Affiliation: University of Michigan
Hosted By: Professor Bharat Bhushan
Description: In this talk I will discuss the current work in my group on developing surfaces with extreme wettabilities, i.e. surfaces that are either completely wet by, or completely repel, different liquids. The first portion of the talk will cover the design of so called “superomniphobic surfaces” i.e. surfaces which repel all liquids. Designing and producing textured surfaces that can resist wetting by low surface tension liquids such as various oils or alcohols has been a significant challenge in materials science, and no examples of such surfaces exist in nature. As part of this work, I explain how re-entrant surface curvature, in addition to surface chemistry and roughness, can be used to design surfaces that cause virtually all liquids, including oils, alcohols, water, concentrated organic and inorganic acids, bases, solvents, as well as, viscoelastic polymer solutions to roll-off and bounce.
The second portion of my talk will cover the design of the first-ever reconfigurable membranes that, counter-intuitively, are both superhydrophilic (i.e., water contact angles @ 0°) and superoleophobic (i.e., oil contact angles > 150°). This makes these porous surfaces ideal for gravity-based separation of oil and water as they allow the higher density liquid (water) to flow through while retaining the lower density liquid (oil). These fouling-resistant membranes can separate, for the first time, a range of different oil–water mixtures, including emulsions, in a single-unit operation, with >99.9% separation efficiency, by using the difference in capillary forces acting on the oil and water phases. As the separation methodology is solely gravity-driven, it is expected to be one of the most energy-efficient technologies for oil-water separation.
I will also discuss surfaces with patterned wettability, where both wetting (omniphilic) and non-wetting (omniphobic) domains are fabricated on the same substrate. We use such substrates for fabricating monodisperse, multi-phasic, micro- and nano-particles possessing virtually any desired composition, projected shape, modulus, and dimensions as small as 25 nm. Finally, I will discuss some other areas of current and future research, including the development of ice-phobic coatings that offer one of the lowest reported adhesion strengths with ice.
Host: Levent Guvenc
Speaker: Santhosh Tamilarasan
Title: Impact of CACC on Convoy Drivability
Registration is limited to the first 40 registrants for each session.
Speaker: Dr. Lin Chen
Affiliation: Northwestern University
Title: Ultrafast Electronic and Nuclear Structural Dynamics of Excited State Transition Metal Centers for Solar Energy Conversion
Host: Dr. Baker
Speaker: Jakub Husek
Title: Achieving Surface Sensitivity in XUV Spectroscopy: Probing Electron Dynamics of Hematite Using XUV Transient Reflectivity
Advisor: Dr. Baker
Speaker: Belinda Hurley, Associate Professor, Research and Education, OSU Libraries
The OSU Libraries spend many millions each year to provide resources that are not freely available online. Belinda Hurley, OSU Libraries’ liaison for Physical Sciences and Engineering, will present an overview of available resources and services to those new to the OSU Libraries system.
Speaker: Dr. Gojko Lalic
Affiliation: University of Washington, Seattle
Title: Copper Catalysis in Hydrofunctionalization of Unsaturated Compounds
Hosted: Dr. Nagib
Host: Giorgio Rizzoni
Speaker: Tianpei Li
Title: Motor resolver fault propagation analysis for electrified powertrain
Title: Magnetism and nematicity in (111) oxide electron gases
Abstract: Recent experiments have begun to explore surface and interface 2D electron gases of (111) oxide heterostructures. Motivated by these experiments, we theoretically examine the many-body instabilities of such 2DEGs driven by multiorbital interactions. We find a rich variety of ferromagnetic and antiferromagnetic orders accompanied by ferroorbital order which breaks lattice rotational symmetry. Such ordered phases or their fluctuating variants might lead to electronic nematicity, which might potentially explain the low temperature onset of transport anisotropies observed in certain experiments.
Presented by the Construction Systems Management Industry Advisory Council
Women Inspire Construction presented by The Ohio State University Construction Systems Management Industry Advisory Council is an event to gather the construction industry to focus on retention and community. Come to be empowered and join a conversation that leaves you inspired. The construction industry fosters long lasting relationships that lead to professional success. Both men and women are welcome to JOIN THE CONVERSATION!
Meet the panelists:
Nissa Beasley currently works as a Project Manager at TriVersity Construction with 24 years of experience in the construction industry. Nissa specializes in major renovation projects, lab construction and multi-story buildings and schools. She is also TriVersity’s subject matter expert with Phoenix Scheduling Program software and helps train project engineers on the program. Before joining TriVersity, Nissa worked for other high profile construction companies in the region.
Nissa received her B.S. in construction management from the University of Cincinnati. She serves as secretary on the board of NAWIC (National Association of Women in Construction) as well as a participating in its membership committee. Nissa was named NAWIC’s Cincinnati Chapter New Leader in 2017. Through NAWIC, she also volunteers for community events for children including Block Kids and the YWCA’s Rosie’s Girls
Heather Cassady currently work as a Project Manager on the $32M Canopy by Hilton hotel project located in Columbus, Ohio. She has been in the construction industry and with Turner Construction for 16 years. Throughout her years at Turner, Heather’s career has evolved in various management roles, including superintendent, sustainability manager, recruiting leader, and estimating engineer. Heather’s projects in Central Ohio have been in the healthcare, hotel, civic, and educational sectors.
Heather received her B.S. in Construction Engineering from the University of Akron. She is a LEED AP and serves as a community leader by dedicating her time and talent to support the National Association for Women in Construction (NAWIC), Women for Economic Leadership and Development (WELD) and the OSU CSM Industry Advisory Council.
Audra Smith currently works as a Project Executive for Pepper Construction and has extensive experience in construction management on large scale projects throughout central and northeastern Ohio. She has worked in the healthcare, higher education, mixed-use, and corporate office markets and has been involved in $578M worth of construction during her 15 year career. Her expertise is in client relationships and developing the appropriate processes, communication, and expectations to allow her project teams to be successful and meet the needs of the clients and owners. Prior to joining Pepper, she worked for Whiting-Turner Contracting and was responsible for all project interface, shutdown, and management of impactful construction to clients.
Audra earned a B.S. in Industrial Engineering from Pennsylvania State University and holds LEED AP BD+C credentials. She resides in Galena, Ohio with her sons Max and Vin. They share a passion for sports and her sons’ involvement in the Olentangy Local School District athletic programs afford her the opportunity to mentor, coach, and support their programs through fundraising and classroom academic activities.