Sentences with phrase «low density material»

Led by Yuehe Lin, professor in the School of Mechanical and Materials Engineering, the researchers used inexpensive metal to make a super low density material, called an aerogel, to reduce the amount of precious metals required for fuel cell reactions.

Not exact matches

The inner fibers of the hemp stalk, called hurds, are known for their low density and high absorbency, which means they can be mixed with plaster or lime to make cheap and efficient building materials.

26 June 2013 — In a first for the carton packaging industry, Tetra Pak, the world leader in food processing and packaging solutions, has announced that it plans to sign an agreement with Braskem, the largest thermoplastic resins producer in the Americas, for the supply of low - density polyethylene (LDPE) made from sugar cane to its packaging material factories in Brazil.

It's made with the same resilient material — low - density foam that is portable and easy to clean.

Lowered density usually means that nerve - cell bodies, known as gray matter, or the material around them, have thinned out or died.

He and his colleagues hope to use this work to design real - world, damage - resistant materials of lower density.

Though it enables precise atom - by - atom fabrication of nanostructures, the process is very slow because the low density of adsorbed gas molecules in the vacuum environment limits the amount of material available for fabrication.

«The crust of a neutron star is made of lower - density material that contains protons, neutrons and electrons,» Conover says.

«You have a dense material mixed in with a low - density material, and traditional X-rays can't see that low - density material,» Dagel said.

It's hard to get an X-ray image of low - density material like tissue between bones because X-rays just pass right through like sunlight through a window.

«For low - density materials like plastics, polymers, foams and other encapsulants, this phase signal can be a thousand times bigger than the absorption signal (of conventional X-ray),» said principal investigator Amber Dagel, who studies physics - based microsystems.

The original concept for flow batteries dates back to the 1970s, but the early versions used materials that had very low energy - density — that is, they had a low capacity for storing energy in proportion to their weight.

«What this discovery implies is that if you prevented the static stripes from ever occurring, you might end up with a material that could act as a superconductor at a lower density of doping — and a much higher temperature,» Davis said.

Dagel had one in her office and, recognizing it's really just low - density materials, she and her colleagues imaged it to demonstrate their system.

«And the materials retain the low density of the pure semicrystalline polymerso that we can keep the weight of a structural component low, a property that is critical to applications such as cars and planes, where weight is a critical consideration.

«So they don't know if the gaps are filled with the low - density materials or if that's air.»

Then results from the Orbiting Astronomical Observatory 3, nicknamed Copernicus, showed that bubbles and tunnels of hot, low - density material pervade the interstellar medium.

According to the authors on the paper «Flexible Ionic Devices for Low - Frequency Mechanical Energy Harvesting» published online in the journal Advanced Energy Materials, «The peak power density of our device is in general larger than or comparable to those of piezoelectric generators operated at their most efficient frequencies.»

The increase in density, and a corresponding increase in stiffness of the molten material, results because the high pressure found deep within the planet would have forced each silicon atom to have six oxygen neighbors, not the four neighbors typically found at lower pressures.

PNNL's expertise in materials synthesis and processing will also contribute to the development of low - cost, high - capacity electrode materials for advanced batteries with unprecedented energy density and power.

We find that the decline in accretion rate is caused by lower densities of material in the accretion flows, as opposed to a lower surface coverage of the accretion columns.

Aerogel is an extremely low density lightweight synthetic material, often described as «solid smoke».

These significant depths suggest that Ceres» subsurface is no more than 40 percent ice by volume, and the rest may be a mixture of rock and low - density materials such as salts or chemical compounds called clathrates.

This material gathers into huge turbulent reservoirs of cool, low - density gas, extending more than 30 000 light - years from the galaxy's star forming region [3] These turbulent reservoirs of diffuse gas may be of the same nature as the giant glowing haloes seen around distant quasars..

Biener, M.M., et al., Ultra-strong and Low - Density Nanotubular Bulk Materials with Tunable Feature Sizes.

This performance is aided by the lavish use of ultralight materials, including carbon fibre for the shell, aluminium for the front and rear subframes and SMC (low density compound) for the bodywork.

Additionally, the car's bodywork is made entirely of low - density, high - strength composite material.

It is extremely soft and contains low - density plastic and is made of puncture resistant material.

Some, like David Owen, call for really high density; I have called for the Goldilocks Density; the fashionable phrase now is the missing middle; both describe density high enough to support local businesses so that one can mostly get around by walking, but buildings that are low enough that they can be efficiently built out of low carbon materials likdensity; I have called for the Goldilocks Density; the fashionable phrase now is the missing middle; both describe density high enough to support local businesses so that one can mostly get around by walking, but buildings that are low enough that they can be efficiently built out of low carbon materials likDensity; the fashionable phrase now is the missing middle; both describe density high enough to support local businesses so that one can mostly get around by walking, but buildings that are low enough that they can be efficiently built out of low carbon materials likdensity high enough to support local businesses so that one can mostly get around by walking, but buildings that are low enough that they can be efficiently built out of low carbon materials like wood.

From an environmental perspective the impact of higher density construction is much lower than low density sprawl as not as much material is required per dwelling unit.

Convection is gravitational: material rises because its density is lowered as it expands by being heated, and sinks because its density is increased by being cooled.

A major obstacle for bio-fuels» is transport of low energy density material.

To their surprise, the titanium augmented sodium alanate's capabilities as a storage system - lowering the temperature at which hydrogen was released, making the process much more efficient, while allowing for easier refueling and storage of high - density hydrogen at more conventional pressures and temperatures.The result: a near - doubling of the stored gas» weight - percent when compared to other cheap materials.

High quality agaves are very good feedstock material for biofuel... for the following characteristics: high total sugar density and content; high weight of the fruit and stems; cultivation and harvest cycles of six years; high density of plants per hectare; genetic diversity and high adaptability, low water requirements; CO2 and capture; methane metabolism; soil retention; plant nutrition; products from inulin; and low maintenance during cultivation.

Now because of the gaseous phase of the material the particle density is low compared to what it is in the liquid or solid phase of the same material.

Now in the case of a gaseous material, the density of the particles is quite low.

Low - density chipboard is the most basic material for carcases.