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Events for October 22, 2009
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Photography For Aircraft Accident Investigation - Oct.22-23, 2009
Thu, Oct 22, 2009
Aviation Safety and Security Program
Conferences, Lectures, & Seminars
PHOTO 10-1
For more information and to register for Aviation Safety and Security Program courses, please visit http://viterbi.usc.edu/aviation.Audiences: Registered Audiences Only
Contact: Viterbi Professional Programs
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Co-Op/Intern Panel - Lunch Included
Thu, Oct 22, 2009 @ 12:00 PM - 01:00 PM
Viterbi School of Engineering Career Connections
Workshops & Infosessions
Are you looking for an internship this summer? Have you ever wondered what a Co-Op is? Come to the Viterbi Engineering Intern and Co-Op panel this Thursday to learn more. Current undergraduate and graduate Viterbi students will share how they received their positions and answer your questions about how to succeed as an intern. Lunch will be served. Please RSVP to Viterbi.careers@usc.edu. There is limited space for this event.
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: All Viterbi Students
Contact: RTH 218 Viterbi Career Services
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SIZE MATTERS: Mechanical properties of materials at nano-scale
Thu, Oct 22, 2009 @ 12:45 PM
Mork Family Department of Chemical Engineering and Materials Science
Conferences, Lectures, & Seminars
Distinguished Lecture SeriesPresentsJulia GreerCaltechAbstract:While "super-sizing" seems to be the driving force of our food industry, the direction of materials research has been quite the opposite: the dimensions of most technological devices are getting ever smaller. These advances in nanotechnology have a tremendous impact on parts of the economy as diverse as information, energy, health, agriculture, security, and transportation. Some of the examples include data storage at densities greater than one terabit per square inch, high-efficiency solid-state engines, single-cell diagnostics of complex diseases (e.g. cancer), and the development of ultra light yet super-strong materials for vehicles, with the component sizes comprising these technological devices reduced to the sub-micron scale. The functionality of these devices directly depends on their structural integrity and mechanical stability, driving the necessity to understand and to predict mechanical properties of materials at reduced dimensions. Yield and fracture strengths, for example, have been found to deviate from classical mechanics laws and therefore can no longer be inferred from the bulk response or from the literature. Unfortunately, the few existing experimental techniques for assessing mechanical properties at that scale are insufficient, not easily accessible, and are generally limited to thin films. In order to design reliable devices, a fundamental understanding of mechanical properties as a function of feature size is desperately needed; with the key remaining question whether materials really are stronger when the instrumental artifacts are removed, and if so then why and how. A key focus in Professor J.R.Greer's research is the development of innovative experimental approaches to assess mechanical properties of materials whose dimensions have been reduced to nano-scale not only vertically but also laterally. One such approach involves the fabrication of nanopillars with different initial microstructures (single crystalline, nano-crystalline, amorphous, etc.) ranging in diameter from 100 nm to 800nm by using Focused Ion Beam (FIB) and micro-fabrication approaches. Their strengths in uniaxial compression and tension are subsequently measured in a one-of-a kind in-situ mechanical deformation instrument developed in the Greer lab. This instrument is called SEMentor, as it is comprised of the Scanning Electron Microscope (SEM) and Nanoindenter, which allow for precise control of displacement and loading rates, as well as for simultaneous video capture. Some representative images of various nano-sized mechanical testing specimen are shown in Figure 1. In this seminar we will discuss the differences observed between mechanical behavior in two fundamental types of crystals: face-centered cubic (fcc) and body-centered cubic (bcc), as well as of nano-crystalline Nickel and amorphous metallic glasses with nano-scale dimensions. In a striking deviation from classical mechanics, we observe a SMALLER IS STRONGER phenomenon in single crystals manifested by the significant (~50x) increase in strength of as material size is reduced to 100nm. To the contrary, nano-crystalline materials tend to exhibit the opposite trend: SMALLER is SOFTER. Finally, metallic glasses, whose Achilles; heel has always been the occurrence of catastrophic failure at very small strains, exhibit non-trivial ductility when reduced to nano-scale. Furhtermore, unlike in bulk where plasticity commences in a smooth fashion, all of these materials exhibit numerous discrete strain bursts during plastic deformation. These remarkable differences in the mechanical response of nano-scale solids subjected to uniaxial compression and tension challenge the applicability of conventional plasticity models at the nano-scale. We postulate that they arise from the effects of free surfaces, leading to the significant differences in dislocation behavior for the case of crystals, grain-boundary activity for the case of nano-crystalline solids, and shear transformation zones in metallic glasses. and serve as the fundamental reason for the observed differences in their plastic deformation. These mechanisms and their effect on the evolved microstructure and the overall mechanical properties will be discussed.
