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The Lead

3-D Printing: A New Manufacturing Staple

April 15, 2014 9:24 am | by Lindsay Hock, Managing Editor | Stratasys, Ltd. | Articles | Comments

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.

Scale model World War II craft takes flight with fuel from the sea

April 7, 2014 6:06 pm | News | Comments

Navy researchers have recently demonstrated...

Wire inspection: As fast as a world-class sprinter

April 7, 2014 1:39 pm | News | Comments

Pipes, rails, and wires are typically manufactured...

Big data keeps complex production running smoothly

March 27, 2014 9:25 am | News | Comments

Industrial plants must function effectively. Remedying production downtimes and...

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Micro systems with big commercial potential featured in SPIE journal

March 26, 2014 9:28 am | News | Comments

Commercial demand is driving high-tech research and development in micro-optoelectromechanical systems (MOEMS) for diverse applications such as space exploration, wireless systems, and healthcare. A new special section on Emerging MOEMS Technology and Applications in the current issue of the Journal of Micro/Nanolithography, MEMS, and MOEMS discusses these recent breakthrough achievements.

Algae may be a potential source of biofuels, biochemicals even in cool climate

March 20, 2014 12:22 pm | News | Comments

They need warmth to grow, but algae don’t necessarily need light. Experts in Finland, where warmer weather is rare, say it makes sense to link algae cultivation to industrial operations where residual heat is available to heat algae cultivation ponds or reactors. Recent research there shows that such an approach could be profitably implemented.

Amsterdam canal house built with 3-D printer

March 14, 2014 9:58 am | by Toby Sterling, Associated Press | News | Comments

Hundreds of years after wealthy merchants began building the tall, narrow brick houses that have come to define Amsterdam's skyline, Dutch architects are updating the process for the 21st century: fabricating pieces of a canal house out of plastic with a giant 3-D printer and slotting them together like oversized Lego blocks.

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GE introduces a new technology for home refrigeration

March 14, 2014 9:45 am | News | Comments

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.

Imec achieves record 8.4% efficiency in fullerene-free organic solar cells

March 11, 2014 9:50 am | News | Comments

Organic solar cells are a compelling thin-film photovoltaic technology in part because of their compatibility with flexible substrates and tunable absorption window. Belgium-based chipmaker imec has set a new conversion efficiency record of 8.4% for this type of cell by developing fullerene-free acceptor materials and a new multilayer semiconductor device structure.

Programmable material: Sheet metal that never rattles

March 5, 2014 4:52 pm | News | Comments

Researchers from Empa and ETH Zurich have succeeded in producing a prototype of a vibration-damping material that could change the world of mechanics. The material of the future is not only able to damp vibrations completely; it can also specifically conduct certain frequencies further.

Nanoparticle networks' design enhanced by theory

February 26, 2014 5:22 pm | by Anne Ju, Cornell Univ. | News | Comments

Cornell Univ. researchers have recently led what is probably the most comprehensive study to date of block copolymer nanoparticle self-assembly processes. The work is important, because using polymers to self-assemble inorganic nanoparticles into porous structures could revolutionize electronics.

New record set for data-transfer speeds

February 25, 2014 1:31 pm | News | Comments

Researchers at IBM have set a new record for data transmission over a multimode optical fiber, a type of cable that is typically used to connect nearby computers within a single building or on a campus. The data was sent at a rate of 64 Gb/s over a cable 57-m long using a type of laser called a vertical-cavity surface-emitting laser. This rate is 2.5 times faster than the capabilities of today's typical commercial technology.

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A step closer to the photonic future

February 20, 2014 3:01 am | News | Comments

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.

A stretchable highway for light

February 20, 2014 2:53 am | News | Comments

A team of Belgian researchers have made what may be the first optical circuit that uses interconnections that are not only bendable, but also stretchable. These new interconnections, made of a rubbery transparent material called PDMS, guide light along their path even when stretched up to 30% and when bent around an object the diameter of a human finger.

3-D-stacked hybrid SRAM cell to be built by European scientists

February 7, 2014 9:49 am | News | Comments

European scientists from both academia and industry have begun an ambitious new research project focused on an alternative approach to extend Moore's Law. The research project, coordinated IBM Research in Zurich and called COMPOSE³, is based on the use of new materials to replace today's silicon, and on taking an innovative design approach where transistors are stacked vertically, known as 3-D stacking.

NASA boards the 3-D manufacturing train

February 6, 2014 1:01 pm | by Lori Keesey, NASA's Goddard Space Flight Center | News | Comments

Additive manufacturing, or 3-D printing, offers a compelling alternative to more traditional manufacturing approaches at NASA, where the need for highly custom­ized spacecraft and instrument components is quite high. The agency has recently launched a number of formal programs to prototype new 3-D printed components, including rocket engine injectors, and 3-D printers for use in space.

Finding: Graphene ribbons are highly conductive at room temperature

February 6, 2014 12:40 pm | News | Comments

An international team of researchers from France and the United States have devised an entirely new way to synthesize graphene ribbons with defined, regular edges, allowing electrons to flow freely through the material. Demonstrating this phenomenon at room temperature, the material was shown to permit electron flow up to 200 times faster than through silicon.

