News tagged with particle density

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

created Feb 06, 2012 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Proton beam experiments open new areas of research

By focusing proton beams using high-intensity lasers, a team of scientists have discovered a new way to heat material and create new states of matter in the laboratory.

Physics / General Physics

created Dec 05, 2011 | popularity 5 / 5 (3) | comments 0

Researchers show that gold doping increases nickel catalyst activity for carbon nanostructure formation

(PhysOrg.com) -- Researchers from the CNST and Arizona State University have demonstrated that the overall catalytic activity of nickel particles for the formation of carbon nanostructures is improved by the addition of a ...

Nanotechnology / Nanomaterials

created Oct 13, 2011 | popularity not rated yet | comments 0

Study reveals structures of solar wind as it travels toward, impacts Earth (w/ video)

Using data collected by NASA's STEREO spacecraft, researchers at Southwest Research Institute and the National Solar Observatory have developed the first detailed images of solar wind structures as plasma ...

Space & Earth / Space Exploration

created Aug 18, 2011 | popularity 4.3 / 5 (7) | comments 4 | with audio podcast

Rechargeable lithium-sulfur batteries get a boost from graphene

(PhysOrg.com) -- By wrapping tiny sulfur particles in graphene sheets, researchers from Stanford University have synthesized a promising cathode material for rechargeable lithium-sulfur batteries that could ...

Nanotechnology / Nanomaterials

created Jul 13, 2011 | popularity 4.2 / 5 (22) | comments 53 | with audio podcast feature

Scientists model physics of a key dark-energy probe

Ohio State University researchers are leveraging powerful supercomputers to investigate one of the key observational probes of "dark energy," the mysterious energy form that is causing the expansion of the ...

Physics / General Physics

created Jul 12, 2011 | popularity 3.3 / 5 (6) | comments 1 | with audio podcast

Modeling the bizarre: Quantum superfluids

(PhysOrg.com) -- More than 100 years since superconductivity was discovered, a comprehensive description for the behavior of a broad class of fundamental physical systems that exhibit the bizarre properties ...

Physics / Quantum Physics

created Jun 23, 2011 | popularity 5 / 5 (6) | comments 1 | with audio podcast

Mini disks for data storage: Slanted edges favor tiny magnetic vortices

Slanted exterior edges on tiny magnetic disks could lead to a breakthrough in data processing. Materials researchers of the Helmholtz-Zentrum Dresden-Rossendorf, Germany, were able to create magnetic vortices with a diameter ...

Physics / Condensed Matter

created Mar 14, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

Shining new light on dark energy with galaxy clusters

(PhysOrg.com) -- Scientists' murky understanding of dark energy may have just gotten a little clearer, thanks to recent work by a team of researchers that includes astrophysicist Neelima Sehgal of the Kavli ...

Space & Earth / Astronomy

created Dec 09, 2010 | popularity 4.8 / 5 (10) | comments 12 | with audio podcast

Gravity might amplify quantum fluctuations, create astrophysical objects

(PhysOrg.com) -- In a new study, physicists have proposed that gravity could trigger a runaway effect in quantum fluctuations, causing them to grow so large that the quantum field’s vacuum energy density could dominate its ...

Physics / General Physics

created May 17, 2010 | popularity 4.6 / 5 (28) | comments 9 | with audio podcast report

Scientists explain mystery of observed turbulent density fluctuations in interplanetary space

(PhysOrg.com) -- Scientists at The University of Alabama in Huntsville have developed a three-dimensional simulation model to understand behavior of interplanetary charged particles in space.

Space & Earth / Astronomy

created Oct 28, 2009 | popularity 4.8 / 5 (4) | comments 2