Search results
Results From The WOW.Com Content Network
The difference is quite significant when dealing with gases, and it is very important to specify which quantity is being used. For example, the conversion factor between a mass fraction of 1 ppb and a mole fraction of 1 ppb is about 4.7 for the greenhouse gas CFC-11 in air (Molar mass of CFC-11 / Mean molar mass of air = 137.368 / 28.97 = 4.74 ...
0.1 × ( 12 ÷ 8 ) = 0.15 grain per dscf when corrected to a gas having a specified reference CO 2 content of 12 volume %. Notes: Although ppmv and grains per dscf have been used in the above examples, concentrations such as ppbv (i.e., parts per billion by volume), volume percent, grams per dscm and many others may also be used.
PPM Star Catalogue of 378,910 stars' positions and proper motions Proton precession magnetometer , measures small magnetic field variations Pulse-position modulation of a signal
PPB can stand for: Production possibility boundary , a concept in economics; Parts per billion, describing small values of miscellaneous dimensionless quantities;
If no exponent is written then the multiplicity is 1 (since p = p 1). The multiplicity of a prime which does not divide n may be called 0 or may be considered undefined. Ω(n), the prime omega function, is the number of prime factors of n counted with multiplicity (so it is the sum of all prime factor multiplicities). A prime number has Ω(n) = 1.
Keep scrolling to see our picks for the best New Year's deals at Amazon to add to your cart, stat. Popular Amazon deals: Apple AirTags, 4-pack for $73 (was $99) : Near all-time low
HP-19B, introduced on 4 January 1988, along with the HP-17B, HP-27S and the HP-28S, and replaced by the HP-19BII (F1639A) in January 1990, [2] was a simplified Hewlett Packard business model calculator, like the 17B.
We're big on investing in products that will make our beauty routine simpler, so, after seeing what the Shark HyperAir dryer can do on TikTok—and peeping the price it's at for Prime Big Deal Days 2