Yi (William) Jin - gwu.edu - George Washington University

PROFESSIONAL RESEARCH EXPERIENCE
G.E. Global Research/Dept. of Energy/GWU - Niskayuna, New York 2009-Present
Assistant Research Scientists for Advanced Magnetic Refrigeration Project
Investigated the critical field entitlement (field required to activate the magnetocaloric effect within magnetic materials) of
selected magnetic refrigerant alloy systems through experimental measurements and thermodynamic modeling. Synthesizing
alloy system with lowered critical field, will improve the weight and power factor of the magnetic refrigeration design by more
than 50%. My research duties included examining the crystal structures using X-rays Crystallography, measuring the magnetic
properties using SQUID/VSM and PPMS, modeling the collected results using enhanced local bi-stability models, and redesigning
the magnetic regenerator using COMSOL.
Accomplishment
� Due to excellent performance, 6 months preliminary contract was extended to 2 years worth $400,000.
� Created a new data retrieving technique/software (Precision Image Analyzer) to retrieve irreproducible data, currently
used at GE Global Research, NIST, and GWU.
� Discovered a self-similarity behavior in all magnetic materials, in the process of linking it to Fractal mathematics.
NASA Goddard Space Flight Center/GWU - Greenbelt, MD 2008-2010
Assistant Research Scientists for the Aquarius Mission and SMAP (Soil Moisture Active Passive) Mission
Aquarius Mission: Designed a seawater permittivity measurement system using the resonant cavity technique and measured
the permittivity of seawater as a function of its salinity and temperature at the radiometric protected frequency band of
1.413GHz. Variation in seawater salinity can have a dramatic effect on global climate; the Aquarius Mission will remotely sense
sea surface salinity from space.
SMAP Mission: Analyzed soil moisture content via electrical measurement and processing in a mixed agriculture environment
located on the Bay Bridge region of Washington D.C., the project is in preparation to launch the Soil Moisture Active Passive
(SMAP) satellite in 2013.
Accomplishment
� Formulated a critical permittivity of seawater function for the satellite, Aquarius/SAC-D Delta II was officially launched on
June 10 th 2011.
ACADEMIC RESEARCH EXPERIENCE
Institute for Magnetics Research/George Washington University – Washington, D.C. 2006-Present
Student Researcher
Working on modeling, experimental measurements, and the use of magnetic materials. The materials studied are magnetic
nanostructures, magnetic recording media, magneto-optical media, and magnetostrictive materials. Properties studied include
Bose-Einstein Condensation in nanoparticles. Modeling methods employed include Preisach based models, micromagnetics
and nonlinear finite element models.
Accomplishment
� Received the ARCS (Achievement Rewards for College Scientists) Award at the U.S. Supreme Court for outstanding
scientific achievements.
University of Virginia – Charlottesville, VA 2003-2004
Student Researcher
Worked on analysis of the design specifics for using Quantum Cellular Automata technology as the fundamental building block for
future computer and electronic systems.
PUBLICATIONS
� Y. Jin, S. Gu, L.H. Bennett, E. Della Torre, V. Provenzano, and Q. Zhao, “Self-Similarity in (dM/dT)H Curves for
Magnetocaloric Materials with Ferro-to-Paramagnetic Phase Transitions, submitted to Journal of Applied Physica (2011).
� Y. Jin, S. Gu, L.H. Bennett, E. Della Torre, and V. Provenzano, “Modeling of Metamagnetism in Metallic-based Materials
with First-Order Transitions”, to be published in Physica B: Condensed Matter (2011).
� S. Gu, Y. Jin, P. Chen, C. Yan, E. Della Torre, and L.H. Bennett, “Modeling of magnetic material displaying magnetic
aftereffect with slow decay rates”, to be published in Physica B: Condensed Matter (2011).
� L.H. Bennett, V. Provenzano, Y. Jin, R.D. Shull, I. Levin, and E. Della Torre, “Modeling of coupled magneto-structural and
magnetic hysteresis in a Heusler alloy”, to be published in Physica B: Condensed Matter (2011).
� R. Lang, Y. Jin, S. Gu, D. Le Vine, “A New Model Function for the Permittivity of Seawater at 1.413GHz”, Proceedings of 11 th
Microwave Radiometry and Remote Sensing of the Environment Specialist Meeting, pp. 121-123 (2010).
� P.J. Chen, Y. Jin, L.H. Bennett, and E. Della Torre, “Calculation of the Error in the Zero-Crossing Method of Computing the
Magnetic Thermal Fluctuation”, IEEE Transaction on Magnetics, vol. 46, pp. 1155-1158 (2010).
� E. Della Torre and Y. Jin, “Comparison of the DEMAM and DEAM Accommodation Models”, IEEE Transaction on Magnetics,
vol.45, pp. 1198-1201 (2009).
PERSONAL
Native in English, Speak fluent in Mandarin Chinese; Enjoy statistical analysis of Basketball statistics & composing piano melody
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