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  • equals
  • The law states that the sum of the pressures of each component in a substance equals the pressure of the entire substance. (reference.com)
  • For example, given an ideal gas mixture of nitrogen (N2), hydrogen (H2) and ammonia (NH3): p = p N 2 + p H 2 + p NH 3 {\displaystyle p=p_{{\ce {N2}}}+p_{{\ce {H2}}}+p_{{\ce {NH3}}}} Ideally the ratio of partial pressures equals the ratio of the number of molecules. (wikipedia.org)
  • Eventually the dissolved CO2 and the CO2 in the headspace above the liquid reach a dynamic equilibrium, where the amount of CO2 dissolving in the liquid equals the amount of CO2 escaping the solution into the headspace, at a pressure of approximately 2 atmospheres. (wikipedia.org)
  • lungs
  • I assume that the rupture of this equilibrium which happens when divers go back to the surface too quickly is related to gaz pressure at the lungs level. (biology-online.org)
  • theoretical modelling of decompression physiology Decompression theory is the study and modelling of the transfer of the inert gas component of breathing gases from the gas in the lungs to the tissues and back during exposure to variations in ambient pressure. (wikipedia.org)
  • Inert gas continues to be taken up until the gas dissolved in the tissues is in a state of equilibrium with the gas in the lungs, (see: "Saturation diving"), or the ambient pressure is reduced until the inert gases dissolved in the tissues are at a higher concentration than the equilibrium state, and start diffusing out again. (wikipedia.org)
  • This is known as outgassing, and occurs during decompression, when the reduction in ambient pressure or a change of breathing gas reduces the partial pressure of the inert gas in the lungs. (wikipedia.org)
  • exposures
  • Hyperbaric treatment schedules or hyperbaric treatment tables, are planned sequences of events in chronological order for hyperbaric pressure exposures specifying the pressure profile over time and the breathing gas to be used during specified periods, for medical treatment. (wikipedia.org)
  • vapour
  • Vacuum processing is an essential element of diverse chemical, metallurgical and electronics-related procedures including vacuum furnacing, chemical vapour deposition, surface etching and evaporative coating, with process pressures ranging from ultrahigh vacuum (UHV) through to millitorr. (technologynetworks.com)
  • Underwater diving portal Raoult's law Henry's law Amagat's law Boyle's law Combined gas law Gay-Lussac's law Mole (unit) Partial pressure Vapour pressure Silberberg, Martin S. (2009). (wikipedia.org)
  • ambient
  • ambient pressure Pressure of the surroundings. (wikipedia.org)
  • The term "decompression" derives from the reduction in ambient pressure experienced by the organism and refers to both the reduction in pressure and the process of allowing dissolved inert gases to be eliminated from the tissues during and after this reduction in pressure. (wikipedia.org)
  • The uptake of gas by the tissues is in the dissolved state, and elimination also requires the gas to be dissolved, however a sufficient reduction in ambient pressure may cause bubble formation in the tissues, which can lead to tissue damage and the symptoms known as decompression sickness, and also delays the elimination of the gas. (wikipedia.org)
  • Decompression modeling attempts to explain and predict the mechanism of gas elimination and bubble formation within the organism during and after changes in ambient pressure,and provides mathematical models which attempt to predict acceptably low risk and reasonably practicable procedures for decompression in the field. (wikipedia.org)
  • Gas is breathed at ambient pressure, and some of this gas dissolves into the blood and other fluids. (wikipedia.org)
  • When the pressure of gases in a bubble exceed the combined external pressures of ambient pressure and the surface tension from the bubble - liquid interface, the bubbles will grow, and this growth can cause damage to tissues. (wikipedia.org)
  • hyperbaric
  • Protocols for avoidance of the effects of hyperoxia exist in fields where oxygen is breathed at higher-than-normal partial pressures, including underwater diving using compressed breathing gases, hyperbaric medicine, neonatal care and human spaceflight. (wikipedia.org)
  • Decompression
  • In all cases, the symptoms caused by decompression occur during or within a relatively short period of hours, or occasionally days, after a significant pressure reduction. (wikipedia.org)
  • In the study of decompression theory the behaviour of gases dissolved in the tissues is investigated and modeled for variations of pressure over time. (wikipedia.org)
  • Although recompression and slow decompression were the accepted treatment, there was not yet a standard for either the recompression pressure or the rate of decompression. (wikipedia.org)
  • vapor
  • A partial pressure sensor is disclosed which is suitable for determining the partial pressure of a gas or vapor in a thermally uncontrolled gas atmosphere over a large measurement range and with high measuring accuracy. (patentgenius.com)
  • 9. The optical partial pressure sensor of claim 5 wherein said absorption of gas includes an absorption of water vapor. (patentgenius.com)
  • The vapor pressure chart displayed has graphs of the vapor pressures versus temperatures for a variety of liquids. (wikipedia.org)
