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  2. Free-energy perturbation - Wikipedia

    en.wikipedia.org/wiki/Free-energy_perturbation

    Free-energy perturbation (FEP) is a method based on statistical mechanics that is used in computational chemistry for computing free-energy differences from molecular dynamics or Metropolis Monte Carlo simulations. The FEP method was introduced by Robert W. Zwanzig in 1954. [1]

  3. Fluorinated ethylene propylene - Wikipedia

    en.wikipedia.org/wiki/Fluorinated_ethylene_propylene

    Fluorinated ethylene propylene was invented by DuPont and is sold under the brandname Teflon FEP. Other brandnames are Neoflon FEP from Daikin or Dyneon FEP from Dyneon/3M. FEP is very similar in composition to the fluoropolymers PTFE (polytetrafluoroethylene) and PFA (perfluoroalkoxy polymer resin). FEP and PFA both share PTFE's useful ...

  4. Integrated electric propulsion - Wikipedia

    en.wikipedia.org/wiki/Integrated_electric_propulsion

    An example of integrated electric propulsion in the Type 45 destroyer (GT: gas turbine; DG: diesel generator) Integrated electric propulsion (IEP), full electric propulsion (FEP) or integrated full electric propulsion (IFEP) is an arrangement of marine propulsion systems such that gas turbines or diesel generators or both generate three-phase [1] electricity which is then used to power ...

  5. General Electric LMS100 - Wikipedia

    en.wikipedia.org/wiki/General_Electric_LMS100

    The LMS100 PB gas turbine uses dry low NOx (DLE) combustors. The first LMS100 PB unit entered commercial operation in 2013. [4] See also. Related development.

  6. Free-piston linear generator - Wikipedia

    en.wikipedia.org/wiki/Free-piston_linear_generator

    The free-piston linear generator (FPLG) uses chemical energy from fuel to drive magnets through a stator and converts this linear motion into electric energy. Because of its versatility, low weight and high efficiency, it can be used in a wide range of applications, although it is of special interest to the mobility industry as range extenders for electric vehicles.

  7. Front-end loading - Wikipedia

    en.wikipedia.org/wiki/Front-end_loading

    Front-end loading (FEL), also referred to as Front-End Engineering Design (FEED), Front End Planning (FEP), pre-project planning (PPP), and early project planning, is the process for conceptual development of projects in processing industries such as upstream oil and gas, petrochemical, natural gas refining, extractive metallurgy, waste-to-energy, biotechnology, and pharmaceuticals.

  8. Nanogenerator - Wikipedia

    en.wikipedia.org/wiki/Nanogenerator

    LING is a 2-dimensional configuration consisting of three parts: the base electrode, the laterally grown piezoelectric nanostructure, and the metal electrode for schottky contact. In most cases, the thickness of the substrate film is thicker than the diameter of the piezoelectric nanostructure. LING is an expansion of the single wire generator ...

  9. Iron phosphide - Wikipedia

    en.wikipedia.org/wiki/Iron_phosphide

    Iron phosphide is a chemical compound of iron and phosphorus, with a formula of FeP.< [1] Its physical appearance is grey needles. Manufacturing of iron phosphide takes place at elevated temperatures, where the elements combine directly. [1] Iron phosphide reacts with moisture and acids producing phosphine (PH 3), a toxic and pyrophoric gas.