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.
References in periodicals archive ?
Shock troops BIGGAR produced a heroic display to stun the Premiership pacesetters HERIOT'S 13-0 at Hartree Mill.
Beattie jnr misses the GHA trip to Hartree Mill as he's with the Glasgow pro squad against Edinburgh at Old Anniesland, but Parker said his men face a tough task while GHA coach David Wilson said: "Biggar's spirit has caused problems.
The modules will be written to run with maximum efficiency on hardware with different architectures, available at four PRACE centres and at the Hartree Centre for HPC in Industry.
Des Hartree, whose wife of 55 years has dementia and lives in a nursing home, was speaking at the presentation of a 10,000-signature petition at Parliament House in Sydney.
Department of Energy for the next generation Sierra and Summit supercomputers and to be used by the United Kingdom's Science and Technology Facilities Council's Hartree Centre for big data research.
The Hartree Centre at Sci-Tech Daresbury will also receive investment to expand its high performance computing capability, which is expected to give UK businesses a two-year head start over international competitors.
Flying display director Wing Commander retired Bill Hartree said: "We will have more aircraft in the air than ever before at Cosford.
All system have been optimized at Hartree Fock (HF) and Beck3lyp Density Functional Theory (DFT) (4-6).
They will be known as the Hartree Centre (computer modelling) and Detector Systems Centre (sensor development), and also plan to work with the North West Regional Development Agency.
Declan Whyte, Megan Faulkner, Thomas Grand, Chelsea Morrall, Rebecca Grand, Aaron Hartree, Lucy Tennison, Jack Shergold and Megan Tongue.
Birken S, Maydelman Y, Gawinowicz MA, Pound A, Liu Y, Hartree AS.
Amongst the pros who have indicated they will attend are 'Ambassador of Poker' Mike Sexton (25/1), 1999 WSOP Main Event Winner Noel Furlong (33/1), 'Flying Dutchman' Marcel Luske (25/1), WSOP bracelet winners Ciaran O'Leary (33/1) and Michael Keiner (33/1), Padraig Parkinson (33/1), Robert Williamson III (25/1), Jon Kalmar (33/1), Scott Gray (33/1), Bruno Fitoussi (25/1), Jan SA[cedilla]rensen (25/1), Roy Brindley (25/1), Joe Beevers (33/1), Mad Marty Wilson (50/1), Julian Gardner (25/1), Katharine Hartree (50/1), Jeff Duvall (33/1), Alan Vinson (50/1), Steve Wong (33/1), Rory Liffey (33/1) and Ben Vinson (50/1).