  • As can be seen in the chart, the liquids with the highest vapor pressures have the lowest normal boiling points. (wikipedia.org)
  • It also has the lowest normal boiling point (-24.2 °C), which is where the vapor pressure curve of methyl chloride (the blue line) intersects the horizontal pressure line of one atmosphere (atm) of absolute vapor pressure. (wikipedia.org)
  • substantially
  • In particular, the short average distances between molecules increases intermolecular forces between gas molecules enough to substantially change the pressure exerted by them, an effect not included in the ideal gas model. (wikipedia.org)
  • wherein
  • 2. The partial pressure sensor according to claim 1, wherein said optical coating system comprises a reflection system and wherein a function coating is arranged above said reflection system. (patentgenius.com)
  • 8. The optical partial pressure sensor of claim 5 wherein said transparent substrate sensor disk is made of glass. (patentgenius.com)
  • 11. The optical partial pressure sensor of claim 5 wherein said vacuum system is separated from said gas atmosphere using a vacuum seal rather than a physical member. (patentgenius.com)
  • normal
  • Rohrig also observes from experiment that the Fizz Keeper forms a poorer seal than the bottle's own screw cap, thus allowing CO2 to leak out, and the CO2 partial pressure to decrease, more quickly with the Fizz Keeper on a bottle than with the normal cap. (wikipedia.org)
  • cause
  • This alone is enough to cause a blackout, but it is widely believed that the effect is enhanced if lung air pressure is increased by holding the breath "hard" or "bearing down" (tightening the diaphragm as in a forced exhalation while allowing no air to escape or having an assistant apply a bear-hug). (wikipedia.org)
  • The Fizz Keeper does not cause that partial pressure to increase significantly. (wikipedia.org)
  • degrees
  • The varying degrees to which the different gases are absorbed and the influence of the gases on the optical characteristics of the coating system make it possible to deduce the partial pressure of an individual gascomponent. (patentgenius.com)
  • temperature
  • In one of its more specific aspects, the present invention relates to a method of and apparatus for determining tempera ture changes in a reaction zone wherein hydrocarbons are converted by partial oxidation at elevated temperature and pressure to carbon monoxide and hydrogen. (google.com.au)
  • Due to the fact that hydrogen at elevated temperature and pressure is very mobile and highly reactive, difiiculty has been experienced in maintaining thermocouples within the reaction-zone. (google.com.au)
  • We calculated partial correlations between cognitive status and temperature for patients with MS and HCs, controlling for demographic and disease variables. (blogspot.com)
  • For the longitudinal analysis, cognitive status and outdoor temperature were recorded at baseline and 6-month follow-up in a separate sample of 45 patients with MS. We calculated the partial correlation between temperature and cognitive status at follow-up, controlling for baseline temperature and cognitive status (i.e., whether temperature changes are related to cognitive changes within patients with MS). (blogspot.com)
  • This is the reason for island arc volcanism at consistent distances from the subducting slab: because the temperature-pressure conditions for flux-melting volcanism due to chlorite destabilization will always occur at the same depth, the distance from the trench to the arc volcanoes is determined only by the dip angle of the subducting slab. (wikipedia.org)
  • The magnetic field within the flux tube can be compressed by decreasing the gas pressure inside and therefore the internal temperature of the tube while maintaining a constant pressure outside. (wikipedia.org)
  • Granitic magmas provide additional examples of how melts of generally similar composition and temperature, but at different pressure, may crystallize different minerals. (wikipedia.org)
  • The heat of sublimation can also be determined by measuring the vapor pressure as a function of temperature, using the Clausius-Clapeyron relation. (wikipedia.org)
  • analogue
  • In differential geometry, the four-gradient (or 4-gradient) ∂ {\displaystyle \mathbf {\partial } } is the four-vector analogue of the gradient ∇ → {\displaystyle {\vec {\mathbf {\nabla } }}} from Gibbs-Heaviside vector calculus. (wikipedia.org)
  • effects
  • The covariant derivative ∇ ν {\displaystyle \nabla _{\nu }} incorporates the 4-gradient ∂ ν {\displaystyle \partial _{\nu }} plus spacetime curvature effects via the Christoffel symbols Γ μ σ ν {\displaystyle \Gamma ^{\mu }{}_{\sigma \nu }} The strong equivalence principle can be stated as: "Any physical law which can be expressed in tensor notation in SR has exactly the same form in a locally inertial frame of a curved spacetime. (wikipedia.org)
  • loss
  • In the subduction zone, loss of water from the subducted slab induces partial melting of the overriding mantle and generates low-density, calc-alkaline magma that buoyantly rises to intrude and be extruded through the lithosphere of the overriding plate. (wikipedia.org)
  • The vapor slowly effuses through the pinhole, and the loss of mass is proportional to the vapor pressure and can be used to determine this pressure. (wikipedia.org)