News tagged with junction temperature


Bright idea illuminates LED standards

Physics / General Physics

created Nov 25, 2008 | popularity 4.6 / 5 (8) | comments 0

The lack of common measurement methods among light-emitting diode (LED) and lighting manufacturers has affected the commercialization of solid-state lighting products. In a recent paper, researchers at the National Institute ...





Search results for junction temperature


How amyloid beta reduces plasticity related to synaptic signaling

Medicine & Health / Research

created 23 hours ago | popularity not rated yet | comments 0

The early stages of Alzheimer's disease are thought to occur at the synapse, since synapse loss is associated with memory dysfunction. Evidence suggests that amyloid beta (Aβ) plays an important role in early synaptic ...


Student sleuths using DNA reveal zoo of 95 species in NYC homes -- and new evidence of food fraud

Student sleuths using DNA reveal zoo of 95 species in NYC homes -- and new evidence of food fraud

Biology / Cell & Microbiology

created Dec 28, 2009 | popularity 5 / 5 (12) | comments 4

Two New York City high school students exploring their homes using the latest high-tech DNA analysis techniques were astonished to discover a veritable zoo of 95 animal species surrounding them, in everything ...


Climate change puts ecosystems on the run, researchers say

Climate change puts ecosystems on the run, researchers say

Space & Earth / Environment

created Dec 27, 2009 | popularity 2.3 / 5 (18) | comments 32

(PhysOrg.com) -- Global warming is causing habitats to move across the landscape. Can the creatures living there keep up? If they can't, some species may die out, researchers say.


Voyager makes an interstellar discovery

Voyager makes an interstellar discovery

Space & Earth / Space Exploration

created Dec 26, 2009 | popularity 4.7 / 5 (60) | comments 23

The solar system is passing through an interstellar cloud that physics says should not exist. In the Dec. 24th issue of Nature, a team of scientists reveal how NASA's Voyager spacecraft have solved the mystery.


As shuttle's career nears an end, NASA turns focus to satellites

Space & Earth / Space Exploration

created Dec 26, 2009 | popularity 4.4 / 5 (8) | comments 2

NASA heads into 2010 with the bittersweet assignment of retiring the space shuttle after nearly three decades. But that's not all the agency has planned: There are also launches of three new satellites aimed at better understanding ...


Hot Water Treatment Eliminates Rhizoctonia from Azalea Cuttings

Hot Water Treatment Eliminates Rhizoctonia from Azalea Cuttings

Biology / Ecology

created Dec 24, 2009 | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- Rhizoctonia, a fungal disease that can be found in many ornamental plants, can be eliminated in azalea by placing plant cuttings in a hot water treatment, an Agricultural Research Service (ARS) ...


New materials designed to deal with hypersonic and supersonic hot stuff (w/ Video)

New materials designed to deal with hypersonic and supersonic hot stuff (w/ Video)

Physics / Condensed Matter

created Dec 24, 2009 | popularity 4.5 / 5 (20) | comments 6

University of Queensland researchers are testing new materials to withstand the extreme heat experienced by hypersonic vehicles in flight so they can fly for substantially longer.


Keck Telescopes Take Deeper Look at Planetary Nurseries

Keck Telescopes Take Deeper Look at Planetary Nurseries

Space & Earth / Astronomy

created Dec 23, 2009 | popularity 4.8 / 5 (13) | comments 2

(PhysOrg.com) -- Astronomers using the W. M. Keck Observatory have peered far into a young planetary system, giving an unprecedented view of dust and gas that might eventually form planets similar to Jupiter, ...


Scientists map speed of climate change

Space & Earth / Environment

created Dec 23, 2009 | popularity 2.8 / 5 (31) | comments 39

New study finds that the average ecosystem will need to shift about a quarter mile per year to keep pace with global climate change.


Understanding interaction in virtual worlds

Technology / Computer Sciences

created Dec 23, 2009 | popularity 3 / 5 (10) | comments 0

New cinema blockbuster, Avatar, leapt to the top of box office charts as soon as it came out — a stunning 3D realisation of an alien world. Our fascination with themes of escape to other fantastic places and the thrill of ...



List of search results for junction temperature