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  2. Multipole density formalism - Wikipedia

    en.wikipedia.org/wiki/Multipole_density_formalism

    The Independent Atom Model (abbreviated to IAM), upon which the Multipole Model is based, is a method of charge density modelling. It relies on an assumption that electron distribution around the atom is isotropic, and that therefore charge density is dependent only on the distance from a nucleus.

  3. Waste input-output model - Wikipedia

    en.wikipedia.org/wiki/Waste_Input-Output_Model

    Additionally, the model accounts for the transformation of waste during treatment into secondary waste and residues, as well as recycling and final disposal processes. [2] By including the end-of-life (EoL) stage of products, the WIO model enables a comprehensive consideration of the entire product life cycle, encompassing production, use, and ...

  4. Q-Chem - Wikipedia

    en.wikipedia.org/wiki/Q-Chem

    Q-Chem software is maintained and distributed by Q-Chem, Inc., [6] located in Pleasanton, California, USA. It was founded in 1993 as a result of disagreements within the Gaussian company that led to the departure (and subsequent "banning") of John Pople and a number of his students and postdocs (see Gaussian License Controversy [7]).

  5. Plum pudding model - Wikipedia

    en.wikipedia.org/wiki/Plum_pudding_model

    Thomson's model marks the moment when the development of atomic theory passed from chemists to physicists. While atomic theory was widely accepted by chemists by the end of the 19th century, physicists remained skeptical because the atomic model lacked any properties which concerned their field, such as electric charge, magnetic moment, volume, or absolute mass.

  6. The 20 best sales this weekend: Stocking stuffers, last ... - AOL

    www.aol.com/the-20-best-sales-this-weekend...

    This edition is kitted out with an 11-inch screen, 64GB, modern and fast WiFi 7 tech, and also comes with a durable puffy cover to keep the tablet protected from drops and falls. $200 at Amazon ...

  7. Bohr model - Wikipedia

    en.wikipedia.org/wiki/Bohr_model

    The Bohr model is a relatively primitive model of the hydrogen atom, compared to the valence shell model. As a theory, it can be derived as a first-order approximation of the hydrogen atom using the broader and much more accurate quantum mechanics and thus may be considered to be an obsolete scientific theory .

  8. The Romney Plan For A Stronger Middle Class - HuffPost

    images.huffingtonpost.com/2012-08-24-romney...

    Can Drill Our Way Out of This Problem,” Raymond James, 4/2/12) Manhattan Institute: “A Complete Reversal In Thinking Is Needed To Orient North America Around Hydrocarbon Abundance.” “The underlying paradigms embedded in American energy policy and regulatory structures are anchored in the idea of shortages and import dependence.

  9. The average rate on a 30-year mortgage in the U.S. eased again this week, slipping to its lowest level since late October. The rate dropped to 6.69% from 6.81% last week, mortgage buyer Freddie ...