arithmetic mean
A Dictionary of Business and Management
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2006
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© A Dictionary of Business and Management 2006, originally published by Oxford University Press 2006. (Hide copyright information)
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arithmetic mean (arithmetic average) An average obtained by adding together the individual numbers concerned and dividing the total by their number. For example, the arithmetic mean of 7, 20, 107, and 350 is 484/4 = 121. This value, however, gives no idea of the spread of numbers. Compare
geometric mean;
median;
weighted average. See also
normal distribution.
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Measurements of Vapor Pressures of Sc, La, and Ce by Multi-Knudsen Cell Mass Spectrometry
Magazine article from: Metallurgical and Materials Transactions; 10/1/2009; ; 700+ words
; The vapor pressures of Sc, La, and Ce were...literature. The vapor pressure of Sc at temperatures from...From the measured vapor pressures, the Gibbs energy of formation...demonstrated that the vapor pressure of yttrium (Y) could...
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Vapor pressure measurement of supercooled water
Magazine article from: Journal of the Atmospheric Sciences; 8/1/2003; ; 700+ words
; ...subfreezing temperature application. Vapor pressure of supercooled water was determined...completely satisfactory formula for the vapor pressure over liquid water at a temperature...for reliable measurement of the vapor pressure of supercooled water was mentioned...
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Measurements of the Vapor Pressure of Supercooled Water Using Infrared Spectroscopy
Magazine article from: Journal of Atmospheric and Oceanic Technology; 9/1/2008; ; 700+ words
; ...most measurements of the vapor pressure are limited to temperatures...measurements of the vapor pressure of water from 0 to -22C...measured the difference in vapor pressures of supercooled water and ice...used to evaluate the vapor pressure of the liquid once that of...
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 "Star Tribune (Minneapolis, MN)")
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MOTORING; Vapor pressure will vary.(BUSINESS)
Newspaper article from: Star Tribune (Minneapolis, MN); 12/18/2008; ; 700+ words
; ...winter, but the gasoline's vapor pressure does. The easiest way to understand...temperatures are high, gasoline with vapor pressure approaching atmospheric pressure...temperatures drop below zero, too low a vapor pressure may prevent the fuel from vaporizing...
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Antoine coefficients for vapor pressure of the elements: a comprehensive tabulation for all the important elements from Ac to Zr.(Engineering Practice)
Magazine article from: Chemical Engineering; 11/1/2006; ; 700+ words
; Vapor pressure is important to engineers throughout...emissions into the environment. Results for vapor pressure as a function of temperature are presented...simulation applications. Correlation of vapor pressure The Antoine equation was selected for...
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A Simple Approach to Vapor Pressure Prediction
Magazine article from: Chemical Engineering Progress; 1/1/2007; ; 700+ words
; ...This method reproduces the vapor pressure predictions of the Soave...formulae omitted.) Vapor pressure is a fundamental property...are used to evaluate vapor pressures of chemical substances without...and charts that list vapor pressure or boiling point among their...
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Vapor pressure.(heat treating)(Report)
Magazine article from: Advanced Materials & Processes; 3/1/2007; 700+ words
; ...have relatively high vapor pressures; if heated above a...at which the vapor pressure of the element exceeds...degrees]F) at a pressure of 13 mPa ([10...temperature or lower pressure for an adequate period...disappear, and the vapors would condense on the...Backfill or higher ...
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Vapor pressure.(TECH NOTES)(proper usage of vacuum furnaces)(Report)
Magazine article from: Advanced Materials & Processes; 7/1/2007; ; 700+ words
; ...degrees]F, the boiling point or vapor pressure point is one micron Hg or [10...000 times the vapor point) Water vapor: The common compound water is...temperature of 68[degrees]F, the vapor pressure or boiling point of water is approximately...
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Publication No. WO/2009/107598 Published on Sept. 3, Assigned to Aisan Kogyo Kabushiki Kaisha for Fuel Vapor Pressure Measuring Device (Japanese Inventors)
News Wire article from: US Fed News Service, Including US State News; 9/8/2009; 501 words
; ...Japan, have developed a fuel vapor pressure measuring device. The patent...other end connected to the fuel vapor generating section, a pressure sensor for detecting the pressure in the fuel vapor generating section, and an...
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California, Massachusetts, Florida Inventors Develop High Vapor Pressure Attenuation Device
News Wire article from: US Fed News Service, Including US State News; 6/27/2008; 531 words
; ...Fort Lauderdale, Fla., have developed a high vapor pressure attenuation device. According to the U.S...device, comprising a flexible housing and a high vapor pressure media having a vapor pressure approximately equal to the intravesical...
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Vapor Pressure
Encyclopedia entry from: The Gale Encyclopedia of Science
Vapor Pressure Vapor pressure is the pressure that occurs because of the formation of vapor...and millimeters of mercury (mm Hg or torr). For instance, the vapor pressure of water at 68 ° F (20 ° C) is 0.023 atm (17...
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vapor pressure
Book article from: The Columbia Encyclopedia, Sixth Edition
...equilibrium ). The vapor, like any gas, exerts...vapor pressure. Vapor pressure depends on various...consequent lower vapor pressure; for example, polar...relatively low vapor pressures. If there is only...also have significant vapor pressures under ...
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vapor
Book article from: The Oxford Pocket Dictionary of Current English
...dense clouds of smoke and toxic vapor | chemical vapors. ∎ Physics a...and can therefore be liquefied by pressure alone. Compare with gas . ∎ ( the vapors ) dated a sudden feeling of faintness...
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Humidity
Book article from: World of Earth Science
...the quantity of water vapor in the air. There are...Because water vapor exerts a pressure, the presence of water...air contributes vapor pressure to the over-all atmospheric pressure . Actual vapor pressures are measured in millibars...
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Climate Moderator, Water as a
Book article from: Water:Science and Issues
...little. One measure of the actual amount of water vapor in the air is vapor pressure, which is a measure of the number of water molecules...Descending air warms, and as it does, the saturation vapor pressure increases. But because no water is being added...
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