hydrogen atom

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References in periodicals archive ?
What we found is that there is a clear break, a point near our home Galaxy where dwarf galaxies are completely devoid of any traces of neutral atomic hydrogen," noted Spekkens.
However, hydrogen embrittlement should follow Sievert's law and will be influenced by the concentration of atomic hydrogen absorbed in the metal.
The mechanism of cracking is explained by development of internal pressure on the assumption that interstitial atomic hydrogen is released as molecular hydrogen at voids or other sites under extreme pressure that results in formation of visible blisters associated with HIC specially seen in ductile metals that are cathodically polarized.
Our observations suggest that what we may be seeing during this transition is atomic hydrogen becoming completely ionized," says Fan.
When the hydrogen gas comes into contact with the surface of the metal hydride alloy, if separates into atomic hydrogen (H, not [H.
Atomic hydrogen normally exists in a "ground" state with the single electron orbiting at a specific radius.
Hydrogen solution may result from the dissociation of moisture in the atmosphere, which allows atomic hydrogen diffusion into the melt.
Examples of welding processes and technologies analysed within the report include: arc, MIG, TIG, plasma-arc, shielded metal arc-welding, submerged arc-welding, carbon arc-welding, electro-slag, radiant energy, laser, electron beam, atomic hydrogen, solid state, ultrasonic, cold and diffusion.
TEHRAN (FNA)- Astronomers and students found a bridge of atomic hydrogen gas 2.
A cyclic pathway has been created, wherein triplet hydrogen is preserved and continuously working to assist in the resynthesis of condensed hydrogen structures, as the Sun recaptures any atomic hydrogen lost to its atmosphere.
However, the new detection of Lyman-alpha emissions from native lunar atomic hydrogen gas released by the impact is a first for LAMP, and for any previous instrument.
Among the topics he discusses are why to record the spectra of astronomical objects, atomic hydrogen, helium spectra, alkali atoms, spectra in magnetic fields, molecular structure, rotational spectra, and the electronic spectra of diatomic molecules.
BURST VERSUS QUASAR Researchers have already recorded the telltale gap caused by atomic hydrogen in the spectrum of another type of bright beacon, known as a quasar (SN: 8/11/01,p.
Exact analytical solutions to the Schrodinger equation, which determines such quantities, are known only for atomic hydrogen and other equivalent two-body systems.