Sentences with phrase «dimensional electron microscope images»
That structure is three dimensional, and beginning in the 1970s Frank developed a mathematical image - processing method that allowed a computer to merge several two - dimensional electron microscope images into a sharp 3 - D picture.
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In 1990, Henderson was the first to use an electron microscope to produce «a three - dimensional image of a protein at atomic resolution.
«He developed an image processing method in which the electron microscope's fuzzy two - dimensional images are analyzed and merged to reveal a sharp three - dimensional structure,» the committee explained.
However, scanning transmission electron microscopes only produce two - dimensional images.
They used a scanning electron microscope and focused ion beam to obtain thin - slice images of the membrane, which they analyzed with software, rebuilding the three - dimensional structure of the membranes to determine fuel cell longevity.
The group has developed liquid - helium cooled scanning probe microscopes (SPMs) that can image electron motion through a two dimensional electron gas, in GaAs / AlGaAs and graphene / hBN layered structures.
Today, Joshua - Tor is using a cryo - electron microscope, where an electron beam is passed through a rapidly frozen specimen — no crystal necessary — to obtain a near atomic - level 3 - dimensional image.
By taking multiple images of the iron - platinum nanoparticle with an advanced electron microscope at Lawrence Berkeley National Laboratory and using powerful reconstruction algorithms developed at UCLA, the researchers determined the precise three - dimensional arrangement of atoms in the nanoparticle.