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CIS Seminar: “Networked Systems in the Era of Programmable Dataplanes”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Abstract:  Emerging networking architectures are allowing for flexible and reconfigurable packet processing at line rate both on the switch and the NIC. Despite their promising new functionality, programmable switches and NICs are not all-powerful; they have limited state, support limited types of operations, and limit per-packet computation to operate at line rate. In this talk, I […]

CBE Seminar: “Collaboration and Competition Between Active Sheets for Self-Propelled Particles”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Abstract: Biological species routinely collaborate for their mutual benefit or compete for available resources, thereby displaying dynamic behavior that is challenging to replicate in synthetic systems. Here, we use computational modeling to design microscopic, chemically active sheets and self-propelled particles encompassing the appropriate synergistic interactions to exhibit bio-inspired “feeding”, “fleeing” and “fighting”. This design couples […]

MSE Faculty Candidate Seminar: “Defect Structure Process Maps for Laser Powder Bed Fusion Additive Manufacturing”

Auditorium, LRSM Building 3231 Walnut Street, Philadelphia, PA, United States

Additive manufacturing (AM) greatly expands the design freedom and near-net shape production of metallic components across multiple length scales. However, defects arising from starting materials, processing conditions, and post-processing may significantly affect the structural integrity and operational performance of metal AM parts. This paper seeks to elucidate common defects and defect formation mechanisms encountered in […]

CBE Dissertation: “DNA Mediated Particle Adhesion”

Raisler Lounge (Room 225), Towne Building 220 South 33rd Street, Philadelphia, PA, United States

Advisor: John Crocker, PhD; Committee Members: Talid Sinno, PhD; Scott Diamond, PhD; and Daniel Hammer, PhD

MEAM Seminar: “Liquid Crystal Elastomers”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Liquid crystal elastomers are rubbery solids with liquid crystal mesogens incorporated into their main chains. They display an isotropic to nematic phase transformation accompanied by a large spontaneous deformation. This in turn leads to rich variety of phenomena including ultra-soft behavior, stripe domains, shape-morphing etc. Further, when made as slender structures, the structural instability of […]

MEAM Doctoral Dissertation Defense: “Applications of a Double-stranded Elastic Rod Model to DNA”

4E9, DRLB 209 S. 33rd Street, Philadelphia, PA, United States

In the first part of the presentation, we discuss a double-stranded elastic rod (birod) model and apply it to study allosteric interactions between two ligands on DNA. Next, we combine the birod model with statistical mechanics and use it to study the temperature-induced strand separation in dsDNA. Allosteric interaction between two ligands on DNA is […]

Britton Chance Distinguished Lecture: “Regenerative Immunology: The Role of Technology Translation in Guiding Discovery”

Wu and Chen Auditorium (Room 101), Levine Hall 3330 Walnut Street, Philadelphia, PA, United States

Abstract: Biomaterial implants have a long history in the clinic, but regenerative biomaterials and regenerative medicine therapies, in general, have been slow to reach patients. Clinical translation provides a unique and critical opportunity to investigate the key therapeutic drivers of technology efficacy in people. Careful evaluation of clinical outcomes and reevaluation of design parameters is […]

MSE Faculty Candidate Seminar: “Structure-property relations in hybrid 2D halide perovskites”

Auditorium, LRSM Building 3231 Walnut Street, Philadelphia, PA, United States

Two-dimensional (2D) hybrid organic-inorganic perovskites are under intense investigation due to their interesting physical properties and superior performance in thin-film based optoelectronic devices. The structural diversity embedded in the system provides a variety of parameters to target favorable properties for applications in photovoltaics (PV) and light emitting diodes (LEDs). In this talk, Dr. Mao will […]

PICS Seminar – Dr. Yoichiro Mori of the University of Pennsylvania & the University of Minnesota

PICS Conference Room 534 - A Wing , 5th Floor 3401 Walnut Street, Philadelphia, PA, United States

Abstract: Mathematical Justification of Slender Body Theory Systems in which thin filaments interact with the surrounding fluid abound in science and engineering. The computational and analytical difficulties associated with treating thin filaments as 3D objects has led to the development of slender body theory, in which filaments are approximated as 1D curves in a 3D […]