Profile Details

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Hire Dr. Johnny C.

Canada

USD 20 /hr

Researcher, Material scientist, Device Engineering

Profile Summary

Highly motivated Ph.D. graduate in System Design Engineering with a robust background in nanomaterial engineering and over 4 years of dedicated research and development industrial experience in field emission electron sources. Proven expertise in electron beam generation and characterization, high voltage/vacuum system optimization, nano-device design and fabrication, nanomaterial characterization. Highly motivated and results-oriented Space Radiation Researcher/Engineer with 5 years of experience in designing, analyzing, and implementing radiation shielding for spacecraft and space missions.

Subject Matter Expertise

• ☆ Microscopy
• ☆ Electron Microscopy
• ☆ Chemical Engineering
• ☆ Process Chemistry
• ☆ Particle Physics
• ☆ Human Physiology
• ☆ Space Physiology

Services

• Writing
• Research
• Consulting
• Product Development

Writing Technical Writing, General Proofreading & Editing, Translation

Research User Research, Feasibility Study, Technology Scouting, Fact Checking, Scientific and Technical Research, Systematic Literature Review

Consulting Scientific and Technical Consulting

Product Development Recipe Development, Stability/Shelf Life Testing, Product Evaluation, Material Sourcing, Concept Development, Prototyping, Device Fabrication

Work Experience

Freelance analyst

n/a

July 2023 - Present

Research Lead

University of Waterloo

May 2019 - July 2023

Support Engineer

Shenzhen Huachengfeng Electronics Industry Co.,Ltd.

December 2011 - July 2012

Education

Ph.D

University of Waterloo

January 2013 - July 2018

Ph.D. (System Design Engineering)

University of Waterloo Faculty of Engineering

May 2014 - June 2018

Certifications

• Certification details not provided.

Publications

JOURNAL ARTICLE

Siyuan Chen, Shruti Nambiar, Zhenhao Li, Ernest Osei, Johnson Darko, Wanping Zheng, Zhendong Sun, Ping Liu, John T. W. Yeow(2019). Bismuth oxide-based nanocomposite for high-energy electron radiation shielding . Journal of Materials Science. 54. (4). p. 3023--3034. Springer Science and Business Media {LLC}

Chen, Siyuan(2018). Polymer Based Nanocomposites as Multifunctional Structure for Space Radiation Shielding: A Study of Nanomaterial Fabrications and Evaluations. University of Waterloo

Zhenhao Li, Siyuan Chen, Shruti Nambiar, Yonghai Sun, Mingyu Zhang, Wanping Zheng, John T W Yeow(2016). PMMA/MWCNT nanocomposite for proton radiation shielding applications . Nanotechnology. 27. (23). p. 234001. {IOP} Publishing

CONFERENCE PAPER

Yonghai Sun, Fangjun Liu, Siyuan Chen, John T.W. Yeow(2015). Initial investigation of entropy of mixing in polymer carbon nanotube composite . 2015 IEEE 15th International Conference on Nanotechnology (IEEE-NANO). {IEEE}

Siyuan Chen, Shruti Nambiar, Zhenhao Li, Yonghai Sun, Shen Gong, George Z.H. Zhu, John T.W. Yeow(2014). Polymer nanocomposite for space applications . 14th IEEE International Conference on Nanotechnology. {IEEE}