Entries with tag university of illinois.

Stretchable Lithium-Ion Battery Demonstrated

US researchers have demonstrated a flexible, stretchable lithium-ion battery that can be recharged wirelessly, enabling its use in numerous applications needing flexible electronic components. Developed by Yonggang Huang, professor of civil and environmental engineering and mechanical engineering from Northwestern University and John A. Rogers, professor of materials science and engineering as well as chemistry at University of Illinois, the battery could power stretchable electronic devices such as implantable medical devices. They have demonstrated the battery powering an LED and continuing to work even when contorted in different ways. It is reportedly capable of stretching by up to 300 percent of its original size while continuing to function. The battery’s life is between eight and nine hours. The researchers plan to publish their work in Nature Communications.  (PhysOrg)(Northwestern University @ EurekAlert)

Legal Expert: Users’ Online Presence after Death Needs Federal Oversight

A University of Illinois Urbana-Champaign legal expert contends the US government needs to help regulate what happens to users’ online existence once they die. Professor Jason Mazzone, whose expertise is intellectual-property law, said that no US laws adequately protect users or their intellectual property once they die and that most social-networking sites concoct their own policies concerning content belonging to and created by users who have passed away. Facebook, for example, takes down and archives all a user’s uploaded content upon their death but lets those with “friend” status post condolences to their account. Mazzone said individuals “have privacy and copyright interests in materials they post to social-networking sites.” The current situation, he contended, “is a little bit like letting the bank decide what to do with your money after you die.” He said enacting a federal law could require social-networking sites to give users some control over what happens to their accounts and how to legally dispose of their digital assets, which have value to family and friends. He published a paper on the subject in the North Carolina Law Review. (PhysOrg)(University of Illinois)(North Carolina Law Review)

US National Lab Models Rocket Propellant Fires


A new US presidential directive has required Sandia National Laboratories researchers to use computer modeling to conduct a predictive, public-risk analysis of accidental fires that might occur during the launch of NASA space missions carrying radioactive materials. They say they analysis will combine experimental test data with multiphysics, high-fidelity models, an approach not previously attempted. The researchers are building an interface that will let them update, add different predictive features to, and validate their overall model. They are now evaluating the Rocstar software code that University of Illinois scientists developed and that may help with the modeling. (PhysOrg)(Sandia National Laboratories)
 

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