Seminars and Colloquia by Series

Series: Other Talks
Friday, October 5, 2012 - 11:00 , Location: MRDC, Room 4211 , Evelyn Wang , Department of Mechanical Engineering, MIT , Organizer: John McCuan

Host: David Hu. Refreshments will be served.
<a href=" target="_blank">Speaker's Bio</a>

Nanoengineered surfaces offer new possibilities to manipulate fluidic and thermal transport processes for a variety of applications including lab-on-a-chip, thermal management, and energy conversion systems. In particular, nanostructures on these surfaces can be harnessed to achieve superhydrophilicity and superhydrophobicity, as well as to control liquid spreading, droplet wetting, and bubble dynamics. In this talk, I will discuss fundamental studies of droplet and bubble behavior on nanoengineered surfaces, and the effect of such fluid-structure interactions on boiling and condensation heat transfer. Micro, nano, and hierarchical structured arrays were fabricated using various techniques to create superhydrophilic and superhydrophobic surfaces with unique transport properties. In pool boiling, a critical heat flux >200W/cm2 was achieved with a surface roughness of ~6. We developed a model that explains the role of surface roughness on critical heat flux enhancement, which shows good agreement with experiments. In dropwise condensation, we elucidated the importance of structure length scale and droplet nucleation density on achieving the desired droplet morphology for heat transfer enhancement. Accordingly, with functionalized copper oxide nanostructures, we demonstrated a 20% higher heat transfer coefficient compared to that of state-of-the-art dropwise condensing copper surfaces. These studies provide insights into the complex physical processes underlying fluid-nanostructure interactions. Furthermore, this work shows significant potential for the development and integration of nanoengineered surfaces to advance next generation thermal and energy systems.
Series: Other Talks
Tuesday, October 2, 2012 - 11:00 , Location: Skiles 114 , David Murrugarra , Georgia Tech , Organizer: Christine Heitsch
A discussion of the paper "Probabilistic Boolean networks: a rule-based uncertainty model for gene regulatory networks" by Shmulevich et al.
Series: Other Talks
Tuesday, September 25, 2012 - 10:00 , Location: Skiles 114 , Will Perkins , Georgia Tech , Organizer: Christine Heitsch
Further discussion of co-transcriptional RNA folding, and the potential for trap models to capture these dynamics.
Series: Other Talks
Tuesday, September 18, 2012 - 10:00 , Location: Skiles 114 , Will Perkins , Georgia Tech , Organizer: Christine Heitsch
We will continue discussing co-transcriptional RNA folding, and the potential for trap models to capture these dynamics. 
Series: Other Talks
Tuesday, September 11, 2012 - 10:00 , Location: Skiles 114 , Will Perkins , Georgia Tech , Organizer: Christine Heitsch
 We will discuss how best to model and predict the co-transcriptional effects of RNA folding.  That is, using the fact that the RNA molecule begins folding as the sequence is still being transcribed, can we find better predictions for the secondary structure? And what is a good mathematical model for the process? 
Series: Other Talks
Tuesday, September 4, 2012 - 10:00 , Location: Skiles 114 , Christine Heitsch , Georgia Tech , Organizer: Christine Heitsch
Organizational meeting.
Series: Other Talks
Monday, June 18, 2012 - 09:30 , Location: Klaus 1116 , Greg Blekherman, Anton Leykin, and Josephine Yu , Georgia Tech , Organizer: Anton Leykin
This is a summer school (June 18th - July 6th) in computational algebraic geometry intended for graduate students, however, everyone is welcome to attend. For details and schedule see The first day's schedule has been slightly altered; we will give introductory lectures at 9:30 (Anton Leykin -- Computer Algebra and Numerical Algebraic Geometry), 11:30 (Greg Blekherman -- Convexity), and 2:00 (Josephine Yu -- Tropical Geometry).
Series: Other Talks
Wednesday, May 23, 2012 - 13:00 , Location: Klaus 1116W , Jim Orlin , MIT Sloan Management , Organizer:
Over the past 30 years, researchers have developed successively faster algorithms for the maximum flow problem. The best strongly polynomial time algorithms have come very close to O(nm) time. Many researchers have conjectured that O(nm) time is the "true" worst case running time. We resolve the issue in two ways. First, we show how to solve the max flow problem in O(nm) time. Second, we show that the running time is even faster if m = O(n). In this case, the running time is O(n^2/log n).
Series: Other Talks
Monday, April 30, 2012 - 11:00 , Location: Skiles 114 , Martin Copenhaver , Georgia Tech , Organizer: Christine Heitsch
A discussion of the paper "Modeling and automation of sequencing-based characterization of RNA structure" by Aviran et al (PNAS, 2011).
Series: Other Talks
Sunday, April 29, 2012 - 08:30 , Location: Skiles 005 , Southeast Geometry Seminar , School of Mathematics, Georgia Tech , Organizer: John McCuan

The general public lecture will be presented by Jason Cantarella (University of Georgia) entitled
The Square Peg Theorems or What does it mean to solve simultaneous equations? to take place in Klaus 1116 at 5:00PM

The Southeast Geometry Seminar is a series of semiannual one-day events focusing on geometric analysis. These events are hosted in rotation by the following institutions: The University of Alabama at Birmingham;  The Georgia Institute of Technology;  Emory University;  The University of Tennessee Knoxville.  The following five speakers will give presentations on topics that include geometric analysis, and related fields, such as partial differential equations, general relativity, and geometric topology. Jason Cantarella (University of Georgia);   Meredith Casey (The Georga Institute of Technology);  Kirk Lancaster (Wichita State University); Junfang Li ( University of Alabama at Birmingham)  Jason Parsley (Wake Forest University);