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CU Buff football on the air Oct. 20

Oct 8th

Posted by Channel 1 Networks in CU Buff Football

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The Colorado @ USC football game on Saturday, Oct. 20, will kickoff at 3:00 p.m. Pacific Time (4:00 p.m. MDT) and will be televised on the Pac-12 Networks.

Next Week’s Pac-12 Schedule & Television Arrangements

Thursday, October 18, 2012

Oregon at Arizona State, 9:00 pm ET/6:00 pm PT, ESPN

Saturday, October 20, 2012

Stanford at California, 3:00 pm ET/Noon PT, FOX, kickoff scheduled for 12:05 pm PT

Colorado at USC, 6:00 pm ET/3:00 pm PT, Pac-12 Networks

Washington at Arizona, 10:00 pm ET/7:00 pm PT, Pac-12 Networks

Utah at Oregon State, 10:30 pm ET/7:30 pm PT, ESPNorESPN2 (determined after 10/13/12 games)

CU study: Graphene membranes may lead to enhanced natural gas production, less CO2 pollution

Oct 8th

Posted by Channel 1 Networks in CU News

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Engineering faculty and students at the University of Colorado Boulder have produced the first experimental results showing that atomically thin graphene membranes with tiny pores can effectively and efficiently separate gas molecules through size-selective sieving.

The findings are a significant step toward the realization of more energy-efficient membranes for natural gas production and for reducing carbon dioxide emissions from power plant exhaust pipes.

Mechanical engineering professors Scott Bunch and John Pellegrino co-authored a paper in Nature Nanotechnology with graduate students Steven Koenig and Luda Wang detailing the experiments. The paper was published Oct. 7 in the journal’s online edition.

The research team introduced nanoscale pores into graphene sheets through ultraviolet light-induced oxidative “etching,” and then measured the permeability of various gases across the porous graphene membranes.  Experiments were done with a range of gases including hydrogen, carbon dioxide, argon, nitrogen, methane and sulphur hexaflouride — which range in size from 0.29 to 0.49 nanometers — to demonstrate the potential for separation based on molecular size. One nanometer is one billionth of a meter.

“These atomically thin, porous graphene membranes represent a new class of ideal molecular sieves, where gas transport occurs through pores which have a thickness and diameter on the atomic scale,” said Bunch.

Graphene, a single layer of graphite, represents the first truly two-dimensional atomic crystal. It consists of a single layer of carbon atoms chemically bonded in a hexagonal “chicken wire” lattice — a unique atomic structure that gives it remarkable electrical, mechanical and thermal properties.

“The mechanical properties of this wonder material fascinate our group the most,” Bunch said. “It is the thinnest and strongest material in the world, as well as being impermeable to all standard gases.”

Those characteristics make graphene an ideal material for creating a separation membrane because it is durable and yet doesn’t require a lot of energy to push molecules through it, he said.

Other technical challenges will need to be overcome before the technology can be fully realized. For example, creating large enough sheets of graphene to perform separations on an industrial scale, and developing a process for producing precisely defined nanopores of the required sizes are areas that need further development. The CU-Boulder experiments were done on a relatively small scale.

The importance of graphene in the scientific world was illustrated by the 2010 Nobel Prize in physics that honored two scientists at Manchester University in England, Andre K. Geim and Konstantin Novoselov, for producing, isolating, identifying and characterizing graphene. Scientists see a myriad of potential for graphene as research progresses, from making new and better display screens and electric circuits to producing tiny biomedical devices.

The research was sponsored by the National Science Foundation; the Membrane Science, Engineering and Technology Center at CU-Boulder; and the DARPA Center on Nanoscale Science and Technology for Integrated Micro/Nano Electromechanical Transducers at CU-Boulder.

–

Startup Weekend Boulder Education

Oct 6th

Posted by Channel 1 Networks in Boulder Startup

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Boulder Channel 1 and Jann Scott attended this interesting Startup boot camp this weekend in Boulder. Here is a highlight video of what took place.

“Startup Weekend EDU is a 54-hour incubator where teachers, admins, IT professionals, and entrepreneurs take an idea to make Education better, and rapidly improve upon it throughout the weekend, in order to present a minimally viable product to a panel of judges by Sunday late afternoon. The goal is to make an application that improves or helps Education at any level (K-12 or higher ed). We are pleased to have a panel of prominent business and Education leaders as judges, including CEO & President of Colorado Technology Association, VP Operations for Educause, TechStars, and Charter School Growth Fund. Our mentors draw from Boulder and Denver, all of them from successful IT teams, businesses and education sectors. Early bird registration is $75 until Sept 15, or when tickets are gone! If you are looking to hone your education or entrepreneurship skills, be mentored by amazing people, and have a blast doing it, Startup Weekend EDU is for you!”

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