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Getting to know super-Earths

October 16, 2014 10:56 am | by Kimm Fesenmaier, Caltech | News | Comments

The findings of NASA’s planet-hunting Kepler spacecraft suggest that the most common exoplanets are those that are just a bit larger than Earth but smaller than Neptune. These so-called super-Earths, which do not exist in our own solar system, have attracted the attention of astronomers, who have been trying to determine the composition of the closest of these planets. However, an unexpected barrier is blocking their progress.

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Light-curable Adhesives

October 16, 2014 10:45 am | Product Releases | Comments

At the 2014 Assembly Show in Rosemont, Ill., Oct. 29-30, Dymax Corp. will showcase a tack-free, moisture- and chemical-resistant FIP/CIP gasket, SpeedMask resins with patented See-Cure technology, and a plastic bonder with Ultra-Red fluorescing technology.  

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AC Tachometer Generator

October 16, 2014 10:42 am | Product Releases | Comments

Marsh Bellofram Corp. has introduced its WESTCON Model 758-9905000, an industrial AC tachometer generator, designed for high-reliability 24/7 jet and diesel engine rotational speed measurements within voltage responsive systems.

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Computing with magnetic “tornadoes”

October 16, 2014 10:27 am | News | Comments

Magnetic materials store the vast majority of the 2.7 zettabytes of data that are currently held worldwide. In the interest of efficiency, scientists have begun to investigate whether magnetic materials can also be used to perform calculations. In a recent paper, researchers in the U.K. detail their plan to harness swirling “tornadoes” of magnetization in nanowires to perform logic functions. They plan to soon build prototypes.

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Magnetic mirrors enable new technologies by reflecting light in uncanny ways

October 16, 2014 10:18 am | News | Comments

As in Alice’s journey through the looking-glass to Wonderland, mirrors in the real world can sometimes behave in surprising and unexpected ways, including a new class of mirror that works like no other. Scientists have demonstrated, for the first time, a new type of mirror that forgoes a familiar shiny metallic surface and instead reflects infrared light by using an unusual magnetic property of a non-metallic metamaterial.

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A simple and versatile way to build three-dimensional materials of the future

October 16, 2014 10:14 am | News | Comments

Researchers in Japan have developed a new yet simple technique called "diffusion driven layer-by-layer assembly" to construct graphene into porous 3-D structures for applications in devices such as batteries and supercapacitors. The new method borrowed a principle from polymer chemistry, known as interfacial complexation, to allow graphene oxide to form a stable composite layer with an oppositely charged polymer.

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Scientists synthesize a two-element atomic chain inside a carbon nanotube

October 16, 2014 10:05 am | News | Comments

Researchers at Japan’s National Institute of Advanced Industrial Science and Technology have synthesized an atomic chain in which two elements, cesium and iodine, are aligned alternately inside a carbon nanotube. Analyzed using electron microscopy and spectroscopy, the invention could shed light on the adsorption mechanisms of radioactive elements.

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Project to detect possible damages in aircraft parts early in process

October 16, 2014 9:21 am | News | Comments

Univ. of Texas at Arlington engineering professors have received an Air Force grant to examine the material surface at the micro- and nano-scale level that will provide clues for predicting fatigue in aircraft parts. The new approach will rely on a scanning whitelight interferometric surface profiler integrated with a compact mechanical tester and an electron backscatter diffraction module to deliver in-situ 3-D surface profiling.

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Global natural gas boom alone won’t slow climate change

October 16, 2014 9:14 am | by Mary Beckman, Pacific Northwest National Laboratory | News | Comments

A new analysis of global energy use, economics and the climate shows that without new climate policies, expanding the current bounty of inexpensive natural gas alone would not slow the growth of global greenhouse gas emissions worldwide over the long term, according to a study. Because natural gas emits half the carbon dioxide of coal, many people hoped the recent natural gas boom could help slow climate change.

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Research reveals unique capabilities of 3-D printing

October 16, 2014 8:51 am | by Morgan McCorkle, Oak Ridge National Laboratory | News | Comments

Researchers at Oak Ridge National Laboratory have demonstrated an additive manufacturing method to control the structure and properties of metal components with precision unmatched by conventional manufacturing processes. The researchers demonstrated the method using an ARCAM electron beam melting system (EBM), in which successive layers of a metal powder are fused together by an electron beam into a 3-D product.

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Biological sample prep time cut dramatically

October 16, 2014 8:40 am | by Stephen P Wampler, Lawrence Livermore National Laboratory | News | Comments

When Lawrence Livermore National Laboratory researchers invented the field of biological accelerator mass spectrometry (AMS) in the late 1980s, the process of preparing the samples was time-consuming and cumbersome. Physicists and biomedical researchers used torches, vacuum lines, special chemistries and high degrees of skill to convert biological samples into graphite targets that could then be run through the AMS system.

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Study reveals optimal particle size for anticancer nanomedicines

October 16, 2014 8:10 am | News | Comments

Nanomedicines consisting of nanoparticles for targeted drug delivery to specific tissues and cells offer new solutions for cancer diagnosis and therapy. Understanding the interdependency of physiochemical properties of nanomedicines, in correlation to their biological responses and functions, is crucial for their further development of as cancer-fighters.

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Ultrasound reveals secrets of deadly abdominal aortic aneurysms

October 16, 2014 7:56 am | by Emil Venere, Purdue Univ. | News | Comments

Researchers are exploring the usefulness of ultrasound imaging to study dangerous abdominal aortic aneurysms, a bulging of the aorta that is usually fatal when it ruptures and for which there is no effective medical treatment. Abdominal aortic aneurysms are the 13th leading cause of death in the U.S., killing about 15,000 annually.

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Big step in battling bladder disease

October 16, 2014 7:46 am | by Rob Matheson, MIT News Office | News | Comments

The millions of people worldwide who suffer from the painful bladder disease known as interstitial cystitis (IC) may soon have a better, long-term treatment option, thanks to a controlled-release, implantable device invented by Massachusetts Institute of Technology Prof. Michael Cima and other researchers. The device is a pretzel-shaped silicone tube that could be inserted into the bladder, slowly releasing lidocaine over two weeks.

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A brighter design emerges for low-cost, “greener” LED light bulbs

October 15, 2014 2:52 pm | News | Comments

The phase-out of traditional incandescent bulbs in the U.S. and elsewhere, as well as a growing interest in energy efficiency, has given LED lighting a sales boost. That trend could be short-lived as key materials known as rare earth elements become more expensive. Scientists at Rutgers Univ., however, have now designed new materials for making household LED bulbs without using these ingredients.

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