density log

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• density log — n, = gamma gamma log measures electron density within lithologic units which is related to their bulk density. The wireline tool records the intensity of gamma radiation (in counts per second) from a nuclear source within the tool after it has… …   Coke&Coal Terminology

• Log-normal distribution — Probability distribution name =Log normal type =density pdf μ=0 cdf μ=0 parameters =sigma > 0 infty < mu < infty support = [0,+infty)! pdf =frac{1}{xsigmasqrt{2piexpleft [ frac{left(ln(x) mu ight)^2}{2sigma^2} ight] cdf =frac{1}{2}+frac{1}{2}… …   Wikipedia

• Log-logistic distribution — Probability distribution name =Log logistic type =density pdf cdf parameters =alpha>0 scale eta> 0 shape support =xin [0,infty) pdf = frac{ (eta/alpha)(x/alpha)^{eta 1} } { left [ 1+(x/alpha)^{eta} ight] ^2 } cdf ={ 1 over 1+(x/alpha)^{ eta} …   Wikipedia

• Log Lane Village, Colorado — Infobox Settlement official name = Town of Log Lane Village, Colorado other name = native name = nickname = settlement type = Town motto = imagesize = image caption = flag size = image seal size = image shield = shield size = image blank emblem …   Wikipedia

• Log Cabin, Texas — Infobox Settlement official name = Log Cabin, Texas settlement type = City nickname = motto = imagesize = image caption = image mapsize = 250px map caption = Location of Log Cabin, Texas mapsize1 = 250px map caption1 = subdivision type = Country… …   Wikipedia

• Density logging — Well logging Gamma ray logging Spontaneous potential logging Resistivity logging Density logging Sonic logging Caliper logging Mud logging LWD/MWD v · …   Wikipedia

• Dirichlet density — This article is not about the Dirichlet distribution of probability theory. In mathematics, the Dirichlet density (or analytic density) of a set of primes, named after Johann Gustav Dirichlet, is a measure of the size of the set that is easier to …   Wikipedia

• geophysical log — n a graphic record of the measured or computed physical characteristics of the rock section encountered in a borehole, plotted as a continuous function of depth. Measurements are made by a sonde which contains the detectors, as it is withdrawn… …   Coke&Coal Terminology

• resistivity log — n a measure of the voltage differential of strata along the walls of a borehole when electrical current is passed through the strata. The resistivity log requires a fluidfilled hole to provide a conductive medium constantly between electrodes on… …   Coke&Coal Terminology

• gamma-gamma log — See: density log …   Coke&Coal Terminology

• Schnirelmann density — In additive number theory, the Schnirelmann density of a sequence of numbers is a way to measure how dense the sequence is. It is named after Russian mathematician L.G. Schnirelmann, who was the first to study it. Contents 1 Definition 2… …   Wikipedia