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In non ideal fluid dynamics, the Hagen–Poiseuille equation, also known as the Hagen–Poiseuille law, Poiseuille law or Poiseuille equation, is a physical law that gives the pressure drop in an incompressible and Newtonian fluid in laminar flow flowing through a long cylindrical pipe of constant cross section.
The role of growth imperatives for the increase in the global gross domestic product per capita is disputed.. Growth imperative is a term in economic theory regarding a possible necessity of economic growth.
q is the dynamic pressure in pascals (i.e., N/m 2, ρ (Greek letter rho) is the fluid mass density (e.g. in kg/m 3), and; u is the flow speed in m/s. It can be thought of as the fluid's kinetic energy per unit volume. For incompressible flow, the dynamic pressure of a fluid is the difference between its total pressure and static pressure.
Pressure is a 2014 play written by David Haig, based on true events that took place during World War II. It centres on the true story of James Stagg and the weather forecasts that determined the date of the D-Day landings as part of Operation Overlord. The personal and military stresses of Stagg, the tensions between the teams with different ...
A microwave system uses amplifiers that output up to 200 watts of power radio frequency (RF) power to produce the arc that generates plasma. Most solutions work at 2.45 GHz. A new technology provides ignition and highly efficient operation with the same electronic and couple network. [9] This kind of atmospheric-pressure plasmas is different.
Power vacuums often occur in failed states sometimes referred to as Fragile states where the state has lost the power to prevent its citizens from forming states within states, such as in post-communist Moldova's Transnistria. The ongoing war in Sudan is an example of a power vacuum in the aftermath of the Sudanese revolution. [6]