A new mathematical “shortcut” is speeding up molecular absorption calculations by a factor of five, so simulations that used to take 10 to 15 hours to compute can now be done in approximately 2.5 hours.
Subjecting complex metal mixtures called high-entropy alloys to extremely high pressures could lead to finer control over the arrangement of their atoms, which in turn can result in more desirable properties.
Pioneering technology makes OPEC countries prime regions to produce synthetic fuels. This could be a key asset in phasing out fossil fuels after the Paris Agreement, while also keeping some of the existing oil industry value chain intact.
The surface of minuscule water drops with a 100 nm size is surprisingly ordered, new research shows. At room temperature, the surface water molecules of these droplets have much stronger interactions than a normal water surface. The structural difference corresponds to a difference in temperature of -50°C, which may shed new light on a variety of atmospheric, biological and even geological processes.
First, diesel vehicles tainted their reputation with soot particles, then high nitric oxide emissions. So are owners of new gasoline cars environmentally friendly? Not always, says a new study scientists, some direct-injection gasoline engines emit just as many soot particles as unfiltered diesel cars did in the past. Particle filters can remedy this.
Scientists have built a structurally complex material from two simple building blocks that is the lowest-density metal-organic framework ever made. Directed by design rules developed by the scientists, uranium atoms and organic linkers self-assemble into a beautiful crystal -- a large, airy 3-D net of very roomy and useful pores. The pores are so roomy, in fact, that the scientists have nestled a large enzyme inside a pore -- no small feat.
The first total synthesis of dimeric securinega alkaloid (-)-flueggenine C was completed via an accelerated intermolecular Rauhut-Currier (RC) reaction. The research team succeeded in synthesizing the natural product by reinventing the conventional RC reaction.
By introducing defects into the perfect surface of graphene on silicon carbide, researchers have increased the capacity of the material to store electrical charge. This result increases our knowledge of how this ultrathin material can be used.
Chemists have developed a new method that allows them to map changes in the dynamics and structure of water molecules in the vicinity of solutes. With this technique, called terahertz calorimetry, they investigated the properties of the hydration shell of dissolved alcohol molecules. In the future, they want to also use the method for water mapping around more complex systems such as enzymes, which can be important for drug design.
An international team of researchers has uncovered the mechanism that allowed Volkswagen to circumvent US and European emission tests over at least six years before the Environmental Protection Agency put the company on notice in 2015 for violating the Clean Air Act. During a year-long investigation, researchers found code that allowed a car's onboard computer to determine that the vehicle was undergoing an emissions test.
New research investigated the full life cycle impact of one promising 'second-generation biofuel' produced from short-rotation oak. The study found that second-generation biofuels made from managed trees and perennial grasses may provide a sustainable fuel resource.
A new process triples the fraction of biomass converted to high-value products to nearly 80 percent, also tripling the expected rate of return for an investment in the technology from roughly 10 percent (for one end product) to 30 percent.
Cool pavements can help keep cities cool, right? Yes, but according to new research many reflective pavements have some unexpected drawbacks relative to conventional pavements when considering the entire life cycle of the materials.
Engineers have known for some time that calcium chloride salt, commonly used as deicer, reacts with the calcium hydroxide in concrete to form a chemical byproduct that causes roadways to crumble. A civil engineer is working on a new recipe for concrete, using cast-off products from furnaces, that can hold its own against the forces of chemical erosion.
A small, thin square of an organic plastic that can detect disease markers in breath or toxins in a building's air could soon be the basis of portable, disposable sensor devices. Scientists have now demonstrated a device that monitors ammonia in breath, a sign of kidney failure.
Athletes often have to compete late in the evening, when they are no longer able to perform at their best. However, researchers have shown that athletes who are exposed to blue light before competing can significantly increase their performance in the final spurt. The blue light had no impact on the athletes’ maximum performance.