomedical Engineering • Simulations • Fmea • Systems Engineering • Testing • Medical Imaging • Cross Functional Team Leadership • Project Management • Dmaic • Quality System • Continuous Improvement • Matlab • Lean Manufacturing • Design For Manufacturing • Design of Experiments • Failure Mode and Effects Analysis • Materials Science • Thermal • Research and Development

Languages

Mandarin • English

Ranks

Certificate: Dfss Green Belt

Industries

Medical Devices

Resumes

Resumes

Longzhi Jiang Photo 1

Engineering Manager

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Location:
2814 Constitution Dr, Florence, SC 29501
Industry:
Medical Devices
Work:
GE Healthcare since Feb 1998
Principal Engineer
Education:
Purdue University 1995 - 1998
PhD, Structural and materials Clarkson University 1992 - 1995
Master's, Civil engineering Hefei University of Technology 1983 - 1986
Master's, Civil engineering Hefei University of Technology 1979 - 1983
BA, Civil engineering
Skills:
Engineering
Mechanical Engineering
Product Development
Medical Devices
R&D
Engineering Management
Six Sigma
Finite Element Analysis
Manufacturing
Biomedical Engineering
Simulations
Fmea
Systems Engineering
Testing
Medical Imaging
Cross Functional Team Leadership
Project Management
Dmaic
Quality System
Continuous Improvement
Matlab
Lean Manufacturing
Design For Manufacturing
Design of Experiments
Failure Mode and Effects Analysis
Materials Science
Thermal
Research and Development
Languages:
Mandarin
English
Certifications:
Dfss Green Belt

Publications

Us Patents

Mri Magnet Vibration Induced Field Instability Simulator

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US Patent:
6822446, Nov 23, 2004
Filed:
Sep 12, 2002
Appl. No.:
10/065037
Inventors:
Timothy J. Havens - Florence SC
Longzhi Jiang - Florence SC
Gregory A. Lehmann - Florence SC
Assignee:
GE Medical Systems Global Technology Company, LLC - Waukesha WI
International Classification:
G01V 300
US Classification:
324309, 324318, 324322
Abstract:
A Magnetic Resonance Imaging (MRI) magnet field instability simulator ( ) is provided. The simulator includes a rigid body motion generator ( ) that simulates motion of one or more MRI system components. An eddy current analyzer ( ) generates a magnetic stiffness and damping signal and an electromagnetic transfer function in response to the motions and a cryostat material properties signal. A mechanical model generator ( ) generates a mechanical disturbance signal and a mechanical model of one or more MRI system components in response to the motions and the magnetic stiffness and damping signal. A structural analyzer ( ) generates a motion signal in response to the mechanical model. A field instability calculator ( ) generates a field instability signal in response to the electromagnetic transfer function and the motion signal. A method of performing the same is also provided.

Superconductive Magnet Including A Cryocooler Coldhead

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US Patent:
7170377, Jan 30, 2007
Filed:
Jul 28, 2004
Appl. No.:
10/710682
Inventors:
Longzhi Jiang - Florence SC, US
Gregory Alan Lehmann - Florence SC, US
Edwin Lawrence Legall - Florence SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F25B 19/00
H01F 5/00
US Classification:
335216, 335300, 324318, 62 511
Abstract:
A zero boiloff cryogen cooled recondensing superconducting magnet assembly including superconducting magnet coils suitable for magnetic resonance imaging including a cryogen pressure vessel to contain a liquid cryogen reservoir to provide cryogenic temperatures to the magnet coils for superconducting operation; a vacuum vessel surrounding the pressure vessel and spaced therefrom; a first thermal shield surrounding and spaced from the pressure vessel; a second thermal shield surrounding and spaced from the first thermal shield and intermediate the vacuum vessel and the first shield; a cryocooler thermally connected by a first and a second thermal interface to the first and second thermal shields, respectively; a recondenser positioned in the space between the pressure vessel and the first thermal shield and thermally connected by a thermal interface to the cryocooler to recondense, back to liquid, cryogen gas provided from the pressure vessel; and means for returning the recondensed liquid cryogen the pressure vessel; wherein the second thermal shield surrounding the first thermal shield reduces a radiation heat load from the first thermal shield to the pressure vessel lowering boiloff of cryogen gas under conditions of failure or power off of the cryocooler.

Methods And Apparatus For Mri Shims

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US Patent:
7271591, Sep 18, 2007
Filed:
Mar 15, 2006
Appl. No.:
11/376506
Inventors:
Edwin Lawrence Legall - Menomonee Falls WI, US
Longzhi Jiang - Florence SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01V 3/00
US Classification:
324320, 324309
Abstract:
A method includes heating a MRI shim with a heater to reduce a temperature rise per unit of time during a gradient operation of a MRI system.

