23,453 research outputs found
Soils of western Wright Valley, Antarctica
No full textWestern Wright Valley, from Wright Upper Glacier to the western end of the Dais, can be divided into three broad geomorphic regions: the elevated Labyrinth, the narrow Dais which is connected to the Labyrinth, and the North and South forks which are bifurcated by the Dais. Soil associations of Typic Haplorthels/Haploturbels with ice-cemented permafrost at 70 cm. They are developed in situ in strongly weathered drift with very low surface boulder frequency and occur on the upper erosion surface of the Labyrinth and on the Dais. Typic Anhyorthels also occur at lower elevation on sinuous and patchy Wright Upper III drift within the forks. Salic Aquorthels exist only in the South Fork marginal to Don Juan Pond, whereas Salic Haplorthels occur in low areas of both South and North forks where any water table is> 50 cm. Most soils within the study area have an alkaline pH dominated by Na+ and Cl- ions. The low salt accumulation within Haplorthels/Haploturbels may be due to limited depth of soil development and possibly leaching
Soil and permafrost distribution, soil characterisation and soil vulnerability to human foot trampling, Wright Valley, Antarctica
No full textSoils and shallow permafrost in Wright Valley, Antarctica were mapped at a scale of 1:50 000 to depict their spatial distribution, and sampled to determine the main drivers for the soil classification.
In the cold desert of Wright Valley the Gelisol order of Soil Taxonomy was used to classify the soils. Soils on younger surfaces, associated with Lower Wright Glacier, Upper Wright Glacier and alpine glaciers, contain massive ice within 100 cm of the soil surface and are classified as Glacic Haplorthels or Glacic Haploturbels where there is field evidence of cryoturbation. As a generalization, at either end of the valley, soil moisture recharge from moist coastal air masses (eastern end) and blowing snow drifts maintain the depth to permafrost in which ice-cement occurs at 70 cm, are classified as Salic or Typic Anhyorthels or, where there is field evidence of cryoturbation, Anhyturbels.
While mapping soils in Wright Valley, the distribution and nature of the shallow permafrost were also investigated. Three classes of permafrost were established to coincide with definitions or conditions within Soil Taxonomy viz: permafrost with ice-cement at 70 cm, and massive ice.
A definition for a petrosalic horizon is proposed based on the properties of a salic horizon and the indurated nature of petrocalcic/petrogypsic horizons. The horizon is likely to occur only in the cold desert climate zones of Antarctica.
A rapid method to determine soil vulnerability to human foot traffic was developed. As vulnerability is the product of disturbance and rehabilitation, the method is based on the disturbance of 10 foot prints at a site multiplied by a soil rehabilitation factor based on the soil weathering stage. Although fine-grained aeolian sands are easily disturbed they also rehabilitate rapidly in the windy conditions of Wright Valley. In contrast, old stable soils have a tight cobbly desert pavement with reddish desert varnish and often show less foot print disturbance. When cobbles are overturned, however, fresh rock with thick salt accumulations and without desert varnish is exposed. It takes much time for the desert varnish to re-establish.
The spatial distribution of Soil Taxonomy soil classes, nature of the permafrost and soil vulnerability to human traffic are presented as three separate maps at 1:50 000 scale and as live GIS files
Stephen Antonakos: Room for Wright State
No full textThe guide is a visual record of the installation of an environmental sculpture in the Wright State University Art Gallery. Room for Wright State was designed and built specifically for the Art Gallery by Stephen Antonakos. This document is meant to lend permanence to a temporary exhibition and to allow the reader to participate in the experience of the project from inception through completion. As an aid to the reader, the interior dimensions of the truncated cube that houses the neon (viewed from the upper gallery level) are 18\u27 6-5/8 x 20\u27 1-5/8 x 13\u27 6 high (565 x 610.5 x 410 cm). The dimensions of the exterior walls (lower gallery level) are 29\u27 7 x 25\u27 9-1/4 x 11\u27 10-3/4 high (900 x 780.5 x 379 cm). The medium is wood, plasterboard, and clear (red) neon.https://corescholar.libraries.wright.edu/restein_catalogs/1009/thumbnail.jp
Data for: Reduced tenacity during “high-speed” territorial encounters in the intertidal owl limpet, Lottia gigantea: Agonistic escalation increases risk of wash-off.
