hartree


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hartree

[′här·trē]
(atomic physics)
A unit of energy used in studies of atomic spectra and structure, equal to 2 R hc or α2 mc 2, where Ris the Rydberg constant, h is Planck's constant, c is the speed of light, α is the fine-structure constant, and m is the mass of the electron; numerically, it is approximately 27.21 electronvolts or 4.360 × 10-18 joule. Also known as Hartree energy.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Among their topics are blowup rate for mass critical rotational nonlinear Schroder equations, the almost global existence of a classical solution for a three-dimensional wave equation of nematic liquid-crystals, the uniqueness of standing-waves for a non-linear Schrodinger equation with three pure-power combinations in dimension one, a regularity upgrade of pressure, and orbital stability of standing waves for fractional Hartree equations with unbounded potentials.
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Meanwhile, Sci-Tech Daresbury, in Warrington, is the home of the Hartree supercomputer.
Alder Hey has been working with the Hartree Centre (part of the UK's Science and Technology Facilities Council and supported by IBM), using IBM's Watson technology to enable questions to be answered in real time.
Among these attempts, we can cite the work of Hartree [11] who showed that under some conditions there exists a family of unique solutions of the problem whose first-order derivative tends to 1 exponentially.
This potential, called the Hartree potential, is obtained by solving the Poisson equation [18]:
The values of calculated quantum chemical parameters such as [mu], [E.sub.HOMO], [E.sub.LUMO], [DELTA]E (Hartree), [rho] (Hartree), and [sigma] (Hartree) of the studied inhibitors are listed in Table 8.
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