Thermal Shield To Coldhead Sleeve Thermal Contact

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US Patent:
7348777, Mar 25, 2008
Filed:
Apr 5, 2004
Appl. No.:
10/708979
Inventors:
Longzhi Jiang - Florence SC, US
Gregory Alan Lehmann - Florence SC, US
Clifford Joseph Ginfrida - Florence SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01V 3/00
US Classification:
324318
Abstract:
A magnetic resonance imaging magnet assembly is provided. The assembly comprises a outer thermal shield having an operational temperature. The assembly further includes a cold sleeve assembly comprising a plurality of braid elements mounted to a cooler block and a highly thermally conductive block mounted between the cooler block and the outer thermal shield. The highly thermally conductive block is welded to the outer thermal shield and is welded to the cooler block. The highly thermally conductive block has greater thermal conductance than the outer thermal shield.

Apparatus And Method For Controlling A Cryocooler By Adjusting Cooler Gas Flow Oscillating Frequency

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US Patent:
7412835, Aug 19, 2008
Filed:
Jun 27, 2005
Appl. No.:
11/167850
Inventors:
Edwin L. Legall - Menomonee Falls WI, US
Longzhi Jiang - Florence SC, US
Roy A. Mangano - Florence SC, US
Mark Derakhshan - Brookfield WI, US
International Classification:
F25D 9/00
F25B 1/00
F25B 49/00
US Classification:
62 6, 622281
Abstract:
Systems and methods are provided for a variable cooling capacity cryocooler for a superconducting magnetic resonance imaging device having a liquid cryogen pressure vessel to provide cryogenic temperatures to a magnet assembly, a vacuum vessel surrounding the pressure vessel and a radiation shield spaced from the cryogen pressure vessel, and a pressure sensor positioned inside the cryogen pressure vessel pressure boundary for sensing pressure variations. A controller for varying the heat removal rate of the cryocooler based on the pressure variations in the cryogen pressure vessel and where the cooling capacity of the cryocooler is adjusted by modifying the speed of the electric power drive (DC or AC motors) or by changing the mechanical transmission ratio between the constant speed electric power drive and the cryocooler displacer/piston to adjust the cooler oscillating frequency of the gas flow. The invention can be adapted to magnets or non magnets systems using Stirling, Gifford-McMahon (“GM”) and Pulse Tube (“PT”) cooler systems. The system will extend component end of life and provide a controllable constant pressure improving image quality for superconducting MRI magnets.

Apparatus For Supporting And Method For Forming A Support For A Magnetic Resonance Imaging (Mri) Magnet

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US Patent:
7924010, Apr 12, 2011
Filed:
Mar 25, 2009
Appl. No.:
12/410959
Inventors:
Longzhi Jiang - Florence SC, US
John Scaturro, Jr. - Florence SC, US
Clifford Ginfrida, Jr. - Florence SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01V 3/00
US Classification:
324318, 324322
Abstract:
An apparatus and method for supporting a magnetic resonance imaging magnet are provided. The apparatus includes a magnet coil support structure having a main former body with a plurality of channels and an end flange at each end of the main former body. The end flanges are reinforced with a strengthening material at least at corner regions of the end flanges.

Apparatus And Method To Improve Magnet Stability In An Mri System

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US Patent:
8314615, Nov 20, 2012
Filed:
Dec 22, 2009
Appl. No.:
12/644047
Inventors:
Longzhi Jiang - Florence SC, US
John Scaturro, Jr. - Florence SC, US
William Einziger - Florence SC, US
Yuri Lvovsky - Florence SC, US
Robbi McDonald - Florence SC, US
Xiaoxue Diao - Florence SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01V 3/00
US Classification:
324307
Abstract:
An MRI apparatus and method comprises an MRI system having a plurality of gradient coils positioned about a bore of a magnet, and an RF transceiver system and an RF switch controlled by a pulse module to transmit RF signals to an RF coil assembly to acquire MR images. The magnet comprises a main coil former and a shield coil former arranged radially around the bore of the magnet, wherein a radius of the shield coil former is greater than a radius of the main coil former. The magnet also includes at least one main coil affixed to the main coil former, at least one shield coil affixed to the shield coil former, and at least one structural member affixed to the main coil former and to the shield coil former to provide structural support and enable longitudinal alignment adjustment between the main coil former and the shield coil former.

System And Method For Modeling Gradient Coil Operation Induced Magnetic Field Drift

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US Patent:
8362773, Jan 29, 2013
Filed:
Oct 5, 2010
Appl. No.:
12/897831
Inventors:
Tesfaye Kebede Kidane - Florence SC, US
Timothy John Havens - Florence SC, US
Longzhi Jiang - Florence SC, US
Mark Haig Khachaturian - Florence SC, US
Zhenyu Zhang - Florence SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G01V 3/00
US Classification:
324312, 324314
Abstract:
A system and method for modeling gradient coil operation induced magnetic field drift include a computer programmed to acquire a pulse sequence to be applied during an MR scan and determine a power spectrum of a plurality of gradient pulses of the pulse sequence. The computer is also programmed to calculate a drift of the magnetic field attributable to application of the plurality of gradient pulses by the plurality of gradient coils during application of the pulse sequence and apply the pulse sequence during the MR scan. The computer is further programmed to acquire MR data based on application of the pulse sequence, correct the acquired MR data based on the calculated drift of the magnetic field, and reconstruct an image based on the corrected MR data.
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Longzhi Etal Jiang from Red Hook, NY, age ~62 Get Report