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hydraulic theory

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  • Hydraulic fluid — Hydraulic fluids are a large group of fluids used as the motive medium in hydraulic machinery. Fluid types include synthetic compounds, mineral oil, water, and water based mixtures. The fluids are found in machinery and equipment ranging from… …   Wikipedia

  • Hydraulic fracturing — is a method used to create fractures that extend from a borehole into rock formations, which are typically maintained by a proppant. The method is informally called fracing or hydrofrac. The technique is used to increase or restore the rate which …   Wikipedia

  • Hydraulic ram — A hydraulic ram is a cyclic water pump powered by hydropower. It functions as a hydraulic transformer that takes in water at one hydraulic head and flow rate, and outputs water at a different hydraulic head and flow rate. The device utilizes a… …   Wikipedia

  • Hydraulic analogy — The electronic–hydraulic analogy (derisively referred to as the drain pipe theory by Oliver Heaviside) is the most widely used analogy for electron fluid in a metal conductor. Since electric current is invisible and the processes at play in… …   Wikipedia

  • Hydraulic jump — A hydraulic jump is a phenomenon in the science of hydraulics which is frequently observed in open channel flow such as rivers and spillways. When liquid at high velocity discharges into a zone of lower velocity, a rather abrupt rise (a step or… …   Wikipedia

  • Hydraulic circuit — A hydraulic circuit is an interconnected set of components that convert pressurized liquid (usually oil) into mechanical work.ComponentsThe circuit comprises the following components:* Active components ** Power pack * Transmission lines **… …   Wikipedia

  • Circuit theory — For the theory of monetary economics, see monetary circuit theory. Circuit theory is the theory of accomplishing work by means of routing matter through a loop.[citation needed] The types of matter used are: In electronic or electrical circuits:… …   Wikipedia

  • Metabolic theory of ecology — The metabolic theory of ecology (MTE) is an extension of Kleiber s law and posits that the metabolic rate of organisms is the fundamental biological rate that governs most observed patterns in ecology.[1] MTE is based on an interpretation of the… …   Wikipedia

  • Fluid theory of electricity — The fluid theory of electricity is a now defunct theory that postulated an electrical fluid which was responsible for many electrical phenomenon. Although he was not the first proponent, Benjamin Franklin worked to develop the theory. The Leyden… …   Wikipedia

  • Dynastic Race Theory — The Dynastic Race Theory was the earliest thesis to attempt to explain how predynastic Egypt developed into the Pharonic monarchy. It argued that the presence of many Mesopotamian influences in Egypt during the late predynastic period and the… …   Wikipedia

  • Chinese historiography — History of China ANCIENT …   Wikipedia

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