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Tolerance interval. A tolerance interval ( TI) is a statistical interval within which, with some confidence level, a specified sampled proportion of a population falls. "More specifically, a 100×p%/100× (1−α) tolerance interval provides limits within which at least a certain proportion ( p) of the population falls with a given level of ...
The Atterberg limits can be used to distinguish between silt and clay and to distinguish between different types of silts and clays. The water content at which soil changes from one state to the other is known as consistency limits, or Atterberg's limit. These limits were created by Albert Atterberg, a Swedish chemist and agronomist, in 1911. [1]
A factor f c gives the ratio of recombination that produces radiation to total recombination, so the rate of recombination per unit area when V = 0 is 2t c Q c /f c and thus depends on Q c, the flux of blackbody photons above the band-gap energy. The factor of 2 was included on the assumption that radiation emitted by the cell goes in both ...
Lower flammability limit (LFL): The lowest concentration (percentage) of a gas or a vapor in air capable of producing a flash of fire in the presence of an ignition source (arc, flame, heat). The term is considered by many safety professionals to be the same as the lower explosive level (LEL). At a concentration in air lower than the LFL, gas ...
In order to price policies with high limits of insurance adequately, actuaries may first determine a "basic limit" premium and then apply increased limits factors. The basic limit is a lower limit of liability under which there is a more credible amount of data. For example, basic limit loss costs or rates may be calculated for many territories ...
The concept of fatigue limit, and thus standards based on a fatigue limit such as ISO 281:2007 rolling bearinglifetime prediction, remains controversial, at least in the US. [15][16] Modifying factors of fatigue limit. [edit] The fatigue limit of a machine component, Se, is influenced by a series of elements named modifying factors.
A confidence interval for the parameter , with confidence level or coefficient , is an interval determined by random variables and with the property: The number , whose typical value is close to but not greater than 1, is sometimes given in the form (or as a percentage ), where is a small positive number, often 0.05.
Homer and others (2007) indicate that about 76 percent of the conterminous United States is classified as having less than 1 percent impervious cover, 11 percent with impervious cover of 1 to 10 percent, 4 percent with an estimated impervious cover of 11 to 20 percent, 4.4 percent with an estimated impervious cover of 21 to 40 percent, and ...