Jia-Rong Hong

Departments of Mechanical Engineering, Electrical and Computer Engineering, and the Saint Anthony Falls Laboratory, University of Minnesota

Abstract:

Particles (e.g., dust, cells, droplets) with size ranging from nm to mm are ubiquitous in our daily life. To determine their properties in situ is vital for many applications. Here I will share with you our recent advancement in both the instrumentation and computational algorithms of digital inline holography (DIH) as a low cost and compact tool for 3D imaging of particles suspended in the flow. Enabled by such advancement, we have implemented DIH not only to study fundamental problems in the field of fluid dynamics, but also characterize particle properties and behaviors in agriculture, meteorology, medical sciences, microbiology, material sciences, etc. A number of such examples including measurements of wall-bounded turbulent flows, characterization of risks of airborne disease transmission, and detection of cancer cells in a blood stream will be provided.

Biography:

Jiarong Hong is a professor in the Departments of Mechanical Engineering, Electrical and Computer Engineering, and the Saint Anthony Falls Laboratory at the University of Minnesota. He is also the Chief Technology Officer of Astrin Biosciences, Inc., a tech startup focused on providing personalized cancer diagnostics and treatment solutions, and the founder of another startup, Particle4X, Inc., specialized in developing cutting-edge particle diagnostic techniques for various applications. He received his B.S. from the University of Science and Technology of China in 2005 and his M.S. and Ph.D. from Johns Hopkins University in 2008 and 2011, respectively. After starting his academic career at the University of Minnesota in 2012, he has focused on developing novel flow imaging techniques, known as flowscopes, which allow for the observation of flow and particle movements within the flow at unprecedented spatial and temporal resolutions across a broad range of disciplines. With these techniques, his work addresses challenging fundamental questions in fluid dynamics and enables research in fields such as oceanography, agriculture, robotics and sensing, microbiology, medical sciences, and material sciences. He has published more than 100 journal papers and has 17 international and US patents. Hong is a recipient of several awards, including the National Science Foundation CAREER Award, Office of Naval Research Young Investigator Award, and McKnight Land-grant Professorship from the University of Minnesota. His research on wind energy, supercavitation, snow settling, drone-based wildfire characterization and monitoring, Covid-19 transmission, and cancer diagnostics has been widely covered by international media and featured in TV programs.

时间：2024年5月20日（周一）下午14:00-15:30

地点：新葡萄8883国际官网1号楼210会议室

联系人：杨延涛