Long dismissed as too impractical and expensive for everyday cars, fuel cell technology is getting a push into the mainstream by Toyota, the world's top-selling automaker. Buoyed by its success with electric-gasoline hybrid vehicles, Toyota is betting that drivers will embrace hydrogen fuel cells, an even cleaner technology. The company’s fuel cell car will go on sale before April next year.
You wouldn’t think that mechanical force could...
In wind farms across North America and Europe, sleek turbines equipped with state-of-the-art...
Lawrence Livermore National Laboratory researchers have developed a new and more efficient approach to a challenging problem in additive manufacturing—using selective laser melting, namely, the selection of appropriate process parameters that result in parts with desired properties.
Four major U.S. research universities have formed a technology consortium to improve the way in which educational content is shared across universities and ultimately delivered to students. Unizin will provide a common digital infrastructure that will allow member universities to work together to strengthen their traditional missions of education and research using the most innovative technology available today.
When concrete shells are constructed, they usually have to be supported by elaborate timber structures. This is one reason why such structures are now rarely built. In Austria, engineers have developed a new construction method that does not require any solid supporting structure at all. Instead, an air cushion is inflated below a concrete slab, bending the concrete and quickly forming a self-supporting shell.
Superlyophobic surfaces are simultaneously repellant for almost any liquid and exhibit high contact angles and low flow resist. But the demanding and usually expensive fabrication remains a bottleneck for further development. Researchers in Shenzhen, China, however, have now formulated a facile and inexpensive microfabrication method that uses polymers to help transfer the superlyophobic structures to curable materials.
Engineers at Oregon State University have successfully shown that a continuous flow reactor can produce high-quality nanoparticles by using microwave-assisted heating. This is essentially the same force that heats up leftover food with such efficiency, but instead of warming up yesterday’s pizza, this concept may change the production of cell phones and televisions or improve solar energy systems.
Thirty years have passed since 3-D printers first appeared, but only recently have they hinted at a new era of manufacturing. The first working 3-D printer was created in 1984 by Chuck Hull of 3D Systems Corp. This early device, based on stereolithography, gave way to the first truly practical 3-D printing technology patented by the Massachusetts Institute of Technology in 1993.
Rapid Prototype + Manufacturing (rp+m) has formally partnered with Case Western Reserve Univ. to move its research and development arm to the university, joining forces with faculty researchers to develop new technologies in the growing additive manufacturing market, assist students in entrepreneurship and with research opportunities, and boost economic development in the region.
A route for constructing protein nanomachines engineered for specific applications may now be closer to reality. Recent research has described the development of new Rosetta software that enables the design of protein nanomaterials composed of multiple copies of distinct protein subunits, which arrange themselves into higher order, symmetrical architectures. It has been used to create a nanocage, built by itself from engineered components.
Bang & Olufsen is working with scientists in Denmark to develop a method for creating white aluminium surfaces. This has been exceedingly difficult for manufacturers because the existing technology used to color aluminium cannot be used to produce the color white because the molecules used to create “white” are too big. Rather than use pigments, then, researchers have a way to make it become white during the process.
The SuperDraco thruster, an engine that will power SpaceX’s Dragon spacecraft to orbit, has completed a test regimen held over the last month at SpaceX’s Rocket Development Facility in Texas. This qualification test involves a variety of conditions conditions including multiple starts, extended firing durations and extreme off-nominal propellant flow and temperatures.
Saudi Arabian-based petrochemical company SABIC and Cima NanoTech have announced the joint development of a new transparent conductive polycarbonate film. The collaboration leverages both Cima NanoTech’s proprietary SANTE nanoparticle technology and SABIC’s LEXAN film to produce a film that outperforms indium tin oxide by a factor of ten.
According to new research from Sweden, two aircraft engine concepts, a geared turbofan and an open rotor, can enable a significant reduction to aircraft fuel consumption. With an open rotor, the potential reduction is 15%. An open rotor engine generates most of the thrust from two counter-rotating propellers instead of a ducted fan. This enables a larger engine diameter and a higher propulsive efficiency.
