News tagged with light emission

All set and ready to glow

A new technique that paves the way for manufacturing affordable LED light bulbs is to be exploited in the UK, in a deal that researchers say could have a dramatic impact on carbon emissions.

Technology / Energy & Green Tech

created Feb 07, 2012 | popularity 5 / 5 (1) | comments 1

Columbia engineers map energy use in NYC buildings

(PhysOrg.com) -- Cities across the globe are trying to develop plans to cut down their energy consumption and lower their carbon footprint by reducing the associated greenhouse gas emissions. While initial efforts have focused ...

Technology / Energy & Green Tech

created Jan 31, 2012 | popularity 3 / 5 (1) | comments 1 | with audio podcast

Fuel economy of new vehicles slipped in December

(PhysOrg.com) -- After two months of increases, the average fuel economy of all new vehicles sold in the United States fell by a half mile per gallon last month, say researchers at the University of Michigan ...

Technology / Energy & Green Tech

created Jan 11, 2012 | popularity 5 / 5 (3) | comments 0

Vehicles of 2017 could get 54.5 mpg

One of the most powerful points in Thomas Friedman's book, "Hot, Flat and Crowded," was that when President Ronald Reagan rolled back fuel efficiency standards for American vehicles, it wasted an amount of petroleum equivalent ...

Technology / Energy & Green Tech

created Nov 21, 2011 | popularity 3.6 / 5 (5) | comments 9

Fuel economy of new vehicles is up for the first time since last spring

(PhysOrg.com) -- For the first time in seven months, average fuel economy of all new vehicles sold in the United States is on the rise, say researchers at the University of Michigan Transportation Research ...

Technology / Energy & Green Tech

created Nov 18, 2011 | popularity 5 / 5 (1) | comments 2

Novel nanocrystals with advanced optical properties developed for use as luminescent biomarkers

Upconversion emission materials are ideal for bioimaging due to its effectiveness as contrast agents for the detection of cancer cells, more so when the background emission of non-cancerous tissues can be minimised. These ...

Nanotechnology / Nanomaterials

created Nov 14, 2011 | popularity not rated yet | comments 0

Saturn's moon Enceladus spreads its influence

(PhysOrg.com) -- Chalk up one more feat for Saturn's intriguing moon Enceladus. The small, dynamic moon spews out dramatic plumes of water vapor and ice -- first seen by NASA's Cassini spacecraft in 2005. ...

Space & Earth / Space Exploration

created Sep 22, 2011 | popularity 4.8 / 5 (6) | comments 13 | with audio podcast

GM, LG partner on electric vehicles

General Motors and LG Group will jointly design and engineer electric vehicles, the companies said Thursday.

Technology / Energy & Green Tech

created Aug 25, 2011 | popularity 1 / 5 (1) | comments 0

New device exposes explosive vapors

Decades after the bullets have stopped flying, wars can leave behind a lingering danger: landmines that maim civilians and render land unusable for agriculture. Minefields are a humanitarian disaster throughout the world, ...

Physics / General Physics

created Aug 15, 2011 | popularity not rated yet | comments 0

New way to produce antimatter-containing atom discovered

(PhysOrg.com) -- Physicists at the University of California, Riverside report that they have discovered a new way to create positronium, an exotic and short-lived atom that could help answer what happened ...

Physics / General Physics

created Jul 11, 2011 | popularity 4.8 / 5 (19) | comments 14 | with audio podcast

New semiconductor nanowire laser technology could kill viruses, improve DVDs

A team led by a professor at the University of California, Riverside Bourns College of Engineering has made a discovery in semiconductor nanowire laser technology that could potentially do everything from kill viruses to ...

Nanotechnology / Nanophysics

created Jul 05, 2011 | popularity 5 / 5 (8) | comments 6 | with audio podcast

Nanowires offer opportunities for improved LEDs

Researchers from Dutch FOM Institute AMOLF, together with colleagues from Philips Research, Eindhoven University of Technology and Delft University of Technology, have made special nanostructures that could ...

Nanotechnology / Nanomaterials

created Jul 01, 2011 | popularity 4.3 / 5 (6) | comments 1

Idling airplanes produce more harmful pollution than previously thought

(PhysOrg.com) -- A group of researchers from Carnegie Mellon University in Pittsburgh, have shown that the emissions produced by aircraft idling at the gate, or lining up for takeoff, contain tiny oil droplets, ...

Space & Earth / Earth Sciences

created May 12, 2011 | popularity 2 / 5 (2) | comments 6 | with audio podcast report

Proposed gamma-ray laser could emit 'nuclear light'

(PhysOrg.com) -- Building a nuclear gamma-ray laser has been a challenge for scientists for a long time, but a new proposal for such a device has overcome some of the most difficult problems. In the new study, Eugene Tkalya ...

Physics / Optics & Photonics

created May 02, 2011 | popularity 4.6 / 5 (20) | comments 12 | with audio podcast feature

Quantum dots are not dots: physicists

Researchers from the Quantum Photonics Group at DTU Fotonik in collaboration with the Niels Bohr Institute, University of Copenhagen surprise the scientific world with the discovery that light emission from ...

Nanotechnology / Nanophysics

created Dec 21, 2010 | popularity 4.7 / 5 (15) | comments 21 | with audio podcast