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00. Hi, this is

Hongjin Wang.

I build bridges between physics and computer science.

I am interested in building distributed systems for scientific computation on an interdisciplinary area between materials science, geophysics, and computer science.

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01. About Me

Hongjin Wang at American Geophysical Union Meeting

Washington DC, Dec 2018

I'm a graduate student at Columbia University researching on an interdisciplinary area between geophysics and computer science. I develop scientific computation tools and frameworks to perform first-principle calculations in large scale.

Here's a few things I'm experienced with:

Python
Javascript
Julia

Java
Fortran
HTML+CSS

02. Experience

M.Sc. in Computer Sciences

Graduate Student
New York, NY, Sep 2019 - Now

Currently a Master student in Department of Computer Sciences, Columbia University

Computing Materials Framework

Research Assistant
New York/Palisades, NY, Mar 2018 - Aug 2019

Design a new algorithm: T-dependent phonon gas model(TPGM)
Develop a Python package emblemed with TPGM to compute thermodynamics properties
Generate million magnitude calculations with limited first principle calculations input
Accelerate the package with just-in-time(JIT) compilation and implement automation test in the package
Calculate the thermodynamics properties and elasticity of ε-iron at inner core condition

Molecular Dynamics Visualization

Research Assistant
New York, NY, Dec 2018

Visualize molecular dynamics with 2D/3D modelling, including molecular trajectory and bonding
Compatible with mainstream first-principle calculation software (VASP, Quantum ESPRESSO) output

Exoplanet Modeling

Research Assistant
New York, NY, Oct - Nov 2018

Develop a parallel 4th order Runge-Kutta solver to compute the mass-radius elationship of exoplanets
Generate exoplanet model with different chemical composition
Results predicted within the range of the NASA exoplanet archive

Research Assistant
New York, NY, May - Jul 2018

Design workflow on High Performance Computing (HPC) to perform first principle calculations of iron at inner core conditions
Modify the workflow for different HPCs and live monitor the calculation process
Use MPI/OpenMP to accelerate first principle calculations

Chinese Academy of Science

Semiconductor Fabrication Intern
Suzhou, China, Jul - Aug 2016

Practiced nano-fabrication techniques and operations of semiconductor devices, including depositing, photoetching, etching and packaging

GE Healthcare Group

CT Image Quality Intern
Beijing, China, Jul - Sep 2015

Made simulations of cardiovascular system to collect data and analyzed hundreds cases of rtifacts which influence surgery diagnoses
Tested the efficiency of new reconstruction algorithms under different surgery conditions
Research on the influence of different body plant materials on CT reconstruction image artifacts
Develop a strong adaptive ability in interdisciplinary research environments

MOOC System in NJUST

Teaching Assistant
Nanjing, China, Mar - Jun 2015

Design a MOOC system starting form the vedio recording to course vedio distribution
Over 8000 minutes vedio has been produced by the system, covering all the fundamental courses in Materials Science

Siemens Medical Equipment Co. Ltd.

R&D Intern
Shanghai, China, Jul - Sep 2014

Participated in the development of a new product and using project and risk management knowledge.
Develop a departmental human resource management system for X-ray Product(XP) R&D team.

03. See my notes

Norm-Conservation
Pseudopotentials

Deriviation of NCPP.

Mass-radius Relation

Interesting topic in astrophysics.

Molecular Dynamics
in different ensembles

Origin of molecular dynamics

04. Contact me

Get in touch

Whether for a potential opportunity or just to say hi, I'll try my best to answer your email!

hw2626@columbia.edu