Search results
Results from the WOW.Com Content Network
The sodium adsorption ratio (SAR) is an irrigation water quality parameter used in the management of sodium-affected soils. It is an indicator of the suitability of water for use in agricultural irrigation , as determined from the concentrations of the main alkaline and earth alkaline cations present in the water.
When measuring the SAR due to a mobile phone the phone is placed against a representation of a human head (a "SAR Phantom") in a talk position. The SAR value is then measured at the location that has the highest absorption rate in the entire head, which in the case of a mobile phone is often as close to the phone's antenna as possible.
A series of old Babylonian weights ranging from 1 mina to 3 shekels. Mass was measured by the EN system E. Values below are an average of weight artifacts from Ur and Nippur. The ± value represents 1 standard deviation. All values have been rounded to second digit of the standard deviation.
The structure–activity relationship (SAR) is the relationship between the chemical structure of a molecule and its biological activity. This idea was first presented by Alexander Crum Brown and Thomas Richard Fraser at least as early as 1868.
Most commonly, the quantity measures the exponential decay of intensity, that is, the value of downward e-folding distance of the original intensity as the energy of the intensity passes through a unit (e.g. one meter) thickness of material, so that an attenuation coefficient of 1 m −1 means that after passing through 1 metre, the radiation ...
9.1 US dollar as exchange rate anchor. 9.2 Composite exchange rate anchor. 9.3 Monetary aggregate target. 9.4 Inflation-targeting framework. 9.5 Other. 10 Floating.
If a negative value is found for AFN, that means that the action would generate extra income that could be invested elsewhere. The AFN equation is as follows: AFN = (A*/S 0)ΔS – (L*/S 0)ΔS – MS 1 (RR) [1] Where: A* = Assets tied directly to sales and will increase L* = Spontaneous liabilities that will be affected by sales.
For a first-order reaction, it has units of s −1. For that reason, it is often called frequency factor . According to collision theory , the frequency factor, A, depends on how often molecules collide when all concentrations are 1 mol/L and on whether the molecules are properly oriented when they collide.