«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.
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.
Not exact matches
With this in mind, the
Materials Genome Initiative is building databases of
material properties
like strength,
density and other things, and also includes computer models to predict what processes will achieve the qualities a manufacturer is looking for.
Each book is printed on a synthetic
material made from non-toxic, flashspun high -
density polyethylene fibers that feel
like paper but are very difficult to tear.
High -
density forests are necessary for certain applications of carbon nanotubes,
like electronic interconnects and thermal interface
materials, he says.
«Normally in a metal
like silver or copper or gold, the
density of electrons in that metal is fixed; it's just a property of the
material,» Atwater says.
Duan pointed out that the same porous scaffold design they used with niobia could be used with other active
materials like silicon or tin oxide, which boast high energy
density, the ability to store lots of ions for longer - lasting batteries.
There are also a variety of
materials from which to choose, from MDF, or medium
density fiberboard, to pine, to beautiful hardwoods
like oak or cherry.
Also, there needs to be consideration taken for the
density of the
material of the toy, due to the fact that softer toys are destroyed quite easily; making a choking hazard out of the bits created by chewing (or other violent acts...)
like tug - of - war, or shaking - personal favorites of the pit - bull!
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 lik
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 lik
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 lik
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 like wood.
The continents consist of
materials with
densities averaging on the order of 2.5 g / cm3 («granite»); the underlying basaltic mantle is more
like 3.0 g / cm3.
Greater
density and better
materials mean better storage for things
like solar or wind power that can be inconsistent sources of energy, but the best and cleanest options.