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Waves in plates were among the first guided waves to be analyzed in this way. The analysis was developed and published in 1917 [3] by Horace Lamb, a leader in the mathematical physics of his day. Lamb's equations were derived by setting up formalism for a solid plate having infinite extent in the x and y directions, and thickness d in the z ...
The Lamb Site (11SC24) is an archeological site located in the central Illinois River Valley (CIRV). Excavations of this site began in the 1990s to attempt to understand the Mississippinization of the area following several generations after the intervention of the Cahokians before Columbus's discovery of America. During the eleventh and ...
Rayleigh waves are a type of surface acoustic wave that travel along the surface of solids. They can be produced in materials in many ways, such as by a localized impact or by piezo-electric transduction, and are frequently used in non-destructive testing for detecting defects.
The Kincaid Mounds Historic Site (11MX2-11; 11PO2-10) [3] c. 1050–1400 CE, [4] is a Mississippian culture archaeological site located at the southern tip of present-day U.S. state of Illinois, along the Ohio River.
Stoneley waves are most commonly generated during borehole sonic logging and vertical seismic profiling.They propagate along the walls of a fluid-filled borehole.They make up a large part of the low-frequency component of the signal from the seismic source and their attenuation is sensitive to fractures and formation permeability.
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Plates with serials 1 through 999 had "ILL-34" at the bottom; plates with serials 1000 through 9999 had "ILLINOIS-34"; and plates with serials 10-000 and up had "ILLINOIS-1934". The latter two groups were the first plates to feature the full state name. 1935 Blue on white with border line; "ILL-35", "ILLINOIS-35" or "ILLINOIS-1935" at top none
SPLAT! (short for an RF Signal Propagation, Loss, And Terrain analysis tool [1]) is a GNU GPL-licensed terrestrial radio propagation model application initially written for Linux but has since been ported for Windows and OS X.