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271 Current news about the topic chemical engineering

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Analyzing gold and steel – rapidly and precisely

06-10-2014

Optical emission spectrometers are widely used in the steel industry but the instruments currently employed are relatively large and bulky. A novel sensor makes it possible to significantly reduce their size and, moreover, enables a more precise analysis in half the time previously required. Gold ...

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Sensor network tracks down illegal bomb-making

06-10-2014

A network of different sensors is to detect illicit production of explosives and improvised explosive devices (IEDs). Traces on doorknobs, in sewage or in the air will be detected by the sensors and the data will be fused in a command center. The Fraunhofer Institute for Applied Solid State ...

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Speed at its limits

Physicists develop ultra-fast semiconductor nano-lasers

01-10-2014

One thousand billion operations per second – this peak value is achieved by semiconductor nano-lasers developed by physicists at the University of Jena together with their colleagues from Imperial College London. As the researcher report in the current issue of the journal of „Nature Physics“, ...

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Graphene imperfections key to creating hypersensitive 'electronic nose'

24-09-2014

Researchers have discovered a way to create a highly sensitive chemical sensor based on the crystalline flaws in graphene sheets. The imperfections have unique electronic properties that the researchers were able to exploit to increase sensitivity to absorbed gas molecules by 300 times. The study ...

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Frost & Sullivan: Political Acceptance of Shale Gas as a Fuel Will Affect the Sensors Market for the Industry

Commercial viability of shale gas exploration and energy policies to influence opportunities for sensor manufacturers

28-08-2014

The shale gas industry holds great promise for sensors, but it is heavily dependent on government acceptance due to the numerous environmental concerns (earthquakes, pollution) associated with fracking. With governments still being undecided on whether hydraulic fracturing can be conducted, and ...

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New technique for measuring nanostructures

27-08-2014

Bringing two electrical insulators together to create an electrical superconductor: Anyone wishing to analyze such phenomena in nanostructures will soon come up against metrological limitations – unless a new method is used that Würzburg physicists have helped to develop. Modern electronic ...

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Rice nanophotonics experts create powerful molecular sensor

Sensor amplifies optical signature of single molecules about 100 billion times

23-07-2014

Nanophotonics experts at Rice University have created a unique sensor that amplifies the optical signature of molecules by about 100 billion times. Newly published tests found the device could accurately identify the composition and structure of individual molecules containing fewer than 20 ...

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Scientists develop force sensor from carbon nanotubes

04-07-2014

A group of researchers from Russia, Belarus and Spain, including Moscow Institute of Physics and Technology professor Yury Lozovik, have developed a microscopic force sensor based on carbon nanotubes. The device is described in an article published in Computational Materials Science. The ...

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Genetic approach helps design broadband metamaterial

07-05-2014

A specially formed material that can provide custom broadband absorption in the infrared can be identified and manufactured using "genetic algorithms," according to Penn State engineers, who say these metamaterials can shield objects from view by infrared sensors, protect instruments and be ...

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A new shape using rubber bands

Form not found in nature could spur creation of new molecules

25-04-2014

While setting out to fabricate new springs to support a cephalopod-inspired imaging project, a group of Harvard researchers stumbled upon a surprising discovery: the hemihelix, a shape rarely seen in nature. This made the researchers wonder: Were the three-dimensional structures they observed ...

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