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Archives for : agosto2014

Solar power with a view: Transparent luminescent solar concentrators

Researchers have developed a new type of solar concentrator that when placed over a window creates solar energy while allowing people to actually see through the window. It is called a transparent luminescent solar concentrator and can be used on buildings, cell phones and any other device that has a flat, clear surface.

 

Research in the production of energy from solar cells placed around luminescent plastic-like materials is not new. These past efforts, however, have yielded poor results — the energy production was inefficient and the materials were highly colored.

 

“No one wants to sit behind colored glass,” said Lunt, an assistant professor of chemical engineering and materials science. “It makes for a very colorful environment, like working in a disco. We take an approach where we actually make the luminescent active layer itself transparent.”

 

The solar harvesting system uses small organic molecules developed by Lunt and his team to absorb specific nonvisible wavelengths of sunlight. “We can tune these materials to pick up just the ultraviolet and the near infrared wavelengths that then ‘glow’ at another wavelength in the infrared,” he said.

The “glowing” infrared light is guided to the edge of the plastic where it is converted to electricity by thin strips of photovoltaic solar cells. “Because the materials do not absorb or emit light in the visible spectrum, they look exceptionally transparent to the human eye,” Lunt said.

Source: www.sciencedaily.com

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A Scalable and Accurate Targeted Gene Assembly Tool (SAT-Assembler) for Next-Generation Sequencing Data

by Yuan Zhang, Yanni Sun, James R. Cole
Gene assembly, which recovers gene segments from short reads, is an important step in functional analysis of next-generation sequencing data.

Source: www.ploscompbiol.org

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AliView: a fast and lightweight alignment viewer and editor for large data sets.

Summary: AliView is an alignment viewer and editor designed to meet the requirements of next generation sequencing era phylogenetic datasets. AliView handles alignments of unlimited size in the formats most commonly used, i.e. Fasta, Phylip, Nexus, Clustal and MSF. The intuitive graphical interface makes it easy to inspect, sort, delete, merge and realign sequences as part of the manual filtering process of large data sets. AliView also works as an easy to use alignment editor for small as well as large data sets.

Availability: AliView is released as open-source software under the GNU General Public License, version 3.0 (GPLv3), and is available at GitHub (www.github.com/AliView). The program is cross-platform and extensively tested on Linux, Mac OS X and Windows systems. Downloads and help are available at http://ormbunkar.se/aliview

Contact: anders.larsson@ebc.uu.se

Source: bioinformatics.oxfordjournals.org

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MIT ranking of 10 New Breakthrough Technologies in 2014

Technology news is full of incremental developments, but few of them are true milestones. Here we’re citing 10 that are. These advances from the past year all solve thorny problems or create powerful new ways of using technology. They are breakthroughs that will matter for years to come.

Agricultural Drones

Relatively cheap drones with advanced sensors and imaging capabilities are giving farmers new ways to increase yields and reduce crop damage.

Ultraprivate Smartphones

New models built with security and privacy in mind reflect the Zeitgeist of the Snowden era.

Brain Mapping
A new map, a decade in the works, shows structures of the brain in far greater detail than ever before, providing neuroscientists with a guide to its immense complexity.

Neuromorphic Chips
Microprocessors configured more like brains than traditional chips could soon make computers far more astute about what’s going on around them.

Genome Editing
The ability to create primates with intentional mutations could provide powerful new ways to study complex and genetically baffling brain disorders.

Microscale 3-D Printing
Inks made from different types of materials, precisely applied, are greatly expanding the kinds of things that can be printed.

Mobile Collaboration
The smartphone era is finally getting the productivity software it needs.

Oculus Rift
Thirty years after virtual-reality goggles and immersive virtual worlds made their debut, the technology finally seems poised for widespread use.

Agile Robots
Computer scientists have created machines that have the balance and agility to walk and run across rough and uneven terrain, making them far more useful in navigating human environments.

Smart Wind and Solar Power
Big data and artificial intelligence are producing ultra-accurate forecasts that will make it feasible to integrate much more renewable energy into the grid.

Source: www.technologyreview.com

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How A Computer Algorithm Predicted West Africa’s Ebola Outbreak Before It Was Announced

The Ebola outbreak in West Africa is focusing a spotlight on a unique online tool run by experts in Boston that flagged a “mystery hemorrhagic fever” in forested areas of southeastern Guinea nine d…

Source: publichealthwatch.wordpress.com

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How to transform the Raspberry Pi into your personal cloud, for secure file … – ITProPortal

ITProPortal
How to transform the Raspberry Pi into your personal cloud, for secure file …

Source: www.itproportal.com

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