A Preliminary Report on the Early History and Archaeology of Kahauale'A, Puna, Hawaii (open access)

A Preliminary Report on the Early History and Archaeology of Kahauale'A, Puna, Hawaii

The following is a report on the findings of a documentary literature search on the ahupuaa of Kahauale'a in the Puna District of the island of Hawaii. Attention is given to the entirety of the ahupuaa, though the emphasis is on the mauka portions from about 1,500 to 3,800-feet elevation, or roughly three miles inland to the northern terminus of the ahupuaa, just below Kilauea. The report was commissioned by The Estate of James Campbell for purposes of ascertaining what the extent of early Hawaiian activities and/or habitation occurred in the mauka regions of Kahauale'a--specifically to see if proposed geothermal drilling activities in these areas would disturb any archaeological sites.
Date: April 14, 1982
Creator: Holmes, Tommy
Object Type: Report
System: The UNT Digital Library
Improved method for preparing rare earth sesquichalcogenides (open access)

Improved method for preparing rare earth sesquichalcogenides

An improved method for the preparation of high purity rare earth sesquichalcogenides is described. The rare earth, as one or more pieces of the metal, is sealed under a vacuum with a stoichiometric amount of sulfur or selenium and a small amount of iodine into a quartz reaction vessel. The sealed vessel is then heated to above the vaporization temperature of the chalcogen and below the melting temperature of the rare earth metal and maintained until the product has been formed. The iodine is then vaporized off leaving a pure product. The rare earth sulfides and selenides thus formed are useful as semiconductors and as thermoelectric generators. 3 tables.
Date: April 14, 1982
Creator: Takeshita, Takuo; Beaudry, Bernard J. & Gschneidner, Karl A., Jr.
Object Type: Text
System: The UNT Digital Library