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  2. List of free electronics circuit simulators - Wikipedia

    https://en.wikipedia.org/wiki/List_of_free_electronics...

    List of free analog and digital electronic circuit simulators, available for Windows, macOS, Linux, and comparing against UC Berkeley SPICE. The following table is split into two groups based on whether it has a graphical visual interface or not.

  3. Simplified perturbations models - Wikipedia

    https://en.wikipedia.org/wiki/Simplified_perturbations...

    [1] [4] Current code libraries [5] [6] use SGP4 and SDP4 algorithms merged into a single codebase in 1990 [7] handling the range of orbital periods which are usually referred to generically as SGP4. [7]

  4. Orbital angular momentum of free electrons - Wikipedia

    https://en.wikipedia.org/wiki/Orbital_angular_momentum...

    Electrons in free space can carry quantized orbital angular momentum (OAM) projected along the direction of propagation. [1] This orbital angular momentum corresponds to helical wavefronts, or, equivalently, a phase proportional to the azimuthal angle. [2] Electron beams with quantized orbital angular momentum are also called electron vortex beams.

  5. Electronic circuit simulation - Wikipedia

    https://en.wikipedia.org/wiki/Electronic_circuit_simulation

    CircuitLogix electronics simulation software.. Electronic circuit simulation uses mathematical models to replicate the behavior of an actual electronic device or circuit. . Simulation software allows for the modeling of circuit operation and is an invaluable analy

  6. Electron orbital imaging - Wikipedia

    https://en.wikipedia.org/wiki/Electron_orbital_imaging

    Electron orbital imaging is an X-ray synchrotron technique used to produce images of electron (or hole) orbitals in real space. It utilizes the technique of X-ray Raman scattering (XRS), [1] also known as Non-resonant Inelastic X-Ray Scattering (NIXS) [2] to inelastically scatter electrons off a single crystal.

  7. Atomic orbital - Wikipedia

    https://en.wikipedia.org/wiki/Atomic_orbital

    Orbitals for ℓ > 3 continue alphabetically (g, h, i, k, ...), [3] omitting j [4] [5] because some languages do not distinguish between letters "i" and "j". [ 6 ] Atomic orbitals are basic building blocks of the atomic orbital model (or electron cloud or wave mechanics model), a modern framework for visualizing submicroscopic behavior of ...

  8. Empty lattice approximation - Wikipedia

    https://en.wikipedia.org/wiki/Empty_lattice_approximation

    The dispersion relations show conics of the free-electron energy dispersion parabolas for all possible reciprocal lattice vectors. This results in a very complicated set intersecting of curves when the dispersion relations are calculated because there is a large number of possible angles between evaluation trajectories, first and higher order ...

  9. Spin quantum number - Wikipedia

    https://en.wikipedia.org/wiki/Spin_quantum_number

    During the period between 1916 and 1925, much progress was being made concerning the arrangement of electrons in the periodic table.In order to explain the Zeeman effect in the Bohr atom, Sommerfeld proposed that electrons would be based on three 'quantum numbers', n, k, and m, that described the size of the orbit, the shape of the orbit, and the direction in which the orbit was pointing. [10]