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SIT-Summer Institute in Taiwan
Academic Exchange & Cultural Experience in Taiwan
Remarks by Dr. Ming-Chih Lai (賴明治) for Szu-Pei Fu (傅斯沛)

    I’m glad to have Szu-Pei Fu from Department of Mathematical Sciences, New Jersey Institute of Technology, USA, as a research fellow in my lab this summer. Since last year we have met couple of times in workshops and conferences and exchanged some emails talking about the research plan. Szu-Pei’s PhD program advisor Yuan-Nan Young is my collaborator and with him their researches are focus on simulating the dynamics of coarse-grained bio-membrane in the flow. Szu-Pei is currently working on the Molecular dynamics (MD) simulations of bio-membrane and bio-polymers. In recent years MD brings huge amount of interesting topics in bio-physical problems such as ionic transport problems, coarse-grained cell membrane simulations and new computational fluid mechanics solver. Since our group has developed a robust fluid mechanics solver to vesicle problems, our goal is to couple the molecular dynamics models with our fluid solver to validate the known experimental results.

    In the first half of EAPSI summer program, Szu-Pei has done some validations between simulation results and experiment data of single DNA molecule in linear flow using the Fast Multipole Method which is a fast algorithm for calculating hydrodynamic interactions between particles. Right now Szu-Pei and his advisor are preparing to write the paper about this work. In the second half of the program, he has worked on the coarse-grained vesicle simulations. In continuum model which our group focuses on, the latest result is that we can use spring-like elastic force to replace the unknown tension. Based on this idea, for Szu-Pei’s particle based model and fast multipole method, putting a specific spring force onto the coarse-grained surface is reasonable. It is a brand new idea to couple two well-known methods (Immersed boundary and fast multipole method) for doing molecular dynamics simulations. Many researchers have obstacles on saving computing cost and we expect to have good results soon after this program.

    During Szu-Pei’s visit, I saw him spent time on reading various journal articles to find the new idea of having better vesicle models. He will keep working to finish this project right after he returns. I am looking forward to having our future collaboration. It is a nice experience to have this opportunity of having exchange student from the United States. We thank the sponsors of this program; the National Science Foundation of USA, and the Ministry of Science and Technology of Taiwan.

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