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  2. Non-revenue water - Wikipedia

    en.wikipedia.org/wiki/Non-revenue_water

    In the United States the American Water Works Association's (AWWA) Water Loss Control Committee recommended in 2009 that water utilities conduct annual water audits as a standard business practice. AWWA recommends that water utilities should track volumes of apparent and real losses and the annual cost impacts of these losses.

  3. Souders–Brown equation - Wikipedia

    en.wikipedia.org/wiki/Souders–Brown_equation

    In chemical engineering, the Souders–Brown equation (named after Mott Souders and George Granger Brown [1] [2]) has been a tool for obtaining the maximum allowable vapor velocity in vapor–liquid separation vessels (variously called flash drums, knockout drums, knockout pots, compressor suction drums and compressor inlet drums).

  4. Manning formula - Wikipedia

    en.wikipedia.org/wiki/Manning_formula

    The discharge formula, Q = A V, can be used to rewrite Gauckler–Manning's equation by substitution for V. Solving for Q then allows an estimate of the volumetric flow rate (discharge) without knowing the limiting or actual flow velocity. The formula can be obtained by use of dimensional analysis.

  5. American Water Works Association - Wikipedia

    en.wikipedia.org/wiki/American_Water_Works...

    American Water Works Association (AWWA) is an international non-profit, scientific and educational association founded to improve water quality and supply. Established in 1881, it is a lobbying organization representing a membership (as of 2024) of around 50,000 members worldwide.

  6. Permissible stress design - Wikipedia

    en.wikipedia.org/wiki/Permissible_stress_design

    Wood, steel, and other materials are still frequently designed using allowable stress design, although LRFD is probably more commonly taught in the USA university system. In mechanical engineering design such as design of pressure equipment, the method uses the actual loads predicted to be experienced in practice to calculate stress and ...

  7. Police Searching for Missing Sisters Who Vanished After Night ...

    www.aol.com/police-searching-missing-sisters...

    Police in Scotland are continuing to search for two sisters after they were last seen walking near a river three days ago. On Thursday, Jan. 9, Police Scotland issued an appeal to trace 32-year ...

  8. Trump says he'll visit California on Friday to survey ...

    www.aol.com/trump-says-hell-visit-california...

    The remarks come over a week after California Gov. Gavin Newsom invited Trump to visit the state and meet the victims impacted by the wildfires.

  9. Barlow's formula - Wikipedia

    en.wikipedia.org/wiki/Barlow's_formula

    Barlow's formula (called "Kesselformel" [1] in German) relates the internal pressure that a pipe [2] can withstand to its dimensions and the strength of its material. This approximate formula is named after Peter Barlow , an English mathematician .