Harvesting Electricity: Triboelectric Generators Capture Wasted Power

submitted by: nsf

With one stomp of his foot, Zhong Lin Wang illuminates a thousand LED bulbs--with no batteries or power cord. A professor at the Georgia Institute of Technology, Wang is using what’s technically known as the triboelectric effect to create surprising amounts of electric power by rubbing or touching two different materials together.

Source: Georgia Institute of Technology

Our Built Environment: It Takes Energy

submitted by: nsf

Can we rethink the way buildings use energy? John Ochsendorf, an Associate Professor of Civil and Environmental Engineering and Architecture at MIT, is working with his students to change the way buildings are made and how they consume energy.

Richard Cogdell - Bacterial Photosynthesis (MWV 069)

submitted by: MicrobeWorld
Richard Cogdell is the Director of the Institute for Molecular Cell and Systems Biology at the University of Glasglow, Scotland. Richard was led to a career in studying bacterial photosynthesis by a desire to learn and understand basic photosynthesis, he "wanted to know how natured worked." In 1995, Richard's research group, in collaboration with others, used protein crystallography to determine the three dimensional structure of a light-harvesting complex from the purple bacterium,...

Cancer prevention: what is energy balance?

submitted by: mdanderson
What is energy balance? It may sound like a strange term, but it basically means equalizing the amount of calories you take in with how much you burn through exercise, metabolism and body processes. Since obesity is one of the leading causes of cancer, Carrie Daniel-MacDougall, Ph.D., M.P.H. and Susan Schembre, Ph.D., R.D., both assistant professors in Cancer Prevention and Population Sciences at MD Anderson Cancer Center, study behaviors and biological processes associated with linking...

Approaches to Evaluating and Improving Lithium-Ion Battery Safety

submitted by: RASEIBoulder
As lithium-ion battery technologies mature, the size and energy of these systems continues to increase for emerging applications in transportation, grid storage, military use and aerospace. In fact, broadening the application space for lithium-ion batteries from the consumer electronics industries to these emerging markets increases their size from 1-50 Wh batteries for smart phones and laptops to >50 kWh for electric vehicles (EVs) and MWh scale for utility storage systems. As these...

Control of Power Inverters in Renewable Energy and Smart Grid Integration

submitted by: RASEIBoulder
Summary: Renewable energy sources have been regarded as the most promising means to solve the energy and environmental issues we face nowadays. How to integrate renewable energy into smart grids presents many challenging problems in control and power electronics. A well-integrated smart grid provides the backbone for the high-level functions of smart grids, such as wide-area control, communication, information, marketing and security. In this talk, an overview of the enabling technologies...

Science Nation - Spray-On Solar

submitted by: nsf
Have you seen those big, bulky, breakable photovoltaic cells that now collect the sun's rays? Well, what if solar energy could be harnessed using tiny collectors that could be spray painted on a roof, a wall or even a window? Find out more on this episode of Science Nation. For more Science Nation episodes, visit: http://www.nsf.gov/news/special_reports/science_nation/index.jsp

Science Nation - Solar Decathlon

submitted by: nsf
Teams design and build homes powered by the sun This past October, taking a walk on the National Mall in Washington, D.C., might have been more like taking a walk into the future. Twenty solar-powered homes were sprawled across the mall's west end, transforming it from a park into something that resembled an innovative new housing development. Park purists take note: the transformation was only temporary. The homes were part of a competition. "The Solar Decathlon is a competition for...

Science Nation - Waste to Energy

submitted by: nsf
All of us use water and in the process, a lot of it goes to waste. Whether it goes down drains, sewers or toilets, much of it ends up at a wastewater treatment plant where it undergoes rigorous cleaning before it flows back to the environment. The process takes time, money and a lot of energy. What if that wastewater could be turned into energy? It almost sounds too good to be true, but environmental engineer Bruce Logan is working on ways to make it happen. Most treatment plants already use...

Annika Mosier at the 2012 DOE JGI Genomics of Energy & Environment Meeting

submitted by: JGI

Annika Mosier from UC Berkeley on "In situ Expression of Acidic and Thermophilic Carbohydrate Active Enzymes by Filamentous Fungi" on March 22, 2012 at the 7th Annual Genomics of Energy & Environment Meeting in Walnut Creek, Calif.