No full text79 measurements of limpet tenacity in the context of behavior and speed. Speed is in cm per min. Animals showing Continued Foraging assigned speed of 0.2 cm per min (see Wright 1982)Response. 0-Continued Foraging: Subject moves < 1 shell length in 90 s, or turns less than 90 degrees in 90s; Cephalic tentacles visible throughout 90s.1-Retreat behavior: Subject turns more than 90 degrees away from bait limpet, and moves > 1 shell length during 90s test period.2-Territorial behavior: Subject accelerates toward bait limpet, moving > than one shell length during 90s test period.Sl- Shell length in mm.Tenacity-Newtons required to remove subject from substratum divided by its aperture area.ApArea- Limpet aperture area, calculated from Shell Length (see Materials and Methods
Johnson Wax Building
No full textGeneral view, from southwest, with globe in foreground and research tower behind; "Johnson Wax Headquarters (1936-1939), the world headquarters and administration building of the SC Johnson Wax Company in Racine, Wisconsin was designed by American architect, Frank Lloyd Wright, for the company's president, Herbert F. "Hib" Johnson. An example of streamlined design, the Johnson Wax Administration Building, as it is also known, has over 200 types of curved red bricks making up the exterior and interior of the building, and Pyrex glass tubing from the ceiling and clerestories to let in soft light. The colors that Frank Lloyd Wright chose for the Johnson Wax building are cream (for the columns and mortar) and "Cherokee Red" for the floors, bricks, and furniture. The furniture, also designed by the architect, and manufactured by Steelcase, Inc., echoes the curving lines of the building. One approaches the building by walking underneath the 14-story tall Johnson Wax Research Tower (1944-1951) and through a low parking lot, which is supported by steel-reinforced "dendriform" (tree-shaped) concrete columns. The parking lot ceiling creates a compression of space, and the dendriform columns are echoed inside the building, where they rise over two stories tall, supporting the structure's roof. This rise in height when one enters the administration building creates a release of spatial compression. Compression and release of space were concepts that Wright used in many of his designs, including the playroom in his Oak Park Home and Studio, the Unity Temple in Oak Park, Illinois, the Solomon R. Guggenheim Museum in New York City, and many others. The largest expanse of space in the Johnson Wax building is the Great Workroom, as Wright called it. This open area has no internal walls and was intended for secretaries of the Johnson Wax company, while a mezzanine holds the administrators. The construction of the Johnson Wax building did create controversies for the architect. In the Great Workroom, the dendriform columns are 9 inches (23 cm) in diameter at the bottom and 18 feet (550 cm) in diameter at the top, on a wide, round platform that Wright termed, the "lily pad." This difference in diameter between the bottom and top of the column was not according to building codes at the time. Building inspectors required that a test column be built and loaded with twelve tons of material. The test column, once it was built, was loaded with sixty tons of materials before the "calyx", or part of the column that meets the lily pad, cracked (crashing the 60 tons of materials to the ground, and bursting a water main 30 feet underground). Wright was given his building permit after this demonstration. Additionally, it was very difficult to properly seal the glass tubing of the clerestories and roof, thus causing leaks. This problem was not solved until rubber gaskets were placed between the tubes, and corrugated plastic was used in the roof to seal it, while mimicking the glass tubes. And finally, Wright's chair design for Johnson Wax originally only had three legs, supposedly to encourage better posture (because one would have to keep both feet on the ground at all times to sit in it). However, the chair design proved too unstable, tipping very easily. Herbert Johnson, needing a new chair design, purportedly asked Wright to sit in one of the three-legged chairs and, after Wright fell from the chair, the architect designed new chairs for Johnson Wax with four legs; these chairs, and the other office furniture designed by Wright, are still used. The Administration Building and Research Tower were both designated National Historic Landmarks in 1976." Source: Wikipedia; http://en.wikipedia.org/wiki/Main_Page (accessed 7/5/2008
Gavotte (Op. 9)
No full textHandwritten manuscript of "Gavotte (Op. 9)" by N. Louise Wright, for piano. Signed by author, also inscribed "Director of Music Howard-Payne College Fayette, Mo." Inscribed by Lillian Kappelmann. 4p. Made from paper pamphlet preprinted with music staves. 10.25" (26 cm) wide x 13.125" (33.5 cm) high
Eliphalet Nott Wright
No full textPhotograph of Eliphalet Nott Wright. Photo by CM Bell, Washington DC, c. 1896
Wright Brothers Memorial photograph
No full textTwo photographs document the Wright Brothers' Monument on Wright-Patterson Air Force Base in Dayton, Ohio. Wright Brothers Hill is a 27-acre park designed by Frederick Law Olmsted Jr. and John Charles Olmsted, the son and step-son, respectively, of pioneering landscape architect Frederick Law Olmsted Sr. The monument was dedicated on Orville Wright's 69th birthday in 1940. It overlooks Huffman Prairie, where the Wright Brothers tested many of their flying machines. The monument is made of granite from North Carolina and rests on a bed of sand taken from Kitty Hawk. The photographs measure 8" x 10" (20.32 x 25.4 cm)
John Wright
No full textInvitaciones a la exposición de John Wright realizada en La galería en 1982. Invitaciones tipo díptico a color de 20 cm x 20 cm cerrado. Portada: obra del artista. Interior: obra del artista. Contraportada: obra del artista. Adjunta una invitación tipo tarjeta de 15 cm x 15 cm blanco y negro. Lado 1: texto de invitación.Unidad Documental Simple5 invitaciones.5 invitaciones sin sobre.Los 5 dípticos contienen tarjetas de invitación
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