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News articles about "theoretical"

Crystallography: Towards controlled dislocations

Crystallographic defects or irregularities known as dislocations are often found within crystalline materials Two main types of dislocation exist edge and screw type However dislocations found in real materials tend to be a mix of ... - Read More

Wild molecular interactions in a new hydrogen mixture

Hydrogen the most abundant element in the cosmos responds to extremes of pressure and temperature differently Under ambient conditions hydrogen is a gaseous two atom molecule As confinement pressure increases the molecules adopt different states ... - Read More

A new piece in the high-temperature superconductivity puzzle: 'Dressing' in superconductors

The physical mechanism that generates superconductivity in materials at high critical temperature like cuprates which appear to be among the most promising materials for technological applications remains a mystery So far experimental observations haven't clarified ... - Read More

Unique catalysts for hydrogen fuel cells synthesized in ordinary kitchen microwave oven

Swedish and Chinese researchers show how a unique nano alloy composed of palladium nano islands embedded in tungsten nanoparticles creates a new type of catalysts for highly efficient oxygen reduction the most important reaction in ... - Read More

Chemists uncover new role of a key base in organic synthesis

An international team of chemists has discovered a new piece to the puzzle of how a powerful base used in organic synthesis cesium carbonate plays a pivotal role during a catalytic reaction The research published ... - Read More

Rare 'baby rattle' molecules reveal new quantum properties of H2O and H2

The experiments were carried out on endofullerenes molecules of C60 into which smaller molecules of hydrogen H2 had been inserted The results published in Physical Review Letters represent the first known example of a quantum ... - Read More

Rare 'baby rattle' molecules reveal new quantum properties of H2O and H2

The experiments were carried out on endofullerenes molecules of C60 into which smaller molecules of hydrogen H2 had been inserted The results published in Physical Review Letters represent the first known example of a quantum ... - Read More

Physics determined ammonite shell shape

Ammonites are a group of extinct cephalopod mollusks with ribbed spiral shells They are exceptionally diverse and well known to fossil lovers Régis Chirat researcher at the Laboratoire de Géologie de Lyon Terre Planètes et ... - Read More

Discovery of new subatomic particle, type of meson, to 'transform' understanding of fundamental force of nature

The discovery of a new particle will transform our understanding of the fundamental force of nature that binds the nuclei of atoms researchers argue Led by scientists from the University of Warwick the discovery of ... - Read More

'Cyberwar' against cancer gets a boost from intelligent nanocarriers

Two years ago Prof Eshel Ben Jacob of Tel Aviv University's School of Physics and Astronomy and Rice University's Center for Theoretical Biological Physics made the startling discovery that cancer like an enemy hacker in ... - Read More

Atmospheric chemistry hinges on better physics model

New theoretical physics models could help us better grasp the atmospheric chemistry of ozone depletion Indeed understanding photoabsorption of nitrous oxide N2O a process which involves the transfer of the energy of a photon to ... - Read More

All directions are not created equal for nanoscale heat sources

Thermal considerations are rapidly becoming one of the most serious design constraints in microelectronics especially on submicron scale lengths A study by researchers from the University of Illinois at Urbana Champaign has shown that standard ... - Read More

Nanotechnology: Fullerene spheres can be used to slide in the nanoworld

Nano machines around one billionth of a metre in size of the future will need tiny devices to reduce friction and make movement possible The C60 molecule also known as fullerene or buckyball seemed to ... - Read More

Untangling how cables coil: Simulation technology from movies is used to predict coiling patterns in the lab

The world's fiber optic network spans more than 550 000 miles of undersea cable that transmits e mail websites and other packets of data between continents all at the speed of light A rip or ... - Read More

Unlocking Enzyme Synthesis of Rare Sugars to Create Drugs with Fewer Side Effects

Released 29 Sep 2014 11 00 AM EDTSource Newsroom Oak Ridge National Laboratory more news from this source Contact Information Available for logged in reporters only Sep 30 2014 A team led by the U ... - Read More

Elusive quantum transformations found near absolute zero

Heat drives classical phase transitions think solid liquid and gas but much stranger things can happen when the temperature drops If phase transitions occur at the coldest temperatures imaginable where quantum mechanics reigns subtle fluctuations ... - Read More

'Talking' and 'listening' to atoms: Scientists make acoustic waves couple to an artificial atom

Researchers at Chalmers University of Technology are first to show the use of sound to communicate with an artificial atom They can thereby demonstrate phenomena from quantum physics with sound taking on the role of ... - Read More

Excitonic dark states shed light on TMDC atomic layers: New promise for nanoelectronic and photonic applications

A team of Berkeley Lab researchers believes it has uncovered the secret behind the unusual optoelectronic properties of single atomic layers of transition metal dichalcogenide TMDC materials the two dimensional semiconductors that hold great promise ... - Read More

Astrophysicists to probe how early universe made chemical elements

In the beginning all was hydrogen and helium plus a bit of lithium Three elements in all Today's universe however has nearly a hundred naturally occurring elements with thousands of variants isotopes and more likely ... - Read More

Co-flowing liquids can stabilize chaotic 'whipping' in microfluidic jets

Industrial wet spinning processes produce fibers from polymers and other materials by using tiny needles to eject continuous jets of liquid precursors The electrically charged liquids ejected from the needles normally exhibit a chaotic whipping ... - Read More
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