Three principal designs are used for air wells, designated as high mass, radiative, and active: High-mass air wells were used in the early 20th century, but the approach failed.
To date, solid-state, flat-panel, DR detectors have come in two principal designs, the indirect-conversion (x-ray scintillator-based) and the direct-conversion (x-ray photoconductor-based) types.
According to art director Marcus Lehto, the principal designs for the race came from environmental artist Paul Russell.
Three principal designs have previously proven to facilitate xylose utilization in SSCF of lignocellulosic materials: fed-batch (substrate feed), prefermentation and controlled enzyme feeding [ 10, 21, 22].
After a five-minute drive, we pulled into the 13.5-acre property to view the work of Saarinen (and the principal design associate Kevin Roche), the interior designer Alexander Girard and the landscape architect Dan Kiley.
In addition to Eero Saarinen, the house and gardens showcases the work of leading 20th-century figures such as interior designer Alexander Girard, landscape architect Dan Kiley, and principal design associate at the Saarinen office, Kevin Roche.
Mr. Libeskind, 63, is a co-founder, with his wife, Nina, of Studio Daniel Libeskind, and is its principal design architect.
The quilts are hung according to eight principal design themes: album, Amish, appliqué, chintz appliqué, pieced, Victorian (crazy and log cabin), white work and whole cloth.
Mr. Martin, 34, is a principal design engineer at Accelerant Networks in Beaverton, Ore., makers of computer chips for telecommunications equipment.
Later, and of more consequence, Butler became one of the principal design consultants for a number of British-built passenger airplanes.
Citing an insurance investigation, the central figures -- the head of the syndicate, John Marshall; the builder, Eric Goetz of Bristol, R.I.; and the principal design team, Farr Yacht Designs of Annapolis, Md .-- had provided no explanation.
