News tagged with diffusion
Researchers ink nanostructures with tiny 'soldering iron'
Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab) have shed light on the role of temperature in controlling a fabrication technique for drawing chemical patterns as small as 20 nanometers. ...
Nov 07, 2011 |
4.8 / 5 (4) |
0
|
Making stars: Studies show how cosmic dust and gas shape galaxy evolution
Astronomers find cosmic dust annoying when it blocks their view of the heavens, but without it the universe would be devoid of stars. Cosmic dust is the indispensable ingredient for making stars and for understanding ...
Nov 22, 2010 |
5 / 5 (11) |
6
|
Discovery paves way for development of efficient, inexpensive plastic solar cells
Physicists at Rutgers University have discovered new properties in a material that could result in efficient and inexpensive plastic solar cells for pollution-free electricity production.
Nanotechnology / Nanomaterials
Oct 10, 2010 |
4.7 / 5 (20) |
6
|
Two-In-One Punch Knocks Out Drug Resistant Cancer Cells
(PhysOrg.com) -- Cancer cells, like bacteria, can develop resistance to drug therapy, leading to relapse of disease. One approach showing promise in overcoming multidrug resistance in tumors is to combine two different anticancer ...
Nanotechnology / Bio & Medicine
Nov 04, 2009 |
5 / 5 (4) |
0
Earth's crust melts easier than previously thought
A University of Missouri study published in Nature this week has found that the Earth's crust melts easier than previously thought. In the study, researchers measured how well rocks conduct heat at differ ...
Space & Earth / Earth Sciences
Mar 18, 2009 |
3.6 / 5 (14) |
5
Astrophysicists discover new heating source in cosmological structure formation
(Phys.org) -- So far, astrophysicists thought that super-massive black holes can only influence their immediate surroundings. A collaboration of scientists at the Heidelberg Institute for Theoretical Studies ...
May 15, 2012 |
4.1 / 5 (11) |
8
|
Whether tweets live or die depends more on network, competition for attention than message or user influence
On the global social media stage, it's not so much the message but rather network structure and competition for attention that determine whether a meme becomes popular and shows staying power or whether it ...
Apr 03, 2012 |
3.7 / 5 (3) |
3
|
Nanorod-assembled order affects diffusion rate and direction
Some of the recent advancements in nanotechnology depend critically on how nanoparticles move and diffuse on a surface or in a fluid under non-ideal to extreme conditions. Georgia Tech has a team of researchers ...
Nanotechnology / Bio & Medicine
Feb 06, 2012 |
5 / 5 (2) |
0
|
A pocket of star formation
(PhysOrg.com) -- This new view shows a stellar nursery called NGC 3324. It was taken using the Wide Field Imager on the MPG/ESO 2.2-metre telescope at the La Silla Observatory in Chile. The intense ultraviolet ...
Feb 01, 2012 |
not rated yet |
0
|
Researchers boost solar concentrator efficiency
A team of researchers at the University of California, Merced, has redesigned luminescent solar concentrators to be more efficient at sending sunlight to solar cells.
Jan 23, 2012 |
4.4 / 5 (7) |
5
|
FLEX-ible insight into flame behavior
(PhysOrg.com) -- Whether free-burning or smoldering, uncontrolled fire can threaten life and destroy property. On Earth, a little water, maybe some chemicals, and the fire is smothered.
Space & Earth / Space Exploration
Nov 30, 2011 |
not rated yet |
7
|
Mysterious stellar absorption lines could illuminate 90-year puzzle
The discovery of 13 diffuse interstellar bands with the longest wavelengths to date could someday solve a 90-year-old mystery.
Nov 02, 2011 |
4.9 / 5 (9) |
3
|
Solar concentrator increases collection with less loss
(PhysOrg.com) -- Converting sunlight into electricity is not economically attractive because of the high cost of solar cells, but a recent, purely optical approach to improving luminescent solar concentrators ...
Nov 02, 2011 |
4.8 / 5 (9) |
2
|
Physicists take inspiration from spilled milk
(PhysOrg.com) -- Two Lehigh physicists have developed an imaging technique that makes it possible to directly observe light-emitting excitons as they diffuse in a new material that is being explored for its ...
Aug 12, 2011 |
4.5 / 5 (4) |
0
|
The Chandra Carina complex project
(PhysOrg.com) -- The Great Nebula in the constellation of Carina is a massive star-forming complex located about 7.5 thousand light-years away. The main star in the complex, Eta Carinae, shines brightly in ...
May 16, 2011 |
5 / 5 (7) |
1
|
Diffusion
Diffusion describes the spread of particles through random motion from regions of higher concentration to regions of lower concentration. The time dependence of the statistical distribution in space is given by the diffusion equation. The concept of diffusion is tied to that of mass transfer driven by a concentration gradient. Diffusion is invoked in the social sciences to describe the spread of ideas.
For more information about Diffusion, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
