Engineering articlesCheaper mobile phones or GPS and with enhanced performance
In his PhD thesis the Pamplona engineer, Francisco Falcone Lanas, has put forward various structures based on what are known as left-handed metamaterials, materials that can be used to make smaller mobile phones, aerials or GPS and which have better specifications and performance. This is the first PhD defended in the world on applications of left-handed metamaterials.
Testing crash avoidance system
Researchers at the National Institute of Standards and Technology (NIST) are assisting the Department of Transportation (DOT) by developing tests for a crash avoidance system that could substantially reduce the number of rear-end, road departure and lane change accidents. About 1,836,000 such accidents occur annually, or 48 percent of police-reported cases a year.
Putting pedestrian safety in the driving seat
Every year in the European Union there are over 9,000 deaths and 200,000 injured victims in road accidents in which pedestrians and cyclists collide with a car. Hoping to improve on these grim statistics, is a cutting-edge sensing system that could ultimately help to save the lives of vulnerable road users (VRUs).
Newer football helmet design may reduce incidence of concussions in high school players
Newer football helmet technology and design may reduce the incidence of concussions in high school football players, according to results from the first phase of a three-year study by the University of Pittsburgh Medical Center's (UPMC) Sports Medicine Concussion Program.
Ethanol can replace gasoline with big energy savings
Putting ethanol instead of gasoline in your tank saves oil and is probably no worse for the environment than burning gasoline, according to a new analysis by researchers at the University of California, Berkeley.
Mystery of metallic glass is cracked by jh engineers
Using state-of-the-art lab techniques and powerful computer simulations, Johns Hopkins researchers have discovered how atoms pack themselves in unusual materials known as metallic glasses. Their findings should help scientists better understand the atomic scale structure of this material, which is used to make sports equipment, cell phone cases, armor-piercing projectiles and other products.
New sensor improves fish counts
Researchers at MIT have found a new way of looking beneath the ocean surface that could help definitively determine whether fish populations are shrinking.
New material brings hydrogen fuel, cheaper petrochemicals closer to reality
A rubbery material that can purify hydrogen efficiently in its most usable form for fuel cells and oil refining has been developed by a chemical engineering group at The University of Texas at Austin.
New design for transistors powered by single electrons
Scientists have demonstrated the first reproducible, controllable silicon transistors that are turned on and off by the motion of individual electrons.
Titania nanotubes create potentially efficient solar cells
A solar cell, made of titania nanotubes and natural dye, may be the answer to making solar electricity production cost-effective, according to a Penn State researcher.
Researchers fired up about battery alternative
Just about everything that runs on batteries -- flashlights, cell phones, electric cars, missile-guidance systems -- would be improved with a better energy supply. But traditional batteries haven't progressed far beyond the basic design developed by Alessandro Volta in the 19th century. Until now.
Adding nanotubes makes ordinary materials absorb vibration
A new study suggests that integrating nanotubes into traditional materials dramatically improves their ability to reduce vibration, especially at high temperatures. The findings could pave the way for a new class of materials with a multitude of applications, from high-performance parts for spacecraft and automobile engines, to golf clubs that don't sting and stereo speakers that don't buzz.
GT creates more compact, inexpensive spectrometer
Being the delicate optical instruments that they are, spectrometers are pretty picky about light. But Georgia Tech researchers have developed a technology to help spectrometers - instruments that can be used as the main parts of sensors that can detect substances present in even ultra-small concentrations - analyze substances using fewer parts in a wider variety of environments, regardless of lighting.
Engineer develops tiny, easily mass-produced motion sensor
A University of Florida engineer is the latest researcher to design a tiny, easy-to-manufacture motion sensor, a development that could help popularize the sensors as standard equipment in personal electronics, medical devices and other applications.
The nanoworld of corrosion
The effect of corrosion has an impact on about 3% of the world's Gross Domestic Product. From a positive point of view, however, chemical attack of metal surfaces may result into surface nano-structures with very interesting technological applications such as catalysts and sensors. Therefore, a better understanding of corrosion processes is required to both prevent it and make the most of it.
Spyware poses a significant threat on the Net
Spyware is alive and well on the Internet. That's the overall message of a new study by University of Washington computer scientists who sampled more than 20 million Internet addresses, looking for the programs that covertly enter the computers of unwitting Web surfers to perform tasks ranging from advertising products to gathering personal information, redirecting Web browsers, or even using a victim's modem to call expensive toll numbers.
High-tech sieve sifts for Hydrogen
Whether it's used in chemical laboratories or the fuel tanks of advanced automobiles, hydrogen is mostly produced from natural gas and other fossil fuels. However, to isolate the tiny hydrogen molecules, engineers must first remove impurities, and the currently available methods can require substantial equipment or toxic chemicals.
Captain Kirk's clone and the eavesdropper
Imagine Captain Kirk being beamed back to the Starship Enterprise and two versions of the Star Trek hero arriving in the spacecraft's transporter room. It happened 40 years ago in an episode of the TV science fiction classic, and now scientists at the University of York and colleagues in Japan have managed something strikingly similar in the laboratory -- though no starship commander was involved.
Chemical sensors to sniff out diseases in human breath
How do you create a sensor that can "sniff" out diseases based on the highly complex odors that come out of our mouths?
Snakebot could revolutionize search and rescue
A remote-controlled cylindrical robot with an onboard power supply could vastly improve recovery efforts in search and rescue missions, eventually even talking to victims trapped in rubble.