Prehistory in the Dismal Lake Area, N.W.T., Canada

Reports on the summer 1955 archeological survey of the Coronation Gulf area. Test diggings at three sites on Dismal Lake (1:a, 1:b, 2) and one at Kamut Lake yielded numerous chipped and flaked stone implements (knives, scrapers, poin.ts, burins, etc.). The large proportion of microlithic artifacts at Dismal-2 and Kamut Lake sites is noted and "the ancestral role of microlithic technology" in the American Arctic stressed. The central position of the Dismal-Kamut Lake complexes and the technological relationship of the microlithic Dismal-2 complex to the western sites of Engigstciak (AB. No. 46551), Anaktuvuk Pass and Cape Denbigh as well as east to the Sarqaq culture of West Greenland, Independence I & II in Pearyland (AB. No. 52343) and the proto-Dorset T-1 site on Southampton Island (AB. No. 44425, 50311) are discussed. Dismal-2 is related in some way to the Dorset culture, it shows traits of all stages from proto- to late Dorset. The ecology of the Dorset culture and its dual land- and sea-oriented economy are dealt with and the musk-ox considered an important game animal in the Dismal Lake area. In the "geographical funnel" of Alaska-northwest Canada, compounds of culture occur, attesting it an area where Old World impulses met, diffused and gave rise to New World complexes including the "Eskimo" traits found in archaic Indian cultures of the east coast from Labrador to Maryland

Rooted and grounded in love : cultivating the Christian heart through dispositional spiritual formation-in-common

https://place.asburyseminary.edu/ecommonsatsdissertations/1808/thumbnail.jp

Numerical calculation of the internal flow field in a centrifugal compressor impeller

An iterative numerical method has been developed for the calculation of steady, three-dimensional, viscous, compressible flow fields in centrifugal compressor impellers. The computer code, which embodies the method, solves the steady three dimensional, compressible Navier-Stokes equations in rotating, curvilinear coordinates. The solution takes place on blade-to-blade surfaces of revolution which move from the hub to the shroud during each iteration

Larval Chironomids of the St. Francis Sunken Lands in Northeast Arkansas

Sixty semi-annual collections (August 1987-July 1988) were made from 30 stations by sampling each station twice for 1.5 man-hours with an aquatic dipnet. Larval chironomids were mounted on slides and identified at 400-1000 magnifications using a Leitz Dialux 20 EB microscope. A survey of the aquatic macroinvertebrates of the St. Francis Sunken Lands in northeast Arkansas revealed 36 taxa of Order Diptera, Family Chironomidae. The taxa were used to evaluate the general health of the aquatic environment. Stations that were located within the least disturbed areas, which were old river channels and oxbows, contained the highest number of organisms and greatest diversity of taxa per station. Stations that were located either in channelized ditches with intense agricultural activities in the watershed or in the St. Francis Lake area, here the homogeneous substate restricted habitat diversity, contained fewer numbers of organisms and taxa per station