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News articles about "Density"

Self-destructive effects of magnetically-doped ferromagnetic topological insulators

The discovery of topologically protected electrical conductivity on the surface of some materials whose bulk interior acts as an insulator was among the most sensational advances in the last decade of condensed matter physics with ... - Read More

Carbon nanotube finding could lead to flexible electronics with longer battery life

University of Wisconsin Madison materials engineers have made a significant leap toward creating higher performance electronics with improved battery life and the ability to flex and stretch Led by materials science Associate Professor Michael Arnold ... - Read More

Harnessing bacteria to move microscopic gears and ratchets

Computer simulations at OIST suggest new applications in industry by harnessing active microscopic particles in fluids Previous research has already demonstrated that substantial quantities of self motile or active agents such as bacteria in a ... - Read More

Laser-induced graphene 'super' for electronics: Flexible, 3-D supercapacitors tested

Rice University scientists advanced their recent development of laser induced graphene LIG by producing and testing stacked three dimensional supercapacitors energy storage devices that are important for portable flexible electronics The Rice lab of chemist ... - Read More

Glass for battery electrodes

For some time now energy experts have been adamant that we will need much more clean energy in the future if we are to replace fossil fuel sources and reduce CO2 emissions For example electric ... - Read More

Water, Water, Everywhere -- Controlling the Properties of Nanomaterials

Wendy Hames and Katie Bethea Published Work H W Wang M DelloStritto N Kumar A I Kolesnikov P R C Kent J D Kubicki D J Wesolowski and J O Sofo “Vibrational density of states ... - Read More

Making synthetic materials more impervious: fewer plastic substances in food

Synthetic materials are convenient in many respects but they have one disadvantage they are permeable to gases In order to make plastic more impervious Ruhr Universität engineers apply wafer thin layers on surfaces This would ... - Read More

'Seeing' hydrogen atoms to unveil enzyme catalysis that may play key role in cancer drug development

Enzymes are catalysts that speed up chemical reactions in living organisms and control many cellular biological processes by converting a molecule or substrate into a product used by the cell For scientists understanding details of ... - Read More

"Seeing" Hydrogen Atoms to Unveil Enzyme Catalysis

how small its samples can be how large the crystal unit cells we can resolve ” said Kovalevsky “But this result shows the instrument is performing to its specifications which is exciting ” For future ... - Read More

Possible avenue to better electrolyte for lithium ion batteries

The lithium ion batteries that mobilize our electronic devices need to be improved if they are to power electric vehicles or store electrical energy for the grid Berkeley Lab researchers looking for a better understanding ... - Read More

Graphene 'cut and paste' with microwaves

Scientists in Russian Academy of Sciences Moscow have revealed a variety of transformations taking place on carbon surface under the influence of metal nanoparticles and microwaves Graphene cut and paste with metal nanoparticles was carried ... - Read More

Future batteries: Lithium-sulfur with a graphene wrapper

What do you get when you wrap a thin sheet of the wonder material graphene around a novel multifunctional sulfur electrode that combines an energy storage unit and electron ion transfer networks An extremely promising ... - Read More

Defects are perfect in laser-induced graphene

Researchers at Rice University have created flexible patterned sheets of multilayer graphene from a cheap polymer by burning it with a computer controlled laser The process works in air at room temperature and eliminates the ... - Read More

New technique could harvest more of the sun's energy

As solar panels become less expensive and capable of generating more power solar energy is becoming a more commercially viable alternative source of electricity However the photovoltaic cells now used to turn sunlight into electricity ... - Read More

World record for compact particle accelerator: Researchers ramp up energy of laser-plasma 'tabletop' accelerator

Using one of the most powerful lasers in the world researchers have accelerated subatomic particles to the highest energies ever recorded from a compact accelerator The team from the U S Department of Energy's Lawrence ... - Read More

Upsetting the stability of super-small gold clusters generates multifaceted nanocrystals with potent catalytic properties

A*STAR researchers have devised a way to destabilize gold nanoclusters so that they form tiny atomic nuclei that then grow together into perfectly proportioned 12 sided dodecahedron crystals These unique polyhedra have energy rich surfaces ... - Read More

Low-grade waste heat regenerates ammonia battery

An efficient method to harvest low grade waste heat as electricity may be possible using reversible ammonia batteries according to Penn State engineers The use of waste heat for power production would allow additional electricity ... - Read More

Saving energy with nanotechnology insulation

Mufit Akinc who has a series of patent plaques hanging high on his office wall knows all about the challenges of moving inventions out of the lab But he's determined to see one of his ... - Read More

Atmospheric carbon dioxide used for energy storage products

Chemists and engineers at Oregon State University have discovered a fascinating new way to take some of the atmospheric carbon dioxide that's causing the greenhouse effect and use it to make an advanced high value ... - Read More

Robotic ocean gliders aid study of melting polar ice

The rapidly melting ice sheets on the coast of West Antarctica are a potential major contributor to rising ocean levels worldwide Although warm water near the coast is thought to be the main factor causing ... - Read More
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