Distinguished Seminar Series: Longya Xu
“Wide Bandgap Power Electronics for Multipurpose Power Grid”
A lecture by Longya Xu, The Ohio State University
A lecture by Longya Xu, The Ohio State University
Several new faculty across four departments joined our ranks this semester, including a very esteemed hire in Rams Ramamoorthy as a Professor in chemical and biomedical engineering and the National High Magnetic Field Laboratory.
These changes took effect now, at the start of the Fall 2023 semester. Join us in congratulating these deserving instructors and researchers, all of whom are jointly appointed at both Florida A&M and Florida State universities as part of their affiliation with our joint college.
FAMU-FSU College of Engineering’s biomedical engineering undergraduate program is newly accredited by the EAC Accreditation Commission(s) of ABET, https://www.abet.org, under the General Criteria and the Bioengineering and Biomedical Program Criteria. The first graduating class in the BME program was in 2021 and the new designation applies to all graduates retroactively. Accreditation is the gold standard and is a marker of program quality in engineering.
The cardiovascular (CV) system is a highly dynamic system where the interplay between vascular physiology, hemodynamics, and transport phenomena plays a dominant role in health and disease. Abnormal features of local blood flow (e.g., low/high shear stress, eddies, etc) have been associated with a variety of vascular diseases including atherosclerosis, brain and aortic aneurysms, stroke, heart valve disease and arterial thrombosis.
Diverse polymers, small-molecule liquids, and colloids exhibit large alterations in relaxation dynamics, glass transition temperature, and transport properties under nanoscale confinement and in the nanoscale vicinity of interfaces. These alterations have major technological implications, ranging from the stability of polymeric nanostructures to mechanical reinforcement in polymeric nanocomposites to the formation of ultrastable glasses.
Polyelectrolyte complexes, PECs, are obtained by mixing polyelectrolytes of opposite charge, Pol+ and Pol-. Counterions are expelled as Pol+ and Pol- pair together. The resulting material can be glassy to liquid-like, depending on the polymers mixed and the conditions used. This talk will focus on the viscoelastic properties of entangled PECs, ranging from the fastest to the slowest motions.
Ionic liquids have generated considerable excitement for their varied potential applications and their interesting physical properties. The viability of ionic liquids (ILs) in materials applications is limited by their lack of mechanical integrity, which may be provided by mixing them with a polymeric material.
Researchers at FAMU-FSU College of Engineering have developed two closely related polymers that respond differently to high and low-temperature thresholds, despite their similar design. The polymer pair could be used in applications in medicine, protein synthesis, protective coatings and other fields. Their work is published in Macromolecules.