Cause of LED Efficiency Droop Finally Revealed
An anonymous reader writes "Researchers from the University of California, Santa Barbara, in collaboration with colleagues at the École Polytechnique in France, have been able to prove the theory behind LED 'droop.' LED droop is the term for how LEDs emit less light when the amount of current being pushed through them goes above a certain level. 'The cost per lumen of LEDs has held the technology back as a viable replacement for incandescent bulbs for all-purpose commercial and residential lighting.' Now that we understand what causes this, we should start to see research go into technology to circumvent LED Droop. 'LEDs have enormous potential for providing long-lived high quality efficient sources of lighting for residential and commercial applications. The U.S. Department of Energy recently estimated that the widespread replacement of incandescent and fluorescent lights by LEDs in the U.S. could save electricity equal to the total output of fifty 1 GW power plants.'" A pre-print of the ...
Closing the Gap To Improve the Capacity of Existing Fiber Optic Networks
cylonlover writes "A team of researchers working through Australia's Centre for Ultrahigh Bandwidth Devices for Optical Systems (CUDOS) has developed data encoding technology that increases the efficiency of existing fiber optic cable networks. The researchers claim their invention, which packs the data channels closer together, increases the data capacity of optical networks to the point that all of the world's internet traffic could be transmitted via a single fiber."
Ask Slashdot: Is Making Government More Open and Connected a Good Idea?
Nerval's Lobster writes "For quite some time, there's been a theory drifting around that government can be made more open and efficient via the same crowdsourcing and social-networking tools that created such successes out of Facebook, Twitter and Kickstarter. In that spirit, numerous pundits and analysts have advocated the development of 'e-government' or 'government 2.0.' But what if the idea isn't as great as it seems? That's the angle embraced by Evgeny Morozov in a recent essay for The Baffler. Structured as a lengthy takedown of open-source advocate and O'Reilly Media founder Tim O'Reilly, the piece veers off to fire a few torpedoes at the idea of making government more responsive and transparent through technology (the latter being something O'Reilly readily advocates). 'One of the main reasons why governments choose not to offload certain services to the private sector is not because they think they can do a better job at innovation or efficiency,' Morozov writes, 'but because other ...
GreenLancer Raises $275k From Michigan Investors To Move Engineering To The Cloud
Don’t be mistaken. GreenLancer, while seemingly just another consulting firm, is a technology company utilizing the cloud for ambitious engineering projects. Instead of hiring a technology firm to plan, say a solar power array, GreenLancer collects all the pertinent data and farms out the work to contractors through its propitiatory and standardized platform. GreenLancer, a Detroit-based startup, currently focuses on designing solar energy products, but is looking to quickly expand into more alternative energy markets. And with the additional $275k it just raised from four Michigan funds, GreenLancer is quickly headed towards that goal. The startup got off the ground with $160k in seed funding from the owners of Mersino, a Michigan-based construction company. This latest funding comes from investors throughout Michigan: Bizdom (Detroit), Start Garden (Grand Rapids), Blue Water Angels (Midland) and Northern Michigan Angels (Traverse City). “GreenLancer has created a hybrid business model ...
Using Sensor Data For Smarter Urban Planning
kenekaplan writes "Sensor technology and data analytics are becoming foundations of urban planning. Herman D'Hooge, Intel engineer and University of Oregon Instructor, says that so-called smart cities aren't merely defined by optimized energy or transportation systems. 'The analytics behind them have become more sophisticated so you can make sense out of sensor data,' he said. 'If we start mixing data from the transportation system with data from the building system and the schools system and start meshing that data together, we may start seeing efficiencies and opportunity that weren’t visible within each of those silos'"
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