dimensionless unit
11SI derived unit — The International System of Units (SI) specifies a set of seven base units from which all other units of measurement are formed, by products of the powers of base units. These other units are called SI derived units, for example, the SI derived… …
12Mole (unit) — This article is about physical quantity measurement unit. For other uses, see Mole (disambiguation). The mole is a unit of measurement used in chemistry to express amounts of a chemical substance, defined as an amount of a substance that contains …
13Darwin (unit) — The Darwin (d) is a unit of evolutionary change, defined by J.B.S. Haldane in 1949[1]. One Darwin is defined to be an e fold (about 2.718) change in a trait over one million years. Haldane named the unit after Charles Darwin. Contents 1 Equation… …
14Optical unit — The Optical Unit is a dimensionless units of length used in optical microscopy. Because every diffraction limited system have their resolution proportional to wavelength / NA, it is convenient for comparison to use this unit. There are actually 2 …
15Non-SI units mentioned in the SI — This is a list of units that are not defined as part of the International System of Units (SI), but are otherwise mentioned in the SI[1][2], because either the General Conference on Weights and Measures (CGPM) accepts their use as being multiples …
16List of unusual units of measurement — For units of measure primarily used in countries where English is not the main language, see the article specific to that country, a list of which can be found in the systems of measurement article. An unusual unit of measurement is a unit of… …
17New SI definitions — The seven SI base units and the interdependency of their current definitions A committee of the International Committee for Weights and Measures (CIPM) has proposed revised formal definitions of the SI base units, which are being examined by the… …
18Neper — This article is about unit of measurement. For other uses, see Neper (disambiguation). The neper is a logarithmic unit for ratios of measurements of physical field and power quantities, such as gain and loss of electronic signals. It has the unit …
19point — (pt) 1. a unit of angle measure equal to 1/32 of a circle. Compasses are read by suspending the compass needle over a compass card traditionally inscribed with a 32 point star. Each point of the star represents a named direction; for example,… …
20dBm — For other uses, see DBM (disambiguation). A schematic showing the relationship between dBu (the voltage source) and dBm (the power dissipated as heat by the 600 Ω resistor) dBm (sometimes dBmW) is an abbreviation for the power ratio in decibels… …
