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The hierarchical hidden Markov model (HHMM) is a statistical model derived from the hidden Markov model (HMM). In an HHMM, each state is considered to be a self-contained probabilistic model. More precisely, each state of the HHMM is itself an HHMM. HHMMs and HMMs are useful in many fields, including pattern recognition. [1] [2]
Hammerscale, also written hammer scale, is a flaky or spheroidal byproduct of the iron forging process (for modern equivalent, see mill scale). Hammerscale is almost universally recovered from archaeological excavations in areas where iron ore was refined and forged.
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The MAssive Cluster Survey (MACS) [1] [2] compiled and characterized a sample of very X-ray luminous (and thus, by inference, massive), distant clusters of galaxies. The sample comprises 124 spectroscopically confirmed clusters at 0.3 < z < 0.7.
Kanamori and American seismologist Thomas C. Hanks developed the moment magnitude scale which replaced the Richter scale as a measurement of the relative strength of earthquakes. [ 1 ] [ 2 ] [ 3 ] Kanamori invented the method for calculating slip distribution on the fault plane by teleseismic waveform with Masayuki Kikuchi .
The Modified Mercalli intensity scale (MM, MMI, or MCS) measures the effects of an earthquake at a given location. This is in contrast with the seismic magnitude usually reported for an earthquake. Magnitude scales measure the inherent force or strength of an earthquake – an event occurring at greater or lesser depth.
"The Hamilton Rating Scale for Depression" (PDF). Archived from the original (PDF) on 2007-11-20 (49.0 KB) Clinically Useful Psychiatric Scales: HAM-D (Hamilton Depression Rating Scale). Accessed March 6, 2009. Hamilton Depression Rating Scale - Original scientific paper published in 1960 in Psychiatry out of Print website. Accessed June 27, 2008.
In biochemistry, isozymes (also known as isoenzymes or more generally as multiple forms of enzymes) are enzymes that differ in amino acid sequence but catalyze the same chemical reaction.