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  2. Chromium(VI) oxide peroxide - Wikipedia

    en.wikipedia.org/wiki/Chromium(VI)_oxide_peroxide

    The structure of the pyridine complex has been determined crystallographically. [2] Adducts with other N-heterocycles have also been characterized similarly. [3] Aqueous chromium(VI) oxide peroxide decomposes in a few seconds, turning green as chromium(III) compounds are formed. [4] 2 CrO(O 2) 2 + 7 H 2 O 2 + 6 H + → 2 Cr 3+ + 10 H 2 O + 7 O 2

  3. Two-dimensional electron gas - Wikipedia

    en.wikipedia.org/wiki/Two-dimensional_electron_gas

    A two-dimensional electron gas (2DEG) is a scientific model in solid-state physics. It is an electron gas that is free to move in two dimensions, but tightly confined in the third. This tight confinement leads to quantized energy levels for motion in the third direction, which can then be ignored for most problems.

  4. Gas networks simulation - Wikipedia

    en.wikipedia.org/wiki/Gas_networks_simulation

    Gas networks simulation or gas pipeline simulation is a process of defining the mathematical model of gas transmission and gas distribution systems, which are usually composed of highly integrated pipe networks operating over a wide range of pressures. Simulation allows to predict the behaviour of gas network systems under different conditions ...

  5. Thermodynamic modelling - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_modelling

    As a result, these models are referred to as multi-parameter models. Steps to develop a Helmholtz free energy model can be summarized as: Helmholtz free energy of pure components: Like all the thermodynamic models, the first step is to build the Helmholtz free energy of pure constituents of a system. For well-known components, such as carbon ...

  6. Gas electron diffraction - Wikipedia

    en.wikipedia.org/wiki/Gas_electron_diffraction

    Gas electron diffraction (GED) is one of the applications of electron diffraction techniques. [1] The target of this method is the determination of the structure of gaseous molecules, i.e., the geometrical arrangement of the atoms from which a molecule is built up.

  7. Open energy system models - Wikipedia

    en.wikipedia.org/wiki/Open_energy_system_models

    Open energy-system models capture some or all of the energy commodities found in an energy system. Typically models of the electricity sector are always included. Some models add the heat sector, which can be important for countries with significant district heating. Other models add gas networks.

  8. Prospective Outlook on Long-term Energy Systems - Wikipedia

    en.wikipedia.org/wiki/Prospective_Outlook_on...

    Prospective Outlook on Long-term Energy Systems (POLES) is a world simulation model for the energy sector that runs on the Vensim software.It is a techno-economic model with endogenous projection of energy prices, a complete accounting of energy demand and supply of numerous energy vectors and associated technologies, and a carbon dioxide and other greenhouse gases emissions module.

  9. List of atmospheric dispersion models - Wikipedia

    en.wikipedia.org/wiki/List_of_atmospheric...

    LAPMOD (Italy) – The LAPMOD (LAgrangian Particle MODel) modeling system is developed by Enviroware and it is available for free. [3] LAPMOD is a Lagrangian partile model fully coupled to the diagnostic meteorological model CALMET and can be used to simulate the dispersion of inert pollutants as well as odors and radioactive substances.