hartree


Also found in: Wikipedia.

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 ?
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.
The soluble protein concentration was determined by Lowry's method as modified by Hartree, using BSA (Bovine Serum Albumin) as the standard (Hartree, 1972).
Themis Papadopoulos, President of the Cyprus Shipping Chamber moderated the discussion with fellow panellists Robert Burke, CEO of Ridgebury Tankers, Rob McLeod, Head of Risk Marketing of Hartree Partners Advisory Services UK and Kevin Oates, Managing Director of Marine Money Asia Pt.
Maxeler is offering Government Departments help and assistance in looking to migrate large data sets to the cloud and to perform advanced analytics on that data at ultra-high speed using its experience in Tier 1 banks and from its work and installation of its supercomputers at the Science and Technology Facilities Council at Hartree.
The Power Systems platform has also been selected for use by the Department of Energy's Oak Ridge and Lawrence Livermore National Laboratories, and the UK government's Science and Technology Facilities Council's Hartree Centre.
An investigation performed by Hartree and Mann [51] revealed that incubation of ram semen in the absence of any exogenous substrate, resulted in spermatozoa oxidising the long chain fatty acid resides from phosphatidyl choline which is a principal phospholipid of spermatozoa.
El analisis de proteina se realizo segun el metodo de Hartree (1972), donde las proteinas se determinaron por espectrofotometria, utilizando suero de albumina de bovino (BSA) como estandar.
Several other trading houses including Vitol, CCI Rolympus and Hartree have enquired about floating storage in recent days, according to ship brokers.
Alder Hey Children's NHS Foundation Trust has reported a multi-year collaborative program with the Science and Technology Facilities Council's (STFC) Hartree Centre, supported by IBM (NYSE: IBM), to create the United Kingdom's first cognitive hospital by harnessing big data and IBM's Watson technology platform, the company said.
WHAT was the actor George Frederick Joffre Hartree better known as?
The composite simulations were performed using Gaussian 03 software with 6-311G/6-31G databases, Single Point Energy method (SPE), with the unrestricted Hartree Fock approximation to find spin functions and electrostatic multipolar expansion.
The firm will change its name to Hartree Partners, LP.