A team in Texas has built the smallest, fastest and longest-running tiny synthetic motor to date. The reliable, 18,000-rpm device can convert electrical energy into mechanical motion on a scale 500 times smaller than a grain of salt. Made from three parts, the nanomotor can rapidly mix and pump biochemicals and move through liquids.
Culminating a ten-year development effort, Teraphysics Corp. scientists have demonstrated the emission of terahertz light by passing electron beams through a gold coil, smaller in diameter than a human hair, supported by a diamond structure. The detection of a terahertz signal provided proof of concept for Teraphysics’ suite of microfabricated vacuum electronic devices.
WinSun, a private company located in eastern China, has printed 10 full-size houses using a 3-D printer in the space of a day. The process utilizes quick-drying cement and construction water to build the walls layer-by-layer. The company used a system of four 10-m-by-6.6-m-high printers with multi-directional sprays to create the houses.
Thirty years have passed since 3-D printers first appeared, but only recently have they hinted at a new era of manufacturing. The first working 3-D printer was created in 1984 by Chuck Hull of 3D Systems Corp. This early device, based on stereolithography, gave way to the first truly practical 3-D printing, or “3DP”, technology patented by the Massachusetts Institute of Technology in 1993.
For nearly a century, electrophoretic deposition (EPD) has been used as a method of coating material by depositing particles of various substances onto the surfaces of various manufactured items. Since its earliest use, EPD has been used to deposit a wide range of materials onto surfaces. This process works well, but is limited. EPD can only deposit material across the entire surface and not in specific, predetermined locations, until now.
Inspired by the framework structure of bones and the shell structure of bees’ honeycombs, researchers in Germany have developed microstructured lightweight construction materials of extremely high stability. Although its density is below that of water, the material’s stability relative to its weight exceeds that of massive materials, such as high-performance steel or aluminum. It was created using 3-D laser writing.
For the past 100 years, the way your fridge preserved your food has been rooted in technology dating back to the mid-1800s, but that is about to change. GE researchers are developing a new magnetic refrigeration method that uses no refrigerants or compressors and is 20% more efficient than what is used today.
Researchers at Harvard Univ.'s Wyss Institute have developed a method to carry out large-scale manufacturing of everyday objects using a fully degradable bioplastic isolated from shrimp shells. The objects exhibit many of the same properties as those created with synthetic plastics, but without the environmental threat. It also trumps most bioplastics on the market today in posing absolutely no threat to trees.
An experiment at SLAC National Accelerator Laboratory’s x-ray laser has revealed the first atomic-scale details of a new technique that could point the way to faster data storage in smartphones, laptops and other devices. Researchers used pulses of specially tuned light to change the magnetic properties of a material with potential for data storage.
Using an inexpensive inkjet printer, Univ. of Utah electrical engineers produced microscopic structures that use light in metals to carry information. This new technique, which controls electrical conductivity within such microstructures, could be used to rapidly fabricate superfast components in electronic devices, make wireless technology faster or print magnetic materials.
Using an inexpensive 3-D printer, biomedical engineers have developed a custom-fitted, implantable device with embedded sensors that could transform treatment and prediction of cardiac disorders. An international team has created a 3-D elastic membrane made of a soft, flexible, silicon material that is precisely shaped to match the heart’s epicardium, or the outer layer of the wall of the heart.
Engineers at Oregon State Univ. have developed a new approach toward sustainable manufacturing that begins on the factory floor and tries to encompass the totality of manufacturing issues, including economic, environmental and social impacts. This approach, they say, builds on previous approaches that considered various facets of sustainability in a more individual manner.
Photonic devices are typically built using customized methods that make them difficult and expensive to manufacture. But at the Optical Fiber Communication Conference and Exposition next month, two new devices, a modulator and a tunable filter, are being presented that are not only as energy-efficient as some of the best devices around, but were built using standard CMOS process technology.
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