The current Corporate Average Fuel Economy standards create a financial incentive for auto companies to make bigger vehicles that are allowed to meet lower targets, according to a new University of Michigan study.
1) Computer hackers could lose a huge advantage. 2) Solar and wind energy could become more viable. 3) Something odd happens when you expose the element gadolinium to a strong magnetic field. 4) Carefully combining materials that shrink when heated with materials that expand creates a material unaffected by extreme temperature.
Technion researchers have discovered a way to generate an electrical field inside inorganic crystals (also known as quantum dotsO, making them more suitable for building an energy-efficient nanocrystal solar cell.
A new record-setting piezoelectric thin film material has been incorporated into silicon for energy harvesting and other MEMS applications.
Carbon savings can be squeezed from trees when wood not suitable for long-term building materials is used for bioenergy: Depending on the process used, ethanol from woody biomass emits less greenhouse gas than an equivalent amount of gasoline, between 70 percent and a little over 100 percent less.
Research at Iowa State University has led to discovery of a genetic method that can increase biomass in algae by 50 to 80 percent. The breakthrough comes from turning on certain genes in algae that increase the amount of photosynthesis in the plant, which leads to more biomass.
The new electrical storage devices called asymmetric capacitors can be recharged thousands of times. Now, a new design could make them cheaper, greener and lighter--a big advantage for power tools and consumer electronics.
Cutting out short auto trips and replacing them with mass transit and active transport would yield major health benefits, according to a study just published in the scientific journal Environmental Health Perspectives. The biggest health benefit was due to replacing half of the short trips with bicycle trips during the warmest six months of the year, saving about $3.8 billion per year from avoided mortality and reduced health care costs for conditions like obesity and heart disease.
Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are believed to be the first LEDs whose performance has been enhanced by the piezo-phototronic effect.
Taking a cue from Mother Nature, researchers at DOE's BioEnergy Science Center have undertaken a first-of-its-kind study of a naturally occurring phenomenon in trees to spur the development of more efficient bioenergy crops. Tension wood, which forms naturally in hardwood trees in response to bending stress, is known to possess unique features that render it desirable as a bioenergy feedstock.
Controversial, complicated and crucial - the development of biofuels on a commercial scale in the US poses an enormous challenge. A National Research Council study committee including Michigan Tech Professor Kathleen Halvorsen has released a report that helps define the questions and next steps.
Aeronautical engineers are devising ways to boost the efficiency of open-air refrigerated cases, which are increasingly common in supermarkets. Results could lower the energy use of existing cases by up to 15 percent -- potentially saving $100 million in electricity costs nationally each year.
UC Merced Professor Roland Winston and his team of student researchers have designed and developed a system that gathers and concentrates sunlight onto specially made collector tubes. The heat generated can then be transformed using existing technology for cooling, heating and other potential uses.
Iowa State researchers have developed technologies to efficiently produce, recover and separate sugars from the fast pyrolysis of biomass. That's a big deal because those sugars can be further processed into biofuels.
More than 10 years after electricity deregulation, the nuclear power industry has decreased greenhouse gas emissions by nearly 40 million metric tons of carbon dioxide and saved $2.5 billion a year as a result of operating more efficiently over the past decade, according to a new study.
A new "subconscious mode" for smartphones and other WiFi-enabled mobile devices could extend battery life by as much as 54 percent for users on the busiest networks.
Scientists at Rensselaer Polytechnic Institute are working to optimize a promising new nanomaterial called nanoblades for use in hydrogen storage. During their testing of the new material, they have discovered that it can store and release hydrogen extremely fast and at low temperatures compared to similar materials. Another important aspect of the new material is that it is also rechargeable. These attributes could make it ideal for use in onboard hydrogen storage for next-generation hydrogen or fuel cell vehicles.
Virginia Tech and U.S. Department of Agriculture researchers have shown that transgenic yeast used during fermentation of barley will help modify mycotoxin in the animal feed that is a byproduct of ethanol production.
Batteries could get a boost from a discovery that increases power, energy density and safety while dramatically reducing charge time.
By looking to Mother Nature for solutions, researchers have identified a promising new binder material for lithium-ion battery electrodes that could not only boost energy storage, but also eliminate the use of toxic compounds now used in manufacturing the components.
Although the burning of natural gas emits far less carbon dioxide than coal, a new study by an NCAR researcher concludes that a greater reliance on natural gas would fail to significantly slow down climate change. Coal releases more carbon dioxide, but it also releases particles that cool the planet.
A new study of dust-like particles of soot in the air -- now emerging as the second most important -- but previously overlooked -- factor in global warming provides fresh evidence that reducing soot emissions from diesel engines and other sources could slow melting of sea ice in the Arctic faster and more economically than any other quick fix, a scientist reported here today.
Scientists from the University of Kentucky and the University of Louisville have determined that an inexpensive semiconductor material can be "tweaked" to generate hydrogen from water using sunlight.
Panda poop contains bacteria with potent effects in breaking down plant material in the way needed to tap biomass as a major new source of "biofuels" produced not from corn and other food sources, but from grass, wood chips and crop wastes, scientists reported today at the 242nd National Meeting & Exposition of the American Chemical Society (ACS).
The first nuclear power plant being considered for production of electricity for manned or unmanned bases on the Moon, Mars and other planets may really look like it came from outer space.