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  2. Drainage equation - Wikipedia

    en.wikipedia.org/wiki/Drainage_equation

    d = equivalent depth, a function of L, (Di-Dd), and r; r = drain radius (m) Steady (equilibrium) state condition In steady state, the level of the water table remains constant and the discharge rate (Q) equals the rate of groundwater recharge (R), i.e. the amount of water entering the groundwater through the watertable per unit of time.

  3. Quasistatic process - Wikipedia

    en.wikipedia.org/wiki/Quasistatic_process

    For example, quasi-static compression of a system by a piston subject to friction is irreversible; although the system is always in internal thermal equilibrium, the friction ensures the generation of dissipative entropy, which goes against the definition of reversibility. Any engineer would remember to include friction when calculating the ...

  4. Tile drainage - Wikipedia

    en.wikipedia.org/wiki/Tile_drainage

    For example, nitrogen has been implicated in the gulf hypoxia. Drainage tile sometimes increases water quality because the water flows into the ground, then the tile, instead of running off the field into a ditch, carrying soil and nutrients with it. The soil can filter the water before it enters the streams and rivers.

  5. Dissipative system - Wikipedia

    en.wikipedia.org/wiki/Dissipative_system

    A tornado may be thought of as a dissipative system. Dissipative systems stand in contrast to conservative systems. A dissipative structure is a dissipative system that has a dynamical regime that is in some sense in a reproducible steady state. This reproducible steady state may be reached by natural evolution of the system, by artifice, or by ...

  6. Dissipation - Wikipedia

    en.wikipedia.org/wiki/Dissipation

    In thermodynamics, dissipation is the result of an irreversible process that affects a thermodynamic system.In a dissipative process, energy (internal, bulk flow kinetic, or system potential) transforms from an initial form to a final form, where the capacity of the final form to do thermodynamic work is less than that of the initial form.

  7. List of spreadsheet software - Wikipedia

    en.wikipedia.org/wiki/List_of_spreadsheet_software

    Sourcetable [9] – AI spreadsheet that generates formulas, charts, SQL, and analyzes data. ThinkFree Online Calc – as part of the ThinkFree Office online office suite, using Java Quadratic - A source available online spreadsheet for technical users, supporting Python, SQL, and Formulas.

  8. Gender identity question, ethnicity option among new ... - AOL

    www.aol.com/gender-identity-ethnicity-option...

    Following new federal standards and field testing, new questions about sexual orientation, gender, and race and ethnicity will be added to the Census.

  9. List of aperiodic sets of tiles - Wikipedia

    en.wikipedia.org/.../List_of_aperiodic_sets_of_tiles

    An example of such a tiling is shown in the adjacent diagram (see the image description for more information). A tiling that cannot be constructed from a single primitive cell is called nonperiodic. If a given set of tiles allows only nonperiodic tilings, then this set of tiles is called aperiodic . [ 3 ]