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The Laser-Sintering Effect

February 6, 2014 10:41 am | by Lindsay Hock, Managing Editor | Articles | Comments

Exposed on a vertical face, rock climbers rely on their instincts and experience just as much as their equipment for survival. Depending on the climb, an assortment of gear is used for a successful ascension to the top—carabineers, cams, harnesses, specialized climbing shoes. Different styles of footwear are used for finessing cracks, balancing on small toeholds or smearing sloping slabs, the choice depends on individual preference.

Stratasys introduces world’s first color multi-material 3-D printer

January 28, 2014 1:39 pm | News | Comments

Stratasys, a manufacturer of 3-D printers and materials for personal use, prototyping and production, has announced the launch of the ground-breaking Objet500 Connex3 Color Multi-material 3-D Printer, the first and only 3-D printer to combine colors with a variety of photopolymer 3-D printed materials.

Flexible, transparent conductor brings foldable TVs closer to reality

January 28, 2014 11:35 am | News | Comments

Univ. of Houston researchers have developed a new stretchable and transparent electrical conductor, bringing the potential for a fully foldable cell phone or a flat-screen television that can be folded and carried under your arm closer to reality.  The researchers report that their gold nanomesh electrodes, produced by the novel grain boundary lithography, increase resistance only slightly, even at a strain of 160%.

Researcher develops energy-dense sugar battery

January 21, 2014 11:34 am | News | Comments

A Virginia Tech research team has developed a battery that runs on sugar, using a non-natural synthetic enzymatic pathway that strip all charge potentials from the sugar. While other sugar batteries have been developed, this one has an energy density an order of magnitude higher than others, allowing it to run longer before needing to be refueled.

3-D printing set to break out of niche

January 13, 2014 1:15 pm | by Peter Svensson, AP Technology Writer | News | Comments

Based on some of the printing technologies on display at the International CES gadget show in Las Vegas, the question is not whether everyone’s home will someday have a 3-D printer. The question is which rooms will have one: the garage, the kitchen or the wardrobe? Possibly all three. Startups are showcasing printers than can create food, robotics and even clothing in just minutes from inexpensive raw materials.

Eye-catching electronics

January 8, 2014 2:03 pm | by Peter Rüegg, ETH Zürich | News | Comments

Researchers in Switzerland are developing electronic components that are thinner and more flexible than before. They can even be wrapped around a single hair without damaging the electronics. This opens up new possibilities for ultra-thin, transparent sensors that are literally easy on the eye.

High-temperature sensor technologies to increase power plant efficiency

January 7, 2014 9:27 am | News | Comments

The sensors team at the National Energy Technology Laboratory is working on sensor technologies to enable embedded gas sensing at high temperature. Through a combination of theoretical simulations and experiments, the team has demonstrated that transparent conducting oxides such as aluminum-doped zinc oxide show significant promise for high-temperature optical gas sensing in the near‑infrared wavelength range.

Ultra-thin tool heating improves injection molding

January 2, 2014 11:58 am | News | Comments

To manufacture plastic parts with high-end surfaces, the entire forming tool is heated to 110 C using a technique known as variothermic tempering. To retrieve the finished plastic part, the mold must be cooled by up to 30 C, consuming lots of energy. Researchers have now developed a new kind of tempering technique that is up to 90% more energy efficient than variothermic tempering approaches.

Researchers grow liquid crystal “flowers” that can be used as lenses

December 23, 2013 11:17 am | News | Comments

In earlier studies, a team from the Univ. of Pennsylvania produced nanoscale grids and rings of “defects,” or useful disruptions in the repeating patterns found in liquid crystals. Their latest study adds a more complex pattern out of an even simpler template: A 3-D array in the shape of a flower. This advances the use of liquid crystals as a medium for assembling structures.

To clean up coal, Obama pushes more oil production

December 23, 2013 10:31 am | by Dina Cappiello, Associated Press | News | Comments

America's newest, most expensive coal-fired power plant is hailed as one of the cleanest on the planet, thanks to government-backed technology that removes carbon dioxide and keeps it out of the atmosphere. But once the carbon is stripped away, it will be used to do something that is not so green at all. It will extract oil.

Jet-propelled wastewater treatment

December 19, 2013 7:55 pm | News | Comments

Researchers from the Max Planck Institute for Intelligent Systems in Stuttgart have developed a new method for the active degradation of organic pollutants in solution by using swimming microengines. These tiny “engines” are made from platinum and iron and are highly efficient in removing organic pollutants from water using hydrogen peroxide.

Cells from the eye inkjet printed for the first time

December 18, 2013 2:05 pm | News | Comments

A group of researchers from the U.K. have used inkjet printing technology to successfully print cells taken from the eye for the very first time. The breakthrough, detailed in Biofabrication, could lead to the production of artificial tissue grafts made from the variety of cells found in the human retina and may aid in the search to cure blindness.

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