at zero pressure

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• Pressure measurement — The construction of a bourdon tube gauge, construction elements are made of brass Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure pressure are called pressure gauges or vacuum gauges. A… …   Wikipedia

• Zero waste — is a philosophy that aims to guide people in the redesign of their resource use system with the aim of reducing waste to zero. Put simply, zero waste is an idea to extend the current ideas of recycling to form a circular system where as much… …   Wikipedia

• Zero-point energy — is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical systems undergo fluctuations even in their ground state and have an associated zero point energy, a… …   Wikipedia

• Zero tolerance — policies are studied in criminology and are common in formal and informal policing systems around the world.Fact|date=December 2007 The policies also appear in informal situations where there may be sexual harassment or Internet misuse in… …   Wikipedia

• Pressure head — is a term used in fluid mechanics to represent the internal energy of a fluid due to the pressure exerted on its container. It may also be called static pressure head or simply static head (but not static head pressure). It is mathematically… …   Wikipedia

• Zero Moment Point — is a concept related with dynamics and control of legged locomotion, e.g., for humanoid robots. It specifies the point with respect to which dynamic reaction force at the contact of the foot with the ground does not produce any moment, i.e. the… …   Wikipedia

• Pressure coefficient — The pressure coefficient is a dimensionless number which describes the relative pressures throughout a flow field in fluid dynamics. The pressure coefficient is used in aerodynamics and hydrodynamics. Every point in a fluid flow field has its own …   Wikipedia

• zero-delivery pressure — The pressure delivered by a variable displacement pump when no services are being operated. It is the normal operating mode, with a zero stroke, when no system is being operated. The swash plate in this case has a positive angle of inclination… …   Aviation dictionary

• Zero Patience — Infobox Film name = Zero Patience caption = Original theatrical poster director = John Greyson producer = Alexandra Raffé (executive producer) Louise Garfield Anna Stratton writer = John Greyson starring = John Robinson Normand Fauteux Dianne… …   Wikipedia

• Zero-point field — In quantum field theory, the zero point field is the lowest energy state of a field, i.e. its ground state, which is non zero. [cite book | last = Gribbin | first = John | title = Q is for Quantum An Encyclopedia of Particle Physics | publisher …   Wikipedia

• pressure — 1. A stress or force acting in any direction against resistance. 2. (P, frequently followed by a subscript indicating location)In physics and physiology, the force per unit area exerted by a gas or liquid against the walls of its container or… …   Medical dictionary