Location: John Stauffer Science Lecture Hall (SLH) - 100
Audiences: Everyone Is Invited
Contact: Petra Pearce Sapir
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Ernst and Young Information Session - CANCELED
Thu, Oct 22, 2009 @ 01:15 PM - 02:15 PM
Viterbi School of Engineering Career Connections
Workshops & Infosessions
This Information Session has been Canceled.
Location: CANCELED
Audiences: All Viterbi Students
Contact: RTH 218 Viterbi Career Services
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CS DLS: Dr. Tony Derose
Thu, Oct 22, 2009 @ 04:00 PM - 05:30 PM
Thomas Lord Department of Computer Science
Conferences, Lectures, & Seminars
Time: 4 PM - 5:30 PMLocation: SSL 150Talk title: Math in the MoviesSpeaker: Dr. Tony DeRose (Pixar Animation Studios)Host: Prof. Jernej BarbicAbstract:Film making is undergoing a digital revolution brought on by advances in areas such as computer technology, computational physics, geometry, and approximation theory. Using numerous examples drawn from Pixar's feature films, this talk will provide a behind the scenes look at the role that math plays in the revolution.Bio:
Tony DeRose is currently a Senior Scientist and lead of the Research
Group at Pixar Animation Studios. He received a BS in Physics in from
the University of California, Davis, and a Ph.D. in Computer Science
from the University of California, Berkeley. From 1986 to 1995 Dr.
DeRose was a Professor of Computer Science and Engineering at the
University of Washington. In 1998, he was a major contributor to the
Oscar (c) winning short film "Geri's game", in 1999 he received the
ACM SIGGRAPH Computer Graphics Achievement Award, and in
2006 he received a Scientific and Technical Academy Award (c) for his
work on surface representations.
Location: Seaver Science Library (SSL) - 150
Audiences: Everyone Is Invited
Contact: CS Front Desk
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WIE Connect Volunteer Meeting
Thu, Oct 22, 2009 @ 05:00 PM - 06:00 PM
Viterbi School of Engineering Student Affairs
Student Activity
Interested in volunteering and serving as a mentor for local high school girls? If so, join us for this Fall's WIE Connect! WIE Connect is an opportunity for local high school girls to visit USC for a day and learn about engineering from current female undergraduates. Volunteers are needed to organize activities, lead workshops, and help out the day of the event. If you are interested in learning more, join us for the first volunteer meeting. Pizza will be served!
Location: Ronald Tutor Hall of Engineering (RTH) - 211
Audiences: Undergraduate Viterbi Women
Contact: Women in Engineering
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SWE Tea With Faculty
Thu, Oct 22, 2009 @ 05:00 PM - 06:30 PM
Viterbi School of Engineering Student Organizations
Student Activity
Come enjoy some afternoon tea with your female engineering faculty. Discuss research, women in academia, or even where the best places to eat in Los Angeles are! Build a network that will last your entire college career with some of the most interesting people on campus. Invite any of your female engineering professors to come join us!
Location: Parkside Multipurpose Room
Audiences: Everyone Is Invited
Contact: Society of Women Engineers
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Turner Construction
Thu, Oct 22, 2009 @ 06:30 PM - 07:30 PM
Viterbi School of Engineering Career Connections
Workshops & Infosessions
Join representatives of this company as they share general company information and available opportunities.
Location: Grace Ford Salvatori (GFS) 106
Audiences: All Engineering Students
Contact: RTH 218 Viterbi Career Services
