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  2. List of airports by ICAO code: E - Wikipedia

    en.wikipedia.org/wiki/List_of_airports_by_ICAO...

    FEL: Fürstenfeldbruck Air Base: ... EVAD: Adaži Airfield: Ādaži: EVAP: AMO Plant Heliport ... Text is available under the Creative Commons Attribution-ShareAlike ...

  3. Front-end loading - Wikipedia

    en.wikipedia.org/wiki/Front-end_loading

    Front-end loading (FEL), also referred to as Front End Planning (FEP), pre-project planning (PPP), feasibility analysis, conceptual planning, programming/schematic design 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 ...

  4. Free-electron laser - Wikipedia

    en.wikipedia.org/wiki/Free-electron_laser

    A free-electron laser (FEL) is a fourth generation light source producing extremely brilliant and short pulses of radiation. An FEL functions much as a laser but employs relativistic electrons as a gain medium instead of using stimulated emission from atomic or molecular excitations.

  5. Front-end engineering - Wikipedia

    en.wikipedia.org/wiki/Front-end_engineering

    FEE Methodology: [3] FEE is a way of looking at a project before completing detailed design. There is no set way to conduct a Front-End Engineering study. Generally, FEE requires an engineer or a group of engineers to thoroughly and logically consider a proposed project.

  6. Self-amplified spontaneous emission - Wikipedia

    en.wikipedia.org/wiki/Self-Amplified_Spontaneous...

    Self-amplified spontaneous emission (SASE) is a process within a free-electron laser (FEL) by which a laser beam is created from a high-energy electron beam. [1] [2] The SASE process starts with an electron bunch being injected into an undulator, with a velocity close to the speed of light and a uniform density distribution within the bunch.

  7. Classes of offenses under United States federal law - Wikipedia

    en.wikipedia.org/wiki/Classes_of_offenses_under...

    Maximum supervised release term [4] [note 3] Maximum prison term upon supervised release revocation [5] Special assessment [6] [note 4] Felony A Life imprisonment (or death in certain cases of murder, treason, espionage or mass trafficking of drugs) $250,000: 1-5 years: 5 years: 5 years: $100 B 25 years or more: $250,000: 5 years: 3 years: $100 C

  8. Allergy to cats - Wikipedia

    en.wikipedia.org/wiki/Allergy_to_cats

    Fel d 4 and Fel d 7 are cat lipocalins. Fel d 4 and Fel d 7 are two of the most common cat allergens after Fel d 1. Fel d 4 is produced in the submandibular salivary glands and is secreted in the saliva of cats, via which it is deposited on to cat dander during grooming, [6] and is associated with atopic dermatitis in children with cat ...

  9. Four-current - Wikipedia

    en.wikipedia.org/wiki/Four-current

    This can also be expressed in terms of the four-velocity by the equation: [2] [3] = = where: is the charge density measured by an inertial observer O who sees the electric current moving at speed u (the magnitude of the 3-velocity);