Blog posts

Lecture 5

Submitted by Henry Tan on Sun, 09/30/2007 - 15:48

Lecture 5

Lecture 5 outline:

back to MACE-11010 Engineering Mechanics

back to MACE-11010 Calendar

New York Times tears down the pay wall of TimesSelect

Submitted by Zhigang Suo on Sun, 09/30/2007 - 14:27

New York Times

Derivatives of a volume integral with singular kernel

Submitted by TO Quy Dong on Sun, 09/30/2007 - 08:49

research

micromechanics

green functions

Hi everybody,

In fact, I encounter this problem in my research and I would be grateful if someone can help. In micro mechanics, there are many problems concerning Green functions, e.g: the displacement is calculated from the distributed force in the domain, etc. Consider the following integral to determine the displacement field.

A fluid flow video

Submitted by Biswajit Banerjee on Sun, 09/30/2007 - 05:34

video

low Reynolds number

viscous flow

I just remembered another video that I had seen some time ago. Many of you have probably seen it but here it is for those who have not. (The original page where I found it is http://www.maniacworld.com/Laminar-Reverse-Flow.html.)

Prof. Pat McMurtry's explanation is:

Professor Liviu Librescu nominated for Presidential Medal of Freedom

Submitted by Anonymous (not verified) on Sat, 09/29/2007 - 15:27

mechanician

The governor of Virginia has asked President Bush to award the Presidential Medal of Freedom posthumously to Professor Liviu Librescu, a Holocaust survivor who died trying to save his students during the mass killings at Virginia Tech. Read more.

New NSF Initiative: Cyber-Enabled Discovery and Innovation (CDI)

Submitted by Anonymous (not verified) on Sat, 09/29/2007 - 14:51

research

NSF

proposal

via Ken P. Chong, National Science Foundation

The one-million-dollar Kavli Prizes in Nanoscience, Neuroscience and Astrophysics call for nominations

Submitted by Zhiliang Zhang on Sat, 09/29/2007 - 09:40

research

nanoscience

The Kavli Prize – three international awards for outstanding contributions to the fields of nanoscience, neuroscience and astrophysics – will be awarded for the first time in 2008. The Kavli Foundation has established these international awards to recognize seminal advances in scientific research. Each prize will consist of a scroll, a medal and a cash award of USD 1 million.

The Prizes will be awarded at a ceremony in Oslo, Norway, Fred Kavli’s native country, every two years, beginning in 2008. http://www.kavliprize.no/

A strained film grown on a vicinal substrate: Steps bunch or not to bunch?

Submitted by Zhenyu Zhang on Sat, 09/29/2007 - 01:54

research

thin film epitaxy

roughening via step bunching

When a strained film is grown on a vicinal substrate, the steps advance like a train when the deposited atoms have sufficient mobility to reach the step edges. However, as the steps advance, the strain-induced force monopoles associated with the steps cause the steps to attract to each other (J. Tersoff, PRL 74, 4962, (1995)), resulting in a thermodynamic instability of the steps in the form of step bunching (J. Tersoff, et al., PRL 75, 2730 (1995)).