noun
COLLOCATIONS FROM OTHER ENTRIES
electron microscope
COLLOCATIONS FROM CORPUS
■ ADJECTIVE
free
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The alternating transverse force makes the free electrons move sinusoidally, radiating photons in the forward direction.
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Maybe under pressure free electrons do it.
scanning
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Fig. 1. Scanning electron micrograph showing the distribution of the angular grains of alumina in Inceram.
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The school's equipment includes a scanning electron microscope.
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Fig. 5. Scanning electron micrograph of a diatom.
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For scanning electron microscopy, the tissues were left in the fixative for 3 hours at room temperature.
single
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The UA1 team has found five occasions on which a single electron with all the right characteristics was produced.
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Summerlee had found an electric probe so sensitive it could detect the passage of a single electron .
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But there is no such thing as a single atom, or single electron , that is superconducting.
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The single electron then occupies the lower orbital, d z 2, and the overall energy of the system is reduced.
■ NOUN
acceptor
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This process involves the addition of microorganisms, nutrients and an electron acceptor into the saturation zone of a contaminated aquifer.
beam
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Alternatively, electron beam machines are used.
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Fire a high energy electron beam at a metal target and bremsstrahlung effect produces intense X-rays.
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A basic example occurs in an electron beam - so important in television and radio.
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The device is fabricated in Gallium Arsenide using electron beam lithography to define special side-gated channels.
density
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Computer simulated graphics of these species show electron density delocalised across three centres.
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The 3Å map was noisier but showed improved definition of side-chain electron density .
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The non-crystallographic symmetry was established from the electron density and heavy atom sites.
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All maps show electron density contoured at 1 standard deviation, with the current model displayed for comparison.
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The 2.8Å electron density map is of high quality.
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Two phasing methods were used to obtain electron density maps.
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The intensity of scattering is a function of the electron density and therefore of the refractive index.
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The vertical bars show the region of H5 that has been built in the electron density map.
microprobe
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This is needed for electron microprobe or back-scattered Scanning Electron Microscope work where a perfect surface is required.
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Activator and quencher ions may produce their effects at extremely low concentrations, below the detection limits of the electron microprobe .
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In some ways it is therefore similar to electron microprobe analysis, but it is more sensitive than the latter.
microscope
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Mike Stewart's morphological methods, however, could go beyond those of light microscopy to that of the electron microscope .
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Before a virus particle is prepared for the electron microscope it must be made static.
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Although small, these single crystals can be studied using an electron microscope .
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Richman then took the tissues to an electron microscope , which offers powers of magnification great enough to see viruses themselves.
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Specialist image analysis equipment for light and electron microscope images also require interfacing with powerful computers.
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Fantastic electron microscope images of objects looking very suggestively like fossilized living forms again captured the imagination of the world.
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Baranowski and his team attribute this to a layered arrangement of atoms - visible in the electron microscope .
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The technique has been extensively used to study vibrations associated with surfaces and thin film samples, usually in an electron microscope .
microscopy
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To evaluate our first impressions we examined transmission electron microscopy findings in 40 H pylori positive cases out of 94 randomised cases.
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Over the past 10 years Philips Analytical has grown and diversified away from its core technologies of X-ray analysis and electron microscopy .
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Using electron microscopy , Rubin etal showed that the tight junctions appeared morphologically unchanged in untreated coeliac disease patients.
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The growth rate was established by flow cytometry and the morphological characteristics of the growing cells by electron microscopy .
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Transmission electron microscopy was used to analyse the morphological features of the growing cells.
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The small intestinal mucosa was studied by histology, morphometry, biochemistry, and electron microscopy .
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Of considerable physiological importance are the membrane systems revealed by electron microscopy .
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Miller separated photosynthesis membranes from the purple bacterium, Rhodopseudomonas viridis, and has now determined their 3-D structure by electron microscopy .
spin
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This is a consequence of electron spin .
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Increasingly U-series dates are being used in conjunction with electron spin resonance dates using the same materials.
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For the moment just note that electron spin provides a second example of a two-dimensional state vector space in quantum mechanics.
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The rules can be divided into those concerned with electron spin and those related to orbital properties.
transfer
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Intervalence compounds have been classified according to the ease of electron transfer between the distinct sites.
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In Class I compounds, electron transfer between the centers is slow, and the sites behave as if they were effectively independent.
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The overall electron transfer from the anion is particularly high and has been calculated at approximately 0.8e.
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Donor and acceptor compounds are differentiated by the direction of the electron transfer to or from the carbon layers.
transmission
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To evaluate our first impressions we examined transmission electron microscopy findings in 40 H pylori positive cases out of 94 randomised cases.
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The second half of the chapter introduces electron diffraction with a focus on transmission electrons.
volt
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In Rutherford's experiment, the u-particles had energies of millions of electron volts .
■ VERB
contain
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Helium, the next element in the periodic table, contains two electrons encircling a nucleus containing two protons.
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For example, each side of the card may contain an embedded electron whose spin remains correlated with its twin.
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The belt surrounds Jupiter and contains ions and electrons with comparatively large energies of motion.
lose
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Energy lost by electrons as they are evicted from their traps is emitted as light radiation and is termed thermoluminescence.
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Sodium has a strong tendency to lose an electron and become the positively charged ion Na.
remove
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If we remove an electron from an anti-bonding orbital, the ion will be more tightly bound than the molecule was.
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Since we have removed an anti-bonding electron the vibrational frequency of the ion is greater than that of the molecule.
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If we remove an electron from a bonding orbital, the bond in the ion is weaker than that in the molecule.
use
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Although small, these single crystals can be studied using an electron microscope.
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It uses a line electron source and so needs only one deflection component.
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Increasingly U-series dates are being used in conjunction with electron spin resonance dates using the same materials.
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Two phasing methods were used to obtain electron density maps.
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We can therefore choose the depth to which we probe by using appropriate electron binding energies.
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The device is fabricated in Gallium Arsenide using electron beam lithography to define special side-gated channels.
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I strongly recommend the book to anyone in any field who is interested in using electron microscopy.
EXAMPLES FROM CORPUS
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Although small, these single crystals can be studied using an electron microscope.
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Crystal cleanliness and crystallinity were checked by Auger electron spectroscopy and low energy electron diffraction, respectively.
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How near depends on the electron energy.
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In electron sharing, a shared electron can not be considered to have been gained or lost.
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Screen-printed silver metal contacts on the surface of the wafer collect the streams of electrons and produce an electric current.
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The valency of an atom in a covalent molecule is the number of electrons shared by the atom in forming the bond.
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The world it presents is populated by entities such as electrons and quarks.
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This leaves one electron on each carbon atom unaccounted for.