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wave propagation in Hamilton Systems

Submitted by Teng zhang on

I am a junior graduate student now, and very interesting in wave motion. My advisor Prof. Zhong wanxie and his PHD student qiang Gao have developed a precise numerical technique to solve the Rayleigh wave frequency equation, which can avoid the missing root. They did a systematic work involving surface wave propagation in a transversely isotropic stratified solid resting on an elastic semi-infinte space, wave propagation in the anisotropic layered media and the propagation of stationary and non-stationary random waves in a viscoelastic, transversely isotropic and stratified half space.

Effects of grain boundary adhesion and grain size on ductility of thin metal films on polymer substrates

Submitted by Teng Li on

We study the effects of grain boundary adhesion and grain size on the ductility of thin metal films well bonded to polymer substrates, using finite element method. It is shown that the ductility of polymer-supported metal films increases approximately linearly as the grain boundary adhesion increases, and as the grain size decreases. A rule-of-thumb estimate of the ductility of polymer-supported metal films agrees well with the simulation results.

In press, Scripta Materialia, 2008 

Should we be patenting our research

Submitted by ericmock on

I recently stumbled across the patent that is attached to this post.  It's title 'Simulation of String Vibration' obviously caught my attention.  Hoping there was more to it, I downloaded and read it.  To save you the time, I'll summarize.  It basically reads like a conference paper that would probably not get accepted into any respectable journal.  What is patent is a little more specific than the title would imply but nothing that is any more than a trivial extension of existing research.  Essentially the patent describes a way (finite elements) to simulate t